/* Instrumented Crutches Documentation - Consistent with web_server styling */

:root {
    --bg: #28497f;
    --panel-bg: #ffffff;
    --text: #0f172a;
    --text-light: #475569;
    --muted: #64748b;
    --border: #e5e7eb;
    --primary: #2f5696;
    --primary-hover: #1f3b68;
    --success: #10b981;
    --success-hover: #059669;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --code-bg: #f1f5f9;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* Header */
header {
    background: linear-gradient(135deg, #1f3b68 0%, #2f5696 100%);
    color: white;
    padding: 40px 24px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #ffffff;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
}

header p {
    font-size: 16px;
    opacity: 1;
    margin-bottom: 16px;
    color: #f8fafc;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Navigation */
nav {
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

nav li {
    flex: 0 1 auto;
}

nav a {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--muted);
    font-size: 14px;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

nav a:hover {
    color: var(--primary);
    background-color: #f8fafc;
}

nav a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 24px;
}

.content {
    background: var(--panel-bg);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--border);
}

/* Typography */
h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin: 32px 0 16px 0;
    border-bottom: 3px solid var(--primary);
    padding-bottom: 8px;
}

h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary);
    margin: 24px 0 12px 0;
}

h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin: 16px 0 8px 0;
}

p {
    margin-bottom: 16px;
    color: var(--text-light);
    line-height: 1.7;
}

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

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

/* Code blocks */
code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--primary);
}

pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    margin: 16px 0;
    line-height: 1.4;
}

pre code {
    background: none;
    padding: 0;
    color: var(--text);
}

/* Lists */
ul, ol {
    margin: 16px 0;
    padding-left: 20px;
}

li {
    margin: 8px 0;
    color: var(--text-light);
}

/* Blockquote */
blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--muted);
    font-style: italic;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    border: 1px solid var(--border);
}

th {
    background-color: #f8fafc;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    color: var(--primary);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

tr:hover {
    background-color: #f8fafc;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 8px;
}

.btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(54, 87, 155, 0.3);
}

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

.btn-secondary:hover {
    background-color: #475569;
}

/* Cards */
.card {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.card h3 {
    margin-top: 0;
    color: var(--primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 24px 0;
}

/* Sidebar for TOC */
.toc {
    background-color: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 24px 0;
}

.toc h4 {
    margin: 0 0 12px 0;
    color: var(--primary);
    font-weight: 600;
}

.toc ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc li {
    margin: 4px 0;
}

.toc a {
    font-size: 14px;
}

/* Alerts */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin: 16px 0;
    border-left: 4px solid;
}

.alert-info {
    background-color: #eff6ff;
    border-left-color: var(--primary);
    color: var(--text);
}

.alert-success {
    background-color: #f0fdf4;
    border-left-color: var(--success);
    color: var(--text);
}

.alert-warning {
    background-color: #fffbeb;
    border-left-color: #f59e0b;
    color: var(--text);
}

/* Footer */
footer {
    background: var(--panel-bg);
    border-top: 1px solid var(--border);
    padding: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    margin-top: 40px;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 28px;
    }

    nav ul {
        flex-direction: column;
    }

    nav li {
        flex: 1 1 100%;
    }

    .container {
        padding: 24px 16px;
    }

    .content {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

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

    h2 {
        font-size: 20px;
    }

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

    code {
        font-size: 12px;
    }
}