/* ============================================================
   Mind the Wires — Stylesheet
   An archive-like reading experience.
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #F7F3EB;
  --text: #1F1F1F;
  --muted: #777;
  --link: #2C2C2C;
  --border: #DDD;
  --sidebar-w: 260px;
  --content-max: 720px;
}

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  font-family: 'Libre Baskerville', Georgia, 'Times New Roman', serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-weight: 500;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.65rem; line-height: 1.35; }
h2 { font-size: 1.3rem; line-height: 1.4; }
h3 { font-size: 1.1rem; line-height: 1.45; }

p {
  margin-bottom: 1.4em;
  text-align: justify;
  hyphens: auto;
}

a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s ease;
}

a:hover {
  border-bottom-color: var(--text);
}

/* --- Layout: Two-column archive --- */
.layout {
  display: flex;
}

/* --- Sidebar (fixed, left) --- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  overflow-y: auto;
  padding: 2.5rem 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--border);
  background: var(--bg);
  z-index: 10;
}

.sidebar-brand {
  margin-bottom: 2rem;
}

.sidebar-brand h1 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.sidebar-brand p {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: left;
  margin-bottom: 0;
  line-height: 1.5;
}

.sidebar nav {
  flex: 1;
}

.sidebar nav ul {
  list-style: none;
}

.sidebar nav li {
  margin-bottom: 0.15rem;
}

.sidebar nav a {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border-bottom: none;
  padding: 0.35rem 0;
  display: inline-block;
  transition: color 0.2s ease;
}

.sidebar nav a:hover,
.sidebar nav a.active {
  color: var(--text);
}

.sidebar-footer {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  line-height: 1.6;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* --- Main reading column --- */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  max-width: calc(var(--sidebar-w) + var(--content-max));
  padding: 3.5rem 3rem 6rem;
}

/* --- Sections --- */
section {
  margin-bottom: 5rem;
}

section + section {
  border-top: 1px solid var(--border);
  padding-top: 3.5rem;
}

.section-label {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: block;
}

/* --- Hero --- */
.hero h1 {
  font-size: 1.9rem;
  font-weight: 400;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  line-height: 1.4;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.hero .hero-body {
  max-width: 580px;
  margin-bottom: 2.5rem;
}

.hero .hero-body p {
  font-size: 0.95rem;
}

.btn-report {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border: 1px solid var(--text);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
  text-decoration: none;
  border-bottom: 1px solid var(--text);
}

.btn-report:hover {
  background: var(--text);
  color: var(--bg);
}

/* --- Report preview card --- */
.report-preview {
  margin-top: 3rem;
  padding: 2rem;
  border: 1px solid var(--border);
  max-width: 560px;
}

.report-preview h3 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.report-preview .meta {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.report-preview .abstract {
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

/* --- Philosophy --- */
.philosophy-content blockquote {
  margin: 2rem 0;
  padding-left: 1.2rem;
  border-left: 2px solid var(--border);
  font-style: italic;
  color: var(--muted);
}

.philosophy-content blockquote p {
  text-align: left;
}

.philosophy-content p {
  text-align: left;
}

/* --- Pipeline (How It Works) --- */
.pipeline {
  counter-reset: step;
}

.pipeline-step {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 2.2rem;
}

.pipeline-step:last-child {
  padding-bottom: 0;
}

.pipeline-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--muted);
}

.pipeline-step::after {
  content: '';
  position: absolute;
  left: 0.55rem;
  top: 1.1rem;
  width: 1px;
  height: calc(100% - 0.3rem);
  background: var(--border);
}

.pipeline-step:last-child::after {
  display: none;
}

.pipeline-step h3 {
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pipeline-step p {
  font-size: 0.88rem;
  max-width: 520px;
  text-align: left;
  margin-bottom: 0;
  color: var(--muted);
}

/* --- Architecture diagram --- */
.arch-diagram {
  margin: 2.5rem 0;
  padding: 2rem;
  border: 1px solid var(--border);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  line-height: 2;
  text-align: center;
}

.arch-diagram .arch-node {
  display: inline-block;
  padding: 0.3rem 1rem;
  border: 1px solid var(--border);
  margin: 0.2rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text);
}

.arch-diagram .arch-arrow {
  display: block;
  color: var(--muted);
  margin: 0.1rem 0;
  font-size: 0.85rem;
}

.arch-content p {
  text-align: left;
}

/* --- Reports list --- */
.reports-list {
  list-style: none;
}

.reports-list li {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.reports-list li:first-child {
  border-top: 1px solid var(--border);
}

.report-entry h3 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.report-entry .meta {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.report-entry .open-link {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

.report-entry .open-link:hover {
  border-bottom-color: var(--text);
}

/* --- About --- */
.about-content p {
  text-align: left;
}

.about-content .attribution {
  margin-top: 2rem;
  padding: 1.5rem;
  border-left: 2px solid var(--border);
  font-size: 0.88rem;
  font-style: italic;
  color: var(--muted);
  text-align: left;
}

/* --- Footer --- */
.site-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 2;
}

/* --- Drop cap --- */
.drop-cap::first-letter {
  float: left;
  font-size: 3.2em;
  line-height: 0.8;
  padding-right: 0.1em;
  padding-top: 0.05em;
  font-family: 'Libre Baskerville', Georgia, serif;
  font-weight: 700;
}

/* --- Pull quote --- */
.pull-quote {
  margin: 2.5rem 0;
  text-align: center;
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Mobile toggle --- */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.5rem 0.7rem;
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
}

/* --- Responsive --- */
@media (max-width: 860px) {
  .mobile-toggle {
    display: block;
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    width: 240px;
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,0.06);
  }

  .main {
    margin-left: 0;
    max-width: var(--content-max);
    padding: 5rem 1.8rem 4rem;
    margin-left: auto;
    margin-right: auto;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  html {
    font-size: 16px;
  }
}

/* --- Print --- */
@media print {
  .sidebar, .mobile-toggle { display: none; }
  .main { margin-left: 0; max-width: none; }
}

/* --- Report viewer (inline) --- */
.report-viewer {
  margin-bottom: 3rem;
}

.report-viewer-close {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--link);
  cursor: pointer;
  padding: 0;
  margin-bottom: 2rem;
  transition: border-color 0.2s ease;
}

.report-viewer-close:hover {
  border-bottom-color: var(--text);
}

.report-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.report-header h1 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 1.8rem;
  line-height: 1.35;
  margin-bottom: 1rem;
}

.report-header .meta {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.report-header .epigraph {
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
  border-left: 2px solid var(--border);
  padding-left: 1.2rem;
  margin-top: 1.5rem;
}

.report-body h1 {
  font-family: 'Libre Baskerville', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: 1.8rem;
  line-height: 1.35;
  margin-bottom: 1rem;
}

.report-body h2 {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 3rem;
  margin-bottom: 1.2rem;
}

.report-body h3 {
  font-family: 'IBM Plex Mono', 'Courier New', monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2rem;
  margin-bottom: 0.8rem;
}

.report-body p {
  font-size: 0.95rem;
  text-align: left;
}

.report-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.report-body blockquote {
  margin: 1.5rem 0;
  padding-left: 1.2rem;
  border-left: 2px solid var(--border);
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
}

.report-body ul.report-list {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.report-body ul.report-list li {
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  text-align: left;
}

/* --- Section fade-in --- */
section {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}