/* =====================================================
   FBA Student Management System — Design System v2
   ຄະນະບໍລິຫານທຸລະກິດ · ລະບົບຄຸ້ມຄອງນັກສຶກສາ
   Theme: Light Sky Blue (ໂທນສີຟ້າອ່ອນ ເອກະລັກຄະນະບໍລິຫານທຸລະກິດ)
   ===================================================== */

/* =====================================================
   1. Design Tokens
   ===================================================== */
:root {
    /* Brand scale — FBA light blue */
    --brand-50:  #eaf4ff;
    --brand-100: #d6e9ff;
    --brand-200: #abd1ff;
    --brand-300: #74b3ff;
    --brand-400: #3d95f7;
    --brand-500: #1a7ceb;
    --brand-600: #0b64d0;
    --brand-700: #0a51aa;
    --brand-800: #0c4287;
    --brand-900: #0f366b;

    /* Legacy aliases (used inside page files) */
    --primary: var(--brand-600);
    --primary-light: var(--brand-500);
    --primary-dark: var(--brand-800);
    --primary-color: var(--brand-600);
    --secondary: #64748b;
    --accent: #f5a524;
    --accent-light: #fbbf4d;

    /* Status */
    --success: #16a34a;
    --success-soft: #e8f7ee;
    --warning: #d97706;
    --warning-soft: #fdf3e2;
    --danger: #dc2626;
    --danger-soft: #fdecec;
    --info: #0891b2;
    --info-soft: #e3f5fa;
    --violet: #7c3aed;
    --violet-soft: #f1ebfe;

    /* Surfaces */
    --bg-main: #e6f0fb;
    --bg-card: #ffffff;
    --surface-2: #f2f8ff;
    --line: #d2e2f4;
    --line-strong: #b9d0ea;

    /* Text */
    --ink: #1c3350;
    --ink-strong: #0f2744;
    --text-primary: var(--ink);
    --text-secondary: #4f6789;
    --text-soft: #7d93b3;

    /* Layout */
    --sidebar-width: 272px;
    --sidebar-mini: 84px;
    --header-h: 66px;

    /* Radius */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-full: 50%;

    /* Shadows (blue-tinted, soft) */
    --shadow-xs: 0 1px 2px rgba(15, 39, 68, 0.05);
    --shadow-sm: 0 1px 2px rgba(15, 39, 68, 0.04), 0 2px 8px rgba(15, 39, 68, 0.04);
    --shadow-md: 0 4px 14px rgba(15, 39, 68, 0.07);
    --shadow-lg: 0 12px 32px rgba(15, 39, 68, 0.10);
    --shadow-xl: 0 24px 56px rgba(15, 39, 68, 0.16);
    --ring: 0 0 0 4px rgba(11, 100, 208, 0.14);

    /* Motion */
    --transition: all 0.22s cubic-bezier(.4, 0, .2, 1);
    --transition-fast: all 0.14s ease;

    /* Type */
    --font-ui: 'Noto Sans Lao', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-num: 'Inter', 'Noto Sans Lao', system-ui, sans-serif;
    --font-doc: 'Phetsarath OT', 'Noto Sans Lao Looped', 'Noto Sans Lao', serif;

    /* Bootstrap 5.3 theme bridge */
    --bs-primary: #0b64d0;
    --bs-primary-rgb: 11, 100, 208;
    --bs-secondary: #64748b;
    --bs-secondary-rgb: 100, 116, 139;
    --bs-success: #16a34a;
    --bs-success-rgb: 22, 163, 74;
    --bs-info: #0891b2;
    --bs-info-rgb: 8, 145, 178;
    --bs-warning: #f59e0b;
    --bs-warning-rgb: 245, 158, 11;
    --bs-danger: #dc2626;
    --bs-danger-rgb: 220, 38, 38;
    --bs-light: #f3f7fc;
    --bs-light-rgb: 243, 247, 252;
    --bs-body-font-family: var(--font-ui);
    --bs-body-color: #1c3350;
    --bs-body-color-rgb: 28, 51, 80;
    --bs-body-bg: #e6f0fb;
    --bs-border-color: #d2e2f4;
    --bs-secondary-color: #62789a;
    --bs-link-color: #0b64d0;
    --bs-link-color-rgb: 11, 100, 208;
    --bs-link-hover-color: #155fae;
    --bs-link-hover-color-rgb: 21, 95, 174;
    --bs-primary-bg-subtle: #d6e9ff;
    --bs-primary-border-subtle: #c7e0fb;
    --bs-primary-text-emphasis: #174f8c;
    --bs-focus-ring-color: rgba(11, 100, 208, 0.2);
    --bs-border-radius: 10px;
    --bs-border-radius-sm: 8px;
    --bs-border-radius-lg: 14px;
}

/* =====================================================
   2. Base
   ===================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-ui);
    font-size: 14.5px;
    color: var(--ink);
    background-color: var(--bg-main);
    background-image:
        radial-gradient(1200px 420px at 100% -10%, rgba(99, 174, 242, 0.12), transparent 60%),
        radial-gradient(900px 380px at -10% 0%, rgba(199, 224, 251, 0.35), transparent 60%);
    background-attachment: fixed;
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

a.text-decoration-underline,
.table a:not(.btn) {
    color: var(--brand-600);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.35;
    color: var(--ink-strong);
}

img { max-width: 100%; }

::selection {
    background: var(--brand-200);
    color: var(--ink-strong);
}

:focus-visible {
    outline: 2px solid var(--brand-400);
    outline-offset: 2px;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: #c9d8e8;
    border-radius: 10px;
    border: 2px solid var(--bg-main);
}
::-webkit-scrollbar-thumb:hover { background: #a9c0d8; }

/* =====================================================
   3. App Layout
   ===================================================== */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-width: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.25s ease, width 0.25s ease;
}

.content-area {
    flex: 1 0 auto;
    width: 100%;
    max-width: 1760px;
    margin: 0 auto;
    padding: 26px 28px 32px;
    min-height: calc(100vh - var(--header-h) - 56px);
}

/* =====================================================
   4. Sidebar
   ===================================================== */
.sidebar {
    width: var(--sidebar-width);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
    border-right: 1px solid var(--line);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: width 0.25s ease, transform 0.28s cubic-bezier(.4, 0, .2, 1);
    box-shadow: 2px 0 18px rgba(15, 39, 68, 0.04);
}

.sidebar-logo {
    margin: 14px 14px 6px;
    padding: 16px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(120px 80px at 100% 0%, rgba(255, 255, 255, 0.55), transparent 70%),
        linear-gradient(135deg, var(--brand-100) 0%, var(--brand-200) 100%);
    border: 1px solid var(--brand-200);
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar-logo::after {
    content: '';
    position: absolute;
    right: -26px;
    bottom: -34px;
    width: 96px;
    height: 96px;
    border-radius: 50%;
    border: 14px solid rgba(255, 255, 255, 0.35);
    pointer-events: none;
}

.sidebar-logo .logo-img,
.sidebar-logo .logo-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 4px 12px rgba(11, 100, 208, 0.18);
}

.sidebar-logo .logo-img {
    object-fit: contain;
    padding: 4px;
}

.sidebar-logo .logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-600);
    font-size: 22px;
}

.sidebar-logo .brand-text {
    min-width: 0;
    position: relative;
    z-index: 1;
}

.sidebar-logo h3 {
    color: var(--brand-900);
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 1px;
    line-height: 1.35;
}

.sidebar-logo p {
    color: var(--brand-700);
    font-size: 12px;
    margin: 0;
    opacity: 0.9;
}

.sidebar-scroll {
    flex: 1 1 auto;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0 12px;
    scrollbar-width: thin;
}

.sidebar-scroll::-webkit-scrollbar { width: 6px; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: #d7e4f1; border: 0; }

.sidebar-nav {
    padding: 4px 12px;
    margin: 0;
    list-style: none;
}

.sidebar-nav .nav-label {
    color: var(--text-soft);
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 14px 12px 6px;
    list-style: none;
    white-space: nowrap;
}

.sidebar-nav .nav-item {
    margin-bottom: 2px;
    list-style: none;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 7px 10px;
    color: #3b5474;
    border-radius: 12px;
    font-size: 14.5px;
    font-weight: 500;
    position: relative;
    transition: background 0.18s ease, color 0.18s ease;
    white-space: nowrap;
}

.sidebar-nav .nav-link i {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 15px;
    color: var(--brand-600);
    background: var(--brand-50);
    border: 1px solid var(--brand-100);
    transition: var(--transition-fast);
}

.sidebar-nav .nav-link span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-nav .nav-link:hover {
    background: var(--brand-50);
    color: var(--brand-800);
}

.sidebar-nav .nav-link:hover i {
    background: #fff;
    border-color: var(--brand-200);
}

.sidebar-nav .nav-link.active {
    background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-600) 100%);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(11, 100, 208, 0.28);
}

.sidebar-nav .nav-link.active i {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.28);
    color: #fff;
}

.sidebar-divider {
    height: 1px;
    background: var(--line);
    margin: 10px 14px;
    list-style: none;
}

