/* CCISO Training Platform - Cybersecurity Theme */

:root {
    --bg-primary: #060b1a;
    --bg-secondary: #0a0e27;
    --bg-card: rgba(15, 23, 55, 0.8);
    --bg-card-hover: rgba(20, 30, 70, 0.9);
    --accent-cyan: #00d4ff;
    --accent-cyan-dim: rgba(0, 212, 255, 0.15);
    --accent-green: #00ff88;
    --accent-green-dim: rgba(0, 255, 136, 0.15);
    --accent-red: #ff3366;
    --accent-red-dim: rgba(255, 51, 102, 0.15);
    --accent-yellow: #ffaa00;
    --accent-yellow-dim: rgba(255, 170, 0, 0.15);
    --accent-purple: #a855f7;
    --text-primary: #e8eaf0;
    --text-secondary: #8b92a8;
    --text-muted: #5a6178;
    --border-color: rgba(0, 212, 255, 0.12);
    --border-glow: rgba(0, 212, 255, 0.3);
    --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.15);
    --glow-green: 0 0 20px rgba(0, 255, 136, 0.15);
    --glow-red: 0 0 20px rgba(255, 51, 102, 0.15);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Grid Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Navbar */
.navbar-cyber {
    background: rgba(6, 11, 26, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
    z-index: 1000;
}

.navbar-cyber .navbar-brand {
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--accent-cyan) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.navbar-cyber .navbar-brand .shield-icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-cyan-dim);
    border: 1px solid var(--accent-cyan);
    border-radius: 6px;
    font-size: 0.85rem;
}

.navbar-cyber .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar-cyber .nav-link:hover,
.navbar-cyber .nav-link.active {
    color: var(--accent-cyan) !important;
    background: var(--accent-cyan-dim);
}

.navbar-cyber .navbar-toggler {
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.lang-switch {
    display: inline-flex;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 2px;
}

.lang-switch a {
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: 4px;
    transition: var(--transition);
}

.lang-switch a.active,
.lang-switch a:hover {
    background: var(--accent-cyan-dim);
    color: var(--accent-cyan);
}

/* Cards */
.card-cyber {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    overflow: hidden;
}

.card-cyber:hover {
    border-color: var(--border-glow);
    box-shadow: var(--glow-cyan);
    background: var(--bg-card-hover);
}

.card-cyber .card-header {
    background: rgba(0, 212, 255, 0.05);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-cyber .card-body {
    padding: 1.25rem;
}

/* Stat Cards */
.stat-card {
    text-align: center;
    padding: 1.5rem;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card.accent-cyan .stat-value { color: var(--accent-cyan); }
.stat-card.accent-green .stat-value { color: var(--accent-green); }
.stat-card.accent-red .stat-value { color: var(--accent-red); }
.stat-card.accent-yellow .stat-value { color: var(--accent-yellow); }
.stat-card.accent-purple .stat-value { color: var(--accent-purple); }

/* Buttons */
.btn-cyber {
    background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
    color: var(--bg-primary) !important;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.5rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-cyber:hover {
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.4);
    transform: translateY(-1px);
    color: var(--bg-primary) !important;
}

.btn-cyber-outline {
    background: transparent;
    color: var(--accent-cyan) !important;
    border: 1px solid var(--accent-cyan);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-cyber-outline:hover {
    background: var(--accent-cyan-dim);
    box-shadow: var(--glow-cyan);
    color: var(--accent-cyan) !important;
}

.btn-cyber-green {
    background: linear-gradient(135deg, var(--accent-green), #00cc6a);
    color: var(--bg-primary) !important;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.5rem;
    transition: var(--transition);
    text-decoration: none;
}

.btn-cyber-green:hover {
    box-shadow: var(--glow-green);
    transform: translateY(-1px);
    color: var(--bg-primary) !important;
}

.btn-cyber-red {
    background: linear-gradient(135deg, var(--accent-red), #cc2255);
    color: #fff !important;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.5rem;
    transition: var(--transition);
    text-decoration: none;
}

.btn-cyber-red:hover {
    box-shadow: var(--glow-red);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.85rem;
}

/* Forms */
.form-cyber .form-control,
.form-cyber .form-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.65rem 1rem;
    transition: var(--transition);
}

.form-cyber .form-control:focus,
.form-cyber .form-select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px var(--accent-cyan-dim);
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-cyber .form-control::placeholder {
    color: var(--text-muted);
}

.form-cyber .form-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.form-cyber .form-check-input {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

.form-cyber .form-check-input:checked {
    background-color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

/* Tables */
.table-cyber {
    color: var(--text-primary);
}

.table-cyber thead th {
    background: rgba(0, 212, 255, 0.05);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1rem;
}

.table-cyber tbody td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    padding: 0.75rem 1rem;
    vertical-align: middle;
}

.table-cyber tbody tr:hover {
    background: rgba(0, 212, 255, 0.03);
}

/* Badges */
.badge-cyber {
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-cyan {
    background: var(--accent-cyan-dim);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.badge-green {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.badge-red {
    background: var(--accent-red-dim);
    color: var(--accent-red);
    border: 1px solid rgba(255, 51, 102, 0.2);
}

.badge-yellow {
    background: var(--accent-yellow-dim);
    color: var(--accent-yellow);
    border: 1px solid rgba(255, 170, 0, 0.2);
}

/* Progress Bars */
.progress-cyber {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-cyber .progress-bar {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green));
    border-radius: 4px;
    transition: width 0.6s ease;
}

