/* AKMK Kits — product pages (static, no CDN) */

:root {
  --bg: #12141c;
  --bg-soft: #181b26;
  --fg: #f4f5f8;
  --muted: #a4abbe;
  --muted-2: #7f879c;
  --card: rgba(255, 255, 255, 0.045);
  --card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.1);
  --primary: #e8a83a;
  --primary-soft: rgba(232, 168, 58, 0.14);
  --primary-fg: #1f1608;
  --accent: #5eb8f0;
  --success: #5ecf8f;
  --radius: 0.85rem;
  --radius-lg: 1.25rem;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -15%;
  z-index: -1;
  background:
    radial-gradient(70% 55% at 8% 0%, rgba(94, 184, 240, 0.11), transparent 55%),
    radial-gradient(55% 45% at 100% 15%, rgba(232, 168, 58, 0.09), transparent 55%);
  pointer-events: none;
}

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

.wrap {
  width: min(var(--maxw), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 20, 28, 0.88);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  padding-block: 0.5rem;
}

.brand-link { display: flex; flex-direction: column; gap: 0.1rem; }

.brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--muted);
}

.back-link {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.15s ease;
}

.back-link:hover { color: var(--fg); }

.hero {
  padding: 3rem 0 2rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.h-xl {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4.5vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.h-lg {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 1rem;
  max-width: 44rem;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--muted);
}

.offer {
  margin: 0 0 1.5rem;
  max-width: 40rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid rgba(94, 184, 240, 0.25);
  background: rgba(94, 184, 240, 0.07);
  font-size: 0.95rem;
  color: var(--fg);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, #f0c06a, #e8a83a);
  color: var(--primary-fg);
  box-shadow: 0 8px 24px -8px rgba(232, 168, 58, 0.55);
}

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

.btn-secondary {
  background: var(--card);
  border-color: var(--border);
  color: var(--fg);
}

.btn-secondary:hover {
  background: var(--card-hover);
  border-color: rgba(255, 255, 255, 0.16);
}

.section {
  padding: 2rem 0;
}

.section-title {
  margin: 0 0 1rem;
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
  font-weight: 700;
}

.grid-2 {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card {
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
}

.list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.55rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.85;
}

.modules {
  display: grid;
  gap: 0.65rem;
}

.module-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.module-num {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
}

.module-text {
  font-size: 0.93rem;
  color: var(--muted);
}

.module-text strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--fg);
  font-weight: 600;
}

.price-block {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(232, 168, 58, 0.3);
  background: linear-gradient(160deg, rgba(232, 168, 58, 0.1), rgba(255, 255, 255, 0.02));
}

.price {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price-note {
  margin: 0 0 1.25rem;
  font-size: 0.88rem;
  color: var(--muted-2);
}

.cta-block {
  margin-top: 0.5rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  text-align: center;
}

.cta-block p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.cta-block .actions {
  justify-content: center;
}

.note-box {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  font-size: 0.85rem;
  color: var(--muted-2);
}

.site-footer {
  margin-top: 1.5rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a:hover { color: var(--fg); }

/* Subpages */
.page-narrow { max-width: 42rem; }

.page-center {
  min-height: calc(100vh - 8rem);
  display: flex;
  align-items: center;
  padding: 2rem 0;
}

.success-icon {
  width: 3rem;
  height: 3rem;
  margin-bottom: 1rem;
  color: var(--success);
}

.success-icon svg {
  width: 100%;
  height: 100%;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.prose h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.prose h2 {
  margin: 1.5rem 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.prose li { margin-bottom: 0.4rem; }

/* Checklist */
.checklist-header {
  padding: 2rem 0 1rem;
}

.checklist-progress {
  margin: 1rem 0 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 0.9rem;
  color: var(--muted);
}

.checklist-progress strong { color: var(--fg); }

.check-section {
  margin-bottom: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
}

.check-section summary {
  padding: 1rem 1.15rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.check-section summary::-webkit-details-marker { display: none; }

.check-section summary::after {
  content: "+";
  color: var(--muted);
  font-size: 1.1rem;
}

.check-section[open] summary::after { content: "−"; }

.check-items {
  padding: 0 1.15rem 1rem;
  border-top: 1px solid var(--border);
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.92rem;
  color: var(--muted);
  cursor: pointer;
}

.check-item:last-child { border-bottom: none; }

.check-item input {
  margin-top: 0.2rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--primary);
  flex-shrink: 0;
}

.check-item.is-done {
  color: var(--muted-2);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 255, 255, 0.2);
}

.checklist-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 2rem;
}

.check-phrase {
  margin: 0.35rem 0 0.65rem;
  padding: 0.55rem 0.65rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.88rem;
}

.check-phrase .thai {
  display: block;
  font-size: 1.05rem;
  color: var(--fg);
  margin-bottom: 0.15rem;
}

.check-phrase .latin {
  color: var(--muted-2);
  font-size: 0.82rem;
}

.check-hint {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted-2);
}

@media (max-width: 480px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .actions .btn { width: 100%; }
  .cta-block .actions .btn { width: 100%; }
}