/* ============================================================
   Aire — brand system (DARK)
   Void Black #0A0A0A · Carbon #1C1C1C · Slate #4A4A4A
   Signal Orange #FF4500 (single accent) · Flag Yellow #FFC107 (operational only)
   Georgia headlines · Calibri body · sentence case · quiet luxury, dark register
   Desktop-primary, fully responsive to mobile.
   ============================================================ */

:root {
  --void: #0A0A0A;
  --carbon: #141414;
  --raised: #1C1C1C;
  --slate: #4A4A4A;
  --signal: #FF4500;
  --flag: #FFC107;

  /* dark-mode text + lines */
  --ink: #EDEDEA;        /* primary text (warm off-white, not pure) */
  --ink-soft: #A6A6A1;   /* secondary text */
  --ink-faint: #6E6E69;  /* captions, labels */
  --hairline: #2A2A28;   /* dividers on dark */
  --field-bg: #141414;
  --field-border: #333330;

  --radius: 2px;
  --max: 1100px;
  --font-display: Georgia, "Times New Roman", serif;
  --font-body: Calibri, "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--void);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- mark ---------- */
.mark { display: flex; align-items: center; gap: 10px; }
.mark svg { width: 26px; height: 26px; }
.mark .word {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--ink);
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,10,10,0.86);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: 14.5px; color: var(--ink-soft); letter-spacing: 0.2px; }
.nav a:hover { color: var(--ink); }
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.3px;
  padding: 11px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--void);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--field-border); }
.btn.ghost:hover { background: var(--raised); border-color: var(--ink); }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- hero ---------- */
.hero { padding: 120px 0 96px; }
.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2.2px;
  color: var(--ink-faint);
  margin-bottom: 26px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--ink);
  max-width: 15ch;
}
.hero .tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  color: var(--ink-soft);
  margin-top: 18px;
  letter-spacing: -0.2px;
}
.platform-rule {
  width: 72px; height: 3px;
  background: var(--signal);
  margin: 34px 0;
}
.hero .dek {
  font-size: 19px;
  color: var(--ink-soft);
  max-width: 52ch;
  margin-bottom: 40px;
}
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- principle strip ---------- */
.principle {
  background: var(--raised);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 76px 0;
}
.principle .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.principle h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  color: var(--ink);
}
.principle p { color: var(--ink-soft); font-size: 16.5px; }
.principle p + p { margin-top: 14px; }
.principle strong { color: var(--ink); font-weight: 700; }

/* ---------- sections ---------- */
.section { padding: 96px 0; }
.section.alt { background: var(--carbon); }
.section-head { margin-bottom: 52px; }
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.8px;
  color: var(--ink);
}
.section-head .platform-rule { margin: 22px 0 0; }

/* how it works */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
.step { background: var(--void); padding: 34px 28px 38px; }
.section.alt .step { background: var(--carbon); }
.step .k {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--signal);
  margin-bottom: 16px;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: -0.2px;
}
.step p { font-size: 15.5px; color: var(--ink-soft); }

/* product ladder */
.ladder { border-top: 1px solid var(--hairline); }
.ladder-row {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  padding: 26px 0;
  border-bottom: 1px solid var(--hairline);
}
.ladder-row h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.2px;
}
.ladder-row p { font-size: 15.5px; color: var(--ink-soft); max-width: 62ch; }

/* guarantee */
.guarantee { text-align: center; padding: 84px 0; }
.guarantee p {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  color: var(--ink);
  letter-spacing: -0.4px;
  max-width: 32ch;
  margin: 0 auto;
}
.guarantee .platform-rule { margin: 28px auto 0; }

/* cta band */
.cta-band { background: var(--carbon); padding: 88px 0; text-align: center; border-top: 1px solid var(--hairline); }
.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.6px;
  color: var(--ink);
  margin-bottom: 12px;
}
.cta-band p { color: var(--ink-soft); margin-bottom: 32px; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 44px 0 56px;
  background: var(--void);
}
.site-footer .wrap {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 24px; flex-wrap: wrap;
}
.site-footer .word { font-size: 18px; }
.foot-links { display: flex; gap: 24px; flex-wrap: wrap; }
.foot-links a { font-size: 13.5px; color: var(--ink-soft); }
.foot-links a:hover { color: var(--ink); }
.legal {
  width: 100%;
  margin-top: 28px;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.2px;
}

/* ============================================================
   Intake flow
   ============================================================ */

.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: var(--hairline); z-index: 60;
}
.progress .bar {
  height: 100%; width: 0%;
  background: var(--signal);
  transition: width 0.35s ease;
}

.intake-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 24px 0;
  max-width: 720px; margin: 0 auto;
}
.intake-header a.back { font-size: 13.5px; color: var(--ink-soft); }
.intake-header a.back:hover { color: var(--ink); }

.stage-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 120px;
}

.stage { display: none; }
.stage.active { display: block; animation: rise 0.35s ease; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.stage .eyebrow { margin-bottom: 14px; }
.stage h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.8px;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.15;
}
.stage .sub { color: var(--ink-soft); font-size: 16.5px; margin-bottom: 36px; max-width: 56ch; }

