/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-weight: 400;
  line-height: 2;
  color: #2c2c2c;
  background: #f5f5f0;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* ===== Color tokens ===== */
:root {
  --color-indigo-deep: #1e3a5f;
  --color-indigo: #2c4f7c;
  --color-indigo-light: #d8e2eb;
  --color-off-white: #f5f5f0;
  --color-paper: #fafaf5;
  --color-ink: #2c2c2c;
  --color-gold: #c9a961;
  --color-gray: #6e6e6e;
  --color-rule: #d9d9d4;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow {
  max-width: 680px;
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(180deg, var(--color-indigo-deep) 0%, var(--color-indigo) 100%);
  color: #fff;
  padding: 100px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 50% 30%, rgba(201, 169, 97, 0.15) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  margin: 0 0 32px;
  font-weight: 400;
}
.hero-title {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(28px, 6vw, 44px);
  line-height: 1.7;
  margin: 0 0 32px;
  letter-spacing: 0.05em;
}
.hero-title span {
  display: block;
}
.hero-lead {
  font-size: clamp(18px, 3vw, 22px);
  letter-spacing: 0.1em;
  margin: 0 0 16px;
  line-height: 1.6;
}
.hero-subtitle {
  font-size: 14px;
  letter-spacing: 0.3em;
  opacity: 0.85;
  margin: 0 0 48px;
}
.hero-motifs {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  font-size: 24px;
  color: var(--color-gold);
}
.hero-motifs .motif {
  opacity: 0.85;
}
.hero-cta {
  display: inline-block;
  padding: 18px 56px;
  background: var(--color-gold);
  color: var(--color-indigo-deep);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.2em;
  font-size: 15px;
  border: 1px solid var(--color-gold);
  transition: background 0.3s, color 0.3s;
}
.hero-cta:hover {
  background: transparent;
  color: var(--color-gold);
}
.hero-deadline {
  margin: 24px 0 0;
  font-size: 13px;
  letter-spacing: 0.2em;
  opacity: 0.7;
}

/* ===== Section base ===== */
.section {
  padding: 100px 0;
}
.section + .section {
  border-top: 1px solid var(--color-rule);
}
.section-eyebrow {
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--color-gold);
  text-align: center;
  margin: 0 0 16px;
  text-transform: uppercase;
}
.section-title {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(24px, 4vw, 32px);
  text-align: center;
  margin: 0 0 64px;
  letter-spacing: 0.1em;
  color: var(--color-indigo-deep);
  position: relative;
  padding-bottom: 24px;
}
.section-title::after {
  content: "";
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-gold);
  margin: 16px auto 0;
}

/* ===== Prose (本文) ===== */
.prose {
  font-size: 16px;
  line-height: 2.2;
}
.prose p {
  margin: 0 0 32px;
}
.prose .emphasis {
  font-size: 18px;
  color: var(--color-indigo-deep);
  text-align: center;
  font-weight: 500;
  margin: 48px 0;
}
.rule {
  border: 0;
  border-top: 1px solid var(--color-rule);
  width: 60px;
  margin: 48px auto;
}

/* ===== Section specific backgrounds ===== */
.narrative {
  background: var(--color-paper);
}
.takefu {
  background: #fff;
}
.aizome {
  background: var(--color-indigo-light);
}
.combination {
  background: var(--color-off-white);
}
.dyer {
  background: var(--color-paper);
}
.products {
  background: #fff;
}
.process {
  background: var(--color-paper);
}
.faq {
  background: #fff;
}
.cta {
  background: var(--color-indigo-deep);
  color: #fff;
}

/* ===== Dyer placeholder ===== */
.placeholder p,
.placeholder .image-placeholder {
  color: var(--color-gray);
  text-align: center;
}
.image-placeholder {
  border: 1px dashed var(--color-gray);
  padding: 80px 24px;
  margin: 32px 0;
  font-size: 14px;
  letter-spacing: 0.1em;
}

/* ===== Products ===== */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }
}
.product {
  background: var(--color-paper);
  padding: 32px;
  border: 1px solid var(--color-rule);
}
.product-image-placeholder {
  background: var(--color-indigo-light);
  padding: 64px 24px;
  text-align: center;
  margin-bottom: 24px;
  position: relative;
}
.product-image-placeholder .motif.large {
  font-size: 64px;
  color: var(--color-indigo-deep);
  display: block;
  margin-bottom: 16px;
}
.image-note {
  font-size: 12px;
  color: var(--color-gray);
  letter-spacing: 0.1em;
  margin: 0;
}
.product-title {
  font-family: "Shippori Mincho", serif;
  font-size: 24px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--color-indigo-deep);
  letter-spacing: 0.1em;
}
.product-en {
  font-size: 13px;
  color: var(--color-gold);
  letter-spacing: 0.2em;
  margin-left: 8px;
}
.product-tagline {
  font-size: 15px;
  color: var(--color-indigo);
  margin: 0 0 16px;
  letter-spacing: 0.05em;
}
.product-desc {
  font-size: 14px;
  line-height: 2;
  margin: 0 0 24px;
}
.product-spec {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 8px 16px;
  font-size: 13px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-rule);
}
.product-spec dt {
  color: var(--color-gray);
}
.product-spec dd {
  margin: 0;
}

/* ===== Process ===== */
.process-list {
  list-style: none;
  padding: 0;
  margin: 0 0 48px;
  counter-reset: process;
}
.process-list li {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-rule);
}
.process-list li:last-child {
  border-bottom: 0;
}
.process-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-indigo-deep);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Shippori Mincho", serif;
  font-size: 16px;
}
.process-list h3 {
  font-family: "Shippori Mincho", serif;
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 8px;
  color: var(--color-indigo-deep);
}
.process-list p {
  margin: 0;
  font-size: 14px;
  color: var(--color-gray);
}

/* ===== FAQ ===== */
.faq-list dt {
  font-family: "Shippori Mincho", serif;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-indigo-deep);
  margin: 32px 0 12px;
}
.faq-list dt:first-child {
  margin-top: 0;
}
.faq-list dd {
  margin: 0;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-ink);
  border-left: 2px solid var(--color-gold);
}

/* ===== CTA ===== */
.cta .section-title {
  color: #fff;
}
.cta .section-title::after {
  background: var(--color-gold);
}
.cta-message {
  text-align: center;
  margin-bottom: 64px;
  font-size: 16px;
  line-height: 2;
}
.cta-message p {
  margin: 0 0 24px;
}

/* ===== Form ===== */
.reservation-form {
  background: #fff;
  color: var(--color-ink);
  padding: 48px 32px;
  border: 1px solid var(--color-gold);
}
@media (min-width: 768px) {
  .reservation-form {
    padding: 64px 56px;
  }
}
.form-title {
  font-family: "Shippori Mincho", serif;
  font-size: 22px;
  text-align: center;
  color: var(--color-indigo-deep);
  margin: 0 0 8px;
  letter-spacing: 0.1em;
}
.form-note {
  text-align: center;
  font-size: 12px;
  color: var(--color-gray);
  margin: 0 0 32px;
}
.field {
  margin-bottom: 24px;
  border: 0;
  padding: 0;
}
.field label,
.field legend {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--color-indigo-deep);
  font-weight: 500;
}
.required {
  display: inline-block;
  font-size: 11px;
  background: var(--color-gold);
  color: #fff;
  padding: 2px 8px;
  margin-left: 8px;
  letter-spacing: 0.1em;
  vertical-align: middle;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="number"],
.field select,
.field textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid var(--color-rule);
  background: var(--color-paper);
  border-radius: 0;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-indigo-deep);
}
.field textarea {
  resize: vertical;
  min-height: 80px;
}
.checkbox {
  display: block;
  font-size: 14px;
  margin: 8px 0;
  font-weight: 400;
  color: var(--color-ink);
  cursor: pointer;
}
.checkbox input {
  margin-right: 8px;
}
.submit-button {
  display: block;
  width: 100%;
  padding: 18px;
  background: var(--color-indigo-deep);
  color: #fff;
  border: 0;
  font-size: 15px;
  letter-spacing: 0.2em;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s;
  margin-top: 16px;
}
.submit-button:hover {
  background: var(--color-indigo);
}
.form-footer {
  text-align: center;
  font-size: 13px;
  color: var(--color-gray);
  margin: 24px 0 0;
  line-height: 1.8;
}

/* ===== Signature ===== */
.signature {
  text-align: center;
  font-family: "Shippori Mincho", serif;
  font-size: 16px;
  margin-top: 64px;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.85);
}

/* ===== Footer ===== */
.footer {
  background: #fafaf5;
  padding: 64px 0 48px;
  text-align: center;
  border-top: 1px solid var(--color-rule);
}
.footer-title {
  font-family: "Shippori Mincho", serif;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-indigo-deep);
  margin: 0 0 16px;
  letter-spacing: 0.15em;
}
.footer-email {
  font-size: 15px;
  margin: 0 0 16px;
  color: var(--color-ink);
}
.footer-note {
  font-size: 12px;
  color: var(--color-gray);
  margin: 0 0 32px;
  line-height: 1.8;
}
.footer-copyright {
  font-size: 12px;
  color: var(--color-gray);
  letter-spacing: 0.1em;
  margin: 0;
}

/* ===== Responsive adjustments ===== */
@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }
  .hero {
    padding: 80px 24px 64px;
  }
  .section-title {
    margin-bottom: 48px;
  }
  .reservation-form {
    padding: 32px 20px;
  }
}