:root {
  color-scheme: light;
  --forest-950: #18362d;
  --forest-900: #234b3d;
  --forest-800: #2f5d50;
  --forest-700: #427361;
  --forest-100: #e6efe8;
  --moss: #71815b;
  --clay: #b86f4d;
  --clay-dark: #8e5037;
  --ochre: #c79949;
  --cream: #f4efe4;
  --paper: #fffdf8;
  --paper-2: #faf7ef;
  --ink: #23312c;
  --muted: #66716b;
  --line: #d9d8cc;
  --success: #2f7658;
  --success-soft: #e4f1e8;
  --warning: #a65d38;
  --warning-soft: #f8eadc;
  --danger: #a43d33;
  --shadow-sm: 0 10px 30px rgba(46, 55, 45, 0.08);
  --shadow-md: 0 22px 58px rgba(46, 55, 45, 0.14);
  --radius-lg: 1.35rem;
  --radius-md: 0.9rem;
  font-family: "Leelawadee UI", "Noto Sans Thai", Tahoma, sans-serif;
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 8%, rgba(177, 151, 94, 0.12), transparent 22rem),
    linear-gradient(180deg, #f7f3e9 0, var(--cream) 32rem, #f8f5ee 100%);
  font-size: 1rem;
  line-height: 1.62;
}

button,
input { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }
img { max-width: 100%; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: -5rem;
  padding: 0.7rem 1rem;
  border-radius: 0.65rem;
  color: white;
  background: var(--forest-900);
}

.skip-link:focus { top: 1rem; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(72, 83, 72, 0.14);
  background: rgba(255, 253, 248, 0.94);
  backdrop-filter: blur(18px);
}

.nav-shell,
.page-shell,
.footer-inner {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.nav-shell {
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--forest-950);
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-name > span { color: var(--clay); }

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.55rem;
  border-radius: 0.35rem 0.75rem 0.75rem 0.35rem;
  color: #fffdf5;
  background: var(--forest-800);
  box-shadow: inset 5px 0 rgba(255, 255, 255, 0.13), 3px 4px 0 #d7c7a7;
  font-family: Georgia, serif;
  font-size: 1.05rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.7rem;
}

.site-nav a {
  position: relative;
  padding: 0.4rem 0;
  color: #435249;
  font-size: 0.95rem;
  font-weight: 750;
  text-decoration: none;
}

.site-nav a:not(.nav-cart)::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: -0.25rem;
  height: 2px;
  border-radius: 999px;
  background: var(--clay);
  transition: left 180ms ease, right 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  left: 0;
  right: 0;
}

.nav-cart {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.48rem 0.75rem !important;
  border-radius: 999px;
  color: white !important;
  background: var(--forest-800);
}

.nav-cart span:last-child {
  display: grid;
  place-items: center;
  min-width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  color: var(--forest-950);
  background: #e5c887;
  font-size: 0.75rem;
}

.menu-button {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  color: var(--forest-900);
  background: var(--paper);
  font-size: 1.3rem;
  cursor: pointer;
}

main { min-height: calc(100vh - 11.5rem); }
.section { padding: 3rem 0; }
.section-tight { padding: 1.7rem 0 3.75rem; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 3.15rem 0 2.55rem;
  border-bottom: 1px solid rgba(84, 93, 78, 0.11);
  background:
    linear-gradient(110deg, rgba(255, 253, 248, 0.88), rgba(239, 235, 220, 0.68)),
    radial-gradient(circle at 88% 12%, rgba(71, 112, 85, 0.18), transparent 21rem);
  text-align: left;
}

.hero::after {
  content: "";
  position: absolute;
  right: max(3vw, calc((100vw - 1120px) / 2));
  bottom: -6.5rem;
  width: 15rem;
  height: 15rem;
  border: 1.4rem solid rgba(47, 93, 80, 0.08);
  border-radius: 52% 48% 62% 38%;
  transform: rotate(24deg);
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--clay-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.15em;
}

.hero h1,
.page-heading h1 {
  max-width: 800px;
  margin: 0;
  color: var(--forest-950);
  font-family: Georgia, "Leelawadee UI", serif;
  font-size: clamp(2.15rem, 5vw, 3.45rem);
  line-height: 1.13;
  letter-spacing: -0.035em;
}

.hero-copy {
  max-width: 620px;
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.catalog-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.catalog-title h2,
.section-title {
  margin: 0;
  color: var(--forest-950);
  font-size: 1.5rem;
}

