/* =============================================================
   Simthetica — landing page styles (built on PilotID tokens)
   ============================================================= */

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

html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--night-slate);
  color: var(--fg);
  overflow-x: hidden;
}
::selection { background: var(--signal-teal); color: var(--night-slate); }

/* ---- Background scene (fixed, low-brightness) ---------------- */
#bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
#bg-scene canvas { width: 100%; height: 100%; display: block; }
/* protection scrims so copy always reads */
#bg-scrim {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(120% 80% at 70% 0%, rgba(5,8,20,0.20) 0%, rgba(5,8,20,0.78) 60%, rgba(5,8,20,0.94) 100%),
    linear-gradient(180deg, rgba(5,8,20,0.55) 0%, rgba(5,8,20,0.35) 30%, rgba(5,8,20,0.62) 100%);
}

#page { position: relative; z-index: 2; }

.wrap {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
  width: 100%;
}
.wrap-narrow { max-width: 920px; }

/* ---- Eyebrow / shared type --------------------------------- */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--teal-300);
  display: flex;
  width: fit-content;
  max-width: 100%;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-5) 0;
}
.eyebrow::before {
  content: '';
  width: 18px; height: 1px;
  background: var(--teal-400);
}
.eyebrow.muted { color: var(--fg-dim); }
.eyebrow.muted::before { background: var(--fg-faint); }

.mono { font-family: var(--font-mono); }

.section { padding: var(--space-24) 0; position: relative; }
.section-tight { padding: var(--space-20) 0; }
.section-head { max-width: 760px; }
.section-head h2 { margin: 0 0 var(--space-5) 0; font-size: var(--fs-40); }
.section-head .lede {
  font-size: var(--fs-18);
  line-height: var(--lh-relaxed);
  color: var(--fg-muted);
  margin: 0;
}
.divider-rule { height: 1px; background: var(--hairline); border: none; margin: 0; }

/* =============================================================
   NAV
   ============================================================= */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: 64px;
  display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-slow) var(--ease-standard),
              border-color var(--dur-slow) var(--ease-standard),
              backdrop-filter var(--dur-slow) var(--ease-standard);
}
.nav.scrolled {
  background: rgba(8,11,22,0.72);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--hairline);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); }
.brand { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; }
.brand .mark { width: 26px; height: 26px; flex: none; }
.brand .word {
  font-family: var(--font-display);
  font-weight: 600; font-size: var(--fs-18);
  letter-spacing: -0.01em; color: var(--paper-white);
}
.nav-links { display: flex; align-items: center; gap: var(--space-2); }
.nav-link {
  font-size: var(--fs-14); font-weight: 500;
  color: var(--fg-muted);
  padding: 8px 12px; border-radius: var(--radius-md);
  cursor: pointer; background: none; border: none;
  transition: color var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard);
}
.nav-link:hover { color: var(--paper-white); background: rgba(255,255,255,0.05); }
.nav-right { display: flex; align-items: center; gap: var(--space-4); }

/* =============================================================
   BUTTONS
   ============================================================= */
.btn {
  font-family: var(--font-body); font-size: var(--fs-14); font-weight: 600;
  padding: 11px 18px; border-radius: var(--radius-md);
  border: 1px solid transparent; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard);
  text-decoration: none; white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--signal-teal); color: var(--night-slate); }
.btn-primary:hover { background: var(--teal-500); color: var(--night-slate); }
.btn-secondary { background: transparent; color: var(--paper-white); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--skyline-indigo); background: var(--surface-2); }
.btn-ghost { background: transparent; color: var(--fg-muted); }
.btn-ghost:hover { background: rgba(255,255,255,0.06); color: var(--paper-white); }
.btn-lg { padding: 14px 24px; font-size: var(--fs-15); }
.btn-block { width: 100%; }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--night-slate), 0 0 0 4px var(--signal-teal); }

/* =============================================================
   HERO
   ============================================================= */
.hero { padding: clamp(64px, 12vh, 140px) 0 var(--space-20); }
.hero-inner { max-width: 880px; }
.tagline-lockup {
  display: flex; width: fit-content; max-width: 100%; align-items: center; gap: 10px;
  padding: 7px 14px 7px 10px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-pill);
  background: rgba(11,183,167,0.06);
  margin-bottom: var(--space-6);
}
.tagline-lockup .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--signal-teal);
  box-shadow: 0 0 0 0 rgba(11,183,167,0.6);
  animation: beacon 2.4s var(--ease-standard) infinite;
}
@keyframes beacon {
  0%   { box-shadow: 0 0 0 0 rgba(11,183,167,0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(11,183,167,0); }
  100% { box-shadow: 0 0 0 0 rgba(11,183,167,0); }
}
.tagline-lockup .txt {
  font-family: var(--font-body); font-size: var(--fs-13); font-weight: 500;
  color: var(--fg-muted); letter-spacing: 0;
}
.tagline-lockup .txt em { color: var(--paper-white); font-style: normal; font-weight: 600; }