.sidebar-nav .nav-link.logout-link {
    color: #c53030;
}

.sidebar-nav .nav-link.logout-link i {
    color: #dc2626;
    background: var(--danger-soft);
    border-color: #f9d6d6;
}

.sidebar-nav .nav-link.logout-link:hover {
    background: var(--danger-soft);
    color: #b91c1c;
}

.sidebar-footer {
    flex-shrink: 0;
    padding: 10px 16px 14px;
    border-top: 1px solid var(--line);
    font-size: 11.5px;
    color: var(--text-soft);
    white-space: nowrap;
    overflow: hidden;
}

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 39, 68, 0.38);
    backdrop-filter: blur(2px);
    z-index: 1035;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ---------- Mini (collapsed) sidebar — desktop ---------- */
@media (min-width: 993px) {
    body.sidebar-mini .sidebar { width: var(--sidebar-mini); }
    body.sidebar-mini .main-content {
        margin-left: var(--sidebar-mini);
        width: calc(100% - var(--sidebar-mini));
    }
    body.sidebar-mini .sidebar-logo {
        margin: 14px 12px 6px;
        padding: 10px;
        justify-content: center;
    }
    body.sidebar-mini .sidebar-logo .brand-text,
    body.sidebar-mini .sidebar-logo::after,
    body.sidebar-mini .sidebar-nav .nav-label,
    body.sidebar-mini .sidebar-nav .nav-link span,
    body.sidebar-mini .sidebar-footer { display: none; }
    body.sidebar-mini .sidebar-logo .logo-img,
    body.sidebar-mini .sidebar-logo .logo-icon { width: 42px; height: 42px; }
    body.sidebar-mini .sidebar-nav { padding: 4px 12px; }
    body.sidebar-mini .sidebar-nav .nav-link {
        justify-content: center;
        padding: 6px;
    }
    body.sidebar-mini .sidebar-nav .nav-item + .nav-label { display: block; height: 1px; padding: 0; margin: 10px 8px; background: var(--line); font-size: 0; }
    body.sidebar-mini .sidebar-scroll { overflow: visible; }
    body.sidebar-mini .sidebar-nav .nav-link[data-title]:hover::after {
        content: attr(data-title);
        position: absolute;
        left: calc(100% + 12px);
        top: 50%;
        transform: translateY(-50%);
        background: var(--ink-strong);
        color: #fff;
        font-size: 12.5px;
        font-weight: 500;
        padding: 6px 12px;
        border-radius: 8px;
        white-space: nowrap;
        box-shadow: var(--shadow-md);
        z-index: 1100;
        pointer-events: none;
    }
}

/* =====================================================
   5. Top Header
   ===================================================== */
.top-header {
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.hamburger-btn,
.header-icon-btn {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    font-size: 16px;
    color: var(--brand-700);
    cursor: pointer;
    transition: var(--transition-fast);
}

.hamburger-btn:hover,
.header-icon-btn:hover {
    background: var(--brand-50);
    border-color: var(--brand-200);
}

.hamburger-btn { display: none; }

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    min-width: 0;
}

.breadcrumb-nav a {
    color: var(--text-secondary);
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-50);
}

.breadcrumb-nav a:hover { color: var(--brand-700); background: var(--brand-100); }

.breadcrumb-nav .separator {
    color: var(--text-soft);
    font-size: 11px;
}

.breadcrumb-nav .current {
    color: var(--ink-strong);
    font-weight: 600;
    font-size: 14.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 38px;
    padding: 0 14px;
    border-radius: 12px;
    background: var(--brand-50);
    border: 1px solid var(--brand-100);
    color: var(--brand-800);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}

.header-chip i { color: var(--brand-500); }

.user-dropdown {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 4px 6px 4px 12px;
    border-radius: 14px;
    border: 1px solid transparent;
    transition: var(--transition-fast);
}

.user-dropdown:hover,
.user-dropdown[aria-expanded="true"] {
    background: #fff;
    border-color: var(--line);
    box-shadow: var(--shadow-xs);
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 0 0 2px #fff, 0 0 0 3px var(--brand-200);
}

.user-info { text-align: right; line-height: 1.3; }
.user-info .user-name { font-size: 13.5px; font-weight: 600; color: var(--ink-strong); }
.user-info .user-role { font-size: 11.5px; color: var(--text-secondary); }

.dropdown-menu-custom {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--line);
    padding: 8px;
    min-width: 220px;
    margin-top: 8px !important;
}

.dropdown-menu-custom .dropdown-header-user {
    padding: 8px 10px 10px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 6px;
}

.dropdown-menu-custom .dropdown-header-user strong { display: block; font-size: 13.5px; color: var(--ink-strong); }
.dropdown-menu-custom .dropdown-header-user small { color: var(--text-secondary); }

.dropdown-menu-custom a,
.dropdown-menu-custom .dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    color: var(--ink);
}

.dropdown-menu-custom a:hover,
.dropdown-menu-custom .dropdown-item:hover { background: var(--brand-50); color: var(--brand-800); }
.dropdown-menu-custom a i { width: 18px; text-align: center; color: var(--brand-500); }
.dropdown-menu-custom a.text-danger i { color: var(--danger); }
.dropdown-menu-custom a.text-danger:hover { background: var(--danger-soft); }
.dropdown-menu-custom .divider,
.dropdown-menu-custom .dropdown-divider { height: 1px; background: var(--line); margin: 6px 0; border: 0; }

/* =====================================================
   6. App Footer
   ===================================================== */
.app-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px 16px;
    padding: 16px 28px 20px;
    font-size: 12.5px;
    color: var(--text-secondary);
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.5);
}

.app-footer strong { color: var(--brand-700); font-weight: 600; }

/* =====================================================
   7. Page Headers
   ===================================================== */
.content-header,
.page-head {
    position: relative;
    background:
        radial-gradient(420px 140px at 100% 0%, rgba(99, 174, 242, 0.18), transparent 70%),
        linear-gradient(135deg, #ffffff 0%, var(--brand-50) 100%);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    padding: 18px 22px;
    margin-bottom: 22px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.content-header::before,
.page-head::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: linear-gradient(180deg, var(--brand-400), var(--brand-600));
}

.content-header h1,
.content-header .h3,
.content-header h4,
.page-head h1,
.page-head h2,
.page-head h3,
.page-head h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--ink-strong) !important;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    line-height: 1.4;
}

.content-header h1 > i,
.content-header .h3 > i,
.content-header h4 > i,
.page-head h1 > i,
.page-head h2 > i,
.page-head h3 > i,
.page-head h4 > i {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--brand-100);
    color: var(--brand-600) !important;
    font-size: 17px;
    margin-right: 8px !important;
    box-shadow: var(--shadow-xs);
}

.content-header p,
.page-head p { color: var(--text-secondary); }

.content-body { display: block; }

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-title { font-size: 1.35rem; font-weight: 700; color: var(--ink-strong); }
.page-subtitle { color: var(--text-secondary); font-size: 13px; margin-top: 4px; }
.text-gray-800 { color: var(--ink-strong) !important; }

/* Welcome hero (dashboard) */
.welcome-hero {
    position: relative;
    border-radius: 22px;
    padding: 26px 28px;
    margin-bottom: 22px;
    overflow: hidden;
    color: var(--ink-strong);
    background:
        radial-gradient(360px 200px at 92% 10%, rgba(255, 255, 255, 0.7), transparent 70%),
        linear-gradient(120deg, var(--brand-100) 0%, var(--brand-200) 55%, #b3d6fa 100%);
    border: 1px solid var(--brand-200);
    box-shadow: 0 10px 30px rgba(11, 100, 208, 0.12);
}

.welcome-hero::before,
.welcome-hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.welcome-hero::before {
    width: 240px; height: 240px;
    right: -60px; top: -110px;
    border: 28px solid rgba(255, 255, 255, 0.35);
}

.welcome-hero::after {
    width: 140px; height: 140px;
    right: 160px; bottom: -90px;
    background: rgba(255, 255, 255, 0.28);
}

.welcome-hero > * { position: relative; z-index: 1; }
.welcome-hero .hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12.5px; font-weight: 600;
    color: var(--brand-800);
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.9);
    padding: 4px 12px; border-radius: 999px;
    margin-bottom: 10px;
}
.welcome-hero h2 { font-size: 1.6rem; margin: 0 0 4px; color: var(--brand-900); }
.welcome-hero p { margin: 0; color: var(--brand-800); opacity: 0.9; }
.welcome-hero .hero-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.welcome-hero .hero-actions .btn { background: rgba(255, 255, 255, 0.85); border: 1px solid #fff; color: var(--brand-800); }
.welcome-hero .hero-actions .btn:hover { background: #fff; color: var(--brand-900); }
.welcome-hero .hero-actions .btn-primary { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
.welcome-hero .hero-actions .btn-primary:hover { background: var(--brand-700); color: #fff; }

/* =====================================================
   8. Cards
   ===================================================== */
.card {
    --bs-card-border-color: var(--line);
    --bs-card-border-radius: var(--radius-lg);
    --bs-card-inner-border-radius: calc(var(--radius-lg) - 1px);
    --bs-card-cap-bg: #fff;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--line);
    overflow: hidden;
}

