/* ============================================
   AImaker - Modern Video Generation Tool Website
   ============================================ */

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

:root {
    --primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent: #f093fb;
    --success: #48bb78;
    --danger: #f56565;
    --text-dark: #1a202c;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================
   Typography & Utilities
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

p {
    color: var(--text-light);
    margin-bottom: 15px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--border-radius);
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-large {
    padding: 14px 32px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    display: block;
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f5f7ff 0%, #fef5ff 100%);
    overflow: hidden;
    margin-top: 60px;
}

.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
}

.stars::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image:
        radial-gradient(2px 2px at 20px 30px, #667eea, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 60px 70px, #764ba2, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 50px 50px, #f093fb, rgba(0,0,0,0));
    background-size: 200px 200px;
    animation: twinkle 5s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    min-width: 200px;
}

.hero-features {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-dark);
}

.hero-feature-item .icon {
    font-size: 1.5rem;
}

/* ============================================
   Features Section
   ============================================ */

.features {
    padding: 80px 0;
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: linear-gradient(135deg, #f5f7ff 0%, #fef5ff 100%);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid rgba(102, 126, 234, 0.1);
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.feature-specs {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.spec {
    font-size: 0.9rem;
    padding: 8px 12px;
    background: white;
    border-radius: 6px;
    color: var(--primary-color);
    font-weight: 500;
    border-left: 3px solid var(--primary-color);
}

/* ============================================
   Capabilities Section
   ============================================ */

.capabilities {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.capabilities .section-header h2,
.capabilities .section-header p {
    color: white;
}

.capabilities-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.capability-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.capability-number {
    font-size: 2.5rem;
    font-weight: 700;
    opacity: 0.3;
    flex-shrink: 0;
    width: 80px;
}

.capability-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.capability-item p {
    color: rgba(255, 255, 255, 0.9);
}

.capability-visual {
    background: rgba(255, 255, 255, 0.1);
    height: 300px;
    border-radius: var(--border-radius);
    border: 2px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.capability-visual::before {
    content: '🚀';
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ============================================
   Stats Section
   ============================================ */

.stats {
    padding: 60px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #fef5ff 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 30px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing {
    padding: 80px 0;
    background: var(--bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: var(--bg-light);
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

.pricing-card-featured {
    background: var(--primary);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
}

.pricing-card-featured h3,
.pricing-card-featured .pricing-period {
    color: white;
}

.pricing-card-featured .check {
    color: var(--success);
}

.pricing-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-badge.featured {
    background: var(--success);
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    margin-top: 10px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 5px;
    margin-bottom: 30px;
}

.currency {
    font-size: 1rem;
    font-weight: 600;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-card-featured .amount {
    color: white;
}

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

.pricing-card-featured .period {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-card-featured .pricing-features li {
    border-color: rgba(255, 255, 255, 0.1);
}

.check {
    color: var(--success);
    font-weight: 700;
    font-size: 1.2rem;
}

.cross {
    color: var(--danger);
    font-weight: 700;
    font-size: 1.2rem;
}

/* ============================================
   Testimonials Section
   ============================================ */

.testimonials {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #fef5ff 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
    transform: translateY(-5px);
}

.rating {
    color: #ffd700;
    font-size: 1.1rem;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.testimonial-card p {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    font-size: 2.5rem;
}

.author-name {
    font-weight: 600;
    color: var(--text-dark);
}

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

/* ============================================
   CTA Section
   ============================================ */

.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: white;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
    font-weight: 600;
    font-size: 1.05rem;
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: 80px 0;
    background: var(--bg-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--border-radius);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    color: var(--text-dark);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--text-light);
}

.contact-item a {
    color: var(--primary-color);
}

/* ============================================
   Download Section
   ============================================ */

.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #fef5ff 100%);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.download-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 2px solid transparent;
}

.download-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.15);
    transform: translateY(-5px);
}

.download-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

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

.size {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.system-require {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 15px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--text-dark);
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--primary-color);
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   Modal
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

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

.demo-video {
    margin-top: 20px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        display: none;
        width: 100%;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

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

    .hero {
        padding: 100px 0 50px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .hero-buttons .btn {
        width: 100%;
    }

    h2 {
        font-size: 1.8rem;
    }

    .capabilities-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .cta-features {
        flex-direction: column;
        gap: 15px;
    }

    .pricing-card-featured {
        transform: scale(1);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav-menu a.btn-primary {
        display: none;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-features {
        flex-direction: column;
        gap: 15px;
    }

    h2 {
        font-size: 1.5rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .pricing-features li {
        font-size: 0.9rem;
    }
}

/* ============================================
   Animations
   ============================================ */

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card {
    animation: slideInUp 0.6s ease-out;
}

.feature-card:nth-child(2) {
    animation-delay: 0.1s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.2s;
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.btn:active {
    transform: scale(0.98);
}