/* ===========================================================
   Under The Hood - shared design system
   One stylesheet for index / support / privacy / terms.
   Palette matches the app: near-black surfaces, amber accent.
   =========================================================== */

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
html { color-scheme: dark; scroll-behavior: smooth; }

/* ---- Tokens ---- */
:root {
  /* surfaces */
  --bg:          #08080A;
  --bg-soft:     #0E0E11;
  --surface:     #17171B;
  --surface-2:   #1E1E23;

  /* brand */
  --amber:       #E8960C;
  --amber-lift:  #FFAE2E;
  --amber-dim:   rgba(232,150,12,0.12);
  --amber-glow:  rgba(232,150,12,0.28);

  /* text */
  --text:        #F4F4F6;
  --text-sec:    #A2A2AE;
  --text-ter:    #6C6C78;

  /* verdict colors, same as in-app */
  --fair:        #97C459;
  --caution:     #F0B95F;
  --over:        #F09595;

  /* lines */
  --border:      rgba(255,255,255,0.08);
  --border-hi:   rgba(255,255,255,0.16);

  /* type */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* radii */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 26px;

  /* rhythm */
  --gutter: clamp(1.25rem, 4vw, 2rem);
  --section-y: clamp(3.5rem, 9vw, 6.5rem);
  --maxw: 1080px;
  --maxw-prose: 720px;

  --shadow-lift: 0 18px 50px -18px rgba(0,0,0,0.85);
}

/* ---- Base ---- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

a { color: var(--amber); text-decoration: none; }
a:hover { color: var(--amber-lift); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

::selection { background: var(--amber); color: #08080A; }

.skip-link {
  position: absolute; left: -9999px;
  background: var(--amber); color: #08080A;
  padding: 0.6rem 1rem; border-radius: 0 0 var(--r-sm) 0;
  font-weight: 600; z-index: 100;
}
.skip-link:focus { left: 0; top: 0; }

/* ---- Layout helpers ---- */
.wrap  { max-width: var(--maxw);       margin-inline: auto; padding-inline: var(--gutter); }
.prose { max-width: var(--maxw-prose); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.85rem;
}
.section-title { font-size: clamp(1.6rem, 3.4vw, 2.25rem); margin-bottom: 0.75rem; }
.lede { color: var(--text-sec); font-size: 1.0625rem; max-width: 56ch; }
.center { text-align: center; }
.center .lede { margin-inline: auto; }

/* ---- Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,8,10,0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin-inline: auto;
  padding: 0.85rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.nav-logo {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 600;
  color: var(--text); letter-spacing: -0.02em;
}
.nav-logo:hover { color: var(--text); }
.nav-logo span, .nav-logo { white-space: nowrap; }
.nav-logo img { width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 3vw, 1.9rem); }
.nav-links a {
  color: var(--text-sec); font-size: 0.9rem; font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a[aria-current="page"] { color: var(--text); }
.nav-cta {
  background: var(--amber); color: #08080A !important;
  padding: 0.45rem 0.95rem; border-radius: 999px;
  font-weight: 600; font-size: 0.85rem;
  transition: background 0.15s ease, transform 0.15s ease;
}
.nav-cta:hover { background: var(--amber-lift); transform: translateY(-1px); }
@media (max-width: 620px) {
  .nav-cta { display: none; }
  /* in-page section anchors are reachable by scrolling; drop them so the
     wordmark and the cross-page links keep a single line */
  .nav-links a[href^="#"] { display: none; }
}
@media (max-width: 380px) {
  .nav-logo { font-size: 0.95rem; }
  .nav-links { gap: 0.9rem; }
}

/* ---- App Store badge ---- */
.store-badge {
  display: inline-block; border-radius: var(--r-md);
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.store-badge:hover { transform: translateY(-2px); opacity: 0.9; }
.store-badge:active { transform: translateY(0); }
.store-badge svg { height: 52px; width: auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.925rem;
  padding: 0.75rem 1.4rem; border-radius: var(--r-md);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--amber); color: #08080A; }
.btn-primary:hover { background: var(--amber-lift); color: #08080A; transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--border-hi); color: var(--text); }
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-2px); }

/* ---- Cards ---- */
/* NOTE: min track is 228px so four cards fit the 1080px wrap minus gutters
   (4x228 + 3x18.4 = 967 < 1016). Raising it drops the row to three. */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1.6rem;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-hi); background: var(--surface-2); }
.card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 0.4rem; }
.card p  { font-size: 0.9rem; color: var(--text-sec); line-height: 1.6; }

