/* =============================================================
   TEN POINT — BASE
   Resets, typography defaults, layout primitives, components.
   ============================================================= */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size:   var(--fs-body);
  line-height: var(--lh-normal);
  color:       var(--text);
  background:  var(--bg);
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; display: block; }
hr { border: 0; border-top: var(--hairline); margin: 0; }
a { color: inherit; text-decoration: none; }
a.link { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a.link:hover { text-decoration-thickness: 2px; }
button { font: inherit; color: inherit; }

/* ---------- TYPOGRAPHY ---------- */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--text-muted);
}
.eyebrow.dotted::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  vertical-align: middle;
  margin-right: 10px;
  transform: translateY(-1px);
}

.display {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 400;
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-tight);
  color: var(--text-strong);
}
h1, .h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--fs-h1); line-height: var(--lh-tight);
  letter-spacing: var(--tr-tight); color: var(--text-strong);
  margin: 0;
}
h2, .h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--fs-h2); line-height: var(--lh-snug);
  letter-spacing: var(--tr-snug); color: var(--text-strong);
  margin: 0;
}
h3, .h3 {
  font-family: var(--font-display); font-weight: 400;
  font-size: var(--fs-h3); line-height: var(--lh-snug);
  letter-spacing: var(--tr-snug); color: var(--text-strong);
  margin: 0;
}
h4, .h4 {
  font-family: var(--font-body); font-weight: 600;
  font-size: var(--fs-h4); line-height: var(--lh-snug);
  letter-spacing: -0.005em; color: var(--text-strong);
  margin: 0;
}
h5, .h5 {
  font-family: var(--font-body); font-weight: 600;
  font-size: var(--fs-h5); line-height: var(--lh-snug);
  color: var(--text-strong); margin: 0;
}
h6, .h6 {
  font-family: var(--font-body); font-weight: 600;
  font-size: var(--fs-h6); line-height: var(--lh-snug);
  color: var(--text-strong); margin: 0;
}

p { margin: 0; max-width: var(--measure); }
.lede {
  font-size: var(--fs-lead);
  line-height: var(--lh-relaxed);
  color: var(--text);
  font-weight: 400;
}
.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.mono  { font-family: var(--font-mono); font-size: 0.85em; letter-spacing: 0; }
.smallcaps { text-transform: uppercase; letter-spacing: var(--tr-wide); font-size: var(--fs-eyebrow); font-weight: 500; }

/* ---------- LAYOUT ---------- */
.page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--page-pad);
}
.section {
  padding-block: var(--s-24);
  border-top: var(--hairline);
}
.section:first-of-type { border-top: 0; }

.row { display: flex; gap: var(--s-4); }
.stack { display: flex; flex-direction: column; }
.stack-2 { display: flex; flex-direction: column; gap: var(--s-2); }
.stack-3 { display: flex; flex-direction: column; gap: var(--s-3); }
.stack-4 { display: flex; flex-direction: column; gap: var(--s-4); }
.stack-6 { display: flex; flex-direction: column; gap: var(--s-6); }
.stack-8 { display: flex; flex-direction: column; gap: var(--s-8); }
.stack-12 { display: flex; flex-direction: column; gap: var(--s-12); }

.grid-12 { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--s-6); }
.grid-2  { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-8); }
.grid-3  { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-6); }
.grid-4  { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-4); }
@media (max-width: 800px) {
  .grid-12 { grid-template-columns: repeat(6, 1fr); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- NAV (header) ---------- */
.tp-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--paper) 90%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: var(--hairline);
}
.tp-header-inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 14px var(--page-pad);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-8);
}
.tp-brand {
  display: flex; align-items: baseline; gap: 10px;
  font-family: var(--font-body); font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
  font-size: 0.78rem; color: var(--text-strong);
}
.tp-brand-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px;
  background: var(--ink-strong); color: var(--paper);
  font-family: var(--font-display); font-weight: 500;
  font-size: 13px; letter-spacing: 0;
  border-radius: 1px;
}
.tp-nav { display: flex; gap: var(--s-6); align-items: center; }
.tp-nav a {
  font-size: var(--fs-small);
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .15s, border-color .15s;
}
.tp-nav a:hover { color: var(--text-strong); }
.tp-nav a.active {
  color: var(--text-strong);
  border-bottom-color: var(--accent);
}
.tp-meta {
  display: flex; gap: var(--s-4); align-items: center;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}
.tp-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }

@media (max-width: 720px) {
  .tp-nav { display: none; }
}

/* ---------- HERO BLOCK (page header) ---------- */
.tp-hero {
  display: grid; grid-template-columns: 9fr 3fr;
  gap: var(--s-12);
  padding-block: var(--s-20) var(--s-16);
  align-items: end;
  border-bottom: var(--hairline);
}
.tp-hero h1 { font-size: clamp(2.5rem, 5vw, var(--fs-h1)); }
.tp-hero .lede { margin-top: var(--s-6); max-width: 56ch; }
.tp-hero-meta {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-faint); letter-spacing: 0.04em;
  text-align: right;
  display: flex; flex-direction: column; gap: 4px;
}
@media (max-width: 800px) {
  .tp-hero { grid-template-columns: 1fr; }
  .tp-hero-meta { text-align: left; }
}

/* ---------- FOOTER ---------- */
.tp-footer {
  border-top: var(--hairline);
  margin-top: var(--s-24);
  padding-block: var(--s-12) var(--s-10);
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-faint); letter-spacing: 0.04em;
}
.tp-footer-inner {
  max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-pad);
  display: flex; justify-content: space-between; gap: var(--s-6);
  flex-wrap: wrap;
}

/* ---------- COMPONENTS ---------- */

/* Cards */
.card {
  background: var(--surface);
  border: var(--hairline);
  padding: var(--s-6);
}
.card.tight { padding: var(--s-4); }
.card.flat  { background: transparent; }

/* Specimen frame — used to display logos, swatches, type samples */
.specimen {
  background: var(--surface);
  border: var(--hairline);
  position: relative;
  padding: var(--s-12) var(--s-8);
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
  overflow: hidden;
}
.specimen.dark { background: var(--ink-deep); color: var(--paper); }
.specimen-tag {
  position: absolute; top: 10px; left: 12px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.06em; color: var(--text-faint);
  text-transform: uppercase;
}
.specimen.dark .specimen-tag { color: oklch(0.6 0.005 75); }
.specimen-corner {
  position: absolute; top: 10px; right: 12px;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.04em; color: var(--text-faint);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 500;
  font-size: 14px; letter-spacing: 0.02em;
  padding: 11px 20px;
  border: 1px solid var(--ink-strong);
  background: var(--ink-strong); color: var(--paper);
  cursor: pointer; border-radius: 1px;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn:hover { background: var(--ink-deep); border-color: var(--ink-deep); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--text-strong); }
.btn.ghost:hover { background: var(--surface-2); }
.btn.accent { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.btn.accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn.link {
  background: transparent; border: 0; padding: 0;
  color: var(--text-strong);
  border-bottom: 1px solid var(--accent);
  border-radius: 0; padding-bottom: 2px;
  text-decoration: none;
}
.btn.link:hover { color: var(--accent); }
.btn.sm { font-size: 13px; padding: 8px 14px; }
.btn.lg { font-size: 15px; padding: 14px 26px; }

/* Form */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-muted); font-weight: 500;
}
.input, .textarea, .select {
  font-family: var(--font-body); font-size: 15px;
  padding: 12px 14px;
  background: var(--paper); color: var(--text-strong);
  border: 1px solid var(--border);
  border-radius: 1px;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.input:focus, .textarea:focus, .select:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 15%, transparent);
}
.help { font-size: 12px; color: var(--text-muted); }

/* Badge / Tag */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 9px;
  font-family: var(--font-body); font-size: 11px;
  font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--surface-2); color: var(--text-strong);
  border: 1px solid var(--border);
  border-radius: 1px;
}
.badge.accent { background: var(--accent-soft); border-color: color-mix(in oklab, var(--accent) 30%, var(--border)); color: var(--accent-deep); }
.badge.solid  { background: var(--ink-strong); color: var(--paper); border-color: var(--ink-strong); }

/* Table */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td {
  text-align: left; padding: 12px 12px;
  border-bottom: var(--hairline);
}
.table th {
  font-family: var(--font-body); font-weight: 600;
  font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
}
.table tr:hover td { background: var(--surface); }
.table .num { font-family: var(--font-mono); font-size: 13px; color: var(--text-strong); }

/* Blockquote */
.pull {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.25;
  letter-spacing: var(--tr-snug);
  color: var(--text-strong);
  border-left: 2px solid var(--accent);
  padding-left: var(--s-6);
  max-width: 60ch;
  font-style: normal;
}
.pull cite {
  display: block;
  font-family: var(--font-body); font-style: normal;
  font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted); margin-top: var(--s-4);
}

/* Misc */
.kbd {
  font-family: var(--font-mono); font-size: 11px;
  padding: 2px 6px; border: 1px solid var(--border);
  background: var(--surface); border-radius: 2px;
}
.divider {
  height: 1px; background: var(--border); width: 100%;
}
.divider.hairline-accent {
  height: 2px; background: var(--accent); width: 48px;
}