:root {
  --bg: #f5efe6;
  --bg-strong: #efe4d3;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(17, 32, 49, 0.1);
  --line-strong: rgba(17, 32, 49, 0.18);
  --text: #142334;
  --muted: #5b6675;
  --primary: #0f9d8b;
  --primary-strong: #0c7d70;
  --secondary: #ff8c42;
  --accent: #dff6ee;
  --shadow: 0 24px 60px rgba(20, 35, 52, 0.12);
  --shadow-soft: 0 14px 32px rgba(20, 35, 52, 0.08);
  --radius: 28px;
  --radius-sm: 18px;
  --maxw: 1180px;
  --font-body: "Noto Sans JP", sans-serif;
  --font-display: "Sora", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 157, 139, 0.18), transparent 32%),
    radial-gradient(circle at 85% 10%, rgba(255, 140, 66, 0.18), transparent 28%),
    linear-gradient(180deg, #f9f4ec 0%, var(--bg) 52%, #f3ebdf 100%);
  line-height: 1.7;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

ul {
  margin: 0;
  padding-left: 1.15rem;
}

.page-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.25;
  background-image:
    linear-gradient(rgba(17, 32, 49, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 32, 49, 0.018) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(circle at center, black 55%, transparent 100%);
}

.container {
  width: min(92%, var(--maxw));
  margin-inline: auto;
}

.section {
  padding: 96px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary-strong);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.display,
.section-title,
.brand-name,
.nav a,
.btn,
.metric-card strong,
.timeline-item strong,
.trust-card strong,
.feature-card h3,
.usecase-card h3,
.workflow-step h3,
.info-panel h3,
.cta-inner h2,
.log-sample-head strong {
  font-family: var(--font-display);
}

.display {
  margin: 0 0 20px;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.section-copy,
.lead,
.cta-inner p,
.trust-card p,
.feature-card p,
.usecase-card p,
.workflow-step p,
.info-panel p,
.log-sample-head p {
  color: var(--muted);
}

.lead {
  margin: 0;
  max-width: 660px;
  font-size: 1.08rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 18px 0;
  background: rgba(249, 244, 236, 0.7);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(17, 32, 49, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  box-shadow: 0 10px 22px rgba(17, 32, 49, 0.14);
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease, transform 0.2s ease;
}

.nav a:hover {
  color: var(--primary-strong);
  transform: translateY(-1px);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border: 1px solid rgba(17, 32, 49, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow-soft);
}

.lang-switch a {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.lang-switch a.is-active {
  color: #fffaf3;
  background: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fdf9f3;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 16px 30px rgba(15, 157, 139, 0.24);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.5);
  border-color: rgba(17, 32, 49, 0.12);
}

.btn-lg {
  min-height: 54px;
  padding-inline: 26px;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(17, 32, 49, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.65);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
}

.hero {
  padding-top: 72px;
}

.hero-grid,
.showcase-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 36px;
  align-items: center;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-points {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  color: var(--muted);
}

.hero-points li::marker {
  color: var(--primary);
}

.hero-visual {
  position: relative;
}

.visual-frame {
  position: relative;
  padding: 18px;
  border-radius: calc(var(--radius) + 6px);
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.58)),
    linear-gradient(135deg, rgba(15, 157, 139, 0.18), rgba(255, 140, 66, 0.14));
  border: 1px solid rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.visual-panel,
.trust-card,
.feature-card,
.usecase-card,
.workflow-step,
.info-panel,
.log-sample-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-soft);
}

.hero-dashboard {
  padding: 22px;
}

.dashboard-top,
.timeline-head,
.log-sample-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.dashboard-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.dashboard-logo {
  width: 52px;
  height: 52px;
  border-radius: 18px;
}

.dashboard-title strong,
.timeline-head strong {
  display: block;
  font-size: 1rem;
}

.dashboard-title span,
.timeline-head span {
  color: var(--muted);
  font-size: 0.92rem;
}

.status-pill,
.panel-kicker,
.log-summary span,
.log-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.status-pill {
  padding: 8px 12px;
  color: var(--primary-strong);
  background: rgba(15, 157, 139, 0.12);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.metric-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(17, 32, 49, 0.08);
}

.metric-card.accent {
  background: linear-gradient(180deg, rgba(255, 140, 66, 0.14), rgba(255, 255, 255, 0.88));
}

.metric-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.8rem;
}

.metric-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.16rem;
  letter-spacing: -0.03em;
}

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

.timeline-card {
  margin-top: 18px;
  padding: 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(223, 246, 238, 0.9), rgba(255, 255, 255, 0.78));
  border: 1px solid rgba(15, 157, 139, 0.16);
}

.timeline-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  align-items: start;
}

.timeline-time {
  padding-top: 2px;
  color: var(--primary-strong);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
}

.timeline-item p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.floating-note {
  position: absolute;
  right: -12px;
  bottom: 28px;
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(135deg, #1d2b3d, #26405c);
  color: #f6f8fb;
  box-shadow: 0 18px 38px rgba(20, 35, 52, 0.22);
}

.floating-note span {
  display: block;
  margin-bottom: 4px;
  color: rgba(246, 248, 251, 0.72);
  font-size: 0.82rem;
}

.trust-band {
  padding-top: 12px;
}

.trust-grid,
.feature-grid,
.usecase-grid,
.workflow-grid {
  display: grid;
  gap: 20px;
}

