/* TFDN — website styles
   Reuses the established brand tokens (ink / paper / bronze, Fraunces / Inter / JetBrains Mono). */

:root {
  --ink: #15110D;          /* warm near-black — dark surfaces, primary text */
  --ink-soft: #2A2520;     /* raised surface on dark */
  --paper: #F4EFE8;        /* warm off-white — light bg */
  --paper-soft: #E8E1D6;   /* light surface alt */
  --text: #1F1A14;         /* body text on paper */
  --muted: #6B5F50;        /* secondary text */
  --line: rgba(31,26,20,0.08);
  --line-strong: rgba(31,26,20,0.16);
  --line-dark: rgba(244,239,232,0.12);
  --bronze: #B97A3E;
  --bronze-hi: #D69458;
  --bronze-lo: #8C5A2C;

  --mono: "JetBrains Mono", ui-monospace, monospace;
  --sans: "Inter", system-ui, sans-serif;
  --display: "Fraunces", "Times New Roman", serif;

  --maxw: 1120px;
  --pad: clamp(20px, 5vw, 56px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

a { color: inherit; }

img, svg { display: block; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---- Typographic primitives ---- */
.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze);
  margin: 0;
}
.kicker.on-dark { color: var(--bronze-hi); }

h1, h2, h3 { font-family: var(--display); font-weight: 500; letter-spacing: -0.015em; margin: 0; }

.eyebrow-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow-line::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--bronze);
}

/* ---- Logo lockup ---- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo .mark { width: 30px; height: 30px; flex: 0 0 30px; }
.logo .word {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.logo .word.on-dark { color: var(--paper); }

/* ---- Header ---- */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244,239,232,0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
header.site .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
header.site nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 36px);
}
header.site nav a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
  transition: color 0.18s ease;
}
header.site nav a:hover { color: var(--ink); }
header.site nav a.cta {
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 9px 16px;
}
header.site nav a.cta:hover { border-color: var(--bronze); color: var(--bronze-lo); }
.nav-hide-sm { }
@media (max-width: 620px) {
  .nav-hide-sm { display: none; }
}

/* ---- Hero ---- */
.hero {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.hero .wrap {
  position: relative;
  z-index: 2;
  padding-top: clamp(72px, 12vw, 140px);
  padding-bottom: clamp(72px, 12vw, 140px);
}
.hero-mark {
  width: clamp(64px, 9vw, 96px);
  height: clamp(64px, 9vw, 96px);
  margin-bottom: 36px;
}
.hero h1 {
  color: var(--paper);
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1.03;
  max-width: 16ch;
  margin: 18px 0 0;
}
.hero h1 em { font-style: italic; color: var(--bronze-hi); }
.hero .lede {
  margin: 30px 0 0;
  max-width: 52ch;
  font-size: clamp(16px, 1.5vw, 19px);
  color: rgba(244,239,232,0.72);
}
.hero .meta-row {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(244,239,232,0.55);
}
.hero .meta-row .dot { color: var(--bronze); }

/* faint contact-sheet pattern, right side */
.hero-pattern {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.5;
  pointer-events: none;
}

/* ---- Generic section ---- */
section.block { padding: clamp(64px, 9vw, 120px) 0; }
section.block.alt { background: var(--paper-soft); }

.section-head { max-width: 62ch; }
.section-head h2 {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.1;
  margin-top: 16px;
  color: var(--ink);
}
.section-head p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  max-width: 56ch;
}

/* ---- Principles grid ---- */
.principles {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}
.principles .item {
  background: var(--paper);
  padding: 32px clamp(20px, 2.4vw, 32px) 36px;
}
section.block.alt .principles .item { background: var(--paper-soft); }
.principles .item .n {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--bronze);
  letter-spacing: 0.1em;
}
.principles .item h3 {
  font-size: 22px;
  margin: 18px 0 10px;
  color: var(--ink);
}
.principles .item p { margin: 0; color: var(--muted); font-size: 15px; }
@media (max-width: 820px) {
  .principles { grid-template-columns: 1fr; }
}

