/* ============================================================
   KŌYA — Omakase · Kyoto
   Shippori Mincho + DM Sans · Lacquer · Amber flame
   ============================================================ */

:root {
  --lacquer: #0a0908;
  --warm: #141110;
  --warm-mid: #1e1a17;
  --amber: #c9873e;
  --amber-light: #e8a855;
  --amber-dim: rgba(201, 135, 62, 0.25);
  --rice: #f5f0e8;
  --rice-muted: rgba(245, 240, 232, 0.62);
  --rice-faint: rgba(245, 240, 232, 0.38);
  --border: rgba(245, 240, 232, 0.08);
  --border-strong: rgba(245, 240, 232, 0.14);
  --font-display: "Shippori Mincho", "Zen Old Mincho", Georgia, serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --container: 1140px;
  --nav-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  background: var(--lacquer);
  color: var(--rice);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  max-width: 100%;
}

::selection { background: rgba(201, 135, 62, 0.35); }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }

/* ── ATMOSPHERE ── */
.steam-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 70% at 50% 45%, transparent 30%, rgba(10, 9, 8, 0.65) 100%);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 500;
  transform-origin: left;
  transform: scaleX(0);
  pointer-events: none;
  background: linear-gradient(90deg, var(--amber), var(--amber-light));
}

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  height: var(--nav-h);
  transition: background 0.45s var(--ease), border-color 0.45s;
}

.nav.scrolled {
  background: rgba(10, 9, 8, 0.88);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.logo-jp {
  font-size: 0.85rem;
  color: var(--rice-faint);
  margin-left: 6px;
  font-weight: 400;
}

.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--rice-muted);
  transition: color 0.25s;
}

.nav-links a:hover { color: var(--amber-light); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 1px;
  background: var(--rice);
}

.nav-toggle span:first-child { top: 15px; }
.nav-toggle span:last-child { top: 23px; }

.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--lacquer);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px 28px;
  flex-direction: column;
  gap: 16px;
  z-index: 290;
}

.nav-mobile.open { display: flex; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, box-shadow 0.25s;
}

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

.btn-amber {
  background: var(--amber);
  color: var(--lacquer);
  border-color: var(--amber);
}

.btn-amber:hover {
  background: var(--amber-light);
  box-shadow: 0 8px 32px var(--amber-dim);
}

.btn-ghost {
  background: transparent;
  color: var(--rice-muted);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber-light);
}

.btn-sm { padding: 10px 18px; font-size: 11px; }
.btn-full { width: 100%; }

/* ── TYPE ── */
.kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}

.body {
  font-size: 1rem;
  color: var(--rice-muted);
  line-height: 1.75;
  max-width: 42ch;
}

.body.center { text-align: center; margin-left: auto; margin-right: auto; }
.body.wide { max-width: 58ch; }

.section {
  position: relative;
  z-index: 2;
  padding: 96px 24px;
}

.section-head {
  max-width: 620px;
  margin: 0 auto 56px;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── HERO ── */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  padding: calc(var(--nav-h) + 56px) 24px 48px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  max-width: calc(var(--container) + 48px);
  margin: 0 auto;
  align-items: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 6vw, 4.25rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero-title em {
  font-style: italic;
  color: var(--amber-light);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--rice-muted);
  line-height: 1.7;
  max-width: 40ch;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.hero-facts dt {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rice-faint);
  margin-bottom: 4px;
}

.hero-facts dd {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--amber-light);
}

.hero-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rice-faint);
}

.media-slot--hero .media-slot__frame {
  border-color: var(--border-strong);
  background: var(--warm-mid);
}

/* ── MARQUEE ── */
.marquee-band {
  position: relative;
  z-index: 2;
  border-block: 1px solid var(--border);
  padding: 12px 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 40s linear infinite;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rice-faint);
  white-space: nowrap;
}

.marquee-track span { padding-right: 48px; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── MENU / COURSES ── */
.menu {
  position: relative;
  z-index: 2;
  background: var(--warm);
  overflow: visible;
}

.menu-pin {
  position: relative;
  /* height set by JS: courses × 100vh */
}

.menu-sticky {
  position: sticky;
  top: var(--nav-h);
  height: calc(100vh - var(--nav-h));
  box-sizing: border-box;
  padding: 20px 24px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--warm);
  z-index: 5;
  overflow: hidden;
}

