/* Version 1: Modern Minimalist Design */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    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(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
    color: #1a1a1a;
}

.logo-icon {
    font-size: 24px;
}

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

.nav-links a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #007bff;
}

/* Hero Section */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    max-width: 500px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 20px;
    color: #666;
    margin-bottom: 32px;
    line-height: 1.5;
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.stat {
    padding: 8px 16px;
    background: rgba(0, 123, 255, 0.1);
    color: #007bff;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

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

.btn-primary, .btn-secondary {
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #007bff;
    color: white;
    box-shadow: 0 4px 20px rgba(0, 123, 255, 0.3);
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 123, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #007bff;
    border: 2px solid #007bff;
}

.btn-secondary:hover {
    background: #007bff;
    color: white;
    transform: translateY(-2px);
}

.btn-primary.large, .btn-secondary.large {
    padding: 20px 40px;
    font-size: 18px;
}

/* App Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-mockup {
    width: 100%;
    max-width: 500px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

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

.mockup-header {
    background: #f8f9fa;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid #e9ecef;
}

.mockup-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ff5f57; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #28ca42; }

.mockup-title {
    font-weight: 600;
    color: #666;
    font-size: 14px;
}

.mockup-content {
    display: flex;
    height: 300px;
}

.mockup-sidebar {
    width: 200px;
    background: #f8f9fa;
    padding: 20px 16px;
    border-right: 1px solid #e9ecef;
}

.sidebar-item {
    padding: 8px 12px;
    margin-bottom: 4px;
    border-radius: 8px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-item.active {
    background: #007bff;
    color: white;
}

.sidebar-item:hover:not(.active) {
    background: #e9ecef;
}

.mockup-main {
    flex: 1;
    padding: 20px;
    background: white;
}

.content-line {
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.5;
}

.content-line.title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.content-line.code {
    background: #f8f9fa;
    padding: 12px;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 12px;
    color: #666;
    white-space: pre;
}

.highlight-demo {
    margin-top: 16px;
}

.highlighted {
    padding: 2px 4px;
    border-radius: 3px;
}

.highlighted.yellow {
    background: #fff3cd;
    color: #856404;
}

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

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #1a1a1a;
    letter-spacing: -0.01em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 40px 24px;
    border-radius: 16px;
    background: white;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #007bff;
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
    font-size: 16px;
}

/* Showcase Section */
.showcase {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.showcase-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #1a1a1a;
}

.showcase-text p {
    font-size: 18px;
    color: #666;
    margin-bottom: 32px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 8px 0;
    font-size: 16px;
    color: #666;
}

.showcase-image {
    display: flex;
    justify-content: center;
}

.focus-mode-demo {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.focus-header {
    background: #1a1a1a;
    color: white;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.focus-title {
    font-weight: 600;
    font-size: 14px;
}

.theme-selector {
    display: flex;
    gap: 8px;
}

.theme {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
}

.theme.light { background: #ffffff; }
.theme.dark { background: #1a1a1a; }
.theme.blue { background: #007bff; }

.theme.active {
    border-color: #007bff;
}

.focus-content {
    padding: 40px 30px;
}

.focus-content h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.focus-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 16px;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: #666;
    font-weight: 500;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 24px;
}

.download-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.download .btn-primary {
    background: white;
    color: #007bff;
}

.download .btn-primary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.download .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.download .btn-secondary:hover {
    background: white;
    color: #007bff;
}

.browser-support {
    opacity: 0.8;
}

.browser-support span {
    display: block;
    margin-bottom: 16px;
    font-size: 16px;
}

.browser-icons {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.browser {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 14px;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 18px;
}

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #999;
}

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

.hero-content,
.feature-card,
.showcase-text {
    animation: fadeInUp 0.8s ease-out;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: rgba(0, 123, 255, 0.2);
    color: #1a1a1a;
}