/* ==========================================================================
   Professional Dark Mode Theme for Emacs Org-mode Exports
   ========================================================================== */

:root {
    --bg-primary: #121214;       /* Deep matte background */
    --bg-secondary: #1a1a1e;     /* Section/Card background */
    --bg-accent: #26262b;        /* Table headers / code blocks */

    --text-primary: #e3e3e6;     /* High contrast off-white for body text */
    --text-muted: #a1a1aa;       /* Muted gray for captions, subtitles, dates */

    --accent: #58a6ff;           /* Crisp blue for primary links */
    --accent-hover: #8ab4f8;     /* Brighter blue for interactive states */
    --accent-dim: #21262d;       /* Subtle decorative accents / borders */

    --border-color: #30363d;     /* Clean, thin borders */
    --max-width: 920px;          /* Optimal reading line length */
}

/* Scale everything up slightly from the 16px default */
html {
    font-size: 17px;
}

/* Global Reset & Body */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.75;
    margin: 0;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#content {
    max-width: var(--max-width);
    width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: #ffffff;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1.title {
    font-size: 2.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-top: 0;
    text-align: left; /* Cleaner, more professional than centered */
}

h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
}

p {
    margin-bottom: 1.5rem;
}

/* Links */
a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* Images and Figures */
img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    display: block;
    margin: 1.5rem auto;
}

/* Hero/banner images sit edge-to-edge without inline-figure chrome */
figure.hero {
    margin: 0 0 2rem;
}

img.hero {
    border: none;
    border-radius: 0;
    margin: 0;
    width: 100%;
}

figure.hero figcaption {
    margin-top: 0.5rem;
}

.figure-number, caption, figcaption {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    margin-top: -0.5rem;
    margin-bottom: 1.5rem;
    font-style: italic;
}

/* Blockquotes: left-aligned with a subtle bar, distinct from captions */
blockquote {
    margin: 1.5rem 0;
    padding: 0.5rem 1.25rem;
    border-left: 3px solid var(--accent);
    background-color: rgba(255, 255, 255, 0.025);
    color: var(--text-muted);
}

blockquote p:last-child {
    margin-bottom: 0;
}

/* Tables (Crucial for your content index) */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.95rem;
}

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

th {
    background-color: var(--bg-accent);
    color: #ffffff;
    font-weight: 600;
}

tbody tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.025);
}

tbody tr:hover {
    background-color: var(--bg-secondary);
}

/* Images inside table cells — e.g. video thumbnails — drop the prose-margin */
td img {
    margin: 0;
    max-width: 240px;
}

/* Code Blocks & Monospace (Emacs/Git references) */
code, pre {
    font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
    font-size: 0.875rem;
    background-color: var(--bg-secondary);
    border-radius: 4px;
}

code {
    padding: 0.15rem 0.4rem;
    color: #e3b341; /* Warm amber — visible but less shouty than red in prose */
    background-color: rgba(255, 255, 255, 0.04);
}

pre {
    padding: 1rem;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    line-height: 1.45;
}

/* Lists */
ul, ol {
    padding-left: 2rem;
    margin-bottom: 1.25rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Footer / Postamble */
#postamble {
    width: 100%;
    max-width: var(--max-width);
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
}