:root {
  color-scheme: light;
  --bg: #f7f7fb;
  --surface: #ffffff;
  --surface-2: #f0f3ff;
  --text: #172033;
  --muted: #5f6c83;
  --border: #dfe4ef;
  --primary: #6554f2;
  --primary-2: #16a085;
  --primary-dark: #4338ca;
  --warning: #9a6200;
  --danger: #b42318;
  --success: #087443;
  --shadow: 0 18px 55px rgba(23, 32, 51, .10);
  --shadow-soft: 0 10px 30px rgba(23, 32, 51, .08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --max: 1180px;
  --focus: 0 0 0 4px rgba(101, 84, 242, .22);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1220;
  --surface: #151c2d;
  --surface-2: #111827;
  --text: #f4f7fb;
  --muted: #b6c0d4;
  --border: #2a3448;
  --primary: #8f83ff;
  --primary-2: #35c7a9;
  --primary-dark: #a9a0ff;
  --warning: #f5b84b;
  --danger: #ff8a80;
  --success: #55d99d;
  --shadow: 0 22px 60px rgba(0, 0, 0, .35);
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, .25);
  --focus: 0 0 0 4px rgba(143, 131, 255, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(101, 84, 242, .18), transparent 38rem),
    radial-gradient(circle at 90% 10%, rgba(22, 160, 133, .16), transparent 28rem),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

body.no-scroll { overflow: hidden; }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--primary-dark); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: none; box-shadow: var(--focus); }
::selection { background: rgba(101, 84, 242, .22); }

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  top: .75rem;
  transform: translateY(-180%);
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: .7rem 1rem;
  border-radius: 999px;
  z-index: 999;
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.stack { display: grid; gap: 1rem; }
.small { font-size: .92rem; color: var(--muted); }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--primary-dark);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  border-radius: 999px;
  padding: .4rem .75rem;
  font-weight: 750;
  font-size: .86rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .32rem .62rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
  font-weight: 700;
  font-size: .8rem;
}
.badge.success { color: var(--success); background: color-mix(in srgb, var(--success) 11%, transparent); border-color: color-mix(in srgb, var(--success) 28%, transparent); }
.badge.warn { color: var(--warning); background: color-mix(in srgb, var(--warning) 13%, transparent); border-color: color-mix(in srgb, var(--warning) 30%, transparent); }
.badge.danger { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, transparent); border-color: color-mix(in srgb, var(--danger) 26%, transparent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-weight: 900;
  letter-spacing: -.02em;
}
.brand img { width: 40px; height: 40px; border-radius: 12px; box-shadow: var(--shadow-soft); }
.nav-links { display: flex; align-items: center; gap: .35rem; flex-wrap: wrap; }
.nav-links a, .nav-links button, .plain-link {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: .62rem .8rem;
  border-radius: 999px;
  font-weight: 750;
}
.nav-links a:hover, .nav-links button:hover, .plain-link:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--primary) 9%, transparent);
}
.theme-toggle { border: 1px solid var(--border) !important; background: var(--surface) !important; color: var(--text) !important; }

.hero {
  padding: 5.5rem 0 3rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}
.hero h1, .page-hero h1 {
  font-size: clamp(2.25rem, 6vw, 5.25rem);
  line-height: .95;
  letter-spacing: -.07em;
  margin: 1rem 0;
}
.hero p, .page-hero p.lead {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--muted);
  max-width: 66ch;
}
.hero-actions, .actions-row { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;
  padding: .78rem 1.05rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 850;
  line-height: 1;
  transition: transform .16s ease, background .16s ease, border-color .16s ease, opacity .16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: white; box-shadow: var(--shadow-soft); }
.btn.secondary { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.danger { background: color-mix(in srgb, var(--danger) 11%, transparent); border-color: color-mix(in srgb, var(--danger) 28%, transparent); color: var(--danger); }
.btn.small-btn { min-height: 36px; padding: .52rem .75rem; font-size: .9rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.hero-card, .card, .tool-panel, .output-panel, .info-card, .faq-item, .table-wrap {
  background: color-mix(in srgb, var(--surface) 93%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.hero-card { padding: 1.25rem; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin-top: 1rem; }
.metric { padding: 1rem; background: var(--surface-2); border-radius: var(--radius-md); border: 1px solid var(--border); }
.metric strong { display: block; font-size: 1.7rem; line-height: 1; letter-spacing: -.04em; }
.metric span { color: var(--muted); font-weight: 700; font-size: .9rem; }
.privacy-list { list-style: none; padding: 0; margin: .7rem 0 0; display: grid; gap: .55rem; }
.privacy-list li { display: flex; gap: .55rem; align-items: flex-start; color: var(--muted); }
.privacy-list li::before { content: "✓"; color: var(--success); font-weight: 900; }

