/* ============================================================
   latchpay — settlement & payouts rail
   Visual direction: Apollo GraphQL ("deep-space operations
   center"). Near-black navy canvas, off-white text, a single
   Fusion Orange accent used ONLY for primary actions/active.
   Borrows: Doppler frosted dark surfaces; Lithic dark->light
   section discipline. Inter for text, Fira Code for code/data.
   ============================================================ */

/* ---- Tokens ------------------------------------------------ */
:root {
  /* Color — Apollo palette */
  --ink:        #15252d; /* primary dark canvas / text on light */
  --ink-2:      #1b2f3a; /* layered dark surface (depth, no shadow) */
  --ink-3:      #102029; /* deepest panel / footer */
  --cloud:      #f8f8f8; /* text on dark / light section bg */
  --nebula:     #e2e8f0; /* borders + light section bg */
  --offwhite:   #efefef; /* secondary light bg */
  --crater:     #9fb2bc; /* muted/secondary text + dividers */
  --crater-dim: #6f8794; /* fainter muted on dark */
  --subtle:     #254250; /* secondary button bg on dark */
  --orange:     #e75e15; /* Fusion Orange — CTA / active ONLY */
  --orange-ink: #f97a35; /* orange tint for links on dark (not a fill) */

  /* Frosted surfaces (Doppler borrow) */
  --glass:      rgba(255,255,255,.04);
  --glass-2:    rgba(255,255,255,.06);
  --hairline:   rgba(255,255,255,.10);
  --hairline-2: rgba(255,255,255,.16);

  /* Status (data display only — kept muted, not brand accent) */
  --ok:    #3fb98a;
  --flight:#d9a23a;

  /* Type */
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Fira Code", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Radius — Apollo signatures */
  --r-card: 24px;
  --r-input: 8px;
  --r-pill: 999px;

  /* Layout */
  --maxw: 1120px;
  --gutter: 24px;
  --section: 96px;
}

/* ---- Reset ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--cloud);
  background: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
h1, h2, h3, p { margin: 0; }
::selection { background: var(--orange); color: var(--cloud); }

/* ---- Layout primitives ------------------------------------ */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section) 0; }
.section--tight { padding: 48px 0; }
.eyebrow {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--crater); font-weight: 600; margin: 0 0 14px;
}
.display {
  font-size: clamp(2.4rem, 5.4vw, 3.125rem); /* up to 50px */
  line-height: 1.08; font-weight: 700; letter-spacing: -.02em;
  text-wrap: balance;
}
h2 {
  font-size: clamp(1.7rem, 3.4vw, 1.875rem); /* up to 30px */
  line-height: 1.2; font-weight: 700; letter-spacing: -.015em;
  text-wrap: balance;
}
h3 { font-size: 20px; line-height: 1.3; font-weight: 600; letter-spacing: -.01em; }
.lead { font-size: clamp(1rem, 1.4vw, 1.125rem); line-height: 1.6; color: var(--crater); text-wrap: pretty; }
.muted { color: var(--crater); }

/* ---- Buttons (Apollo: pill, orange = primary only) -------- */
.btn {
  --bg: transparent; --fg: var(--cloud); --bd: transparent;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--r-pill);
  font-size: 15px; font-weight: 600; line-height: 1;
  background: var(--bg); color: var(--fg);
  border: 1px solid var(--bd); cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { --bg: var(--orange); --fg: #fff; --bd: var(--orange); }
.btn--primary:hover { --bg: #f26a20; --bd: #f26a20; }
.btn--outline { --bd: var(--orange); --fg: var(--cloud); }
.btn--outline:hover { background: rgba(231,94,21,.10); }
.btn--ghost { --fg: var(--cloud); }
.btn--ghost:hover { background: var(--glass-2); }
.btn--soft { --bg: var(--subtle); --fg: var(--cloud); --bd: var(--hairline); border-radius: var(--r-input); padding: 8px 14px; font-size: 14px; }
.btn--soft:hover { background: #2c4c5c; }
.btn--block { width: 100%; }
.btn--lg { padding: 14px 26px; font-size: 16px; }

.link { color: var(--cloud); font-weight: 500; }
.link:hover { color: #fff; }
.link--accent { color: var(--orange-ink); font-weight: 600; }
.link--accent:hover { color: var(--orange); }
.arrow::after { content: " \2192"; }

