/* ==========================================================================
   LARVIZ SECURE PROCTORING PORTAL - VERCEL DESIGN SYSTEM STYLES
   ========================================================================== */

/* 1. Theme CSS Variables */
:root {
    --bg: #FFFFFF;
    --bg-2: #FAFAFA;
    --bg-3: #F2F2F2;
    --text: #000000;
    --text-2: #666666;
    --text-3: #999999;
    --border: #EAEAEA;
    --border-strong: #000000;
    --nav-blur: rgba(255, 255, 255, 0.8);
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    
    --accent: #0070F3; /* Vercel Accent Blue */
    --accent-success: #10b981;
    --accent-error: #EE0000;
    --accent-warning: #F5A623;
    
    --font-sans: 'Figtree', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Fira Mono', Menlo, Monaco, Consolas, monospace;
    
    --transition-fast: 150ms ease;
    --transition-std: 200ms ease;
}

body.dark {
    --bg: #000000;
    --bg-2: #111111;
    --bg-3: #1A1A1A;
    --text: #FFFFFF;
    --text-2: #888888;
    --text-3: #555555;
    --border: #333333;
    --border-strong: #FFFFFF;
    --nav-blur: rgba(0, 0, 0, 0.7);
    --shadow: 0 8px 30px rgba(255, 255, 255, 0.04);
}

/* 2. Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

/* Iconic Vercel Grid Pattern Background */
body.grid-bg-faded {
    background-image:
      radial-gradient(ellipse at center, transparent 35%, var(--bg) 80%),
      linear-gradient(var(--border) 1px, transparent 1px),
      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: auto, 20px 20px, 20px 20px;
    background-attachment: fixed;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 48px 24px;
    z-index: 10;
    position: relative;
}

/* 3. Sticky Navigation Bar */
.navbar {
    position: sticky;
    top: 0;
    height: 64px;
    background: var(--nav-blur);
    backdrop-filter: blur(10px) saturate(180%);
    -webkit-backdrop-filter: blur(10px) saturate(180%);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    margin-bottom: 32px;
    z-index: 100;
    width: calc(100% + 48px);
    margin-left: -24px;
}

.nav-logo {
    color: var(--text);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-accent {
    font-size: 1.3rem;
    color: var(--text);
}

/* Theme-aware dual logo switching */
.logo-theme-light { display: block; }
.logo-theme-dark  { display: none;  }
body.dark .logo-theme-light { display: none;  }
body.dark .logo-theme-dark  { display: block; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-theme {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.btn-theme:hover {
    border-color: var(--border-strong);
    background: var(--bg-3);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--text-2);
}

.badge-dot {
    font-size: 0.6rem;
}

/* 4. Form Controls */
.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.input {
    width: 100%;
    height: 40px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0 12px;
    font-size: 0.88rem;
    color: var(--text);
    font-family: var(--font-sans);
    transition: var(--transition-fast);
}

.input::placeholder {
    color: var(--text-3);
}

.input:focus {
    outline: none;
    border-color: var(--border-strong);
}

.input:disabled {
    background: var(--bg-3);
    color: var(--text-2);
    cursor: not-allowed;
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.password-wrapper .input {
    padding-right: 40px;
}

.password-toggle {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-3);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.password-toggle:hover {
    color: var(--text);
}

/* 5. Vercel Style Cards */
.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: box-shadow var(--transition-std), border-color var(--transition-std);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}

.card-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header p {
    font-size: 0.88rem;
    margin-top: 4px;
}

.card-footer {
    padding: 16px 24px;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
}

/* 6. Buttons */
.btn {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.88rem;
    height: 38px;
    padding: 0 16px;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--text); /* True Black in light, True White in dark */
    color: var(--bg);
    border-color: var(--text);
}

.btn-primary:hover:not(.disabled):not(:disabled) {
    opacity: 0.85;
}

.btn-secondary {
    background: var(--bg);
    color: var(--text-2);
    border-color: var(--border);
}

.btn-secondary:hover:not(.disabled):not(:disabled) {
    border-color: var(--border-strong);
    color: var(--text);
}

