/* Secure eBook Reader - storefront.
   Paper-and-ink letterpress identity: a warm stock, one vermilion accent,
   a serif display face against a system sans for body copy. */

:root {
  --paper: #f6f1e7;
  --card: #fffdf7;
  --ink: #17150f;
  --ink-soft: #4b453a;
  --ink-faint: #8b8272;
  --rule: #ded5c2;
  --rule-soft: #eae3d5;
  --accent: #b4472b;
  --accent-deep: #8f3724;
  --green: #2f6b4f;
  --warn: #8a6d1f;
  --error: #a83232;
  --shadow: 0 18px 40px -28px rgba(23, 21, 15, .45);
  --serif: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --sans: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--accent-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
code { font: .875em/1.5 var(--mono); background: #efe8db; padding: .1rem .35rem; border-radius: 4px; }

.wrap { width: min(1120px, 100%); margin-inline: auto; padding-inline: var(--gutter); }
main.wrap { flex: 1 0 auto; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- masthead ---------- */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: rgba(246, 241, 231, .93);
  position: sticky; top: 0; z-index: 10;
}
.masthead-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand {
  display: inline-flex; align-items: center; gap: .6rem;
  font: 600 1.0625rem/1 var(--serif); letter-spacing: .01em;
  color: var(--ink); text-decoration: none;
}
.brand-mark {
  width: 20px; height: 24px; border-radius: 2px 8px 8px 2px;
  background: linear-gradient(160deg, var(--accent), var(--accent-deep));
  box-shadow: inset -3px 0 0 rgba(255, 255, 255, .35);
}
.masthead-nav { display: flex; align-items: center; gap: .35rem; }
.nav-link {
  padding: .5rem .8rem; border-radius: 999px; color: var(--ink-soft);
  text-decoration: none; font-size: .9375rem;
}
.nav-link:hover { background: #ece4d6; color: var(--ink); }
.nav-cta { background: var(--ink); color: var(--paper) !important; }
.nav-cta:hover { background: var(--accent-deep); color: #fff !important; }
.inline-form { margin: 0; }
.nav-button { border: 0; background: none; font: inherit; cursor: pointer; }

/* ---------- type ---------- */

.display {
  font: 400 clamp(2rem, 5.2vw, 3.4rem)/1.08 var(--serif);
  letter-spacing: -.015em; margin: 0 0 1rem;
}
.display em { font-style: italic; color: var(--accent-deep); }
.display-small { font-size: clamp(1.5rem, 3.4vw, 2.1rem); }
.section-title { font: 400 1.5rem/1.2 var(--serif); margin: 0 0 .35rem; }
.eyebrow {
  margin: 0 0 .85rem; font: 600 .75rem/1 var(--sans);
  text-transform: uppercase; letter-spacing: .18em; color: var(--ink-faint);
}
.lede { font-size: 1.0625rem; color: var(--ink-soft); margin: 0 0 1.25rem; max-width: 60ch; }
.fine { font-size: .8125rem; color: var(--ink-faint); line-height: 1.55; }
.hint { font-size: .8125rem; color: var(--ink-faint); margin: .35rem 0 0; }

/* ---------- bands ---------- */

.band { padding: clamp(2.25rem, 6vw, 4rem) 0; border-bottom: 1px solid var(--rule-soft); }
.band:last-of-type { border-bottom: 0; }

.band-hero {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: clamp(1.5rem, 5vw, 3.5rem); align-items: start;
}
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.5rem; }
.hero-points { list-style: none; margin: .5rem 0 0; padding: 1.25rem; border: 1px solid var(--rule); background: var(--card); }
.hero-points li {
  padding: .85rem 0; border-bottom: 1px dashed var(--rule); color: var(--ink-soft); font-size: .9375rem;
}
.hero-points li:last-child { border-bottom: 0; padding-bottom: 0; }
.hero-points li:first-child { padding-top: 0; }
.hero-points span { display: block; font: 400 1.375rem/1.1 var(--serif); color: var(--accent-deep); }

