:root {
  --navy: #0b1d33;
  --navy-2: #122b4a;
  --blue: #1d6fe0;
  --blue-light: #e8f1fd;
  --teal: #0fb5a3;
  --amber: #e8972b;
  --red: #e2493d;
  --ink: #1a2433;
  --ink-soft: #5b6b7f;
  --line: #e4e9f0;
  --bg: #ffffff;
  --bg-soft: #f6f9fc;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(11, 29, 51, 0.08);
  --font: 'Noto Sans JP', sans-serif;
  --font-num: 'Space Grotesk', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

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

i[data-lucide] { width: 1em; height: 1em; stroke-width: 2; }

/* ribbon */
.ribbon {
  background: var(--navy);
  color: #cfe0f5;
  font-size: 13px;
  text-align: center;
  padding: 9px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.ribbon i { color: var(--teal); flex-shrink: 0; }
.ribbon strong { color: #fff; }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); }
.logo-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
}
.logo-text { font-weight: 700; font-size: 18px; letter-spacing: 0.02em; }
.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--blue); }
.nav-cta {
  background: var(--navy);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: 999px;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), #1557b3);
  color: #fff;
  box-shadow: 0 8px 20px rgba(29,111,224,0.35);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-wide { width: 100%; justify-content: center; margin-top: 22px; }

/* eyebrow / headings */
.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-light);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
h1, h2, h3, h4 { font-weight: 900; letter-spacing: -0.01em; color: var(--navy); }
h1 { font-size: 42px; line-height: 1.35; }
h2 { font-size: 30px; line-height: 1.4; }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head h2 { margin-bottom: 4px; }
.section-sub { color: var(--ink-soft); margin-top: 10px; font-size: 15px; }
.text-white { color: #fff; }

/* hero */
.hero { padding: 64px 0 90px; background: linear-gradient(180deg, #f8fbff, #fff); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero-lead { color: var(--ink-soft); font-size: 16.5px; margin: 20px 0 30px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; margin-bottom: 44px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--font-num); font-size: 30px; font-weight: 700; color: var(--navy); }
.stat-num small { font-size: 14px; font-weight: 500; color: var(--ink-soft); margin-left: 2px; }
.stat-label { font-size: 12.5px; color: var(--ink-soft); max-width: 140px; margin-top: 2px; }

.hero-visual { position: relative; }
.hero-img { border-radius: 20px; box-shadow: var(--shadow); width: 100%; aspect-ratio: 4/3.3; object-fit: cover; }
.floating-card {
  position: absolute;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 14px 34px rgba(11,29,51,0.18);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  max-width: 220px;
}
.floating-card i { font-size: 22px; color: var(--blue); flex-shrink: 0; }
.floating-card strong { display: block; font-size: 13.5px; color: var(--navy); }
.floating-card span { color: var(--ink-soft); font-size: 12px; }
.card-top { top: -18px; left: -18px; }
.card-bottom { bottom: -20px; right: -16px; }
.card-bottom i { color: var(--amber); }

/* sections */
.section { padding: 86px 0; }
.section-light { background: var(--bg-soft); }
.section-dark { background: var(--navy); }
.section-dark .eyebrow { background: rgba(255,255,255,0.1); color: #8fc2ff; }
.section-dark .section-sub { color: #aebed6; }

/* issues */
.issue-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.issue-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.issue-icon {
  width: 46px; height: 46px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}
.issue-card h3 { font-size: 17px; margin-bottom: 8px; }
.issue-card p { color: var(--ink-soft); font-size: 14.5px; }

/* flow */
.flow-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.flow-step {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 22px 18px;
  position: relative;
}
.flow-step i { color: var(--teal); font-size: 24px; margin: 8px 0 10px; display: block; }
.flow-num { font-family: var(--font-num); color: rgba(255,255,255,0.3); font-size: 13px; font-weight: 700; }
.flow-step h4 { color: #fff; font-size: 15.5px; margin-bottom: 6px; }
.flow-step p { color: #aebed6; font-size: 13px; }

/* demo */
.demo-panel {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 32px;
}
.demo-sources { display: flex; align-items: center; gap: 18px; margin-bottom: 4px; }
.source-card {
  flex: 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.source-card i { color: var(--blue); font-size: 22px; }
.source-card strong { display: block; font-size: 14.5px; }
.source-card span { color: var(--ink-soft); font-size: 12.5px; }
.tag { margin-left: auto; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.tag-blue { background: var(--blue-light); color: var(--blue); }
.demo-vs { color: var(--ink-soft); font-size: 18px; flex-shrink: 0; }

.scanning-bar {
  margin-top: 20px;
  height: 36px;
  border-radius: 999px;
  background: #e9eef5;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scanning-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  width: 0%;
  transition: width 1.6s ease;
}
.scanning-bar span {
  position: relative;
  z-index: 1;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
  mix-blend-mode: difference;
  color: #fff;
}

.result-wrap { margin-top: 26px; }
.result-summary { display: flex; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.summary-pill {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700;
  padding: 7px 14px; border-radius: 999px;
}
.summary-pill.ok { background: #e4f7ee; color: #1a9b5c; }
.summary-pill.warn { background: #fdefe2; color: var(--amber); }
.summary-pill.muted { background: #eef1f5; color: var(--ink-soft); }

.table-scroll { overflow-x: auto; border-radius: 12px; border: 1px solid var(--line); }
.diff-table { width: 100%; border-collapse: collapse; background: #fff; font-size: 13.5px; }
.diff-table th {
  text-align: left;
  background: #fff;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.diff-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.diff-table tr:last-child td { border-bottom: none; }
.diff-table td.diff-cell { background: #fdeceb; color: var(--red); font-weight: 700; border-radius: 6px; }
.row-ok td:first-child { border-left: 3px solid #1a9b5c; }
.row-warn td:first-child { border-left: 3px solid var(--red); }
.badge-ok, .badge-warn {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.badge-ok { background: #e4f7ee; color: #1a9b5c; }
.badge-warn { background: #fdeceb; color: var(--red); }

/* features */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.feature-card i { font-size: 26px; color: var(--teal); margin-bottom: 14px; display: block; }
.feature-card h4 { font-size: 16px; margin-bottom: 8px; }
.feature-card p { color: var(--ink-soft); font-size: 14px; }

/* onboarding */
.onboard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.onboard-card { padding: 28px; border-radius: var(--radius); background: var(--blue-light); }
.onboard-step { font-family: var(--font-num); font-size: 12.5px; font-weight: 700; color: var(--blue); }
.onboard-card h4 { font-size: 16.5px; margin: 10px 0 8px; }
.onboard-card p { color: var(--ink-soft); font-size: 14px; }

/* contact */
.contact-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
.contact-img { border-radius: 18px; width: 100%; aspect-ratio: 4/3.4; object-fit: cover; }
.contact-lead { color: #c3d2e6; margin: 18px 0 28px; max-width: 520px; }

/* footer */
.site-footer { background: #081322; padding: 22px 0; }
.footer-inner { color: #6c7f99; font-size: 12.5px; text-align: center; }

/* responsive */
@media (max-width: 880px) {
  .main-nav { display: none; }
  h1 { font-size: 30px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .floating-card { display: none; }
  .issue-grid, .feature-grid, .onboard-grid { grid-template-columns: 1fr; }
  .flow-track { grid-template-columns: repeat(2, 1fr); }
  .demo-sources { flex-direction: column; }
  .demo-vs { transform: rotate(90deg); }
  .contact-inner { grid-template-columns: 1fr; }
  .hero-stats { gap: 22px; }
}