/* ProtoHQ marketing site — static, no build step.
   Matches the ProtoHQ app's FLAT MINIMAL theme: separation by tone,
   not lines — no borders or shadows on cards/controls (shadow only on
   true overlays). Green accent, soft-rect controls, Space Grotesk
   display + Inter body.
   Tokens mirror geolife-frontend/src/app/tokens.css (light theme). */

:root {
  /* Surfaces — tone ladder (canvas sits below white so borderless
     white cards read as cards) */
  --bg: #f2f3f6;
  --bg-elev: #eceef2;
  --surface: #ffffff;
  --surface-2: #f4f5f7;
  --surface-3: #e8eaef;

  /* Ink */
  --ink: #1a1d24;
  --ink-2: #545b66;
  --ink-3: #878d98;
  --ink-4: #b4b9c1;

  /* Lines */
  --line: rgba(17, 24, 39, 0.09);
  --line-2: rgba(17, 24, 39, 0.13);

  /* Accent — THE brand color. Change this ONE hex and every accent
     tint and hover below re-derives via color-mix. Keep in sync with
     --accent in geolife-frontend/src/app/tokens.css. */
  --accent: #059669;
  --accent-2: color-mix(in srgb, var(--accent) 86%, black);
  --accent-ink: var(--accent-2);
  --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
  --accent-line: color-mix(in srgb, var(--accent) 30%, transparent);

  /* Semantic */
  --ok: #1f9d5f;
  --warn: #bb8104;

  /* Radius */
  --radius-sm: 8px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* Elevation — overlays only; cards are flat (tone separation) */
  --shadow-overlay: 0 4px 12px rgba(16, 24, 40, 0.10), 0 12px 32px rgba(16, 24, 40, 0.12);

  --maxw: 1080px;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
::selection { background: var(--accent-soft); color: var(--ink); }

/* ── nav ─────────────────────────────────────────────────────────────── */
header.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(242, 243, 246, 0.85);
  backdrop-filter: saturate(1.6) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.02em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.logo { width: 27px; height: 27px; border-radius: 8px; display: inline-block; flex: none; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a.nl { color: var(--ink-2); font-size: 14.5px; font-weight: 500; }
.nav-links a.nl:hover { color: var(--ink); text-decoration: none; }
@media (max-width: 640px) { .nav-links a.nl { display: none; } }

/* ── buttons — flat soft-rect (r10), tone-separated, no shadows ──────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 600; font-size: 14.5px;
  padding: 10px 18px; border-radius: var(--radius);
  border: none; cursor: pointer;
  transition: transform .05s ease, background .16s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost { background: var(--bg-elev); color: var(--ink); }
.btn-ghost:hover { background: var(--surface-3); }
.btn-lg { padding: 13px 24px; font-size: 15.5px; border-radius: 12px; }

/* ── hero ────────────────────────────────────────────────────────────── */
.hero { padding: 88px 0 44px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600;
  letter-spacing: 0; color: var(--accent-ink); background: var(--accent-soft);
  padding: 5px 13px; border-radius: var(--radius-pill);
  margin-bottom: 22px;
}
.hero h1 {
  font-family: var(--font-display); font-size: clamp(34px, 5.4vw, 56px); line-height: 1.04;
  letter-spacing: -0.03em; font-weight: 700; margin: 0 0 20px; max-width: 16ch; text-wrap: balance;
}
.hero .sub { font-size: clamp(17px, 2.2vw, 20px); color: var(--ink-2); max-width: 60ch; margin: 0 0 30px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* product visual: a "message -> task" flow (mirrors the app's chat/cards) */
.showcase { margin-top: 58px; border-radius: var(--radius-xl); background: var(--surface); padding: 22px; }
.flow { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: center; }
@media (max-width: 720px) { .flow { grid-template-columns: 1fr; } .flow .arrow { transform: rotate(90deg); justify-self: center; } }
.panel { background: var(--bg-elev); border-radius: var(--radius-lg); padding: 16px; }
.panel .plabel { font-family: var(--font-display); font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.bubble { background: var(--surface); border-radius: 12px 12px 12px 4px; padding: 10px 13px; font-size: 14px; color: var(--ink); margin-bottom: 8px; max-width: 92%; }
.bubble .who { font-size: 11.5px; color: var(--ink-3); margin-bottom: 3px; }
.task-card { border-left: 3px solid var(--accent); border-radius: 8px; padding: 11px 13px; margin-bottom: 9px; background: var(--surface); }
.task-card .tt { font-weight: 600; font-size: 14px; }
.task-card .tm { font-size: 12.5px; color: var(--ink-2); margin-top: 3px; }
.pill { display: inline-block; font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: var(--radius-pill); background: var(--accent-soft); color: var(--accent-ink); margin-top: 7px; }
.arrow { color: var(--accent); font-size: 26px; font-weight: 700; }

/* ── sections ────────────────────────────────────────────────────────── */
section { padding: 66px 0; }
.section-head { max-width: 62ch; margin-bottom: 40px; }
.kicker { font-family: var(--font-display); font-size: 12.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent-ink); margin: 0 0 10px; }
h2 { font-family: var(--font-display); font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -0.025em; font-weight: 700; margin: 0 0 12px; text-wrap: balance; }
.section-head p { color: var(--ink-2); font-size: 17px; margin: 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--surface); border-radius: var(--radius-lg); padding: 22px; transition: transform .16s ease; }
.card:hover { transform: translateY(-2px); }
.card .ico { width: 40px; height: 40px; border-radius: 11px; background: var(--accent-soft); color: var(--accent-ink); display: grid; place-items: center; font-size: 19px; margin-bottom: 14px; }
.card h3 { font-family: var(--font-display); font-size: 17px; margin: 0 0 7px; letter-spacing: -0.015em; font-weight: 600; }
.card p { color: var(--ink-2); font-size: 14.5px; margin: 0; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .steps { grid-template-columns: 1fr; } }
.step .num { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--accent-ink); }
.step h3 { font-family: var(--font-display); font-size: 16px; margin: 8px 0 6px; font-weight: 600; letter-spacing: -0.01em; }
.step p { color: var(--ink-2); font-size: 14px; margin: 0; }