@media screen { .card.border-0:not(.border-top):not(.border-start):not(.border-bottom) { border: 1px solid var(--line) !important; } }
.card.shadow,
.card.shadow-sm { box-shadow: var(--shadow-sm) !important; }

.card-header {
    padding: 15px 20px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px 12px;
}

.card-header > :only-child { flex: 1 1 auto; }
.card-header > .nav-tabs:only-child,
.card-header > ul:only-child { width: 100%; }

.card-header h3, .card-header h4, .card-header h5, .card-header h6,
.card-header .card-title {
    font-size: 15.5px;
    font-weight: 700;
    color: var(--ink-strong);
    margin: 0;
}

.card-header h3 > i, .card-header h4 > i, .card-header h5 > i, .card-header h6 > i {
    color: var(--brand-500);
}

.card-header.bg-primary,
.card-header.bg-info,
.card-header.bg-success,
.card-header.bg-danger,
.card-header.bg-warning,
.card-header.bg-dark,
.card-header.bg-secondary { border-bottom: 0; }

.card-header.bg-primary,
.modal-header.bg-primary {
    background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-700) 100%) !important;
}

.card-header.bg-primary h1, .card-header.bg-primary h2, .card-header.bg-primary h3,
.card-header.bg-primary h4, .card-header.bg-primary h5, .card-header.bg-primary h6,
.card-header.bg-primary h5 > i, .card-header.bg-primary h6 > i,
.card-header.bg-info h5, .card-header.bg-info h6,
.card-header.bg-success h5, .card-header.bg-success h6,
.card-header.bg-danger h5, .card-header.bg-danger h6,
.card-header.text-white h5, .card-header.text-white h6,
.card-header.text-white i { color: #fff !important; }

.card-body { padding: 20px; }

.card-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--line);
    background: var(--surface-2);
}

/* =====================================================
   9. Stat Cards
   ===================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.stat-card {
    --tone: var(--brand-600);
    --tone-soft: var(--brand-100);
    --tone-line: var(--brand-200);
    position: relative;
    overflow: hidden;
    background: #fff;
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
    cursor: default;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -38px;
    right: -38px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--tone-soft);
    opacity: 0.75;
    pointer-events: none;
}

.stat-card::after {
    content: '';
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 0;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(90deg, var(--tone), transparent);
    opacity: 0.55;
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--tone-line);
    transform: translateY(-2px);
}

.stat-card > * { position: relative; z-index: 1; }

.stat-card .stat-icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    margin-bottom: 14px;
    color: var(--tone) !important;
    background: var(--tone-soft);
    border: 1px solid var(--tone-line);
}

.stat-card .stat-value {
    font-family: var(--font-num);
    font-size: 26px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--ink-strong);
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
    margin-bottom: 2px;
    word-break: break-word;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-card .stat-meta {
    margin-top: 8px;
    font-size: 12px;
    color: var(--tone);
    font-weight: 600;
}

.stat-card.blue   { --tone: #1a73d1; --tone-soft: #e3f0fd; --tone-line: #c7e0fb; }
.stat-card.sky    { --tone: #0284c7; --tone-soft: #e0f2fe; --tone-line: #bae6fd; }
.stat-card.green  { --tone: #16a34a; --tone-soft: #e5f6ec; --tone-line: #c4ebd3; }
.stat-card.teal   { --tone: #0d9488; --tone-soft: #e0f5f2; --tone-line: #bfe9e3; }
.stat-card.gold,
.stat-card.amber  { --tone: #d97706; --tone-soft: #fdf1dc; --tone-line: #f8deb0; }
.stat-card.red    { --tone: #dc2626; --tone-soft: #fde8e8; --tone-line: #f9cccc; }
.stat-card.violet { --tone: #7c3aed; --tone-soft: #f0e9fe; --tone-line: #ddd0fc; }
.stat-card.cyan   { --tone: #0891b2; --tone-soft: #e1f4f9; --tone-line: #bfe6f0; }

/* =====================================================
   10. Tables
   ===================================================== */
.table-container,
.table-responsive {
    border-radius: 0;
    -webkit-overflow-scrolling: touch;
}

.table {
    --bs-table-color: var(--ink);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--line);
    --bs-table-striped-bg: rgba(11, 100, 208, 0.028);
    --bs-table-striped-color: var(--ink);
    --bs-table-hover-bg: rgba(11, 100, 208, 0.055);
    --bs-table-hover-color: var(--ink);
    --bs-table-active-bg: rgba(11, 100, 208, 0.08);
    width: 100%;
    margin-bottom: 0;
    vertical-align: middle;
}

.table > :not(caption) > * > * {
    padding: 11px 14px;
    border-bottom-color: var(--line);
}

.table thead th {
    background: var(--brand-50);
    color: var(--brand-900);
    font-weight: 600;
    font-size: 13.5px;
    letter-spacing: 0.01em;
    border-bottom: 1px solid var(--brand-100) !important;
    white-space: nowrap;
    vertical-align: middle;
}

.table thead th:first-child { border-top-left-radius: 0; }

.table tbody td {
    font-size: 14px;
    vertical-align: middle;
}

.table.table-sm > :not(caption) > * > * { padding: 7px 10px; }

.table-bordered > :not(caption) > * > * { border-color: var(--line); }

.table .table-light,
.table thead.table-light th,
.table-light > th,
.table-light > td {
    --bs-table-bg: var(--brand-50);
    --bs-table-color: var(--brand-900);
    background-color: var(--brand-50) !important;
}

.table thead.table-dark th,
.table tfoot.table-dark td,
.table tfoot.table-dark th,
.table .table-dark > * {
    --bs-table-bg: var(--brand-700);
    background: var(--brand-700) !important;
    color: #fff !important;
    border-color: var(--brand-700) !important;
}

.table tfoot td,
.table tfoot th {
    background: var(--surface-2);
    font-weight: 600;
}

.table .text-muted { color: var(--text-secondary) !important; }

/* DataTables integration */
.dataTables_wrapper { font-size: 13.5px; color: var(--text-secondary); }
.dataTables_wrapper .dataTables_filter label,
.dataTables_wrapper .dataTables_length label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-weight: 500;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-md);
    padding: 7px 12px;
    font-family: var(--font-ui);
    background-color: #fff;
    color: var(--ink);
    transition: var(--transition-fast);
    margin: 0 !important;
}

.dataTables_wrapper .dataTables_length select { padding-right: 30px; min-width: 76px; }

.dataTables_wrapper .dataTables_filter input:focus,
.dataTables_wrapper .dataTables_length select:focus {
    border-color: var(--brand-400);
    box-shadow: var(--ring);
    outline: none;
}

.dataTables_wrapper .dataTables_info { padding-top: 0 !important; }
.dataTables_wrapper .dataTables_paginate { padding-top: 0 !important; }

/* =====================================================
   11. Forms
   ===================================================== */
.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-label .required,
.required { color: var(--danger); margin-left: 2px; }

.form-control,
.form-select {
    font-family: var(--font-ui);
    font-size: 14.5px;
    color: var(--ink);
    background-color: #fff;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-md);
    padding: 9px 13px;
    min-height: 42px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.form-select { padding-right: 36px; }

.form-control:hover,
.form-select:hover { border-color: #bcd0e5; }

.form-control:focus,
.form-select:focus {
    border-color: var(--brand-400);
    box-shadow: var(--ring);
    outline: none;
}

.form-control::placeholder { color: #9fb0c6; }

.form-control:disabled,
.form-control[readonly]:not(._ac-kill),
.form-select:disabled {
    background-color: #f4f8fc;
    color: #5a7090;
}

.form-control-sm, .form-select-sm {
    min-height: 34px;
    padding: 5px 10px;
    font-size: 13.5px;
    border-radius: var(--radius-sm);
}

.form-select-sm { padding-right: 30px; }

.form-control-lg, .form-select-lg { min-height: 50px; font-size: 16px; }

textarea.form-control { min-height: 96px; resize: vertical; }

.form-control[type="file"] { padding: 7px 10px; }
.form-control[type="file"]::file-selector-button {
    background: var(--brand-50);
    color: var(--brand-800);
    border: 0;
    border-right: 1px solid var(--brand-100);
    margin: -7px 12px -7px -10px;
    padding: 9px 14px;
    font-weight: 600;
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.invalid-feedback { color: var(--danger); font-size: 12.5px; margin-top: 4px; }

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2362789a' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.input-group-text {
    background: var(--brand-50);
    border: 1px solid var(--line-strong);
    color: var(--brand-600);
    border-radius: var(--radius-md);
    font-size: 14px;
}

.input-group-text.bg-white { background: #fff !important; }

.form-check-input {
    border-color: #b5c8dd;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--brand-600);
    border-color: var(--brand-600);
}

.form-check-input:focus { box-shadow: var(--ring); border-color: var(--brand-400); }
.form-check-label { cursor: pointer; }
.form-text { color: var(--text-secondary); }

