:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --text: #172033;
  --muted: #64748b;
  --border: #dbe3ef;
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --income: #047857;
  --expense: #b91c1c;
  --warning: #b45309;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #dbeafe 0, transparent 34rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

button, input, select, textarea { font: inherit; }

.hero {
  background: linear-gradient(135deg, #0f172a, #1d4ed8 62%, #0891b2);
  color: white;
  padding: 34px clamp(16px, 4vw, 48px);
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: flex-end;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .76rem;
  opacity: .78;
  font-weight: 700;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: .96;
  letter-spacing: -0.055em;
}

.lede {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255,255,255,.82);
  font-size: 1.02rem;
}

.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px clamp(12px, 3vw, 28px) 44px;
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 6px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(219,227,239,.75);
  border-radius: 999px;
  margin: -42px 0 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 8px;
  z-index: 5;
}

.tab {
  border: 0;
  border-radius: 999px;
  padding: 10px 15px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  font-weight: 750;
}

.tab.active { background: var(--primary); color: white; }

.panel { display: none; }
.panel.active { display: block; }

.grid { display: grid; grid-template-columns: minmax(280px, .9fr) minmax(0, 1.6fr); gap: 18px; align-items: start; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.top-space { margin-top: 18px; }

.card {
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(219,227,239,.92);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.summary-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.summary-card { padding: 18px; }
.summary-card .label { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
.summary-card .value { display: block; margin-top: 8px; font-size: clamp(1.35rem, 3vw, 2rem); font-weight: 850; letter-spacing: -.04em; }
.summary-card .sub { margin-top: 4px; color: var(--muted); font-size: .82rem; }

.section-title { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 16px; }
.section-title h2 { margin-bottom: 4px; letter-spacing: -.025em; }
.section-title p { margin-bottom: 0; color: var(--muted); font-size: .93rem; }

.form-grid { display: grid; gap: 13px; }
.form-grid.columns { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.form-grid.columns .wide { grid-column: span 2; }

label { display: grid; gap: 6px; color: #334155; font-weight: 760; font-size: .88rem; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: white;
  color: var(--text);
  padding: 10px 12px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,.12); }
input:disabled, select:disabled, textarea:disabled { background: var(--surface-2); color: var(--muted); }
.check { display: flex; align-items: center; gap: 9px; }
.check input { width: auto; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.disabled-form { opacity: .75; }

.btn {
  border: 0;
  border-radius: 999px;
  padding: 10px 15px;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-dark { background: #0f172a; color: white; }
.btn-light { background: rgba(255,255,255,.92); color: #0f172a; }
.btn-ghost { background: #eaf0f8; color: #334155; }
.btn-danger { background: #fee2e2; color: var(--expense); }
.btn-small { padding: 7px 11px; font-size: .82rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.stack { display: grid; gap: 10px; }
.item {
  border: 1px solid var(--border);
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 13px;
  display: grid;
  gap: 10px;
}
.item-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.item-title { font-weight: 850; letter-spacing: -.01em; }
.item-meta { color: var(--muted); font-size: .87rem; }
.item-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { border-radius: 999px; padding: 4px 8px; background: #e2e8f0; color: #334155; font-size: .75rem; font-weight: 850; }
.badge.income { background: #dcfce7; color: var(--income); }
.badge.expense { background: #fee2e2; color: var(--expense); }
.badge.warn { background: #fef3c7; color: var(--warning); }
.badge.off { background: #e5e7eb; color: #6b7280; }

.filters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-bottom: 12px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 11px 9px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; }
td.amount { font-weight: 850; text-align: right; }
tr.ignored { opacity: .55; }

.empty, .hint, .ai-box {
  border: 1px dashed var(--border);
  background: var(--surface-2);
  color: var(--muted);
  border-radius: var(--radius-sm);
  padding: 14px;
}
.hint { margin-top: 14px; font-size: .9rem; }
.ai-box { margin-top: 14px; display: grid; gap: 4px; }
.ai-box strong { color: var(--text); }
code { background: #e2e8f0; border-radius: 6px; padding: 1px 5px; }

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  background: #0f172a;
  color: white;
  padding: 12px 15px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  transform: translateY(90px);
  opacity: 0;
  transition: .2s;
  z-index: 20;
  max-width: min(440px, calc(100vw - 32px));
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.error { background: #991b1b; }

.money-income { color: var(--income); }
.money-expense { color: var(--expense); }
.muted { color: var(--muted); }

@media (max-width: 920px) {
  .hero { align-items: flex-start; flex-direction: column; }
  .hero-actions { justify-content: flex-start; }
  .grid, .grid.two { grid-template-columns: 1fr; }
  .form-grid.columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .shell { padding-inline: 10px; }
  .hero { padding-top: 26px; }
  .card { padding: 15px; border-radius: 16px; }
  .tabs { border-radius: 18px; }
  .tab { padding: 9px 12px; }
  .form-grid.columns, .filters, .summary-grid { grid-template-columns: 1fr; }
  .form-grid.columns .wide { grid-column: auto; }
  .item-head { display: grid; }
  .item-actions { justify-content: flex-start; }
}