/* Zen Harmony Design System — 手揉み処 癒庵 */

:root {
  /* Surface */
  --surface: #fbf9f4;
  --surface-dim: #dbdad5;
  --surface-container: #f0eee9;
  --surface-container-high: #eae8e3;
  --on-surface: #1b1c19;
  --on-surface-variant: #44474d;
  --outline: #75777e;
  --outline-variant: #c5c6ce;

  /* Primary — Deep Indigo */
  --primary: #04142c;
  --primary-container: #1a2942;
  --on-primary: #ffffff;
  --on-primary-container: #8290ae;
  --inverse-primary: #b8c7e7;

  /* Secondary — Gold */
  --secondary: #775a19;
  --secondary-container: #fed488;
  --on-secondary-container: #785a1a;
  --gold-accent: #c5a059;

  /* Tertiary — Warm Wood */
  --tertiary: #220f08;
  --tertiary-container: #3a231b;
  --on-tertiary-container: #aa897d;
  --warm-wood: #8d6e63;

  /* Background */
  --background: #fbf9f4;
  --washi-white: #f9f7f2;

  /* Typography */
  --font-serif: "Noto Serif JP", "Noto Serif", serif;
  --font-sans: "Plus Jakarta Sans", sans-serif;

  /* Spacing */
  --unit: 8px;
  --gutter: 24px;
  --margin-mobile: 20px;
  --margin-desktop: 80px;
  --max-width: 1200px;

  /* Radius */
  --radius-sm: 0.125rem;
  --radius: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-ambient: 0 20px 40px rgba(26, 41, 66, 0.04);
  --border-ghost: 1px solid rgba(26, 41, 66, 0.05);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--on-surface);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
}

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

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

/* Typography */
.headline-xl {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.headline-lg {
  font-family: var(--font-serif);
  font-size: clamp(1.625rem, 3vw, 2rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.03em;
}

.body-md {
  font-size: 16px;
  line-height: 1.7;
}

.body-sm {
  font-size: 14px;
  line-height: 1.6;
}

.label-caps {
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--margin-desktop);
  }
}

.section {
  padding: 80px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 120px 0;
  }
}

/* Pre-opening Banner */
.pre-opening-banner {
  background: var(--primary-container);
  color: var(--gold-accent);
  padding: calc(var(--unit) * 1.5) var(--margin-mobile);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--unit) * 2);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.pre-opening-banner .mizuhiki-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 249, 244, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: var(--border-ghost);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--unit) * 2) 0;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--primary-container);
}

.nav-logo span {
  display: block;
  font-size: 0.65rem;
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--on-surface-variant);
  margin-top: 2px;
}

.nav-links {
  display: none;
  gap: calc(var(--unit) * 4);
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary-container);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: calc(var(--unit) * 1.25) calc(var(--unit) * 3);
  background: var(--primary-container);
  color: var(--on-primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--primary);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

/* Mobile menu toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary-container);
  transition: 0.2s;
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: calc(var(--unit) * 2);
  padding: calc(var(--unit) * 2) 0 calc(var(--unit) * 3);
  border-top: var(--border-ghost);
}

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

.mobile-menu a {
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
  padding: calc(var(--unit) * 1) 0;
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(4, 20, 44, 0.75) 0%,
    rgba(26, 41, 66, 0.45) 50%,
    rgba(251, 249, 244, 0.1) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  color: var(--on-primary);
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--unit) * 1);
  padding: calc(var(--unit) * 1) calc(var(--unit) * 2.5);
  background: rgba(197, 160, 89, 0.2);
  border: 1px solid var(--gold-accent);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gold-accent);
  margin-bottom: calc(var(--unit) * 3);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.08em;
  margin-bottom: calc(var(--unit) * 2);
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  opacity: 0.9;
  margin-bottom: calc(var(--unit) * 4);
}

.hero-desc {
  font-size: 15px;
  line-height: 1.8;
  opacity: 0.85;
  margin-bottom: calc(var(--unit) * 5);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--unit) * 2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--unit) * 1);
  padding: calc(var(--unit) * 2) calc(var(--unit) * 4);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-primary {
  background: var(--primary-container);
  color: var(--on-primary);
}

.btn-primary:hover {
  background: var(--primary);
}

.btn-gold {
  background: transparent;
  color: var(--gold-accent);
  border: 1px solid var(--gold-accent);
  position: relative;
  overflow: hidden;
}

.btn-gold::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(197, 160, 89, 0.15) 50%,
    transparent 60%
  );
  transform: translateX(-100%);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  50%, 100% { transform: translateX(100%); }
}

.btn-outline {
  background: transparent;
  color: var(--on-primary);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
  border-color: var(--on-primary);
  background: rgba(255, 255, 255, 0.08);
}

/* Concept Section */
.concept-grid {
  display: grid;
  gap: calc(var(--unit) * 6);
  align-items: center;
}

@media (min-width: 768px) {
  .concept-grid {
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--unit) * 10);
  }
}

.concept-image {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.concept-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept-image::after {
  content: "";
  position: absolute;
  inset: 0;
  border: var(--border-ghost);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.section-label {
  color: var(--gold-accent);
  margin-bottom: calc(var(--unit) * 2);
}

.section-title {
  color: var(--primary-container);
  margin-bottom: calc(var(--unit) * 4);
}

.concept-text p {
  color: var(--on-surface-variant);
  margin-bottom: calc(var(--unit) * 3);
}

.concept-features {
  display: grid;
  gap: calc(var(--unit) * 3);
  margin-top: calc(var(--unit) * 5);
}

.concept-feature {
  display: flex;
  gap: calc(var(--unit) * 2);
  align-items: flex-start;
}

.concept-feature-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold-accent);
  line-height: 1;
  flex-shrink: 0;
}

.concept-feature h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  color: var(--primary-container);
}

.concept-feature p {
  font-size: 14px;
  color: var(--on-surface-variant);
  margin: 0;
}

/* Plans Section */
.plans-section {
  background: var(--washi-white);
  position: relative;
}

.plans-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(26, 41, 66, 0.015) 8px,
    rgba(26, 41, 66, 0.015) 9px
  );
  pointer-events: none;
}

.plans-header {
  text-align: center;
  margin-bottom: calc(var(--unit) * 8);
  position: relative;
}

.plans-grid {
  display: grid;
  gap: calc(var(--unit) * 3);
  position: relative;
}

@media (min-width: 768px) {
  .plans-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.plan-card {
  background: transparent;
  border: var(--border-ghost);
  border-radius: var(--radius-lg);
  padding: calc(var(--unit) * 4);
  transition: box-shadow 0.3s, border-color 0.3s;
}

.plan-card:hover {
  box-shadow: var(--shadow-ambient);
  border-color: rgba(26, 41, 66, 0.12);
}

.plan-card.featured {
  border-color: rgba(197, 160, 89, 0.4);
  position: relative;
}

.plan-badge {
  position: absolute;
  top: calc(var(--unit) * 2);
  right: calc(var(--unit) * 2);
  padding: calc(var(--unit) * 0.75) calc(var(--unit) * 2);
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.plan-name {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--primary-container);
  margin-bottom: calc(var(--unit) * 1);
}

.plan-duration {
  font-size: 13px;
  color: var(--on-surface-variant);
  margin-bottom: calc(var(--unit) * 3);
}

.plan-desc {
  font-size: 14px;
  color: var(--on-surface-variant);
  margin-bottom: calc(var(--unit) * 4);
  line-height: 1.7;
}

.plan-price {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--primary-container);
  letter-spacing: 0.03em;
}

.plan-price span {
  font-size: 14px;
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--on-surface-variant);
}

/* Menu / Price List */
.menu-list {
  max-width: 640px;
  margin: calc(var(--unit) * 8) auto 0;
  position: relative;
}

.menu-item {
  display: flex;
  align-items: baseline;
  gap: calc(var(--unit) * 1);
  padding: calc(var(--unit) * 2) 0;
  border-bottom: 1px solid var(--outline-variant);
}

.menu-item-name {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.menu-item-dots {
  flex: 1;
  border-bottom: 1px dotted var(--outline-variant);
  min-width: 20px;
  margin-bottom: 4px;
}

.menu-item-price {
  font-weight: 600;
  font-size: 15px;
  color: var(--primary-container);
  white-space: nowrap;
}

.menu-group-title {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--gold-accent);
  margin: calc(var(--unit) * 4) 0 calc(var(--unit) * 2);
  padding-bottom: calc(var(--unit) * 1);
  border-bottom: 1px solid rgba(197, 160, 89, 0.25);
}

.menu-group-title:first-child {
  margin-top: 0;
}

/* Store Info */
.info-grid {
  display: grid;
  gap: calc(var(--unit) * 6);
}

@media (min-width: 768px) {
  .info-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.info-card {
  padding: calc(var(--unit) * 5);
  border: var(--border-ghost);
  border-radius: var(--radius-lg);
}

.info-card h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--primary-container);
  margin-bottom: calc(var(--unit) * 3);
  padding-bottom: calc(var(--unit) * 2);
  border-bottom: 1px solid rgba(26, 41, 66, 0.08);
}

.info-row {
  display: flex;
  gap: calc(var(--unit) * 2);
  margin-bottom: calc(var(--unit) * 2.5);
  font-size: 14px;
}

.info-row dt {
  flex-shrink: 0;
  width: 80px;
  color: var(--on-surface-variant);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.info-row dd {
  color: var(--on-surface);
}

.info-note {
  font-size: 13px;
  color: var(--on-surface-variant);
  margin-top: calc(var(--unit) * 2);
  padding-top: calc(var(--unit) * 2);
  border-top: 1px solid rgba(26, 41, 66, 0.06);
}

/* Access Map */
.map-embed {
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
  border-radius: var(--radius-lg);
  display: block;
}

/* Notify Form */
.notify-section {
  background: var(--primary-container);
  color: var(--on-primary);
  text-align: center;
}

.notify-section .section-title {
  color: var(--on-primary);
}

.notify-section .body-md {
  opacity: 0.85;
  max-width: 480px;
  margin: 0 auto calc(var(--unit) * 5);
}

.notify-form {
  display: flex;
  flex-direction: column;
  gap: calc(var(--unit) * 2);
  max-width: 440px;
  margin: 0 auto;
}

@media (min-width: 480px) {
  .notify-form {
    flex-direction: row;
  }
}

.input-field {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--on-primary);
  padding: calc(var(--unit) * 1.5) 0;
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.input-field::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.input-field:focus {
  border-bottom-color: var(--gold-accent);
}

/* Footer */
.footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: calc(var(--unit) * 8) 0 calc(var(--unit) * 4);
}

.footer-inner {
  display: grid;
  gap: calc(var(--unit) * 6);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--on-primary);
  margin-bottom: calc(var(--unit) * 2);
}

.footer-brand span {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.15em;
  opacity: 0.6;
  margin-top: 4px;
}

.footer-links h4 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-accent);
  margin-bottom: calc(var(--unit) * 2);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: calc(var(--unit) * 1);
}

.footer-links a {
  font-size: 14px;
  transition: color 0.2s;
}

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

.footer-bottom {
  margin-top: calc(var(--unit) * 6);
  padding-top: calc(var(--unit) * 3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* Status Chip */
.status-chip {
  display: inline-flex;
  align-items: center;
  padding: calc(var(--unit) * 0.75) calc(var(--unit) * 2);
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}