.progress-cyber .progress-bar.low {
    background: linear-gradient(90deg, var(--accent-red), var(--accent-yellow));
}

.progress-cyber .progress-bar.medium {
    background: linear-gradient(90deg, var(--accent-yellow), var(--accent-cyan));
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 6rem 0 4rem;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 140%;
    height: 200%;
    background: radial-gradient(ellipse at 50% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

/* Domain Cards */
.domain-card {
    padding: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.domain-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.domain-info h6 {
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.domain-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Exam Interface */
.exam-timer {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    text-align: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-card);
}

.exam-timer.warning {
    color: var(--accent-yellow);
    border-color: rgba(255, 170, 0, 0.3);
    animation: pulse-yellow 2s infinite;
}

.exam-timer.danger {
    color: var(--accent-red);
    border-color: rgba(255, 51, 102, 0.3);
    animation: pulse-red 1s infinite;
}

@keyframes pulse-yellow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 170, 0, 0); }
    50% { box-shadow: 0 0 20px rgba(255, 170, 0, 0.15); }
}

@keyframes pulse-red {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 51, 102, 0); }
    50% { box-shadow: 0 0 20px rgba(255, 51, 102, 0.2); }
}

.question-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 4px;
}

.question-nav .q-btn {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.question-nav .q-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.question-nav .q-btn.answered {
    background: var(--accent-cyan-dim);
    border-color: rgba(0, 212, 255, 0.3);
    color: var(--accent-cyan);
}

.question-nav .q-btn.flagged {
    background: var(--accent-yellow-dim);
    border-color: rgba(255, 170, 0, 0.3);
    color: var(--accent-yellow);
}

.question-nav .q-btn.current {
    border-color: var(--accent-cyan);
    box-shadow: var(--glow-cyan);
    color: var(--accent-cyan);
}

/* Answer Options */
.answer-option {
    display: block;
    width: 100%;
    padding: 1rem 1.25rem;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-size: 0.95rem;
}

.answer-option:hover {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.answer-option.selected {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
    box-shadow: var(--glow-cyan);
}

.answer-option .option-letter {
    display: inline-flex;
    width: 28px;
    height: 28px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    font-weight: 700;
    font-size: 0.8rem;
    margin-right: 0.75rem;
    color: var(--accent-cyan);
}

.answer-option.selected .option-letter {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-color: var(--accent-cyan);
}

/* Review Colors */
.answer-correct {
    border-color: var(--accent-green) !important;
    background: var(--accent-green-dim) !important;
}

.answer-incorrect {
    border-color: var(--accent-red) !important;
    background: var(--accent-red-dim) !important;
}

.answer-correct .option-letter {
    background: var(--accent-green);
    color: var(--bg-primary);
    border-color: var(--accent-green);
}

.answer-incorrect .option-letter {
    background: var(--accent-red);
    color: #fff;
    border-color: var(--accent-red);
}

/* Flash Messages */
.alert-cyber {
    border-radius: var(--radius-sm);
    border: 1px solid;
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-cyber.alert-success {
    background: var(--accent-green-dim);
    border-color: rgba(0, 255, 136, 0.2);
    color: var(--accent-green);
}

.alert-cyber.alert-error {
    background: var(--accent-red-dim);
    border-color: rgba(255, 51, 102, 0.2);
    color: var(--accent-red);
}

.alert-cyber.alert-info {
    background: var(--accent-cyan-dim);
    border-color: rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

/* Footer */
.footer-cyber {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-cyber a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-cyber a:hover {
    color: var(--accent-cyan);
}

/* Pricing Card */
.pricing-card {
    position: relative;
    max-width: 420px;
    margin: 0 auto;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

.pricing-card .price-period {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pricing-card .feature-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.pricing-card .feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-card .feature-list li .check {
    color: var(--accent-green);
    font-weight: bold;
}

/* Auth Layout */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 440px;
}

/* Admin Sidebar */
.admin-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    min-height: calc(100vh - 60px);
    padding: 1.5rem 0;
    width: 250px;
    position: fixed;
    top: 60px;
    left: 0;
    overflow-y: auto;
}

.admin-sidebar .nav-link {
    color: var(--text-secondary);
    padding: 0.65rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
    text-decoration: none;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.admin-content {
    margin-left: 250px;
    padding: 2rem;
    min-height: calc(100vh - 60px);
}

/* Pagination */
.pagination-cyber .page-link {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-secondary);
    transition: var(--transition);
}

.pagination-cyber .page-link:hover {
    background: var(--accent-cyan-dim);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.pagination-cyber .page-item.active .page-link {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: var(--bg-primary);
}

/* Utility */
.text-cyan { color: var(--accent-cyan) !important; }
.text-green { color: var(--accent-green) !important; }
.text-red { color: var(--accent-red) !important; }
.text-yellow { color: var(--accent-yellow) !important; }
.text-muted-cyber { color: var(--text-secondary) !important; }
.bg-cyber { background: var(--bg-card) !important; }
.border-cyber { border-color: var(--border-color) !important; }

.glow-text {
    text-shadow: 0 0 10px currentColor;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title { font-size: 2.25rem; }
    .hero-subtitle { font-size: 1rem; }
    .admin-sidebar { display: none; }
    .admin-content { margin-left: 0; }
    .stat-card .stat-value { font-size: 1.5rem; }
}

@media (max-width: 576px) {
    .hero-title { font-size: 1.85rem; }
    .question-nav { grid-template-columns: repeat(auto-fill, minmax(35px, 1fr)); }
}