/* ---- Header / nav ----------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(21,37,45,.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.nav { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { font-weight: 700; font-size: 19px; letter-spacing: -.02em; color: #fff; }
.brand .dot { color: var(--orange); }
.nav__links { display: flex; gap: 22px; margin-left: 18px; }
.nav__links a { font-size: 14.5px; color: var(--crater); font-weight: 500; }
.nav__links a:hover { color: var(--cloud); }
.nav__spacer { flex: 1; }
.nav__actions { display: flex; align-items: center; gap: 14px; }
.nav__toggle {
  display: none; flex-direction: column; gap: 4px; width: 40px; height: 40px;
  align-items: center; justify-content: center; background: var(--glass);
  border: 1px solid var(--hairline); border-radius: var(--r-input); cursor: pointer;
}
.nav__toggle span { width: 16px; height: 1.5px; background: var(--cloud); }

/* ---- Hero -------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding: clamp(56px, 8vw, 104px) 0 var(--section); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
/* atmospheric orbital lines + faint specks, Apollo mission-control mood */
.hero-bg::before {
  content: ""; position: absolute; left: 50%; top: -42%;
  width: 1100px; height: 1100px; transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(231,94,21,.10), transparent 70%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.18), transparent),
    radial-gradient(1px 1px at 70% 20%, rgba(255,255,255,.14), transparent),
    radial-gradient(1px 1px at 85% 60%, rgba(255,255,255,.10), transparent),
    radial-gradient(1px 1px at 35% 75%, rgba(255,255,255,.12), transparent),
    radial-gradient(1px 1px at 55% 45%, rgba(255,255,255,.08), transparent);
}
.hero .container { position: relative; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero__eyebrow { color: var(--crater); }
.hero p.lead { margin-top: 18px; max-width: 36ch; }
.signup { display: flex; gap: 10px; margin: 28px 0 14px; max-width: 460px; }
.signup input {
  flex: 1; min-width: 0; padding: 12px 16px; font-size: 15px;
  background: var(--glass); color: var(--cloud);
  border: 1px solid var(--hairline-2); border-radius: var(--r-pill);
  outline: none;
}
.signup input::placeholder { color: var(--crater-dim); }
.signup input:focus { border-color: var(--orange); }
.hero__sub { font-size: 13.5px; color: var(--crater); }
.hero__sub b { color: var(--cloud); font-weight: 600; }

/* ---- Code window (Fira Code — code role only) ------------- */
.codewin {
  background: var(--ink-3); border: 1px solid var(--hairline);
  border-radius: 14px; overflow: hidden; margin-bottom: 16px;
}
.codewin__bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 14px;
  border-bottom: 1px solid var(--hairline); background: var(--glass);
}
.codewin__bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--crater-dim); display: block; }
.codewin__bar small { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--crater); }
.codewin pre {
  margin: 0; padding: 16px 18px; overflow-x: auto;
  font-family: var(--mono); font-size: 13px; line-height: 1.7; color: #cfe0e8;
}
.codewin .k { color: var(--orange-ink); }   /* method/keyword */
.codewin .s { color: #9fd2b0; }              /* string */
.codewin .p { color: var(--crater); }        /* punctuation/comment */
.codewin .n { color: #e7b78a; }              /* number */

/* ---- Settlement frame (code-native product primitive) ----- */
.frame {
  background: var(--glass); border: 1px solid var(--hairline);
  border-radius: var(--r-card); overflow: hidden;
  backdrop-filter: blur(2px);
}
.frame__bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 18px;
  border-bottom: 1px solid var(--hairline); background: var(--glass-2);
}
.frame__bar .label { font-size: 13px; font-weight: 600; color: var(--cloud); }
.frame__bar .meta { margin-left: auto; font-family: var(--mono); font-size: 11.5px; color: var(--crater); }
.frame__body { padding: 8px 0; }
.runrow {
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 14px;
  padding: 13px 18px; border-bottom: 1px solid rgba(255,255,255,.06);
}
.runrow:last-child { border-bottom: 0; }
.runrow .who { display: flex; align-items: center; gap: 11px; min-width: 0; }
.runrow .ava {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  display: grid; place-items: center; font-size: 12px; font-weight: 700; color: var(--ink);
  background: var(--crater);
}
.runrow .name { font-size: 14px; font-weight: 600; color: var(--cloud); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.runrow .rail { font-family: var(--mono); font-size: 11px; color: var(--crater); letter-spacing: .03em; }
.runrow .amt { font-family: var(--mono); font-size: 13.5px; color: var(--cloud); text-align: right; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-weight: 600; padding: 4px 10px; border-radius: var(--r-pill);
  border: 1px solid var(--hairline-2); color: var(--crater); white-space: nowrap;
}
.chip i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.chip--ok { color: var(--ok); border-color: rgba(63,185,138,.35); }
.chip--flight { color: var(--flight); border-color: rgba(217,162,58,.35); }
.frame__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-top: 1px solid var(--hairline); background: var(--glass-2);
}
.frame__foot .total { font-family: var(--mono); font-size: 13px; color: var(--cloud); }
.frame__foot .note { font-size: 12px; color: var(--crater); }

