/* FRTB SA Calculator — institutional landing page
   Parchment / ivory aesthetic, editorial serif headings, IBM Plex Sans body,
   IBM Plex Mono for hashes & code chips. Single rust accent. */

:root {
  /* Themes drive these. Defaults = parchment. */
  --bg:        #f3ede0;
  --bg-2:      #ebe3d2;
  --paper:     #fbf8f1;
  --ink:       #14181f;
  --ink-2:     #2a2f38;
  --muted:     #6f6a5e;
  --muted-2:   #968f80;
  --rule:      #d8cfba;
  --rule-soft: #e6dec9;
  --accent:    #8a2a17;       /* oxblood / FT pink-red */
  --accent-2:  #4a3019;       /* tobacco */
  --good:      #1f6b3a;
  --warn:      #946000;
  --bad:       #8a2a17;

  --serif: 'Source Serif 4', 'Source Serif Pro', 'Iowan Old Style', Georgia, serif;
  --sans:  'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --max: 1240px;
  --gutter: 32px;
}

/* Theme variants */
[data-theme="paper"] {
  --bg:        #f7f5f0;
  --bg-2:      #efece4;
  --paper:     #ffffff;
  --rule:      #e3dfd3;
  --rule-soft: #ece8db;
}
[data-theme="slate"] {
  --bg:        #14181f;
  --bg-2:      #1c2129;
  --paper:     #1f242d;
  --ink:       #f4ece0;
  --ink-2:     #d6cdbe;
  --muted:     #8b8678;
  --muted-2:   #6a6558;
  --rule:      #2d333d;
  --rule-soft: #262b34;
  --accent:    #d97a4f;
  --accent-2:  #c2b59a;
  --good:      #6cc28a;
  --warn:      #e0b256;
  --bad:       #e08070;
}

[data-accent="navy"] {
  --accent:   #0f2540;
  --accent-2: #2d4a6b;
}
[data-accent="forest"] {
  --accent:   #1f4a35;
  --accent-2: #2d5e44;
}
[data-accent="ink"] {
  --accent:   #14181f;
  --accent-2: #2a2f38;
}
[data-theme="slate"][data-accent="navy"]   { --accent: #6ea4dc; }
[data-theme="slate"][data-accent="forest"] { --accent: #6cc28a; }
[data-theme="slate"][data-accent="ink"]    { --accent: #c2b59a; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --- Type system --- */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: clamp(40px, 5.2vw, 68px); line-height: 1.04; margin: 0; letter-spacing: -0.025em; }
h2 { font-size: clamp(28px, 2.6vw, 36px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.02em; }
h3 { font-size: 18px; line-height: 1.3; margin: 0; }
h4 { font-size: 14px; margin: 0; font-family: var(--sans); font-weight: 600; letter-spacing: 0; }
p  { margin: 0; color: var(--ink-2); }

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--accent); }

code, .mono {
  font-family: var(--mono);
  font-size: 0.86em;
}
code {
  background: var(--bg-2);
  padding: 1px 6px;
  border-radius: 2px;
  border: 1px solid var(--rule-soft);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow.accent { color: var(--accent); }

/* --- Top regulatory bar --- */
.regbar {
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 0;
}
.regbar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex; gap: 28px; flex-wrap: wrap;
  justify-content: space-between; align-items: center;
}
.regbar-inner .pulse {
  display: inline-flex; align-items: center; gap: 8px;
}
.regbar-inner .pulse::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: #5cc28a; box-shadow: 0 0 0 0 rgba(92, 194, 138, 0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(92, 194, 138, 0.6); }
  70%  { box-shadow: 0 0 0 6px rgba(92, 194, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(92, 194, 138, 0); }
}

/* --- Header --- */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.header-inner {
  max-width: var(--max); margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--serif);
  font-size: 18px;
}
.brand-mark {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--bg);
  font-family: var(--mono); font-size: 12px; font-weight: 600;
  letter-spacing: 0;
}
.brand .name { font-weight: 600; letter-spacing: -0.01em; }
.brand .sub  {
  display: block; font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
  margin-top: -2px;
}
header nav {
  display: flex; align-items: center; gap: 28px;
  font-size: 13px;
}
header nav a {
  color: var(--ink-2);
  border-bottom: 1px solid transparent;
}
header nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }
header nav a.cta {
  background: var(--ink); color: var(--bg);
  padding: 9px 16px;
  font-weight: 500;
  border: 0;
}
header nav a.cta:hover { background: var(--accent); color: #fff; border: 0; }

/* --- Layout primitives --- */
main { display: block; }
.shell { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 96px 0; border-top: 1px solid var(--rule); }
.section.no-rule { border-top: 0; }
.section .header-row {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 64px;
  margin-bottom: 48px;
  align-items: end;
}
.section .header-row h2 { margin: 8px 0 0; }
.section .header-row .lead {
  font-size: 17px; color: var(--ink-2);
  font-family: var(--serif); line-height: 1.45;
  text-wrap: pretty;
}