.menu-rail {
  width: 100%;
  max-width: var(--container);
  height: 100%;
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 40px;
  align-items: center;
}

.menu-rail-head {
  align-self: center;
}

.menu-rail-head .h2 {
  font-size: clamp(1.65rem, 3vw, 2.1rem);
}

.menu-progress-wrap {
  margin-top: 24px;
}

.menu-progress {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 10px;
}

.menu-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber), var(--amber-light));
  transition: width 0.12s linear;
}

.menu-readout {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}

.course-dots {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}

.course-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.course-dot:hover { transform: scale(1.2); }

.course-dot.is-active {
  background: var(--amber);
  border-color: var(--amber);
  box-shadow: 0 0 12px var(--amber-dim);
}

.menu-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  height: 100%;
  min-height: 0;
  align-items: center;
}

.course-slides {
  position: relative;
  height: 100%;
  min-height: 280px;
  max-height: min(520px, calc(100vh - var(--nav-h) - 80px));
}

.course-slides--copy {
  min-height: 240px;
}

.course-slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
  pointer-events: none;
}

.course-slide.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.course-slide .course-num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 500;
  line-height: 1;
  color: var(--amber-dim);
  display: block;
  margin-bottom: 4px;
}

.course-slide .course-jp {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--rice-faint);
  display: block;
  margin-bottom: 8px;
}

.course-slide .course-name {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.course-slide .course-desc {
  font-size: 0.95rem;
  color: var(--rice-muted);
  line-height: 1.7;
  max-width: 38ch;
  margin-bottom: 14px;
}

.course-slide .course-pairing {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
}

.course-slides--media .course-slide {
  justify-content: stretch;
}

.course-slides--media .media-slot__frame {
  height: 100%;
  min-height: 0;
}

.course-display {
  min-height: 280px;
}

/* ── COUNTER ── */
.counter { background: var(--lacquer); }

.counter-split {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.counter-list {
  list-style: none;
  margin-top: 24px;
}

.counter-list li {
  font-size: 14px;
  color: var(--rice-muted);
  padding: 10px 0;
  padding-left: 18px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.counter-list li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--amber);
}

/* ── CHEF ── */
.chef {
  background: var(--warm);
  padding-bottom: 0;
}

.chef-inner {
  max-width: 680px;
  margin: 0 auto 48px;
  text-align: center;
}

.chef-quote {
  margin-top: 32px;
  padding: 28px 32px;
  border-left: 2px solid var(--amber);
  text-align: left;
}

.chef-quote p {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  line-height: 1.65;
  color: var(--rice-muted);
}

.media-slot--chef {
  max-width: var(--container);
  margin: 0 auto;
}

.media-slot--chef .media-slot__frame {
  border-radius: 20px 20px 0 0;
  border-bottom: none;
}

/* ── SEASON ── */
.season { background: var(--lacquer); }

.season-grid {
  max-width: var(--container);
  margin: 0 auto 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.season-card {
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--warm-mid);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s, transform 0.3s var(--ease);
}

.season-card:hover { transform: translateY(-3px); }

.season-card.is-active {
  border-color: var(--amber);
  background: rgba(201, 135, 62, 0.08);
  box-shadow: 0 0 32px var(--amber-dim);
}

.season-kanji {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--amber-dim);
  display: block;
  margin-bottom: 8px;
}

.season-card.is-active .season-kanji { color: var(--amber-light); }

.season-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.season-card p {
  font-size: 13px;
  color: var(--rice-muted);
  line-height: 1.6;
}

.season-note {
  text-align: center;
  font-size: 14px;
  color: var(--rice-faint);
}

.season-note strong { color: var(--amber-light); }

/* ── VOICES ── */
.voices {
  background: var(--warm);
  padding: 80px 24px;
}

.voices-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.voices-grid blockquote {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(10, 9, 8, 0.4);
}

.voices-grid p {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--rice-muted);
  margin-bottom: 14px;
}