.hero h1 {
  font-size: clamp(2.6rem, 5.6vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0 0 var(--space-6) 0;
  text-wrap: balance;
}
.hero h1 .glow { color: var(--teal-300); }
.hero .sub {
  font-size: clamp(var(--fs-16), 2.1vw, var(--fs-20));
  line-height: var(--lh-relaxed);
  color: var(--fg-muted);
  max-width: 660px;
  margin: 0 0 var(--space-8) 0;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.hero-support {
  margin-top: var(--space-6);
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--fs-13); color: var(--fg-dim);
}
.hero-support svg { width: 15px; height: 15px; color: var(--teal-400); flex: none; }

/* live telemetry strip under hero */
.telem-strip {
  margin-top: var(--space-16);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: rgba(21,25,35,0.55);
  backdrop-filter: blur(6px);
  display: grid; grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
}
.telem-cell { padding: var(--space-5) var(--space-6); border-right: 1px solid var(--hairline); }
.telem-cell:last-child { border-right: none; }
.telem-cell .k {
  font-family: var(--font-body); font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: var(--tracking-caps);
  color: var(--fg-dim); margin-bottom: 8px; display: block;
}
.telem-cell .v {
  font-family: var(--font-mono); font-size: var(--fs-24);
  color: var(--paper-white); letter-spacing: -0.01em; line-height: 1;
}
.telem-cell .v small { font-size: var(--fs-13); color: var(--fg-dim); margin-left: 4px; }

/* =============================================================
   PILOT VALUE  (split layout)
   ============================================================= */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: var(--space-16); align-items: center; }
.feature-list { list-style: none; margin: var(--space-8) 0 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-1); }
.feature-list li {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--hairline);
  font-size: var(--fs-15); color: var(--fg-muted); line-height: var(--lh-snug);
}
.feature-list li .tick {
  flex: none; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; margin-top: 1px;
  background: rgba(11,183,167,0.14); color: var(--teal-300);
}
.feature-list li .tick svg { width: 13px; height: 13px; }

/* logbook visual card */
.logbook {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--panel-charcoal);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.logbook-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--hairline);
  background: rgba(255,255,255,0.015);
}
.logbook-head .ttl { font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-dim); letter-spacing: 0.04em; text-transform: uppercase; }
.logbook-row {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: var(--space-4); align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--hairline);
}
.logbook-row:last-child { border-bottom: none; }
.logbook-row .route { font-family: var(--font-mono); font-size: var(--fs-14); color: var(--paper-white); }
.logbook-row .desc { font-size: var(--fs-12); color: var(--fg-dim); }
.logbook-row .phase { font-size: var(--fs-12); color: var(--fg-muted); }

/* pills */
.pill {
  font-family: var(--font-body); font-size: var(--fs-12); font-weight: 600;
  padding: 4px 10px; border-radius: var(--radius-pill);
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
.pill.verified { background: rgba(11,183,167,0.15); color: var(--teal-300); }
.pill.pending { background: rgba(245,166,35,0.15); color: var(--runway-amber); }
.pill.info { background: rgba(57,75,125,0.34); color: var(--indigo-200); }
.pill.neutral { background: rgba(255,255,255,0.06); color: var(--passport-blue-200); }
.pill .glyph { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* =============================================================
   CAPTURE  (grid of categories)
   ============================================================= */
.capture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-12); }
.cap-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--panel-charcoal);
  padding: var(--space-6);
  transition: border-color var(--dur-base) var(--ease-standard), background var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard);
}
.cap-card:hover { border-color: var(--hairline-strong); background: var(--surface-2); transform: translateY(-2px); }
.cap-card .ico {
  width: 38px; height: 38px; border-radius: var(--radius-md);
  display: grid; place-items: center; margin-bottom: var(--space-4);
  background: rgba(11,183,167,0.10); color: var(--teal-300);
  border: 1px solid rgba(11,183,167,0.18);
}
.cap-card .ico svg { width: 19px; height: 19px; }
.cap-card.optional .ico { background: rgba(245,166,35,0.10); color: var(--runway-amber); border-color: rgba(245,166,35,0.20); }
.cap-card h4 { font-size: var(--fs-18); margin: 0 0 var(--space-2) 0; }
.cap-card p { font-size: var(--fs-14); color: var(--fg-dim); line-height: var(--lh-normal); margin: 0; }
.cap-card .opt-tag { display: inline-block; margin-bottom: var(--space-3); }
.capture-foot {
  margin-top: var(--space-8);
  padding: var(--space-5) var(--space-6);
  border-left: 2px solid var(--teal-400);
  background: rgba(11,183,167,0.05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--fs-15); color: var(--fg-muted); line-height: var(--lh-relaxed);
}