.field { margin-bottom: 22px; }
.field label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.4px;
  color: var(--ink-soft);
  margin-bottom: 7px;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 17px; /* >=16px prevents iOS zoom */
  color: var(--ink);
  padding: 13px 14px;
  min-height: 48px;
  border: 1px solid var(--field-border);
  border-radius: var(--radius);
  background: var(--field-bg);
  transition: border-color 0.15s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }
.field select { color: var(--ink); }
.field select option { color: #000; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--ink);
}
.field .err {
  display: none;
  font-size: 13px;
  color: var(--flag);
  background: rgba(255,193,7,0.08);
  border-left: 3px solid var(--flag);
  padding: 6px 10px;
  margin-top: 7px;
}
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid select { border-color: var(--flag); }

.notice {
  font-size: 14px;
  color: var(--flag);
  background: rgba(255,193,7,0.08);
  border: 1px solid rgba(255,193,7,0.4);
  border-left: 3px solid var(--flag);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 22px;
}

.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice {
  border: 1px solid var(--field-border);
  border-radius: var(--radius);
  padding: 13px 14px;
  min-height: 48px;
  font-size: 15.5px;
  color: var(--ink);
  background: var(--field-bg);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  transition: border-color 0.12s ease, background 0.12s ease, color 0.12s ease;
}
.choice[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--void);
}

.confirm-card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--raised);
  padding: 8px 22px;
  margin-bottom: 28px;
}
.confirm-card .row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--hairline);
}
.confirm-card .row:last-child { border-bottom: 0; }
.confirm-card .lbl { font-size: 13.5px; color: var(--ink-soft); letter-spacing: 0.3px; }
.confirm-card .val {
  font-size: 16px; color: var(--ink); font-weight: 700;
  text-align: right;
}
.confirm-card .val input {
  font-family: var(--font-body);
  font-size: 16px;
  text-align: right;
  color: var(--ink);
  background: var(--void);
  border: 1px solid var(--field-border);
  border-radius: var(--radius);
  padding: 6px 9px;
  width: 150px;
  max-width: 40vw;
}
.confirm-card .val .edited { color: var(--signal); font-weight: 700; }

.stage-actions {
  display: flex; gap: 12px; align-items: center;
  margin-top: 38px;
  flex-wrap: wrap;
}
.btn[disabled] { opacity: 0.4; cursor: default; }
.linklike {
  background: none; border: 0; cursor: pointer;
  font-family: var(--font-body);
  font-size: 14.5px; color: var(--ink-soft);
  text-decoration: underline; text-underline-offset: 3px;
}
.linklike:hover { color: var(--ink); }

/* review screen */
.review-block { border: 1px solid var(--hairline); border-radius: var(--radius); margin-bottom: 16px; }
.review-block .rb-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 18px;
  background: var(--raised);
  border-bottom: 1px solid var(--hairline);
}
.review-block .rb-head h3 {
  font-family: var(--font-display);
  font-size: 15px; color: var(--ink);
}
.review-block dl { padding: 12px 18px; }
.review-block .pair {
  display: flex; justify-content: space-between; gap: 18px;
  padding: 6px 0; font-size: 15px;
}
.review-block dt { color: var(--ink-soft); }
.review-block dd { color: var(--ink); text-align: right; }

/* confirmation */
.received { text-align: center; padding-top: 8vh; }
.received h1 { margin-bottom: 18px; }
.received p { color: var(--ink-soft); font-size: 17.5px; max-width: 44ch; margin: 0 auto; }
.received .platform-rule { margin: 34px auto 0; }

/* places dropdown (custom autocomplete) */
.places-box { position: relative; }
.places-list {
  position: absolute; left: 0; right: 0; top: calc(100% + 4px);
  background: var(--raised);
  border: 1px solid var(--field-border);
  border-radius: var(--radius);
  box-shadow: 0 12px 30px rgba(0,0,0,0.5);
  z-index: 40;
  max-height: 280px;
  overflow-y: auto;
}
.places-list button {
  display: block; width: 100%; text-align: left;
  font-family: var(--font-body); font-size: 15.5px;
  color: var(--ink);
  padding: 12px 14px;
  background: none; border: 0; border-bottom: 1px solid var(--hairline);
  cursor: pointer;
}
.places-list button:hover, .places-list button:focus { background: var(--void); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .principle .wrap { grid-template-columns: 1fr; gap: 24px; }
  .steps { grid-template-columns: 1fr; }
  .ladder-row { grid-template-columns: 1fr; gap: 6px; padding: 22px 0; }
  .hero { padding: 80px 0 68px; }
  .section { padding: 64px 0; }
  .nav { gap: 16px; }
  .nav a.navlink { display: none; }
  .choice-grid { grid-template-columns: 1fr; }
  .site-footer .wrap { flex-direction: column; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .hero { padding: 64px 0 56px; }
  .hero .dek { font-size: 17px; }
  .btn { display: block; width: 100%; text-align: center; }
  .hero .actions { width: 100%; }
  .nav .btn { display: inline-block; width: auto; padding: 9px 18px; }
  .stage-wrap { padding: 52px 18px 100px; }
  .stage-actions .btn { width: 100%; }
}