/* =====================================================================
   YAKUBAMAE.COM — Stylesheet
   Brand colors: #c7a17a (gold), #30271c (dark brown), #ebe7de (cream)
   ===================================================================== */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --color-gold:       #c7a17a;
  --color-gold-dark:  #a07848;
  --color-brown:      #30271c;
  --color-brown-mid:  #4a3728;
  --color-cream:      #ebe7de;
  --color-cream-dark: #d9d2c5;
  --color-white:      #ffffff;
  --color-text:       #2a2017;
  --color-text-muted: #6b5c4a;

  --font-serif: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-sans:  'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-title: 'Oswald', var(--font-sans);

  --radius:    6px;
  --radius-lg: 14px;
  --shadow:    0 4px 24px rgba(48, 39, 28, 0.10);
  --shadow-lg: 0 12px 48px rgba(48, 39, 28, 0.18);
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);

  --header-h: 116px;
  --container: 1120px;
  --section-py: 96px;
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.75;
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  width: min(var(--container), 100% - 2 * clamp(1.25rem, 5vw, 3rem));
  margin-inline: auto;
}

.section { padding-block: var(--section-py); }
.section-alt { background: var(--color-cream); }

.section-label {
  display: block;
  font-family: var(--font-title);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  margin-bottom: 0.6rem;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--color-brown);
  line-height: 1.3;
  margin-bottom: 1.5rem;
}

.section-subheading {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: -0.75rem;
  margin-bottom: 3rem;
  letter-spacing: 0.04em;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 2px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-gold);
  color: var(--color-brown);
}
.btn-primary:hover {
  background: var(--color-gold-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-gold);
  border: 1.5px solid var(--color-gold);
}
.btn-outline:hover {
  background: var(--color-gold);
  color: var(--color-brown);
}

/* ── Header ────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(107, 79, 58, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(199, 161, 122, 0.18);
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  background: #6b4f3a;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.logo-img {
  height: 96px;
  width: auto;
  object-fit: contain;
}

/* Hide logo img if src is empty */
.logo-img:not([src]),
.logo-img[src=""] {
  display: none;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* Nav */
.nav-list {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.nav-list a {
  display: block;
  padding: 0.45rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-cream);
  border-radius: 2px;
  letter-spacing: 0.04em;
  transition: color var(--transition), background var(--transition);
}

.nav-list a:hover {
  color: var(--color-gold);
  background: rgba(199, 161, 122, 0.1);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-cream);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ──────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-color: var(--color-brown);
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
  transform: scale(1.04);
  transition: transform 8s ease-out;
  will-change: transform;
}

#hero.loaded .hero-bg { transform: scale(1); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(48, 39, 28, 0.75) 0%,
    rgba(48, 39, 28, 0.45) 60%,
    rgba(48, 39, 28, 0.25) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding-block: 5rem;
  animation: fadeUp 1s ease both;
}

.hero-label {
  font-family: var(--font-title);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.25rem;
}

.hero-heading {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.18;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 16px rgba(0,0,0,0.4);
}

.hero-body {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: rgba(235, 231, 222, 0.9);
  margin-bottom: 2.5rem;
  max-width: 520px;
  line-height: 1.85;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, var(--color-gold));
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ── About ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.about-text { order: 1; }

.about-body p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 1rem;
  font-size: 0.97rem;
}

.about-body p:last-child { margin-bottom: 0; }

.about-image-wrap {
  order: 2;
  position: relative;
}

.about-img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: var(--color-cream-dark);
}

/* Placeholder style when image is missing */
.about-img:not([src]),
.about-img[src=""] {
  min-height: 400px;
  background: var(--color-cream-dark);
}

.about-badge {
  position: absolute;
  top: -1.25rem;
  right: -1.25rem;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-brown);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.78rem;
  line-height: 1.3;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  z-index: 1;
  padding: 0.5rem;
}

.about-badge:empty { display: none; }

/* ── Menu / Products ───────────────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: 2rem;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.product-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-cream-dark);
  flex-shrink: 0;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-img { transform: scale(1.05); }

/* Placeholder for missing product images */
.product-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cream-dark);
  color: var(--color-text-muted);
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.product-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background: var(--color-gold);
  color: var(--color-brown);
  font-family: var(--font-title);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.7rem;
  border-radius: 2px;
  line-height: 1;
}

.product-body {
  padding: 1.4rem 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-name {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-brown);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 1.25rem;
}

.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  margin-top: auto;
}

.product-price {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-gold-dark);
  line-height: 1;
}

.product-price-note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.product-currency {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-left: 2px;
}

.menu-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 1rem 1.5rem;
  border: 1px dashed var(--color-cream-dark);
  border-radius: var(--radius);
  background: var(--color-white);
  max-width: 600px;
  margin-inline: auto;
}

/* ── Contact ───────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.contact-subheading {
  font-size: 0.97rem;
  color: var(--color-text-muted);
  margin-top: -0.75rem;
  margin-bottom: 1rem;
}

.contact-note {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  padding: 1rem 1.25rem;
  background: var(--color-cream);
  border-left: 3px solid var(--color-gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 1rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  background: var(--color-cream);
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
  border: 1px solid transparent;
}

.contact-method:hover {
  background: var(--color-cream-dark);
  transform: translateX(4px);
  border-color: var(--color-gold);
}

.contact-method-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-gold);
  color: var(--color-brown);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-method-info { flex: 1; }

.contact-method-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 0.15rem;
}

.contact-method-value {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-brown);
}

.hours-heading {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-brown);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--color-cream-dark);
}

.hours-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.hours-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
}

.hours-day {
  font-weight: 600;
  color: var(--color-brown);
  flex-shrink: 0;
}

.hours-time {
  color: var(--color-text-muted);
  text-align: right;
}

/* ── Footer ────────────────────────────────────────────────── */
#site-footer {
  background: #6b4f3a;
  padding-block: 2.5rem;
  border-top: 1px solid rgba(199, 161, 122, 0.2);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: 0.82rem;
  color: rgba(235, 231, 222, 0.55);
  letter-spacing: 0.04em;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(235, 231, 222, 0.65);
  transition: color var(--transition);
  letter-spacing: 0.04em;
}

.footer-links a:hover { color: var(--color-gold); }

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50%       { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
}

/* Intersection observer reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Responsive — Tablet ───────────────────────────────────── */
@media (max-width: 900px) {
  :root { --section-py: 72px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .about-text  { order: 2; }
  .about-image-wrap { order: 1; }
  .about-img { aspect-ratio: 16/9; }
  .about-badge { top: -1rem; right: -0.5rem; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* ── Responsive — Mobile ───────────────────────────────────── */
@media (max-width: 640px) {
  :root {
    --header-h: 92px;
    --section-py: 56px;
  }

  .logo-img {
    height: 72px;
  }

  /* Mobile nav */
  .nav-toggle { display: flex; }

  #main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #6b4f3a;
    padding: 1.5rem 1.5rem 2rem;
    transform: translateY(-110%);
    transition: transform var(--transition);
    border-bottom: 1px solid rgba(199, 161, 122, 0.2);
    z-index: 99;
  }

  #main-nav.open { transform: translateY(0); }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .nav-list a {
    font-size: 1rem;
    padding: 0.75rem 0.5rem;
    width: 100%;
  }

  .about-badge {
    width: 72px;
    height: 72px;
    font-size: 0.72rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }
}

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

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 2px;
}