/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=DM+Sans:wght@300;400;500;600&display=swap');


:root {
    --navy: #0d1b2a;
    --navy-mid: #1b2d42;
    --navy-light: #243b55;
    --gold: #c9a84c;
    --gold-light: #e8c96e;
    --gold-pale: #f5e8c0;
    --white: #ffffff;
    --off-white: #f7f5f0;
    --smoke: #eae6df;
    --text-dark: #1a1a2e;
    --text-mid: #4a4a68;
    --text-light: #8888aa;
    --danger: #c0392b;
    --success: #1a7a4a;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(13,27,42,0.08);
    --shadow-md: 0 6px 24px rgba(13,27,42,0.14);
    --shadow-lg: 0 16px 48px rgba(13,27,42,0.20);
    --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', 'Segoe UI', sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.65;
    color: var(--text-dark);
    background-color: var(--off-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ============================================================
   HEADER / NAVBAR
   ============================================================ */

.sa-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(13, 27, 42, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.18);
    box-shadow: 0 4px 32px rgba(0,0,0,0.25);
    transition: background var(--transition), box-shadow var(--transition);
}

    .sa-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 1.5rem;
        height: 66px;
    }

/* Nav container: desktop — always visible as flex row */
.sa-nav-container {
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    margin-left: 1.5rem;
}

    .sa-nav-container .sa-nav {
        display: flex !important;
        align-items: center;
        gap: 2px;
        flex: 1;
    }

/* --- Brand --- */
.sa-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.sa-brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 0 12px rgba(201,168,76,0.4);
    transition: transform var(--transition), box-shadow var(--transition);
}

.sa-brand:hover .sa-brand-icon {
    transform: rotate(-6deg) scale(1.08);
    box-shadow: 0 0 20px rgba(201,168,76,0.6);
}

.sa-brand-name {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.02em;
    line-height: 1;
}

    .sa-brand-name span {
        color: var(--gold);
    }

/* --- Navigation links --- */
.sa-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
}

.sa-nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: color var(--transition), background var(--transition);
    position: relative;
}

    .sa-nav-link::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%) scaleX(0);
        width: calc(100% - 28px);
        height: 2px;
        background: linear-gradient(90deg, var(--gold), var(--gold-light));
        border-radius: 2px;
        transition: transform var(--transition);
    }

    .sa-nav-link:hover {
        color: var(--white);
        background: rgba(255,255,255,0.07);
    }

        .sa-nav-link:hover::after,
        .sa-nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
        }

    .sa-nav-link.active {
        color: var(--gold-light);
    }

    /* --- Nav icon --- */
    .sa-nav-link .nav-icon {
        font-size: 15px;
        opacity: 0.75;
    }

/* --- Nav lists: reset Bootstrap defaults --- */
.sa-nav,
.sa-user-section {
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

    .sa-nav li,
    .sa-user-section li {
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
    }

/* --- User section --- */
.sa-user-section {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.sa-greeting {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(201,168,76,0.1);
    border: 1px solid rgba(201,168,76,0.25);
    border-radius: var(--radius-md);
    color: var(--gold-light);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    /* reset button defaults */
    font-family: inherit;
    line-height: inherit;
    transition: background var(--transition), border-color var(--transition);
}

    .sa-greeting:hover {
        background: rgba(201,168,76,0.18);
        border-color: rgba(201,168,76,0.45);
    }

    /* Bootstrap dropdown toggle: ẩn caret mặc định */
    .sa-greeting.dropdown-toggle::after {
        display: none;
    }

/* Chevron xoay */
.sa-greeting-chevron {
    font-size: .65rem;
    margin-left: 2px;
    opacity: .7;
    transition: transform var(--transition);
}

/* Tên trong greeting: ẩn trên màn hình nhỏ */
.sa-greeting-name {
    font-size: .85rem;
}

/* ── Dropdown menu ── */
.sa-user-dropdown-menu {
    background: var(--navy-mid) !important;
    border: 1px solid rgba(201,168,76,0.2) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: 0 16px 40px rgba(0,0,0,0.45) !important;
    padding: 6px !important;
    min-width: 220px;
    animation: dropdownIn .18s cubic-bezier(0.4,0,0.2,1);
}

@keyframes dropdownIn {
    from {
        opacity: 0;
        transform: translateY(-6px) scale(.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Header: avatar lớn + tên + role */
.sa-dropdown-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px 10px;
}

.sa-dropdown-avatar {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    color: var(--navy);
    box-shadow: 0 0 0 3px rgba(201,168,76,0.25);
}

.sa-dropdown-name {
    font-size: .9rem;
    font-weight: 600;
    color: var(--white);
    line-height: 1.3;
}

.sa-dropdown-role {
    font-size: .75rem;
    color: var(--gold);
    opacity: .85;
    margin-top: 1px;
}

/* Divider */
.sa-dropdown-divider {
    border: none !important;
    border-top: 1px solid rgba(201,168,76,0.15) !important;
    margin: 4px 0 !important;
    opacity: 1 !important;
}

/* Menu items */
.sa-user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: var(--radius-sm);
    color: rgba(201,168,76,0.85);
    font-size: .875rem;
    font-weight: 500;
    text-decoration: none;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    border-left: 2px solid transparent;
    white-space: nowrap;
}

    .sa-user-dropdown-item:hover,
    .sa-user-dropdown-item:focus {
        background: rgba(201,168,76,0.1);
        color: var(--gold);
        border-left-color: var(--gold);
    }

/* Icon box */
.sa-dropdown-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: rgba(201,168,76,0.1);
    font-size: .85rem;
    flex-shrink: 0;
    transition: background var(--transition);
}

.sa-user-dropdown-item:hover .sa-dropdown-icon {
    background: rgba(201,168,76,0.2);
}

/* Danger item */
.sa-user-dropdown-item--danger {
    color: rgba(224,112,112,0.85);
}

    .sa-user-dropdown-item--danger .sa-dropdown-icon {
        background: rgba(192,57,43,0.12);
    }

    .sa-user-dropdown-item--danger:hover,
    .sa-user-dropdown-item--danger:focus {
        background: rgba(192,57,43,0.1);
        color: #e07070;
        border-left-color: #e07070;
    }

        .sa-user-dropdown-item--danger:hover .sa-dropdown-icon {
            background: rgba(192,57,43,0.22);
        }

/* ── Dropdown items (new) ── */
.sa-dditem {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 6px;
    border-left: 2px solid transparent;
    color: rgba(201,168,76,0.85);
    font-size: .875rem;
    font-weight: 500;
    text-decoration: none !important;
    transition: background .22s, color .22s, border-color .22s;
    white-space: nowrap;
}

    .sa-dditem:hover {
        background: rgba(201,168,76,0.1);
        color: #e8c96e;
        border-left-color: #c9a84c;
        text-decoration: none !important;
    }

.sa-dditem-icon {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: rgba(201,168,76,0.12);
    font-size: .85rem;
    flex-shrink: 0;
    transition: background .22s;
}

.sa-dditem:hover .sa-dditem-icon {
    background: rgba(201,168,76,0.22);
}

.sa-dditem--danger {
    color: rgba(224,112,112,0.8);
}

    .sa-dditem--danger .sa-dditem-icon {
        background: rgba(192,57,43,0.12);
    }

    .sa-dditem--danger:hover {
        background: rgba(192,57,43,0.1);
        color: #e07070;
        border-left-color: #e07070;
    }

        .sa-dditem--danger:hover .sa-dditem-icon {
            background: rgba(192,57,43,0.2);
        }

.sa-greeting-avatar {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--navy);
    flex-shrink: 0;
}

.sa-badge-admin {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    background: var(--danger);
    color: var(--white);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 99px;
}

.sa-btn-logout {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    background: transparent;
    border: 1px solid rgba(192,57,43,0.4);
    border-radius: var(--radius-sm);
    color: #e07070;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

