:root {
  --primary: #005387;
  --primary-dark: #003A5F;
  --primary-mid: #0B6AA1;
  --primary-light: #D6EAF6;
  --text: #0F172A;
  --muted: #5B6472;
  --line: #D9E2EC;
  --surface: #FFFFFF;
  --surface-soft: #F7FAFC;
  --success: #0F766E;
  --warning: #B45309;
  --danger: #B91C1C;
  --shadow: 0 16px 40px rgba(0, 58, 95, 0.10);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(214, 234, 246, 0.65), transparent 30%),
    linear-gradient(180deg, #F9FBFD 0%, #F4F8FB 100%);
}

button, input, select { font: inherit; }
button { cursor: pointer; }

.page-shell {
  max-width: 1380px;
  margin: 0 auto;
  padding: 32px 18px 48px;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(0, 83, 135, 0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.site-header {
  padding: 24px 28px;
  margin-bottom: 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.brand-wrap {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.brand-logo {
  width: 170px;
  max-width: 32vw;
  height: auto;
  object-fit: contain;
}

.eyebrow, .section-kicker {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin: 0; }
h1 { margin-top: 10px; font-size: clamp(2rem, 3vw, 3rem); line-height: 1.08; }
h2 { margin-top: 12px; font-size: 1.5rem; }
h3 { font-size: 1rem; margin-bottom: 10px; }
.subline { margin-top: 12px; max-width: 820px; color: var(--muted); line-height: 1.6; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch { display: flex; flex-direction: column; gap: 8px; font-size: 0.95rem; color: var(--muted); }
.lang-switch select {
  border: 1px solid var(--line);
  background: #fff;
  min-width: 92px;
  border-radius: 14px;
  padding: 10px 12px;
}

.main-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 24px;
}

.generator-panel, .results-panel, .history-panel { padding: 24px; }
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.field-grid {
  display: grid;
  gap: 16px;
  margin-bottom: 18px;
}
.field-grid.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.field { display: flex; flex-direction: column; gap: 10px; }
.field > span { font-weight: 600; font-size: 0.98rem; }
.field input[type="text"],
.field input[type="number"],
.field select {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  background: #fff;
  color: var(--text);
}
.range-combo {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 14px;
  align-items: center;
}
input[type="range"] { width: 100%; accent-color: var(--primary); }

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.checkbox-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
  font-weight: 500;
}
.checkbox-pill input { accent-color: var(--primary); }

.info-box {
  padding: 14px 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, #F7FBFF 0%, #EEF6FB 100%);
  border: 1px solid rgba(11, 106, 161, 0.18);
  color: var(--primary-dark);
  line-height: 1.55;
}

.action-row, .result-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.primary-button, .secondary-button, .ghost-button {
  border: 0;
  padding: 13px 18px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.primary-button {
  background: linear-gradient(180deg, var(--primary-mid) 0%, var(--primary) 100%);
  color: #fff;
  box-shadow: 0 12px 24px rgba(0, 83, 135, 0.2);
}
.secondary-button {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.ghost-button {
  background: #fff;
  color: var(--primary-dark);
  border: 1px solid var(--line);
}
.primary-button:hover, .secondary-button:hover, .ghost-button:hover { transform: translateY(-1px); }

.badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  font-weight: 700;
  color: var(--muted);
}

.results-list, .history-list {
  display: grid;
  gap: 14px;
}
.password-item, .history-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, #FFFFFF 0%, #FAFCFE 100%);
}
.password-top {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.password-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}
.password-output {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.02rem;
  word-break: break-all;
  padding: 14px 16px;
  border-radius: 14px;
  background: #F7FAFD;
  border: 1px solid rgba(0, 83, 135, 0.10);
}
.password-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}
.inline-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 600;
}

.strength-card, .mini-card, .qr-card {
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}
.strength-line {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.strength-meter {
  height: 12px;
  width: 100%;
  overflow: hidden;
  border-radius: 999px;
  background: #E8EEF5;
}
#strengthBar {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #F59E0B 0%, #0B6AA1 100%);
  transition: width 0.25s ease;
}
.hint { color: var(--muted); line-height: 1.6; margin-top: 10px; }
.advice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.mini-card ul, #usageNotes, #reportMeta { margin: 0; padding-left: 18px; color: var(--muted); line-height: 1.65; }
.qr-card { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
#qrCode {
  min-width: 124px;
  min-height: 124px;
  padding: 10px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
}
.history-item strong { display: block; margin-bottom: 8px; }
.history-item .muted { color: var(--muted); font-size: 0.93rem; }

.empty-state {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #FBFDFF 0%, #F3F8FC 100%);
  border: 1px dashed rgba(0, 83, 135, 0.20);
  color: var(--muted);
  line-height: 1.6;
}
.hidden-password { filter: blur(8px); user-select: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

@media (max-width: 1080px) {
  .main-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-header, .brand-wrap, .qr-card, .section-head { flex-direction: column; }
  .field-grid.two-col, .option-grid, .advice-grid { grid-template-columns: 1fr; }
  .range-combo { grid-template-columns: 1fr; }
  .brand-logo { width: 140px; }
}

.transfer-code {
  display: grid;
  gap: 10px;
  width: 100%;
}
.transfer-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  max-width: 240px;
}
.transfer-cell {
  aspect-ratio: 1;
  border-radius: 3px;
  background: #D6EAF6;
  border: 1px solid rgba(0,83,135,.08);
}
.transfer-cell.is-on {
  background: #005387;
}
.transfer-caption {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .84rem;
  color: var(--muted);
  word-break: break-all;
}