/* Filter / search bars */
.search-filter-bar,
.filter-section .card-body {
    background: linear-gradient(135deg, #fff 0%, var(--surface-2) 100%);
}

.search-filter-bar {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 18px;
}

.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-box { position: relative; flex: 1; min-width: 220px; }
.search-box input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    background: #fff;
}
.search-box input:focus { border-color: var(--brand-400); box-shadow: var(--ring); outline: none; }
.search-box i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); }

.filter-select {
    padding: 10px 36px 10px 14px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2362789a' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 12px center;
    appearance: none;
    cursor: pointer;
}

/* =====================================================
   12. Buttons
   ===================================================== */
.btn {
    --bs-btn-font-family: var(--font-ui);
    --bs-btn-font-size: 14px;
    --bs-btn-font-weight: 600;
    --bs-btn-padding-x: 16px;
    --bs-btn-padding-y: 8px;
    --bs-btn-border-radius: var(--radius-md);
    --bs-btn-focus-box-shadow: var(--ring);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    line-height: 1.5;
    white-space: nowrap;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.btn:active { transform: translateY(1px); }

.btn-sm {
    --bs-btn-padding-x: 11px;
    --bs-btn-padding-y: 5px;
    --bs-btn-font-size: 13px;
    --bs-btn-border-radius: var(--radius-sm);
}

.btn-lg {
    --bs-btn-padding-x: 24px;
    --bs-btn-padding-y: 12px;
    --bs-btn-font-size: 15.5px;
    --bs-btn-border-radius: var(--radius-lg);
}

.btn-primary {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--brand-600);
    --bs-btn-border-color: var(--brand-600);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--brand-700);
    --bs-btn-hover-border-color: var(--brand-700);
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--brand-800);
    --bs-btn-active-border-color: var(--brand-800);
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: var(--brand-400);
    --bs-btn-disabled-border-color: var(--brand-400);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0));
    box-shadow: 0 4px 12px rgba(11, 100, 208, 0.22);
}

.btn-primary:hover { box-shadow: 0 6px 16px rgba(11, 100, 208, 0.3); }

.btn-secondary {
    --bs-btn-color: #34506f;
    --bs-btn-bg: #eaf1f8;
    --bs-btn-border-color: #d9e5f1;
    --bs-btn-hover-color: #1c3350;
    --bs-btn-hover-bg: #dde8f3;
    --bs-btn-hover-border-color: #cbdaea;
    --bs-btn-active-color: #1c3350;
    --bs-btn-active-bg: #d2e1ef;
    --bs-btn-active-border-color: #c2d5e8;
    --bs-btn-disabled-color: #7d91aa;
    --bs-btn-disabled-bg: #eef3f8;
    --bs-btn-disabled-border-color: #e1e9f2;
}

.btn-success {
    --bs-btn-color: #fff;
    --bs-btn-bg: #16a34a;
    --bs-btn-border-color: #16a34a;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #15803d;
    --bs-btn-hover-border-color: #15803d;
    --bs-btn-active-bg: #166534;
    --bs-btn-active-border-color: #166534;
    --bs-btn-disabled-bg: #6cc58e;
    --bs-btn-disabled-border-color: #6cc58e;
    box-shadow: 0 4px 12px rgba(22, 163, 74, 0.18);
}

.btn-danger {
    --bs-btn-color: #fff;
    --bs-btn-bg: #dc2626;
    --bs-btn-border-color: #dc2626;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #b91c1c;
    --bs-btn-hover-border-color: #b91c1c;
    --bs-btn-active-bg: #991b1b;
    --bs-btn-active-border-color: #991b1b;
    --bs-btn-disabled-bg: #ec8a8a;
    --bs-btn-disabled-border-color: #ec8a8a;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.16);
}

.btn-warning {
    --bs-btn-color: #fff;
    --bs-btn-bg: #e38a0c;
    --bs-btn-border-color: #e38a0c;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #c67508;
    --bs-btn-hover-border-color: #c67508;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #a86306;
    --bs-btn-active-border-color: #a86306;
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: #f0bb6c;
    --bs-btn-disabled-border-color: #f0bb6c;
    box-shadow: 0 4px 12px rgba(227, 138, 12, 0.16);
}

.btn-info {
    --bs-btn-color: #fff;
    --bs-btn-bg: #0891b2;
    --bs-btn-border-color: #0891b2;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #0e7490;
    --bs-btn-hover-border-color: #0e7490;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #155e75;
    --bs-btn-active-border-color: #155e75;
    --bs-btn-disabled-color: #fff;
    --bs-btn-disabled-bg: #6cc3d8;
    --bs-btn-disabled-border-color: #6cc3d8;
    box-shadow: 0 4px 12px rgba(8, 145, 178, 0.16);
}

.btn-light {
    --bs-btn-color: var(--ink);
    --bs-btn-bg: #fff;
    --bs-btn-border-color: var(--line-strong);
    --bs-btn-hover-color: var(--brand-800);
    --bs-btn-hover-bg: var(--brand-50);
    --bs-btn-hover-border-color: var(--brand-200);
    --bs-btn-active-bg: var(--brand-100);
    --bs-btn-active-border-color: var(--brand-200);
}

.btn-dark {
    --bs-btn-bg: var(--ink-strong);
    --bs-btn-border-color: var(--ink-strong);
    --bs-btn-hover-bg: #1c3350;
    --bs-btn-hover-border-color: #1c3350;
}

.btn-outline-primary {
    --bs-btn-color: var(--brand-700);
    --bs-btn-border-color: var(--brand-300);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--brand-600);
    --bs-btn-hover-border-color: var(--brand-600);
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: var(--brand-700);
    --bs-btn-active-border-color: var(--brand-700);
    --bs-btn-disabled-color: var(--brand-400);
    --bs-btn-disabled-border-color: var(--brand-200);
    background-color: #fff;
}

.btn-outline-secondary {
    --bs-btn-color: #4a6282;
    --bs-btn-border-color: var(--line-strong);
    --bs-btn-hover-color: var(--ink-strong);
    --bs-btn-hover-bg: #eef3f9;
    --bs-btn-hover-border-color: #c6d6e7;
    --bs-btn-active-color: var(--ink-strong);
    --bs-btn-active-bg: #e2eaf3;
    --bs-btn-active-border-color: #c6d6e7;
    background-color: #fff;
}

.btn-outline-success { --bs-btn-color: #15803d; --bs-btn-border-color: #a7dfbd; --bs-btn-hover-bg: #16a34a; --bs-btn-hover-border-color: #16a34a; --bs-btn-hover-color: #fff; --bs-btn-active-bg: #15803d; --bs-btn-active-border-color: #15803d; background-color: #fff; }
.btn-outline-danger  { --bs-btn-color: #c81e1e; --bs-btn-border-color: #f3b4b4; --bs-btn-hover-bg: #dc2626; --bs-btn-hover-border-color: #dc2626; --bs-btn-hover-color: #fff; --bs-btn-active-bg: #b91c1c; --bs-btn-active-border-color: #b91c1c; background-color: #fff; }
.btn-outline-warning { --bs-btn-color: #b45309; --bs-btn-border-color: #f3cf96; --bs-btn-hover-bg: #e38a0c; --bs-btn-hover-border-color: #e38a0c; --bs-btn-hover-color: #fff; --bs-btn-active-bg: #c67508; --bs-btn-active-border-color: #c67508; --bs-btn-active-color: #fff; background-color: #fff; }
.btn-outline-info    { --bs-btn-color: #0e7490; --bs-btn-border-color: #9fd8e6; --bs-btn-hover-bg: #0891b2; --bs-btn-hover-border-color: #0891b2; --bs-btn-hover-color: #fff; --bs-btn-active-bg: #0e7490; --bs-btn-active-border-color: #0e7490; --bs-btn-active-color: #fff; background-color: #fff; }
.btn-outline-dark    { --bs-btn-color: var(--ink); --bs-btn-border-color: #b9c9db; --bs-btn-hover-bg: var(--ink-strong); --bs-btn-hover-border-color: var(--ink-strong); background-color: #fff; }
.btn-outline-light   { --bs-btn-color: #fff; --bs-btn-border-color: rgba(255,255,255,.55); --bs-btn-hover-bg: rgba(255,255,255,.18); --bs-btn-hover-color: #fff; --bs-btn-hover-border-color: #fff; }

.btn-link { --bs-btn-color: var(--brand-600); --bs-btn-hover-color: var(--brand-800); }

/* Custom button variants (legacy class names) */
.btn-accent {
    --bs-btn-color: var(--brand-800);
    --bs-btn-bg: var(--brand-100);
    --bs-btn-border-color: var(--brand-200);
    --bs-btn-hover-color: var(--brand-900);
    --bs-btn-hover-bg: var(--brand-200);
    --bs-btn-hover-border-color: var(--brand-300);
    --bs-btn-active-color: var(--brand-900);
    --bs-btn-active-bg: var(--brand-200);
    --bs-btn-active-border-color: var(--brand-300);
}