.voices-grid footer {
  font-size: 12px;
  color: var(--rice-faint);
}

/* ── RESERVE ── */
.reserve { background: var(--lacquer); }

.reserve-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.reserve-meta {
  margin-top: 20px;
  font-size: 13px;
  color: var(--rice-faint);
  letter-spacing: 0.04em;
}

.reserve-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 32px;
  background: var(--warm-mid);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.reserve-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rice-faint);
}

.reserve-form label.full { grid-column: 1 / -1; }

.reserve-form input,
.reserve-form select,
.reserve-form textarea {
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--lacquer);
  font-size: 14px;
  color: var(--rice);
}

.reserve-form input:focus,
.reserve-form select:focus,
.reserve-form textarea:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px var(--amber-dim);
}

.reserve-form button { grid-column: 1 / -1; margin-top: 8px; }

/* ── MEDIA SLOTS ── */
.media-slot__frame {
  position: relative;
  min-height: 260px;
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  background: var(--warm-mid);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}

.media-slot__frame--square { aspect-ratio: 1; min-height: auto; }
.media-slot__frame--wide { aspect-ratio: 4/3; min-height: auto; }
.media-slot__frame--tall { aspect-ratio: 4/5; min-height: auto; }
.media-slot__frame--cinema { aspect-ratio: 16/9; min-height: auto; }

.media-slot__frame:has(.media-slot__img:not([hidden])) {
  padding: 0;
  border-style: solid;
}

.media-slot__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}

.media-slot__img:not([hidden]) ~ .media-slot__badge,
.media-slot__img:not([hidden]) ~ .media-slot__title,
.media-slot__img:not([hidden]) ~ .media-slot__copy,
.media-slot__img:not([hidden]) ~ .media-slot__prompt {
  display: none;
}

.media-slot__badge {
  align-self: flex-start;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-dim);
  padding: 4px 10px;
  border-radius: 999px;
}

.media-slot__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.media-slot__copy {
  align-self: flex-start;
  margin-top: auto;
  padding: 8px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(10, 9, 8, 0.6);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.media-slot__copy:hover { border-color: var(--amber); }
.media-slot__copy.copied { background: var(--amber); color: var(--lacquer); }

.media-slot__prompt {
  width: 100%;
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(10, 9, 8, 0.5);
  font-size: 10px;
  line-height: 1.5;
  color: var(--rice-faint);
  resize: vertical;
  min-height: 64px;
}

/* ── FOOTER ── */
.footer {
  position: relative;
  z-index: 2;
  padding: 48px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner .logo {
  display: block;
  margin-bottom: 8px;
}

.footer-inner p {
  font-size: 13px;
  color: var(--rice-faint);
}

.footer-copy {
  margin-top: 16px;
  font-size: 11px !important;
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 600;
  padding: 14px 24px;
  background: var(--amber);
  color: var(--lacquer);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 12px 40px var(--amber-dim);
  transition: transform 0.5s var(--ease-spring);
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .menu-pin { height: auto !important; }
  .menu-sticky {
    position: relative;
    top: auto;
    height: auto;
    overflow: visible;
    padding: calc(var(--nav-h) + 16px) 24px 48px;
  }
  .menu-rail {
    grid-template-columns: 1fr;
    height: auto;
  }
  .menu-stage { display: none; }
  .menu-progress-wrap,
  .course-dots { display: none; }
  .mobile-course-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 32px;
  }
  .mobile-course {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--warm-mid);
  }
  .mobile-course-num {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--amber);
    display: block;
    margin-bottom: 8px;
  }
  .mobile-course h4 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    margin-bottom: 10px;
  }
  .mobile-course p {
    font-size: 14px;
    color: var(--rice-muted);
    line-height: 1.65;
    margin-bottom: 8px;
  }
  .mobile-course-pairing {
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--amber);
  }
  .counter-split,
  .reserve-inner { grid-template-columns: 1fr; }
  .season-grid { grid-template-columns: repeat(2, 1fr); }
}

.mobile-course-list { display: none; }

@media (max-width: 768px) {
  .nav-links, .nav-inner > .btn { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .hero-facts { grid-template-columns: repeat(2, 1fr); }
  .season-grid,
  .voices-grid { grid-template-columns: 1fr; }
  .reserve-form { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .reveal { transition: opacity 0.4s; transform: none; }
}