/* Alchemy Docs - Custom Theme (UI_SPEC.md compliant) */

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

:root {
    /* Brand Theme - Light Mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --text-primary: #1a1a1a;
    --text-secondary: #555555;
    --accent-primary: #6d28d9;
    --accent-hover: #5b21b6;
    --border-color: #e5e7eb;
    --code-bg: #f3f4f6;
    --success: #059669;
    --warning: #d97706;

    /* mdBook Overrides for Light / Default */
    --bg: var(--bg-primary);
    --fg: var(--text-primary);
    --sidebar-bg: var(--bg-secondary);
    --sidebar-fg: var(--text-secondary);
    --sidebar-active: var(--accent-primary);
    --scrollbar: var(--border-color);
    --icons: var(--accent-primary);
    --icons-hover: var(--accent-hover);
    --links: var(--accent-primary);
}

.dark, .coal, .navy, .ayu {
    /* Brand Theme - Dark Mode */
    --bg-primary: #0f1115;
    --bg-secondary: #161a22;
    --text-primary: #e6e6e6;
    --text-secondary: #8b949e;
    --accent-primary: #a78bfa;
    --accent-hover: #c4b5fd;
    --border-color: #30363d;
    --code-bg: #1f242c;
    --success: #34d399;
    --warning: #fbbf24;

    /* mdBook Overrides for Dark / Coal / Navy / Ayu */
    --bg: var(--bg-primary);
    --fg: var(--text-primary);
    --sidebar-bg: var(--bg-secondary);
    --sidebar-fg: var(--text-secondary);
    --sidebar-active: var(--accent-primary);
    --scrollbar: var(--border-color);
    --icons: var(--accent-primary);
    --icons-hover: var(--accent-hover);
    --links: var(--accent-primary);
}

/* Base Typography */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', system-ui, sans-serif;
    color: var(--text-primary);
    font-weight: 700;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    letter-spacing: -0.015em;
}

h1 { font-size: 28px; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3em; }
h2 { font-size: 24px; border-bottom: 1px solid var(--border-color); padding-bottom: 0.25em; }
h3 { font-size: 20px; }

/* Links */
a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.15s ease-in-out;
}

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

/* Sidebar Styling */
.sidebar {
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 500;
}

.sidebar .sidebar-scrollbox {
    padding: 16px 12px;
}

.sidebar a {
    color: var(--text-secondary);
    border-radius: 6px;
    padding: 6px 10px;
    display: block;
    transition: all 0.15s ease;
}

.sidebar a:hover {
    color: var(--accent-primary);
    background-color: rgba(167, 139, 250, 0.08);
    text-decoration: none;
}

.sidebar li.active > a {
    color: var(--accent-primary);
    font-weight: 600;
    background-color: rgba(167, 139, 250, 0.12);
}

.sidebar .part-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--accent-primary);
    margin-top: 20px;
    margin-bottom: 6px;
    padding-left: 10px;
}

/* Top bar Navigation */
#menu-bar {
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.menu-title {
    font-weight: 700;
    font-size: 16px;
    color: var(--accent-primary);
    letter-spacing: -0.02em;
}

/* Content Container */
.page {
    background-color: var(--bg-primary);
}

.content main {
    max-width: 860px;
    margin: 0 auto;
    padding: 32px 24px 64px;
}

/* Code Blocks & Inlines */
code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 14px;
}

:not(pre) > code {
    background-color: var(--code-bg);
    color: var(--accent-primary);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

pre {
    background-color: var(--code-bg) !important;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    overflow-x: auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    position: relative;
}

pre code {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    line-height: 1.5;
}

/* Copy Buttons */
.clip-button, .buttons button {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--accent-primary) !important;
    border-radius: 6px !important;
    padding: 4px 8px !important;
    cursor: pointer;
    transition: all 0.15s ease;
}

.clip-button:hover, .buttons button:hover {
    background: var(--accent-primary) !important;
    color: #ffffff !important;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

table th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 2px solid var(--border-color);
}

table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
}

table tr:nth-child(even) {
    background-color: rgba(125, 125, 125, 0.03);
}

/* Blockquotes / Callouts */
blockquote {
    border-left: 4px solid var(--accent-primary);
    background-color: rgba(167, 139, 250, 0.06);
    padding: 12px 18px;
    margin: 1.5em 0;
    border-radius: 0 6px 6px 0;
    color: var(--text-secondary);
}

blockquote p {
    margin: 0;
}

/* Image Fallback Resilience */
img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    min-height: 40px;
    background: var(--code-bg);
}

/* Keyboard Navigation & Focus Accessibility */
:focus-visible {
    outline: 2px solid var(--accent-primary) !important;
    outline-offset: 2px !important;
}

/* Search Bar Customization */
#searchinput {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
}

#searchinput:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(167, 139, 250, 0.25);
}

/* Mobile & Tablet Responsiveness */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .content main {
        padding: 20px 16px 48px;
    }

    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
    h3 { font-size: 18px; }

    .menu-title {
        font-size: 14px;
    }
}

/* Sidebar Expand/Collapse All Controls */
.sidebar-toggle-controls {
    display: flex;
    gap: 6px;
    padding: 10px 12px 6px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.sidebar-toggle-controls button {
    flex: 1;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Inter', system-ui, sans-serif;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.sidebar-toggle-controls button:hover {
    background: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
}

.sidebar-toggle-controls button:active {
    transform: scale(0.97);
}