.catalog-title p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.product-card {
  position: relative;
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 0.85rem;
  border: 1px solid rgba(97, 103, 91, 0.2);
  border-radius: var(--radius-lg);
  background: rgba(255, 253, 248, 0.96);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  transform: translateY(-5px);
  border-color: rgba(47, 93, 80, 0.42);
  box-shadow: var(--shadow-md);
}

.book-cover {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 0.55rem 1rem 1rem 0.55rem;
  background: linear-gradient(145deg, var(--cover-a), var(--cover-b));
  box-shadow: inset 8px 0 rgba(255, 255, 255, 0.12), inset -3px 0 rgba(0, 0, 0, 0.13);
}

.book-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.12), transparent 15%),
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.15), transparent 38%);
}

.book-cover::after {
  content: "";
  position: absolute;
  right: 0.55rem;
  top: 0.8rem;
  bottom: 0.8rem;
  width: 1px;
  background: rgba(255, 255, 255, 0.25);
}

.book-cover img {
  position: relative;
  width: 46%;
  max-height: 48%;
  object-fit: contain;
  filter: drop-shadow(0 13px 20px rgba(20, 27, 22, 0.28));
}

.cover-label {
  position: absolute;
  left: 1rem;
  top: 1rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  color: white;
  background: rgba(24, 54, 45, 0.28);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.cover-title {
  position: absolute;
  left: 1.2rem;
  right: 1.2rem;
  bottom: 1.1rem;
  color: #fffdf8;
  font-family: Georgia, "Leelawadee UI", serif;
  font-size: 1.22rem;
  font-weight: 800;
  text-align: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.28);
}

.product-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 1rem 0.3rem 0.25rem;
}

.pill {
  align-self: flex-start;
  padding: 0.3rem 0.68rem;
  border-radius: 999px;
  color: var(--forest-900);
  background: var(--forest-100);
  font-size: 0.74rem;
  font-weight: 850;
}

.product-card h3 {
  margin: 0 0 0.3rem;
  color: var(--forest-950);
  font-size: 1.28rem;
  line-height: 1.3;
}

.product-card p {
  min-height: 3.2rem;
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: auto;
  padding: 1rem 0 0.9rem;
}

.price {
  color: var(--clay-dark);
  font-size: 1.55rem;
  font-weight: 900;
}

.format-note {
  color: var(--muted);
  font-size: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.72rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.85rem;
  font-weight: 850;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.button:hover { transform: translateY(-1px); }

.button:focus-visible,
input:focus-visible,
.menu-button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47, 93, 80, 0.28);
  outline-offset: 3px;
}

.button-primary {
  color: white;
  background: var(--forest-800);
  box-shadow: 0 8px 20px rgba(35, 75, 61, 0.2);
}

.button-primary:hover { background: var(--forest-900); }

.button-secondary {
  border-color: #cfd3c8;
  color: var(--forest-900);
  background: var(--paper);
}

.button-secondary:hover { background: #f3f4ec; }

.button-warning {
  color: white;
  background: var(--clay-dark);
}

.button-block { width: 100%; }

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1.15rem;
  border: 1px solid rgba(97, 103, 91, 0.2);
  border-radius: 1rem;
  background: rgba(255, 253, 248, 0.78);
  overflow: hidden;
}

.trust-item {
  display: flex;
  min-height: 4rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.8rem;
  color: #49584f;
  font-size: 0.9rem;
  font-weight: 750;
  text-align: center;
}

.trust-item + .trust-item { border-left: 1px solid var(--line); }

.trust-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  color: var(--forest-800);
  background: var(--forest-100);
  font-weight: 900;
}

.demo-bar {
  margin-top: 0.85rem;
  padding: 0.72rem 1rem;
  border: 1px solid #dfc89b;
  border-radius: 0.8rem;
  color: #76522e;
  background: #fbf4e5;
  font-size: 0.88rem;
  text-align: center;
}

.page-heading { padding: 2.5rem 0 1.2rem; }
.page-heading h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 0.7rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.breadcrumb a { color: var(--forest-700); }

.detail-grid,
.checkout-grid,
.status-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(20rem, 1.08fr);
  gap: 1.6rem;
  align-items: start;
}

.detail-cover {
  width: min(100%, 28rem);
  min-height: auto;
  margin-inline: auto;
  box-shadow: var(--shadow-md);
}

