/* AI Desk Labo — brand tokens, shared across every generated page */
:root {
  --bg-1: #23262f;
  --bg-2: #17181d;
  --bg-3: #121317;
  --ink-primary: #ffffff;
  --ink-secondary: #c3c2b7;
  --ink-muted: #898781;
  --accent-orange: #d95926;
  --accent-blue: #3987e5;
  --accent-green: #199e70;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-bg-hover: rgba(255, 255, 255, 0.055);
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;
  --max-width: 1040px;
  --header-h: 68px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --font-jp: "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", system-ui, sans-serif;
  --font-display: "Zen Kaku Gothic New", var(--font-jp);
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 12px 32px -12px rgba(0, 0, 0, 0.55);
  --shadow-card-hover: 0 1px 2px rgba(0, 0, 0, 0.35), 0 20px 44px -14px rgba(0, 0, 0, 0.65);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-jp);
  color: var(--ink-primary);
  background:
    radial-gradient(ellipse at top right, rgba(217, 89, 38, 0.10), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(57, 135, 229, 0.09), transparent 55%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 55%, var(--bg-3) 100%);
  background-attachment: fixed;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; height: auto; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-orange);
  margin: 0 0 10px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(18, 19, 23, 0.6);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(18, 19, 23, 0.86);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--ink-primary);
}
.brand:hover { text-decoration: none; opacity: 0.88; }
.brand .logo-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-blue));
  box-shadow: 0 4px 14px -4px rgba(217, 89, 38, 0.55);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink-primary);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.92rem;
  color: var(--ink-secondary);
}
.site-nav a { color: var(--ink-secondary); display: inline-flex; align-items: center; gap: 6px; }
.site-nav a:hover { color: var(--ink-primary); text-decoration: none; }
.site-nav a svg { width: 16px; height: 16px; opacity: 0.8; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 40px;
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
  pointer-events: none;
  animation: blobFloat 16s ease-in-out infinite;
}
.hero-blob.b1 { width: 360px; height: 360px; background: var(--accent-orange); top: -140px; right: -80px; }
.hero-blob.b2 { width: 320px; height: 320px; background: var(--accent-blue); bottom: -160px; left: -60px; animation-delay: -6s; }
.hero-blob.b3 { width: 220px; height: 220px; background: var(--accent-green); top: 40%; left: 55%; animation-delay: -11s; }
@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-24px, 18px) scale(1.08); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-blob { animation: none; }
}

.hero h1 {
  position: relative;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.6vw, 3.1rem);
  line-height: 1.28;
  margin: 0 0 16px;
  max-width: 18ch;
}
.hero p.lede {
  position: relative;
  color: var(--ink-secondary);
  max-width: 56ch;
  font-size: 1.05rem;
}

.stat-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 14px;
  margin: 32px 0 8px;
  max-width: 640px;
}
.stat-row .stat {
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat .num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.7rem;
  color: var(--ink-primary);
  display: block;
}
.stat .num::after { content: attr(data-suffix); font-size: 1rem; color: var(--accent-orange); margin-left: 2px; }
.stat .label { font-size: 0.78rem; color: var(--ink-muted); }

.chip-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 16px 8px 10px;
  font-size: 0.85rem;
  color: var(--ink-secondary);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}
.chip svg { width: 16px; height: 16px; }
.chip:hover { color: var(--ink-primary); border-color: var(--accent-orange); transform: translateY(-2px); text-decoration: none; }

/* ---------- Section rhythm ---------- */
main { padding-bottom: 72px; }
.section { padding: 52px 0; }
.section.tint { background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.018), transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { margin-bottom: 28px; }
.section-head h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin: 0; border: none; padding: 0; }
.section-link { text-align: right; margin-top: 4px; font-family: var(--font-display); font-weight: 700; }

article h1 { font-family: var(--font-display); font-weight: 900; font-size: clamp(1.7rem, 3.4vw, 2.3rem); line-height: 1.4; }
article h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 2.4em;
  padding-left: 14px;
  border-left: 4px solid var(--accent-orange);
}
article h3 { font-size: 1.08rem; color: var(--ink-secondary); }
.updated { color: var(--ink-muted); font-size: 0.85rem; }

/* Table of contents */
.toc {
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 22px 0 8px;
}
.toc .toc-title { font-family: var(--font-display); font-weight: 700; font-size: 0.9rem; color: var(--ink-secondary); margin-bottom: 10px; letter-spacing: 0.04em; }
.toc ol { margin: 0; padding-left: 1.2em; }
.toc li { margin: 6px 0; }
.toc a { color: var(--ink-primary); }

