:root {
    --deep: #eaf3ff;
    --navy: #ffffff;
    --ocean: #f0f7ff;
    --sapphire: #d6eaff;
    --cobalt: #2563eb;
    --azure: #3b82f6;
    --sky: #1d4ed8;
    --mist: #b3d6ff;
    --frost: #dbeafe;
    --white: #0d1f3c;
    --glass: rgba(37, 99, 235, 0.06);
    --glass2: rgba(37, 99, 235, 0.12);
    --border: rgba(59, 130, 246, 0.2);
    --shadow: 0 8px 32px rgba(37, 99, 235, 0.12);
    --glow: 0 0 40px rgba(59, 130, 246, 0.22);
    --sidebar-w: 260px;
    --header-h: 64px;
    --radius: 14px;
    --font-head: 'Poppins', sans-serif;
    --font-body: 'Poppins', sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background: #eaf3ff;
    color: #0d1f3c;
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

.khoa-phong-item {
    padding: 6px 10px;
    margin-bottom: 5px;
    background: #f8fafc;
    border-radius: 6px;
    font-size: 14px;
    color: #374151;
}

.text-center {
    text-align: center !important;
}

/* ── SIDEBAR ── */
.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: linear-gradient(180deg, #182757 0%, #1a5aa0 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(.4, 0, .2, 1);
}

.sidebar-logo {
    padding: 24px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.logo-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.logo-text {
    font-family: var(--font-head);
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
}

.logo-sub {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.sidebar-nav a {
    text-decoration: none;
}

.nav-section-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    padding: 16px 8px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 2px;
    position: relative;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    font-weight: 500;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: #ffffff;
    border-radius: 0 3px 3px 0;
}

.nav-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 20px;
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: background 0.2s;
}

.user-card:hover {
    background: rgba(255, 255, 255, 0.18);
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    display: flex;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    color: white;
    flex-shrink: 0;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-size: 13px;
    font-weight: 500;
    color: #ffffff;
}

.user-role {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.65);
}

/* ── MAIN LAYOUT ── */
.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s;
}

/* ── HEADER ── */
.header {
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.08);
}

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: #2563eb;
    font-size: 22px;
    padding: 4px;
}

.page-title {
    font-family: var(--font-head);
    font-size: 20px;
    font-weight: 600;
    color: #0d1f3c;
}

.breadcrumb {
    font-size: 12px;
    color: #2563eb;
    opacity: 0.7;
    margin-left: 4px;
}

.header-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-box {
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 10px;
    padding: 5px 8px;
    cursor: pointer;
}

.search-icon {
    color: #2563eb;
    font-size: 14px;
    opacity: 0.7;
}

.icon-btn {
    width: 36px;
    height: 36px;
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 9px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 16px;
    transition: all 0.2s;
}

.icon-btn:hover {
    background: #d6eaff;
    border-color: #3b82f6;
}

/* ── CONTENT ── */
.content {
    flex: 1;
    padding: 28px 28px 40px;
    background: #eaf3ff;
}

/* ── STATS ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stats-grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stats-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius);
    padding: 20px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.07);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.05);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(59, 130, 246, 0.15);
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 14px;
}

.stat-icon.blue {
    background: rgba(59, 130, 246, 0.1);
}

.stat-icon.cyan {
    background: rgba(16, 185, 129, 0.1);
}

.stat-icon.indigo {
    background: rgba(16, 185, 129, 0.1);
}

.stat-icon.teal {
    background: rgba(245, 158, 11, 0.1);
}

.stat-value {
    font-family: var(--font-head);
    font-size: 28px;
    font-weight: 700;
    color: #0d1f3c;
}

.stat-label {
    font-size: 12px;
    color: #2563eb;
    margin-top: 2px;
}

.stat-delta {
    font-size: 11px;
    font-weight: 500;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.delta-up {
    color: #059669;
}

.delta-down {
    color: #dc2626;
}

/* ── SECTION HEADER ── */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    margin-left: 5px;
}

.section-title {
    text-transform: uppercase;
    font-family: var(--font-head);
    font-size: 18px;
    font-weight: 600;
    color: #0d1f3c;
}

.section-sub {
    font-size: 12px;
    color: #2563eb;
    opacity: 0.75;
    margin-top: 2px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:disabled {
    background: linear-gradient(135deg, #afafaf, #2c2c2c);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-excel {
    background: linear-gradient(135deg, #059669, #10b981);
    color: white;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.35);
}

.btn-excel:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.45);
}

.btn-excel:disabled {
    background: linear-gradient(135deg, #afafaf, #2c2c2c);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}


.btn-ghost {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: #2563eb;
}

.btn-ghost:hover {
    background: #eaf3ff;
    border-color: #3b82f6;
}

.btn-warning {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #d18400;
}

.btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102, 65, 0, 0.45);
}

.btn-danger {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: #dc2626;
}

.btn-danger:hover {
    background: rgba(220, 38, 38, 0.15);
}

/* ── FILTER TABS ── */
.filter-tabs {
    display: flex;
    gap: 6px;
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 18px;
}

.filter-tab {
    padding: 7px 16px;
    border-radius: 7px;
    font-size: 13px;
    font-weight: 400;
    cursor: pointer;
    border: none;
    background: none;
    color: rgba(13, 31, 60, 0.55);
    font-family: var(--font-body);
    transition: all 0.2s;
}

.filter-tab.active {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: white;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.filter-tab:hover:not(.active) {
    color: #0d1f3c;
    background: #eaf3ff;
}

/* ── TABLE ── */
.table-card {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.06);
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    padding: 13px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #2563eb;
    background: #eaf3ff;
    border-bottom: 1px solid rgba(59, 130, 246, 0.12);
    white-space: nowrap;
}

td {
    padding: 13px 16px;
    font-size: 13.5px;
    color: rgba(13, 31, 60, 0.72);
    border-bottom: 1px solid rgba(59, 130, 246, 0.07);
    transition: background 0.15s;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background: #eaf3ff;
    color: #0d1f3c;
}

.col-name {
    color: #0d1f3c;
    font-weight: 500;
}

.col-name small {
    display: block;
    font-size: 11px;
    color: #2563eb;
    opacity: 0.65;
    font-weight: 400;
    margin-top: 2px;
}

/* ── BADGES ── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}

.badge-right {
    margin-left: auto;
    font-size: 11px;
    color: #2563eb;
    opacity: .6;
}

.badge-blue {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-green {
    background: rgba(5, 150, 105, 0.1);
    color: #059669;
    border: 1px solid rgba(5, 150, 105, 0.2);
}

.badge-yellow {
    background: rgba(217, 119, 6, 0.1);
    color: #d97706;
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.badge-orange {
    background: rgba(220, 105, 38, 0.08);
    color: #dc7e26;
    border: 1px solid rgba(220, 111, 38, 0.15);
}