.section { padding: 3rem 0; }
.section-header { margin-bottom: 1.35rem; display: flex; justify-content: space-between; align-items: end; gap: 1rem; flex-wrap: wrap; }
.section-header h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); line-height: 1.05; letter-spacing: -.04em; margin: 0; }
.section-header p { color: var(--muted); max-width: 70ch; margin: .45rem 0 0; }
.searchbar { position: relative; max-width: 720px; }
.searchbar input {
  width: 100%;
  min-height: 56px;
  padding: .95rem 1.1rem .95rem 3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  box-shadow: var(--shadow-soft);
}
.searchbar::before { content: "⌕"; position: absolute; inset-inline-start: 1.1rem; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 1.35rem; z-index: 1; }
.grid { display: grid; gap: 1rem; }
.tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { padding: 1.25rem; display: grid; gap: .9rem; }
.card h3 { margin: 0; font-size: 1.35rem; letter-spacing: -.03em; }
.card p { margin: 0; color: var(--muted); }
.card-meta { display: flex; gap: .5rem; flex-wrap: wrap; }
.card-footer { display: flex; align-items: center; justify-content: space-between; gap: .8rem; flex-wrap: wrap; }
.feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.info-card { padding: 1.25rem; }
.info-card h3, .info-card h2 { margin: 0 0 .5rem; letter-spacing: -.03em; }
.info-card p { margin: 0; color: var(--muted); }
.faq-list { display: grid; gap: .8rem; }
.faq-item { padding: 1rem 1.1rem; }
.faq-item summary { cursor: pointer; font-weight: 850; }
.faq-item p { color: var(--muted); margin-bottom: 0; }
.footer { padding: 3rem 0; border-top: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 62%, transparent); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 2rem; }
.footer a { color: var(--muted); display: inline-flex; padding: .2rem 0; }
.footer a:hover { color: var(--primary-dark); }

