/* リーンクリニック by ambii — ミニマル・ビューティ系LP（ambii.com のクリーンさを参考したスタイル） */

:root {
  --bg: #faf9f7;
  --bg-elevated: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --accent: #292524;
  --accent-soft: #57534e;
  --highlight: #d6d3d1;
  --radius-lg: 20px;
  --radius-md: 12px;
  --font-en: "DM Sans", system-ui, sans-serif;
  --font-jp: "Noto Sans JP", var(--font-en);
  --max: 1080px;
  --header-h: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  opacity: 0.85;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
}

.skip-link:focus {
  left: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(250, 249, 247, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

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

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-en);
}

.logo #text-nav-brand {
  display: block;
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 1rem;
  text-transform: uppercase;
  color: var(--text);
}

.logo #text-nav-sub {
  display: block;
  font-weight: 400;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.lang-switch button {
  border: none;
  background: none;
  cursor: pointer;
  padding: 0.25rem 0.4rem;
  font: inherit;
  color: var(--muted);
  border-radius: 6px;
}

.lang-switch button[aria-current="true"] {
  color: var(--text);
  font-weight: 600;
  background: var(--highlight);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.8rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  font-size: 0.875rem;
  color: var(--accent-soft);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fafaf9;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(28, 25, 23, 0.12);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--text);
}

.hero {
  min-height: min(88vh, 820px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.25rem 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(214, 211, 209, 0.45), transparent),
    linear-gradient(180deg, var(--bg) 0%, #f5f5f4 100%);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-en);
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero-lead {
  margin: 0 0 2rem;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.hero-note {
  margin: 1.75rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.section {
  padding: 5rem 1.25rem;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.section h2 {
  margin: 0 0 2.5rem;
  font-size: clamp(1.65rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.stat-card strong {
  display: block;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.stat-card span {
  font-size: 0.85rem;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  background: var(--bg-elevated);
}

.feature-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 3rem;
}

.price-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.price-card.is-featured {
  border-color: var(--text);
  box-shadow: 0 18px 40px rgba(28, 25, 23, 0.08);
}

.price-card .tag {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.price-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.price-main {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.price-sub {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.price-card ul {
  margin: 0 0 1.25rem;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  color: var(--muted);
  flex: 1;
}

.price-card .btn {
  width: 100%;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 640px;
}

.data-table th,
.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.data-table th {
  background: #f5f5f4;
  font-weight: 600;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table td:first-child {
  text-align: left;
  font-weight: 500;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.process-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  background: var(--bg-elevated);
}

.process-step .num {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.process-step h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.process-step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 0;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  text-align: left;
  font-weight: 600;
}

.faq-q span.icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--muted);
  transition: transform 0.2s;
}

.faq-item.is-open .faq-q span.icon {
  transform: rotate(45deg);
}

.faq-a {
  display: none;
  padding: 0 0 1.15rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.faq-item.is-open .faq-a {
  display: block;
}

.cta-section {
  text-align: center;
  padding: 4rem 1.25rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f5f5f4 0%, var(--bg) 100%);
}

.cta-section h2 {
  margin: 0 0 0.75rem;
}

.cta-section p {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.site-footer {
  padding: 3rem 1.25rem 2rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-bottom {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.demo-banner {
  background: #fffbeb;
  border-bottom: 1px solid #fcd34d;
  color: #92400e;
  font-size: 0.8rem;
  text-align: center;
  padding: 0.5rem 1rem;
}

@media (max-width: 900px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .process-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
    flex-direction: column;
    align-items: stretch;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .nav-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}