.badge-red {
    background: rgba(220, 38, 38, 0.08);
    color: #dc2626;
    border: 1px solid rgba(220, 38, 38, 0.15);
}

.badge-purple {
    background: rgba(54, 56, 190, 0.1);
    color: #6366f1;
    border: 1px solid rgba(139, 56, 235, 0.2);
}

.badge-pink {
    background: rgba(241, 99, 210, 0.1);
    color: #f735cd;
    border: 1px solid rgba(229, 56, 235, 0.2);
}

/* ── ROW ACTIONS ── */
.row-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.act-btn {
    width: 30px;
    height: 30px;
    border-radius: 7px;
    border: 1px solid rgba(59, 130, 246, 0.18);
    background: #eaf3ff;
    color: #2563eb;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.act-btn:hover {
    background: #d6eaff;
    border-color: #3b82f6;
}

.act-btn.del:hover {
    background: rgba(220, 38, 38, 0.08);
    border-color: rgba(220, 38, 38, 0.2);
    color: #dc2626;
}

.activity-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.08);
}

.activity-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.act-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 5px;
    flex-shrink: 0;
}

.act-dot.blue {
    background: #3b82f6;
    box-shadow: 0 0 6px rgba(59, 130, 246, 0.5);
}

.act-dot.green {
    background: #059669;
    box-shadow: 0 0 6px rgba(5, 150, 105, 0.5);
}

.act-dot.yellow {
    background: #d97706;
    box-shadow: 0 0 6px rgba(217, 119, 6, 0.5);
}

.act-dot.red {
    background: #dc2626;
    box-shadow: 0 0 6px rgba(220, 38, 38, 0.5);
}

.act-text {
    font-size: 12.5px;
    color: rgba(13, 31, 60, 0.72);
    line-height: 1.5;
}

.act-text strong {
    color: #0d1f3c;
}

.act-time {
    font-size: 10.5px;
    color: #2563eb;
    opacity: 0.55;
    margin-top: 3px;
}

/* ── MODAL ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(13, 31, 60, 0.3);
    backdrop-filter: blur(6px);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.open {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.18);
    border-radius: 18px;
    padding: 28px;
    width: 100%;
    max-width: 520px;
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.15);
    animation: slideUp 0.25s cubic-bezier(.4, 0, .2, 1);
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: none;
        opacity: 1;
    }
}

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

.modal-title {
    font-family: var(--font-head);
    font-size: 20px;
    color: #0d1f3c;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    color: #2563eb;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: rgba(220, 38, 38, 0.08);
    color: #dc2626;
    border-color: rgba(220, 38, 38, 0.2);
}

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #2563eb;
    margin-bottom: 7px;
    letter-spacing: 0.5px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 9px;
    color: #0d1f3c;
    font-size: 13.5px;
    font-family: var(--font-body);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.form-input::placeholder {
    color: rgba(13, 31, 60, 0.3);
}

select.form-input {
    cursor: pointer;
}

textarea.form-input {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-row-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

/* ── SIDEBAR OVERLAY ── */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

/* ── TOAST ── */
.toast {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13.5px;
    color: white;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
    z-index: 300;
    transform: translateY(80px);
    opacity: 0;
    transition: all 0.35s cubic-bezier(.4, 0, .2, 1);
    max-width: 340px;
}

.toast.show {
    transform: none;
    opacity: 1;
}

.toast-icon {
    font-size: 18px;
}

/* ── PAGINATION ── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-top: 1px solid rgba(59, 130, 246, 0.08);
}

.page-info {
    font-size: 12px;
    color: #2563eb;
    opacity: 0.65;
}

.page-btns {
    display: flex;
    gap: 4px;
}

.page-btn {
    width: 30px;
    height: 30px;
    border-radius: 7px;
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.18);
    color: #2563eb;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.page-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

.page-btn:hover:not(.active) {
    background: #dbeafe;
}

/* ── CHART PLACEHOLDER ── */
.chart-bar-wrap {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 100px;
    padding: 8px 0;
}

.chart-bar {
    flex: 1;
    border-radius: 5px 5px 0 0;
    background: linear-gradient(180deg, #3b82f6, #2563eb);
    opacity: 0.6;
    transition: opacity 0.2s;
    min-width: 12px;
}

.chart-bar:hover {
    opacity: 1;
}

.chart-labels {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.chart-label {
    flex: 1;
    text-align: center;
    font-size: 9px;
    color: #2563eb;
    opacity: 0.55;
    min-width: 12px;
}

/* ── EMPTY STATE ── */
.empty {
    text-align: center;
    padding: 48px 24px;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 14px;
    opacity: 0.35;
}

.empty-text {
    font-size: 14px;
    color: #2563eb;
    opacity: 0.55;
}

/* ══════════════════════════════════════
     DATATABLES – Custom Theme (Blue #b3d6ff)
  ══════════════════════════════════════ */

/* Wrapper */
.dataTables_wrapper {
    font-family: var(--font-body);
    color: #0d1f3c;
    padding: 0;
}

/* Top toolbar: search + length */
.dataTables_wrapper .dataTables_top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 10px;
    gap: 12px;
    flex-wrap: wrap;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    background: #f5f9ff;
    border-radius: 14px 14px 0 0;
}

/* Length select */
.dataTables_wrapper .dataTables_length {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(13, 31, 60, 0.65);
}

.dataTables_wrapper .dataTables_length select {
    padding: 5px 28px 5px 10px;
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 7px;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%232563eb'/%3E%3C/svg%3E") no-repeat right 9px center;
    background-size: 8px;
    -webkit-appearance: none;
    appearance: none;
    color: #0d1f3c;
    font-family: var(--font-body);
    font-size: 13px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.dataTables_wrapper .dataTables_length select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

/* Search box */
.dataTables_wrapper .dataTables_filter {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(13, 31, 60, 0.65);
}

.dataTables_wrapper .dataTables_filter input {
    padding: 7px 12px 7px 34px;
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 8px;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%232563eb' stroke-width='2'%3E%3Ccircle cx='6' cy='6' r='4'/%3E%3Cpath d='M9 9l3 3'/%3E%3C/svg%3E") no-repeat 10px center;
    color: #0d1f3c;
    font-family: var(--font-body);
    font-size: 13px;
    outline: none;
    width: 200px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
    width: 240px;
}

.dataTables_wrapper .dataTables_filter label {
    display: flex;
    align-items: center;
    gap: 0;
}

