:root {
  --navy: #2e2b6e;
  --navy-dark: #1f1d4d;
  --green: #00ff2e;
  --cyan: #00bcff;
  --brand-gradient: linear-gradient(135deg, var(--green), var(--cyan));
  --bg: #f5f6fa;
  --surface: #ffffff;
  --text: #1a1a2e;
  --muted: #6b6b80;
  --border: #e2e2ec;
  --warn: #b4530a;
  --warn-bg: rgba(180, 83, 10, 0.08);
  --ok: #16833f;
  --danger-bg: #fff0ec;
  --danger-border: #e08a6f;
  --danger-text: #a33a12;
  --report-heading: var(--navy);
  --radius: 8px;
}

@media (prefers-color-scheme: dark) {
  /* System dark mode, unless the user has explicitly picked light in-app. */
  :root:not([data-theme='light']) {
    --bg: #14131f;
    --surface: #1d1c2e;
    --text: #eceaf7;
    --muted: #a6a4bd;
    --border: #34324a;
    --warn: #ffb066;
    --warn-bg: rgba(255, 176, 102, 0.12);
    --ok: #6fe3a0;
    --danger-bg: #3a231d;
    --danger-border: #7a4330;
    --danger-text: #ffb08a;
    --report-heading: #cfd0ff;
  }
}

/* Explicit in-app dark choice always wins, regardless of system preference. */
:root[data-theme='dark'] {
  --bg: #14131f;
  --surface: #1d1c2e;
  --text: #eceaf7;
  --muted: #a6a4bd;
  --border: #34324a;
  --warn: #ffb066;
  --warn-bg: rgba(255, 176, 102, 0.12);
  --ok: #6fe3a0;
  --danger-bg: #3a231d;
  --danger-border: #7a4330;
  --danger-text: #ffb08a;
  --report-heading: #cfd0ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 10px 24px;
  background: var(--navy);
  color: #fff;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { height: 34px; border-radius: 4px; background: #f5f6fa; padding: 2px 6px; }
.brand-title { font-weight: 600; font-size: 1.05rem; letter-spacing: 0.01em; }

.app-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.app-nav a {
  color: #d9d8ef;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.92rem;
}
.app-nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.app-nav a.active { background: var(--brand-gradient); color: #0c1d1a; font-weight: 600; }

.theme-toggle {
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-radius: 999px;
  width: 34px;
  height: 34px;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle:hover { background: rgba(255, 255, 255, 0.16); }

.app-main { max-width: 1200px; margin: 0 auto; padding: 20px 24px 60px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
}

h1 { font-size: 1.4rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 20px 0 10px; }
.muted { color: var(--muted); }
.warn { color: var(--warn); }
.warn.loud { font-weight: 600; padding: 8px 12px; border: 1px solid var(--warn); border-radius: var(--radius); background: var(--warn-bg); }
.ok { color: var(--ok); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; }
.small { font-size: 0.85rem; }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--muted);
  transition: border-color 0.15s, background 0.15s;
}
.dropzone.drag-active { border-color: var(--cyan); background: rgba(22,184,224,0.08); }

.button {
  display: inline-block;
  cursor: pointer;
  border: none;
  border-radius: var(--radius);
  padding: 9px 16px;
  font-size: 0.92rem;
  font-weight: 600;
  background: var(--brand-gradient);
  color: #0c1d1a;
}
.button.secondary { background: var(--surface); border: 1px solid var(--border); color: var(--text); }
.button.danger { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger-text); }
.button.small { padding: 5px 10px; font-size: 0.82rem; }
.button:disabled { opacity: 0.5; cursor: not-allowed; }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin: 10px 0; font-size: 0.9rem; }
.progress-area { margin-top: 12px; font-size: 0.9rem; color: var(--muted); }
.actions-row { display: flex; gap: 10px; margin-top: 16px; }

.stat-row { display: flex; flex-wrap: wrap; gap: 24px; margin: 12px 0 4px; }
.stat { display: flex; flex-direction: column; min-width: 110px; }
.stat-value { font-size: 1.6rem; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 0.82rem; }

.edit-table, .data-table, .report-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  font-size: 0.92rem;
}
.edit-table th, .edit-table td,
.data-table th, .data-table td,
.report-table th, .report-table td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
}
.edit-table input[type=text], .report-controls input, .report-controls select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
}
.data-table.sortable th[data-sort] { cursor: pointer; user-select: none; }
.data-table.sortable th[data-sort]:hover { color: var(--cyan); }
.indent { padding-left: 28px !important; color: var(--muted); }
.expand-btn { background: none; border: none; cursor: pointer; font-size: 0.9rem; color: var(--muted); }

.filter-bar { margin-bottom: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 16px; }
.filter-bar summary { cursor: pointer; font-weight: 600; }
.badge { display: inline-block; margin-left: 8px; padding: 1px 8px; border-radius: 999px; background: var(--brand-gradient); color: #0c1d1a; font-size: 0.72rem; font-weight: 700; }
.filter-grid { display: grid; grid-template-columns: repeat(5, minmax(140px, 1fr)); gap: 14px; margin-top: 12px; }
.filter-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 0.82rem; color: var(--muted); }
.filter-grid select[multiple] { border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); font-size: 0.85rem; }
.filter-grid-narrow { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.filter-grid-narrow input[type=date], .filter-grid-narrow input[type=number] {
  padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); width: 110px;
}

.toggle-row { display: flex; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.segmented button { border: none; background: var(--surface); color: var(--text); padding: 7px 14px; cursor: pointer; font-size: 0.85rem; }
.segmented button.active { background: var(--brand-gradient); color: #0c1d1a; font-weight: 600; }

.chart-wrap { position: relative; height: 420px; }

.report-controls { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; margin-top: 10px; }
.report-controls label { display: flex; flex-direction: column; gap: 4px; font-size: 0.82rem; color: var(--muted); min-width: 140px; }
.checkbox-grid { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 10px 0 16px; }
.report-total-row td { border-top: 2px solid var(--border); }

.report-page { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 32px; max-width: 900px; margin: 0 auto; }
.report-header { display: flex; align-items: center; gap: 18px; border-bottom: 3px solid var(--navy); padding-bottom: 14px; margin-bottom: 16px; }
.report-logo { height: 46px; }
.report-header h1 { margin: 0; color: var(--report-heading); }
.report-subtitle { margin: 2px 0 0; color: var(--muted); font-size: 1rem; }
.location-pills { margin-bottom: 14px; }
.pill { display: inline-block; padding: 4px 12px; border-radius: 999px; background: var(--navy); color: #fff; font-size: 0.85rem; font-weight: 600; }