    .sa-btn-logout:hover {
        background: rgba(192,57,43,0.15);
        border-color: rgba(192,57,43,0.7);
        color: #ff9090;
    }

.sa-btn-login {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--navy);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(201,168,76,0.35);
    transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

    .sa-btn-login:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 20px rgba(201,168,76,0.5);
        filter: brightness(1.06);
        color: var(--navy);
    }

/* --- Mobile toggler --- */
.sa-toggler {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
}

    .sa-toggler:hover {
        background: rgba(255,255,255,0.12);
    }

    .sa-toggler span {
        display: block;
        height: 2px;
        background: var(--white);
        border-radius: 2px;
        transition: transform var(--transition), opacity var(--transition);
    }

    .sa-toggler.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .sa-toggler.open span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .sa-toggler.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

/* ============================================================
   MAIN CONTENT WRAPPER
   ============================================================ */
.sa-main {
    flex: 1;
    padding: 2.5rem 0 4rem;
    animation: fadeIn 0.45s ease both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ============================================================
   PAGE HERO (optional section inside pages)
   ============================================================ */

.sa-page-hero {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

    .sa-page-hero::before {
        content: '';
        position: absolute;
        top: -40%;
        right: -10%;
        width: 320px;
        height: 320px;
        background: radial-gradient(circle, rgba(201,168,76,0.18) 0%, transparent 70%);
        pointer-events: none;
    }

    .sa-page-hero h1 {
        font-family: var(--font-display);
        font-size: 2rem;
        color: var(--white);
        margin-bottom: 0.25rem;
    }

    .sa-page-hero p {
        color: rgba(255,255,255,0.6);
        font-size: 0.95rem;
    }

/* ============================================================
   CARDS
   ============================================================ */

.sa-card {
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid rgba(13,27,42,0.07);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

    .sa-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
    }

.sa-card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--smoke);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.sa-card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--navy);
    margin: 0;
}

.sa-card-body {
    padding: 1.5rem;
}

/* ============================================================
   TABLES
   ============================================================ */

.sa-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--smoke);
    box-shadow: var(--shadow-sm);
}

.sa-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    font-size: 0.875rem;
}

    .sa-table thead {
        background: var(--navy);
    }

        .sa-table thead th {
            padding: 0.85rem 1.2rem;
            color: var(--gold-light);
            font-weight: 600;
            font-size: 0.78rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            text-align: left;
            white-space: nowrap;
            border: none;
        }

    .sa-table tbody tr {
        border-bottom: 1px solid var(--smoke);
        transition: background var(--transition);
    }

        .sa-table tbody tr:last-child {
            border-bottom: none;
        }

        .sa-table tbody tr:hover {
            background: rgba(201,168,76,0.05);
        }

    .sa-table td {
        padding: 0.85rem 1.2rem;
        color: var(--text-dark);
        vertical-align: middle;
    }

/* ============================================================
   BUTTONS
   ============================================================ */

.sa-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.sa-btn-primary {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    color: var(--white);
    border-color: var(--navy);
    box-shadow: var(--shadow-sm);
}

    .sa-btn-primary:hover {
        background: linear-gradient(135deg, var(--navy-light) 0%, var(--navy) 100%);
        box-shadow: var(--shadow-md);
        transform: translateY(-1px);
        color: var(--white);
    }

.sa-btn-gold {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    color: var(--navy);
    font-weight: 600;
    box-shadow: 0 2px 12px rgba(201,168,76,0.3);
}

    .sa-btn-gold:hover {
        filter: brightness(1.06);
        transform: translateY(-1px);
        box-shadow: 0 4px 18px rgba(201,168,76,0.45);
        color: var(--navy);
    }

.sa-btn-outline {
    background: transparent;
    border-color: var(--navy-light);
    color: var(--navy-light);
}

    .sa-btn-outline:hover {
        background: var(--navy);
        border-color: var(--navy);
        color: var(--white);
        transform: translateY(-1px);
    }

.sa-btn-danger {
    background: transparent;
    border-color: var(--danger);
    color: var(--danger);
}

    .sa-btn-danger:hover {
        background: var(--danger);
        color: var(--white);
    }

.sa-btn-sm {
    padding: 5px 12px;
    font-size: 0.8rem;
}

/* ============================================================
   ALERTS / TOASTS
   ============================================================ */

.sa-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    animation: slideDown 0.3s ease both;
    border: 1px solid transparent;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sa-alert-icon {
    flex-shrink: 0;
    font-size: 18px;
    margin-top: 1px;
}

.sa-alert-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    opacity: 0.6;
    transition: opacity var(--transition);
    padding: 0;
    flex-shrink: 0;
}

    .sa-alert-close:hover {
        opacity: 1;
    }

.sa-alert-success {
    background: rgba(26,122,74,0.08);
    border-color: rgba(26,122,74,0.25);
    color: var(--success);
}

.sa-alert-danger {
    background: rgba(192,57,43,0.08);
    border-color: rgba(192,57,43,0.25);
    color: var(--danger);
}

/* ============================================================
   FORMS
   ============================================================ */

.sa-form-group {
    margin-bottom: 1.25rem;
}

.sa-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.83rem;
    font-weight: 600;
    color: var(--text-mid);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.sa-input,
.sa-select,
.sa-textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--white);
    border: 1.5px solid var(--smoke);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-dark);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    appearance: none;
}

    .sa-input:focus,
    .sa-select:focus,
    .sa-textarea:focus {
        border-color: var(--gold);
        box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
    }

    .sa-input::placeholder {
        color: var(--text-light);
    }

.sa-select {
    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='%238888aa' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

/* ============================================================
   BADGES
   ============================================================ */

.sa-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 99px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.sa-badge-gold {
    background: var(--gold-pale);
    color: #8a6a00;
}

.sa-badge-navy {
    background: rgba(13,27,42,0.08);
    color: var(--navy);
}

.sa-badge-green {
    background: rgba(26,122,74,0.1);
    color: var(--success);
}

.sa-badge-red {
    background: rgba(192,57,43,0.1);
    color: var(--danger);
}

/* ============================================================
   PAGINATION
   ============================================================ */

.sa-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 2rem;
    list-style: none;
}

.sa-page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-mid);
    text-decoration: none;
    border: 1.5px solid var(--smoke);
    background: var(--white);
    transition: all var(--transition);
}

    .sa-page-link:hover,
    .sa-page-link.active {
        background: var(--navy);
        border-color: var(--navy);
        color: var(--white);
    }

    .sa-page-link.active {
        background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
        border-color: var(--gold);
        color: var(--navy);
    }

/* ============================================================
   FOOTER
   ============================================================ */

.sa-footer {
    background: var(--navy);
    padding: 0;
    flex-shrink: 0;
}

.sa-footer-top {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.sa-footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    margin-bottom: 1rem;
}

.sa-footer-brand-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
}

    .sa-footer-brand-name span {
        color: var(--gold);
    }

.sa-footer-desc {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.7;
    max-width: 100%;
}

.sa-footer-heading {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1rem;
}

.sa-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

    .sa-footer-links a {
        color: rgba(255,255,255,0.5);
        text-decoration: none;
        font-size: 0.875rem;
        transition: color var(--transition);
        display: flex;
        align-items: center;
        gap: 6px;
    }

        .sa-footer-links a::before {
            content: '›';
            color: var(--gold);
            font-size: 1rem;
            line-height: 1;
        }

        .sa-footer-links a:hover {
            color: var(--gold-light);
        }

.sa-footer-divider {
    height: 1px;
    background: rgba(255,255,255,0.06);
}

.sa-footer-bottom {
    padding: 1.2rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.sa-footer-copy {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.3);
}

    .sa-footer-copy strong {
        color: var(--gold);
        font-weight: 600;
    }

