@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --secondary: #8B5CF6;
    --accent: #FFD166;
    --text: #334155;
    --text-light: #64748B;
    --bg: #F8FAFC;
    --bg-card: #FFFFFF;
    --border: #E2E8F0;
    --code-bg: #F1F5F9;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 60px 0 80px;
    position: relative;
}

header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.logo-icon {
    margin-right: 10px;
    font-size: 28px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--text);
}

h1 {
    font-size: 2.5em;
    margin-bottom: 15px;
    color: white;
}

h2 {
    font-size: 1.8em;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    margin-top: 50px;
}

h3 {
    font-size: 1.4em;
    margin-top: 30px;
}

h4 {
    font-size: 1.2em;
    margin-top: 20px;
}

p {
    margin-bottom: 16px;
}

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

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

.header-subtitle {
    font-size: 1.2em;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
}

.content {
    padding: 60px 0;
    position: relative;
}

.toc {
    background-color: var(--bg-card);
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    margin-bottom: 40px;
}

.toc-title {
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text);
    display: flex;
    align-items: center;
}

.toc-title svg {
    margin-right: 10px;
}

.toc-list {
    list-style-type: none;
    columns: 2;
    column-gap: 30px;
}

.toc-list li {
    margin-bottom: 10px;
    break-inside: avoid;
}

.toc-list a {
    color: var(--text-light);
    transition: color 0.2s;
    display: flex;
    align-items: center;
}

.toc-list a:hover {
    color: var(--primary);
}

.toc-list a::before {
    content: "•";
    margin-right: 8px;
    color: var(--primary);
    font-weight: bold;
}

.section {
    margin-bottom: 60px;
}

ul, ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

li {
    margin-bottom: 8px;
}

code {
    font-family: 'Monaco', 'Consolas', monospace;
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

pre {
    background-color: var(--code-bg);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary);
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.9em;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--primary);
}

.note {
    background-color: rgba(99, 102, 241, 0.1);
    border-left: 4px solid var(--primary);
    padding: 15px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 20px;
}

.warning {
    background-color: rgba(255, 209, 102, 0.2);
    border-left: 4px solid var(--accent);
    padding: 15px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 20px;
}

.project-structure {
    font-family: 'Monaco', 'Consolas', monospace;
    background-color: var(--code-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    white-space: pre;
    overflow-x: auto;
    line-height: 1.4;
    font-size: 0.85em;
}

.code-filename {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 0.9em;
}

.steps {
    list-style-type: none;
    counter-reset: step-counter;
    margin-left: 0;
}

.steps li {
    counter-increment: step-counter;
    margin-bottom: 15px;
    position: relative;
    padding-left: 45px;
}

.steps li::before {
    content: counter(step-counter);
    background-color: var(--primary);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: 0;
    top: -1px;
    font-weight: 600;
    font-size: 0.9em;
}

.table-container {
    overflow-x: auto;
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--code-bg);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(0, 0, 0, 0.01);
}

.badge {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    border-radius: 20px;
    padding: 3px 10px;
    font-size: 0.75em;
    font-weight: 600;
    margin-right: 5px;
}

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

.badge.accent {
    background-color: var(--accent);
    color: var(--text);
}

.screenshot {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

footer {
    background-color: var(--text);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-top: 100px;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }
    
    h2 {
        font-size: 1.5em;
    }
    
    .toc-list {
        columns: 1;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}