.card-icon {
  width: 42px; height: 42px; border-radius: var(--r-md);
  background: var(--amber-dim);
  display: grid; place-items: center;
  margin-bottom: 1rem;
}
.card-icon svg { width: 21px; height: 21px; stroke: var(--amber); fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* ---- Device screenshot frame ---- */
.device { position: relative; }
.device img {
  width: 100%; height: auto;
  border-radius: var(--r-xl);
  filter: drop-shadow(0 26px 60px rgba(0,0,0,0.9));
}
.device::after {
  content: ''; position: absolute; inset: -14% -22% 4%;
  background: radial-gradient(closest-side, var(--amber-glow), transparent 72%);
  z-index: -1; pointer-events: none;
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding-block: 3rem 2.5rem;
}
.footer-grid {
  max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter);
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem 2rem;
}
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }
.footer-brand p { color: var(--text-ter); font-size: 0.875rem; margin-top: 0.75rem; max-width: 34ch; }
.footer h4 {
  font-family: var(--font-body); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-ter); margin-bottom: 0.9rem;
}
.footer ul { list-style: none; display: grid; gap: 0.55rem; }
.footer ul a { color: var(--text-sec); font-size: 0.9rem; }
.footer ul a:hover { color: var(--amber); }
.footer-legal {
  max-width: var(--maxw); margin: 2.75rem auto 0; padding-inline: var(--gutter);
  padding-top: 1.5rem; border-top: 1px solid var(--border);
  color: var(--text-ter); font-size: 0.8125rem;
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; justify-content: space-between;
}

/* ---- Document pages (support / privacy / terms) ---- */
.doc-header { padding: 3.5rem 0 2rem; border-bottom: 1px solid var(--border); }
.doc-header h1 { font-size: clamp(1.9rem, 4.5vw, 2.6rem); margin-bottom: 0.6rem; }
.doc-header .subtitle { color: var(--text-sec); }
.doc-meta { color: var(--text-ter); font-size: 0.8125rem; margin-top: 0.9rem; }

.doc-body { padding-block: 3rem 4.5rem; }
.doc-body h2 {
  font-size: 1.3rem; margin: 2.75rem 0 0.9rem;
  scroll-margin-top: 5rem;
}
.doc-body h2:first-child { margin-top: 0; }
.doc-body h3 { font-size: 1.02rem; margin: 1.6rem 0 0.5rem; }
.doc-body p, .doc-body li { color: var(--text-sec); font-size: 0.9375rem; }
.doc-body p { margin-bottom: 1rem; }
.doc-body ul, .doc-body ol { margin: 0 0 1.25rem 1.25rem; display: grid; gap: 0.45rem; }
.doc-body strong { color: var(--text); font-weight: 600; }
.doc-body a { text-decoration: underline; text-underline-offset: 3px; }
.doc-body .btn,
.doc-body .faq-nav a,
.doc-body .toc a,
.doc-body summary a { text-decoration: none; }

/* ---- Table of contents (legal pages) ---- */
.toc {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 1.4rem 1.6rem; margin-bottom: 2.75rem;
}
.toc h2 {
  font-family: var(--font-body) !important; font-size: 0.7rem !important; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-ter);
  margin: 0 0 0.9rem !important;
}
.toc ol { margin: 0; padding-left: 1.1rem; display: grid; gap: 0.4rem; }
.toc a { color: var(--text-sec); font-size: 0.875rem; text-decoration: none; }
.toc a:hover { color: var(--amber); }

/* ---- FAQ accordions ---- */
.faq-nav {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.faq-nav a {
  border: 1px solid var(--border); border-radius: 999px;
  padding: 0.4rem 0.9rem; font-size: 0.825rem; font-weight: 500;
  color: var(--text-sec); transition: border-color 0.15s, color 0.15s;
}
.faq-nav a:hover { border-color: var(--amber); color: var(--amber); }

.faq-group { margin-bottom: 2.75rem; scroll-margin-top: 5rem; }
.faq-group > h2 {
  font-family: var(--font-body); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber);
  margin-bottom: 1rem;
}

.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-item > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
  padding: 1.05rem 0;
  font-size: 0.9375rem; font-weight: 500; color: var(--text);
  transition: color 0.15s ease;
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary:hover { color: var(--amber); }
.faq-item > summary::after {
  content: ''; flex-shrink: 0; margin-top: 0.42rem;
  width: 9px; height: 9px;
  border-right: 2px solid var(--text-ter); border-bottom: 2px solid var(--text-ter);
  transform: rotate(45deg); transition: transform 0.2s ease, border-color 0.2s ease;
}
.faq-item[open] > summary { color: var(--amber); }
.faq-item[open] > summary::after { transform: rotate(-135deg); border-color: var(--amber); }
.faq-answer { padding: 0 0 1.15rem; }
.faq-answer p { font-size: 0.9rem; color: var(--text-sec); margin-bottom: 0.75rem; }
.faq-answer p:last-child { margin-bottom: 0; }
.faq-answer em { color: var(--text); font-style: normal; background: var(--surface-2); padding: 0.05em 0.35em; border-radius: 4px; }

/* ---- Contact box ---- */
.contact-box {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-hi);
  border-radius: var(--r-lg);
  padding: 2rem; margin-top: 3rem;
}
.contact-box h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.contact-box p { color: var(--text-sec); font-size: 0.9rem; margin-bottom: 1.35rem; }

/* ---- Motion ---- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.in { opacity: 1; transform: none; }

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