/* =============================================================
   DEMAND-SIDE  (band)
   ============================================================= */
.band { background: rgba(10,14,28,0.55); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.demand-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-top: var(--space-12); }
.demand-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--panel-charcoal);
  padding: var(--space-6) var(--space-6) var(--space-6) var(--space-6);
  display: flex; gap: var(--space-5); align-items: flex-start;
}
.demand-card .num {
  font-family: var(--font-mono); font-size: var(--fs-13); color: var(--indigo-200);
  border: 1px solid var(--hairline-strong); border-radius: var(--radius-sm);
  padding: 2px 7px; flex: none; margin-top: 2px;
}
.demand-card h4 { font-size: var(--fs-18); margin: 0 0 var(--space-2) 0; }
.demand-card p { font-size: var(--fs-14); color: var(--fg-dim); margin: 0; line-height: var(--lh-normal); }

/* =============================================================
   HOW IT WORKS  (numbered steps)
   ============================================================= */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-top: var(--space-12); counter-reset: step; }
.step {
  position: relative;
  border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  background: var(--panel-charcoal); padding: var(--space-6);
}
.step .n {
  font-family: var(--font-mono); font-size: var(--fs-12); font-weight: 600;
  color: var(--night-slate); background: var(--teal-300);
  width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; margin-bottom: var(--space-4);
  letter-spacing: 0;
}
.step h4 { font-size: var(--fs-16); margin: 0 0 var(--space-2) 0; }
.step p { font-size: var(--fs-13); color: var(--fg-dim); margin: 0; line-height: var(--lh-normal); }

/* =============================================================
   SCENARIOS  (cards)
   ============================================================= */
.scn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-12); }
.scn-card {
  position: relative; overflow: hidden;
  border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  background: var(--panel-charcoal); padding: var(--space-6);
  min-height: 200px; display: flex; flex-direction: column;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.scn-card:hover { border-color: var(--hairline-strong); }
.scn-card .code { font-family: var(--font-mono); font-size: var(--fs-12); color: var(--teal-300); margin-bottom: var(--space-3); letter-spacing: 0.04em; }
.scn-card h4 { font-size: var(--fs-20); margin: 0 0 var(--space-3) 0; }
.scn-card p { font-size: var(--fs-14); color: var(--fg-dim); margin: 0; line-height: var(--lh-normal); }
.scn-card .scn-meta { margin-top: auto; padding-top: var(--space-5); display: flex; gap: var(--space-2); flex-wrap: wrap; }
.scn-tag { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--fg-dim); border: 1px solid var(--hairline); border-radius: var(--radius-xs); padding: 3px 7px; }

/* =============================================================
   WHY HUMAN-FLOWN  (contrast table)
   ============================================================= */
.contrast {
  margin-top: var(--space-12);
  border: 1px solid var(--hairline); border-radius: var(--radius-lg); overflow: hidden;
}
.contrast-head, .contrast-row { display: grid; grid-template-columns: 1fr 1fr; }
.contrast-head > div {
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-body); font-size: var(--fs-13); font-weight: 600;
  text-transform: uppercase; letter-spacing: var(--tracking-wide);
}
.contrast-head .sc { color: var(--fg-dim); background: rgba(255,255,255,0.02); border-right: 1px solid var(--hairline); }
.contrast-head .hu { color: var(--teal-300); background: rgba(11,183,167,0.06); }
.contrast-row > div { padding: var(--space-4) var(--space-6); font-size: var(--fs-15); border-top: 1px solid var(--hairline); }
.contrast-row .sc { color: var(--fg-dim); border-right: 1px solid var(--hairline); background: rgba(255,255,255,0.01); }
.contrast-row .hu { color: var(--fg); background: rgba(11,183,167,0.04); display: flex; align-items: center; gap: var(--space-3); }
.contrast-row .hu svg { width: 15px; height: 15px; color: var(--teal-400); flex: none; }
.closing-line {
  margin-top: var(--space-10); font-family: var(--font-display); font-weight: 500;
  font-size: var(--fs-24); line-height: var(--lh-snug); color: var(--fg);
  max-width: 820px; letter-spacing: -0.01em;
}
.closing-line .em { color: var(--teal-300); }