/* --- Hero --- */
.hero {
  padding: 80px 0 96px;
  border-bottom: 1px solid var(--rule);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 80px;
  align-items: start;
}
.hero-eyebrow {
  display: flex; gap: 16px; align-items: center;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-eyebrow .div { width: 24px; height: 1px; background: var(--muted-2); }
.hero h1 .ink-accent { color: var(--accent); font-style: italic; }
.hero .lede {
  margin: 32px 0 0;
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: pretty;
}
.hero .ledger {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.ledger-cell {
  padding: 20px 24px 20px 0;
  border-right: 1px solid var(--rule);
}
.ledger-cell:last-child { border-right: 0; padding-right: 0; }
.ledger-cell .num {
  font-family: var(--serif);
  font-size: 32px;
  letter-spacing: -0.02em;
  display: block;
}
.ledger-cell .lbl {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-top: 2px;
}

.hero-cta {
  margin-top: 40px;
  display: flex; gap: 12px; flex-wrap: wrap; align-items: center;
}
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px;
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  letter-spacing: 0.005em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.secondary:hover { background: var(--ink); color: var(--bg); }
.btn .arrow { font-family: var(--mono); }

.hero-note {
  margin-top: 24px;
  font-size: 12.5px;
  color: var(--muted);
  max-width: 56ch;
}

/* --- Hero merkle visualization --- */
.merkle {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 28px;
  position: relative;
}
.merkle::before {
  content: 'PROVENANCE / LIVE'; position: absolute;
  top: -1px; right: -1px;
  background: var(--ink); color: var(--bg);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  padding: 6px 12px;
}
.merkle-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px; margin-bottom: 18px;
}
.merkle-head .left { color: var(--ink); font-weight: 600; }

.merkle-row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule-soft);
}
.merkle-row:last-child { border-bottom: 0; }
.merkle-row .tag {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 8px;
  text-align: center;
  border: 1px solid var(--rule);
  color: var(--muted);
  background: var(--bg-2);
  align-self: start;
  margin-top: 2px;
}
.merkle-row.leaf .tag { color: var(--ink-2); border-color: var(--rule); }
.merkle-row.fn   .tag { color: var(--accent); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--paper)); }
.merkle-row.root .tag { color: var(--bg); background: var(--ink); border-color: var(--ink); }
.merkle-row .body .label {
  font-family: var(--sans); font-size: 13px; color: var(--ink); font-weight: 500;
}
.merkle-row .body .meta {
  font-family: var(--mono); font-size: 10.5px; color: var(--muted);
  margin-top: 2px; letter-spacing: 0.04em;
}
.merkle-row .body .hash {
  display: block;
  font-family: var(--mono); font-size: 12px; color: var(--ink);
  margin-top: 6px;
  word-break: break-all;
  letter-spacing: -0.01em;
}
.merkle-row.root .body .hash { color: var(--accent); font-weight: 600; }
.merkle-foot {
  margin-top: 18px;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 11px; color: var(--muted);
}
.merkle-foot .ok { color: var(--good); }
.merkle-foot .ok::before { content: '✓ '; }

/* --- Marquee / regulator strip --- */
.regstrip {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}
.regstrip-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex; align-items: center; gap: 56px;
  font-family: var(--mono); font-size: 12px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted-2);
  flex-wrap: wrap;
}
.regstrip-label {
  color: var(--accent); font-weight: 600; flex-shrink: 0;
}
.regstrip-items { display: flex; gap: 40px; flex-wrap: wrap; }
.regstrip-items span { color: var(--ink-2); font-weight: 500; }
.regstrip-items span small {
  display: block; color: var(--muted-2); font-weight: 400;
  font-size: 10px; margin-top: 2px;
}

/* --- Feature grid --- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.feature {
  padding: 36px 32px 40px;
  background: var(--bg);
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.feature .num {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.14em; color: var(--muted);
  margin-bottom: 22px;
}
.feature h3 {
  font-family: var(--serif); font-size: 24px; line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: -0.015em;
}
.feature p { font-size: 14.5px; line-height: 1.6; color: var(--ink-2); }
.feature .footnote {
  margin-top: 20px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap;
}
.feature .footnote span {
  border: 1px solid var(--rule);
  padding: 3px 8px;
  background: var(--paper);
}

/* --- Flow --- */
.flow {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.flow-step {
  padding: 32px 28px 36px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  background: var(--bg);
}
.flow-step .step-num {
  font-family: var(--serif);
  font-size: 38px; line-height: 1;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.flow-step h3 {
  font-family: var(--sans); font-size: 15px; font-weight: 600;
  margin-bottom: 8px; letter-spacing: 0;
}
.flow-step p {
  font-size: 13.5px; line-height: 1.6; color: var(--ink-2);
}
.flow-step .endpoint {
  font-family: var(--mono); font-size: 11.5px;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 6px 10px;
  display: inline-block;
  margin-bottom: 10px;
  color: var(--ink);
}
.flow-step .endpoint .verb { color: var(--accent); font-weight: 600; }

