:root {
  color-scheme: light;
  --bg: #fafafa;
  --panel: #fff;
  --text: #1a1a1a;
  --text-muted: #555;
  --line: #e0e0e0;
  --accent: #1a1a1a;
  --cta: #1a1a1a;
  --cta-hover: #333;
  --cta-text: #fff;
  font-family: "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  line-break: strict;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  overflow-wrap: anywhere;
  font-feature-settings: "palt" 1;
}

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

.page {
  width: min(960px, calc(100vw - 40px));
  margin: 0 auto;
  padding-bottom: 40px;
}

/* --- Header --- */

.site-header,
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.site-header {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.brand-mark {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
}

.header-link {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.header-link:hover {
  color: var(--text);
}

/* --- Eyebrow --- */

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

/* --- Hero --- */

.hero,
.lp-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding: 48px 0;
  align-items: start;
}

.hero-copy,
.hero-visual {
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
}

h1 {
  margin: 12px 0 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  line-height: 1.35;
}

h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
  line-height: 1.5;
}

p,
li {
  color: var(--text-muted);
}

.lead {
  max-width: 36rem;
  margin-top: 16px;
  font-size: 0.95rem;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* --- Buttons --- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background-color 120ms ease;
}

.button.primary {
  background: var(--cta);
  color: var(--cta-text);
}

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

.button.secondary {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

.button.secondary:hover {
  border-color: #bbb;
}

/* --- Flow (hero right) --- */

.hero-visual {
  background: #f5f5f5;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
}

.flow {
  display: grid;
  gap: 12px;
}

.flow-source {
  padding: 14px 16px;
  border-radius: 4px;
  background: #fff;
  border: 1px solid var(--line);
}

.flow-source strong,
.flow-node strong,
.metric strong {
  display: block;
  color: var(--text);
  margin-bottom: 2px;
  font-size: 0.9rem;
}

.flow-source,
.flow-node {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.flow-rail {
  position: relative;
  display: grid;
  gap: 10px;
  margin-left: 12px;
  padding-left: 16px;
}

.flow-rail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--line);
}

.flow-rail::after {
  content: "";
  position: absolute;
  left: -3px;
  top: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.flow-node {
  padding: 12px 16px;
  border-radius: 4px;
  background: #fff;
  border: 1px solid var(--line);
}

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

.platform-chip {
  padding: 8px 12px;
  border-radius: 4px;
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
  font-size: 0.85rem;
  color: var(--text);
}

/* --- Sections --- */

.section {
  padding: 0 0 56px;
}

.section-head {
  max-width: 40rem;
  margin-bottom: 20px;
}

.section-head p {
  font-size: 0.92rem;
}

.grid {
  display: grid;
  gap: 12px;
}

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

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

/* --- Cards --- */

.list-card,
.hub-link,
.metric,
.faq-item,
.reason-card {
  padding: 16px 18px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: #fff;
}

.list-card h3,
.reason-card h3 {
  font-size: 0.92rem;
}

.list-card p,
.reason-card p {
  font-size: 0.88rem;
  margin: 0;
}

.list-card ul,
.faq-item ul {
  margin: 0;
  padding-left: 1.1rem;
}

.hub-link {
  display: grid;
  gap: 4px;
  transition: border-color 120ms ease;
}

.hub-link:hover {
  border-color: #999;
}

.hub-link strong {
  color: var(--text);
  font-size: 0.95rem;
}

.hub-link span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --- Reason cards --- */

.reason-card {
  display: grid;
  gap: 4px;
}

.reason-number {
  display: inline-flex;
  width: 24px;
  height: 24px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--text);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
}

/* --- Misc --- */

.metrics {
  display: grid;
  gap: 10px;
}

.metric {
  padding: 14px 16px;
}

.faq-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
}

.section-panel,
.hub-card,
.cta-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 24px;
  box-shadow: none;
  backdrop-filter: none;
}

.cta-panel p {
  margin-bottom: 0;
}

/* --- Header nav --- */

.header-nav {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* --- Trial badge --- */

.trial-panel {
  position: relative;
}

.trial-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--text);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 12px;
}

/* --- FAQ --- */

.faq-item h3 {
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.faq-item p {
  font-size: 0.85rem;
  margin: 0;
}

/* --- Privacy --- */

.privacy-section h2 {
  font-size: 1.1rem;
  margin-top: 28px;
  margin-bottom: 8px;
}

.privacy-section p {
  font-size: 0.9rem;
  line-height: 1.8;
}

/* --- Footer links --- */

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
}

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

/* --- Contact form --- */

.contact-form {
  display: grid;
  gap: 16px;
  margin-top: 20px;
  max-width: 480px;
}

.contact-form label {
  display: grid;
  gap: 4px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.contact-form input,
.contact-form textarea {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: inherit;
  background: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--text);
}

.contact-form .button {
  margin-top: 4px;
  justify-self: start;
}

/* --- Legal table --- */

.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.legal-table th,
.legal-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  width: 160px;
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

.legal-table td {
  color: var(--text-muted);
}

/* --- Footer --- */

.site-footer {
  padding-top: 8px;
}

.footer-row {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* --- Responsive --- */

@media (max-width: 768px) {
  .hero,
  .lp-hero,
  .grid.two,
  .grid.three,
  .faq-grid,
  .flow-platforms {
    grid-template-columns: 1fr;
  }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .page {
    width: calc(100vw - 24px);
  }

  .hero-visual {
    padding: 20px 16px;
  }
}