.page-hero { padding: 3.8rem 0 2rem; }
.breadcrumbs { display: flex; gap: .55rem; flex-wrap: wrap; color: var(--muted); font-size: .92rem; margin-bottom: .7rem; }
.breadcrumbs a { color: var(--primary-dark); font-weight: 800; }
.tool-layout { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr); gap: 1.2rem; align-items: start; }
.tool-panel, .output-panel { padding: 1.15rem; }
.panel-head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.panel-head h2, .panel-head h3 { margin: 0; letter-spacing: -.03em; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; }
.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.field { display: grid; gap: .38rem; }
.field label { font-weight: 800; font-size: .92rem; }
.field small { color: var(--muted); }
input, select, textarea {
  width: 100%;
  min-height: 42px;
  padding: .72rem .8rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
}
textarea { min-height: 94px; resize: vertical; }
.row-list { display: grid; gap: .75rem; }
.dynamic-row {
  display: grid;
  gap: .65rem;
  align-items: end;
  padding: .8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-2);
}
.child-row { grid-template-columns: 1.2fr .65fr .85fr .85fr .75fr auto; }
.chore-row { grid-template-columns: 1.2fr .65fr .8fr auto; }
.allowance-child-row { grid-template-columns: 1.2fr .65fr .9fr auto; }
.notice {
  border: 1px solid color-mix(in srgb, var(--primary) 25%, var(--border));
  background: color-mix(in srgb, var(--primary) 9%, transparent);
  border-radius: var(--radius-md);
  padding: .9rem 1rem;
  color: var(--muted);
}
.notice strong { color: var(--text); }
.notice.warning { border-color: color-mix(in srgb, var(--warning) 35%, var(--border)); background: color-mix(in srgb, var(--warning) 10%, transparent); }
.notice.danger { border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); background: color-mix(in srgb, var(--danger) 8%, transparent); }
.output-empty {
  display: grid;
  place-items: center;
  min-height: 260px;
  color: var(--muted);
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: var(--surface-2);
}
.result-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .7rem;
  margin-bottom: .9rem;
}
.result-card {
  padding: .85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-2);
}
.result-card strong { display: block; font-size: 1.35rem; letter-spacing: -.04em; }
.result-card span { display: block; color: var(--muted); font-size: .84rem; font-weight: 750; }
.table-wrap { overflow: auto; box-shadow: none; }
table { width: 100%; border-collapse: collapse; min-width: 620px; }
th, td { padding: .72rem .78rem; border-bottom: 1px solid var(--border); text-align: start; vertical-align: top; }
th { font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
.pill-list { display: flex; gap: .5rem; flex-wrap: wrap; }
.tool-description-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.related-nav { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.timer-display {
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1;
  letter-spacing: -.06em;
  text-align: center;
  padding: 1rem;
}
.progress-shell { height: 12px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--primary), var(--primary-2)); transition: width .25s ease; }
.chart-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1rem; background: var(--surface); margin-bottom: 1rem; }
.chart-card h3 { margin: 0 0 .25rem; }
.checkbox-cell { text-align: center; }
.checkbox-cell input { min-height: auto; width: 20px; height: 20px; accent-color: var(--primary); }
.export-note { white-space: pre-wrap; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-md); padding: .9rem; color: var(--muted); }
.sponsor-slot {
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
  background: color-mix(in srgb, var(--surface-2) 78%, transparent);
  color: var(--muted);
}

[dir="rtl"] body, body[dir="rtl"] { font-family: ui-sans-serif, system-ui, "Segoe UI", Tahoma, Arial, sans-serif; }
[dir="rtl"] .searchbar input { padding-inline: 3rem 1.1rem; }

@media (max-width: 900px) {
  .hero-grid, .tool-layout, .footer-grid { grid-template-columns: 1fr; }
  .feature-grid, .tool-description-grid { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: 1fr; }
  .nav { align-items: flex-start; padding: .8rem 0; }
  .nav-links { justify-content: flex-end; }
  .child-row, .chore-row, .allowance-child-row, .form-grid, .form-grid.three { grid-template-columns: 1fr; }
  .result-summary { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 1rem), var(--max)); }
  .hero { padding-top: 3rem; }
  .nav { min-height: auto; }
  .brand span { max-width: 160px; }
  .nav-links a:not(.keep-mobile) { display: none; }
  .hero-actions .btn, .actions-row .btn { width: 100%; }
  .card-footer { align-items: stretch; }
  .card-footer .btn { width: 100%; }
}

@media print {
  :root { --text: #111827; --muted: #374151; --border: #d1d5db; --surface: #fff; --surface-2: #f9fafb; }
  body { background: #fff !important; color: #111827; }
  .site-header, .footer, .no-print, .hero-actions, .actions-row.no-print, .tool-panel, .breadcrumbs, .sponsor-slot, .related-nav { display: none !important; }
  .section, .page-hero { padding: .5rem 0; }
  .container { width: 100%; }
  .tool-layout { display: block; }
  .output-panel, .card, .info-card, .chart-card, .table-wrap { box-shadow: none !important; border-color: #d1d5db; break-inside: avoid; }
  table { min-width: 0; font-size: 11px; }
  th, td { padding: .35rem .4rem; }
  a { color: #111827; }
  .print-title { display: block !important; }
}