/* ==========================================================================
   Hokkaido Cake — stylesheet
   Japanese Minimal + Gold · single-page
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* palette */
  --paper: #fbfaf7;
  --paper-warm: #fdfcf8;
  --ink: #2a2620;
  --ink-soft: #4a463c;
  --ink-deep: #1a1712;
  --muted: #a09a8a;
  --line: #f0ece3;
  --gold: #c9a14a;
  --gold-deep: #8a6b2a;
  --gold-soft: #e6c989;

  /* type */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* spacing */
  --container: 1080px;
  --gutter: 24px;
  --gutter-lg: 40px;

  /* motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Reset + base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.04em;
}

p { margin: 0; }

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

/* --------------------------------------------------------------------------
   Nav
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: calc(100% * 1 / 2.1);
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px var(--gutter);
  background: transparent;
  transition: right 320ms var(--ease), background 280ms var(--ease), border-color 280ms var(--ease), box-shadow 280ms var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  right: 0;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.12);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.22em;
  color: var(--gold-deep);
  font-weight: 500;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.nav-links a {
  transition: color 180ms var(--ease);
  padding: 6px 2px;
}

.nav-links a:hover,
.nav-links a:focus-visible { color: var(--gold-deep); }

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
  cursor: pointer;
  gap: 4px;
  flex-direction: column;
}

.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 220ms var(--ease), opacity 220ms var(--ease);
}

@media (max-width: 900px) {
  .nav { right: 0; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav.is-open {
    background: var(--paper);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    border-bottom-color: transparent;
  }
  body.nav-open { overflow: hidden; }
  .nav.is-open .nav-links {
    display: flex;
    position: fixed;
    inset: 0;
    background: var(--paper);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    gap: 28px;
    z-index: 60;
  }
  .nav.is-open .nav-toggle { position: fixed; top: 20px; right: var(--gutter); z-index: 61; }
  .nav.is-open .nav-toggle span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .nav.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav-toggle span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
}

/* Focus ring (accessibility) */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */
.kicker {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.btn-solid {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 14px 28px;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  transition: background 220ms var(--ease), color 220ms var(--ease), border-color 220ms var(--ease);
}

.btn-solid:hover,
.btn-solid:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--paper);
}

.btn-ghost {
  display: inline-block;
  border: 1px solid var(--gold);
  color: var(--gold-deep);
  padding: 12px 24px;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  transition: background 220ms var(--ease), color 220ms var(--ease);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--gold);
  color: var(--paper);
}

.btn-link {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 12px 6px;
  transition: color 180ms var(--ease);
}

.btn-link:hover,
.btn-link:focus-visible { color: var(--gold-deep); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  min-height: min(90vh, 720px);
  background: var(--paper);
}

.hero-content {
  padding: 140px var(--gutter-lg) 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 560px;
  margin-left: auto;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(44px, 6vw, 64px);
  letter-spacing: 0.18em;
  color: var(--ink);
  font-weight: 500;
  line-height: 1;
  margin: 18px 0 0;
}

.hero-tag {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 25px);
  color: var(--ink-soft);
  line-height: 1.45;
  max-width: 420px;
  margin: 22px 0 0;
  letter-spacing: 0.02em;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.hero-photo {
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #e8dec9 0%, #b8997a 100%);
}

.hero-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero-photo {
    aspect-ratio: 4 / 5;
    order: -1;
  }
  .hero-content {
    padding: 56px var(--gutter) 64px;
    max-width: 100%;
    margin-left: 0;
  }
  .hero-content .kicker { margin-top: 0; }
}

/* --------------------------------------------------------------------------
   Section primitives
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
}

.section.section-alt { background: var(--paper-warm); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section-head { margin-bottom: 48px; max-width: 720px; }

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.2vw, 44px);
  letter-spacing: 0.06em;
  color: var(--ink);
  font-weight: 500;
  margin: 10px 0 0;
  line-height: 1.2;
}

.section-lede {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--ink-soft);
  margin-top: 22px;
  max-width: 620px;
  line-height: 1.55;
}

.gold-rule {
  width: 32px;
  height: 1px;
  background: var(--gold);
  margin: 18px 0 0;
}