.dataTables_wrapper .dataTables_filter label>span {
    display: none;
}

/* hide "Search:" text */

/* Table base — override default DT borders */
table.dataTable {
    width: 100% !important;
    border-collapse: collapse !important;
    margin: 0 !important;
}

table.dataTable thead th,
table.dataTable thead td {
    padding: 13px 16px !important;
    font-size: 11px !important;
    font-weight: 600 !important;
    letter-spacing: 1px !important;
    text-transform: uppercase !important;
    color: #2563eb !important;
    background: #eaf3ff !important;
    border-bottom: 1px solid rgba(59, 130, 246, 0.15) !important;
    border-top: none !important;
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

table.dataTable thead th:active {
    outline: none;
}

/* Sort icons */
table.dataTable thead .sorting,
table.dataTable thead .sorting_asc,
table.dataTable thead .sorting_desc {
    background-image: none !important;
    position: relative;
    padding-right: 26px !important;
}

table.dataTable thead .sorting::after,
table.dataTable thead .sorting_asc::after,
table.dataTable thead .sorting_desc::after {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    opacity: 0.4;
    content: '⇅';
}

table.dataTable thead .sorting_asc::after {
    content: '↑';
    opacity: 1;
    color: #2563eb;
}

table.dataTable thead .sorting_desc::after {
    content: '↓';
    opacity: 1;
    color: #2563eb;
}

/* Body rows */
table.dataTable tbody tr {
    border-bottom: 1px solid rgba(59, 130, 246, 0.07) !important;
    transition: background 0.15s;
}

table.dataTable tbody tr:last-child {
    border-bottom: none !important;
}

table.dataTable tbody tr:hover td {
    background: #eaf3ff !important;
}

table.dataTable tbody td {
    padding: 12px 16px !important;
    font-size: 13.5px !important;
    color: rgba(13, 31, 60, 0.75) !important;
    border-top: none !important;
    vertical-align: middle;
}

table.dataTable.no-footer {
    border-bottom: none !important;
}

/* Striped rows */
table.dataTable.stripe tbody tr.odd td,
table.dataTable.display tbody tr.odd td {
    background: #f8fbff;
}

/* Bottom bar: info + pagination */
.dataTables_wrapper .dataTables_bottom-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-top: 1px solid rgba(59, 130, 246, 0.09);
    flex-wrap: wrap;
    gap: 10px;
    background: #fff;
    border-radius: 0 0 14px 14px;
}

/* Info text */
.dataTables_wrapper .dataTables_info {
    font-size: 12px;
    color: #2563eb;
    opacity: 0.65;
}

/* Pagination */
.dataTables_wrapper .dataTables_paginate {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    min-width: 30px;
    height: 30px;
    border-radius: 7px !important;
    border: 1px solid rgba(59, 130, 246, 0.18) !important;
    background: #eaf3ff !important;
    color: #2563eb !important;
    font-size: 12.5px !important;
    font-family: var(--font-body) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    padding: 0 8px !important;
    transition: all 0.18s !important;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: #d6eaff !important;
    border-color: #3b82f6 !important;
    color: #1d4ed8 !important;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: linear-gradient(135deg, #2563eb, #3b82f6) !important;
    border-color: #2563eb !important;
    color: #fff !important;
    font-weight: 600 !important;
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.disabled,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled:hover {
    opacity: 0.35 !important;
    cursor: default !important;
    background: #eaf3ff !important;
    border-color: rgba(59, 130, 246, 0.1) !important;
    color: #2563eb !important;
}

.dataTables_wrapper .dataTables_paginate .ellipsis {
    color: rgba(37, 99, 235, 0.5);
    padding: 0 4px;
    font-size: 13px;
    align-self: center;
}

/* Processing overlay */
.dataTables_wrapper .dataTables_processing {
    background: rgba(234, 243, 255, 0.9);
    color: #2563eb;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    font-size: 13px;
    font-family: var(--font-body);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.12);
}

/* Empty rows message */
table.dataTable tbody td.dataTables_empty {
    text-align: center !important;
    color: #2563eb !important;
    opacity: 0.5;
    padding: 40px !important;
    font-size: 14px !important;
}

/* Mobile: stacked toolbar */
@media (max-width: 600px) {
    .dataTables_wrapper .dataTables_filter input {
        width: 140px;
    }

    .dataTables_wrapper .dataTables_filter input:focus {
        width: 160px;
    }

    .dataTables_wrapper .dataTables_bottom-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .dataTables_wrapper .dataTables_paginate .paginate_button {
        min-width: 26px;
        height: 26px;
        font-size: 11.5px !important;
    }
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(59, 130, 246, 0.25);
    border-radius: 2px;
}

/* ── MOBILE BOTTOM NAV ── */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 62px;
    background: #ffffff;
    border-top: 1px solid rgba(59, 130, 246, 0.15);
    box-shadow: 0 -4px 20px rgba(37, 99, 235, 0.08);
    z-index: 150;
    padding: 0 4px;
    align-items: center;
    justify-content: space-around;
}

.mob-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    flex: 1;
    padding: 6px 0;
    cursor: pointer;
    border-radius: 10px;
    transition: background 0.2s;
    color: rgba(13, 31, 60, 0.45);
    font-size: 10px;
    font-weight: 500;
    font-family: var(--font-body);
}

.mob-nav-item .mob-icon {
    font-size: 20px;
    line-height: 1;
}

.mob-nav-item.active {
    color: #2563eb;
}

.mob-nav-item.active .mob-icon {
    filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.35));
}

.mob-nav-item:active {
    background: rgba(37, 99, 235, 0.06);
}

@media (max-width: 768px) {
    .mobile-nav {
        display: flex;
    }
}

/* ── PAGE SECTIONS ── */
.page {}

.page.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

/* ── QUESTION CARD ── */
.q-card {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 22px;
    transition: all 0.2s;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.05);
}

.q-card:hover {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 6px 22px rgba(59, 130, 246, 0.12);
}

.q-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.q-num {
    font-family: var(--font-head);
    font-size: 13px;
    color: #2563eb;
    font-weight: 600;
}

.q-text {
    font-size: 14px;
    color: #0d1f3c;
    line-height: 1.6;
    margin-bottom: 12px;
}

.q-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.q-opt {
    padding: 7px 12px;
    border-radius: 7px;
    font-size: 12.5px;
    /* color: rgba(13, 31, 60, 0.65); */
    background: #eaf3ff;
    border: 1px solid rgba(59, 130, 246, 0.12);
    display: flex;
    align-items: center;
    gap: 8px;
}

.q-opt.correct {
    background: rgba(5, 150, 105, 0.08);
    border-color: rgba(5, 150, 105, 0.25);
    color: #059669;
}

.q-opt-label {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid currentColor;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    flex-shrink: 0;
}

.q-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid rgba(59, 130, 246, 0.07);
}

/* ── INTERACTIVE OPTIONS ── */
.q-opt-input {
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.q-opt-input input[type="radio"] {
    display: none;
}

