/* Base styles */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-800: #1f2937;
}

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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: linear-gradient(to right, #2563eb, #1d4ed8);
    color: white;
    padding: 1.5rem 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.header-icon {
    width: 2rem;
    height: 2rem;
    color: #bfdbfe;
}

.header h1 {
    font-size: 1.875rem;
    font-weight: bold;
}

.header-subtitle {
    text-align: center;
    margin-top: 0.5rem;
    color: #bfdbfe;
}

/* Main Content */
.main-content {
    padding: 3rem 1rem;
}

.intro-section {
    text-align: center;
    max-width: 42rem;
    margin: 0 auto 4rem;
}

.intro-section h2 {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.intro-section p {
    color: var(--gray-600);
}

/* Download Form */
.download-form {
    max-width: 42rem;
    margin: 0 auto;
    padding: 1.5rem;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.input-wrapper {
    position: relative;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 10px;
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    width: 1.25rem;
    height: 1.25rem;
}

input[type="url"] {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
}

input[type="url"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.download-button {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.download-button:hover {
    background: var(--primary-dark);
}


/* Modal styles */
.modal {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    z-index: 51;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    max-width: 48rem;
    width: calc(100% - 2rem);
    margin: 0 1rem;
}

.modal-close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0.5rem;
}

.modal-close:hover {
    color: var(--gray-700);
}

/* Video Preview */
.video-preview {
    padding: 1.5rem;
}

.video-preview h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.video-container {
    aspect-ratio: 16 / 9;
    background: var(--gray-100);
    border-radius: 0.5rem;
    overflow: hidden;
    margin-bottom: 1rem;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.preview-actions {
    display: flex;
    justify-content: flex-end;
}

.preview-actions .download-button {
    width: auto;
}


/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 1rem;
}

.feature-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px -1px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    color: var(--primary);
    margin: 0 auto 1rem;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-800);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.5;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade {
    animation: fadeIn 0.3s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.4s ease-out;
}

.animate-scale {
    animation: scaleIn 0.3s ease-out;
}

/* Modal animations */
.modal.active .modal-overlay {
    animation: fadeIn 0.3s ease-out;
}

.modal.active .modal-content {
    animation: scaleIn 0.3s ease-out;
}

/* Navbar styles */
.navbar {
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 0;
    position: relative;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--gray-800);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--primary);
}

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

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.875rem;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--gray-50);
}

.nav-link.active {
    color: var(--primary);
    background: var(--gray-50);
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--gray-600);
}

.mobile-menu-btn:hover {
    color: var(--primary);
}

/* Responsive design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        z-index: 50;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-link {
        padding: 0.75rem 1rem;
        border-radius: 0.5rem;
    }

    .nav-link:hover {
        background: var(--gray-50);
    }
}