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

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #111111;
    --bg-hover: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --accent-red: #ff0000;
    --accent-red-dark: #cc0000;
    --accent-red-light: #ff3333;
    --border-color: #333333;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
}

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

.navbar {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(255,0,0,0.1);
    border-bottom: 1px solid var(--accent-red);
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-red);
    text-shadow: 0 0 10px rgba(255,0,0,0.5);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

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

.nav-links a:hover {
    color: var(--accent-red);
    text-shadow: 0 0 5px rgba(255,0,0,0.5);
}

.hero-section {
    text-align: center;
    padding: 5rem 0;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1a0000 100%);
    border-radius: 15px;
    margin: 2rem 0;
}

.hero-section h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(255,0,0,0.3);
}

.hero-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 12px 24px;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: var(--accent-red);
    color: var(--text-primary);
    border-color: var(--accent-red);
    box-shadow: 0 4px 15px rgba(255,0,0,0.3);
}

.btn-primary:hover {
    background: var(--accent-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,0,0,0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--accent-red);
}

.btn-secondary:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,0,0,0.5);
}

.btn-block {
    width: 100%;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

.auth-form {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(255,0,0,0.1);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 400px;
}

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

.form-group {
    margin-bottom: 1rem;
}

.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: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(255,0,0,0.1);
}

.form-group small {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-link {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
}

.auth-link a {
    color: var(--accent-red);
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

.message {
    margin-top: 1rem;
    padding: 10px;
    border-radius: 6px;
    text-align: center;
}

.message.error {
    background: rgba(255,0,0,0.1);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
}

.message.success {
    background: rgba(0,255,0,0.1);
    color: #00ff00;
    border: 1px solid #00ff00;
}

.dashboard {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
    box-shadow: 0 10px 30px rgba(255,0,0,0.1);
    border: 1px solid var(--border-color);
}

.dashboard h1 {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.subscription-status {
    margin-bottom: 2rem;
}

.status-card {
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
}

.status-card.active {
    background: rgba(0,255,0,0.05);
    border: 2px solid #00ff00;
}

.status-card.expired {
    background: rgba(255,0,0,0.05);
    border: 2px solid var(--accent-red);
}

.status-card.no-subscription {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
}

.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

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

.package-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255,0,0,0.2);
    border-color: var(--accent-red);
}

.package-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.package-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.package-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.package-details {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.package-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-red);
}

.package-days {
    background: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-purchase {
    width: 100%;
}

.admin-panel {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
    min-height: 600px;
    border: 1px solid var(--border-color);
}

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

.tab-button {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-secondary);
    position: relative;
    transition: color 0.3s;
}

.tab-button.active {
    color: var(--accent-red);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-red);
}

.tab-content {
    display: none;
}

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

.package-form {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

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

.packages-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.admin-package-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: all 0.3s;
}

.admin-package-card:hover {
    border-color: var(--accent-red);
    box-shadow: 0 5px 15px rgba(255,0,0,0.2);
}

.admin-package-card h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.package-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

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

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
}

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

.status-active {
    color: #00ff00;
    font-weight: 600;
}

.status-expired {
    color: var(--accent-red);
    font-weight: 600;
}

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

.btn-edit {
    background: var(--accent-red);
    color: var(--text-primary);
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s;
}

.btn-edit:hover {
    background: var(--accent-red-dark);
    transform: translateY(-1px);
}

.btn-delete {
    background: transparent;
    color: var(--accent-red);
    padding: 6px 12px;
    border: 1px solid var(--accent-red);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s;
}

.btn-delete:hover {
    background: var(--accent-red);
    color: var(--text-primary);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--accent-red);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent-red);
    border-radius: 5px;
}

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

/* Selection styling */
::selection {
    background: var(--accent-red);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 1rem;
    }
}