:root {
  --c-bg: oklch(98.5% 0.002 240);
  --c-surface: oklch(100% 0 0);
  --c-surface-2: oklch(96.5% 0.004 240);
  --c-ink: oklch(20% 0.01 250);
  --c-ink-soft: oklch(45% 0.012 250);
  --c-line: oklch(90% 0.004 250);
  --c-accent: oklch(58% 0.19 250);
  --c-accent-soft: oklch(96% 0.04 250);
  --c-pos: oklch(55% 0.16 145);
  --c-neg: oklch(56% 0.2 25);
  --c-warn: oklch(72% 0.16 75);
  --c-alert: oklch(50% 0.22 25);

  --radius: 16px;
  --radius-sm: 10px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --shadow: 0 1px 2px oklch(20% 0.01 250 / 0.04), 0 8px 24px oklch(20% 0.01 250 / 0.06);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { font-family: var(--font); color: var(--c-ink); background: var(--c-bg); }

body { margin: 0; -webkit-font-smoothing: antialiased; line-height: 1.45; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.5rem; }

/* Header */
.site-header {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
  position: sticky; top: 0; z-index: 10;
}
.header-row { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 1.5rem; gap: 1.5rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 0.85rem; }
.brand-mark { font-size: 1.75rem; color: var(--c-accent); line-height: 1; }
.brand-name { font-size: 1.15rem; font-weight: 700; margin: 0; letter-spacing: -0.02em; }
.brand-sub { margin: 0; font-size: 0.8rem; color: var(--c-ink-soft); letter-spacing: 0.04em; text-transform: uppercase; }

.free-hero {
  display: flex; flex-direction: column; align-items: flex-end;
  padding: 0.6rem 1.1rem; border-radius: var(--radius-sm);
  background: var(--c-accent-soft); border: 1px solid oklch(90% 0.03 250);
}
.free-label { font-size: 0.72rem; color: var(--c-ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }
.free-amount { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.free-perday { font-size: 0.85rem; color: var(--c-accent); font-weight: 600; }

/* Main grid */
.grid-main {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
  padding: 1.5rem 1.5rem 3rem;
}
.span-2 { grid-column: span 2; }

.card {
  background: var(--c-surface); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 1.4rem 1.5rem; box-shadow: var(--shadow);
}
.card h2 { font-size: 0.95rem; font-weight: 700; margin: 0 0 1rem; letter-spacing: -0.01em; }

/* Balance */
.balance-total { display: flex; flex-direction: column; margin-bottom: 1rem; }
.kv-label { font-size: 0.75rem; color: var(--c-ink-soft); text-transform: uppercase; letter-spacing: 0.05em; }
.kv-big { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.accounts { list-style: none; padding: 0; margin: 0 0 0.75rem; }
.accounts li {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 0.75rem;
  padding: 0.5rem 0; border-top: 1px dashed var(--c-line);
  font-size: 0.9rem;
}
.accounts .acc-name { font-weight: 600; }
.accounts .acc-bank { color: var(--c-ink-soft); font-size: 0.78rem; }
.accounts .acc-bal { font-variant-numeric: tabular-nums; font-weight: 700; }
.net-position { padding-top: 0.75rem; border-top: 1px solid var(--c-line); display: flex; justify-content: space-between; }
.kv-val { font-weight: 700; font-variant-numeric: tabular-nums; }

/* Month */
.month-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; margin-bottom: 1rem; }
.metric { display: flex; flex-direction: column; gap: 0.2rem; padding: 0.6rem 0.75rem; background: var(--c-surface-2); border-radius: var(--radius-sm); }
.metric .kv-val { font-size: 1.05rem; }
.pos { color: var(--c-pos); }
.neg { color: var(--c-neg); }
.effect-box { margin-top: 0.5rem; padding: 0.85rem 1rem; background: var(--c-accent-soft); border-radius: var(--radius-sm); }
.effect-title { font-size: 0.78rem; color: var(--c-ink-soft); display: block; }
.effect-total { font-size: 1.25rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.effect-list { list-style: none; padding: 0; margin: 0.45rem 0 0; font-size: 0.82rem; color: var(--c-ink); }

/* PFF table */
.pff-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.9rem; }
.pff-head h2 { margin: 0; }
.period-tag { font-size: 0.75rem; color: var(--c-ink-soft); background: var(--c-surface-2); padding: 0.2rem 0.6rem; border-radius: 999px; }
.pff-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.pff-table th, .pff-table td { text-align: right; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--c-line); font-size: 0.9rem; }
.pff-table th { font-weight: 600; color: var(--c-ink-soft); text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.04em; }
.pff-table th:first-child, .pff-table td:first-child { text-align: left; font-weight: 600; }
.pff-table td.col-plan { color: var(--c-ink-soft); }
.pff-table td.col-forecast { color: var(--c-accent); font-weight: 600; }

/* Attention */
.att-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.65rem; }
.att-item { padding: 0.7rem 0.9rem; border-radius: var(--radius-sm); border-left: 3px solid var(--c-accent); background: var(--c-surface-2); }
.att-item.sev-alert { border-left-color: var(--c-alert); background: oklch(97% 0.03 25); }
.att-item.sev-warn { border-left-color: var(--c-warn); }
.att-item h3 { margin: 0 0 0.2rem; font-size: 0.92rem; font-weight: 700; }
.att-item p { margin: 0; font-size: 0.83rem; color: var(--c-ink-soft); }
.att-item .impact { display: block; margin-top: 0.3rem; font-weight: 700; font-size: 0.82rem; font-variant-numeric: tabular-nums; }
.att-empty { color: var(--c-ink-soft); font-style: italic; font-size: 0.88rem; padding: 0.5rem 0; }

/* Scenario + cashback */
.scn-form { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: flex-end; }
.scn-form label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.78rem; color: var(--c-ink-soft); }
.scn-form input, .scn-form select { padding: 0.55rem 0.6rem; border: 1px solid var(--c-line); border-radius: var(--radius-sm); font-size: 0.9rem; background: var(--c-surface); color: var(--c-ink); }
.btn-primary { background: var(--c-accent); color: white; border: none; padding: 0.6rem 1.2rem; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; font-size: 0.9rem; align-self: flex-end; }
.btn-primary:hover { filter: brightness(1.07); }
.scn-result, .cb-result { margin-top: 1rem; padding: 1rem; background: var(--c-surface-2); border-radius: var(--radius-sm); }
.scn-result.risky { background: oklch(96% 0.04 25); }
.scn-result.tight { background: oklch(97% 0.05 75); }
.verdict { font-weight: 700; font-size: 0.95rem; margin-bottom: 0.4rem; }
.scn-row { display: flex; gap: 1.5rem; flex-wrap: wrap; font-size: 0.85rem; }
.scn-row b { font-variant-numeric: tabular-nums; }

footer.site-footer { border-top: 1px solid var(--c-line); padding: 1.5rem 0; color: var(--c-ink-soft); font-size: 0.8rem; }

@media (max-width: 760px) {
  .grid-main { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
  .month-grid { grid-template-columns: repeat(2, 1fr); }
  .free-hero { align-items: flex-start; width: 100%; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: oklch(16% 0.005 250);
    --c-surface: oklch(20% 0.006 250);
    --c-surface-2: oklch(25% 0.008 250);
    --c-ink: oklch(96% 0.004 250);
    --c-ink-soft: oklch(70% 0.01 250);
    --c-line: oklch(30% 0.008 250);
    --c-accent-soft: oklch(28% 0.05 250);
  }
}