/* Tap Mobile — Help Center. Design tokens mirrored from tap.pm. */
:root {
  --bg: #050507;
  --bg-card: #10111a;
  --bg-card-2: #0c0d15;
  --border: #1a1b25;
  --border-hover: #2e2f3d;
  --text: #ededf0;
  --text-2: #9496ad;
  --muted: #7e8099;
  --accent: #4f8fff;
  --accent-dim: #3b6fd4;
  --purple: #9f7afa;
  --grad: linear-gradient(135deg, #6aabff, #b18cff);
  --grad-soft: linear-gradient(135deg, #ffffff0a, #ffffff05);
  --radius-md: .375rem;
  --radius-lg: .5rem;
  --radius-xl: .75rem;
  --radius-2xl: 1rem;
  --font-sans: "DM Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;
  --maxw: 1080px;
  --shadow-glow: 0 20px 60px #4f8fff1f;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

/* Nothing may exceed the viewport; long tokens (URLs, emails) must wrap */
h1, h2, h3, h4, p, li, a, span, summary, code, .qa-body { overflow-wrap: anywhere; word-break: break-word; }
img, svg, video, iframe { max-width: 100%; height: auto; }
/* Hard containment so no descendant can force horizontal scroll */
.container, main, header, footer, section,
.app-layout, .app-content, .app-side, .cat, .qa, .qa-body,
.hero, .search, .apps-grid, .popular-list, .cta { max-width: 100%; min-width: 0; }
.app-content, .qa-body { overflow-x: clip; }

/* Ambient glows, fixed behind content (mirrors tap.pm radial accents) */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 15% -10%, #4f8fff14, transparent 60%),
    radial-gradient(50rem 40rem at 100% 0%, #9f7afa12, transparent 55%),
    radial-gradient(60rem 50rem at 50% 120%, #4f8fff0d, transparent 60%);
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.wordmark { display: inline-flex; align-items: baseline; gap: 10px; }
.wordmark-dot {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -.02em;
}
.wordmark-sub { font-size: .8rem; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { color: var(--text-2); font-size: .92rem; transition: color .15s; }
.site-nav a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 16px;
  border: 1px solid var(--border-hover);
  border-radius: 999px;
  color: var(--text) !important;
  background: var(--grad-soft);
  transition: border-color .15s, background .15s;
}
.nav-cta:hover { border-color: var(--accent); }

/* ---------- Hero / landing ---------- */
.hero { text-align: center; padding: 88px 0 40px; }
.hero-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: 0 0 18px;
}
.hero-title em {
  font-style: italic;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--text-2);
  font-size: 1.06rem;
}

/* ---------- Search ---------- */
.search { position: relative; max-width: 560px; margin: 0 auto; }
.search input,
.app-search input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-xl);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search input::placeholder,
.app-search input::placeholder { color: var(--muted); }
.search input:focus,
.app-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px #4f8fff1f;
}
.search-results {
  position: absolute;
  z-index: 40;
  left: 0; right: 0;
  margin-top: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px #00000066;
  overflow: hidden;
  text-align: left;
}
.search-results a {
  display: block;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  transition: background .12s;
}
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover,
.search-results a.active { background: #ffffff08; }
.search-results .sr-q { color: var(--text); font-weight: 500; }
.search-results .sr-meta { color: var(--muted); font-size: .82rem; margin-top: 2px; }
.search-results .sr-empty { padding: 16px 18px; color: var(--muted); }
.search-results mark { background: #4f8fff33; color: var(--text); border-radius: 3px; padding: 0 2px; }

/* ---------- App grid ---------- */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 28px 0 12px;
}
.app-tile {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  transition: transform .18s, border-color .18s, box-shadow .18s;
}
.app-tile:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}
.app-mono {
  flex: none;
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  border-radius: var(--radius-xl);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: #fff;
  box-shadow: 0 8px 24px #00000040;
}
.app-mono.lg { width: 68px; height: 68px; font-size: 2rem; border-radius: var(--radius-2xl); }
.app-icon { flex: none; width: 52px; height: 52px; border-radius: var(--radius-xl); object-fit: cover; box-shadow: 0 8px 24px #00000040; }
.app-icon.lg { width: 68px; height: 68px; border-radius: var(--radius-2xl); }
.app-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.app-name { font-weight: 600; font-size: 1.1rem; }
.app-tag { color: var(--accent); font-size: .85rem; }
.app-blurb { color: var(--text-2); font-size: .9rem; margin-top: 4px; }
.app-arrow { margin-left: auto; color: var(--muted); font-size: 1.2rem; transition: transform .18s, color .18s; }
.app-tile:hover .app-arrow { transform: translateX(4px); color: var(--accent); }