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Icon badge ---------- */
.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.icon-badge svg { width: 20px; height: 20px; stroke: #fff; }
.icon-badge.orange { background: linear-gradient(150deg, var(--accent-orange), #a83f16); }
.icon-badge.blue { background: linear-gradient(150deg, var(--accent-blue), #205fa8); }
.icon-badge.green { background: linear-gradient(150deg, var(--accent-green), #0f6b4d); }

/* ---------- Showcase carousel ---------- */
/* Base layer works with zero JS: a native horizontally-swipeable scroll-snap
   row. When GSAP + ScrollTrigger load successfully, site.js adds .js-driven
   to the outer element and pins the section, scrubbing the track's transform
   instead — if that script ever fails to load, this base layer is still a
   perfectly usable carousel, never a blank/broken section. */
.showcase-track-outer {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  margin-top: 24px;
}
.showcase-track-outer.js-driven { overflow: hidden; scroll-snap-type: none; }
.showcase-track {
  display: flex;
  gap: 18px;
  width: max-content;
  padding: 24px 4px 18px;
}
.showcase-card {
  position: relative;
  scroll-snap-align: start;
  width: min(78vw, 320px);
  flex-shrink: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
}
.showcase-card .rank {
  position: absolute;
  top: -14px;
  left: 18px;
  min-width: 46px;
  height: 32px;
  padding: 0 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-blue));
  border-radius: 10px;
  box-shadow: 0 6px 16px -6px rgba(217, 89, 38, 0.6);
}
.showcase-card h3 { font-family: var(--font-display); margin: 14px 0 6px; }
.showcase-card .price { color: var(--accent-orange); font-weight: 700; font-family: var(--font-display); }
.showcase-hint { font-size: 0.8rem; color: var(--ink-muted); margin-top: -8px; }

/* ---------- Cards / grid ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin: 24px 0;
}
.card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-strong);
  background: var(--card-bg-hover);
}
.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.card .badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  color: #fff;
}
.badge.orange { background: var(--accent-orange); }
.badge.blue { background: var(--accent-blue); }
.badge.green { background: var(--accent-green); }
.card h3 { margin: 6px 0; color: var(--ink-primary); font-family: var(--font-display); font-size: 1.05rem; }
.card .price { color: var(--accent-orange); font-weight: 700; font-family: var(--font-display); }
.card ul { margin: 10px 0; padding-left: 1.1em; font-size: 0.9rem; color: var(--ink-secondary); }
.card ul li { margin: 3px 0; }

.index-card h3 a { color: var(--ink-primary); }
.index-card p { color: var(--ink-secondary); font-size: 0.92rem; }

/* ---------- Comparison tables ---------- */
.table-wrap {
  overflow-x: auto;
  margin: 22px 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
}
table { width: 100%; border-collapse: collapse; min-width: 480px; }
th, td { padding: 12px 16px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.92rem; }
thead th {
  color: var(--ink-primary);
  font-family: var(--font-display);
  font-weight: 700;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
  border-bottom: 2px solid var(--accent-orange);
}
tbody tr { transition: background 0.2s var(--ease); }
tbody tr:hover { background: rgba(255, 255, 255, 0.035); }
tbody tr:last-child td { border-bottom: none; }

/* ---------- CTA button ---------- */
.btn-amazon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-orange);
  color: #fff;
  font-weight: 700;
  font-family: var(--font-display);
  padding: 11px 22px;
  border-radius: 999px;
  margin: 10px 0;
  box-shadow: 0 8px 22px -8px rgba(217, 89, 38, 0.6);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.btn-amazon:hover { transform: translateY(-2px); box-shadow: 0 12px 28px -8px rgba(217, 89, 38, 0.75); text-decoration: none; opacity: 1; }
.btn-amazon svg { width: 16px; height: 16px; }

.disclosure-note {
  font-size: 0.82rem;
  color: var(--ink-muted);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  margin: 22px 0;
}

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0 32px; color: var(--ink-muted); font-size: 0.85rem; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; margin-bottom: 24px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; color: var(--ink-secondary); }
.site-footer .links { display: flex; gap: 16px; flex-wrap: wrap; }
.site-footer .links a { color: var(--ink-muted); display: inline-flex; align-items: center; gap: 6px; }
.site-footer .links a:hover { color: var(--ink-primary); text-decoration: none; }
.site-footer .links svg { width: 15px; height: 15px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 18px; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: rgba(23, 24, 29, 0.85);
  backdrop-filter: blur(10px);
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  z-index: 30;
}
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.back-to-top svg { width: 18px; height: 18px; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    background: rgba(18, 19, 23, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 8px 20px 18px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  }
  .site-nav.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .site-nav a { padding: 10px 0; width: 100%; }
  .hero { padding: 40px 0 28px; }
  .footer-grid { gap: 20px; }
}