/* ---- Trust wall ------------------------------------------- */
.trust__label { text-align: center; font-size: 12.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--crater-dim); }
.logos {
  display: flex; flex-wrap: wrap; gap: 14px 44px; justify-content: center; align-items: center;
  margin-top: 22px;
}
.logos span { font-size: 16px; font-weight: 700; letter-spacing: -.01em; color: var(--crater); opacity: .85; }

/* ---- Feature rows ----------------------------------------- */
.feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  padding: 40px 0;
}
.feature + .feature { border-top: 1px solid var(--hairline); }
.feature--flip .feature__media { order: -1; }
.feature__list { list-style: none; margin: 22px 0 24px; padding: 0; display: grid; gap: 12px; }
.feature__list li { display: flex; gap: 11px; align-items: flex-start; font-size: 15px; color: var(--cloud); }
.tick {
  flex: none; width: 20px; height: 20px; border-radius: 50%; margin-top: 1px;
  display: grid; place-items: center; font-size: 11px; color: var(--orange);
  background: rgba(231,94,21,.12); border: 1px solid rgba(231,94,21,.3);
}

/* small schematic cards used inside feature media */
.mini {
  background: var(--glass); border: 1px solid var(--hairline); border-radius: 18px; padding: 22px;
  display: grid; gap: 14px;
}
.mini .barrow { display: grid; grid-template-columns: 84px 1fr; gap: 12px; align-items: center; }
.mini .barrow span:first-child { font-family: var(--mono); font-size: 12px; color: var(--crater); }
.mini .track { height: 8px; border-radius: var(--r-pill); background: rgba(255,255,255,.07); overflow: hidden; }
.mini .track i { display: block; height: 100%; border-radius: var(--r-pill); background: linear-gradient(90deg, var(--orange), #f59054); }

/* ---- Light band (Lithic dark->light discipline) ----------- */
.band-light { background: var(--nebula); color: var(--ink); }
.band-light .eyebrow { color: #5a6b75; }
.band-light .lead { color: #44545d; }
.band-light h2, .band-light h3 { color: var(--ink); }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 12px; }
.stat {
  background: #fff; border: 1px solid #d6dee6; border-radius: var(--r-card); padding: 28px;
}
.stat .num { font-size: 34px; font-weight: 700; letter-spacing: -.02em; color: var(--ink); }
.stat .lbl { font-size: 14px; color: #54636c; margin-top: 6px; }

/* ---- How it works (steps) --------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 36px; }
.step {
  background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--r-card); padding: 28px;
}
.step__no {
  font-family: var(--mono); font-size: 13px; color: var(--orange-ink);
  border: 1px solid var(--hairline-2); border-radius: var(--r-pill);
  width: 34px; height: 34px; display: grid; place-items: center; margin-bottom: 18px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 14.5px; color: var(--crater); }

/* ---- CTA band --------------------------------------------- */
.cta {
  text-align: center; border: 1px solid var(--hairline); border-radius: var(--r-card);
  background:
    radial-gradient(closest-side at 50% 0%, rgba(231,94,21,.16), transparent 70%),
    var(--ink-2);
  padding: 64px 24px;
}
.cta h2 { margin-bottom: 14px; }
.cta .lead { margin: 0 auto 28px; max-width: 52ch; }
.cta__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Footer ----------------------------------------------- */
.site-footer { background: var(--ink-3); border-top: 1px solid var(--hairline); padding: 64px 0 40px; }
.footer__grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer__brand .brand { font-size: 20px; }
.footer__brand p { margin-top: 14px; font-size: 14px; color: var(--crater); max-width: 30ch; }
.fcol h4 { margin: 0 0 14px; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--crater-dim); font-weight: 700; }
.fcol a { display: block; font-size: 14.5px; color: var(--crater); padding: 5px 0; }
.fcol a:hover { color: var(--cloud); }
.footer__base {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--hairline);
  font-size: 13px; color: var(--crater-dim);
}