.btn-large {
    height: 48px;
    padding: 0 24px;
    font-size: 0.95rem;
}

.btn-small {
    height: 30px;
    padding: 0 12px;
    font-size: 0.78rem;
    border-radius: 4px;
}

.btn-full {
    width: 100%;
}

.btn.disabled, .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 7. Screens toggle */
.screen {
    display: none;
    flex-grow: 1;
    animation: fadeInUp 300ms ease forwards;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

/* Auth Cards & Tabs */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.auth-tab-btn {
    flex: 1;
    height: 48px;
    background: transparent;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-2);
    cursor: pointer;
    transition: var(--transition-fast);
}

.auth-tab-btn:hover {
    color: var(--text);
}

.auth-tab-btn.active {
    color: var(--text);
    border-bottom: 2px solid var(--border-strong);
}

.error-text {
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Setup Grid */
.setup-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
    padding: 32px;
}

/* 8. Premium Auth Cards */
.auth-card {
    max-width: 440px;
    margin: 8vh auto;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.04), 0 2px 10px rgba(0, 0, 0, 0.02);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    overflow: hidden;
    animation: fadeInUp 400ms ease forwards;
}

body.dark .auth-card {
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    background: rgba(10, 10, 10, 0.85);
}

.auth-header {
    text-align: center;
    padding: 40px 32px 24px 32px;
}

.auth-header h2 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    margin-bottom: 8px;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-header p {
    font-size: 0.95rem;
    color: var(--text-2);
}

.auth-body {
    padding: 0 32px 40px 32px;
}

.webcam-preview-container {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 6px;
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border);
    margin-bottom: 16px;
}

.webcam-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

.webcam-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.85);
    color: #FFF;
    font-size: 0.85rem;
}

.webcam-overlay i {
    font-size: 1.8rem;
    color: var(--accent-error);
    margin-bottom: 4px;
}

.webcam-scanner {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: scanning 3s linear infinite;
    pointer-events: none;
}

.checklist {
    margin-bottom: 20px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.check-icon {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
}

.check-text {
    color: var(--text-2);
    font-weight: 500;
}

/* ==========================================================================
   ASSESSMENT PANEL LAYOUT
   ========================================================================== */
.assessment-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 24px;
    align-items: start;
    flex-grow: 1;
}

.exam-panel {
    display: flex;
    flex-direction: column;
}

.question-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.badge {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-2);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    margin-right: 8px;
}

.badge-accent {
    background: rgba(0, 112, 243, 0.08);
    border-color: rgba(0, 112, 243, 0.2);
    color: var(--accent);
}

.timer-box {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
    background: var(--bg-2);
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background: var(--bg-3);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 24px;
}

.progress-bar-fill {
    height: 100%;
    width: 20%;
    background: var(--text);
    transition: var(--transition-std);
}

.question-body h3 {
    font-size: 1.2rem;
    line-height: 1.4;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.option-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    text-align: left;
    transition: var(--transition-fast);
}

.option-btn:hover {
    background: var(--bg-2);
    border-color: var(--border-strong);
}

.option-btn.selected {
    background: var(--bg-2);
    border-color: var(--border-strong);
    font-weight: 600;
}

.option-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 4px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    font-weight: 700;
    font-size: 0.78rem;
    color: var(--text-2);
}

.option-btn.selected .option-letter {
    background: var(--text);
    color: var(--bg);
    border-color: var(--text);
}

.question-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

/* Sidebar Proctor Feed */
.proctor-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card-header-compact {
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}

.card-header-compact h4 {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-2);
    display: flex;
    align-items: center;
    gap: 6px;
}

.live-stream-wrapper {
    position: relative;
    aspect-ratio: 4/3;
    background: #000;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 12px;
}

.live-stream-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

.scanner-line {
    display: none;
}

.detection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    padding: 8px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.bracket {
    position: absolute;
    width: 12px;
    height: 12px;
    border: 1.5px solid var(--border-strong);
}