.sa-footer-tagline {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.22);
    font-style: italic;
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.text-gold {
    color: var(--gold);
}

.text-navy {
    color: var(--navy);
}

.text-muted {
    color: var(--text-light);
}

.font-display {
    font-family: var(--font-display);
}

.divider {
    height: 1px;
    background: var(--smoke);
    margin: 1.5rem 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 991px) {
    .sa-toggler {
        display: flex;
    }

    .sa-nav-container {
        display: none !important;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        background: rgba(13,27,42,0.98);
        backdrop-filter: blur(16px);
        padding: 1rem 1.5rem 1.5rem;
        border-bottom: 1px solid rgba(201,168,76,0.15);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        gap: 0.25rem;
        margin-left: 0;
    }

        .sa-nav-container.open {
            display: flex !important;
        }

        .sa-nav-container .sa-nav {
            flex-direction: column;
            width: 100%;
            gap: 2px;
        }

    .sa-nav-link {
        padding: 10px 14px;
        border-radius: var(--radius-sm);
        width: 100%;
    }

    .sa-user-section {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        padding-top: 0.75rem;
        border-top: 1px solid rgba(255,255,255,0.07);
        gap: 6px;
    }

    .sa-greeting {
        width: 100%;
    }

    .sa-user-menu-wrap {
        width: 100%;
    }


    .sa-btn-logout,
    .sa-btn-login {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 767px) {
    .sa-page-hero {
        padding: 1.75rem 1.5rem;
    }

        .sa-page-hero h1 {
            font-size: 1.6rem;
        }

    .sa-footer-top .row > div {
        margin-bottom: 1.5rem;
    }

    .sa-footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .sa-main {
        padding: 1.5rem 0 3rem;
    }
}

/* ============================================================
   FOOTER GRID FIX (override Bootstrap row/col conflicts)
   ============================================================ */

.sa-footer-grid {
    display: grid !important;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: 2rem;
    align-items: start;
    width: 100%;
}

    /* Reset Bootstrap col padding inside footer grid */
    .sa-footer-grid > * {
        padding-left: 0 !important;
        padding-right: 0 !important;
        max-width: none !important;
        flex: none !important;
        width: auto !important;
    }

/* Footer links: reset padding from global ul reset */
.sa-footer-links {
    padding: 0 !important;
    margin: 0 !important;
}

@media (max-width: 991px) {
    .sa-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 575px) {
    .sa-footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   HOME PAGE
   ============================================================ */

.home-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    gap: 2rem;
}

.home-gif {
    width: 320px;
    max-width: 100%;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(13,27,42,0.18);
}

.home-nav-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.home-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

    .home-nav-btn:hover {
        transform: translateY(-2px);
    }

.home-nav-btn-primary {
    background: linear-gradient(135deg, #c9a84c, #e8c96e);
    color: #0d1b2a;
    box-shadow: 0 4px 16px rgba(201,168,76,0.35);
}

    .home-nav-btn-primary:hover {
        box-shadow: 0 8px 24px rgba(201,168,76,0.5);
        color: #0d1b2a;
    }

.home-nav-btn-outline {
    background: transparent;
    border: 2px solid #243b55;
    color: #243b55;
}

    .home-nav-btn-outline:hover {
        background: #0d1b2a;
        border-color: #0d1b2a;
        color: #fff;
    }

.modal {
    z-index: 1055 !important;
}

.modal-dialog {
    z-index: 1055 !important;
}

.modal-backdrop {
    display: none !important;
}


.sa-btn-register {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: transparent;
    border: 1.5px solid rgba(201,168,76,0.5);
    border-radius: var(--radius-sm);
    color: var(--gold-light);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

    .sa-btn-register:hover {
        background: rgba(201,168,76,0.12);
        border-color: var(--gold-light);
        color: var(--gold-light);
        transform: translateY(-1px);
    }

.modal {
    padding-top: 70px !important;
}

/* Giới hạn chiều cao modal = viewport trừ navbar */
.modal-dialog-scrollable .modal-content {
    max-height: calc(100vh - 70px - 2rem);
    display: flex;
    flex-direction: column;
}

