:root {
  --bg: #f6f2e8;
  --bg-soft: #fbf8f0;
  --surface: rgba(255,255,255,0.72);
  --surface-strong: rgba(255,255,255,0.9);
  --ink: #183128;
  --ink-soft: #446053;
  --line: rgba(24, 49, 40, 0.12);
  --accent: #245f47;
  --accent-2: #99bf8a;
  --accent-3: #d7cf9e;
  --shadow: 0 18px 50px rgba(17, 38, 31, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(153, 191, 138, 0.18), transparent 24%),
    linear-gradient(180deg, #f8f4eb 0%, #f5f1e8 100%);
  line-height: 1.75;
  font-size: 18px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(24,49,40,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(24,49,40,0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.35), transparent 80%);
  opacity: .4;
}

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

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

button {
  font: inherit;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
  position: relative;
}

.tonal-section {
  background: linear-gradient(180deg, rgba(255,255,255,0.42), rgba(255,255,255,0.16));
  border-block: 1px solid rgba(24, 49, 40, 0.07);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-kicker,
.eyebrow,
.stat-label,
.tea-card-label {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.77rem;
  color: var(--accent);
  margin: 0 0 12px;
  font-weight: 700;
}

.section-heading h2,
.hero h1 {
  font-family: "Noto Serif JP", serif;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 3rem);
}

.section-heading p,
.lead,
.info-panel p,
.card p,
.source-card p,
.source-card li {
  color: var(--ink-soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(248, 244, 235, 0.7);
  border-bottom: 1px solid rgba(24,49,40,0.09);
}

.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
}

.brand strong {
  display: block;
  font-size: 1.12rem;
  letter-spacing: 0.06em;
}

.brand small {
  display: block;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #2f6b4f;
  background: linear-gradient(135deg, rgba(153, 191, 138, 0.36), rgba(255,255,255,0.8));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
}

.brand-mark svg {
  width: 24px;
  height: 24px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 20px;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  color: var(--ink);
}

.hero {
  padding: 56px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.9fr);
  gap: 34px;
  align-items: center;
}

.hero-copy {
  padding: 24px 0;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.6rem);
}

.lead {
  max-width: 62ch;
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
}

.button-primary {
  background: linear-gradient(135deg, #204f3e, #2e7155);
  color: #fff;
  box-shadow: 0 14px 28px rgba(32, 79, 62, 0.22);
}

.button-secondary {
  background: rgba(255,255,255,0.65);
  border-color: rgba(24, 49, 40, 0.12);
}

.hero-points {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--ink-soft);
}

.hero-points li {
  position: relative;
  padding-left: 26px;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 0 0 6px rgba(153,191,138,0.18);
}

.hero-visual {
  position: relative;
  min-height: 520px;
}

.tea-card {
  position: absolute;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255,255,255,0.84), rgba(255,255,255,0.62));
  border: 1px solid rgba(24,49,40,0.1);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.tea-card-main {
  inset: 10px 30px 78px 0;
  padding: 26px;
}

.tea-card-side {
  right: 0;
  bottom: 0;
  width: 58%;
  padding: 20px 22px;
}

.tea-card-side strong {
  font-family: "Noto Serif JP", serif;
  font-size: 1.4rem;
  line-height: 1.4;
}

.tea-orbit {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 26px;
}

.tea-orbit span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 62px;
  border-radius: var(--radius-md);
  background: rgba(245, 241, 232, 0.9);
  border: 1px solid rgba(24,49,40,0.08);
  font-weight: 700;
}

.tea-bowl {
  width: min(280px, 72%);
  aspect-ratio: 1 / 1;
  margin: 34px auto 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #efe8d4, #f9f5ee);
  border: 12px solid rgba(248, 244, 235, 0.9);
  display: grid;
  place-items: center;
  box-shadow: inset 0 0 0 1px rgba(24,49,40,0.06), 0 18px 36px rgba(24,49,40,0.08);
}

.tea-liquid {
  width: 78%;
  height: 78%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 32%, rgba(255,255,255,0.55), transparent 24%),
    radial-gradient(circle at 50% 60%, rgba(214, 236, 174, 0.75), rgba(106, 155, 80, 0.98));
  box-shadow: inset 0 18px 28px rgba(255,255,255,0.2);
}

.overview-grid,
.card-grid,
.process-grid,
.awards-grid,
.sources-grid,
.beginner-grid {
  display: grid;
  gap: 18px;
}

.overview-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-panel,
.card,
.process-card,
.region-card,
.award-card,
.guide-card,
.source-card,
.stat-card,
.note-box,
.gi-box,
.compare-table-wrap,
.mini-card,
.producer-item {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(24,49,40,0.08);
  background: rgba(255,255,255,0.74);
  box-shadow: var(--shadow);
}