/* ---------- shelf ---------- */

.shelf-head { display: grid; grid-template-columns: 1fr auto; gap: .5rem 1.5rem; align-items: end; margin-bottom: 1.75rem; }
.shelf-head .search { grid-column: 1 / -1; }
.section-note { margin: 0; color: var(--ink-faint); font-size: .875rem; }
.search { display: flex; gap: .5rem; }
.search input {
  flex: 1 1 auto; min-width: 0; padding: .7rem .9rem; border: 1px solid var(--rule);
  border-radius: 8px; background: var(--card); color: var(--ink); font: inherit;
}
.search input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }

.grid { list-style: none; margin: 0; padding: 0; display: grid; gap: clamp(1rem, 3vw, 1.75rem); }
.grid { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.grid-compact { grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); }

.card {
  margin: 0; background: var(--card); border: 1px solid var(--rule); border-radius: 10px;
  overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .18s ease, transform .18s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-cover { position: relative; display: block; aspect-ratio: 4 / 5.4; background: #eee7d9; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: .85rem .95rem 1rem; display: flex; flex-direction: column; gap: .2rem; flex: 1; }
.card-title { font: 400 1.0625rem/1.3 var(--serif); margin: 0; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a:hover { color: var(--accent-deep); text-decoration: underline; }
.card-author { margin: 0; font-size: .875rem; color: var(--ink-soft); }
.card-meta { margin: .1rem 0 0; font-size: .8125rem; color: var(--ink-faint); }
.card-foot { margin: auto 0 0; padding-top: .85rem; display: flex; align-items: center; justify-content: space-between; gap: .5rem; }

.ribbon {
  position: absolute; left: 0; top: .75rem; padding: .25rem .6rem;
  background: var(--green); color: #fff; font: 600 .6875rem/1 var(--sans);
  text-transform: uppercase; letter-spacing: .1em; border-radius: 0 999px 999px 0;
}
.cover-fallback {
  display: grid; place-items: center; width: 100%; height: 100%; min-height: 220px;
  font: 400 clamp(2.5rem, 7vw, 4rem)/1 var(--serif); color: #cbbfa6;
  background: radial-gradient(circle at 30% 20%, #f4eee1, #e4dccb);
}
.cover-fallback-large { min-height: 320px; border: 1px solid var(--rule); border-radius: 10px; }

.price { font: 600 1rem/1 var(--sans); color: var(--ink); }
.price-large { font: 400 1.75rem/1.1 var(--serif); }
.price-line { margin: 0 0 1rem; }

.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.75rem; }
.empty { text-align: center; padding: 3rem 1rem; border: 1px dashed var(--rule); border-radius: 12px; }
.empty h3 { font: 400 1.25rem/1.3 var(--serif); margin: 0 0 .4rem; }
.empty p { margin: 0 auto 1.25rem; color: var(--ink-soft); max-width: 46ch; }

/* ---------- how it works ---------- */

.steps { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1.25rem; }
.steps { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.steps li { padding: 1.25rem 1.25rem 1.4rem; background: var(--card); border: 1px solid var(--rule); border-radius: 10px; }
.steps h3 { font: 400 1.125rem/1.3 var(--serif); margin: .6rem 0 .35rem; }
.steps p { margin: 0; color: var(--ink-soft); font-size: .9375rem; }
.step-no {
  display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%;
  background: var(--ink); color: var(--paper); font: 600 .8125rem/1 var(--sans);
}
.reassurance {
  margin: 1.75rem 0 0; padding: 1rem 1.25rem; border-left: 3px solid var(--accent);
  background: #f0e9dc; color: var(--ink-soft); font-size: .9375rem; border-radius: 0 8px 8px 0;
}
.band-cta { display: grid; gap: .75rem; justify-items: start; }

/* ---------- book page ---------- */

.crumbs { padding: 1.25rem 0 0; font-size: .8125rem; color: var(--ink-faint); }
.crumbs span { margin-inline: .35rem; }