/* ---- Apps ---- */
.apps { margin-top: 56px; display: flex; flex-direction: column; gap: 24px; }
.app-card {
  display: grid;
  grid-template-columns: 96px 1fr auto;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: clamp(24px, 3vw, 34px);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
section.block.alt .app-card { background: var(--paper); }
.app-card:hover { border-color: var(--bronze); }
.app-card .icon {
  width: 96px; height: 96px;
  border-radius: 22px;
  overflow: hidden;
  flex: 0 0 96px;
}
.app-card .body h3 { font-size: 27px; color: var(--ink); }
.app-card .body .tagline { margin: 4px 0 0; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--bronze-lo); text-transform: uppercase; }
.app-card .body p { margin: 14px 0 0; color: var(--muted); font-size: 15.5px; max-width: 54ch; }
.app-card .status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 8px 14px;
  white-space: nowrap;
}
.app-card .status .pulse {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--bronze);
  margin-right: 7px;
  vertical-align: middle;
}
@media (max-width: 720px) {
  .app-card { grid-template-columns: 64px 1fr; }
  .app-card .icon { width: 64px; height: 64px; flex-basis: 64px; border-radius: 16px; }
  .app-card .status { grid-column: 1 / -1; justify-self: start; }
}

/* ---- Contact ---- */
.contact-band {
  background: var(--ink);
  color: var(--paper);
}
.contact-band .wrap {
  padding: clamp(64px, 9vw, 110px) var(--pad);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.contact-band h2 { color: var(--paper); font-size: clamp(30px, 4.5vw, 52px); line-height: 1.05; max-width: 14ch; }
.contact-band .mail {
  font-family: var(--display);
  font-size: clamp(22px, 3vw, 34px);
  color: var(--bronze-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(214,148,88,0.4);
  padding-bottom: 4px;
  transition: border-color 0.2s ease;
}
.contact-band .mail:hover { border-color: var(--bronze-hi); }

/* ---- Footer ---- */
footer.site {
  background: var(--ink);
  color: rgba(244,239,232,0.7);
  border-top: 1px solid var(--line-dark);
  padding: clamp(48px, 6vw, 72px) 0 40px;
}
footer.site .cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
footer.site .word { color: var(--paper); }
footer.site .blurb { margin: 18px 0 0; font-size: 14px; max-width: 36ch; color: rgba(244,239,232,0.6); }
footer.site h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bronze-hi);
  margin: 0 0 16px;
  font-weight: 500;
}
footer.site ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
footer.site a { color: rgba(244,239,232,0.7); text-decoration: none; font-size: 14px; transition: color 0.18s ease; }
footer.site a:hover { color: var(--paper); }
footer.site .legal-line {
  margin-top: clamp(40px, 5vw, 60px);
  padding-top: 24px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(244,239,232,0.45);
}
@media (max-width: 720px) {
  footer.site .cols { grid-template-columns: 1fr 1fr; }
  footer.site .cols .brand-col { grid-column: 1 / -1; }
}

/* ---- Legal / document pages ---- */
.doc {
  padding: clamp(56px, 8vw, 100px) 0 clamp(64px, 9vw, 110px);
}
.doc .doc-head { max-width: 60ch; margin-bottom: 48px; }
.doc h1 { font-size: clamp(34px, 5vw, 56px); color: var(--ink); margin-top: 14px; }
.doc .updated { margin-top: 16px; font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: 0.04em; }
.doc-body { max-width: 70ch; }
.doc-body h2 {
  font-size: 24px;
  color: var(--ink);
  margin: 48px 0 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.doc-body h2:first-of-type { border-top: none; padding-top: 0; }
.doc-body p, .doc-body li { color: var(--text); font-size: 16px; }
.doc-body p { margin: 12px 0; }
.doc-body ul { padding-left: 22px; margin: 12px 0; }
.doc-body li { margin: 8px 0; }
.doc-body a { color: var(--bronze-lo); text-decoration: underline; text-underline-offset: 3px; }
.doc-body strong { color: var(--ink); }

.def-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
}
.def-table th, .def-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.def-table th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
  width: 38%;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}
.back-link:hover { color: var(--bronze-lo); }