.section-footer {
  margin-top: 44px;
  text-align: center;
}

@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .section-head { margin-bottom: 36px; }
}

/* --------------------------------------------------------------------------
   Cake grid
   -------------------------------------------------------------------------- */
.cake-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cake-cell {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: var(--line);
  aspect-ratio: 1;
}

.cake-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 480ms var(--ease);
}

.cake-cell:hover img,
.cake-cell:focus-within img {
  transform: scale(1.04);
}

.cake-cell figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--paper);
  background: linear-gradient(to top, rgba(26, 23, 18, 0.78), transparent);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 280ms var(--ease), transform 280ms var(--ease);
}

.cake-cell:hover figcaption,
.cake-cell:focus-within figcaption {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .cake-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 560px) {
  .cake-grid { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   Menu
   -------------------------------------------------------------------------- */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.menu-cell {
  margin: 0;
  text-align: center;
}

.menu-photo {
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 20px;
  background: var(--line);
  transition: transform 320ms var(--ease), box-shadow 320ms var(--ease);
}

.menu-cell:hover .menu-photo {
  transform: translateY(-4px);
  box-shadow: 0 24px 40px -20px rgba(26, 23, 18, 0.25);
}

.menu-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.menu-name {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--ink);
  font-weight: 500;
}

.section-note {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--ink-soft);
  font-size: 15px;
  margin-right: 14px;
}

@media (max-width: 900px) {
  .menu-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-photo {
  aspect-ratio: 4 / 3;
  border-radius: 4px;
  overflow: hidden;
  background: var(--line);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

.about-prose {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 500px;
}

.about-prose p + p { margin-top: 20px; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-prose { max-width: 100%; }
}

/* --------------------------------------------------------------------------
   Visit
   -------------------------------------------------------------------------- */
.visit-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

.visit-map {
  aspect-ratio: 16 / 10;
  border-radius: 4px;
  overflow: hidden;
  background: var(--line);
  min-width: 0;
}

.visit-map iframe {
  width: 100%;
  height: 100%;
  display: block;
  filter: saturate(0.85);
}

.visit-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 12px 0;
}

.visit-block .kicker { margin-bottom: 10px; }

.visit-value {
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--ink);
  line-height: 1.6;
  margin-bottom: 12px;
}

.hours-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  max-width: 320px;
}

.hours-row + .hours-row { margin-top: 6px; }

.hours-closed { color: var(--muted); font-style: italic; }

@media (max-width: 900px) {
  .visit-grid { grid-template-columns: 1fr; gap: 36px; }
  .hours-row { max-width: 100%; }
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.contact-card {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 32px 24px;
  text-align: center;
  background: var(--paper-warm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.contact-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.contact-value {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--ink);
  letter-spacing: 0.02em;
  transition: color 220ms var(--ease);
}

.contact-value:hover,
.contact-value:focus-visible { color: var(--gold-deep); }

.contact-qr {
  width: 140px;
  height: 140px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  padding: 6px;
}

.contact-hint {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-hint span { color: var(--ink-soft); }

@media (max-width: 720px) {
  .contact-row { grid-template-columns: 1fr; gap: 14px; }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--ink-deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 72px 0 36px;
  margin-top: 0;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.75;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: flex-start;
}

.footer-word {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.22em;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 8px;
}

.footer-tag {
  font-family: var(--font-display);
  font-style: italic;
  color: rgba(255, 255, 255, 0.55);
  font-size: 15px;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.footer-columns .kicker { color: var(--gold-soft); margin-bottom: 8px; }

.footer-columns a { transition: color 180ms var(--ease); }
.footer-columns a:hover,
.footer-columns a:focus-visible { color: var(--gold-soft); }

.footer-rule {
  max-width: var(--container);
  margin: 56px auto 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
}

.footer-copy {
  text-align: center;
  margin-top: 28px;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .footer-columns { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   A11y
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 12px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 2px;
  z-index: 100;
  transition: top 220ms var(--ease);
}

.skip-link:focus {
  top: 12px;
}

.cake-cell img, .menu-photo img { user-select: none; }