/* ---- Page hero (inner pages) ------------------------------ */
.page-hero { padding: clamp(56px, 7vw, 88px) 0 56px; border-bottom: 1px solid var(--hairline); position: relative; overflow: hidden; }
.page-hero .container { position: relative; max-width: 760px; }
.page-hero .lead { margin-top: 16px; }

/* ---- Security page ---------------------------------------- */
.sec-block { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: start; }
.sec-block + .sec-block { margin-top: 64px; padding-top: 64px; border-top: 1px solid var(--hairline); }
.sec-block__head { position: sticky; top: 90px; }
.sec-icon {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(231,94,21,.12); border: 1px solid rgba(231,94,21,.3); color: var(--orange);
  margin-bottom: 16px; font-size: 18px;
}
.sec-block__head h2 { font-size: 24px; }
.sec-list { display: grid; gap: 18px; }
.sec-item {
  background: var(--glass); border: 1px solid var(--hairline); border-radius: 18px; padding: 22px 24px;
}
.sec-item h3 { font-size: 16px; margin-bottom: 7px; }
.sec-item p { font-size: 14.5px; color: var(--crater); }
.badges { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
  border: 1px solid var(--hairline-2); border-radius: var(--r-pill);
  font-size: 13px; font-weight: 600; color: var(--cloud);
}
.badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }

/* ---- Auth / login ----------------------------------------- */
.authwrap { min-height: calc(100vh - 64px); display: grid; place-items: center; padding: 56px 0; }
.auth { width: 100%; max-width: 420px; }
.auth__card { background: var(--glass); border: 1px solid var(--hairline); border-radius: var(--r-card); padding: 36px; }
.auth__card h1 { font-size: 26px; font-weight: 700; letter-spacing: -.02em; }
.auth__card .lead { margin: 8px 0 24px; font-size: 15px; }
.field { display: grid; gap: 7px; margin-bottom: 16px; }
.field label { font-size: 13px; font-weight: 600; color: var(--crater); }
.field input {
  padding: 12px 14px; font-size: 15px; background: var(--ink-3); color: var(--cloud);
  border: 1px solid var(--hairline-2); border-radius: var(--r-input); outline: none;
}
.field input:focus { border-color: var(--orange); }
.auth__divider { text-align: center; font-size: 12px; color: var(--crater-dim); margin: 18px 0; position: relative; }
.auth__divider::before, .auth__divider::after { content: ""; position: absolute; top: 50%; width: 40%; height: 1px; background: var(--hairline); }
.auth__divider::before { left: 0; } .auth__divider::after { right: 0; }
.btn--google { background: var(--glass-2); border: 1px solid var(--hairline-2); color: var(--cloud); border-radius: var(--r-input); }
.btn--google:hover { background: rgba(255,255,255,.10); }
.auth__foot { margin-top: 20px; font-size: 14px; color: var(--crater); text-align: center; }

/* ---- Responsive ------------------------------------------- */
@media (max-width: 900px) {
  :root { --section: 72px; }
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .feature, .feature--flip .feature__media { grid-template-columns: 1fr; }
  .feature__media { order: 0 !important; }
  .steps, .stat-grid { grid-template-columns: 1fr; }
  .sec-block { grid-template-columns: 1fr; gap: 24px; }
  .sec-block__head { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; }

  .nav__links, .nav__actions { display: none; }
  .nav__toggle { display: flex; }
  .nav[data-open="true"] { position: relative; }
  .nav[data-open="true"] .nav__links {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 56px; left: 0; right: 0; margin: 0;
    background: var(--ink-2); border: 1px solid var(--hairline); border-radius: 14px; padding: 8px;
  }
  .nav[data-open="true"] .nav__links a { padding: 12px 12px; }
  .nav[data-open="true"] .nav__actions {
    display: flex; flex-direction: column; align-items: stretch; gap: 10px;
    position: absolute; top: 184px; left: 0; right: 0;
    background: var(--ink-2); border: 1px solid var(--hairline); border-radius: 14px; padding: 12px;
  }
}
@media (max-width: 560px) {
  .signup { flex-direction: column; }
  .signup .btn { width: 100%; }
  .footer__grid { grid-template-columns: 1fr; }
  .runrow { grid-template-columns: 1fr auto; }
  .runrow .amt { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto; transition: none !important; } }