/* ============================================================
   9eo.org — Chris Holmes
   ============================================================ */

:root {
  /* Color tokens (overridden by Tweaks) */
  --bg: #fdfcfa;
  --surface: #f6f3ed;
  --ink: #1a1815;
  --ink-soft: #3a352f;
  --mute: #756f68;
  --line: #e3ddd2;
  --line-strong: #cbc3b5;
  --accent: #2a5fb8;
  --accent-soft: #d0dcef;

  /* Type */
  --font-sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Layout */
  --content: 960px;
  --gutter: clamp(20px, 4vw, 48px);
  --density: 1;
}

[data-bg="paper"] {
  --bg: #fdfcfa;
  --surface: #f6f3ed;
  --ink: #1a1815;
  --ink-soft: #3a352f;
  --mute: #756f68;
  --line: #e3ddd2;
  --line-strong: #cbc3b5;
}

[data-bg="white"] {
  --bg: #ffffff;
  --surface: #f7f7f7;
  --ink: #0a0a0a;
  --ink-soft: #2a2a2a;
  --mute: #6b6b6b;
  --line: #ececec;
  --line-strong: #d4d4d4;
}

[data-bg="dark"] {
  --bg: #14130f;
  --surface: #1c1a16;
  --ink: #f3eee5;
  --ink-soft: #c9c2b4;
  --mute: #8a8377;
  --line: #2a2620;
  --line-strong: #3a352c;
  --accent-soft: #3a2418;
}

[data-font="geist"] {
  --font-sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
}
[data-font="plex"] {
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}
[data-font="instrument"] {
  --font-sans: "Instrument Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

[data-density="compact"] {
  --density: 0.75;
}

/* ============================================================
   Reset / base
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

::selection {
  background: var(--accent);
  color: #fff;
}

a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

a.naked, a.naked:hover { border-bottom: none; }

p { margin: 0 0 1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

/* ============================================================
   Layout primitives
   ============================================================ */

.wrap {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 720px) {
  .row { grid-template-columns: 1fr; gap: 12px; }
}

.meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 400;
  padding-top: 6px;
}

.section {
  padding: calc(80px * var(--density)) 0;
  border-top: 1px solid var(--line);
}
.section:first-of-type { border-top: none; }

.section h2 {
  font-size: clamp(28px, 3.4vw, 38px);
  letter-spacing: -0.025em;
  margin-bottom: 28px;
  font-weight: 500;
}

/* ============================================================
   Navigation
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.brand-icon {
  display: block;
  width: 22px;
  height: 22px;
  margin-right: 6px;
  flex-shrink: 0;
}
.brand .nine {
  display: inline-block;
  font-weight: 500;
  color: var(--accent);
}
.brand .dot {
  color: var(--mute);
  margin-left: 1px;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.nav-links a {
  border: none;
  color: var(--mute);
}
.nav-links a:hover { color: var(--accent); }
@media (max-width: 560px) {
  .nav-links { display: none; }
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  padding: calc(120px * var(--density)) 0 calc(100px * var(--density));
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 48px;
  align-items: start;
}
@media (max-width: 720px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
}

.hero h1 {
  font-size: clamp(48px, 8vw, 92px);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
}

.hero .tagline {
  font-size: clamp(18px, 2vw, 22px);
  color: var(--ink-soft);
  line-height: 1.45;
  max-width: 36ch;
  margin-bottom: 36px;
  font-weight: 400;
  text-wrap: balance;
}

.hero .lede {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 58ch;
}

.coord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
}
.coord::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

/* Photo slot */
.photo {
  width: 180px;
  height: 220px;
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
@media (max-width: 720px) {
  .photo { width: 140px; height: 170px; }
}

.photo image-slot {
  display: block;
  width: 100%;
  height: 100%;
}

/* Graticule decoration on hero */
[data-decor="on"] .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: -1px -1px;
  opacity: 0.5;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 30% 40%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, black 0%, transparent 70%);
}

[data-decor="off"] .coord { display: none; }
[data-decor="off"] .row-coord { display: none; }

/* ============================================================
   Talks
   ============================================================ */

.talk {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-top: 1px dashed var(--line);
}
.talk:first-child { border-top: none; padding-top: 8px; }

.talk-title {
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 6px;
}

.talk-venue {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.talk-venue .dot {
  margin: 0 8px;
  color: var(--line-strong);
}

.talk-abstract {
  color: var(--ink-soft);
  max-width: 60ch;
  margin-bottom: 14px;
  font-size: 16px;
}

.talk-links {
  display: flex;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.talk-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom-color: var(--line);
}
.talk-links a::before {
  content: "→";
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 14px;
}

/* ============================================================
   Projects
   ============================================================ */

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}
.project {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  display: block;
  border-right: none;
  border-left: none;
  position: relative;
}
.project:nth-child(odd) {
  padding-right: 24px;
  border-right: 1px solid var(--line);
}
.project:nth-child(even) {
  padding-left: 24px;
}
@media (max-width: 720px) {
  .project { padding: 22px 0 !important; border-right: none !important; }
}

.project-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.project-name {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.role-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 2px 7px;
  border: 1px solid currentColor;
  border-radius: 999px;
  white-space: nowrap;
}
.type-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  padding: 2px 7px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  white-space: nowrap;
}
.project-desc {
  color: var(--ink-soft);
  font-size: 15.5px;
  margin-bottom: 10px;
}
.project-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: lowercase;
}

/* ============================================================
   Boards & history list
   ============================================================ */

.list {
  display: flex;
  flex-direction: column;
}
.list-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.list-item:first-child { border-top: none; padding-top: 4px; }
.list-item .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
}
.list-item .body {
  font-size: 16.5px;
}
.list-item .body em {
  font-style: normal;
  color: var(--mute);
}
@media (max-width: 560px) {
  .list-item { grid-template-columns: 1fr; gap: 4px; }
}

/* ============================================================
   Writing
   ============================================================ */

.writing-card {
  display: block;
  padding: 22px 24px;
  border: 1px solid var(--line);
  background: var(--surface);
  margin-bottom: 12px;
}
.writing-card:hover {
  border-color: var(--accent);
  color: inherit;
}
.writing-card .where {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.writing-card .blurb {
  font-size: 16px;
  color: var(--ink-soft);
}
.writing-note {
  color: var(--mute);
  font-size: 14px;
  margin-top: 18px;
  font-style: italic;
}

/* ============================================================
   Contact / footer
   ============================================================ */

.contact-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  align-items: center;
}
.contact-row a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}
.contact-row a:hover { color: var(--accent); border-color: var(--accent); }

.footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 60px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer .scale {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer .scale-bar {
  display: inline-block;
  width: 60px;
  height: 1px;
  background: var(--line-strong);
  position: relative;
}
.footer .scale-bar::before,
.footer .scale-bar::after {
  content: "";
  position: absolute;
  top: -3px;
  width: 1px;
  height: 7px;
  background: var(--line-strong);
}
.footer .scale-bar::before { left: 0; }
.footer .scale-bar::after { right: 0; }

/* ============================================================
   Tweaks-panel scoping (don't let panel inherit weird styles)
   ============================================================ */

#tweaks-mount, #tweaks-mount * {
  text-transform: none;
  letter-spacing: normal;
}