/* Claude Agent SDK Tutorial - Styles */

:root {
    --primary-color: #d97706;
    --primary-light: #fbbf24;
    --primary-dark: #b45309;
    --bg-color: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --text-color: #e4e4e7;
    --text-muted: #a1a1aa;
    --border-color: #374151;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --code-bg: #0d1117;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft JhengHei', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Layout */
.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    padding: 20px 0;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.nav-section {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0 20px;
    margin-bottom: 10px;
}

.nav-link {
    display: block;
    padding: 8px 20px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--bg-card);
    color: var(--primary-light);
}

.nav-link.active {
    background-color: var(--bg-card);
    border-left: 3px solid var(--primary-color);
    color: var(--primary-light);
}

.nav-link .stage-badge {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #fff;
    font-size: 0.7rem;
    line-height: 20px;
    text-align: center;
    margin-right: 8px;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    flex: 1;
    padding: 40px;
    max-width: 900px;
}

/* Sections */
section {
    margin-bottom: 60px;
    padding-top: 20px;
}

h2 {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin: 25px 0 15px;
}

h4 {
    font-size: 1.1rem;
    color: var(--primary-light);
    margin: 20px 0 10px;
}

p {
    margin-bottom: 15px;
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 1.2rem;
}

.card-title {
    font-size: 1.1rem;
    color: var(--text-color);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.9rem;
}

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

th {
    background-color: var(--bg-card);
    color: var(--primary-light);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(217, 119, 6, 0.1);
}

/* Code Blocks */
pre {
    background-color: var(--code-bg);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    margin: 15px 0;
    border: 1px solid var(--border-color);
}

code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    color: #e6db74;
}

.inline-code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Tips & Warnings */
.tip, .warning, .info {
    padding: 15px 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid;
}

.tip {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
}

.warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
}

.info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: #3b82f6;
}

.tip::before, .warning::before, .info::before {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
}

.tip::before {
    content: "Tip";
    color: var(--success-color);
}

.warning::before {
    content: "Warning";
    color: var(--warning-color);
}

.info::before {
    content: "Info";
    color: #3b82f6;
}

/* Lists */
ul, ol {
    margin: 15px 0;
    padding-left: 25px;
}

li {
    margin-bottom: 8px;
}

/* Links */
a {
    color: var(--primary-light);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Stage Progress */
.stage-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.stage-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
}

.stage-info h2 {
    border: none;
    padding: 0;
    margin: 0;
    font-size: 1.5rem;
}

.stage-info p {
    color: var(--text-muted);
    margin: 0;
}

/* Comparison Table */
.comparison-table th:first-child,
.comparison-table td:first-child {
    font-weight: 600;
    color: var(--primary-light);
}

/* API Reference */
.api-block {
    background-color: var(--bg-card);
    border-radius: 8px;
    margin: 20px 0;
    overflow: hidden;
}

.api-header {
    background-color: var(--bg-secondary);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.api-name {
    font-family: monospace;
    font-size: 1.1rem;
    color: var(--primary-light);
}

.api-body {
    padding: 20px;
}

/* Footer */
.footer {
    margin-top: 60px;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .container {
        flex-direction: column;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}