.q-opt-input:hover {
    background: #e8f2ff;
    border-color: rgba(59, 130, 246, 0.4);
}

.q-opt-input.q-opt-selected {
    background: #effffc;
    border: 2px solid #76d4a2;
    color: #059669;
}

/* ── TEST CARD ── */
.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.test-card {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius);
    padding: 22px;
    cursor: pointer;
    transition: all 0.25s;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.05);
}

.test-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.test-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.35);
}

.test-card-title {
    font-family: var(--font-head);
    font-size: 16px;
    color: #0d1f3c;
    margin-bottom: 8px;
    line-height: 1.4;
}

.test-card-desc {
    font-size: 12.5px;
    color: rgba(13, 31, 60, 0.6);
    line-height: 1.5;
    margin-bottom: 16px;
}

.test-meta-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.test-meta-item {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 11.5px;
    color: #2563eb;
    opacity: 0.8;
}

.test-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(59, 130, 246, 0.08);
}

.progress-bar {
    height: 4px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 2px;
    margin-top: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    border-radius: 2px;
    transition: width 0.5s ease;
}


/* ── bai thi css ── */
.container-bt {
    max-width: 100%;
    width: 70%;
    margin: 30px auto;
    background: white;
    border-radius: 25px;
    box-shadow: 0 10px 40px rgba(173, 188, 255, 0.705);
    overflow: hidden;
}

.header-bt {
    /* background: linear-gradient(135deg, #ff9ab5 0%, #b3d6ff 100%); */
    /* background: linear-gradient(135deg, #ce5fb2 0%, #ffb3d6 100%); */
    background: linear-gradient(135deg, #286ab2 0%, #b3d6ff 100%);
    padding: 40px 30px;
    text-align: center;
    color: white;
    /* color: #d4275b; */
}

.logo-bt {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 50%;
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.logo-bt img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header-bt h1 {
    /* font-size: 28px; */
    margin-bottom: 10px;
    font-weight: 600;
    font-weight: bold;
}

.header-bt h2 {
    /* font-size: 20px; */
    font-weight: 400;
    opacity: 0.95;
    font-weight: bold;
}

.content-bt {
    padding: 50px 50px;
}

.progress-bar-bt {
    height: 7px;
    background: #f7cfee;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    overflow: hidden;
    z-index: 1000;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #2563eb);
    width: 0%;
    transition: width 0.3s ease;
}

.rating-section {
    background: linear-gradient(135deg, #f5f5ff 0%, #e8f4ff 100%);
    padding: 20px;
    border-radius: 20px;
}

.rating-section .section-title-bt {
    text-align: center;
    display: block;
    color: #336cd6;
    font-size: 22px;
    text-align: center;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 15px 0px;
}

.submit-btn {
    background: linear-gradient(135deg, #9aa9ff 0%, #286ab2 100%);
    color: white;
    border: none;
    padding: 16px 50px;
    font-size: 17px;
    font-weight: 600;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(40, 106, 178, 0.3);
    display: block;
    margin: 10px auto 20px;
    margin-bottom: 0;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(40, 106, 178, 0.4);
}


@media (max-width: 768px) {

    .container-bt {
        max-width: 100%;
        width: 100%;
        margin-top: 0;
        border-radius: 0;
    }

    .content-bt {
        padding: 30px 20px;
    }

    .rating-section {
        padding: 0px;
    }

}

/* Scroll to Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 999;
}

.scroll-top-btn:hover {
    background-color: #0056b3;
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
}


/* ── FILE UPLOAD ── */
.file-upload-wrapper {
    position: relative;
}

.file-input-hidden {
    display: none;
}

.file-upload-area {
    border: 2px dashed rgba(59, 130, 246, 0.3);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: rgba(59, 130, 246, 0.02);
}

.file-upload-area:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.05);
}

.file-upload-areaUpdate {
    border: 2px dashed rgba(59, 130, 246, 0.3);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: rgba(59, 130, 246, 0.02);
}

.file-upload-areaUpdate:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.05);
}

.file-upload-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.file-upload-text {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.file-upload-main {
    font-size: 14px;
    color: #0d1f3c;
    font-weight: 500;
}

.file-upload-link {
    color: #2563eb;
    font-weight: 600;
}

.file-upload-sub {
    font-size: 12px;
    color: rgba(13, 31, 60, 0.5);
}

.file-upload-info {
    background: rgba(5, 150, 105, 0.08);
    border: 1px solid rgba(5, 150, 105, 0.2);
    border-radius: var(--radius);
    padding: 14px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    font-size: 20px;
}

.file-details {
    flex: 1;
    text-align: left;
}

.file-name {
    font-size: 13px;
    font-weight: 500;
    color: #059669;
    word-break: break-all;
}

.file-size {
    font-size: 11px;
    color: rgba(5, 150, 105, 0.7);
    margin-top: 3px;
}

.file-remove {
    cursor: pointer;
    color: #dc2626;
    font-size: 18px;
    transition: all 0.2s;
}

.file-remove:hover {
    color: #b91c1c;
    transform: scale(1.2);
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-top: 10px;
}

.ht-pass {
    background: rgba(52, 211, 153, 0.2);
    color: #6ee7b7;
    border: 1px solid rgba(52, 211, 153, 0.35);
}

.ht-fail {
    background: rgba(252, 165, 165, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(252, 165, 165, 0.35);
}

.ht-pending {
    background: rgba(253, 230, 138, 0.2);
    color: #fde68a;
    border: 1px solid rgba(253, 230, 138, 0.35);
}

/* Toast Notification Styles */
.toast-container {
    position: fixed;
    top: 40px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 300px;
    animation: slideInRight 0.3s ease-out;
    pointer-events: auto;
    font-size: 14px;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.success .toast-icon {
    color: #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.toast.error .toast-icon {
    color: #ef4444;
}

.toast.warning {
    border-left: 4px solid #f59e0b;
}

.toast.warning .toast-icon {
    color: #f59e0b;
}

.toast.info {
    border-left: 4px solid #3b82f6;
}

.toast.info .toast-icon {
    color: #3b82f6;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 2px;
}

.toast-message {
    color: #6b7280;
    font-size: 13px;
}

.toast-close {
    background: none;
    border: none;
    font-size: 18px;
    color: #9ca3af;
    cursor: pointer;
    padding: 0;
    margin-left: 8px;
    flex-shrink: 0;
    transition: color 0.2s;
}

.toast-close:hover {
    color: #6b7280;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: currentColor;
    border-radius: 0 0 8px 0;
    animation: slideOut 3s linear forwards;
}

