/* AAmist site styles. Author: AAmistAI */

:root {
  --bg: #ffffff;
  --bg-panel: #f4f4f2;
  --text: #111111;
  --text-dim: #666666;
  --accent: #2b6e5c;
  --accent-hover: #3f9479;
  --border: #d9d9d4;
  --max-width: 960px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

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

/* Header. No visible divider under it. */
header {
  text-align: center;
  padding: 48px 16px 16px;
}

header h1 {
  margin: 0;
  font-size: 3rem;
  letter-spacing: 0.05em;
  font-weight: normal;
}

header h1 a {
  color: var(--text);
  text-decoration: none;
}

/* Nav. Plain text links, no boxes. */
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  margin-top: 20px;
}

nav a {
  color: var(--text);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

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

/* Sub nav, used on the custom content page */
.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 0 0 24px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.subnav a { color: var(--text-dim); text-decoration: none; }
.subnav a:hover, .subnav a.active { color: var(--accent); }

/* Content */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 16px 64px;
}

main h2 {
  font-weight: normal;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

main h3 { font-weight: normal; margin-bottom: 4px; }

.notice {
  border-left: 3px solid var(--accent);
  background: var(--bg-panel);
  padding: 12px 16px;
  margin: 16px 0;
}

/* Placeholder image slots. Replace with <img> later. */
.placeholder {
  aspect-ratio: 16 / 9;
  background: var(--bg-panel);
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
}

.placeholder.wide { aspect-ratio: 21 / 9; margin: 24px 0; }
.placeholder.tall { aspect-ratio: 3 / 4; }
.placeholder.portrait { aspect-ratio: 2 / 3; }

/* About: alternating text / image rows */
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin: 40px 0;
}

.row.flip > :first-child { order: 2; }

/* Pillars: one column per pillar */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.pillar {
  background: var(--bg-panel);
  padding: 16px;
  text-align: center;
}

.pillar h3 {
  margin: 8px 0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
}

.pillar p { font-size: 0.85rem; color: var(--text-dim); margin: 0; }
.pillar .placeholder { aspect-ratio: 1; margin-bottom: 8px; }

/* Inline SVG icons. Colour comes from currentColor, so change --accent to retint all of them. */
.pillar .icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 8px;
  color: var(--accent);
}
.pillar .icon svg { width: 100%; height: 100%; display: block; }

/* Join: flow diagram built from boxes and arrows */
.flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  margin: 32px 0;
}

.flow .step {
  flex: 1;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 16px 12px;
  text-align: center;
  font-size: 0.85rem;
}

.flow .step .num {
  display: block;
  color: var(--accent);
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.flow .arrow {
  display: flex;
  align-items: center;
  padding: 0 8px;
  color: var(--accent);
}
.flow .arrow svg { width: 28px; height: 28px; }

.flow .step .icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 4px;
  color: var(--accent);
}
.flow .step .icon svg { width: 100%; height: 100%; display: block; }

/* Custom content: icon above each section heading */
.section-icon {
  width: 44px;
  height: 44px;
  color: var(--accent);
  margin-top: 8px;
}
.section-icon svg { width: 100%; height: 100%; display: block; }
.section-icon + h3 { margin-top: 4px; }

/* preview.html: one row per icon, versions side by side */
.preview-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.preview-label {
  width: 180px;
  flex: none;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.preview-item {
  width: 110px;
  flex: none;
  background: var(--bg-panel);
  padding: 12px 8px;
  text-align: center;
}
.preview-item .icon { width: 56px; height: 56px; margin: 0 auto 6px; color: var(--accent); }
.preview-item .icon svg { width: 100%; height: 100%; display: block; }
.preview-item code { font-size: 0.7rem; color: var(--text-dim); }

/* Rules: text with a portrait on the right */
.rules-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
}

/* News: clickable rows, image on the right, a tag */
.filters { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0 24px; }

.filters button {
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 4px 12px;
  cursor: pointer;
}

.filters button.active { border-color: var(--accent); color: var(--accent); }

.post {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}

.post:hover h3 { color: var(--accent); }
.post h3 { margin: 4px 0; }
.post p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.post .meta { font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase; }

.tag {
  display: inline-block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 0 8px;
  margin-right: 8px;
}

.post.hidden { display: none; }

/* Footer. No visible divider above it. */
footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 24px 16px;
}

@media (max-width: 640px) {
  header h1 { font-size: 2.2rem; }
  nav { gap: 16px; }
  .row, .row.flip, .rules-layout, .post { grid-template-columns: 1fr; }
  .row.flip > :first-child { order: 0; }
  .flow { flex-direction: column; }
  .flow .arrow { justify-content: center; padding: 4px 0; transform: rotate(90deg); }
}

/* Content pass additions */
.lead { font-size: 1.1rem; }

.todo {
  background: #fff3c4;
  color: #6b5300;
  padding: 0 6px;
  font-size: 0.85rem;
}

.alt-names { color: var(--text-dim); font-size: 0.85rem; font-style: italic; margin-top: -8px; }

.wip {
  background: var(--bg-panel);
  border-left: 3px solid var(--border);
  padding: 10px 16px;
  margin: 8px 0 32px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.wip strong { color: var(--text); }

.faq dt { font-weight: bold; margin-top: 20px; }
.faq dd { margin: 4px 0 0; }

/* Custom content tabs */
/* Everything shows without JS. The script adds .js to <body> and then hides the unselected tabs. */
body.js .tab { display: none; }
body.js .tab.on { display: block; }
.tab h3 { margin-top: 0; }

/* Style comparison row on preview.html, larger tiles */
.preview-row.styles { flex-wrap: wrap; }
.preview-row.styles .preview-item { width: 130px; }
.preview-row.styles .preview-item .icon { width: 96px; height: 96px; }

/* preview-logo.html: logo concepts, light / dark / small */
.logo-card { margin: 32px 0; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.logo-card h3 code { font-size: 0.75rem; color: var(--text-dim); margin-left: 8px; }
.logo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: center;
}
.logo-grid > div { padding: 24px; display: flex; align-items: center; justify-content: center; }
.logo-grid svg { width: 100%; height: auto; display: block; }
.logo-light { background: var(--bg-panel); color: var(--text); }
.logo-dark { background: #17201c; color: #e9efe9; }
.logo-small { grid-column: 1 / -1; justify-content: flex-start; }
.logo-small svg { width: 180px; }
.logo-variant { margin: 20px 0 6px; font-size: 0.85rem; color: var(--text-dim); }
.logo-variant code { margin-left: 6px; }
.logo-grid svg { max-height: 240px; }

/* System pages. Author: AAmistAI */
.subnav.strip {
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 32px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 16px;
  color: var(--text);
  text-decoration: none;
}

.card:hover { border-color: var(--accent); color: var(--text); }
.card .icon { width: 40px; height: 40px; color: var(--accent); margin-bottom: 8px; }
.card h3 { margin: 0 0 4px; }
.card p { margin: 0; font-size: 0.85rem; color: var(--text-dim); }

/* Review labels on system page items. Add class "live" to body to hide them. */
.ref {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-family: monospace;
  white-space: nowrap;
  margin-left: 6px;
}

li.tag-stock .ref, li.tag-idea .ref, li.tag-leaning .ref { color: #a06a00; }
li.tag-todo .ref { color: #b00020; }
body.live .ref { display: none; }