/* =========================================================
   Joto Sushi — stylesheet
   Minimalist, elegant Japanese restaurant aesthetic: dark,
   calm, generous negative space, understated sakura accents.
   ========================================================= */

:root {
  --color-bg: #131110;
  --color-bg-alt: #171514;
  --color-surface: #1a1817;
  --color-border: rgba(242, 237, 230, 0.08);
  --color-text: #f2ede6;
  --color-text-muted: #a39a92;
  --color-accent: #c98a90;
  --color-accent-soft: #b97078;
  --font-heading: "Yu Mincho", "Hiragino Mincho ProN", Georgia, "Times New Roman", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1080px;
  --radius: 2px;
  --transition-fast: 200ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

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

a {
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Typography ---------- */

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

h1 { font-size: clamp(2.25rem, 5.5vw, 3.75rem); font-weight: 500; letter-spacing: 0.01em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 500; }
h3 { font-size: 1.1rem; font-weight: 500; }

p { margin: 0 0 1rem; color: var(--color-text-muted); }

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-heading {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.ornament {
  display: block;
  width: 28px;
  height: 28px;
  margin: 0 auto 1.25rem;
  opacity: 0.8;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background-color: var(--color-accent);
  color: #1c1414;
}
.btn-primary:hover { background-color: #d59aa0; }

.btn-outline {
  background-color: transparent;
  border-color: rgba(242, 237, 230, 0.3);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---------- Header / Nav ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(19, 17, 16, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text);
  letter-spacing: 0.03em;
}

.brand-mark {
  color: var(--color-accent);
  font-size: 1.1rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background-color: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
}

.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background-color: var(--color-accent);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.2rem;
}

.lang-switch button {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-switch button.is-active {
  background-color: var(--color-accent);
  color: #fff;
}

.lang-switch button:not(.is-active):hover {
  color: var(--color-text);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding-block: 7.5rem 6.5rem;
  text-align: center;
  background-color: var(--color-bg);
  overflow: hidden;
}

.hero-branch {
  position: absolute;
  top: -1.5rem;
  right: -2rem;
  width: 220px;
  height: auto;
  opacity: 0.9;
  pointer-events: none;
}

.hero-branch--left {
  top: auto;
  right: auto;
  bottom: -2rem;
  left: -2.5rem;
  width: 190px;
  transform: scaleX(-1) rotate(8deg);
}

.hero-content {
  position: relative;
  max-width: 600px;
  margin-inline: auto;
  animation: fade-up 800ms ease both;
}

.hero-content .eyebrow { display: block; }

.hero-content h1 {
  margin-bottom: 1.25rem;
}

.hero-divider {
  width: 34px;
  height: 34px;
  margin: 0 auto 1.5rem;
  opacity: 0.85;
}

.hero-content p {
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Sections ---------- */

section {
  padding-block: 5.5rem;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.about-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.about-blossom {
  position: absolute;
  top: -3rem;
  left: -2.5rem;
  width: 130px;
  height: auto;
  opacity: 0.85;
  pointer-events: none;
}

.about-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.location-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.info-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.info-card + .info-card { margin-top: 1.5rem; }

.info-card h3 {
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.info-card address {
  font-style: normal;
}

.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.map-placeholder {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem;
  font-size: 0.9rem;
}

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

.hours-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.6rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.hours-list li:last-child { border-bottom: none; }

.hours-list .day { color: var(--color-text); }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
  padding-block: 3rem 2rem;
}

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

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-col h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-soft);
  margin-bottom: 0.6rem;
}

.footer-col p {
  font-size: 0.9rem;
  margin: 0;
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
}

/* ---------- Menu page ---------- */

.menu-header {
  text-align: center;
  padding-block: 3.5rem 1rem;
}

.menu-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-accent-soft);
  border: 1px dashed rgba(201, 138, 144, 0.4);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.menu-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.menu-image-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.menu-image-card:hover,
.menu-image-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--color-accent-soft);
  outline: none;
}

.menu-image-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.menu-back {
  text-align: center;
  margin-top: 3rem;
}

.menu-back a {
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.menu-back a:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

.menu-cta {
  text-align: center;
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background-color: rgba(10, 10, 10, 0.92);
  z-index: 1000;
  padding: 2rem;
}

.lightbox.is-open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: min(90vw, 800px);
  max-height: 90vh;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.lightbox-close:hover {
  background-color: rgba(245, 242, 234, 0.1);
}

/* ---------- Responsive ---------- */

@media (min-width: 700px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

  .location-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1.5rem;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }

  .nav-menu.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    gap: 1.1rem;
  }

  .lang-switch {
    align-self: flex-start;
  }
}

@media (max-width: 600px) {
  .hero-branch {
    width: 130px;
  }

  .hero-branch--left {
    width: 110px;
  }

  .about-blossom {
    width: 84px;
    top: -1.75rem;
    left: -0.75rem;
    opacity: 0.6;
  }
}

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