/* Reset i Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8b5cf6;
    --secondary-color: #ec4899;
    --dark-bg: #0f172a;
    --dark-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background: var(--dark-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

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

.logo i {
    font-size: 2rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.content-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 3rem 0;
}

.hero-section h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.stat-card {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.3);
}

.stat-card i {
    font-size: 3rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Recent Activities */
.recent-section {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.recent-section h3 {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.activities-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease;
}

.activity-item:hover {
    transform: translateX(5px);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-content strong {
    color: var(--text-primary);
}

.activity-time {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: var(--dark-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--dark-bg);
}

/* Filters Bar */
.filters-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.filter-group {
    display: flex;
    gap: 1rem;
}

.filter-group select {
    padding: 0.75rem 1rem;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
}

/* Items Grid */
.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.item-card {
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.item-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

.item-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    background: var(--dark-bg);
}

.item-content {
    padding: 1.5rem;
}

.item-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.item-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.meta-badge {
    padding: 0.25rem 0.75rem;
    background: var(--dark-bg);
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.item-rating {
    color: #fbbf24;
}

.item-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    color: var(--text-primary);
    border-color: var(--primary-color);
}

/* Concerts Timeline */
.concerts-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.concert-card {
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    padding: 2rem;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.concert-card:hover {
    transform: translateX(5px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

.concert-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    background: var(--dark-bg);
}

.concert-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.concert-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
    color: var(--text-secondary);
}

.concert-detail {
    display: flex;
    align-items: center;
    gap: 10px;
}

.concert-detail i {
    width: 20px;
    color: var(--primary-color);
}

/* Newsletter Section */
.newsletter-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.newsletter-subscribe,
.newsletter-admin {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.subscribe-form {
    margin-top: 2rem;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

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

.message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
}

.message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
    display: block;
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
    display: block;
}

/* Subscribers Table */
.subscribers-table {
    margin-top: 1.5rem;
    max-height: 400px;
    overflow-y: auto;
}

.subscriber-item {
    padding: 1rem;
    background: var(--dark-bg);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Admin Section */
.admin-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 1rem 2rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.admin-content {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.tab-content {
    display: none;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--dark-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

.modal-content.large {
    max-width: 900px;
}

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

.modal-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}

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

.modal-content form {
    padding: 2rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

/* Rating Input */
.rating-input {
    display: flex;
    gap: 0.5rem;
    font-size: 1.5rem;
}

.rating-star {
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease;
}

.rating-star:hover,
.rating-star.active {
    color: #fbbf24;
}

/* Admin Only Elements */
.admin-only {
    display: none;
}

body.admin-mode .admin-only {
    display: block;
}

body.admin-mode .nav-link.admin-only {
    display: flex;
}

/* Footer */
.main-footer {
    background: var(--dark-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 1rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 968px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-section h2 {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .concert-card {
        grid-template-columns: 1fr;
    }
    
    .newsletter-wrapper {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .items-grid {
        grid-template-columns: 1fr;
    }
    
    .filters-bar {
        flex-direction: column;
    }
    
    .search-box {
        min-width: 100%;
    }
}