/* ---------- Popular ---------- */
.section-h {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.8rem;
  letter-spacing: -.01em;
  margin: 48px 0 18px;
}
.popular-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.popular-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-2);
  transition: border-color .15s, color .15s;
}
.popular-item:hover { border-color: var(--border-hover); color: var(--text); }
.pill {
  flex: none;
  font-size: .72rem;
  color: var(--accent);
  border: 1px solid #4f8fff33;
  background: #4f8fff14;
  padding: 3px 8px;
  border-radius: 999px;
}

/* ---------- App page layout ---------- */
.app-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding-top: 40px;
  padding-bottom: 40px;
  align-items: start;
}
.app-side { position: sticky; top: 88px; }
.cat-nav { display: flex; flex-direction: column; gap: 2px; }
.cat-nav a {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: .9rem;
  border-left: 2px solid transparent;
  transition: color .15s, background .15s, border-color .15s;
}
.cat-nav a:hover { color: var(--text); background: #ffffff06; }
.cat-nav a.active { color: var(--text); border-left-color: var(--accent); background: #4f8fff0f; }
.cat-nav-back { color: var(--muted) !important; margin-bottom: 10px; font-size: .85rem !important; }

.app-content { min-width: 0; }
.app-hero { display: flex; align-items: center; gap: 18px; margin-bottom: 8px; }
.app-hero h1 { font-size: 2rem; margin: 0; letter-spacing: -.02em; }
.app-hero p { margin: 4px 0 0; color: var(--accent); }
.app-search { margin: 22px 0 8px; }

.cat { margin-top: 36px; scroll-margin-top: 88px; }

/* ---------- Accordion Q&A ---------- */
.qa {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  margin-bottom: 10px;
  scroll-margin-top: 96px;
  transition: border-color .15s;
}
.qa[open] { border-color: var(--border-hover); }
.qa.hidden { display: none; }
.qa summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  font-weight: 500;
  color: var(--text);
  position: relative;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "";
  flex: none;
  margin-left: auto;
  width: 9px; height: 9px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .18s, border-color .18s;
}
.qa[open] summary::after { transform: rotate(-135deg); border-color: var(--accent); }
.qa summary:hover { color: #fff; }
.qa-link {
  opacity: 0;
  color: var(--muted);
  font-weight: 400;
  transition: opacity .15s;
}
.qa summary:hover .qa-link { opacity: 1; }
.qa-body {
  padding: 0 18px 18px;
  color: var(--text-2);
}
.qa-body p { margin: 0 0 12px; }
.qa-body h4, .qa-body h5 { color: var(--text); margin: 18px 0 8px; font-size: 1rem; }
.qa-body ul, .qa-body ol { margin: 0 0 12px; padding-left: 20px; }
.qa-body li { margin: 4px 0; }
.qa-body a { color: var(--accent); }
.qa-body a:hover { text-decoration: underline; }
.qa-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .88em;
  background: #ffffff0d;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
}
.qa-body strong { color: var(--text); }

/* ---------- CTA ---------- */
.cta {
  margin: 56px 0 16px;
  padding: 40px;
  text-align: center;
  background: var(--grad-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
}
.cta h2 { font-family: var(--font-serif); font-weight: 400; font-size: 1.9rem; margin: 0 0 8px; }
.cta p { color: var(--text-2); max-width: 520px; margin: 0 auto 22px; }
.btn {
  display: inline-block;
  padding: 13px 26px;
  background: var(--accent);
  color: #fff !important;
  font-weight: 600;
  border-radius: 999px;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); background: #5d99ff; box-shadow: 0 10px 30px #4f8fff40; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 40px 0 56px; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-brand p { color: var(--muted); font-size: .9rem; margin: 8px 0 0; max-width: 260px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: var(--text-2); font-size: .9rem; transition: color .15s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--muted); font-size: .82rem; margin-top: 28px; }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .apps-grid, .popular-list { grid-template-columns: 1fr; }
  .app-layout { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .app-content { grid-column: 1; }
  .app-side { position: static; max-width: 100%; }
  .cat-nav { flex-direction: row; overflow-x: auto; gap: 6px; padding-bottom: 6px; max-width: 100%; -webkit-overflow-scrolling: touch; }
  .cat-nav a { white-space: nowrap; border-left: 0; border-bottom: 2px solid transparent; }
  .cat-nav a.active { border-left: 0; border-bottom-color: var(--accent); }
  .cat-nav-back { display: none; }
  .app-hero { flex-wrap: wrap; gap: 14px; }
  .app-hero h1 { font-size: 1.7rem; }
  .cta { padding: 30px 18px; }
  .qa summary { padding: 14px; }
  .qa-body { padding: 0 14px 16px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .site-nav { gap: 14px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .hero { padding: 56px 0 28px; }
  .section-h { font-size: 1.5rem; }
  .app-mono.lg { width: 56px; height: 56px; font-size: 1.7rem; }
  .popular-item { padding: 12px 14px; }
}