/* ============================================================
   aydanhodges.com — homepage stylesheet
   No frameworks. Design tokens up top; everything derives from them.
   ============================================================ */

:root {
  /* Color — deep blue-slate console, single "notable event" amber accent */
  --bg:        #0f1519;
  --surface:   #151d23;
  --surface-2: #1a242b;
  --line:      #26323b;
  --ink:       #e9eef2;
  --muted:     #96a4af;
  --faint:     #6b7a85;
  --accent:    #e5a44b;
  --accent-dim: rgba(229, 164, 75, 0.14);

  /* Type */
  --font-display: "Space Grotesk", sans-serif;
  --font-body:    "IBM Plex Sans", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  /* Rhythm */
  --max-w: 1080px;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

/* Accessible skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--bg);
  padding: 0.5rem 1rem;
  font-family: var(--font-mono);
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(15, 21, 25, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
}

.brand img { height: 26px; width: auto; display: block; }

.brand span {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.header-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.header-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}

.header-links a:hover { color: var(--ink); }
.header-links svg { width: 18px; height: 18px; fill: currentColor; }

/* ---------- Hero ---------- */

.hero {
  padding: 6.5rem 0 5rem;
  border-bottom: 1px solid var(--line);
}

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--faint);
  margin: 0 0 1.25rem;
}
.hero-kicker .pipe { color: var(--accent); }

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 1rem;
}

.hero-role {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 42ch;
}
.hero-role strong { color: var(--ink); font-weight: 600; }

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.25rem;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  background: var(--surface);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.chip:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.cta-row { display: flex; flex-wrap: wrap; gap: 0.85rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #14100a;
}
.btn-primary:hover { background: #f0b562; transform: translateY(-1px); }

.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--line);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--muted); transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; fill: currentColor; }

/* ---------- Sections ---------- */

section { padding: 4.5rem 0; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--faint);
  margin: 0 0 0.5rem;
}
.section-eyebrow .pipe { color: var(--accent); }

.section-title {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 2.25rem;
}

/* ---------- Project grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.card.featured { border-color: rgba(229, 164, 75, 0.45); }

.card-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.9rem;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  text-wrap: balance;
  margin: 0 0 0.55rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

.card .tag-row { margin: 0.9rem 0 0; }

.card-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-decoration: none;
  margin-top: auto;
  padding-top: 1.2rem;
}
.card-link::after { content: " →"; }
.card-link:hover { text-decoration: underline; }

/* Reserve two lines of title space so descriptions and links
   align across a row regardless of title length */
@media (min-width: 641px) {
  .card h3 { min-height: 2.7em; }
}

/* ---------- References list ---------- */

.ref-list {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.ref-row {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding: 1.1rem 1.5rem;
  background: var(--surface);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: background 0.15s ease;
}
.ref-row:last-child { border-bottom: none; }
a.ref-row:hover { background: var(--surface-2); }

.ref-name {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  min-width: 10rem;
}

.ref-desc {
  color: var(--muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.ref-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  white-space: nowrap;
}
.ref-status.live { color: var(--accent); }
.ref-status.soon { color: var(--faint); }

.ref-row.disabled { cursor: default; }
.ref-row.disabled .ref-name { color: var(--muted); }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--faint);
  margin: 0;
}

.footer-links { display: flex; gap: 1rem; }
.footer-links a { color: var(--muted); transition: color 0.15s ease; }
.footer-links a:hover { color: var(--ink); }
.footer-links svg { width: 20px; height: 20px; fill: currentColor; display: block; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .hero { padding: 4.5rem 0 3.5rem; }
  .grid { grid-template-columns: 1fr; }
  .brand span { display: none; }
  .ref-row { flex-direction: column; gap: 0.25rem; }
  .ref-status { margin-top: 0.25rem; }
}

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* ============================================================
   Shared subpage components
   ============================================================ */

/* Compact hero for interior pages */
.page-hero {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.75rem;
}

.page-hero .hero-sub {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0;
  max-width: 60ch;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--faint);
  margin: 0 0 1.25rem;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--accent); margin: 0 0.4rem; }

/* ---------- Prose / article content ---------- */

.prose { max-width: 74ch; }

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 3rem 0 1rem;
  padding-top: 1rem;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  color: var(--accent);
}

.prose p { color: var(--muted); margin: 0 0 1.1rem; }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { color: var(--muted); padding-left: 1.4rem; margin: 0 0 1.25rem; }
.prose li { margin-bottom: 0.5rem; }
.prose li::marker { color: var(--accent); }
.prose ul ul { margin: 0.5rem 0 0.25rem; }
.prose img { max-width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }
.prose em { color: var(--ink); }

/* ---------- Code blocks ---------- */

.code-block {
  position: relative;
  background: #0b1014;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 0 0 1.25rem;
}

.code-block pre {
  margin: 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: #cfe3c9;
  background: none;
}

.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--faint);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); }

code.inline {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent);
  background: var(--accent-dim);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

/* ---------- Tables ---------- */

.table-wrap { overflow-x: auto; margin: 0 0 1.5rem; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.data th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--faint);
  text-align: left;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--accent);
}

table.data td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
table.data td:first-child { color: var(--ink); }
table.data tr:hover td { background: var(--surface); }

/* ---------- Info / stat cards on doc pages ---------- */

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 0 0 1.5rem;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.info-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.info-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
}
.info-card p { color: var(--muted); font-size: 0.93rem; margin: 0; }

/* ---------- Tag pills ---------- */

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0 1.25rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(229, 164, 75, 0.3);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
}

/* ---------- Sticky table of contents ---------- */

.doc-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.toc {
  position: sticky;
  top: 84px;
  border-left: 1px solid var(--line);
  padding-left: 1.15rem;
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faint);
  margin: 0 0 0.75rem;
}

.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin-bottom: 0.45rem; }
.toc a {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s ease;
}
.toc a:hover { color: var(--ink); }
.toc a.active { color: var(--accent); }

@media (max-width: 860px) {
  .doc-layout { grid-template-columns: 1fr; gap: 0; }
  .toc { position: static; border-left: none; padding-left: 0; margin-bottom: 2rem; border-bottom: 1px solid var(--line); padding-bottom: 1.5rem; }
  .info-grid { grid-template-columns: 1fr; }
}

/* ---------- Scroll reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Anchor offset for sticky header */
:target, [id] { scroll-margin-top: 84px; }