/* ===================================================================
   Yakitoriya.com — static brand/domain landing page
   No build step required. Pure HTML + CSS + vanilla JS.
=================================================================== */

:root {
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --bg: #f6ede1;
  --bg-alt: #efe1cd;
  --card-bg: #fffaf2;
  --ink: #241c16;
  --ink-soft: #55483d;
  --line: rgba(36, 28, 22, 0.12);
  --accent: #8a2f1f;
  --accent-strong: #6d2116;
  --ember: #c9702f;
  --gold: #b48b4a;

  --radius-lg: 22px;
  --radius-md: 14px;
  --shadow-soft: 0 20px 45px -25px rgba(36, 20, 10, 0.35);
  --shadow-card: 0 10px 30px -18px rgba(36, 20, 10, 0.28);

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #191410;
  --bg-alt: #14100d;
  --card-bg: #221a15;
  --ink: #f3e9dc;
  --ink-soft: #cbb9a4;
  --line: rgba(243, 233, 220, 0.12);
  --accent: #e08a5c;
  --accent-strong: #f0a878;
  --ember: #e08a5c;
  --gold: #d8b475;
  --shadow-soft: 0 25px 60px -30px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 14px 34px -20px rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

a { color: inherit; }

.wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 8px 0;
  z-index: 999;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow-card);
}

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; }
.brand-domain { font-size: 0.68rem; letter-spacing: 0.14em; color: var(--ink-soft); }

.header-nav { display: flex; align-items: center; gap: 22px; }
.header-nav > a:not(.btn) {
  font-size: 0.92rem;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.2s ease;
}
.header-nav > a:not(.btn):hover { color: var(--accent); }

@media (max-width: 640px) {
  .header-nav a:not(.btn-ghost):not(.icon-btn) { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--accent);
  color: #fff9f2;
  box-shadow: var(--shadow-card);
}
.btn-primary:hover { background: var(--accent-strong); }

.btn-secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-ghost {
  padding: 9px 18px;
  background: transparent;
  border: 1px solid var(--line);
  font-size: 0.85rem;
}

.btn-block { width: 100%; }

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: none; }
:root[data-theme="dark"] .icon-moon { display: block; }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 40px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 7px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.eyebrow-dark { color: var(--gold); background: rgba(180,139,74,0.14); }

.hero-sub { display: block; color: var(--ink-soft); font-size: 0.62em; margin-top: 6px; }

.lede { font-size: 1.08rem; max-width: 46ch; }

.kanji-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 22px 0 30px;
  padding: 16px 20px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.kanji { font-family: var(--font-display); font-size: 1.6rem; color: var(--accent); }
.kanji-gloss { font-size: 0.88rem; color: var(--ink-soft); }

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Logo cards ---------- */
.logo-card {
  margin: 0;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-soft);
  position: relative;
}
.logo-card img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
  margin-top: 14px;
  background: #fff;
}
.logo-card figcaption {
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.logo-card figcaption strong { color: var(--ink); }

.pill {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.pill-light {
  background: color-mix(in srgb, var(--gold) 20%, transparent);
  color: var(--ink);
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 60ch; margin-bottom: 42px; }
.section-head p { font-size: 1.02rem; }

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 860px) { .card-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.card-index {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--gold);
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}
.card p:last-child { margin-bottom: 0; }

/* Positioning */
.positioning-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 860px) { .positioning-grid { grid-template-columns: 1fr; } }

.positioning-text {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  color: var(--ink);
  line-height: 1.45;
}

.uses-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
}
.uses-list { margin: 0; padding: 0; list-style: none; }
.uses-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  color: var(--ink-soft);
  font-size: 0.96rem;
}
.uses-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}
.uses-list li:last-child { margin-bottom: 0; }

/* Logo showcase */
.logo-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}
@media (max-width: 860px) { .logo-showcase { grid-template-columns: 1fr; } }

.material-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 700px) { .material-grid { grid-template-columns: 1fr; } }

/* Contact */
.section-contact { background: var(--bg-alt); }
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }

.fine-print { font-size: 0.85rem; opacity: 0.85; }

.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-soft);
  text-align: center;
}
.contact-label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.contact-card .btn { margin-bottom: 12px; }
.contact-card .btn:last-of-type { margin-bottom: 0; }
.copy-confirm {
  min-height: 1.2em;
  font-size: 0.85rem;
  color: var(--accent);
  margin: 10px 0 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
}
.footer-inner p { margin: 0; font-size: 0.85rem; }
.footer-note { color: var(--ink-soft); opacity: 0.8; margin-top: 4px !important; }

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--delay, 0ms);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .card, .btn { transition: none !important; transform: none !important; opacity: 1 !important; }
}