.toast.success .toast-progress {
    background: #10b981;
}

.toast.error .toast-progress {
    background: #ef4444;
}

.toast.warning .toast-progress {
    background: #f59e0b;
}

.toast.info .toast-progress {
    background: #3b82f6;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

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

@keyframes slideOut {
    from {
        width: 100%;
    }

    to {
        width: 0;
    }
}

@keyframes slideOutRight {
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

.toast.removing {
    animation: slideOutRight 0.3s ease-in forwards;
}


@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

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

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

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

/* ===== Select2 Container ===== */
.select2-container {
    width: 100% !important;
    font-size: 14px;
}

/* ===== Ô select ===== */
.select2-container--default .select2-selection--single {
    height: 42px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all .2s ease;
}

/* Hover */
.select2-container--default .select2-selection--single:hover {
    border-color: #3b82f6;
}

/* Focus */
.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--open .select2-selection--single {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

/* Text */
.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 42px;
    padding-left: 14px;
    color: #374151;
    font-weight: 500;
}

/* Arrow */
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 42px;
    right: 0px;
}

/* ===== Dropdown ===== */

.select2-dropdown {
    border: 1px solid #dbe3f0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, .12);
}

/* Search box */

.select2-search--dropdown {
    padding: 10px;
    background: #f8fafc;
}

.select2-search--dropdown .select2-search__field {
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 14px;
    outline: none;
}

.select2-search--dropdown .select2-search__field:focus {
    border-color: #2563eb;
}

/* Option */

.select2-results__option {
    padding: 10px 14px;
    transition: background .15s;
}

/* Hover */

.select2-results__option--highlighted.select2-results__option--selectable {
    background: #2563eb !important;
    color: white;
}

/* Selected */

.select2-results__option--selected {
    background: #eff6ff;
    color: #2563eb;
    font-weight: 600;
}

.select2-search--dropdown {
    position: relative;
}

.select2-search--dropdown::before {
    content: "🔍";
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    opacity: .5;
    z-index: 2;
}

.select2-search__field {
    padding-left: 36px !important;
}

/* =========================================================
   SELECT2 MULTIPLE
   ========================================================= */

/* ===== Ô select multiple ===== */
.select2-container--default .select2-selection--multiple {
    min-height: 42px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    padding: 4px 8px;
    transition: all .2s ease;
    cursor: pointer;
}


/* Hover */
.select2-container--default .select2-selection--multiple:hover {
    border-color: #3b82f6;
}


/* Focus */
.select2-container--default.select2-container--focus .select2-selection--multiple,
.select2-container--default.select2-container--open .select2-selection--multiple {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}


/* ===== Danh sách item đã chọn ===== */

.select2-container--default .select2-selection--multiple .select2-selection__rendered {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0;
}


/* ===== Tag / Item được chọn ===== */

.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 6px;
    color: #2563eb;
    padding: 5px 8px 5px 26px;
    margin: 2px 0;
    font-size: 13px;
    font-weight: 500;
    position: relative;
}


/* ===== Nút X ===== */

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: #2563eb !important;
    border: none !important;
    border-right: none !important;
    font-size: 16px;
    font-weight: bold;
    position: absolute;
    left: 7px;
    top: 50%;
    transform: translateY(-50%);
    padding: 0;
}


/* Hover nút X */

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    background: transparent !important;
    color: #dc2626 !important;
}


/* ===== Ô nhập khi search ===== */

.select2-container--default .select2-selection--multiple .select2-search--inline {
    margin: 2px 0;
}


.select2-container--default .select2-selection--multiple .select2-search--inline .select2-search__field {
    height: 30px;
    margin: 0;
    padding: 7px 6px !important;
    font-size: 14px;
    outline: none;
    border: none !important;
    box-shadow: none !important;
}


/* Placeholder */

.select2-container--default .select2-selection--multiple .select2-search--inline .select2-search__field::placeholder {
    color: #9ca3af;
}


/* ===== Dropdown ===== */

.select2-dropdown {
    border: 1px solid #dbe3f0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, .12);
}


/* Search */

.select2-search--dropdown {
    padding: 10px;
    background: #f8fafc;
    position: relative;
}


.select2-search--dropdown .select2-search__field {
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 8px 10px 8px 36px;
    font-size: 14px;
    outline: none;
}


.select2-search--dropdown .select2-search__field:focus {
    border-color: #2563eb;
}


/* Icon search */

.select2-search--dropdown::before {
    content: "🔍";
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    opacity: .5;
    z-index: 2;
}


/* ===== Option ===== */

.select2-results__option {
    padding: 10px 14px;
    transition: background .15s;
}


/* Hover */

.select2-results__option--highlighted.select2-results__option--selectable {
    background: #2563eb !important;
    color: white;
}


/* Selected */

.select2-results__option--selected {
    background: #eff6ff;
    color: #2563eb;
    font-weight: 600;
}

/* ── COPY QUESTION MODAL ── */

.copy-question-modal {
    width: 520px;
    max-width: calc(100vw - 30px);
}

.copy-question-body {
    display: flex;
    gap: 18px;
    padding: 24px;
}

.copy-question-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 12px;

    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;

    font-size: 22px;

}

.copy-question-content {
    flex: 1;
}

.copy-question-content h3 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
}

.copy-question-description {
    margin: 0 0 16px;
    color: #6b7280;
    font-size: 13px;
    line-height: 1.5;
}

.copy-question-preview {
    padding: 14px 16px;


    background: #f8fafc;

    border: 1px solid #e5e7eb;
    border-radius: 10px;


}

.copy-question-id {
    margin-bottom: 7px;


    font-size: 12px;
    font-weight: 600;

    color: #2563eb;


}

.copy-question-text {
    font-size: 14px;
    line-height: 1.5;
    color: #374151;


    word-break: break-word;


}

#copyQuestionModal .modal-footer {
    padding: 16px 24px;

    border-top: 1px solid #e5e7eb;

    display: flex;
    justify-content: flex-end;
    gap: 10px;


}


/* ═══════════════════════════════
     MAIN
  ═══════════════════════════════ */


/* ─── TOPBAR ─── */
.topbar {
    height: 60px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.13);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 14px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 2px 12px rgba(37, 99, 235, 0.07);
}

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: #2563eb;
    font-size: 22px;
    padding: 4px;
}

.topbar-title {
    font-family: var(--font-head);
    font-size: 18px;
    font-weight: 600;
    color: #0d1f3c;
}

.topbar-date {
    font-size: 12px;
    color: #2563eb;
    opacity: 0.65;
    margin-left: 4px;
}

.topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    width: 36px;
    height: 36px;
    background: #f0f7ff;
    border: 1px solid rgba(59, 130, 246, 0.18);
    border-radius: 9px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 15px;
    transition: all 0.2s;
    position: relative;
}

