/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-upcoming {
    background-color: #dcfce7;
    color: #166534;
}

.badge-past {
    background-color: #f1f5f9;
    color: #64748b;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#userEmail {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: #475569;
}

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

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

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

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

/* Main Content */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

/* Page Management */
.page {
    display: none;
}

.page.active {
    display: block;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

/* Search Bar */
.search-bar {
    display: flex;
    gap: 0.5rem;
}

.search-bar input {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    min-width: 300px;
}

/* Events Grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.event-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.event-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 0.75rem;
}

.event-image .badge {
    box-shadow: var(--shadow);
}

.event-past {
    opacity: 0.85;
}

.event-past:hover {
    opacity: 1;
}

.event-content {
    padding: 1.5rem;
}

.event-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.event-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.event-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

.event-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.event-capacity {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Tickets List */
.tickets-list {
    display: grid;
    gap: 1rem;
}

.ticket-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ticket-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.ticket-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.ticket-number {
    font-family: monospace;
    background-color: var(--bg-color);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    margin-top: 0.5rem;
    display: inline-block;
}

.ticket-status {
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
}

.ticket-status.valid {
    background-color: #dcfce7;
    color: #166534;
}

.ticket-status.used {
    background-color: #fee2e2;
    color: #991b1b;
}

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

.stat-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-card h4 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal.show {
    display: block;
}

.modal-content {
    background-color: var(--card-bg);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s;
}

.modal-large {
    max-width: 800px;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    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: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-footer {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 6px;
    color: white;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    transition: transform 0.3s;
    z-index: 2000;
}

.toast.show {
    transform: translateX(0);
}

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

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

.toast.warning {
    background-color: var(--warning-color);
}

/* Loading */
.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* Event Details */
.event-detail-header {
    margin-bottom: 2rem;
}

.event-detail-header h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.event-detail-info {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-row {
    display: flex;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.info-row strong {
    color: var(--text-primary);
}

.purchase-section {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}

.quantity-selector button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
}

.quantity-selector input {
    width: 80px;
    text-align: center;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .search-bar input {
        min-width: 100%;
    }

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

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

    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
}