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

:root {
    --primary-color: #FFA116;
    --primary-dark: #FF8C00;
    --secondary-color: #2196F3;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #f5f5f5;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--text-primary);
    line-height: 1.6;
    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-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

.cta-button {
    background: var(--primary-color);
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #fef6e4 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 161, 22, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(33, 150, 243, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.primary-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--primary-color);
    color: white;
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.primary-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.primary-button.large {
    padding: 20px 40px;
    font-size: 18px;
}

.secondary-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: var(--text-primary);
    padding: 16px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--border-color);
}

.secondary-button:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hero-badges {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
}

.hero-image {
    animation: fadeInRight 0.8s ease-out 0.2s backwards;
}

.browser-mockup {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition);
}

.browser-mockup:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.browser-header {
    background: #f5f5f5;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.browser-dots {
    display: flex;
    gap: 6px;
}

.browser-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ddd;
}

.browser-dots span:nth-child(1) { background: #ff5f56; }
.browser-dots span:nth-child(2) { background: #ffbd2e; }
.browser-dots span:nth-child(3) { background: #27c93f; }

.browser-url {
    flex: 1;
    background: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.browser-content {
    padding: 24px;
    background: #1e1e1e;
}

.code-preview {
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.8;
}

.code-line {
    color: #d4d4d4;
}

.keyword { color: #569cd6; }
.function { color: #dcdcaa; }
.param { color: #9cdcfe; }
.class { color: #4ec9b0; }
.number { color: #b5cea8; }
.comment { color: #6a9955; }

/* Features Section */
.features {
    padding: 100px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
    animation: fadeInUp 0.6s ease-out;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: white;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Video Demo Section */
.video-demo {
    padding: 100px 0;
    background: var(--bg-light);
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper {
    position: relative;
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #000;
    animation: fadeInUp 0.6s ease-out;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
}

.video-note {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 12px 20px;
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.video-note code {
    background: var(--bg-gray);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 13px;
    color: var(--primary-color);
}

/* How to Use Section */
.how-to-use {
    padding: 100px 0;
    background: white;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    animation: fadeInUp 0.6s ease-out backwards;
}

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-content {
    flex: 1;
    padding-top: 8px;
}

.step-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

/* Screenshots Section */
.screenshots {
    padding: 100px 0;
    background: white;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.screenshot-card {
    animation: fadeInUp 0.6s ease-out backwards;
    transition: var(--transition);
}

.screenshot-card:nth-child(1) { animation-delay: 0.1s; }
.screenshot-card:nth-child(2) { animation-delay: 0.2s; }
.screenshot-card:nth-child(3) { animation-delay: 0.3s; }

.screenshot-card:hover {
    transform: translateY(-8px);
}

.screenshot-card img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.screenshot-card:hover img {
    box-shadow: var(--shadow-lg);
}

.screenshot-placeholder {
    background: var(--bg-gray);
    border-radius: var(--border-radius);
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    border: 2px dashed var(--border-color);
    transition: var(--transition);
    min-height: 320px;
}

.screenshot-card:hover .screenshot-placeholder {
    border-color: var(--primary-color);
    background: #fef6e4;
}

.screenshot-note {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.screenshot-caption {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 16px;
    line-height: 1.6;
}

.screenshots-footer {
    text-align: center;
    margin-top: 48px;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 16px;
    background: var(--bg-light);
    border-radius: 8px;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .primary-button {
    background: white;
    color: var(--primary-color);
}

.cta-section .primary-button:hover {
    background: var(--bg-light);
    color: var(--primary-dark);
}

/* Footer */
.footer {
    padding: 60px 0 40px;
    background: var(--text-primary);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    max-width: 400px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.footer-links a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

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

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

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-image {
        order: -1;
    }

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

    .section-title {
        font-size: 32px;
    }

    .cta-title {
        font-size: 32px;
    }

    .browser-mockup {
        transform: none;
    }

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

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

    .video-container {
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-links a:not(.cta-button) {
        display: none;
    }

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

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

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

    .primary-button,
    .secondary-button {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .features,
    .how-to-use,
    .video-demo,
    .screenshots,
    .cta-section {
        padding: 60px 0;
    }

    .step {
        gap: 20px;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .step-title {
        font-size: 20px;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-subtitle {
        font-size: 16px;
    }
}