/* OpenTee v7 — paper & ink design system (shared) */
:root {
  --paper: #fafaf9;
  --paper-deep: #f3f2ef;
  --ink: #141414;
  --ink-soft: #50504c;
  --mute: #8a8780;
  --hair: #e2e0da;
  --hair-dark: #2c2c2a;
  --orange: #E55A1F;
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --gutter: clamp(1.25rem, 4vw, 4rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { overflow-x: clip; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--ink); color: var(--paper); }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--font-head); font-weight: 500; }

/* ---------- nav ---------- */
nav.site {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem var(--gutter);
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hair);
}
.logo {
  font-family: var(--font-head); font-weight: 600;
  font-size: 1.15rem; letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 0.4rem;
}
.logo .flag { color: var(--orange); font-size: 0.8em; }
.nav-links { display: flex; gap: 2.25rem; align-items: center; }
.nav-links a {
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--mute); transition: color 0.25s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a.contact {
  color: var(--ink);
  border: 1px solid var(--ink); border-radius: 999px;
  padding: 0.55rem 1.1rem;
  transition: background 0.25s, color 0.25s;
}
.nav-links a.contact:hover { background: var(--ink); color: var(--paper); }
@media (max-width: 768px) { .nav-links a:not(.contact) { display: none; } }

/* ---------- shared structure ---------- */
.wrap { max-width: 84rem; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.sec-label {
  font-family: var(--font-mono); font-size: 0.74rem;
  letter-spacing: 0.06em; color: var(--mute);
  display: block; margin-bottom: 2.75rem;
}
.sec-label::before { content: "/"; color: var(--ink); margin-right: 0.1em; }
section { border-top: 1px solid var(--hair); }
.reveal { opacity: 0; transform: translateY(28px); }
.band-deep { background: var(--paper-deep); }

/* ---------- page hero ---------- */
.page-hero { padding: 9.5rem 0 clamp(3rem, 8vh, 5rem); border-top: none; }
.page-hero .kicker {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--orange);
  display: block; margin-bottom: 1.25rem;
}
.page-hero h1 {
  font-size: clamp(2.35rem, 6.4vw, 5.6rem);
  line-height: 1.04; letter-spacing: -0.035em;
  max-width: 20ch;
}
.page-hero h1 .quiet { color: var(--mute); }
.page-hero h1 .accent { color: var(--orange); }
.page-hero .intro {
  margin-top: 2rem; max-width: 34rem;
  color: var(--ink-soft); font-size: 1.05rem;
}
.page-hero .hero-ctas { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; margin-top: 2.5rem; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-family: var(--font-head); font-weight: 500; font-size: 0.98rem;
  background: var(--ink); color: var(--paper);
  border-radius: 999px; padding: 0.95rem 1.7rem;
  transition: transform 0.3s cubic-bezier(.22,1,.36,1), background 0.3s;
}
.btn:hover { transform: translateY(-2px); background: #000; }
.btn .arr { transition: transform 0.3s; }
.btn:hover .arr { transform: translateX(4px); }
.btn.on-dark { background: var(--paper); color: var(--ink); }
.btn.on-dark:hover { background: #fff; }
.link-quiet {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-soft);
  border-bottom: 1px solid var(--hair); padding-bottom: 0.2rem;
  transition: border-color 0.25s, color 0.25s;
}
.link-quiet:hover { color: var(--ink); border-color: var(--ink); }
.dark .link-quiet, .link-quiet.on-dark { color: #b9b6af; border-color: var(--hair-dark); }
.dark .link-quiet:hover, .link-quiet.on-dark:hover { color: var(--paper); border-color: var(--paper); }

/* ---------- proof / stat strip ---------- */
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--hair); }
.proof-cell { padding: 2.5rem 2rem 2.5rem 0; }
.proof-cell + .proof-cell { padding-left: 2rem; border-left: 1px solid var(--hair); }
.proof-cell .big {
  font-family: var(--font-head); font-weight: 500;
  font-size: clamp(2.2rem, 4.2vw, 3.8rem);
  letter-spacing: -0.03em; line-height: 1;
}
.proof-cell .big sup { font-size: 0.45em; color: var(--mute); }
.proof-cell .desc { margin-top: 0.9rem; color: var(--ink-soft); font-size: 0.92rem; line-height: 1.5; max-width: 16rem; }
@media (max-width: 900px) {
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-cell { padding: 1.75rem 1.5rem 1.75rem 0; }
  .proof-cell:nth-child(odd) { padding-left: 0; border-left: none; }
}
@media (max-width: 520px) {
  .proof-grid { grid-template-columns: 1fr; }
  .proof-cell { padding: 1.5rem 0 !important; border-left: none !important; border-bottom: 1px solid var(--hair); }
  .proof-cell:last-child { border-bottom: none; }
}