.book {
  display: grid; grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem); padding: 1.5rem 0 3rem;
}
.book-cover img { border-radius: 8px; box-shadow: var(--shadow); width: 100%; }
.book-author { margin: -.5rem 0 1.25rem; color: var(--ink-soft); font-size: 1rem; }
.book-about { margin-top: 1.75rem; }
.book-about h2 { font: 400 1.25rem/1.3 var(--serif); margin: 0 0 .5rem; }
.book-about p { margin: 0 0 .85rem; color: var(--ink-soft); max-width: 68ch; }

.specs { margin: 1.75rem 0 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.specs > div { display: grid; grid-template-columns: 11rem 1fr; gap: 1rem; padding: .7rem 0; border-bottom: 1px solid var(--rule-soft); }
.specs dt { color: var(--ink-faint); font-size: .875rem; text-transform: uppercase; letter-spacing: .06em; }
.specs dd { margin: 0; color: var(--ink); font-size: .9375rem; }

.panel { padding: 1.25rem 1.35rem; border-radius: 10px; border: 1px solid var(--rule); background: var(--card); margin-bottom: 1.25rem; }
.panel h2 { font: 400 1.125rem/1.3 var(--serif); margin: 0 0 .4rem; }
.panel p { margin: 0 0 .85rem; color: var(--ink-soft); font-size: .9375rem; }
.panel p:last-child { margin-bottom: 0; }
.panel-owned { border-left: 3px solid var(--green); }
.panel-buy { border-left: 3px solid var(--accent); }
.panel-gate { border-left: 3px solid var(--ink-faint); }

/* ---------- auth + forms ---------- */

.auth { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: clamp(1.5rem, 5vw, 3rem); padding: 2rem 0 3rem; }
.auth-copy .lede { max-width: 44ch; }
.ticks { list-style: none; margin: 1.25rem 0; padding: 0; display: grid; gap: .5rem; }
.ticks li { padding-left: 1.5rem; position: relative; color: var(--ink-soft); font-size: .9375rem; }
.ticks li::before {
  content: '\2713'; position: absolute; left: 0; top: 0; color: var(--green); font-weight: 700;
}

.card-form {
  background: var(--card); border: 1px solid var(--rule); border-radius: 12px;
  padding: clamp(1.25rem, 3vw, 1.75rem); display: grid; gap: 1.1rem; box-shadow: var(--shadow);
  align-content: start;
}
.field { display: grid; gap: .3rem; }
.field label { font-size: .8125rem; font-weight: 600; letter-spacing: .02em; color: var(--ink-soft); }
.field input {
  padding: .7rem .85rem; border: 1px solid var(--rule); border-radius: 8px;
  background: #fffefb; color: var(--ink); font: inherit; width: 100%;
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field-error { margin: .15rem 0 0; color: var(--error); font-size: .8125rem; }
.hp-wrap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- buttons ---------- */

.btn {
  display: inline-block; padding: .75rem 1.3rem; border-radius: 999px; border: 1px solid transparent;
  font: 600 .9375rem/1 var(--sans); text-decoration: none; cursor: pointer; text-align: center;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-small { padding: .45rem .85rem; font-size: .8125rem; }
.btn-block { display: block; width: 100%; }
.btn[disabled] { opacity: .55; cursor: progress; }

/* ---------- notices + tags ---------- */

.notice { padding: .85rem 1rem; border-radius: 8px; font-size: .9375rem; margin-bottom: 1rem; }
.notice-ok { background: #e6f2ea; color: #1f4b36; border: 1px solid #bcdac8; }
.notice-error { background: #f9e9e7; color: #7a2020; border: 1px solid #e6c2bd; }
.notice-warn { background: #f8f1dd; color: #6b5416; border: 1px solid #e3d3a8; }
.notice-info { background: #eef0f3; color: #384150; border: 1px solid #d3d8e0; }