.btn-outline {
    --bs-btn-color: var(--brand-700);
    --bs-btn-bg: #fff;
    --bs-btn-border-color: var(--line-strong);
    --bs-btn-hover-color: var(--brand-800);
    --bs-btn-hover-bg: var(--brand-50);
    --bs-btn-hover-border-color: var(--brand-200);
    --bs-btn-active-color: var(--brand-800);
    --bs-btn-active-bg: var(--brand-100);
    --bs-btn-active-border-color: var(--brand-200);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0 !important;
}

.btn-icon.btn-sm { width: 30px; height: 30px; }

.btn-close { border-radius: 8px; opacity: 0.55; }
.btn-close:hover { opacity: 0.9; }
.btn-close:focus { box-shadow: var(--ring); }

.btn-group { gap: 0; }
.btn-group > .btn { box-shadow: none; }

/* =====================================================
   13. Nav Tabs & Pills
   ===================================================== */
.nav-tabs {
    --bs-nav-tabs-border-color: var(--line);
    border-bottom: 1px solid var(--line);
    gap: 4px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
}

.nav-tabs::-webkit-scrollbar { display: none; }

.nav-tabs .nav-item { flex-shrink: 0; }

.nav-tabs .nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
    border: 0;
    border-bottom: 3px solid transparent;
    border-radius: 10px 10px 0 0;
    padding: 10px 16px;
    margin-bottom: -1px;
    white-space: nowrap;
    background: transparent;
    transition: var(--transition-fast);
}

.nav-tabs .nav-link:hover {
    color: var(--brand-700);
    background: var(--brand-50);
    border-color: transparent transparent var(--brand-200) transparent;
}

.nav-tabs .nav-link.active,
.nav-tabs .nav-item.show .nav-link {
    color: var(--brand-700);
    background: linear-gradient(180deg, rgba(227, 240, 253, 0) 0%, var(--brand-50) 100%);
    border-color: transparent transparent var(--brand-600) transparent;
    font-weight: 700;
}

.nav-pills .nav-link {
    border-radius: 10px;
    color: var(--text-secondary);
    font-weight: 600;
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
    background: var(--brand-600);
    color: #fff;
}

.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--line);
    margin-bottom: 24px;
    overflow-x: auto;
}
.tab-nav a {
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
    white-space: nowrap;
}
.tab-nav a:hover { color: var(--brand-700); }
.tab-nav a.active { color: var(--brand-700); border-bottom-color: var(--brand-600); }

/* =====================================================
   14. Modals
   ===================================================== */
.modal { --bs-modal-border-radius: var(--radius-xl); }
.modal-backdrop { --bs-backdrop-bg: #0f2744; --bs-backdrop-opacity: 0.42; }

.modal-content {
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    padding: 16px 22px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(135deg, #fff 0%, var(--brand-50) 100%);
    color: var(--ink-strong);
}

.modal-header .modal-title {
    font-size: 16.5px;
    font-weight: 700;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 4px;
}

.modal-header:not([style]):not(.text-white) .modal-title > i { color: var(--brand-600); }

.modal-header.bg-success { background: linear-gradient(135deg, #22b07d 0%, #15803d 100%) !important; }
.modal-header.bg-danger  { background: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%) !important; }
.modal-header.bg-info    { background: linear-gradient(135deg, #22a6c8 0%, #0e7490 100%) !important; }
.modal-header.bg-warning { background: linear-gradient(135deg, #fde3ae 0%, #f8c86a 100%) !important; color: #5c3a06; }

.modal-body { padding: 22px; }

.modal-footer {
    padding: 14px 22px;
    border-top: 1px solid var(--line);
    background: var(--surface-2);
    gap: 8px;
}

.modal-footer > * { margin: 0; }

/* Legacy custom overlay modal (kept for compatibility) */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 39, 68, 0.45);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-overlay .modal-dialog {
    background: #fff;
    border-radius: var(--radius-xl);
    width: 92%;
    max-width: 600px;
    max-height: 86vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}
.modal-close {
    width: 32px; height: 32px;
    border-radius: 10px; border: 0;
    background: var(--brand-50);
    color: var(--text-secondary);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
}
.modal-close:hover { background: var(--danger); color: #fff; }

/* =====================================================
   15. Alerts, Toasts
   ===================================================== */
.alert {
    --bs-alert-border-radius: var(--radius-md);
    padding: 13px 18px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    border-left-width: 4px;
    animation: slideIn 0.3s ease;
}

.alert > i:first-child { font-size: 17px; flex-shrink: 0; }
.alert-dismissible { padding-right: 48px; }
.alert-dismissible .btn-close { padding: 16px; }

.alert-success { background: var(--success-soft); color: #166534; border-color: #c5ead3; border-left-color: #16a34a; }
.alert-danger  { background: var(--danger-soft);  color: #991b1b; border-color: #f7cfcf; border-left-color: #dc2626; }
.alert-warning { background: var(--warning-soft); color: #92400e; border-color: #f6dfb6; border-left-color: #e38a0c; }
.alert-info    { background: var(--info-soft);    color: #155e75; border-color: #c3e6ef; border-left-color: #0891b2; }
.alert-primary { background: var(--brand-50);     color: var(--brand-800); border-color: var(--brand-200); border-left-color: var(--brand-600); }
.alert-secondary { background: #f1f5f9; color: #334155; border-color: #e2e8f0; border-left-color: #94a3b8; }
.alert-light { background: var(--surface-2); color: var(--ink); border-color: var(--line); }

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
}
.alert-close:hover { opacity: 1; }

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* SweetAlert2 harmonisation */
.swal2-popup {
    font-family: var(--font-ui) !important;
    border-radius: 20px !important;
    padding: 1.6em 1.4em 1.4em !important;
}
.swal2-title { color: var(--ink-strong) !important; font-size: 1.35em !important; }
.swal2-html-container { color: var(--text-secondary) !important; }
.swal2-styled { border-radius: 10px !important; font-weight: 600 !important; padding: .6em 1.4em !important; }
.swal2-styled:focus { box-shadow: var(--ring) !important; }

/* =====================================================
   16. Badges
   ===================================================== */
.badge {
    --bs-badge-font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.5;
    white-space: nowrap;
    letter-spacing: 0;
}

.badge.bg-primary   { background-color: var(--brand-100) !important; color: var(--brand-800) !important; }
.badge.bg-success   { background-color: #dcf3e5 !important; color: #166534 !important; }
.badge.bg-danger    { background-color: #fde2e2 !important; color: #991b1b !important; }
.badge.bg-warning   { background-color: #fdefd3 !important; color: #92400e !important; }
.badge.bg-info      { background-color: #dcf1f7 !important; color: #155e75 !important; }
.badge.bg-secondary { background-color: #e8eef5 !important; color: #3f5673 !important; }
.badge.bg-light     { background-color: var(--brand-50) !important; color: var(--brand-900) !important; border: 1px solid var(--brand-100); }
.badge.bg-dark      { background-color: var(--ink-strong) !important; color: #fff !important; }

.badge-studying, .badge-paid, .badge-success { background: #dcf3e5; color: #166534; }
.badge-graduated, .badge-info { background: #dcf1f7; color: #155e75; }
.badge-suspended, .badge-partial, .badge-warning { background: #fdefd3; color: #92400e; }
.badge-withdrawn, .badge-unpaid, .badge-danger { background: #fde2e2; color: #991b1b; }
.badge-primary { background: var(--brand-100); color: var(--brand-800); }

/* =====================================================
   17. Pagination
   ===================================================== */
.pagination {
    --bs-pagination-color: var(--ink);
    --bs-pagination-border-color: var(--line);
    --bs-pagination-hover-color: var(--brand-700);
    --bs-pagination-hover-bg: var(--brand-50);
    --bs-pagination-hover-border-color: var(--brand-200);
    --bs-pagination-focus-box-shadow: var(--ring);
    --bs-pagination-active-bg: var(--brand-600);
    --bs-pagination-active-border-color: var(--brand-600);
    --bs-pagination-disabled-color: #a7b6c8;
    --bs-pagination-font-size: 13.5px;
    gap: 4px;
    flex-wrap: wrap;
}

.pagination .page-link {
    border-radius: 9px !important;
    min-width: 36px;
    text-align: center;
    font-weight: 500;
}

.pagination .page-item.active .page-link { box-shadow: 0 4px 10px rgba(11, 100, 208, 0.25); }

.pagination-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.pagination-wrap a,
.pagination-wrap span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: 9px;
    font-size: 13px;
    color: var(--text-secondary);
    border: 1px solid var(--line);
    background: #fff;
}
.pagination-wrap a:hover { background: var(--brand-50); color: var(--brand-700); }
.pagination-wrap .active { background: var(--brand-600); color: #fff; border-color: var(--brand-600); }
.pagination-wrap .disabled { opacity: 0.45; cursor: not-allowed; }

/* =====================================================
   18. List group, Dropdown, Progress, Misc components
   ===================================================== */
.list-group {
    --bs-list-group-border-color: var(--line);
    --bs-list-group-active-bg: var(--brand-600);
    --bs-list-group-active-border-color: var(--brand-600);
    --bs-list-group-action-hover-bg: var(--brand-50);
}