.detail-cover img { width: 45%; }
.detail-cover .cover-title { bottom: 1.4rem; font-size: 1.55rem; }

.content-card,
.summary-card,
.status-card,
.track-card {
  border: 1px solid rgba(97, 103, 91, 0.2);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.content-card,
.status-card,
.track-card { padding: clamp(1.3rem, 3vw, 2rem); }

.book-kicker {
  margin: 0 0 0.25rem;
  color: var(--clay-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.1em;
}

.content-card h1,
.content-card h2,
.status-card h1,
.track-card h1 {
  margin: 0;
  color: var(--forest-950);
  line-height: 1.25;
}

.lead { color: var(--muted); font-size: 1.03rem; }

.feature-list {
  display: grid;
  gap: 0.7rem;
  padding: 0;
  margin: 1.2rem 0;
  list-style: none;
}

.feature-list li { position: relative; padding-left: 1.85rem; }

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.05rem;
  display: grid;
  place-items: center;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 999px;
  color: white;
  background: var(--success);
  font-size: 0.78rem;
  font-weight: 900;
}

.purchase-box {
  margin-top: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.purchase-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.muted { color: var(--muted); }
.form-stack { display: grid; gap: 1rem; }
.field { display: grid; gap: 0.4rem; }
.field label { color: var(--ink); font-size: 0.94rem; font-weight: 850; }

.field input {
  width: 100%;
  min-height: 3.2rem;
  padding: 0.74rem 0.95rem;
  border: 1px solid #bdc4ba;
  border-radius: 0.8rem;
  color: var(--ink);
  background: #fffefa;
}

.field input[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(164, 61, 51, 0.1);
}

.field-error {
  min-height: 1.2rem;
  margin: 0;
  color: var(--danger);
  font-size: 0.82rem;
}

.summary-card {
  position: sticky;
  top: 6rem;
  padding: 1.3rem;
}

.summary-card h2 { margin: 0 0 1rem; color: var(--forest-950); font-size: 1.2rem; }

.summary-product {
  display: grid;
  grid-template-columns: 4.8rem 1fr;
  gap: 0.85rem;
  align-items: center;
}

.summary-thumb {
  aspect-ratio: 1;
  border-radius: 0.8rem;
  object-fit: contain;
  background: var(--forest-800);
}

.summary-product h3 { margin: 0; font-size: 1rem; line-height: 1.3; }
.summary-product p { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.86rem; }

.summary-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-weight: 850;
}

.summary-total strong { color: var(--clay-dark); font-size: 1.35rem; }

.secure-note,
.privacy-note {
  margin: 1rem 0 0;
  padding: 0.78rem;
  border-radius: 0.7rem;
  color: #5d6961;
  background: #f1f2eb;
  font-size: 0.84rem;
}

.status-main { display: grid; gap: 1rem; }

.demo-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem;
  border: 2px solid #d49a68;
  border-radius: 0.9rem;
  color: #884b2c;
  background: var(--warning-soft);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.07em;
}

.status-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.48rem 0.82rem;
  border-radius: 999px;
  font-weight: 900;
}

.status-label.pending { color: #80531f; background: #f7e6bc; }
.status-label.paid { color: #256348; background: #d7eadc; }

.status-label::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: currentColor;
}

.order-number {
  margin: 0;
  color: var(--forest-950);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  word-break: break-word;
}

.order-facts {
  display: grid;
  gap: 0;
  margin: 0 0 1rem;
  border-top: 1px solid var(--line);
}

.order-facts > div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.7fr) 1.3fr;
  gap: 1rem;
  padding: 0.82rem 0;
  border-bottom: 1px solid var(--line);
}

.order-facts dt { color: var(--muted); }
.order-facts dd { margin: 0; font-weight: 750; text-align: right; word-break: break-word; }

.notice {
  padding: 0.85rem 1rem;
  border-radius: 0.8rem;
  color: #74472f;
  background: var(--warning-soft);
}

.success-panel {
  padding: 1.3rem;
  border: 1px solid #b9d5c3;
  border-radius: 1rem;
  color: #285f48;
  background: var(--success-soft);
  text-align: center;
}

.success-panel h2 { margin: 0.7rem 0 0.2rem; }
.success-panel p { margin: 0; }

.success-icon {
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  margin: 0 auto 0.8rem;
  border-radius: 999px;
  color: white;
  background: var(--success);
  font-size: 2rem;
  font-weight: 900;
}