/* ---------- editorial rows (cases, streams, essays) ---------- */
.row-item {
  display: grid;
  grid-template-columns: 4.5rem 1.2fr 1fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  padding: clamp(2.25rem, 5vh, 3.25rem) 0;
  border-top: 1px solid var(--hair);
}
.row-item:last-of-type { border-bottom: 1px solid var(--hair); }
.row-item .idx { font-family: var(--font-mono); font-size: 0.78rem; color: var(--mute); padding-top: 0.45rem; }
.row-item h3 {
  font-size: clamp(1.5rem, 2.8vw, 2.3rem);
  letter-spacing: -0.02em; line-height: 1.12; font-weight: 500;
}
.row-item .sector {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--mute);
  display: block; margin-bottom: 0.8rem;
}
.row-item .kick {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--orange);
  display: block; margin-top: 0.8rem;
}
.row-item .summary { margin-top: 1rem; color: var(--ink-soft); font-size: 0.98rem; max-width: 32rem; }
.row-item .summary strong { color: var(--ink); font-weight: 600; }
.row-item .side { align-self: start; }
.row-item .side p { color: var(--ink-soft); font-size: 0.95rem; }
.row-item .side p + p { margin-top: 0.9rem; }
.meta-table { border-top: 1px solid var(--hair); }
.meta-table .mrow {
  display: flex; justify-content: space-between; gap: 1.5rem;
  padding: 0.7rem 0; border-bottom: 1px solid var(--hair);
  font-size: 0.86rem;
}
.meta-table .k { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--mute); padding-top: 0.15rem; }
.meta-table .v { color: var(--ink); text-align: right; font-weight: 500; }
.check-list { list-style: none; }
.check-list li {
  padding: 0.55rem 0 0.55rem 1.4rem; position: relative;
  color: var(--ink-soft); font-size: 0.92rem;
  border-bottom: 1px solid var(--hair);
}
.check-list li::before { content: "→"; position: absolute; left: 0; color: var(--orange); font-size: 0.85em; top: 0.7rem; }
@media (max-width: 860px) {
  .row-item { grid-template-columns: 1fr; gap: 1.1rem; }
  .row-item .idx { padding-top: 0; }
}

/* ---------- cell grid (modules, principles, who-for) ---------- */
.cell-grid { display: grid; border-top: 1px solid var(--hair); border-left: 1px solid var(--hair); }
.cell-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cell-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.cell-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cell {
  padding: 1.9rem 1.75rem;
  border-right: 1px solid var(--hair); border-bottom: 1px solid var(--hair);
}
.cell .n { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--mute); display: block; margin-bottom: 0.8rem; }
.cell h3 { font-size: 1.1rem; letter-spacing: -0.01em; line-height: 1.3; margin-bottom: 0.5rem; }
.cell p { color: var(--ink-soft); font-size: 0.88rem; line-height: 1.55; }
.cell .tag {
  display: inline-block; margin-bottom: 0.8rem;
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--orange);
  border: 1px solid color-mix(in srgb, var(--orange) 35%, transparent);
  border-radius: 999px; padding: 0.25rem 0.7rem;
}
@media (max-width: 1024px) { .cell-grid.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 860px) { .cell-grid.cols-3 { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .cell-grid.cols-4, .cell-grid.cols-2 { grid-template-columns: 1fr; } }

/* ---------- dark band (voices / solicit) ---------- */
.dark { background: var(--ink); color: var(--paper); }
.dark .sec-label { color: #8a8780; }
.dark .sec-label::before { color: var(--paper); }
.voices-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--hair-dark); }
.voice { padding: 2.5rem 3rem 2.5rem 0; border-bottom: 1px solid var(--hair-dark); }
.voice:nth-child(even) { padding-left: 3rem; padding-right: 0; border-left: 1px solid var(--hair-dark); }
.voice blockquote {
  font-family: var(--font-head); font-weight: 400;
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
  line-height: 1.45; letter-spacing: -0.01em;
}
.voice blockquote::before { content: "\201C"; color: var(--mute); }
.voice blockquote::after { content: "\201D"; color: var(--mute); }
.voice .who {
  margin-top: 1.4rem;
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: #8a8780;
}
.voices-foot {
  margin-top: 2.5rem; text-align: center;
  font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: #8a8780;
}
.voices-foot strong { color: var(--paper); font-weight: 500; }
@media (max-width: 860px) {
  .voices-grid { grid-template-columns: 1fr; }
  .voice, .voice:nth-child(even) { padding: 1.9rem 0; border-left: none; }
}

/* ---------- closer / CTA band ---------- */
.solicit h2 {
  font-size: clamp(2rem, 5.4vw, 4.4rem);
  line-height: 1.06; letter-spacing: -0.03em;
  max-width: 22ch;
}
.solicit h2 .orange { color: var(--orange); }
.solicit .sub { margin-top: 1.75rem; max-width: 30rem; color: #b9b6af; font-size: 1rem; }
.solicit-ctas { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; margin-top: 2.5rem; }

/* ---------- steps (numbered columns) ---------- */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--hair); }
.steps-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.step-col { padding: 2.25rem 2.25rem 2.25rem 0; }
.step-col + .step-col { padding-left: 2.25rem; border-left: 1px solid var(--hair); }
.step-col .n { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--mute); }
.step-col .when { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--orange); }
.step-col h3 { font-size: 1.35rem; margin: 1rem 0 0.6rem; letter-spacing: -0.015em; }
.step-col p { color: var(--ink-soft); font-size: 0.93rem; }
@media (max-width: 1024px) { .steps-grid.cols-4 { grid-template-columns: 1fr 1fr; } .steps-grid.cols-4 .step-col:nth-child(odd) { padding-left: 0; border-left: none; } .steps-grid.cols-4 .step-col { border-bottom: 1px solid var(--hair); } }
@media (max-width: 860px) {
  .steps-grid { grid-template-columns: 1fr !important; }
  .step-col { padding: 1.75rem 0 !important; border-left: none !important; border-bottom: 1px solid var(--hair); }
  .step-col:last-child { border-bottom: none; }
}

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--hair);
  padding: 1.75rem var(--gutter);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--mute);
}
footer.site a:hover { color: var(--ink); }

/* ---------- section padding helpers ---------- */
.pad { padding-top: clamp(4rem, 10vh, 7rem); padding-bottom: clamp(4rem, 10vh, 7rem); }
.pad-lg { padding-top: clamp(4.5rem, 12vh, 9rem); padding-bottom: clamp(4.5rem, 12vh, 9rem); }

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