/* ============================================================
   LONGBOX — marketing site
   Design tokens mirror the app's "cave" palette
   (src/constants/theme.ts). Newsprint paper, ink, JetBrains
   Mono only. Sharp corners, hairline rules, inverted bars.
   ============================================================ */

:root {
  /* palette — from app theme.ts */
  --paper: #f1efe9;
  --ink: #161513;
  --surface: #faf9f6;
  --muted: #6f6b63;
  --tan: #ede0cc;
  --slab-blue: #c9daf2;
  --green: #2f9e5f;
  --green-tint: #dff0df;
  --danger: #b00020;
  --scrim: rgba(22, 21, 19, 0.5);
  --hairline: #d8d4ca;

  /* type */
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", "Menlo",
    "Consolas", monospace;

  /* rhythm — 4/8/12/16/24 grid, 16 gutter */
  --xs: 4px;
  --sm: 8px;
  --md: 12px;
  --lg: 16px;
  --xl: 24px;
  --xxl: 48px;
  --gutter: 16px;

  --maxw: 1000px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* faint newsprint tooth */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.035;
  background-image: radial-gradient(var(--ink) 0.5px, transparent 0.5px);
  background-size: 4px 4px;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--ink);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

::selection {
  background: var(--tan);
  color: var(--ink);
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

section {
  padding: var(--xxl) 0;
  border-top: 2px solid var(--ink);
}

/* ---------- eyebrow / labels ---------- */
.label {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 var(--lg);
}

/* ---------- top nav ---------- */
header.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
}
header.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 3px;
  font-size: 16px;
}
.brand .frame {
  color: var(--ink);
  font-weight: 800;
}
.nav-links {
  display: flex;
  gap: var(--xl);
  align-items: center;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-links a.cta {
  color: var(--paper);
  background: var(--ink);
  padding: 8px 14px;
}
.nav-links a.cta:hover {
  color: var(--paper);
}
@media (max-width: 620px) {
  .nav-links a:not(.cta) {
    display: none;
  }
}

/* ---------- wordmark / logo ---------- */
.wordmark {
  display: inline-block;
  position: relative;
  padding: 0.35em 0.5em;
}
/* camera focus-frame brackets, echoing the app icon */
.wordmark::before,
.wordmark::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 3px solid var(--ink);
}
.wordmark::before {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}
.wordmark::after {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
}

/* ---------- hero ---------- */
.hero {
  border-top: none;
  padding-top: var(--xxl);
  text-align: center;
}
.hero h1 {
  font-weight: 800;
  letter-spacing: 6px;
  font-size: clamp(40px, 11vw, 96px);
  line-height: 1;
  margin: 0 0 var(--sm);
}
.hero .kicker {
  font-weight: 800;
  letter-spacing: 8px;
  font-size: clamp(13px, 3.5vw, 20px);
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--xl);
}
.rule {
  width: 96px;
  height: 4px;
  background: var(--ink);
  margin: var(--xl) auto;
  border: none;
}
.hero .lede {
  max-width: 620px;
  margin: 0 auto var(--xl);
  font-size: clamp(16px, 4vw, 20px);
  line-height: 1.55;
}
.hero .lede b {
  background: var(--tan);
  padding: 1px 4px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 14px;
  padding: 16px 28px;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  cursor: pointer;
  border-radius: 0;
  transition: transform 0.04s ease;
}
.btn:active {
  transform: translateY(1px);
}
.btn.ghost {
  background: var(--paper);
  color: var(--ink);
}
.btn-row {
  display: flex;
  gap: var(--md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- store badges ---------- */
.stores {
  display: flex;
  gap: var(--md);
  flex-wrap: wrap;
  justify-content: center;
}
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 2px solid var(--ink);
  background: var(--surface);
  padding: 12px 20px;
  text-decoration: none;
  color: var(--ink);
  min-width: 200px;
}
.store-badge:hover {
  background: var(--ink);
  color: var(--paper);
}
.store-badge:hover .store-badge__glyph {
  color: var(--paper);
}
.store-badge__glyph {
  font-size: 26px;
  line-height: 1;
}
.store-badge__t {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-align: left;
}
.store-badge__t small {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}
.store-badge:hover .store-badge__t small {
  color: var(--slab-blue);
}
.store-badge__t span {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 1px;
}