.icon-btn:hover {
    background: #dbeafe;
    border-color: #3b82f6;
}

.notif-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ef4444;
    border: 1.5px solid #fff;
}

/* ─── CONTENT ─── */
.content {
    flex: 1;
    padding: 24px 24px 60px;
}

/* ─── GREETING ─── */
.greeting-bar {
    background: linear-gradient(135deg, #1e3a8a, #2563eb, #3b82f6);
    border-radius: 16px;
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
    gap: 16px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.greeting-bar::before {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
}

.greeting-bar::after {
    content: '';
    position: absolute;
    right: 60px;
    bottom: -60px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
}

.greet-text h2 {
    font-family: var(--font-head);
    font-size: 22px;
    color: #fff;
    margin-bottom: 4px;
}

.greet-text p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
}

.greet-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.greet-pill {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 12.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.greet-pill.urgent {
    background: rgba(239, 68, 68, 0.3);
    border-color: rgba(239, 68, 68, 0.5);
}

/* ─── TWO COL ─── */
.two-col {
    display: grid;
    grid-template-columns: 1fr 500px;
    gap: 18px;
    margin-bottom: 22px;
}

.three-col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
    margin-bottom: 22px;
}

/* ─── SECTION HEADER ─── */
.sh {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 8px;
}

.sh-title {
    font-family: var(--font-head);
    font-size: 17px;
    font-weight: 600;
    color: #0d1f3c;
}

.sh-sub {
    font-size: 11.5px;
    color: #2563eb;
    opacity: 0.7;
    margin-top: 2px;
}

.sh-link {
    font-size: 12.5px;
    color: #2563eb;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.sh-link:hover {
    color: #1d4ed8;
}

/* ─── EXAM CARDS ─── */
.exam-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exam-card {
    background: #fff;
    border: 1px solid rgba(59, 130, 246, 0.14);
    border-radius: 13px;
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.05);
    transition: all 0.22s;
    position: relative;
    overflow: hidden;
}

.exam-card:hover {
    transform: translateX(4px);
    box-shadow: 0 6px 22px rgba(37, 99, 235, 0.12);
    border-color: rgba(59, 130, 246, 0.32);
}

.exam-card.red {
    border-left: 4px solid #ef4444;
}

.exam-card.yellow {
    border-left: 4px solid #f59e0b;
}

.exam-card.blue {
    border-left: 4px solid #2563eb;
}

.exam-card.green {
    border-left: 4px solid #059669;
    opacity: 0.75;
}

.exam-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.ei-red {
    background: rgba(239, 68, 68, 0.1);
}

.ei-amber {
    background: rgba(245, 158, 11, 0.1);
}

.ei-blue {
    background: rgba(37, 99, 235, 0.1);
}

.ei-green {
    background: rgba(5, 150, 105, 0.1);
}

.exam-info {
    flex: 1;
    min-width: 0;
}

.exam-name {
    font-size: 14px;
    font-weight: 600;
    color: #0d1f3c;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.exam-meta-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.exam-meta {
    font-size: 11.5px;
    color: rgba(13, 31, 60, 0.55);
    display: flex;
    align-items: center;
    gap: 4px;
}

.exam-deadline {
    font-size: 11.5px;
    font-weight: 600;
    margin-top: 5px;
}

.dead-red {
    color: #ef4444;
}

.dead-amber {
    color: #f59e0b;
}

.dead-blue {
    color: #2563eb;
}

.dead-green {
    color: #059669;
}

.exam-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

.exam-score {
    font-family: var(--font-head);
    font-size: 22px;
    font-weight: 700;
}

.score-green {
    color: #059669;
}

.score-red {
    color: #ef4444;
}

/* ─── BADGE ─── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}

.b-blue {
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.b-green {
    background: rgba(5, 150, 105, 0.1);
    color: #059669;
    border: 1px solid rgba(5, 150, 105, 0.2);
}

.b-yellow {
    background: rgba(217, 119, 6, 0.1);
    color: #d97706;
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.b-orange {
    background: rgba(217, 55, 6, 0.1);
    color: #d94906;
    border: 1px solid rgba(217, 55, 6, 0.2);
}

.b-red {
    background: rgba(220, 38, 38, 0.08);
    color: #dc2626;
    border: 1px solid rgba(220, 38, 38, 0.15);
}

.b-purple {
    background: rgba(99, 102, 241, 0.08);
    color: #6366f1;
    border: 1px solid rgba(99, 102, 241, 0.15);
}

.b-grey {
    background: rgba(100, 116, 139, 0.1);
    color: #64748b;
    border: 1px solid rgba(100, 116, 139, 0.2);
}

/* ─── BUTTON ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: 9px;
    font-size: 12.5px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.4);
}

.btn-ghost {
    background: #fff;
    border: 1px solid rgba(59, 130, 246, 0.22);
    color: #2563eb;
}

.btn-ghost:hover {
    background: #eaf3ff;
}

.btn-sm {
    padding: 6px 13px;
    font-size: 12px;
}

.btn-disabled {
    background: #e2e8f0;
    color: #94a3b8;
    cursor: not-allowed;
    box-shadow: none;
}

/* ─── PROGRESS MINI ─── */
.prog-bar {
    height: 6px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 6px;
}

.prog-fill {
    height: 100%;
    border-radius: 3px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transition: width 0.5s ease;
}

.prog-fill.green {
    background: linear-gradient(90deg, #059669, #10b981);
}

.prog-fill.amber {
    background: linear-gradient(90deg, #d97706, #f59e0b);
}

.prog-fill.red {
    background: linear-gradient(90deg, #dc2626, #f87171);
}

/* ─── SCHEDULE CARD ─── */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sched-item {
    display: flex;
    gap: 12px;
    padding: 12px 14px;
    background: #f8fbff;
    border-radius: 10px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: background 0.18s;
}

.sched-item:hover {
    background: #eaf3ff;
}

.sched-time {
    font-size: 11px;
    font-weight: 600;
    color: #2563eb;
    min-width: 120px;
    padding-top: 1px;
    align-self: center;
}

.sched-dot {
    align-self: center;
}

.sched-info .name {
    font-size: 13px;
    font-weight: 500;
    color: #0d1f3c;
}

.sched-info .meta {
    font-size: 11px;
    color: rgba(13, 31, 60, 0.55);
    margin-top: 2px;
}

/* ─── MY RESULTS MINI ─── */
.result-mini-list {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.result-mini {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: #f8fbff;
    border-radius: 10px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: background 0.18s;
    cursor: pointer;
}

.result-mini:hover {
    background: #eaf3ff;
}

.rm-score {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-head);
    font-size: 14px;
    font-weight: 700;
    border: 2.5px solid;
    flex-shrink: 0;
}