.countdown { font-weight: 900; }
.action-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.action-row > * { flex: 1 1 12rem; }

.tracking-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.82fr) minmax(0, 1.18fr);
  gap: 1.5rem;
  align-items: start;
}

.tracking-result { min-height: 16rem; }

.empty-state {
  display: grid;
  place-items: center;
  padding: 2rem;
  border: 1px dashed #aeb7ad;
  border-radius: var(--radius-lg);
  color: var(--muted);
  background: rgba(255, 253, 248, 0.55);
  text-align: center;
}

.empty-state strong { color: var(--forest-950); font-size: 1.1rem; }
.empty-state p { max-width: 30rem; margin: 0.35rem 0 0; }

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.guide-step {
  padding: 1.2rem;
  border: 1px solid rgba(97, 103, 91, 0.2);
  border-radius: 1rem;
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.guide-step > span {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  color: white;
  background: var(--forest-800);
  font-weight: 900;
}

.guide-step h2 { margin: 0.75rem 0 0.3rem; color: var(--forest-950); font-size: 1.05rem; }
.guide-step p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.generic-error {
  max-width: 36rem;
  margin: 5rem auto;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.generic-error h1 { margin-top: 0; color: var(--forest-950); }

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #e7eee8;
  background: var(--forest-950);
}

.footer-inner {
  display: flex;
  min-height: 6.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-inner p { margin: 0; }

.toast {
  position: fixed;
  z-index: 80;
  right: 1rem;
  bottom: 1rem;
  max-width: min(24rem, calc(100% - 2rem));
  padding: 0.9rem 1rem;
  border-radius: 0.8rem;
  color: white;
  background: var(--forest-950);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(1rem);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show { opacity: 1; transform: translateY(0); }

.noscript {
  position: fixed;
  inset: auto 1rem 1rem;
  z-index: 100;
  padding: 1rem;
  color: white;
  background: var(--danger);
  text-align: center;
}

@media (max-width: 900px) {
  .product-grid,
  .guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .detail-grid,
  .checkout-grid,
  .status-grid,
  .tracking-layout { grid-template-columns: 1fr; }

  .detail-cover { width: min(100%, 25rem); }
  .summary-card { position: static; }
}

@media (max-width: 720px) {
  .nav-shell,
  .page-shell,
  .footer-inner { width: min(100% - 1.25rem, 1120px); }

  .menu-button { display: grid; place-items: center; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    padding: 0.75rem 0.65rem 1rem;
    border-bottom: 1px solid var(--line);
    background: var(--paper);
    box-shadow: var(--shadow-sm);
  }

  .site-nav.open { display: grid; gap: 0.35rem; }
  .site-nav a { padding: 0.75rem; border-radius: 0.65rem; }
  .site-nav a:hover { background: #f1f3ec; }
  .site-nav a::after { display: none; }
  .nav-cart { width: fit-content; }

  .hero { padding: 2.4rem 0 2rem; }
  .hero::after { right: -7rem; opacity: 0.65; }
  .hero h1 { max-width: 21rem; font-size: 2.25rem; }
  .hero-copy { max-width: 22rem; font-size: 1rem; }
  .section { padding: 2.2rem 0; }
  .section-tight { padding-top: 1.45rem; }

  .product-grid,
  .guide-grid { grid-template-columns: 1fr; }

  .catalog-title { align-items: start; flex-direction: column; gap: 0.25rem; }
  .product-card { max-width: 30rem; margin-inline: auto; padding: 0.75rem; }
  .book-cover { aspect-ratio: 4 / 4.8; }
  .product-card p { min-height: 0; }

  .trust-strip { grid-template-columns: 1fr; }
  .trust-item { min-height: 3.7rem; justify-content: flex-start; padding-inline: 1.2rem; }
  .trust-item + .trust-item { border-left: 0; border-top: 1px solid var(--line); }

  .page-heading { padding-top: 1.8rem; }
  .footer-inner { align-items: flex-start; flex-direction: column; justify-content: center; padding: 1.25rem 0; }
}

@media (max-width: 460px) {
  .order-facts > div { grid-template-columns: 1fr; gap: 0.12rem; }
  .order-facts dd { text-align: left; }
  .purchase-row { align-items: start; flex-direction: column; }
  .content-card, .status-card, .track-card { padding: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}