/* integrations */
.integrations { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.int-row { display: flex; flex-wrap: wrap; gap: 12px; }
.int { display: inline-flex; align-items: center; gap: 10px; background: var(--bg-elev); border-radius: var(--radius-pill); padding: 9px 16px; font-weight: 600; font-size: 14px; }
.int .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); }

/* ── request access ──────────────────────────────────────────────────── */
.request { background: var(--surface); border-top: 1px solid var(--line); }
.req-card {
  display: grid; grid-template-columns: 1.05fr 1fr; align-items: stretch;
  border-radius: var(--radius-xl);
  overflow: hidden; background: var(--surface);
}
@media (max-width: 820px) { .req-card { grid-template-columns: 1fr; } }

/* left — branded value panel */
.req-aside {
  position: relative; isolation: isolate;
  display: flex; flex-direction: column; justify-content: space-between; gap: 34px;
  padding: 44px 40px;
  background: linear-gradient(158deg, color-mix(in srgb, var(--accent) 82%, white) 0%, var(--accent) 52%, color-mix(in srgb, var(--accent) 78%, black) 100%);
  color: #fff; overflow: hidden;
}
/* soft glow + subtle grid texture, purely decorative */
.req-aside::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 80% at 100% 0%, rgba(255,255,255,.22), transparent 60%),
    radial-gradient(90% 70% at 0% 100%, rgba(0,0,0,.16), transparent 55%);
}
.req-aside::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 70%);
          mask-image: radial-gradient(100% 100% at 100% 0%, #000, transparent 70%);
}
.kicker-on-accent { color: rgba(255,255,255,.82); margin: 0 0 12px; }
.req-aside h2 { color: #fff; margin: 0 0 12px; }
.req-lead { color: rgba(255,255,255,.9); font-size: 16px; margin: 0; max-width: 34ch; }

.req-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.req-steps li { display: flex; align-items: flex-start; gap: 13px; }
.rs-num {
  flex: none; width: 26px; height: 26px; border-radius: var(--radius-pill);
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700;
  font-size: 13px; color: #fff; background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.32); box-shadow: inset 0 1px 0 rgba(255,255,255,.25);
}
.rs-body { display: flex; flex-direction: column; gap: 1px; }
.rs-body strong { font-weight: 600; font-size: 14.5px; letter-spacing: -0.01em; }
.rs-body span { color: rgba(255,255,255,.74); font-size: 13.5px; line-height: 1.45; }

.req-trust { display: flex; flex-direction: column; gap: 8px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.18); }
.rt { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: rgba(255,255,255,.92); }
.rt svg { flex: none; opacity: .9; }
.rt-alt { font-size: 13px; color: rgba(255,255,255,.72); }
.rt-alt a { color: #fff; font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.rt-alt a:hover { text-decoration: none; }

/* right — form */
.req-form { display: flex; flex-direction: column; gap: 15px; padding: 44px 40px; background: var(--surface); }
@media (max-width: 820px) { .req-aside, .req-form { padding: 30px 26px; } }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 480px) { .field-row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.field label .req { color: var(--accent-ink); }
.field input, .field textarea {
  font-family: var(--font-sans); font-size: 15px; color: var(--ink);
  background: var(--bg-elev); border: 1px solid transparent; border-radius: var(--radius);
  padding: 12px 14px; width: 100%; transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.field textarea { resize: vertical; min-height: 76px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-4); }
.field input:hover, .field textarea:hover { background: var(--surface-3); }
.field input:focus, .field textarea:focus { outline: none; background: var(--surface); border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.req-form .btn { margin-top: 6px; width: 100%; }
.req-fineprint { font-size: 12.5px; color: var(--ink-3); margin: 0; text-align: center; }
.req-status { font-size: 14px; font-weight: 600; margin: 0; min-height: 1px; }
.req-status:empty { display: none; }
.req-status.ok { color: var(--ok); }
.req-status.err { color: #d63a3a; } /* semantic red, not accent */

/* ── legal pages ─────────────────────────────────────────────────────── */
.legal { padding: 56px 0 40px; }
.legal .doc { max-width: 760px; }
.legal h1 { font-family: var(--font-display); font-size: clamp(30px, 4vw, 40px); letter-spacing: -0.025em; font-weight: 700; margin: 0 0 6px; }
.legal .updated { color: var(--ink-3); font-size: 14px; margin: 0 0 34px; }
.legal h2 { font-family: var(--font-display); font-size: 21px; margin: 36px 0 10px; letter-spacing: -0.015em; font-weight: 600; }
.legal h3 { font-family: var(--font-display); font-size: 16.5px; margin: 22px 0 6px; font-weight: 600; }
.legal p, .legal li { color: var(--ink-2); font-size: 15.5px; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 7px; }
.legal strong { color: var(--ink); }
.legal code { font-family: var(--font-mono); font-size: 13px; background: var(--surface-2); border-radius: 5px; padding: 1px 6px; }
.callout { background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; padding: 16px 18px; margin: 20px 0; }
.callout p { margin: 0; color: var(--ink); }

/* ── footer ──────────────────────────────────────────────────────────── */
footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--ink-2); font-size: 14px; background: var(--surface); }
.foot { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a { color: var(--ink-2); }
.foot-links a:hover { color: var(--ink); text-decoration: none; }
.foot .copy { color: var(--ink-3); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn, .card { transition: none; } }