.info-panel,
.guide-card,
.source-card,
.note-box,
.gi-box,
.stat-card,
.compare-table-wrap {
  padding: 24px;
}

.info-panel h3,
.guide-card h3,
.source-card h3,
.stat-card h3,
.gi-box h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.split-heading {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: flex-end;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(24,49,40,0.12);
  background: rgba(255,255,255,0.65);
  color: var(--ink-soft);
  cursor: pointer;
}

.chip.is-active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #235944, #2d7559);
}

.card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.process-card,
.award-card,
.region-card,
.mini-card,
.producer-item {
  padding: 22px;
}

.card .tag-row,
.award-tags,
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag,
.meta-pill {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  background: rgba(36, 95, 71, 0.08);
  color: var(--accent);
  font-weight: 700;
}

.card h3,
.process-card h3,
.region-card h3,
.award-card h3,
.mini-card h3,
.producer-item h3 {
  margin: 0 0 8px;
  font-size: 1.16rem;
}

.card .meter {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.meter-line {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 10px;
  align-items: center;
  font-size: 0.86rem;
}

.meter-line .bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(24,49,40,0.09);
  overflow: hidden;
}

.meter-line .bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #98bf86, #2d7054);
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px;
  border-left: 2px solid rgba(36,95,71,0.22);
  margin-left: 10px;
  position: relative;
  background: rgba(255,255,255,0.58);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -11px;
  top: 24px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 0 0 6px rgba(153,191,138,0.18);
}

.timeline-year {
  font-weight: 800;
  color: var(--accent);
}

.process-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.process-card {
  position: relative;
  overflow: hidden;
}

.process-card::after {
  content: attr(data-step);
  position: absolute;
  right: 16px;
  top: 12px;
  font-size: 2rem;
  color: rgba(36,95,71,0.09);
  font-weight: 800;
}

.regions-layout,
.brand-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 22px;
}

.regions-list,
.mini-grid,
.producer-list {
  display: grid;
  gap: 16px;
}

.region-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}

.region-rank {
  min-width: 52px;
  min-height: 52px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(153, 191, 138, 0.18), rgba(36,95,71,0.14));
  color: var(--accent);
  font-weight: 800;
}

.stat-card.muted {
  background: rgba(245,241,232,0.86);
}

.stat-card ul,
.source-card ul,
.guide-card ul {
  margin: 10px 0 0;
  padding-left: 1.2em;
}

.mini-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.producer-item h4,
.mini-card h4 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.awards-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.award-card .award-tags {
  margin-top: 14px;
}

.beginner-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 22px;
}

.compare-table-wrap {
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
}

.compare-table caption {
  text-align: left;
  margin-bottom: 12px;
  font-weight: 800;
  color: var(--ink);
}

.compare-table th,
.compare-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid rgba(24,49,40,0.1);
}

.compare-table th {
  font-size: 0.95rem;
  color: var(--accent);
}

.sources-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.source-card a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 28px 0 42px;
  border-top: 1px solid rgba(24,49,40,0.08);
}

.footer-note {
  color: var(--ink-soft);
  font-size: 0.93rem;
}

@media (max-width: 1120px) {
  .overview-grid,
  .beginner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid,
  .awards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-grid,
  .regions-layout,
  .brand-columns,
  .sources-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 440px;
  }
}

@media (max-width: 840px) {
  body {
    font-size: 17px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 78px;
    left: 16px;
    right: 16px;
    padding: 16px;
    border-radius: 22px;
    background: rgba(255,255,255,0.92);
    border: 1px solid rgba(24,49,40,0.09);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .split-heading {
    display: grid;
  }

  .card-grid,
  .awards-grid,
  .sources-grid,
  .mini-grid,
  .overview-grid,
  .beginner-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .timeline-year {
    padding-left: 4px;
  }

  .hero-visual {
    min-height: 500px;
  }

  .tea-card-main {
    inset: 0 0 84px 0;
  }

  .tea-card-side {
    width: calc(100% - 22px);
    left: 11px;
  }

  .region-card {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 72px 0;
  }

  .hero {
    padding-top: 30px;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .button {
    width: 100%;
  }

  .tea-orbit {
    grid-template-columns: 1fr 1fr;
  }

  .tea-bowl {
    width: min(240px, 80%);
  }

  .timeline-item,
  .card,
  .process-card,
  .region-card,
  .award-card,
  .guide-card,
  .source-card,
  .info-panel,
  .note-box,
  .gi-box,
  .stat-card,
  .compare-table-wrap {
    padding: 18px;
  }
}