.rm-score.pass {
    color: #059669;
    border-color: #059669;
    background: rgba(5, 150, 105, 0.07);
}

.rm-score.yellow {
    color: #dca826;
    border-color: #dca826;
    background: rgb(220, 172, 38, 0.06);
}

.rm-score.fail {
    color: #dc2626;
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.06);
}

.rm-info {
    flex: 1;
    min-width: 0;
}

.rm-name {
    font-size: 13px;
    font-weight: 500;
    color: #0d1f3c;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rm-date {
    font-size: 11px;
    color: rgba(13, 31, 60, 0.5);
    margin-top: 2px;
}

/* ═══════════════════════════════
     DOCUMENT SEARCH PAGE
  ═══════════════════════════════ */
.search-hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #3b82f6 100%);
    border-radius: 18px;
    padding: 36px 32px 32px;
    text-align: center;
    margin-bottom: 28px;
    position: relative;
    overflow: hidden;
}

.search-hero::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.search-hero::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -30px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
}

.sh-hero-title {
    font-family: var(--font-head);
    font-size: 26px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
    position: relative;
    z-index: 1;
}

.sh-hero-sub {
    font-size: 13.5px;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.doc-search-wrap {
    position: relative;
    max-width: 640px;
    margin: 0 auto;
    z-index: 1;
}

.doc-search-input {
    width: 100%;
    height: 52px;
    padding: 0 130px 0 50px;
    border-radius: 13px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.95);
    font-size: 15px;
    font-family: var(--font-body);
    color: #0d1f3c;
    outline: none;
    transition: all 0.2s;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.doc-search-input:focus {
    border-color: #fff;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), 0 0 0 4px rgba(255, 255, 255, 0.2);
}

.doc-search-input::placeholder {
    color: rgba(13, 31, 60, 0.4);
}

.doc-search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: #2563eb;
}

.doc-search-btn {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #fff;
    border: none;
    border-radius: 9px;
    padding: 9px 18px;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-body);
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.doc-search-btn:hover {
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.55);
}

.search-chips {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 14px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.search-chip {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.search-chip:hover {
    background: rgba(255, 255, 255, 0.28);
}

/* ─── DOC FILTER ─── */
.doc-filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    align-items: center;
}

.doc-filter-bar input {
    padding: 9px 14px;
    border-radius: 9px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    background: #fff;
    color: #0d1f3c;
    font-size: 13px;
    font-family: var(--font-body);
    outline: none;
    transition: all 0.2s;
    cursor: pointer;
}

.doc-filter-bar select {
    padding: 9px 14px;
    border-radius: 9px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    background: #fff;
    color: #0d1f3c;
    font-size: 13px;
    font-family: var(--font-body);
    outline: none;
    transition: all 0.2s;
    cursor: pointer;
}

.doc-filter-bar select:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.view-toggle {
    display: flex;
    background: #fff;
    border: 1px solid rgba(59, 130, 246, 0.18);
    border-radius: 9px;
    overflow: hidden;
    margin-left: auto;
}

.view-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    cursor: pointer;
    color: #2563eb;
    transition: all 0.2s;
}

.view-btn.active {
    background: #eaf3ff;
}

.view-btn:hover:not(.active) {
    background: #f5f9ff;
}

/* ─── DOC RESULTS ─── */
.doc-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.doc-results-count {
    font-size: 13px;
    color: rgba(13, 31, 60, 0.6);
}

.doc-results-count strong {
    color: #0d1f3c;
    font-weight: 600;
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 14px;
}

.doc-card {
    background: #fff;
    border: 1px solid rgba(59, 130, 246, 0.14);
    border-radius: 13px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.22s;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.05);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.doc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 13px 13px 0 0;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.doc-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.15);
    border-color: rgba(59, 130, 246, 0.32);
}

.doc-card-head {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.doc-file-icon {
    /* width: 44px; */
    height: 52px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    flex-shrink: 0;
    /* border: 1px solid; */
    font-size: 19px;
    padding-top: 6px;
}

.fi-pdf {
    /* background: rgba(220, 38, 38, 0.06); */
    /* border-color: rgba(220, 38, 38, 0.2); */
}

.fi-doc {
    background: rgba(37, 99, 235, 0.06);
    border-color: rgba(37, 99, 235, 0.18);
}

.fi-xls {
    background: rgba(5, 150, 105, 0.06);
    border-color: rgba(5, 150, 105, 0.18);
}

.fi-txt {
    background: rgba(100, 116, 139, 0.06);
    border-color: rgba(100, 116, 139, 0.18);
}

.fi-ext {
    font-size: 8px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-top: -2px;
}

.fi-ext.red {
    color: #dc2626;
}

.fi-ext.blue {
    color: #2563eb;
}

.fi-ext.green {
    color: #059669;
}

.fi-ext.grey {
    color: #64748b;
}

.doc-card-meta {
    flex: 1;
    min-width: 0;
}

.doc-card-name {
    font-size: 14px;
    font-weight: 600;
    color: #0d1f3c;
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-card-dept {
    font-size: 11.5px;
    color: #2563eb;
    opacity: 0.7;
}

.doc-card-desc {
    font-size: 12.5px;
    color: rgba(13, 31, 60, 0.6);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px solid rgba(59, 130, 246, 0.08);
    gap: 8px;
    flex-wrap: wrap;
}

.doc-card-info {
    font-size: 11px;
    color: rgba(13, 31, 60, 0.45);
    display: flex;
    align-items: center;
    gap: 5px;
}

.doc-card-actions {
    display: flex;
    gap: 6px;
}

.dc-btn {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    border: 1px solid rgba(59, 130, 246, 0.18);
    background: #f0f7ff;
    color: #2563eb;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.18s;
}

.dc-btn:hover {
    background: #dbeafe;
    border-color: #3b82f6;
}

/* ─── LIST VIEW ─── */
.doc-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.doc-list-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: #fff;
    border-bottom: 1px solid rgba(59, 130, 246, 0.07);
    transition: background 0.15s;
    cursor: pointer;
}

.doc-list-item:first-child {
    border-radius: 12px 12px 0 0;
}

.doc-list-item:last-child {
    border-bottom: none;
    border-radius: 0 0 12px 12px;
}

.doc-list-item:hover {
    background: #f5f9ff;
}

.dl-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.dl-info {
    flex: 1;
    min-width: 0;
}

.dl-name {
    font-size: 13.5px;
    font-weight: 500;
    color: #0d1f3c;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dl-sub {
    font-size: 11.5px;
    color: rgba(13, 31, 60, 0.5);
    margin-top: 2px;
}

.dl-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* ─── EMPTY STATE ─── */
.empty-state {
    text-align: center;
    padding: 60px 24px;
}

