:root {
  --bg: #0d0f14;
  --surface: #161920;
  --surface2: #1e2229;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);
  --text: #f0ede6;
  --muted: #7a8090;
  --gold: #d4a843;
  --gold-dim: rgba(212,168,67,0.12);
  --green: #3ecf6e;
  --green-dim: rgba(62,207,110,0.1);
  --red: #f05252;
  --red-dim: rgba(240,82,82,0.1);
  --radius: 14px;
  --radius-sm: 8px;
}

body.light-mode {
  --bg: #f5f3ef;
  --surface: #ffffff;
  --surface2: #f0ede6;
  --border: rgba(0,0,0,0.07);
  --border2: rgba(0,0,0,0.13);
  --text: #1a1b1f;
  --muted: #7a8090;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  transition: background 0.3s, color 0.3s;
}

.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

/* NAVBAR */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}
.brand-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  color: var(--text);
  display: block;
}
.brand-sub {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
  display: block;
}
.nav-controls { display: flex; align-items: center; gap: 12px; }
.role-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 30px;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--muted);
}
.custom-select { position: relative; }
.cs-trigger {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
}
.cs-arrow { font-size: 10px; color: var(--muted); transition: transform .2s; }
.custom-select.open .cs-arrow { transform: rotate(180deg); }
.cs-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  list-style: none;
  min-width: 110px;
  z-index: 999;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.custom-select.open .cs-dropdown { display: block; }
.cs-option {
  padding: 9px 14px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  transition: background .15s;
}
.cs-option:hover { background: var(--surface2); }
.cs-option.selected { color: var(--gold); }
.theme-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}
.theme-btn:hover { border-color: var(--gold); color: var(--gold); }

/* SUMMARY CARDS */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.sum-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.sum-card:hover { border-color: var(--border2); }
.sum-card.featured {
  border-color: rgba(212,168,67,0.3);
  background: linear-gradient(135deg, var(--surface) 70%, rgba(212,168,67,0.06));
}
.sum-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.sum-amount {
  font-family: 'DM Serif Display', serif;
  font-size: 30px;
  color: var(--text);
  letter-spacing: -0.5px;
}
.sum-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.sum-badge.gold { background: var(--gold-dim); }
.sum-badge.green { background: var(--green-dim); }
.sum-badge.red { background: var(--red-dim); }
.sum-sub { font-size: 11px; color: var(--muted); margin-top: 6px; }

/* CHARTS */
.charts-row {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.card-title { font-size: 15px; font-weight: 500; color: var(--text); }
.card-sub { font-size: 11px; color: var(--muted); margin-top: 3px; }
.card-header { margin-bottom: 18px; }
.chart-container { position: relative; height: 220px; }

/* TRANSACTIONS */
.tx-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
}
.tx-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}
.add-btn {
  background: var(--gold);
  color: #1a1100;
  padding: 8px 16px;
  border-radius: 30px;
  border: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}
.add-btn:hover { opacity: 0.85; }
.filters-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  margin-bottom: 16px;
}
.filters-row input,
.filters-row select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}
.filters-row input:focus,
.filters-row select:focus { border-color: var(--gold); }
.filters-row select { cursor: pointer; }

table { width: 100%; border-collapse: collapse; }
thead th {
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0 12px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--surface2); }

.type-pill {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: capitalize;
}
.type-pill.income { background: var(--green-dim); color: var(--green); }
.type-pill.expense { background: var(--red-dim); color: var(--red); }
.amount-income { color: var(--green); font-weight: 500; }
.amount-expense { color: var(--red); font-weight: 500; }
.del-btn {
  background: transparent;
  border: 1px solid rgba(240,82,82,0.25);
  color: var(--red);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  cursor: pointer;
  transition: background 0.15s;
}
.del-btn:hover { background: var(--red-dim); }
.no-data { text-align: center; color: var(--muted); padding: 32px; font-size: 13px; }

/* INSIGHTS */
.insights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.insight-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.2s;
}
.insight-card:hover { border-color: var(--border2); }
.insight-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.insight-val {
  font-family: 'DM Serif Display', serif;
  font-size: 26px;
  letter-spacing: -0.3px;
}
.insight-val.positive { color: var(--green); }
.insight-val.negative { color: var(--red); }
.insight-sub { font-size: 11px; color: var(--muted); margin-top: 5px; }

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-overlay.hidden { display: none; }
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 420px;
}
.modal-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  margin-bottom: 20px;
  color: var(--text);
}
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-form input,
.modal-form select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  outline: none;
  width: 100%;
  transition: border-color 0.2s;
}
.modal-form input:focus,
.modal-form select:focus { border-color: var(--gold); }
.modal-form input::placeholder { color: var(--muted); }
.modal-actions { display: flex; gap: 10px; margin-top: 4px; }
.modal-submit {
  flex: 1;
  background: var(--gold);
  color: #1a1100;
  padding: 11px;
  border-radius: 30px;
  border: none;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: opacity 0.2s;
}
.modal-submit:hover { opacity: 0.85; }
.modal-cancel {
  background: var(--surface2);
  color: var(--muted);
  padding: 11px 18px;
  border-radius: 30px;
  border: 1px solid var(--border);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.modal-cancel:hover { border-color: var(--border2); }

/* TABLE SCROLL WRAPPER — applied via HTML div.table-scroll */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table { min-width: 520px; }

/* ── RESPONSIVE: Mobile (≤600px) ── */
@media (max-width: 600px) {
  .app {
    padding: 12px 12px 40px;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
  }

  .nav-controls {
    width: 100%;
    justify-content: space-between;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .sum-amount {
    font-size: 22px;
  }

  .sum-card {
    padding: 16px 18px;
  }

  .charts-row {
    grid-template-columns: 1fr;
  }

  .chart-container {
    height: 180px;
  }

  .tx-section {
    padding: 16px 14px;
  }

  .tx-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .add-btn {
    width: 100%;
    text-align: center;
    padding: 10px;
  }

  .filters-row {
    grid-template-columns: 1fr;
  }

  .insights-grid {
    grid-template-columns: 1fr;
  }

  .insight-val {
    font-size: 22px;
  }

  .insight-card {
    padding: 16px 18px;
  }

  .modal-box {
    padding: 20px 16px;
  }

  .modal-title {
    font-size: 18px;
  }

  .modal-actions {
    flex-direction: column;
  }

  .modal-cancel {
    text-align: center;
  }
}

/* ── RESPONSIVE: Tablet (601px–860px) ── */
@media (min-width: 601px) and (max-width: 860px) {
  .navbar {
    flex-wrap: wrap;
    gap: 10px;
  }

  .summary-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .charts-row {
    grid-template-columns: 1fr;
  }

  .chart-container {
    height: 200px;
  }

  .filters-row {
    grid-template-columns: 1fr auto auto;
  }

  .insights-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}