.dropdown-menu {
    --bs-dropdown-border-color: var(--line);
    --bs-dropdown-border-radius: var(--radius-md);
    --bs-dropdown-link-hover-bg: var(--brand-50);
    --bs-dropdown-link-active-bg: var(--brand-600);
    box-shadow: var(--shadow-lg);
    padding: 6px;
}

.dropdown-item { border-radius: 8px; padding: 7px 12px; }

.progress {
    --bs-progress-bg: #e8eff7;
    --bs-progress-bar-bg: var(--brand-600);
    --bs-progress-border-radius: 999px;
}

.progress-bar-custom {
    width: 100%;
    height: 8px;
    background: #e8eff7;
    border-radius: 999px;
    overflow: hidden;
}
.progress-bar-custom .fill { height: 100%; border-radius: 999px; transition: width 0.6s ease; }
.progress-bar-custom .fill.green { background: var(--success); }
.progress-bar-custom .fill.gold { background: var(--accent); }
.progress-bar-custom .fill.red { background: var(--danger); }

.border-primary { border-color: var(--brand-300) !important; }
.bg-light { background-color: var(--surface-2) !important; }
.bg-primary-soft { background-color: var(--brand-50) !important; }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow { box-shadow: var(--shadow-md) !important; }
.radius-md { border-radius: var(--radius-lg) !important; }

/* Loading overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(243, 247, 252, 0.82);
    backdrop-filter: blur(4px);
    z-index: 5000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.loading-overlay.active { opacity: 1; visibility: visible; }

.spinner {
    width: 46px;
    height: 46px;
    border: 4px solid var(--brand-100);
    border-top-color: var(--brand-600);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 14px;
}

.loading-text { color: var(--brand-800); font-size: 14px; font-weight: 600; }

/* Utility (legacy) */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-primary { color: var(--brand-600) !important; }
.text-accent { color: var(--accent) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: #d97706 !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-secondary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-dark { color: var(--ink-strong) !important; }
.link-primary { color: var(--brand-600) !important; }

.mr-1 { margin-right: 8px; }
.ml-1 { margin-left: 8px; }
.mr-2 { margin-right: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.fs-sm { font-size: 12px; }
.fs-lg { font-size: 16px; }
.text-xs { font-size: 12px; }
.font-weight-bold { font-weight: 700 !important; }
.no-gutters { --bs-gutter-x: 0; }
.fw-medium { font-weight: 500 !important; }
.num, .tabular { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

/* Chart container */
.chart-container { position: relative; width: 100%; padding: 8px; }
.chart-box { position: relative; width: 100%; height: 300px; }
.chart-box canvas { position: absolute; inset: 0; }

/* Photos */
.student-photo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px var(--line);
}

.student-photo-lg {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    border: 3px solid #fff;
    box-shadow: 0 0 0 1px var(--line), var(--shadow-sm);
}

.photo-upload {
    position: relative;
    width: 120px;
    height: 120px;
    border-radius: var(--radius-lg);
    border: 2px dashed var(--brand-200);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    background: var(--brand-50);
}
.photo-upload:hover { border-color: var(--brand-400); }
.photo-upload input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.photo-upload i { font-size: 28px; color: var(--brand-400); }
.photo-upload img { width: 100%; height: 100%; object-fit: cover; }

/* Empty state */
.empty-state { text-align: center; padding: 44px 24px; color: var(--text-secondary); }
.empty-state i { font-size: 42px; margin-bottom: 14px; color: var(--brand-300); }
.empty-state h4 { color: var(--ink); font-size: 16px; margin-bottom: 6px; }
.empty-state p { font-size: 13.5px; margin-bottom: 14px; }

.empty-row {
    text-align: center;
    color: var(--text-secondary);
    padding: 36px 16px !important;
}
.empty-row i { display: block; font-size: 30px; color: var(--brand-300); margin-bottom: 8px; }

.action-col { display: flex; gap: 6px; align-items: center; }
.currency { font-weight: 600; font-variant-numeric: tabular-nums; }
.currency-lak::after { content: ' ₭'; font-weight: 400; opacity: 0.7; }

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.info-item { display: flex; flex-direction: column; gap: 3px; }
.info-item .info-label { font-size: 12.5px; color: var(--text-secondary); font-weight: 500; }
.info-item .info-value { font-size: 14.5px; font-weight: 600; color: var(--ink-strong); }

/* Quick links (dashboard) */
.quick-links {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 22px;
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 10px;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-xs);
    text-align: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    transition: var(--transition);
}

.quick-link i {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--brand-50);
    color: var(--brand-600);
    font-size: 17px;
    border: 1px solid var(--brand-100);
    transition: var(--transition);
}

.quick-link:hover {
    border-color: var(--brand-200);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--brand-800);
}

.quick-link:hover i { background: var(--brand-600); color: #fff; border-color: var(--brand-600); }

/* Mini list rows (dashboard) */
.mini-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--brand-50);
    color: var(--brand-700);
    border: 1px solid var(--brand-100);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

/* Tooltip (legacy) */
.tooltip-custom { position: relative; }
.tooltip-custom::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: var(--ink-strong);
    color: #fff;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
    z-index: 100;
}
.tooltip-custom:hover::after { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* Skeleton */
.skeleton {
    background: linear-gradient(90deg, #edf3f9 25%, #e0e9f3 50%, #edf3f9 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* Number inputs: no spinners */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }

/* =====================================================
   19. Animations
   ===================================================== */
.animate-in { animation: fadeInUp 0.45s ease both; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-8px); } 50% { transform: translateX(8px); } 75% { transform: translateX(-4px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* =====================================================
   20. Official Document (A4) — screen preview
   ===================================================== */
.doc-sheet {
    font-family: var(--font-doc);
    color: #111;
    background: #fff;
}

.doc-header { margin-bottom: 18px; }

.doc-national {
    text-align: center;
    font-weight: 700;
    font-size: 15px;
    line-height: 1.6;
    color: #111;
}

.doc-national .doc-motto { display: block; font-weight: 600; font-size: 14px; }

.doc-ornament {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 4px auto 0;
    width: 220px;
    color: #111;
    font-size: 8px;
}

.doc-ornament::before,
.doc-ornament::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #111;
}

.doc-emblem { width: 58px; height: auto; display: block; margin: 0 auto 6px; }

.doc-meta {
    padding: 0 4px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-top: 14px;
    font-size: 13.5px;
    line-height: 1.7;
}

.doc-org { display: flex; align-items: center; gap: 10px; }
.doc-org img { width: 54px; height: 54px; object-fit: contain; }
.doc-org-text { text-align: center; }
.doc-org-text strong { font-weight: 700; }
.doc-ref { text-align: right; }

.doc-title {
    text-align: center;
    font-family: var(--font-doc);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.6;
    margin: 18px 0 4px;
    color: #111 !important;
}

.doc-subtitle {
    text-align: center;
    font-size: 13.5px;
    margin-bottom: 14px;
    color: #333;
}

.doc-table { width: 100%; border-collapse: collapse; font-family: var(--font-doc); }
.doc-table th,
.doc-table td {
    border: 1px solid #c3d3e4 !important;
    padding: 5px 7px !important;
    font-size: 12.5px;
    vertical-align: middle;
    color: #111;
}
.doc-table thead th {
    background: #e8f1fb !important;
    color: #0f2744 !important;
    text-align: center;
    font-weight: 700;
}

.doc-signatures {
    display: grid;
    grid-template-columns: repeat(var(--sig-cols, 3), minmax(0, 1fr));
    gap: 16px;
    margin-top: 34px;
    text-align: center;
    font-size: 13.5px;
    page-break-inside: avoid;
    break-inside: avoid;
}

.doc-signatures .sig-role { font-weight: 700; }
.doc-signatures .sig-space { height: 70px; }
.doc-signatures .sig-name { font-weight: 600; }

.doc-date-line { text-align: right; margin-top: 20px; font-size: 13.5px; }

.doc-footer-note {
    margin-top: 16px;
    font-size: 11.5px;
    color: #555;
    border-top: 1px dashed #bbb;
    padding-top: 6px;
}

/* On-screen "paper" look for reports */
.report-paper {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 28px 30px;
}

.table-report { font-family: var(--font-doc); }

/* =====================================================
   21. Responsive
   ===================================================== */
@media screen and (max-width: 1399.98px) {
    .quick-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media screen and (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media screen and (max-width: 992px) {
    .sidebar {
        transform: translateX(-102%);
        box-shadow: none;
        width: min(86vw, 300px);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .hamburger-btn { display: inline-flex; }
    .sidebar-toggle-desktop { display: none !important; }

    .top-header { padding: 0 18px; }
    .content-area { padding: 20px 18px 28px; }
    .app-footer { padding: 14px 18px 18px; }

    .page-header { flex-direction: column; align-items: flex-start; }
    .charts-grid { grid-template-columns: 1fr; }
}

@media screen and (max-width: 768px) {
    body { font-size: 14px; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }

    .content-area { padding: 16px 14px 24px; }
    .top-header { padding: 0 14px; height: 60px; }
    .header-chip { display: none; }
    .user-info { display: none; }
    .user-dropdown { padding: 3px; }

    .card-body { padding: 16px; }
    .card-header { padding: 13px 16px; }

    .content-header,
    .page-head { padding: 14px 16px 14px 18px; border-radius: var(--radius-lg); }

    .content-header h1,
    .content-header .h3,
    .page-head h1, .page-head h2, .page-head h3, .page-head h4 { font-size: 1.1rem; }

    .content-header h1 > i,
    .content-header .h3 > i,
    .page-head h1 > i, .page-head h2 > i, .page-head h3 > i, .page-head h4 > i { width: 34px; height: 34px; font-size: 15px; }

    .welcome-hero { padding: 20px; border-radius: 18px; }
    .welcome-hero h2 { font-size: 1.3rem; }

    .filter-bar { flex-direction: column; align-items: stretch; }
    .search-box { width: 100%; }

    .info-grid { grid-template-columns: 1fr; }

    .modal-body { padding: 16px; }
    .modal-header, .modal-footer { padding: 12px 16px; }

    .stat-card { padding: 14px 15px; }
    .stat-card .stat-icon { width: 38px; height: 38px; font-size: 16px; margin-bottom: 10px; border-radius: 11px; }
    .stat-card .stat-value { font-size: 21px; }
    .stat-card .stat-label { font-size: 12.5px; }

    .table > :not(caption) > * > * { padding: 9px 11px; }
    .table thead th { font-size: 13px; }
    .table tbody td { font-size: 13.5px; }

    .dataTables_wrapper .dataTables_filter,
    .dataTables_wrapper .dataTables_length { width: 100%; }
    .dataTables_wrapper .dataTables_filter label { width: 100%; }
    .dataTables_wrapper .dataTables_filter input { flex: 1; width: 100%; }

    .report-paper { padding: 16px; }
    .doc-meta { flex-direction: column; align-items: stretch; }
    .doc-ref { text-align: left; }
}

@media screen and (max-width: 576px) {
    .quick-links { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
    .quick-link { padding: 12px 6px; font-size: 12px; }
    .quick-link i { width: 36px; height: 36px; font-size: 15px; }

    .breadcrumb-nav a,
    .breadcrumb-nav .separator { display: none; }
    .breadcrumb-nav .current { font-size: 14px; max-width: 52vw; }

    .modal-dialog { margin: 10px; }
    .nav-tabs .nav-link { padding: 9px 12px; font-size: 13.5px; }
    .btn { --bs-btn-padding-x: 13px; }
    .stat-card .stat-value { font-size: 19px; }
}

@media screen and (max-width: 380px) {
    .stats-grid { grid-template-columns: 1fr; }
    .quick-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* =====================================================
   22. PRINT — formal A4 documents
   ===================================================== */
@media print {
    @page {
        size: A4;
        margin: 12mm 12mm 14mm 12mm;
    }

    html, body {
        background: #fff !important;
        background-image: none !important;
        color: #000 !important;
        font-size: 11.5pt;
        font-family: var(--font-doc);
    }

    * {
        box-shadow: none !important;
        text-shadow: none !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .sidebar,
    .top-header,
    .app-footer,
    .hamburger-btn,
    .sidebar-overlay,
    .btn,
    .no-print,
    .filter-bar,
    .filter-section,
    .nav-tabs,
    .search-filter-bar,
    .pagination,
    .pagination-wrap,
    .loading-overlay,
    .alert-dismissible,
    .dataTables_filter,
    .dataTables_length,
    .dataTables_info,
    .dataTables_paginate,
    .modal-backdrop,
    .swal2-container {
        display: none !important;
    }

    .app-wrapper { display: block !important; }

    .main-content {
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
    }

    .content-area {
        padding: 0 !important;
        max-width: none !important;
        min-height: 0 !important;
    }

    .card {
        border: none !important;
        border-radius: 0 !important;
        background: transparent !important;
        overflow: visible !important;
    }

    .card-header,
    .card-body { padding-left: 0 !important; padding-right: 0 !important; }

    .table-responsive { overflow: visible !important; }

    .report-paper { border: 0 !important; padding: 0 !important; }

    table { page-break-inside: auto; }
    thead { display: table-header-group; }
    tfoot { display: table-footer-group; }
    tr, img { page-break-inside: avoid; break-inside: avoid; }

    .doc-table th, .doc-table td,
    .table-report th, .table-report td { border: 0.6pt solid #000 !important; color: #000 !important; }
    .doc-table thead th,
    .table-report thead th { background: #e8f1fb !important; }

    .doc-signatures { page-break-inside: avoid; margin-top: 22px; }
    .doc-signatures .sig-space { height: 60px; }
    .d-print-none { display: none !important; }

    a[href]::after { content: none !important; }

    /* Receipt (thermal / half-page legacy) */
    .receipt-container { width: 100%; max-width: 80mm; margin: 0 auto; padding: 10px; border: 1px solid #000; }
    .receipt-header { text-align: center; border-bottom: 1px dashed #000; padding-bottom: 10px; margin-bottom: 10px; }
    .receipt-header h2 { font-size: 16px; margin-bottom: 4px; }
    .receipt-header p { font-size: 11px; margin: 2px 0; }
    .receipt-body table { width: 100%; border-collapse: collapse; }
    .receipt-body td { padding: 4px 0; font-size: 12px; vertical-align: top; }
    .receipt-body .label { font-weight: bold; width: 40%; }
    .receipt-total { border-top: 1px dashed #000; padding-top: 8px; margin-top: 8px; font-weight: bold; font-size: 14px; text-align: right; }
    .receipt-footer { text-align: center; border-top: 1px dashed #000; padding-top: 10px; margin-top: 15px; font-size: 11px; }
    .receipt-signature { margin-top: 40px; display: flex; justify-content: space-between; }
    .receipt-signature div { text-align: center; width: 45%; }
    .receipt-signature .line { border-top: 1px solid #000; margin-top: 40px; padding-top: 4px; }
}

/* =====================================================
   23. Page-level refinements
   ===================================================== */
@media screen and (min-width: 992px) {
    /* Action buttons sit beside the page title on wide screens */
    .content-header > .d-flex > .w-100,
    .page-head > .d-flex.w-100 {
        width: auto !important;
        flex: 0 1 auto;
    }
}

/* DataTables striping in brand tint */
table.dataTable.table-striped > tbody > tr.odd > * {
    box-shadow: inset 0 0 0 9999px rgba(11, 100, 208, 0.03) !important;
}
table.dataTable.table-hover > tbody > tr:hover > * {
    box-shadow: inset 0 0 0 9999px rgba(11, 100, 208, 0.06) !important;
}
table.dataTable thead > tr > th.sorting::before,
table.dataTable thead > tr > th.sorting::after { color: var(--brand-400); }

/* Dashboard: 8 quick links + announcements strip */
.quick-links { grid-template-columns: repeat(8, minmax(0, 1fr)); }
@media screen and (max-width: 1399.98px) { .quick-links { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media screen and (max-width: 380px) { .quick-links { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.dash-ann-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}
.dash-ann {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 14px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: linear-gradient(135deg, #fff 0%, var(--surface-2) 100%);
    transition: var(--transition);
}
.dash-ann:hover { border-color: var(--brand-200); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.dash-ann strong { color: var(--ink-strong); line-height: 1.45; }
.dash-ann small { color: var(--text-secondary); }

/* =====================================================
   24. Vivid theme layer (ສີເຂັ້ມຂຶ້ນ — ຍັງເປັນໂທນຟ້າສະຫວ່າງ)
   ===================================================== */
body {
    background-image:
        radial-gradient(1100px 420px at 100% -10%, rgba(61, 149, 247, 0.20), transparent 60%),
        radial-gradient(900px 380px at -10% 0%, rgba(171, 209, 255, 0.45), transparent 60%);
}

/* ---- Sidebar: bright FBA blue ---- */
.sidebar {
    background: linear-gradient(180deg, #1a7ceb 0%, #0b64d0 55%, #0a55b6 100%);
    border-right: 0;
    box-shadow: 4px 0 24px rgba(11, 100, 208, 0.25);
}
.sidebar-logo {
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.25);
}
.sidebar-logo::after { border-color: rgba(255, 255, 255, 0.12); }
.sidebar-logo h3 { color: #fff; }
.sidebar-logo p { color: rgba(255, 255, 255, 0.82); }
.sidebar-logo .logo-img,
.sidebar-logo .logo-icon { box-shadow: 0 6px 16px rgba(4, 35, 80, 0.3); }
.sidebar-nav .nav-label { color: rgba(255, 255, 255, 0.66); }
.sidebar-nav .nav-link { color: rgba(255, 255, 255, 0.92); }
.sidebar-nav .nav-link i {
    background: rgba(255, 255, 255, 0.13);
    border-color: rgba(255, 255, 255, 0.18);
    color: #fff;
}
.sidebar-nav .nav-link:hover { background: rgba(255, 255, 255, 0.14); color: #fff; }
.sidebar-nav .nav-link:hover i { background: rgba(255, 255, 255, 0.22); border-color: rgba(255, 255, 255, 0.3); }
.sidebar-nav .nav-link.active {
    background: #fff;
    color: var(--brand-700);
    box-shadow: 0 8px 20px rgba(4, 35, 80, 0.28);
}
.sidebar-nav .nav-link.active i {
    background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
    border-color: transparent;
    color: #fff;
}
.sidebar-divider { background: rgba(255, 255, 255, 0.2); }
.sidebar-nav .nav-link.logout-link { color: #ffd9d9; }
.sidebar-nav .nav-link.logout-link i { background: rgba(255, 90, 90, 0.22); border-color: rgba(255, 150, 150, 0.35); color: #fff; }
.sidebar-nav .nav-link.logout-link:hover { background: rgba(255, 90, 90, 0.22); color: #fff; }
.sidebar-footer { border-top-color: rgba(255, 255, 255, 0.18); color: rgba(255, 255, 255, 0.7); }
.sidebar-scroll::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.3); }
@media (min-width: 993px) {
    body.sidebar-mini .sidebar-nav .nav-item + .nav-label { background: rgba(255, 255, 255, 0.2); }
}