.tag {
  display: inline-block; padding: .1rem .5rem; border-radius: 999px;
  font: 600 .6875rem/1.6 var(--sans); text-transform: uppercase; letter-spacing: .08em;
}
.tag-ok { background: #e6f2ea; color: #1f4b36; }
.tag-warn { background: #f8f1dd; color: #6b5416; }
.tag-error { background: #f9e9e7; color: #7a2020; }
.tag-muted { background: #eee8dc; color: #6a6252; }

/* ---------- account + checkout ---------- */

.account-head {
  display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; align-items: start;
  padding: 2rem 0 1.5rem; border-bottom: 1px solid var(--rule);
}
.account-head .display, .account-head .lede { margin-bottom: .35rem; }
.account-counts { margin: 0; text-align: right; }
.account-counts p { margin: 0 0 .35rem; color: var(--ink-soft); font-size: .9375rem; }
.account-counts strong { font: 400 1.5rem/1 var(--serif); color: var(--accent-deep); margin-right: .25rem; }

.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: clamp(1.5rem, 4vw, 2.5rem); }

.table { width: 100%; border-collapse: collapse; font-size: .9375rem; }
.table th {
  text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--rule);
  font: 600 .6875rem/1.4 var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-faint);
}
.table td { padding: .7rem .6rem; border-bottom: 1px solid var(--rule-soft); vertical-align: middle; }
.table td.fine { white-space: nowrap; }

.device-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.device-list li { padding: .85rem 1rem; background: var(--card); border: 1px solid var(--rule); border-radius: 10px; }
.device-name { font-weight: 600; margin-right: .5rem; }
.device-list .fine { display: block; margin-top: .2rem; }

.checkout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 340px); gap: clamp(1.5rem, 4vw, 3rem); padding: 1rem 0 3rem; }
.checkout-main { min-width: 0; }
.receipt { align-self: start; background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 1.25rem; }
.receipt-title { font: 400 1.125rem/1.3 var(--serif); margin: 0 0 1rem; }
.receipt-book { display: grid; grid-template-columns: 84px 1fr; gap: 1rem; align-items: center; padding-bottom: 1rem; border-bottom: 1px solid var(--rule-soft); }
.receipt-book img { border-radius: 4px; width: 84px; }
.receipt-book .cover-fallback { min-height: 112px; height: 112px; border-radius: 4px; }
.receipt-name { margin: 0 0 .2rem; font: 400 1rem/1.3 var(--serif); }
.receipt-lines { margin: 1rem 0 0; display: grid; }
.receipt-lines > div { display: flex; justify-content: space-between; gap: 1rem; padding: .45rem 0; font-size: .875rem; }
.receipt-lines dt { color: var(--ink-faint); }
.receipt-lines dd { margin: 0; color: var(--ink); text-align: right; }
.panel-order { border-left: 3px solid var(--accent); }
.panel-order h2 { font-family: var(--mono); font-size: .8125rem; letter-spacing: .04em; color: var(--ink-faint); text-transform: none; }

/* ---------- footer ---------- */

.colophon { border-top: 1px solid var(--rule); padding: 2rem 0 2.5rem; margin-top: 2rem; background: #f1ebdf; }
.colophon-inner { display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; }
.colophon p { margin: 0; color: var(--ink-soft); font-size: .875rem; }
.colophon .fine { color: var(--ink-faint); }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .band-hero, .book, .auth, .checkout { grid-template-columns: 1fr; }
  .book-cover { max-width: 300px; }
  .auth-copy { order: -1; }
  .receipt { order: -1; }
  .account-counts { text-align: left; }
  .shelf-head { grid-template-columns: 1fr; align-items: start; }
  .specs > div { grid-template-columns: 1fr; gap: .1rem; }
}

@media (max-width: 520px) {
  .masthead-inner { min-height: 56px; }
  .brand { font-size: .9375rem; }
  .nav-link { padding: .45rem .6rem; font-size: .875rem; }
  .grid, .grid-compact { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .display { font-size: 1.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}