@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&family=DM+Mono:wght@500&display=swap');

:root {
  --ink: #14161f;
  --ink-soft: #4a4e5d;
  --paper: #fbfaf8;
  --paper-raised: #ffffff;
  --line: #e6e3dd;
  --accent: #2f3ed6;
  --accent-soft: #eef0ff;
  --good: #147a53;
  --warn: #b4570a;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: 'DM Mono', monospace; }

a { color: inherit; }
img { max-width: 100%; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- header ---- */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--paper-raised);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -0.02em;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); display: inline-block; }
nav.site-nav { display: flex; gap: 28px; font-size: 14px; font-weight: 500; }
nav.site-nav a { text-decoration: none; color: var(--ink-soft); }
nav.site-nav a:hover { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 11px 22px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--accent); }
.btn-outline { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--ink); }
.btn-accent { background: var(--accent); color: #fff; }

/* ---- hero ---- */
.hero { padding: 88px 0 64px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.preview-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 24px 60px -24px rgba(20, 22, 31, 0.25);
  overflow: hidden;
}
.preview-chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #f4f2ee;
}
.preview-chrome .dot-sm { width: 9px; height: 9px; border-radius: 50%; background: #d8d4cc; flex: none; display: inline-block; }
.preview-chrome .url {
  margin-left: 10px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--ink-soft);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preview-body { padding: 20px; }
.preview-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.preview-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.preview-table th {
  text-align: left;
  font-size: 11px;
  color: var(--ink-soft);
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
}
.preview-table td { padding: 9px 8px; border-bottom: 1px solid var(--line); }
.preview-table tr:last-child td { border-bottom: none; }
.preview-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}
.preview-tag.good { background: #e6f4ee; color: var(--good); }
.preview-tag.warn { background: #fdf1e6; color: var(--warn); }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
h1.headline {
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin: 0 0 20px;
  text-wrap: balance;
}
.headline em { font-style: normal; color: var(--accent); }
.lede { font-size: 17px; color: var(--ink-soft); max-width: 560px; margin: 0 0 34px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---- feature grid ---- */
section { padding: 64px 0; }
h2.section-title {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.section-sub { color: var(--ink-soft); margin: 0 0 40px; font-size: 15px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 720px) { .feature-grid { grid-template-columns: 1fr; } }

.feature-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.feature-num {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 12px;
  display: block;
}
.feature-card h3 { font-size: 17px; margin: 0 0 8px; letter-spacing: -0.01em; }
.feature-card p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* ---- flow (4-tool combined cycle) ---- */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  align-items: stretch;
  margin-bottom: 28px;
}
@media (max-width: 860px) { .flow-grid { grid-template-columns: 1fr; gap: 16px; } }

.flow-step {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
  position: relative;
}
.flow-grid .flow-step:not(:first-child) { margin-left: 16px; }
@media (max-width: 860px) { .flow-grid .flow-step:not(:first-child) { margin-left: 0; } }

.flow-arrow {
  display: none;
  position: absolute;
  right: -28px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--line);
  font-size: 20px;
  z-index: 1;
}
@media (min-width: 861px) { .flow-grid .flow-step:not(:last-child) .flow-arrow { display: block; } }

.flow-q {
  font-size: 12px;
  font-weight: 700;
  color: var(--warn);
  margin: 0 0 10px;
}
.flow-step h3 { font-size: 15px; margin: 0 0 6px; letter-spacing: -0.01em; }
.flow-step p { font-size: 13px; color: var(--ink-soft); margin: 0; }
.flow-note {
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 14px 20px;
}

/* ---- steps ---- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step-num {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--ink); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; margin-bottom: 16px;
}
.step h3 { font-size: 16px; margin: 0 0 6px; }
.step p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* ---- pricing ---- */
.price-card {
  background: var(--ink);
  color: #fff;
  border-radius: 20px;
  padding: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.price-card .amount { font-size: 42px; font-weight: 900; letter-spacing: -0.02em; }
.price-card .amount span { font-size: 16px; font-weight: 500; opacity: 0.7; }
.price-card ul { list-style: none; padding: 0; margin: 14px 0 0; font-size: 14px; opacity: 0.85; }
.price-card li { padding: 3px 0; }
.price-card .btn-accent { background: #fff; color: var(--ink); }
.price-card .btn-accent:hover { background: var(--accent-soft); }

.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 720px; }
.faq-item {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 26px;
}
.faq-item h3 { font-size: 15px; margin: 0 0 8px; }
.faq-item p { font-size: 14px; color: var(--ink-soft); margin: 0; }

footer.site {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  color: var(--ink-soft);
  font-size: 13px;
}

/* ---- app page ---- */
.app-shell { padding: 48px 0 80px; }
.gate {
  max-width: 420px;
  margin: 80px auto;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
}
.gate h2 { font-size: 20px; margin: 0 0 8px; }
.gate p { color: var(--ink-soft); font-size: 14px; margin: 0 0 22px; }
.gate input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 12px;
  font-family: 'DM Mono', monospace;
}
.gate .error { color: #c22; font-size: 13px; margin-top: 10px; }
.gate .buy-hint { margin-top: 18px; font-size: 13px; }

.trial-banner {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}
.trial-banner.info { background: var(--accent-soft); color: var(--accent); }
.trial-banner.warn { background: #fdf1e6; color: var(--warn); }
.trial-banner a { text-decoration: underline; }

.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 28px; flex-wrap: wrap; }
.tab-btn {
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-soft);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.tab-btn.active { color: var(--ink); border-bottom-color: var(--accent); }

.tool-panel { display: none; }
.tool-panel.active { display: block; }
.tool-panel h2 { font-size: 20px; margin: 0 0 6px; }
.tool-panel .desc { color: var(--ink-soft); font-size: 14px; margin: 0 0 20px; }

.input-row { display: flex; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
.input-row input[type="text"] {
  flex: 1;
  min-width: 220px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
}
.input-row select {
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14px;
  background: #fff;
}

table.results {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
table.results th, table.results td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
table.results th { color: var(--ink-soft); font-weight: 700; font-size: 12px; }
table.results tbody tr:hover { background: var(--accent-soft); }
.tag-good { color: var(--good); font-weight: 700; }
.tag-warn { color: var(--warn); font-weight: 700; }

.status-msg { font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }

/* ---- history tab ---- */
.history-item {
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
}
.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  background: var(--paper-raised);
}
.history-head:hover { background: var(--accent-soft); }
.history-endpoint { font-weight: 700; font-size: 13px; }
.history-meta { font-size: 12px; color: var(--ink-soft); }
.history-body {
  display: none;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
}
.history-item.open .history-body { display: block; }
.history-body pre {
  white-space: pre-wrap;
  word-break: break-all;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--ink-soft);
  margin: 0;
}
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }