:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --pos: #16a34a;
  --pos-bg: #dcfce7;
  --neg: #dc2626;
  --neg-bg: #fee2e2;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 8px 24px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: #f1f5f9;
  color: var(--ink);
  line-height: 1.5;
}

.topbar {
  background: linear-gradient(135deg, var(--bg), var(--bg-soft));
  color: #fff;
  padding: 24px 20px;
  text-align: center;
}
.topbar h1 { margin: 0; font-size: 1.5rem; }
.subtitle { margin: 4px 0 0; color: #cbd5e1; font-size: .9rem; }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
}

/* Özet kartları */
.summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.card.highlight { border-color: var(--brand); box-shadow: 0 0 0 2px rgba(37,99,235,.15), var(--shadow); }
.card-label { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.card-value { font-size: 1.4rem; font-weight: 700; }
.card-value.pos { color: var(--pos); }
.card-value.neg { color: var(--neg); }

/* Filtre */
.filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px;
  margin-bottom: 16px;
}
.filterbar label { font-size: .8rem; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.filterbar input { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: .95rem; }
.count { margin-left: auto; color: var(--muted); font-size: .85rem; }

/* Yerleşim */
.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 18px;
  align-items: start;
}
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
}

.form-panel, .table-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.form-panel h2, .table-panel h2 { margin: 0 0 14px; font-size: 1.1rem; }

#sale-form { display: flex; flex-direction: column; gap: 12px; }
#sale-form label { display: flex; flex-direction: column; gap: 5px; font-size: .85rem; font-weight: 600; color: #334155; }
#sale-form input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 1rem;
  font-weight: 400;
}
#sale-form input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }
.opt { color: var(--muted); font-weight: 400; }

.live-profit {
  background: #f8fafc;
  border: 1px dashed var(--border);
  border-radius: 9px;
  padding: 10px 12px;
  font-weight: 700;
  text-align: center;
}
.live-profit.pos { color: var(--pos); border-color: var(--pos); background: var(--pos-bg); }
.live-profit.neg { color: var(--neg); border-color: var(--neg); background: var(--neg-bg); }

.form-actions { display: flex; gap: 10px; }
.btn-primary {
  flex: 1;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 9px;
  padding: 11px 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 9px 14px;
  cursor: pointer;
  color: #334155;
  font-size: .9rem;
}
.btn-ghost:hover { background: #f1f5f9; }
.form-error { color: var(--neg); font-size: .85rem; margin: 0; }

/* Tablo */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { padding: 10px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.num { text-align: right; }
td.num { font-variant-numeric: tabular-nums; }
tr:hover td { background: #f8fafc; }

.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-weight: 700; font-variant-numeric: tabular-nums; }
.pill.pos { color: var(--pos); background: var(--pos-bg); }
.pill.neg { color: var(--neg); background: var(--neg-bg); }

.product-cell { white-space: normal; max-width: 220px; }
.product-cell .note { display: block; color: var(--muted); font-size: .78rem; }

.actions-col { width: 1%; }
.row-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 6px;
  border-radius: 6px;
}
.row-btn:hover { background: #e2e8f0; }

.empty { text-align: center; color: var(--muted); padding: 24px 0; }