/* ============================================================
   MEDHYON — styles.css
   Design system: "field manual / precision instrument"
   Blueprint-dark palette by default, warm-paper light theme,
   hairline rules, section indexing, mono annotations,
   signal-orange accent, registration ticks.
   ============================================================ */

/* ---------- Tokens (dark default) ---------- */
:root {
  --bg:          #0b0f16;
  --bg-raised:   #121824;
  --bg-sunk:     #070a10;
  --ink:         #e9e7de;
  --ink-2:       #a8b0bd;
  --ink-3:       #6d7684;
  --line:        #242c3a;
  --line-strong: #455163;
  --accent:      #ff7438;
  --accent-bright: #ff8a50;
  --accent-tint: rgba(255, 116, 56, 0.12);
  --accent-contrast: #14100c;
  --warn:        #e0b64c;
  --warn-tint:   rgba(224, 182, 76, 0.12);
  --ok:          #5fbf82;
  --shadow:      0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px -16px rgba(0, 0, 0, 0.55);
  --header-h:    64px;
  --font-sans:   "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:   "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --ease-out:    cubic-bezier(0.22, 0.61, 0.21, 1);
}

/* ---------- Light theme overrides ---------- */
[data-theme="light"] {
  --bg:          #f2efe7;
  --bg-raised:   #faf8f2;
  --bg-sunk:     #e8e4d8;
  --ink:         #15181e;
  --ink-2:       #474e5b;
  --ink-3:       #767d8a;
  --line:        #d7d2c3;
  --line-strong: #a9a394;
  --accent:      #b0440e;
  --accent-bright: #d95a16;
  --accent-tint: rgba(176, 68, 14, 0.09);
  --accent-contrast: #fdfaf5;
  --warn:        #8a6d1a;
  --warn-tint:   rgba(138, 109, 26, 0.10);
  --ok:          #2e6b3f;
  --shadow:      0 1px 2px rgba(21, 24, 30, 0.05), 0 12px 32px -16px rgba(21, 24, 30, 0.18);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.35s ease, color 0.35s ease;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
img, svg { display: block; }
button, input, textarea { font: inherit; color: inherit; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

.wrap {
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 40px);
}

/* ---------- Registration tick corners ---------- */
.ticks {
  position: relative;
  --tick: var(--line-strong);
  background-repeat: no-repeat;
  background-image:
    linear-gradient(to right,  var(--tick), var(--tick)),
    linear-gradient(to bottom, var(--tick), var(--tick)),
    linear-gradient(to left,   var(--tick), var(--tick)),
    linear-gradient(to bottom, var(--tick), var(--tick)),
    linear-gradient(to right,  var(--tick), var(--tick)),
    linear-gradient(to top,    var(--tick), var(--tick)),
    linear-gradient(to left,   var(--tick), var(--tick)),
    linear-gradient(to top,    var(--tick), var(--tick));
  background-size:
    16px 1px, 1px 16px,
    16px 1px, 1px 16px,
    16px 1px, 1px 16px,
    16px 1px, 1px 16px;
  background-position:
    top left, top left,
    top right, top right,
    bottom left, bottom left,
    bottom right, bottom right;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s var(--ease-out), color 0.18s var(--ease-out),
              border-color 0.18s var(--ease-out), transform 0.18s var(--ease-out);
}
.btn:active { transform: translateY(1px); }

.btn-solid {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn-solid:hover { background: var(--accent-bright); }

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--ink); background: var(--accent-tint); }

.btn-arrow { font-family: var(--font-mono); font-size: 0.9em; }

.btn-small { padding: 9px 16px; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

/* ---------- Tags ---------- */
.tag {
  display: inline-block;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--line-strong);
  line-height: 1.4;
}
.tag-accent { color: var(--accent); border-color: var(--accent); }
.tag-neutral { color: var(--ink-2); }
.tag-warn { color: var(--warn); border-color: var(--warn); background: var(--warn-tint); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-right: auto;
}
.brand-word {
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.95rem;
}

.nav-list {
  display: flex;
  gap: 4px;
}
.nav-list a {
  display: block;
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.15s ease;
}
.nav-list a:hover { color: var(--accent); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  background: none;
  border: 1px solid var(--line-strong);
  padding: 8px 12px;
  cursor: pointer;
}
.nav-toggle-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; }
.nav-toggle-bars { display: inline-flex; flex-direction: column; gap: 4px; }
.nav-toggle-bars span { width: 16px; height: 1.5px; background: var(--ink); transition: transform 0.2s ease; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 0;
  color: var(--ink-2);
}
.theme-toggle:hover { color: var(--ink); }
.theme-toggle-track {
  width: 30px;
  height: 16px;
  border: 1px solid var(--line-strong);
  position: relative;
}
.theme-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  transform: translateX(14px);
  transition: transform 0.2s var(--ease-out);
}
[data-theme="light"] .theme-toggle-thumb { transform: translateX(0); }
.theme-toggle-label { font-size: 0.65rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 70% 20%, black 0%, transparent 70%);
  mask-image: radial-gradient(ellipse 90% 80% at 70% 20%, black 0%, transparent 70%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(40px, 5vw, 72px);
  align-items: center;
  padding-top: clamp(56px, 8vw, 104px);
  padding-bottom: clamp(64px, 9vw, 112px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.eyebrow-tick {
  width: 22px;
  height: 1px;
  background: var(--accent);
}