/* Header + Footer cố định, Body cuộn */
.modal-dialog-scrollable .modal-header {
    flex-shrink: 0;
}

.modal-dialog-scrollable .modal-body {
    overflow-y: auto;
    flex: 1 1 auto;
}

.modal-dialog-scrollable .modal-footer {
    flex-shrink: 0;
}

.modal-header[bis_skin_checked] {
    z-index: 1 !important;
    position: relative !important;
}

.modal-content {
    z-index: 1060 !important;
    position: relative !important;
}

/* ============================================================
   ADMIN BAR (dải thông báo trên cùng khi đăng nhập Admin)
   ============================================================ */

.sa-admin-bar {
    background: linear-gradient(90deg, #7b1c1c 0%, #a93226 50%, #7b1c1c 100%);
    color: rgba(255,255,255,0.92);
    text-align: center;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

    .sa-admin-bar strong {
        color: #ffb3b3;
    }

    .sa-admin-bar .bi {
        margin-right: 4px;
        font-size: 0.75rem;
    }

/* ============================================================
   STUDENT BADGE (trong header greeting)
   ============================================================ */

.sa-badge-student {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: #1a4a7a;
    color: #a8d4ff;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 99px;
}

    .sa-badge-student .bi {
        font-size: 0.7rem;
    }

/* ============================================================
   ADMIN DASHBOARD CARDS
   ============================================================ */

.sa-dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.sa-dash-card {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    padding: 1.4rem 1.5rem;
    background: var(--white);
    border: 1px solid rgba(13,27,42,0.07);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: var(--text-dark);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

    .sa-dash-card::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(201,168,76,0.04) 0%, transparent 60%);
        pointer-events: none;
    }

    .sa-dash-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: rgba(201,168,76,0.3);
        color: var(--text-dark);
    }

.sa-dash-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.sa-dash-card-body {
    flex: 1;
    min-width: 0;
}

.sa-dash-card-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 3px;
}

.sa-dash-card-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
}

.sa-dash-card-arrow {
    color: rgba(201,168,76,0.4);
    font-size: 1.3rem;
    flex-shrink: 0;
    transition: color var(--transition), transform var(--transition);
}

.sa-dash-card:hover .sa-dash-card-arrow {
    color: var(--gold);
    transform: translateX(3px);
}

/* Stats bar trong admin dashboard */
.sa-dash-stats {
    background: var(--navy);
    border-radius: var(--radius-lg);
    padding: 2rem 2.5rem;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.sa-dash-stat-item {
    text-align: center;
}

.sa-dash-stat-num {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 2px;
}

.sa-dash-stat-label {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

.sa-dash-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
}

/* ============================================================
   STUDENT HOME — Feature row
   ============================================================ */

.sa-student-feature-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.sa-student-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.4rem;
    background: var(--white);
    border: 1px solid var(--smoke);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.sa-student-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white);
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    flex-shrink: 0;
}

.sa-student-feature-title {
    font-weight: 600;
    color: var(--navy);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.sa-student-feature-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.55;
}

/* ============================================================
   LANDING PAGE — Feature grid (chưa đăng nhập)
   ============================================================ */

.sa-landing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-top: 2rem;
}

.sa-landing-feature-item {
    padding: 1.5rem 1.4rem;
    background: var(--white);
    border: 1px solid var(--smoke);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

    .sa-landing-feature-item:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
    }

.sa-landing-feature-icon {
    font-size: 2rem;
    color: var(--gold);
    margin-bottom: .75rem;
    display: block;
}

.sa-landing-feature-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: .4rem;
}

.sa-landing-feature-desc {
    font-size: 0.82rem;
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 767px) {
    .sa-dash-stats {
        padding: 1.5rem;
    }

    .sa-dash-stat-divider {
        display: none;
    }

    .sa-dash-stats {
        gap: 1rem;
    }
}