/* ---------- feature cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--lg);
}
@media (max-width: 780px) {
  .grid {
    grid-template-columns: 1fr;
  }
}
.card {
  border: 2px solid var(--ink);
  background: var(--surface);
  border-radius: 3px;
  padding: var(--xl);
}
.card .n {
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--muted);
  display: block;
  margin-bottom: var(--md);
}
.card h3 {
  margin: 0 0 var(--sm);
  font-size: 18px;
  letter-spacing: 0.5px;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- the loop (numbered steps) ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 2px solid var(--ink);
  border-radius: 3px;
  overflow: hidden;
}
@media (max-width: 780px) {
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 460px) {
  .steps {
    grid-template-columns: 1fr;
  }
}
.step {
  padding: var(--xl);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.step .num {
  font-weight: 800;
  font-size: 28px;
  display: block;
  margin-bottom: var(--sm);
}
.step h4 {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.step p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- download / QR block ---------- */
.download {
  text-align: center;
}
.download-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--xxl);
  align-items: center;
  border: 2px solid var(--ink);
  border-radius: 3px;
  background: var(--surface);
  padding: var(--xxl);
  text-align: left;
}
@media (max-width: 720px) {
  .download-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--xl);
    padding: var(--xl);
  }
}
.qr {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: var(--md);
  width: 208px;
  height: 208px;
  justify-self: center;
}
.qr img {
  width: 100%;
  height: 100%;
}
.download h2 {
  margin: 0 0 var(--sm);
  font-size: 26px;
  letter-spacing: 1px;
}
.download p {
  color: var(--muted);
  margin: 0 0 var(--lg);
}
.qr-caption {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: var(--md);
  text-align: center;
}

/* ---------- callout strip ---------- */
.strip {
  background: var(--ink);
  color: var(--paper);
  border: none;
}
.strip .label {
  color: var(--slab-blue);
}
.strip h2 {
  font-size: clamp(22px, 5vw, 34px);
  letter-spacing: 1px;
  margin: 0 0 var(--md);
  max-width: 720px;
}
.strip p {
  color: #cfcbc2;
  max-width: 620px;
  margin: 0;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--green);
  color: var(--green);
  background: rgba(47, 158, 95, 0.12);
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: var(--lg);
}

/* ---------- footer ---------- */
footer {
  border-top: 2px solid var(--ink);
  padding: var(--xl) 0 var(--xxl);
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--xl);
  flex-wrap: wrap;
}
footer .foot-links {
  display: flex;
  gap: var(--xl);
  flex-wrap: wrap;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 700;
}
footer .foot-links a {
  text-decoration: none;
  color: var(--muted);
}
footer .foot-links a:hover {
  color: var(--ink);
}
footer .copy {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}

/* ============================================================
   article pages (privacy / terms / support)
   ============================================================ */
.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--xxl) var(--gutter) var(--xxl);
}
.doc h1 {
  font-weight: 800;
  letter-spacing: 3px;
  font-size: clamp(30px, 8vw, 52px);
  margin: 0 0 var(--sm);
  text-transform: uppercase;
}
.doc .updated {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--xl);
}
.doc hr {
  border: none;
  border-top: 2px solid var(--ink);
  margin: var(--xl) 0;
}
.doc h2 {
  font-size: 15px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin: var(--xxl) 0 var(--md);
  padding-top: var(--lg);
  border-top: 1px solid var(--hairline);
}
.doc h2:first-of-type {
  border-top: none;
  padding-top: 0;
}
.doc h3 {
  font-size: 14px;
  letter-spacing: 1px;
  margin: var(--xl) 0 var(--sm);
}
.doc p,
.doc li {
  color: #2c2a26;
  font-size: 15px;
}
.doc ul {
  padding-left: 1.2em;
}
.doc li {
  margin-bottom: var(--sm);
}
.doc a {
  color: var(--ink);
}
.doc .tldr {
  border: 2px solid var(--ink);
  background: var(--tan);
  border-radius: 3px;
  padding: var(--lg) var(--xl);
  margin-bottom: var(--xl);
}
.doc .tldr .label {
  margin-bottom: var(--sm);
  color: var(--ink);
}
.doc .tldr p {
  margin: 0;
  color: var(--ink);
}
.back-link {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: var(--xl);
}
.back-link:hover {
  color: var(--ink);
}