.top-left { top: 8px; left: 8px; border-right: none; border-bottom: none; }
.top-right { top: 8px; right: 8px; border-left: none; border-bottom: none; }
.bottom-left { bottom: 8px; left: 8px; border-right: none; border-top: none; }
.bottom-right { bottom: 8px; right: 8px; border-left: none; border-top: none; }

.detection-status-text {
    background: rgba(0, 0, 0, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.62rem;
    font-weight: 700;
    color: #FFF;
    display: flex;
    align-items: center;
    gap: 4px;
    align-self: center;
}

.proctor-metrics {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.metric {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}

.metric-label {
    color: var(--text-2);
}

.metric-value {
    font-weight: 600;
}

/* Incident logs */
.log-entries {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 4px;
}

.log-entry {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    line-height: 1.4;
    padding: 6px 8px;
    border-radius: 4px;
    background: var(--bg-3);
    border-left: 2px solid var(--text-3);
    color: var(--text-2);
}

.log-time {
    font-weight: 600;
    margin-right: 4px;
}

.log-success { border-left-color: var(--accent-success); }
.log-warning { border-left-color: var(--accent-warning); color: var(--text); background: rgba(245, 166, 35, 0.05); }
.log-danger { border-left-color: var(--accent-error); color: var(--text); background: rgba(238, 0, 0, 0.05); }

.warnings-indicator {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--text-2);
}

.warning-dots {
    display: flex;
    gap: 4px;
}

.warning-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bg-3);
    border: 1px solid var(--border);
}

.warning-dots .dot.active {
    background: var(--accent-error);
    border-color: var(--accent-error);
}

/* ==========================================================================
   Results & Info rows
   ========================================================================== */
.success-info-panel {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
}

.info-row {
    display: flex;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.info-row:last-of-type {
    margin-bottom: 0;
}

.info-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--text);
    color: var(--bg);
    border-radius: 50%;
    font-weight: bold;
    flex-shrink: 0;
    font-size: 0.8rem;
}

/* ==========================================================================
   MODALS & OVERLAYS
   ========================================================================== */
.modal-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

body.dark .modal-backdrop {
    background: rgba(0, 0, 0, 0.85);
}

.modal-backdrop.active {
    display: flex;
}

.modal {
    max-width: 460px;
    width: 90%;
    padding: 24px;
    text-align: center;
    border-radius: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    animation: fadeInUp 200ms ease forwards;
}

.warning-count-box {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 4px;
    background: rgba(238, 0, 0, 0.08);
    border: 1px solid rgba(238, 0, 0, 0.15);
    color: var(--accent-error);
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 20px;
}

/* ==========================================================================
   ADMIN PORTAL LAYOUT
   ========================================================================== */
.admin-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    align-items: start;
    width: 100%;
}

.admin-sidebar {
    padding: 10px;
}

.admin-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.admin-menu-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 12px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-2);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.82rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.admin-menu-btn:hover {
    background: var(--bg-3);
    color: var(--text);
}

.admin-menu-btn.active {
    background: var(--bg-3);
    color: var(--text);
    font-weight: 600;
}

.btn-label-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge-count {
    background: var(--accent-error);
    color: white;
    padding: 1px 6px;
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 700;
}

.admin-content-panel {
    display: flex;
    flex-direction: column;
}

.admin-tab-content {
    display: none;
}

.admin-tab-content.active {
    display: block;
}

.admin-data-card {
    padding: 24px;
}

.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    margin-top: 8px;
}

.admin-table th, .admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
}

.admin-table th {
    font-weight: 600;
    color: var(--text-2);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-table tbody tr:hover {
    background: var(--bg-2);
}

/* Appeals List */
.review-requests-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.review-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.review-meta h4 {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.review-meta p {
    font-size: 0.78rem;
    color: var(--text-2);
    margin-bottom: 8px;
}

.review-message {
    font-size: 0.82rem;
    background: var(--bg-3);
    border-left: 2.5px solid var(--border-strong);
    padding: 8px 12px;
    border-radius: 0 4px 4px 0;
    line-height: 1.4;
}

/* Detail Modal */
.admin-detail-modal-card {
    max-width: 640px;
    text-align: left;
}