/* =============================================================
   TRUST
   ============================================================= */
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3) var(--space-10); margin-top: var(--space-10); }
.trust-item { display: flex; gap: var(--space-3); align-items: flex-start; padding: var(--space-3) 0; font-size: var(--fs-15); color: var(--fg-muted); }
.trust-item svg { width: 18px; height: 18px; color: var(--teal-300); flex: none; margin-top: 1px; }
.trust-foot { margin-top: var(--space-10); font-size: var(--fs-16); color: var(--fg-dim); font-style: italic; max-width: 720px; }

/* =============================================================
   FINAL CTA + FORM
   ============================================================= */
.final { padding: var(--space-24) 0; }
.final-card {
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(21,25,35,0.92) 0%, rgba(13,18,30,0.92) 100%);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.final-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; }
.final-intro {
  padding: var(--space-12);
  border-right: 1px solid var(--hairline);
  display: flex; flex-direction: column;
}
.final-intro h2 { font-size: var(--fs-32); margin: 0 0 var(--space-4) 0; }
.final-intro p { font-size: var(--fs-15); color: var(--fg-muted); line-height: var(--lh-relaxed); margin: 0 0 var(--space-8) 0; }
.final-intro .why { margin-top: auto; }
.final-intro .why .row { display: flex; gap: var(--space-3); align-items: center; padding: var(--space-2) 0; font-size: var(--fs-13); color: var(--fg-dim); }
.final-intro .why .row svg { width: 14px; height: 14px; color: var(--teal-400); flex: none; }

.final-form { padding: var(--space-10) var(--space-12); }

/* segmented toggle */
.seg {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  background: var(--surface-0); border: 1px solid var(--hairline);
  border-radius: var(--radius-pill); padding: 4px; margin-bottom: var(--space-8);
}
.seg button {
  font-family: var(--font-body); font-size: var(--fs-14); font-weight: 600;
  padding: 10px 14px; border-radius: var(--radius-pill);
  border: none; background: transparent; color: var(--fg-dim); cursor: pointer;
  transition: color var(--dur-base) var(--ease-standard), background var(--dur-base) var(--ease-standard);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.seg button svg { width: 16px; height: 16px; }
.seg button.active { color: var(--night-slate); }
.seg button.active.pilot { background: var(--signal-teal); }
.seg button.active.data { background: var(--indigo-200); }

.form-head { margin-bottom: var(--space-6); }
.form-head h3 { font-size: var(--fs-20); margin: 0 0 6px 0; }
.form-head p { font-size: var(--fs-13); color: var(--fg-dim); margin: 0; }

.fgrid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: var(--fs-12); font-weight: 600; color: var(--cloud-light); }
.field label .req { color: var(--teal-300); }
.inp, .sel, .ta {
  font-family: var(--font-body); font-size: var(--fs-14);
  padding: 10px 12px; background: var(--surface-0);
  border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  color: var(--paper-white); width: 100%;
  transition: border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);
}
.inp::placeholder, .ta::placeholder { color: var(--fg-faint); }
.inp:focus, .sel:focus, .ta:focus { outline: none; border-color: var(--signal-teal); box-shadow: 0 0 0 2px rgba(11,183,167,0.22); }
.inp.err { border-color: var(--beacon-red); box-shadow: 0 0 0 2px rgba(225,61,74,0.18); }
.ta { resize: vertical; min-height: 76px; line-height: var(--lh-normal); }
.sel { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238A92A3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; padding-right: 34px; }
.field .err-msg { font-size: 11px; color: var(--red-200); display: none; }
.field.has-err .err-msg { display: block; }

/* chip multiselect */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--font-body); font-size: var(--fs-13); font-weight: 500;
  padding: 7px 13px; border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong); background: var(--surface-0);
  color: var(--fg-muted); cursor: pointer; user-select: none;
  transition: all var(--dur-fast) var(--ease-standard);
  display: inline-flex; align-items: center; gap: 6px;
}
.chip:hover { border-color: var(--skyline-indigo); color: var(--paper-white); }
.chip.on { background: rgba(11,183,167,0.14); border-color: var(--teal-400); color: var(--teal-300); }
.chip.on .chk { opacity: 1; }
.chip .chk { width: 13px; height: 13px; opacity: 0; transition: opacity var(--dur-fast); }