/* --- Modes --- */
.modes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.mode-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 32px 28px;
  position: relative;
  display: flex; flex-direction: column;
  min-height: 320px;
}
.mode-card .mode-status {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 12px;
}
.mode-card .mode-name {
  font-family: var(--mono);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: lowercase;
  padding: 6px 12px;
  display: inline-block;
  margin-bottom: 18px;
  width: fit-content;
}
.mode-card[data-tone="warn"]  .mode-name { background: color-mix(in srgb, var(--warn) 14%, var(--paper)); color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); }
.mode-card[data-tone="gate"]  .mode-name { background: color-mix(in srgb, var(--accent) 12%, var(--paper)); color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.mode-card[data-tone="block"] .mode-name { background: var(--ink); color: var(--bg); border: 1px solid var(--ink); }

.mode-card .mode-tagline {
  font-family: var(--serif); font-size: 22px; line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.015em;
}
.mode-card p { font-size: 13.5px; line-height: 1.6; color: var(--ink-2); }
.mode-card .mode-code {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: 11px;
  color: var(--muted); display: flex; justify-content: space-between;
}
.mode-card .mode-code strong {
  font-weight: 600; color: var(--ink);
}

/* --- Verifier --- */
.verifier-table {
  background: var(--paper);
  border: 1px solid var(--rule);
}
.verifier-table .vt-row {
  display: grid;
  grid-template-columns: 280px 1fr 60px;
  gap: 28px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.verifier-table .vt-row:last-child { border-bottom: 0; }
.verifier-table .vt-row .vt-code {
  font-family: var(--mono); font-size: 12px;
  color: var(--accent); font-weight: 600;
  letter-spacing: 0.02em;
}
.verifier-table .vt-row .vt-desc {
  font-size: 14px; color: var(--ink-2); line-height: 1.55;
}
.verifier-table .vt-row .vt-status {
  font-family: var(--mono); font-size: 11px;
  text-align: right; color: var(--good);
}
.verifier-table .vt-row .vt-status::before { content: '✓ caught'; }

/* --- Screenshots --- */
.shots {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.shot {
  background: var(--paper);
  border: 1px solid var(--rule);
  display: flex; flex-direction: column;
  margin: 0;
}
.shot.span-7 { grid-column: span 7; }
.shot.span-5 { grid-column: span 5; }
.shot.span-6 { grid-column: span 6; }
.shot.span-4 { grid-column: span 4; }
.shot a {
  display: block;
  background: var(--bg-2);
  border-bottom: 1px solid var(--rule);
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 0;
}
.shot a:hover { border: 0; }
.shot img {
  display: block; width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02);
  transition: transform .4s ease;
}
.shot a:hover img { transform: scale(1.015); }
.shot figcaption {
  padding: 18px 22px 22px;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.55;
}
.shot figcaption .tab {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
  display: block; margin-bottom: 6px;
}
.shot figcaption strong { color: var(--ink); font-weight: 600; }

/* --- Roadmap --- */
.legend {
  display: flex; gap: 16px; margin-bottom: 28px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase;
}
.legend .b {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 10px; border: 1px solid var(--rule);
  color: var(--muted); background: var(--paper);
}
.legend .b.shipped { color: var(--good); border-color: color-mix(in srgb, var(--good) 35%, var(--rule)); }
.legend .b.in_progress { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, var(--rule)); }
.legend .b.planned { color: var(--muted); }
.legend .b::before {
  content: '●'; font-size: 10px;
}
.legend .b.shipped::before { content: '✓'; }
.legend .b.in_progress::before { content: '◐'; }
.legend .b.planned::before { content: '○'; }

.phases { display: grid; gap: 0; border-top: 1px solid var(--rule); }
.phase {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  padding: 36px 0;
  border-bottom: 1px solid var(--rule);
}
.phase-meta .phase-id {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.14em; color: var(--muted);
  margin-bottom: 6px;
}
.phase-meta h3 {
  font-family: var(--serif); font-size: 22px; line-height: 1.2;
  letter-spacing: -0.015em; margin-bottom: 8px;
}
.phase-meta .summary {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.55;
  margin-bottom: 14px;
}
.phase-items { display: grid; gap: 0; }
.phase-item {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--rule-soft);
  font-size: 13.5px; line-height: 1.55;
  align-items: baseline;
}
.phase-item:first-child { border-top: 0; }
.phase-item .marker {
  font-family: var(--mono); font-size: 13px; font-weight: 700;
}
.phase-item[data-status="shipped"] .marker { color: var(--good); }
.phase-item[data-status="in_progress"] .marker { color: var(--warn); }
.phase-item[data-status="planned"] .marker { color: var(--muted); }
.phase-item .item-title { color: var(--ink); font-weight: 500; }
.phase-item .item-detail { color: var(--muted); display: block; margin-top: 2px; font-size: 12.5px; line-height: 1.5; }