.modal-header-compact {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.modal-header-compact h3 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.close-modal-btn {
    background: transparent;
    border: none;
    color: var(--text-2);
    font-size: 1.3rem;
    cursor: pointer;
}

.close-modal-btn:hover {
    color: var(--text);
}

.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 20px;
}

.lbl {
    font-size: 0.65rem;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.val {
    font-size: 0.85rem;
    font-weight: 600;
}

.timeline-container {
    border-left: 1.5px solid var(--border);
    padding-left: 16px;
    margin-left: 6px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 200px;
    overflow-y: auto;
}

.snapshot-wrapper {
    margin-top: 6px;
    position: relative;
    max-width: 120px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
    cursor: zoom-in;
}

.snapshot-thumb {
    width: 100%;
    display: block;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: var(--transition-fast);
}

.snapshot-wrapper.expanded {
    max-width: 100%;
    cursor: zoom-out;
}

/* Utilities */
.hide { display: none !important; }
.text-success { color: var(--accent-success) !important; }
.text-warning { color: var(--accent-warning) !important; }
.text-danger { color: var(--accent-error) !important; }
.text-accent { color: var(--accent) !important; }
.text-secondary { color: var(--text-2) !important; }
.text-muted { color: var(--text-3) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scanning {
    0% { top: 0%; }
    50% { top: 100%; }
    100% { top: 0%; }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .setup-grid { grid-template-columns: 1fr; }
    .assessment-layout { grid-template-columns: 1fr; }
    .admin-layout { grid-template-columns: 1fr; gap: 16px; }
    .navbar { padding: 0 12px; }
    .app-container { padding: 0 12px 64px 12px; }
    
    /* Horizontal scrollable sidebar tabs for space efficiency */
    .admin-sidebar {
        padding: 8px !important;
        margin-bottom: 8px;
    }
    .admin-menu {
        flex-direction: row !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
        gap: 8px !important;
        padding-bottom: 6px;
    }
    .admin-menu-btn {
        width: auto !important;
        white-space: nowrap !important;
        flex-shrink: 0;
        padding: 8px 12px !important;
        font-size: 0.78rem !important;
    }
    
    /* Stack forms and grids */
    .profile-grid, [style*="grid-template-columns: 1fr 1fr"], [style*="grid-template-columns: 1.1fr 0.9fr"] {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }
    
    /* Scale down card padding */
    .admin-data-card {
        padding: 16px !important;
    }
    
    /* Table column responsiveness & scrolling */
    .table-responsive {
        margin: 0 -8px;
        width: calc(100% + 16px);
    }
    
    /* Flex Header wrapping */
    .flex-header {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 12px !important;
        text-align: left;
    }
    .flex-header h3 {
        margin-bottom: 0;
    }
    .flex-header .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Modals formatting */
    .modal {
        width: 95% !important;
        padding: 16px !important;
    }
    
    /* System Footer adaptation */
    footer {
        padding: 6px 12px !important;
        font-size: 0.62rem !important;
    }
}

/* 14. Interactive Logo Switcher Styles */
.logo-switcher {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.nav-logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--border);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: #FFF;
    display: block;
}

.logo-switcher:hover .nav-logo-icon {
    transform: scale(1.08);
    border-color: var(--border-strong);
    box-shadow: 0 0 10px rgba(0, 112, 243, 0.25);
}

.logo-dropdown {
    display: none;
    position: absolute;
    top: 48px;
    left: 0;
    width: 260px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 8px;
    flex-direction: column;
    gap: 4px;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    background-color: rgba(var(--bg), 0.85);
    animation: fadeInUp 200ms ease forwards;
}

body.dark .logo-dropdown {
    background-color: rgba(17, 17, 17, 0.9);
}

.logo-dropdown.show {
    display: flex;
}

.logo-dropdown-header {
    font-size: 0.68rem;
    color: var(--text-2);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}

.logo-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: 6px;
    transition: background-color var(--transition-fast);
    cursor: pointer;
}

.logo-dropdown-item img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: #FFF;
    object-fit: cover;
}