/* radio segmented (sim choice / yes-no) */
.radio-row { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-pill {
  font-family: var(--font-body); font-size: var(--fs-13); font-weight: 500;
  padding: 8px 14px; border-radius: var(--radius-md);
  border: 1px solid var(--border-strong); background: var(--surface-0);
  color: var(--fg-muted); cursor: pointer; transition: all var(--dur-fast) var(--ease-standard);
}
.radio-pill:hover { border-color: var(--skyline-indigo); color: var(--paper-white); }
.radio-pill.on { background: rgba(11,183,167,0.14); border-color: var(--teal-400); color: var(--teal-300); }

.form-actions { margin-top: var(--space-8); display: flex; flex-direction: column; gap: var(--space-3); }
.form-note { font-size: var(--fs-12); color: var(--fg-dim); display: flex; align-items: center; gap: 8px; }
.form-note svg { width: 13px; height: 13px; color: var(--teal-400); flex: none; }
.form-error {
  font-size: var(--fs-13); color: var(--red-200);
  background: rgba(225,61,74,0.10); border: 1px solid rgba(225,61,74,0.30);
  border-radius: var(--radius-md); padding: 10px 12px;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* success state */
.form-success { text-align: center; padding: var(--space-10) var(--space-4); }
.form-success .seal {
  width: 76px; height: 76px; margin: 0 auto var(--space-6);
  border-radius: 50%; display: grid; place-items: center;
  background: rgba(11,183,167,0.12); border: 1px solid rgba(11,183,167,0.4);
  color: var(--teal-300); animation: stampIn 480ms var(--ease-emphasized);
}
.form-success .seal svg { width: 34px; height: 34px; }
@keyframes stampIn { 0% { transform: scale(0.6) rotate(-12deg); opacity: 0; } 100% { transform: scale(1) rotate(0); opacity: 1; } }
.form-success h3 { font-size: var(--fs-24); margin: 0 0 var(--space-3) 0; }
.form-success p { font-size: var(--fs-15); color: var(--fg-muted); max-width: 380px; margin: 0 auto var(--space-3); line-height: var(--lh-relaxed); }
.form-success .ref { font-family: var(--font-mono); font-size: var(--fs-12); color: var(--fg-dim); }

/* =============================================================
   FOOTER
   ============================================================= */
.footer { border-top: 1px solid var(--hairline); padding: var(--space-12) 0 var(--space-16); }
.footer .wrap { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-8); flex-wrap: wrap; }
.footer .brand .word { font-size: var(--fs-16); }
.footer .tag { font-size: var(--fs-13); color: var(--fg-dim); margin-top: var(--space-3); max-width: 320px; line-height: var(--lh-normal); }
.footer-cols { display: flex; gap: var(--space-16); flex-wrap: wrap; }
.footer-col h5 { font-size: 10px; text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--fg-dim); margin: 0 0 var(--space-4) 0; font-family: var(--font-body); font-weight: 600; }
.footer-col a { display: block; font-size: var(--fs-14); color: var(--fg-muted); padding: 5px 0; cursor: pointer; }
.footer-col a:hover { color: var(--paper-white); }
.footer-legal { margin-top: var(--space-12); padding-top: var(--space-6); border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; font-size: var(--fs-12); color: var(--fg-faint); }
.footer-legal .mono { color: var(--fg-dim); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 700ms var(--ease-emphasized), transform 700ms var(--ease-emphasized); }
.reveal.in { opacity: 1; transform: none; }

/* =============================================================
   RESPONSIVE
   ============================================================= */
@media (max-width: 900px) {
  .split, .final-grid { grid-template-columns: 1fr; }
  .final-intro { border-right: none; border-bottom: 1px solid var(--hairline); }
  .capture-grid, .steps, .scn-grid { grid-template-columns: 1fr 1fr; }
  .demand-grid, .trust-grid { grid-template-columns: 1fr; }
  .telem-strip { grid-template-columns: 1fr 1fr; }
  .telem-cell:nth-child(2) { border-right: none; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .capture-grid, .steps, .scn-grid, .fgrid { grid-template-columns: 1fr; }
  .section { padding: var(--space-16) 0; }
  .final-intro, .final-form { padding: var(--space-8) var(--space-6); }
  .contrast-head > div, .contrast-row > div { padding: var(--space-3) var(--space-4); font-size: var(--fs-13); }
  .closing-line { font-size: var(--fs-20); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .tagline-lockup .dot { animation: none; }
}