/* LIMAN SDK - Modern Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* CSS Variables */
:root {
    --primary: #0066cc;
    --primary-dark: #0052a3;
    --primary-light: #e6f0ff;
    --secondary: #1a1a2e;
    --accent: #00d4aa;
    --text: #1a1a2e;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-dark: #0f172a;
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --code-bg: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
    background: var(--primary-light);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    vertical-align: middle;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s;
    list-style: none;
    padding: 0.5rem;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.625rem 1rem;
    border-radius: 6px;
}

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
    text-align: center;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-alt);
    border-color: var(--text-muted);
    color: var(--text);
}

.btn-accent {
    background: var(--accent);
    color: var(--secondary);
}

.btn-accent:hover {
    background: #00b894;
    color: var(--secondary);
}

/* Sections */
.section {
    padding: 5rem 2rem;
}

.section-alt {
    background: var(--bg-alt);
}

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

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    font-size: 0.9rem;
    margin: 0;
}

/* Download Table */
.download-section {
    padding: 4rem 2rem;
}

.download-intro {
    max-width: 700px;
    margin: 0 auto 3rem;
    text-align: center;
}

.download-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.download-table th,
.download-table td {
    padding: 1rem 1.5rem;
    text-align: left;
}

.download-table thead {
    background: var(--secondary);
    color: white;
}

.download-table th {
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.download-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

.download-table tbody tr:hover {
    background: var(--bg-alt);
}

.download-table tbody tr:last-child {
    border-bottom: none;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary);
    color: white;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s;
}

.download-link:hover {
    background: var(--primary-dark);
    color: white;
}

.platform-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-alt);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-light);
}

/* Documentation */
.docs-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.docs-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.docs-nav {
    list-style: none;
}

.docs-nav li {
    margin-bottom: 0.25rem;
}

.docs-nav a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-light);
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.docs-nav a:hover,
.docs-nav a.active {
    background: var(--primary-light);
    color: var(--primary);
}

.docs-content {
    min-width: 0;
}

.docs-content h1 {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.docs-content h2 {
    margin-top: 3rem;
    margin-bottom: 1rem;
}

.docs-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

/* Code Blocks */
.code-block {
    background: var(--code-bg);
    border-radius: var(--radius);
    overflow: hidden;
    margin: 1.5rem 0;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.code-lang {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

pre {
    padding: 1.5rem;
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.7;
    color: #e2e8f0;
    margin: 0;
}

code {
    font-family: 'JetBrains Mono', monospace;
}

/* Inline code */
p code, li code {
    background: var(--bg-alt);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--primary-dark);
    border: 1px solid var(--border);
}

/* Note/Warning boxes */
.note {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    border-left: 4px solid;
}

.note-info {
    background: var(--primary-light);
    border-color: var(--primary);
}

.note-warning {
    background: #fef3c7;
    border-color: var(--warning);
}

.note-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.note p {
    margin: 0;
    font-size: 0.9rem;
}

/* Tables in docs */
.docs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.docs-table th,
.docs-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border: 1px solid var(--border);
}

.docs-table th {
    background: var(--bg-alt);
    font-weight: 600;
}

.docs-table tbody tr:hover {
    background: var(--bg-alt);
}

/* Lists */
.docs-content ul,
.docs-content ol {
    margin: 1rem 0 1rem 1.5rem;
}

.docs-content li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-muted);
    padding: 3rem 2rem;
}

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

.footer-logo {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
}

.footer-logo span {
    color: var(--primary);
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 1rem 0;
        gap: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .docs-layout {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        position: static;
    }

    .download-table {
        display: block;
        overflow-x: auto;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

/* Utility classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }