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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --dark-bg: #1e293b;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover {
    background: var(--light-bg);
    color: var(--primary-color);
}

/* Pages */
.page {
    display: none;
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

.page.active {
    display: block;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 4rem 0;
    color: white;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.stat-card h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1rem;
    opacity: 0.9;
}

.admin-login-banner {
    margin-top: 3rem;
    text-align: center;
}

.admin-login-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s;
}

.admin-login-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.admin-login-link {
    background: var(--primary-color) !important;
    color: white !important;
    padding: 8px 16px !important;
    border-radius: 8px !important;
}

.admin-login-link:hover {
    background: var(--primary-dark) !important;
}

.admin-tab-btn {
    position: relative;
}

.admin-tab-btn i {
    margin-right: 5px;
}

.admin-credentials-hint {
    background: #fef3c7;
    border: 1px solid #fbbf24;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.admin-credentials-hint p {
    margin: 0.5rem 0;
    color: #92400e;
    font-size: 0.9rem;
}

.admin-credentials-hint code {
    background: rgba(255, 255, 255, 0.5);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    color: #78350f;
}

/* Admin Login Page */
.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.admin-login-container {
    max-width: 500px;
    width: 100%;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.admin-login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.admin-login-header i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.admin-login-header h1 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.admin-login-header p {
    color: var(--text-secondary);
}

.back-to-home {
    display: block;
    text-align: center;
    margin-top: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.back-to-home:hover {
    text-decoration: underline;
}

/* Auth Section */
.auth-section {
    padding: 3rem 0;
}

.auth-container {
    max-width: 500px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-tabs {
    display: flex;
    background: var(--light-bg);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: transparent;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-secondary);
}

.tab-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
}

.auth-form {
    display: none;
    padding: 2rem;
}

.auth-form.active {
    display: block;
}

.auth-form h2 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

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

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

.form-group label i {
    margin-right: 8px;
    color: var(--primary-color);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-secondary:hover {
    background: #059669;
}

.form-message {
    margin-top: 1rem;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
}

/* Dashboard */
.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h1 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

.balance-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.balance-info {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.balance-info i {
    font-size: 3rem;
    color: var(--primary-color);
}

.balance-info p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.balance-info h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-box {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-box i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.stat-box h3 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

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

.ads-section {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.ads-section h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.ads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.ad-card {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
    cursor: pointer;
}

.ad-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.ad-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.ad-title {
    font-weight: 600;
    color: var(--text-primary);
}

.ad-reward {
    background: var(--secondary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.ad-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.ad-duration {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.ad-card button {
    width: 100%;
    margin-top: 1rem;
}

/* Earnings Page */
.earnings-container {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.earnings-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.summary-card h3 {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.summary-card .amount {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.earnings-table-container {
    margin-top: 2rem;
}

.earnings-table-container h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

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

.earnings-table th {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--text-primary);
}

.earnings-table td {
    color: var(--text-secondary);
}

.no-data {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: capitalize;
}

.status-badge.completed {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.pending {
    background: #fef3c7;
    color: #92400e;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s;
}

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

.ad-viewer {
    text-align: center;
}

.countdown-container {
    margin: 2rem 0;
}

.countdown-container p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.countdown-bar {
    width: 100%;
    height: 10px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.countdown-progress {
    height: 100%;
    background: var(--primary-color);
    width: 0%;
    transition: width 1s linear;
}

.ad-content {
    min-height: 300px;
    background: var(--light-bg);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
}

.ad-content img {
    max-width: 100%;
    border-radius: 8px;
}

/* Admin Panel Styles */
.admin-header {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

.admin-header h1 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-tab-btn {
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    background: var(--light-bg);
    color: var(--text-primary);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.admin-tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.admin-tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.admin-tab-content {
    display: none;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

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

.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-stat-card {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-left: 4px solid var(--primary-color);
}

.admin-stat-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.admin-stat-card h3 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.admin-stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.admin-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-section-header h2 {
    color: var(--text-primary);
}

.admin-table-container {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
}

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

.admin-table th {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

.admin-table td {
    color: var(--text-secondary);
}

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

.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

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

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

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

.btn-delete:hover {
    background: #dc2626;
}

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

.btn-approve:hover {
    background: #059669;
}

.btn-reject {
    background: #f59e0b;
    color: white;
}

.btn-reject:hover {
    background: #d97706;
}

.btn-block {
    background: #ef4444;
    color: white;
}

.btn-block:hover {
    background: #dc2626;
}

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

.btn-unblock:hover {
    background: #059669;
}

.search-input {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    width: 300px;
    max-width: 100%;
}

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

.filter-group {
    display: flex;
    gap: 10px;
}

.filter-select {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.settings-container {
    max-width: 800px;
}

.settings-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.settings-card h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 1.5rem;
}

.form-actions .btn {
    width: auto;
    flex: 1;
}

.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    transition: all 0.3s;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.status-badge.active {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.inactive {
    background: #fee2e2;
    color: #991b1b;
}

.status-badge.blocked {
    background: #fee2e2;
    color: #991b1b;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        flex-direction: column;
        gap: 10px;
    }

    .balance-card {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .earnings-table {
        font-size: 0.875rem;
    }

    .earnings-table th,
    .earnings-table td {
        padding: 0.5rem;
    }

    .admin-tabs {
        flex-direction: column;
    }

    .admin-tab-btn {
        width: 100%;
    }

    .admin-section-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-input {
        width: 100%;
    }

    .admin-table {
        font-size: 0.875rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-sm {
        width: 100%;
    }
}