.logo-dropdown-item span {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-2);
}

.logo-dropdown-item:hover {
    background: var(--bg-3);
}

.logo-dropdown-item:hover span {
    color: var(--text);
}

.logo-dropdown-item.active {
    background: rgba(0, 112, 243, 0.08);
}

.logo-dropdown-item.active span {
    color: var(--accent);
    font-weight: 600;
}

.logo-dropdown-item.active img {
    border-color: var(--accent);
}

.logo-text {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
}

/* VERCEL Aesthetic Additions */
.vercel-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 80px 24px 64px 24px;
    max-width: 800px;
    margin: 0 auto;
}

.main-title {
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -0.06em;
    line-height: 1.05;
    margin-bottom: 24px;
    color: var(--text);
    background: linear-gradient(180deg, var(--text) 60%, var(--text-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-subtitle {
    font-size: 1.25rem;
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 36px;
    max-width: 640px;
    letter-spacing: -0.02em;
}

.btn-vercel-black {
    background-color: var(--text);
    color: var(--bg);
    border: 1px solid var(--text);
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
}

.btn-vercel-black:hover {
    background-color: transparent;
    color: var(--text);
}

.btn-vercel-white {
    background-color: transparent;
    color: var(--text-2);
    border: 1px solid var(--border);
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: border-color var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
}

.btn-vercel-white:hover {
    border-color: var(--text);
    color: var(--text);
}

/* Grid Separator Section */
.vercel-section-divider {
    border-top: 1px solid var(--border);
    margin: 48px 0;
    position: relative;
}

/* Tabs switcher like Sweep's list */
.vercel-tabs-nav {
    display: flex;
    justify-content: center;
    gap: 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
    padding-bottom: 12px;
}

.vercel-nav-item {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-2);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    padding-bottom: 12px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.vercel-nav-item:hover {
    color: var(--text);
}

.vercel-nav-item.active {
    color: var(--text);
}

.vercel-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -13px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--text);
}

.vercel-split-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 80px;
}

@media (max-width: 900px) {
    .vercel-split-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-card {
    padding: 20px;
    border-left: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    border-radius: 0 6px 6px 0;
}

.feature-card:hover {
    background-color: var(--bg-2);
}

.feature-card.active {
    border-left-color: var(--text);
    background-color: var(--bg-2);
}

.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.feature-card p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.5;
}

/* Sweep Code Editor Mockup style */
.mock-editor {
    background-color: #0d0e11;
    border: 1px solid #1f242c;
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: #c9d1d9;
}

body.light .mock-editor {
    background-color: #f6f8fa;
    border-color: #d0d7de;
    color: #24292f;
    box-shadow: var(--shadow);
}

.editor-tabs {
    display: flex;
    background-color: #161a22;
    border-bottom: 1px solid #1f242c;
    padding: 0 8px;
}

body.light .editor-tabs {
    background-color: #eaeef2;
    border-bottom-color: #d0d7de;
}

.editor-tab {
    padding: 10px 16px;
    font-size: 0.78rem;
    color: #8b949e;
    border-right: 1px solid #1f242c;
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 8px;
}

body.light .editor-tab {
    color: #57606a;
    border-right-color: #d0d7de;
}

.editor-tab.active {
    background-color: #0d0e11;
    color: #f0f6fc;
    font-weight: 600;
}

body.light .editor-tab.active {
    background-color: #f6f8fa;
    color: #24292f;
}

.editor-body {
    padding: 24px;
    line-height: 1.6;
    overflow-x: auto;
}

/* Compliance Card styling */
.compliance-panel {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    background: var(--bg-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 64px;
    gap: 24px;
}

@media (max-width: 768px) {
    .compliance-panel {
        flex-direction: column;
        text-align: center;
    }
}

.compliance-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

@media (max-width: 768px) {
    .compliance-info {
        flex-direction: column;
    }
}

.compliance-info i {
    font-size: 2rem;
    color: var(--text-2);
}

.compliance-text h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text);
}

.compliance-text p {
    font-size: 0.85rem;
    color: var(--text-2);
}

/* FAQ Accordion Styling */
.faq-section {
    max-width: 800px;
    margin: 0 auto 80px auto;
}