.empty-icon {
    font-size: 52px;
    margin-bottom: 14px;
    opacity: 0.3;
}

.empty-text {
    font-size: 14px;
    color: rgba(13, 31, 60, 0.5);
}

.exam-info-block {
    background: #f0f7ff;
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 20px;
}

.eib-title {
    font-family: var(--font-head);
    font-size: 16px;
    color: #0d1f3c;
    margin-bottom: 12px;
}

.eib-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.eib-item .k {
    font-size: 11px;
    color: #2563eb;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.eib-item .v {
    font-size: 13.5px;
    font-weight: 500;
    color: #0d1f3c;
}

.rule-list {
    margin-bottom: 22px;
}

.rule-list h4 {
    font-size: 13px;
    font-weight: 600;
    color: #0d1f3c;
    margin-bottom: 10px;
}

.rule-item {
    display: flex;
    gap: 9px;
    margin-bottom: 8px;
    font-size: 13px;
    color: rgba(13, 31, 60, 0.7);
    line-height: 1.5;
}

.rule-item::before {
    content: '•';
    color: #2563eb;
    font-weight: 700;
    flex-shrink: 0;
}

.progress-cell {
    display: flex;
    align-items: center;
    gap: 8px;
}

.prog-track {
    height: 7px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 4px;
    overflow: hidden;
    width: 80px;
}

.prog-fill {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.prog-fill.low {
    background: linear-gradient(90deg, #d97706, #f59e0b);
}

.prog-fill.fail {
    background: linear-gradient(90deg, #dc2626, #f87171);
}

.prog-pct {
    font-size: 12px;
    font-weight: 600;
    color: #0d1f3c;
    min-width: 34px;
}


/* ── SCORE CIRCLE (inline) ── */
.score-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-head);
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
    border: 2.5px solid;
}

.score-pass {
    color: #059669;
    border-color: #059669;
    background: rgba(5, 150, 105, 0.07);
}

.score-low {
    color: #d97706;
    border-color: #d97706;
    background: rgba(217, 119, 6, 0.07);
}

.score-fail {
    color: #dc2626;
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.06);
}

.col-main {
    color: #0d1f3c;
    font-weight: 500;
}

.col-main small {
    display: block;
    font-size: 11px;
    color: #2563eb;
    opacity: 0.62;
    font-weight: 400;
    margin-top: 2px;
}

.d-none{
    display: none;
}

/* ── RESPONSIVE ── */

/* Tablet: 769px – 1100px */
@media (max-width: 1100px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }

    .content {
        padding: 22px 20px 36px;
    }
}

/* Mobile: ≤ 768px */
@media (max-width: 768px) {

    /* Sidebar slide-out */
    .sidebar {
        transform: translateX(-100%);
        width: 240px;
        z-index: 200;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.open {
        display: block;
    }

    /* Main area fills full width */
    .main {
        margin-left: 0;
        min-width: 0;
        width: 100%;
    }

    /* Header */
    .header {
        padding: 0 14px;
        gap: 10px;
        height: 56px;
    }

    .burger {
        display: flex;
    }

    .page-title {
        font-size: 17px;
    }

    .breadcrumb {
        display: none;
    }

    /* Hide search on mobile header, show icon only */
    .header-actions .search-box {
        display: none;
    }

    .header-actions {
        gap: 6px;
    }

    /* Content area */
    .content {
        padding: 16px 12px 90px;
        /* bottom pad for mobile nav */
        min-width: 0;
        overflow-x: hidden;
    }

    /* Stats: 2 columns */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 18px;
    }

    .stats-grid-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 18px;
    }

    .stats-grid-5 {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 18px;
    }

    .stat-card {
        padding: 14px 14px 12px;
    }

    .stat-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
        margin-bottom: 10px;
    }

    .stat-value {
        font-size: 22px;
    }

    .stat-label {
        font-size: 11px;
    }

    .stat-delta {
        font-size: 10px;
    }

    /* Section header stacks on small screens */
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .section-header>div:last-child {
        width: 100%;
    }

    .section-header .btn {
        width: 100%;
        justify-content: center;
    }

    /* Tables: horizontal scroll */
    .table-card {
        border-radius: 10px;
    }

    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 500px;
    }

    th,
    td {
        padding: 10px 12px;
        font-size: 12px;
    }

    .col-name small {
        display: none;
    }

    /* Pagination compact */
    .pagination {
        flex-direction: column;
        gap: 8px;
        align-items: center;
        padding: 12px;
    }

    .page-info {
        font-size: 11px;
    }

    /* Filter tabs: scrollable row, no wrap */
    .filter-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 4px;
        gap: 4px;
        scrollbar-width: none;
    }

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

    .filter-tab {
        white-space: nowrap;
        padding: 6px 13px;
        font-size: 12px;
        flex-shrink: 0;
    }

    /* Question cards */
    .q-card {
        padding: 14px;
    }

    .q-options {
        grid-template-columns: 1fr;
    }

    .q-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .q-meta {
        flex-wrap: wrap;
    }



    /* Test grid → single column */
    .test-grid {
        grid-template-columns: 1fr;
    }

    .test-card {
        padding: 16px;
    }

    /* Modal full-screen on mobile */
    .modal-overlay {
        padding: 0;
        align-items: flex-end;
    }

    .modal {
        border-radius: 18px 18px 0 0;
        max-width: 100%;
        width: 100%;
        padding: 22px 18px 30px;
        max-height: 92vh;
        overflow-y: auto;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-row-two {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .two-col {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .modal-footer {
        flex-wrap: wrap;
    }

    .modal-footer .btn {
        flex: 1;
        justify-content: center;
        min-width: 100px;
    }

    /* Row actions */
    .row-actions {
        gap: 4px;
    }

    .act-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    /* Toast */
    .toast {
        left: 12px;
        right: 12px;
        bottom: 80px;
        max-width: none;
        font-size: 13px;
    }

}

/* Small phones: ≤ 480px */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .stats-grid-3 {
        grid-template-columns: repeat(1, 1fr);
        gap: 8px;
    }

    .stats-grid-5 {
        grid-template-columns: repeat(1, 1fr);
        gap: 8px;
    }


    .stat-card {
        padding: 12px 10px;
    }

    .stat-value {
        font-size: 20px;
    }

    .header {
        height: 52px;
    }

    .page-title {
        font-size: 15px;
    }

    .icon-btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .btn {
        padding: 8px 14px;
        font-size: 12.5px;
    }

    th,
    td {
        padding: 9px 10px;
        font-size: 11.5px;
    }

    .q-card {
        padding: 12px;
        border-radius: 10px;
    }

    .q-text {
        font-size: 13px;
    }

    .q-opt {
        font-size: 12px;
        padding: 6px 10px;
    }

    .section-title {
        font-size: 16px;
    }
}