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

.trust-card,
.feature-card,
.usecase-card,
.workflow-step {
  padding: 26px;
}

.trust-card span,
.feature-icon,
.workflow-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 48px;
  height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--primary-strong);
  background: rgba(15, 157, 139, 0.1);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
}

.trust-card strong,
.feature-card h3,
.usecase-card h3,
.workflow-step h3,
.info-panel h3 {
  display: block;
  margin: 18px 0 10px;
  font-size: 1.28rem;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

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

.showcase {
  overflow: hidden;
}

.showcase-stats {
  display: flex;
  gap: 18px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.showcase-stats div {
  min-width: 140px;
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(17, 32, 49, 0.08);
}

.showcase-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.04em;
}

.showcase-stats span {
  color: var(--muted);
  font-size: 0.9rem;
}

.showcase-panels {
  display: grid;
  gap: 18px;
}

.info-panel {
  padding: 28px;
}

.info-panel.warm {
  background:
    linear-gradient(180deg, rgba(255, 140, 66, 0.1), rgba(255, 255, 255, 0.82)),
    rgba(255, 255, 255, 0.78);
}

.panel-kicker {
  min-height: 34px;
  padding: 0 14px;
  color: var(--secondary);
  background: rgba(255, 140, 66, 0.12);
}

.usecase-card ul {
  margin-top: 16px;
  color: var(--muted);
}

.workflow {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0));
}

.workflow-step {
  position: relative;
  overflow: hidden;
}

.workflow-step::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% 55%;
  height: 120px;
  background: radial-gradient(circle, rgba(15, 157, 139, 0.14), transparent 70%);
}

.log-sample-card {
  padding: 22px;
}

.log-sample-head {
  margin-bottom: 18px;
}

.log-sample-head p {
  margin: 4px 0 0;
}

.log-summary {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.log-summary span {
  min-height: 34px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(17, 32, 49, 0.06);
}

.csv-table-wrapper {
  overflow: auto;
  border-radius: 24px;
  border: 1px solid rgba(17, 32, 49, 0.08);
  background: rgba(255, 255, 255, 0.84);
}

.csv-table {
  width: 100%;
  min-width: 900px;
  border-collapse: separate;
  border-spacing: 0;
}

.csv-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 16px 18px;
  text-align: left;
  background: #fffaf4;
  border-bottom: 1px solid rgba(17, 32, 49, 0.1);
  color: var(--text);
  font-size: 0.84rem;
}

.csv-table tbody td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(17, 32, 49, 0.08);
  color: var(--muted);
  font-size: 0.92rem;
  vertical-align: top;
}

.csv-table tbody tr:hover td {
  background: rgba(223, 246, 238, 0.42);
}

.csv-table td.is-strong {
  color: var(--text);
  font-weight: 600;
}

.log-badge {
  min-height: 30px;
  padding: 0 12px;
  color: var(--primary-strong);
  background: rgba(15, 157, 139, 0.12);
}

.log-badge.web {
  color: #215cce;
  background: rgba(33, 92, 206, 0.1);
}

.log-badge.file {
  color: #9a5318;
  background: rgba(255, 140, 66, 0.14);
}

.log-badge.meeting {
  color: #7b45cc;
  background: rgba(123, 69, 204, 0.12);
}

.cta-band {
  padding-top: 40px;
}

.cta-inner {
  padding: 44px;
  text-align: center;
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(circle at top left, rgba(15, 157, 139, 0.14), transparent 34%),
    radial-gradient(circle at bottom right, rgba(255, 140, 66, 0.16), transparent 28%),
    rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(17, 32, 49, 0.08);
  box-shadow: var(--shadow-soft);
}

.cta-inner h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.cta-inner p {
  max-width: 700px;
  margin: 0 auto;
}

.site-footer {
  padding: 32px 0 48px;
}

.foot-inner {
  display: flex;
  justify-content: center;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 1100px) {
  .hero-grid,
  .showcase-grid,
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature-grid .feature-card:last-child {
    grid-column: span 2;
  }
}

@media (max-width: 960px) {
  .section {
    padding: 82px 0;
  }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    display: none;
    min-width: 240px;
    padding: 14px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(17, 32, 49, 0.08);
    box-shadow: var(--shadow-soft);
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .nav.open {
    display: flex;
  }

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

  .header-actions {
    gap: 10px;
  }

  .lang-switch a {
    padding-inline: 10px;
  }

  .hero-grid,
  .showcase-grid,
  .feature-grid,
  .trust-grid,
  .usecase-grid,
  .workflow-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .feature-grid .feature-card:last-child {
    grid-column: auto;
  }

  .floating-note {
    position: static;
    margin-top: 14px;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 14px 0;
  }

  .header-inner {
    gap: 12px;
  }

  .lang-switch a {
    padding: 7px 10px;
    font-size: 0.72rem;
  }

  .display {
    font-size: clamp(2.4rem, 12vw, 3.4rem);
  }

  .hero-actions,
  .showcase-stats,
  .log-sample-head,
  .dashboard-top,
  .timeline-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn-lg {
    width: 100%;
  }

  .hero-dashboard,
  .trust-card,
  .feature-card,
  .usecase-card,
  .workflow-step,
  .info-panel,
  .log-sample-card,
  .cta-inner {
    padding: 20px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}