/* --- Self-host two-col --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.two-col h3 {
  font-family: var(--serif); font-size: 22px; margin-bottom: 12px;
  letter-spacing: -0.015em;
}
.two-col p { font-size: 14px; color: var(--ink-2); margin-bottom: 18px; line-height: 1.6; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 13.5px; }
.checks li {
  padding-left: 22px; position: relative; color: var(--ink-2); line-height: 1.5;
}
.checks li::before {
  content: '✓'; position: absolute; left: 0; top: 1px;
  color: var(--accent); font-weight: 700;
}
.checks li code { background: transparent; border: 0; padding: 0; color: var(--ink); }

.terminal {
  background: var(--ink);
  color: var(--bg);
  padding: 24px 26px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  border: 1px solid var(--ink);
  margin-bottom: 24px;
}
.terminal .prompt { color: var(--accent); }
.terminal .out { color: color-mix(in srgb, var(--bg) 60%, transparent); }
[data-theme="slate"] .terminal { background: #0a0d12; border-color: #0a0d12; color: #e8dfd0; }
[data-theme="slate"] .terminal .prompt { color: #d97a4f; }

/* --- Contact --- */
.contact-wrap {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 56px 56px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.contact-wrap h2 { margin-bottom: 16px; }
.contact-wrap .lead {
  font-family: var(--serif); font-size: 18px; line-height: 1.5;
  color: var(--ink-2); text-wrap: pretty;
}
.contact-wrap .lead-list {
  list-style: none; padding: 0; margin: 24px 0 0;
  font-size: 13px; color: var(--muted); display: grid; gap: 10px;
}
.contact-wrap .lead-list li {
  padding-left: 18px; position: relative;
}
.contact-wrap .lead-list li::before {
  content: '→'; position: absolute; left: 0; color: var(--accent); font-family: var(--mono);
}
.contact-form { display: grid; gap: 14px; }
.contact-form label {
  display: grid; gap: 6px;
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}
.contact-form input,
.contact-form textarea {
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 12px 14px;
  font-family: var(--sans);
  font-size: 14px;
  text-transform: none; letter-spacing: 0;
  outline: none;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--ink); background: var(--paper); }
.contact-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; }
.contact-actions {
  display: flex; align-items: center; gap: 16px; margin-top: 6px;
}
.contact-actions button {
  background: var(--ink); color: var(--bg);
  border: 1px solid var(--ink);
  padding: 14px 28px;
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: background .15s;
}
.contact-actions button:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.contact-status { font-size: 12.5px; color: var(--muted); }
.contact-status.success { color: var(--good); }
.contact-status.error   { color: var(--bad); }

/* --- Footer --- */
footer.site-footer {
  border-top: 1px solid var(--rule);
  background: var(--bg-2);
  padding: 56px 0 32px;
  margin-top: 64px;
  font-size: 12.5px;
  color: var(--muted);
}
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  padding: 0 var(--gutter);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-grid h5 {
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink);
  margin: 0 0 14px;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-grid a { color: var(--ink-2); border-bottom: 1px solid transparent; }
.footer-grid a:hover { color: var(--ink); border-bottom-color: var(--ink-2); }
.footer-blurb {
  font-family: var(--serif); font-size: 14px; line-height: 1.5;
  color: var(--ink-2); max-width: 38ch;
  margin-top: 8px;
}
.footer-bottom {
  border-top: 1px solid var(--rule);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--muted);
}
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* --- Responsive --- */
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .section .header-row { grid-template-columns: 1fr; gap: 16px; }
  .feature-grid, .flow { grid-template-columns: 1fr; }
  .modes { grid-template-columns: 1fr; }
  .shots { grid-template-columns: 1fr; }
  .shot.span-7, .shot.span-5, .shot.span-6, .shot.span-4 { grid-column: span 1; }
  .phase { grid-template-columns: 1fr; gap: 16px; }
  .verifier-table .vt-row { grid-template-columns: 1fr; gap: 8px; }
  .verifier-table .vt-row .vt-status { text-align: left; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 32px; padding: 32px 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --gutter: 20px; }
  header nav { gap: 12px; font-size: 12px; }
  header nav a:not(.cta) { display: none; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 64px; }
  .hero .ledger { grid-template-columns: 1fr; }
  .ledger-cell { border-right: 0; border-bottom: 1px solid var(--rule); }
  .ledger-cell:last-child { border-bottom: 0; }
  .contact-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}