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

:root {
    --primary-color: #ff006e;
    --secondary-color: #8338ec;
    --accent-color: #3a86ff;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(255, 0, 110, 0.3);
    --error-color: #dc3545;
    --success-color: #28a745;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 2rem;
}

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

.header-content > div:first-child {
    text-align: left;
}

header h1 {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.mode-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
}

.mode-label {
    font-size: 0.9rem;
    font-weight: 600;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.3);
    transition: 0.4s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--white);
    transition: 0.4s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: rgba(255, 255, 255, 0.5);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* Profile Dropdown */
.profile-dropdown {
    position: relative;
}

.profile-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.profile-avatar:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.profile-avatar span {
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
}

.profile-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    min-width: 200px;
    z-index: 1000;
    animation: slideDown 0.3s ease;
}

.profile-info {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.profile-name {
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.profile-email {
    font-size: 0.9rem;
    color: var(--text-light);
}

.profile-divider {
    height: 1px;
    background-color: var(--border-color);
}

.profile-menu-item {
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-color);
    transition: background-color 0.3s ease;
}

.profile-menu-item:hover {
    background-color: var(--bg-light);
}

.profile-menu-item:first-of-type {
    border-radius: 10px 10px 0 0;
}

.profile-menu-item:last-of-type {
    border-radius: 0 0 10px 10px;
}

main {
    padding: 2rem;
}

section {
    margin-bottom: 2rem;
}

h2 {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.empty-message {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    padding: 3rem;
    grid-column: 1 / -1;
}

.video-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.video-card-link {
    display: block;
    text-decoration: none;
    position: relative;
}

.video-card-thumbnail {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.video-card:hover .video-card-thumbnail {
    opacity: 0.9;
}

.video-card.locked .video-card-thumbnail {
    opacity: 0.5;
}

.locked-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.video-card.locked {
    cursor: pointer;
}

.video-card-info {
    padding: 1.5rem;
}

.video-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-card-price {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1rem;
}

.video-card-price.price-free {
    background-color: var(--success-color);
    color: var(--white);
}

.video-card-price.price-paid {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Modal Styles */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideDown 0.3s ease;
}

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

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border-radius: 15px 15px 0 0;
}

.modal-header h2 {
    margin: 0;
    border: none;
    padding: 0;
    color: var(--white);
    font-size: 1.5rem;
}

.modal-close {
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
    transition: transform 0.3s ease;
}

.modal-close:hover {
    transform: scale(1.2);
}

.modal-body {
    padding: 2rem;
}

.video-preview-info {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.modal-thumbnail {
    width: 200px;
    height: 112px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.video-details {
    flex: 1;
}

.video-details h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.price-info {
    font-size: 1.1rem;
    color: var(--text-light);
}

.price-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.payment-form {
    margin-top: 1.5rem;
}

.payment-message {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.payment-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.payment-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.payment-option:hover {
    border-color: var(--primary-color);
    background-color: rgba(255, 0, 110, 0.05);
}

.payment-option input[type="radio"] {
    margin-right: 1rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.payment-option span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
    width: 100%;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    margin-bottom: 1rem;
}

.btn-primary:hover {
    background-color: #e0005f;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: #e8e8e8;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.bundle-option {
    margin-bottom: 1.5rem;
}

.bundle-alert {
    background-color: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.bundle-alert p {
    margin-bottom: 0.5rem;
    color: #856404;
}

.bundle-videos-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: var(--bg-light);
    border-radius: 8px;
}

.bundle-video-item {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.bundle-video-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.bundle-video-item.selected {
    border-color: var(--primary-color);
    background-color: rgba(255, 0, 110, 0.1);
}

.bundle-video-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.bundle-video-item .bundle-video-title {
    padding: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-color);
    text-align: center;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bundle-summary {
    text-align: center;
    padding-top: 1rem;
    border-top: 2px solid var(--border-color);
}

.bundle-summary p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.membership-info {
    text-align: center;
    margin-bottom: 2rem;
}

.membership-info h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.membership-price {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.membership-benefits {
    color: var(--text-light);
    line-height: 1.6;
}

/* Pricing Options Modal */
.pricing-options-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pricing-option-card {
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pricing-option-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.pricing-option-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.pricing-option-header h3 {
    font-size: 1.2rem;
    color: var(--text-color);
    margin: 0;
}

.pricing-option-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-option-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.pricing-option-card .btn {
    width: auto;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .header-controls {
        width: 100%;
        justify-content: center;
    }

    main {
        padding: 1rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

    .video-preview-info {
        flex-direction: column;
    }

    .modal-thumbnail {
        width: 100%;
        height: auto;
    }

    .modal-content {
        width: 95%;
        margin: 1rem;
    }

    .bundle-videos-list {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    header {
        padding: 1.5rem;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .modal-header {
        padding: 1rem 1.5rem;
    }

    .modal-body {
        padding: 1.5rem;
    }
}