/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --secondary: #EC4899;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border: #E5E7EB;
    --success: #10B981;
    --gradient: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-gray);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    color: white;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    width: fit-content;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.hero-description {
    font-size: 20px;
    color: var(--text-gray);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: #F5F6FF;
}

.hero-features {
    display: flex;
    gap: 24px;
    margin-top: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 500;
}

.hero-image {
    position: relative;
}

.screenshot-main {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform 0.3s ease;
}

.screenshot-main:hover {
    transform: scale(1.02);
}

/* Use Case Section */
.use-case {
    padding: 100px 0;
    background: white;
}

.use-case-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.use-case-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.use-case-text h2 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 32px;
}

.use-case-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.use-case-feature {
    display: flex;
    gap: 16px;
}

.icon-wrapper {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #F0F1FF;
    border-radius: 12px;
}

.use-case-feature h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.use-case-feature p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: #F0F1FF;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* Export Formats Section */
.export-formats {
    padding: 100px 0;
    background: white;
}

.export-showcase {
    margin: 40px 0 60px;
    text-align: center;
}

.export-image {
    width: 100%;
    max-width: 900px;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.format-card {
    background: var(--bg-light);
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.format-card:hover {
    background: white;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.format-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.format-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.format-card p {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.5;
}

/* Gallery Section */
.gallery {
    padding: 100px 0;
    background: var(--bg-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.gallery-item {
    position: relative;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-item img {
    width: 100%;
    display: block;
}

.gallery-caption {
    padding: 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-gray);
    text-align: center;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 60px;
    background: rgba(99, 102, 241, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    animation: fadeIn 0.3s ease;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox-content {
    max-width: 90%;
    max-height: 80%;
    object-fit: contain;
    border-radius: 8px;
    animation: zoomIn 0.3s ease;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: white;
    font-size: 50px;
    font-weight: 300;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--primary-light);
}

.lightbox-caption {
    color: white;
    font-size: 18px;
    font-weight: 500;
    margin-top: 20px;
    text-align: center;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
}

.download-content {
    text-align: center;
}

.download-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.download-header .section-description {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 48px;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto 48px;
}

.download-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.download-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--success);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.download-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.download-card p {
    font-size: 15px;
    color: var(--text-gray);
    margin-bottom: 24px;
}

.system-requirements {
    background: rgba(255, 255, 255, 0.15);
    padding: 24px;
    border-radius: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.system-requirements h4 {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.requirements-list {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.requirements-list span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-method:hover {
    background: #F0F1FF;
    transform: translateX(4px);
}

.contact-method h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-method span {
    font-size: 14px;
    color: var(--primary);
}

.cta-card {
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    padding: 48px;
    border-radius: 16px;
    color: white;
    text-align: center;
}

.cta-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-card p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 24px;
}

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

.cta-card .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 48px 0;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.footer-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content,
    .use-case-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

    .hero h1 {
        font-size: 42px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-description {
        font-size: 18px;
    }

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

    .section-header h2,
    .use-case-text h2,
    .contact-info h2,
    .download-header h2 {
        font-size: 32px;
    }

    .features-grid,
    .formats-grid,
    .gallery-grid,
    .download-options {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text > * {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
}

.hero-text > *:nth-child(1) { animation-delay: 0.1s; }
.hero-text > *:nth-child(2) { animation-delay: 0.2s; }
.hero-text > *:nth-child(3) { animation-delay: 0.3s; }
.hero-text > *:nth-child(4) { animation-delay: 0.4s; }
.hero-text > *:nth-child(5) { animation-delay: 0.5s; }

/* Smooth Scrolling */
section {
    scroll-margin-top: 80px;
}