.faq-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text);
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
    cursor: pointer;
}

.faq-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease, margin-top 300ms ease;
    color: var(--text-2);
    font-size: 0.92rem;
    line-height: 1.5;
}

.faq-item.active .faq-content {
    max-height: 200px;
    margin-top: 12px;
}

.faq-trigger i {
    transition: transform 200ms ease;
    color: var(--text-3);
}

.faq-item.active .faq-trigger i {
    transform: rotate(180deg);
}

/* Custom styles for grid layout values */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    background-color: var(--bg);
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--text);
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   LARVIZ PREMIUM DESIGN SYSTEM ENHANCEMENTS & OVERRIDES
   ========================================================================== */

/* Modern Scrollbar Improvements */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 99px;
    border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-3);
}

/* Background Glowing Blobs */
body.grid-bg-faded::before {
    content: '';
    position: fixed;
    top: -150px;
    right: -150px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 112, 243, 0.08) 0%, rgba(0, 112, 243, 0) 70%);
    z-index: -1;
    pointer-events: none;
    transition: background var(--transition-fast);
}
body.dark.grid-bg-faded::before {
    background: radial-gradient(circle, rgba(0, 112, 243, 0.15) 0%, rgba(0, 112, 243, 0) 70%);
}

body.grid-bg-faded::after {
    content: '';
    position: fixed;
    bottom: -150px;
    left: -150px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0) 70%);
    z-index: -1;
    pointer-events: none;
    transition: background var(--transition-fast);
}
body.dark.grid-bg-faded::after {
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0) 70%);
}

/* Premium Card Upgrades */
.card {
    transition: transform var(--transition-std), box-shadow var(--transition-std), border-color var(--transition-std);
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--border-strong);
}

/* Switch Toggle Styling for Proctoring Settings Checkboxes */
.admin-tab-content input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 40px;
    height: 22px;
    background-color: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 20px;
    position: relative;
    outline: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
    flex-shrink: 0;
}
.admin-tab-content input[type="checkbox"]::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--text-2);
    top: 2px;
    left: 2px;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}
.admin-tab-content input[type="checkbox"]:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}
.admin-tab-content input[type="checkbox"]:checked::after {
    transform: translateX(18px);
    background-color: #FFFFFF;
}

/* Sidebar Button Active Glowing Highlights */
.admin-menu-btn {
    border-left: 3px solid transparent;
    padding-left: 9px;
    transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
}
.admin-menu-btn:hover {
    padding-left: 14px;
}
.admin-menu-btn.active {
    border-left-color: var(--accent);
    background: var(--bg-3);
    color: var(--text);
    padding-left: 14px;
}

/* Glowing Animations for Live Badges */
@keyframes compliance-pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
@keyframes compliance-pulse-red {
    0% { box-shadow: 0 0 0 0 rgba(238, 0, 0, 0.4); }
    70% { box-shadow: 0 0 0 6px rgba(238, 0, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(238, 0, 0, 0); }
}
.badge {
    position: relative;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 10px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid transparent;
}
.badge i {
    font-size: 0.68rem;
}
.badge-dot-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    display: inline-block;
}
tbody tr td span.badge[style*="accent-success"] {
    animation: compliance-pulse-green 2s infinite;
}
tbody tr td span.badge[style*="accent-error"] {
    animation: compliance-pulse-red 2s infinite;
}

/* Glassmorphism Navigation Bar Header */
.navbar {
    background: var(--nav-blur) !important;
    backdrop-filter: blur(12px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(12px) saturate(180%) !important;
    border-bottom: 1px solid var(--border) !important;
}

/* Sleek Tables inside Cards */
.admin-table {
    border-collapse: separate;
    border-spacing: 0;
    width: 100%;
}
.admin-table th {
    background: var(--bg-2);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-2);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
}
.admin-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-fast);
}
.admin-table tbody tr:hover td {
    background-color: var(--bg-2);
}
.admin-table tbody tr:last-child td {
    border-bottom: none;
}