:root {
  color-scheme: light dark;
  --bg: #f5f7f4;
  --surface: #ffffff;
  --surface-strong: #edf3ea;
  --text: #172015;
  --muted: #5f6d5b;
  --line: #dbe4d7;
  --accent: #2f6f4e;
  --accent-strong: #24563d;
  --danger: #a04438;
  --danger-soft: #fff0ed;
  --shadow: 0 24px 70px rgb(33 51 30 / 0.11);
  --radius: 22px;
  --radius-small: 14px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111710;
    --surface: #182117;
    --surface-strong: #21301f;
    --text: #eef5eb;
    --muted: #b4c0af;
    --line: #31412e;
    --accent: #8fd19e;
    --accent-strong: #b6e4be;
    --danger: #efaa9f;
    --danger-soft: #3b211e;
    --shadow: 0 24px 70px rgb(0 0 0 / 0.32);
  }
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(circle at top left, rgb(143 209 158 / 0.24), transparent 34rem),
    linear-gradient(135deg, var(--bg), var(--surface-strong));
  color: var(--text);
}
button, input, select { font: inherit; }
button { cursor: pointer; }

.shell {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.hero {
  min-height: min(52dvh, 560px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
}

.kicker {
  margin: 0 0 16px;
  color: var(--accent-strong);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1, h2, p { margin-top: 0; }
h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2.4rem, 7vw, 6.2rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
}
h2 {
  margin-bottom: 8px;
  font-size: clamp(1.3rem, 2.6vw, 2.1rem);
  letter-spacing: -0.045em;
}
.intro {
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
  line-height: 1.6;
}
.save-status {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}
.save-status.ok { color: var(--accent); }
.save-status.error { color: var(--danger); }

.hero-actions,
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

.button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 11px 16px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 6px 18px rgb(35 49 30 / 0.08);
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
  text-decoration: none;
  white-space: nowrap;
}
.button:hover { transform: translateY(-1px); border-color: var(--accent); }
.button:active { transform: translateY(1px); }
.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
@media (prefers-color-scheme: dark) {
  .button.primary { color: #10170f; }
}
.button.danger {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 38%, transparent);
}
.button.small { padding: 9px 13px; }
.file-button { display: inline-flex; align-items: center; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.summary-card,
.panel {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.summary-card {
  padding: 22px;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.summary-card span,
.summary-card small,
.panel p,
.expense-row span {
  color: var(--muted);
}
.summary-card strong {
  display: block;
  margin: 10px 0;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.06em;
}
.summary-card.highlight {
  background: linear-gradient(145deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--surface)));
  color: #fff;
}
.summary-card.highlight span,
.summary-card.highlight small { color: rgb(255 255 255 / 0.82); }
@media (prefers-color-scheme: dark) {
  .summary-card.highlight { color: #10170f; }
  .summary-card.highlight span,
  .summary-card.highlight small { color: rgb(16 23 15 / 0.78); }
}
.summary-card.negative {
  background: linear-gradient(145deg, var(--danger), color-mix(in srgb, var(--danger) 72%, var(--surface)));
}

.panel { padding: 24px; }
.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.panel-header p { margin-bottom: 0; line-height: 1.5; }

.income-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
label { display: grid; gap: 8px; }
label span {
  font-size: 0.82rem;
  font-weight: 760;
  color: var(--muted);
}
input, select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}
input::placeholder { color: color-mix(in srgb, var(--muted) 76%, transparent); }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}
.expenses-panel { min-width: 0; }
.search-box { min-width: min(320px, 100%); }
.expense-list { display: grid; gap: 12px; }
.expense-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: color-mix(in srgb, var(--surface) 80%, var(--surface-strong));
}
.expense-main {
  display: grid;
  grid-template-columns: minmax(180px, 1.4fr) minmax(140px, 0.8fr) minmax(120px, 0.65fr) minmax(135px, 0.65fr);
  gap: 12px;
  align-items: end;
}
.expense-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
  margin-top: 12px;
}
.amount-input { font-weight: 800; }
.category-list { display: grid; gap: 10px; margin-top: 18px; }
.category-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.category-item:last-child { border-bottom: 0; }
.category-item strong { letter-spacing: -0.025em; }
.category-item span { color: var(--muted); }
.note-box {
  margin-top: 22px;
  padding: 16px;
  border-radius: var(--radius-small);
  background: var(--surface-strong);
  color: var(--muted);
  line-height: 1.55;
}
.note-box strong { color: var(--text); }
.note-box p { margin-bottom: 0; }
.empty-state {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1040px) {
  .hero,
  .workspace { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding: 42px 0 24px; }
  .hero-actions,
  .toolbar { justify-content: flex-start; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .income-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .shell { width: min(100% - 20px, 1440px); padding-top: 14px; }
  h1 { font-size: clamp(2.3rem, 14vw, 4rem); line-height: 1; }
  .summary-grid,
  .income-grid,
  .expense-main,
  .expense-meta { grid-template-columns: 1fr; }
  .panel { padding: 16px; }
  .panel-header.stackable { display: grid; }
  .toolbar, .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .button { text-align: center; }
  .search-box { grid-column: 1 / -1; }
}