h1 {
  font-size: clamp(2.5rem, 4.6vw + 0.6rem, 4.1rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.032em;
  margin-bottom: 24px;
  text-wrap: balance;
}

.hero-sub {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 34rem;
  margin-bottom: 34px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid var(--line);
}
.hero-meta > div {
  padding: 14px 28px 4px 0;
  margin-right: 28px;
}
.hero-meta dt {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.hero-meta dd {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

/* ---------- Console (hero Q&A) ---------- */
.console {
  background-color: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 0.92rem;
}

.console-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-sunk);
}
.console-dots { display: inline-flex; gap: 5px; }
.console-dots i {
  width: 8px; height: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.console-dots i:first-child { background: var(--accent); border-color: var(--accent); }
.console-title { font-size: 0.68rem; color: var(--ink-2); letter-spacing: 0.1em; }
.console-live {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.62rem;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.live-dot {
  width: 6px; height: 6px;
  background: var(--ok);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.console-body { padding: 22px 22px 18px; }

.console-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.console-time { font-size: 0.62rem; color: var(--ink-3); letter-spacing: 0.06em; }

.console-q {
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--line-strong);
}
.console-q-text {
  font-size: 1rem;
  line-height: 1.55;
  min-height: 3.1em;
}
.caret {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: blink 0.9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.console-a-content p { margin-bottom: 12px; }
.console-a-content strong { font-weight: 600; }

/* Hidden only while JS runs the typing sequence; visible by default. */
#console-answer.console-armed { visibility: hidden; }
#console-answer.answer-visible { visibility: visible; }
#console-answer.answer-visible .console-a-content {
  animation: rise 0.6s var(--ease-out) both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.citations {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 16px 0 14px;
}
.citation {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 5px 10px;
  font-size: 0.66rem;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-tint);
  border: 1px solid var(--accent);
  border-left-width: 3px;
}

.console-verdict {
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}
.verdict-ok { color: var(--ok); font-size: 0.55rem; margin-right: 2px; }

.console-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* ---------- Sections ---------- */
.section {
  padding-block: clamp(72px, 10vw, 128px);
  scroll-margin-top: var(--header-h);
}
.section-alt {
  background: var(--bg-raised);
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 46rem;
  margin-bottom: clamp(40px, 6vw, 64px);
}
.section-index {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
  display: inline-block;
  min-width: 180px;
}
h2 {
  font-size: clamp(1.85rem, 3vw + 0.5rem, 2.9rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.028em;
  margin-bottom: 18px;
  text-wrap: balance;
}
.section-lede {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------- Cards ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.card {
  background: var(--bg);
  padding: 28px 26px 30px;
  transition: background-color 0.2s ease;
}
.section-alt .card { background: var(--bg-raised); }
.card:hover { background: var(--accent-tint); }

.card-tag {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 16px;
}
.card h3 {
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
.card p { color: var(--ink-2); font-size: 0.98rem; }

.problem-closing {
  margin-top: clamp(36px, 5vw, 56px);
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  max-width: 40rem;
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 0 28px 0 0;
}
.step + .step { padding-left: 28px; border-left: 1px solid var(--line); }
.step-num {
  display: block;
  font-size: 2.6rem;
  font-weight: 500;
  color: var(--line-strong);
  line-height: 1;
  margin-bottom: 20px;
  position: relative;
}
.step-num::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 34px;
  height: 2px;
  background: var(--accent);
}
.step-tag {
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 10px;
}
.step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  margin-bottom: 10px;
}
.step p { color: var(--ink-2); font-size: 0.95rem; }

/* ---------- Capabilities ---------- */
.cap-grid { align-items: stretch; }
.cap-card {
  display: flex;
  flex-direction: column;
}
.cap-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  color: var(--accent);
  margin-bottom: 18px;
  background: var(--bg-raised);
}
.cap-card p { flex: 0 1 auto; }
.cap-query {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
  font-size: 0.72rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

/* ---------- Trust ---------- */
.trust-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(36px, 5vw, 64px);
  align-items: start;
}

