/* ========================================
   KOMEHANA - Style Sheet
   Design inspired by Natural Herbs JP
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  --color-bg: #faf8f5;
  --color-bg-warm: #f5f0ea;
  --color-bg-cream: #efe9e0;
  --color-text: #3a3530;
  --color-text-light: #6b6259;
  --color-text-muted: #9a8e82;
  --color-accent: #b8a88a;
  --color-accent-dark: #8a7e6b;
  --color-accent-light: #d4c5a9;
  --color-border: #e0d8cc;
  --color-white: #ffffff;

  --font-serif: 'Noto Serif JP', 'YuMincho', 'Yu Mincho', serif;
  --font-sans: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-display: 'Cormorant Garamond', var(--font-serif);

  --header-height: 80px;
  --container-width: 1100px;
  --section-padding: 120px;

  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.9;
  letter-spacing: 0.04em;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.3s var(--ease-out);
}

a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 30px;
}

/* ---------- HEADER ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease-out), background-color 0.4s var(--ease-out);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 30px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  line-height: 1.2;
}

.logo:hover {
  opacity: 1;
}

.logo-en {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-text);
}

.logo-jp {
  font-family: var(--font-serif);
  font-size: 0.65rem;
  font-weight: 200;
  letter-spacing: 0.3em;
  color: var(--color-text-muted);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list a {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--color-text-light);
  position: relative;
  padding: 4px 0;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.3s var(--ease-out);
}

.nav-list a:hover {
  opacity: 1;
  color: var(--color-text);
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--color-text);
  color: var(--color-bg) !important;
  padding: 10px 24px !important;
  font-size: 0.72rem !important;
  letter-spacing: 0.12em !important;
  transition: background-color 0.3s var(--ease-out) !important;
}

.nav-cta:hover {
  background-color: var(--color-accent-dark) !important;
  opacity: 1 !important;
}

.nav-cta::after {
  display: none !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1010;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--color-text);
  transition: all 0.3s var(--ease-out);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('images/hero.JPG') center/cover no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(255, 253, 248, 0.4) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(200, 184, 154, 0.3) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(58, 53, 48, 0.15);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  padding: 0 30px;
}

.hero-sub {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out) 0.3s forwards;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: 2.8rem;
  line-height: 2;
  letter-spacing: 0.2em;
  margin-bottom: 30px;
}

.hero-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
}

.hero-line:nth-child(1) {
  animation: fadeUp 1s var(--ease-out) 0.6s forwards;
}

.hero-line:nth-child(2) {
  animation: fadeUp 1s var(--ease-out) 0.9s forwards;
}

.hero-desc {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 200;
  letter-spacing: 0.12em;
  line-height: 2.2;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s var(--ease-out) 1.2s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 1.5s forwards;
}

.hero-scroll span:first-child {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.8);
}

.scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

.hero-scroll:hover {
  opacity: 0.8 !important;
}

/* ---------- SECTIONS ---------- */
.section {
  padding: var(--section-padding) 0;
}

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

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

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

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

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

.section-header {
  text-align: center;
  margin-bottom: 70px;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--color-text);
}

.section-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  letter-spacing: 0.06em;
}

/* ---------- CONCEPT ---------- */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.concept-image {
  overflow: hidden;
}

.concept-image svg {
  width: 100%;
  height: auto;
  display: block;
}

.image-placeholder {
  overflow: hidden;
  position: relative;
}

.concept-text {
  padding: 20px 0;
}

.concept-lead {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 300;
  line-height: 2.4;
  letter-spacing: 0.1em;
  margin-bottom: 36px;
  color: var(--color-text);
}

.concept-body {
  font-size: 0.88rem;
  line-height: 2.2;
  color: var(--color-text-light);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

/* ---------- ABOUT ---------- */
.about-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
}

.about-card {
  text-align: center;
  padding: 40px 20px;
}

.about-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
}

.about-icon svg {
  width: 100%;
  height: 100%;
}

.about-card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  color: var(--color-text);
}

.about-card-text {
  font-size: 0.85rem;
  line-height: 2;
  color: var(--color-text-light);
}

/* ---------- MENU ---------- */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
}

.menu-item {
  background-color: var(--color-white);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}

.menu-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(138, 126, 107, 0.1);
}

.menu-image {
  overflow: hidden;
}

.menu-image svg {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease-out);
}

.menu-item:hover .menu-image svg {
  transform: scale(1.03);
}

.menu-info {
  padding: 28px 30px 32px;
}

.menu-tag {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  display: inline-block;
  margin-bottom: 8px;
}

.menu-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  color: var(--color-text);
}

.menu-desc {
  font-size: 0.82rem;
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.menu-price {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
}

.menu-btn {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.65rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--color-accent-dark);
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease;
}

.menu-btn:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ---------- GALLERY ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gallery-item {
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
}

.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s var(--ease-out);
}

.gallery-placeholder span {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-accent);
  opacity: 0.5;
}

.gallery-item:hover .gallery-placeholder {
  transform: scale(1.05);
}

.gallery-cta {
  text-align: center;
  margin-top: 50px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  padding: 14px 36px;
  transition: all 0.3s var(--ease-out);
  cursor: pointer;
  border: none;
}

.btn--outline {
  border: 1px solid var(--color-accent);
  color: var(--color-text-light);
  background: transparent;
}

.btn--outline:hover {
  background-color: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-white);
  opacity: 1;
}

.btn--primary {
  background-color: var(--color-text);
  color: var(--color-white);
  border: 1px solid var(--color-text);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  opacity: 1;
}

/* ---------- INFO ---------- */
.info-list {
  max-width: 800px;
  margin: 0 auto;
}

.info-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.3s var(--ease-out);
}

.info-item:first-child {
  border-top: 1px solid var(--color-border);
}

.info-item:hover {
  background-color: rgba(184, 168, 138, 0.05);
  padding-left: 10px;
}

.info-date {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  flex-shrink: 0;
  width: 100px;
}

.info-tag {
  font-family: var(--font-display);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  border: 1px solid var(--color-accent-light);
  padding: 3px 12px;
  flex-shrink: 0;
}

.info-text {
  font-size: 0.88rem;
  color: var(--color-text-light);
}

/* ---------- CONTACT ---------- */
.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-block {
  margin-bottom: 36px;
}

.contact-block h3 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  color: var(--color-text);
}

.contact-block p {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 8px;
}

.contact-block .btn {
  margin-top: 8px;
}

.map-placeholder {
  overflow: hidden;
}

.map-placeholder svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- FOOTER ---------- */
.footer {
  background-color: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 30px;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo-en {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.9);
  display: block;
}

.footer-logo-jp {
  font-family: var(--font-serif);
  font-size: 0.6rem;
  font-weight: 200;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.4);
  display: block;
  margin-top: 2px;
}

.footer-tagline {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-nav {
  display: flex;
  gap: 28px;
}

.footer-nav a {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s var(--ease-out);
}

.footer-nav a:hover {
  color: rgba(255, 255, 255, 0.9);
  opacity: 1;
}

.footer-social a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s var(--ease-out);
}

.footer-social a:hover {
  color: rgba(255, 255, 255, 0.9);
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
}

.footer-bottom p {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.3);
}

/* ---------- ANIMATIONS ---------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.4; transform: scaleY(0.6); transform-origin: top; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  :root {
    --section-padding: 80px;
    --header-height: 70px;
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: 1005;
    transition: right 0.4s var(--ease-in-out);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -4px 0 30px rgba(0, 0, 0, 0.08);
  }

  .nav.open {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 28px;
  }

  .nav-list a {
    font-size: 0.9rem;
  }

  .nav-cta {
    margin-top: 12px;
  }

  .concept-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .menu-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .contact-content {
    max-width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    gap: 30px;
    align-items: center;
    text-align: center;
  }

  .footer-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .info-item {
    flex-wrap: wrap;
    gap: 10px;
  }

  .info-date {
    width: auto;
  }

  .info-text {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 60px;
  }

  .hero-title {
    font-size: 1.6rem;
    line-height: 2.2;
  }

  .hero-sub {
    font-size: 0.7rem;
  }

  .hero-desc {
    font-size: 0.8rem;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .concept-lead {
    font-size: 1rem;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .menu-info {
    padding: 20px;
  }
}

/* Mobile nav overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(58, 53, 48, 0.4);
  z-index: 1002;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-out), visibility 0.4s;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}