/* CAC Academy - Electromax Branding */
:root {
    --primary-color: #333333;
    --primary-hover: #4F4F4F;
    --text-color: #6d6c6c;
    --text-dark: #333333;
    --background: #FFFFFF;
    --background-alt: #F4F4F4;
    --border-color: #e0e0e0;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --accent-orange: #FF6600;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--background);
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--background);
    padding: 1rem 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 50px;
}

.lg-logo {
    height: 40px;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.nav-link:hover {
    background-color: var(--background-alt);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Section Title */
.section-title {
    color: var(--text-dark);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-orange);
    display: inline-block;
}

/* Session Cards */
.sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.session-card {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.3s, transform 0.2s;
}

.session-card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.session-card.full {
    opacity: 0.7;
}

.session-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-orange);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.session-title {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.session-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.session-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.session-description {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.spots-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.spots-badge.available {
    background: #e8f5e9;
    color: var(--success-color);
}

.spots-badge.limited {
    background: #fff3e0;
    color: #f57c00;
}

.spots-badge.full {
    background: #ffebee;
    color: var(--error-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--background-alt);
    color: var(--text-dark);
}

.btn-secondary:hover {
    background: var(--border-color);
}

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

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(51, 51, 51, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group .hint {
    font-size: 0.85rem;
    color: var(--text-color);
    margin-top: 0.3rem;
}

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

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

/* Card */
.card {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.card-title {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--background-alt);
    color: var(--text-dark);
    font-weight: 600;
}

tr:hover {
    background: var(--background-alt);
}

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-badge.active {
    background: #d4edda;
    color: #155724;
}

.status-badge.inactive {
    background: #f8d7da;
    color: #721c24;
}

.status-badge.confirmed {
    background: #d4edda;
    color: #155724;
}

.status-badge.cancelled {
    background: #f8d7da;
    color: #721c24;
}

/* Admin Dashboard */
.admin-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
}

.admin-header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header .logo {
    height: 40px;
    filter: brightness(0) invert(1);
}

.admin-nav {
    display: flex;
    gap: 1rem;
}

.admin-nav a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.admin-nav a:hover {
    opacity: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-color);
    font-size: 0.9rem;
}

/* Actions */
.actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Success Page */
.success-page {
    text-align: center;
    padding: 4rem 2rem;
}

.success-icon {
    font-size: 4rem;
    color: var(--success-color);
    margin-bottom: 1rem;
}

.success-page h1 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.confirmation-details {
    background: var(--background-alt);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem auto;
    max-width: 500px;
    text-align: left;
}

.confirmation-details h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.confirmation-details p {
    margin-bottom: 0.5rem;
}

.confirmation-details strong {
    color: var(--text-dark);
}

/* Footer */
.footer {
    background: var(--background-alt);
    padding: 2rem;
    margin-top: 4rem;
    text-align: center;
    color: var(--text-color);
    font-size: 0.9rem;
}

.footer a {
    color: var(--text-dark);
}

/* Accent Badge */
.accent-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-orange);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-color);
}

.empty-state h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

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

    .container {
        padding: 1rem;
    }

    .admin-header-content {
        flex-direction: column;
        gap: 1rem;
    }
}