.trust-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.trust-list li:first-child { padding-top: 0; }
.trust-list li:last-child { border-bottom: none; }
.trust-item h3 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -0.014em;
  margin-bottom: 8px;
}
.trust-mark {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  flex-shrink: 0;
}
.trust-item p { color: var(--ink-2); font-size: 0.98rem; }

.escalation {
  background-color: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.escalation-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-sunk);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  color: var(--ink-2);
}
.escalation-body { padding: 22px; }
.esc-label {
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin: 18px 0 6px;
}
.esc-label:first-child { margin-top: 0; }
.escalation-body p:not(.esc-label) { font-size: 0.92rem; color: var(--ink-2); }
.esc-quote {
  font-style: italic;
  color: var(--ink) !important;
  border-left: 2px solid var(--line-strong);
  padding-left: 12px;
}
.esc-quote-honest { border-left-color: var(--accent); }
.escalation-foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* ---------- Pilot ---------- */
.pilot-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(36px, 5vw, 64px);
  align-items: start;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line-strong);
  background: var(--bg-raised);
}
.spec-table th, .spec-table td {
  text-align: left;
  vertical-align: top;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.spec-table th {
  width: 168px;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 500;
  border-right: 1px solid var(--line);
  background: var(--bg-sunk);
}
.spec-table td { font-size: 0.98rem; color: var(--ink-2); }

.pilot-aside h3 {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 18px;
}
.check-list li {
  position: relative;
  padding: 12px 0 12px 30px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 0.98rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 19px;
  width: 12px;
  height: 6px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.pilot-note {
  margin-top: 20px;
  padding: 16px 18px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  background: var(--accent-tint);
  font-size: 0.95rem;
}

/* ---------- About ---------- */
.about-layout {
  max-width: 46rem;
}

.about-lede { font-size: 1.3rem; line-height: 1.5; letter-spacing: -0.012em; margin-bottom: 18px; }
.about-copy > p:not(.about-lede) { color: var(--ink-2); margin-bottom: 16px; max-width: 40rem; }

.about-facts {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 32px;
}
.about-facts > div {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.about-facts dt {
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 3px;
}
.about-facts dd { font-size: 0.78rem; letter-spacing: 0.03em; }

/* ---------- Contact ---------- */
.section-contact {
  background: var(--bg-sunk);
  border-top: 1px solid var(--line);
}
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.contact-copy .section-index { margin-bottom: 16px; }
.contact-direct { margin-top: 28px; }
.contact-email {
  display: inline-block;
  margin-top: 8px;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}
.contact-email:hover { color: var(--accent-bright); border-bottom-color: var(--accent-bright); }
.contact-note { font-size: 0.85rem; color: var(--ink-3); }

.contact-form {
  background-color: var(--bg-raised);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: clamp(24px, 3vw, 36px);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 7px;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 11px 13px;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-tint);
}
.form-field textarea { resize: vertical; min-height: 96px; }
.form-error {
  color: var(--accent);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.form-note {
  margin-top: 14px;
  text-align: center;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding: 40px 0 48px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 32px;
  align-items: start;
}
.footer-word {
  font-weight: 700;
  letter-spacing: 0.16em;
  font-size: 1.05rem;
  margin-bottom: 6px;
}
.footer-line { font-size: 0.62rem; letter-spacing: 0.1em; color: var(--ink-3); }
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-nav a {
  font-size: 0.85rem;
  color: var(--ink-2);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--accent); }
.footer-meta {
  text-align: right;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-meta a { color: var(--ink-2); text-decoration: none; }
.footer-meta a:hover { color: var(--accent); }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-sub { max-width: 40rem; }
  .console { max-width: 620px; }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .step:nth-child(3) { padding-left: 0; border-left: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .trust-layout, .pilot-layout { grid-template-columns: 1fr; }
  .escalation { position: static; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-copy { max-width: 34rem; }
}

@media (max-width: 760px) {
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav { position: relative; }
  .nav-list {
    position: absolute;
    top: calc(100% + 17px);
    right: 0;
    flex-direction: column;
    gap: 0;
    min-width: 220px;
    background: var(--bg-raised);
    border: 1px solid var(--line-strong);
    box-shadow: var(--shadow);
    padding: 8px;
    display: none;
  }
  .nav-list.nav-open { display: flex; }
  .nav-list a { padding: 12px 14px; font-size: 0.95rem; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child { transform: translateY(2.75px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child { transform: translateY(-2.75px) rotate(-45deg); }

  .grid-3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; row-gap: 36px; }
  .step + .step, .step:nth-child(3) { padding-left: 0; border-left: none; }
  .step { border-top: 1px solid var(--line); padding-top: 24px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-meta { text-align: left; }
  .hero-meta > div { padding-right: 20px; margin-right: 20px; }
  .console-foot { flex-direction: column; gap: 4px; }
  .spec-table th { width: 118px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}