/* ---- Top header ---- */
.top-header {
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 2px 14px rgba(11, 100, 208, 0.08);
}
.hamburger-btn, .header-icon-btn { background: var(--brand-50); border-color: var(--brand-200); color: var(--brand-700); }
.header-chip { background: var(--brand-100); border-color: var(--brand-200); color: var(--brand-900); }
.breadcrumb-nav a { background: var(--brand-100); color: var(--brand-700); }

/* ---- Page banners ---- */
.content-header,
.page-head {
    background:
        radial-gradient(420px 160px at 100% 0%, rgba(255, 255, 255, 0.55), transparent 70%),
        linear-gradient(120deg, #d6e9ff 0%, #b8d8ff 60%, #9dc8ff 100%);
    border: 1px solid #a9cdf7;
    box-shadow: 0 8px 22px rgba(11, 100, 208, 0.12);
}
.content-header::before,
.page-head::before { width: 5px; background: linear-gradient(180deg, var(--brand-500), var(--brand-800)); }
.content-header h1, .content-header .h3, .content-header h4,
.page-head h1, .page-head h2, .page-head h3, .page-head h4 { color: var(--brand-900) !important; }
.content-header h1 > i, .content-header .h3 > i, .content-header h4 > i,
.page-head h1 > i, .page-head h2 > i, .page-head h3 > i, .page-head h4 > i {
    background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
    border-color: transparent;
    color: #fff !important;
    box-shadow: 0 6px 14px rgba(11, 100, 208, 0.3);
}
.content-header .btn-secondary, .page-head .btn-secondary,
.content-header .btn-accent, .page-head .btn-accent {
    --bs-btn-bg: #fff;
    --bs-btn-border-color: #fff;
    --bs-btn-color: var(--brand-800);
    --bs-btn-hover-bg: var(--brand-50);
    --bs-btn-hover-border-color: #fff;
    --bs-btn-hover-color: var(--brand-900);
}

/* ---- Welcome hero (dashboard) ---- */
.welcome-hero {
    color: #fff;
    background:
        radial-gradient(380px 220px at 92% 8%, rgba(255, 255, 255, 0.28), transparent 70%),
        linear-gradient(120deg, #3d95f7 0%, #1a7ceb 45%, #0a55b6 100%);
    border: 0;
    box-shadow: 0 16px 36px rgba(11, 100, 208, 0.32);
}
.welcome-hero::before { border-color: rgba(255, 255, 255, 0.16); }
.welcome-hero::after { background: rgba(255, 255, 255, 0.12); }
.welcome-hero h2 { color: #fff; }
.welcome-hero p { color: rgba(255, 255, 255, 0.9); }
.welcome-hero .hero-eyebrow { background: rgba(255, 255, 255, 0.18); border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.welcome-hero .hero-actions .btn { background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.45); color: #fff; }
.welcome-hero .hero-actions .btn:hover { background: rgba(255, 255, 255, 0.28); color: #fff; }
.welcome-hero .hero-actions .btn-primary { background: #fff; border-color: #fff; color: var(--brand-700); }
.welcome-hero .hero-actions .btn-primary:hover { background: var(--brand-50); color: var(--brand-800); }

/* ---- Cards ---- */
.card { border-color: var(--line); box-shadow: 0 2px 4px rgba(15, 39, 68, 0.04), 0 6px 18px rgba(11, 100, 208, 0.06); }
.card-header {
    background: linear-gradient(180deg, #f5faff 0%, #e9f3ff 100%);
    border-bottom: 1px solid #cfe1f6;
}
.card-header h3 > i, .card-header h4 > i, .card-header h5 > i, .card-header h6 > i { color: var(--brand-600); }
.card-header.bg-white, .card-header.bg-light { background: linear-gradient(180deg, #f5faff 0%, #e9f3ff 100%) !important; }

/* ---- Tables ---- */
.table thead th {
    background: linear-gradient(180deg, #dcecff 0%, #cfe4ff 100%);
    color: var(--brand-900);
    border-bottom: 1px solid #b3d2f6 !important;
}
.table .table-light,
.table thead.table-light th,
.table-light > th,
.table-light > td { --bs-table-bg: #d6e9ff; background-color: #d6e9ff !important; }
.table { --bs-table-striped-bg: rgba(11, 100, 208, 0.045); --bs-table-hover-bg: rgba(11, 100, 208, 0.08); }

/* ---- Stat cards: solid tone icon + colour bar ---- */
.stat-card { border-top: 4px solid var(--tone); }
.stat-card::before { opacity: 1; }
.stat-card::after { display: none; }
.stat-card .stat-icon {
    background: var(--tone);
    background: linear-gradient(135deg, var(--tone), color-mix(in srgb, var(--tone) 70%, #000));
    border: 0;
    color: #fff !important;
    box-shadow: 0 6px 14px color-mix(in srgb, var(--tone) 35%, transparent);
}
.stat-card .stat-card-icon {
    background: var(--tone);
    background: linear-gradient(135deg, var(--tone), color-mix(in srgb, var(--tone) 70%, #000));
    border: 0;
    color: #fff;
}
.stat-card .stat-value { color: var(--tone); }
.stat-card .stat-label { color: var(--ink); font-weight: 600; }

/* ---- Quick links ---- */
.quick-link { border-color: var(--line); }
.quick-link i { background: linear-gradient(135deg, var(--brand-500), var(--brand-700)); color: #fff; border: 0; box-shadow: 0 6px 14px rgba(11, 100, 208, 0.25); }
.quick-link:hover { background: var(--brand-50); }

/* ---- Nav tabs ---- */
.nav-tabs .nav-link.active,
.nav-tabs .nav-item.show .nav-link { background: linear-gradient(180deg, rgba(214, 233, 255, 0.3) 0%, var(--brand-100) 100%); color: var(--brand-800); }

/* ---- Filter bars ---- */
.search-filter-bar,
.filter-section .card-body { background: linear-gradient(135deg, #fff 0%, #eef6ff 100%); }

/* ---- Modals ---- */
.modal-header { background: linear-gradient(135deg, #f5faff 0%, #dcecff 100%); }

/* ---- Footer ---- */
.app-footer { background: rgba(255, 255, 255, 0.7); }

/* =====================================================
   25. Official header rows: ເລກທີ sits on the faculty's row
   ===================================================== */
.doc-meta {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 28px;
    row-gap: 0;
    align-items: baseline;
    justify-content: stretch;
    flex-direction: initial;
    margin-top: 14px;
    padding: 0 4px;
    font-size: 13.5px;
    line-height: 1.75;
}
.doc-meta .dm-l { text-align: left; }
.doc-meta .dm-r { text-align: left; white-space: nowrap; }
.doc-meta .dm-l small { font-size: 11.5px; color: #444; }
@media screen and (max-width: 575.98px) {
    .doc-meta { column-gap: 12px; font-size: 12.5px; }
    .doc-meta .dm-r { white-space: normal; }
}
@media print {
    .doc-meta { font-size: 11pt; }
}
@media print {
    .card, .card.shadow, .card.shadow-sm, .card.border-0, .shadow, .shadow-sm, .stat-card, .report-paper {
        box-shadow: none !important;
        border-color: transparent !important;
    }
    .card { border: 0 !important; }
}

/* =====================================================
   26. Small-screen safety nets
   ===================================================== */
@media screen and (max-width: 575.98px) {
    /* Button rows in mobile cards wrap instead of overflowing */
    .d-flex.gap-2:not(.flex-nowrap), .d-flex.gap-1:not(.flex-nowrap) { flex-wrap: wrap; }
    .d-flex > .btn.flex-fill { min-width: calc(50% - 8px); }
    .card-header .d-flex > .form-select, .card-header .d-flex > select { min-width: 0; flex: 1 1 140px; }
    /* Long words / codes never push the layout */
    .content-area { overflow-wrap: anywhere; }
    .content-area .table { overflow-wrap: normal; }
}