:root {
  --bg:           #f4f7fb;
  --bg2:          #ffffff;
  --bg3:          #eef3fa;
  --border:       #d7e0eb;
  --accent:       #2563eb;
  --accent-hover: #1d4ed8;
  --accent-glow:  rgba(37, 99, 235, 0.18);
  --text:         #1e293b;
  --text-strong:  #0f172a;
  --muted:        #64748b;
  --success:      #16a34a;
  --warning:      #d97706;
  --danger:       #dc2626;
  --critical:     #b91c1c;
  --info:         #2563eb;
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

/* ── Bootstrap dark-utility overrides (keeps existing HTML classes working) ── */
.text-white       { color: var(--text-strong) !important; }
.text-light       { color: var(--text) !important; }
.text-muted       { color: var(--muted) !important; }
.bg-dark          { background-color: var(--bg3) !important; }
.bg-black         { background-color: var(--bg2) !important; }
.border-secondary { border-color: var(--border) !important; }
.border-bottom-dark { border-color: var(--border) !important; }
.border-top-dark    { border-color: var(--border) !important; }

/* Bootstrap table-dark → light */
.table-dark {
  --bs-table-bg: var(--bg2);
  --bs-table-color: var(--text);
  --bs-table-border-color: var(--border);
  --bs-table-striped-bg: var(--bg3);
  --bs-table-striped-color: var(--text);
  --bs-table-hover-bg: var(--accent-glow);
  --bs-table-hover-color: var(--text-strong);
  color: var(--text);
  background-color: var(--bg2);
  border-color: var(--border);
}
.table-dark th,
.table-dark td {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border);
}
.table-dark thead th {
  color: var(--text-strong);
  background-color: var(--bg3);
}

/* Bootstrap navbar-dark → light */
.navbar-dark,
.navbar.navbar-dark {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.navbar-dark .navbar-brand,
.navbar-dark .nav-link,
.navbar-dark .navbar-text { color: var(--text) !important; }
.navbar-dark .nav-link:hover { color: var(--accent) !important; }

/* ── NAVBAR ── */
.navbar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.btn-accent {
  background: var(--accent);
  color: #ffffff;
  border: none;
}
.btn-accent:hover { background: var(--accent-hover); color: #ffffff; }
.btn-outline-accent {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
}
.btn-outline-accent:hover { background: var(--accent); color: #ffffff; }

.text-accent { color: var(--accent) !important; }

/* ── WARNINGS ── */
.warnings-banner {
  background: rgba(220, 38, 38, 0.06);
  border-bottom: 1px solid rgba(220, 38, 38, 0.25);
}

.warning-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.warning-pill.critical { background: rgba(220, 38, 38, 0.12); color: #b91c1c; border: 1px solid rgba(220,38,38,0.35); }
.warning-pill.warning  { background: rgba(217, 119, 6, 0.12); color: #b45309; border: 1px solid rgba(217,119,6,0.35); }
.warning-pill.low      { background: rgba(37, 99, 235, 0.12); color: #1d4ed8; border: 1px solid rgba(37,99,235,0.35); }

/* ── CATEGORY FILTERS ── */
.category-filters .btn {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--muted);
  transition: all 0.15s;
}
.category-filters .btn.active,
.category-filters .btn:hover {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ── CHARTS GRID ── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 16px;
}

/* ── CHART CARD ── */
.chart-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.chart-card:hover { border-color: var(--accent); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.08); }
.chart-card.has-warning  { border-color: rgba(217,119,6,0.5); }
.chart-card.has-critical { border-color: rgba(220,38,38,0.5); }

.chart-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 4px;
}

.chart-latest {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 12px;
}
.chart-latest .value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-strong);
}
.chart-latest .unit { font-size: 12px; color: var(--muted); }
.chart-latest .badge-status {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-normal        { background: rgba(22,163,74,0.12);  color: #15803d; }
.badge-high          { background: rgba(217,119,6,0.12);  color: #b45309; }
.badge-low           { background: rgba(37,99,235,0.12);  color: #1d4ed8; }
.badge-warning_high  { background: rgba(217,119,6,0.18);  color: #b45309; }
.badge-warning_low   { background: rgba(37,99,235,0.18);  color: #1d4ed8; }
.badge-critical_high { background: rgba(220,38,38,0.18);  color: #b91c1c; }
.badge-critical_low  { background: rgba(220,38,38,0.18);  color: #b91c1c; }

.chart-note {
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: 6px;
}

canvas { border-radius: 4px; }

/* ── CARD (generic) ── */
.card-dark {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

/* ── DROP ZONE ── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--muted);
  background: var(--bg3);
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--text-strong);
}
.drop-zone.has-file {
  border-color: var(--success);
  background: rgba(22, 163, 74, 0.08);
  color: var(--success);
}

/* ── FORMS ── */
.form-control-dark {
  background: var(--bg2) !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  border-radius: 8px;
}
.form-control-dark:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-glow) !important;
  background: var(--bg2) !important;
  color: var(--text) !important;
}
.form-control-dark::placeholder { color: var(--muted) !important; }
.form-select-dark {
  background: var(--bg2) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2364748b' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e") no-repeat right .75rem center/16px 12px !important;
  border: 1px solid var(--border) !important;
  color: var(--text) !important;
  border-radius: 8px;
}
.form-select-dark:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-glow) !important;
}

/* ── MODAL ── */
.modal-dark {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
}
.modal-dark .modal-header,
.modal-dark .modal-footer { border-color: var(--border) !important; }
.modal-dark .btn-close {
  filter: none;
}

/* ── DOSAGE ROW ── */
.dosage-row {
  display: grid;
  grid-template-columns: 1fr 70px 65px 1fr 1fr auto;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.dosage-row .btn-remove {
  background: none;
  border: none;
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.dosage-row .btn-remove:hover { color: var(--danger); background: rgba(220,38,38,0.08); }

/* ── HISTORY TABLE ── */
.history-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.history-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.history-date { font-weight: 700; font-size: 15px; color: var(--text-strong); }
.history-dosages { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.dosage-tag {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 12px;
  color: var(--text);
}
.marker-pills { display: flex; flex-wrap: wrap; gap: 6px; padding: 12px 18px; }
.marker-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 8px;
  font-size: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
}
.marker-pill.normal        { border-color: rgba(22,163,74,0.3); }
.marker-pill.high,
.marker-pill.warning_high  { border-color: rgba(217,119,6,0.45); color: #b45309; }
.marker-pill.low,
.marker-pill.warning_low   { border-color: rgba(37,99,235,0.45); color: #1d4ed8; }
.marker-pill.critical_high,
.marker-pill.critical_low  { border-color: rgba(220,38,38,0.45); color: #b91c1c; }

/* ── HISTORY WARNING BADGE ── */
.history-warning-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 8px;
  border-radius: 10px;
  background: rgba(217,119,6,0.12);
  color: #b45309;
  border: 1px solid rgba(217,119,6,0.3);
  margin-left: 8px;
  vertical-align: middle;
}

/* Selected card highlight */
.history-card:has(.session-checkbox:checked) {
  border-color: rgba(37,99,235,0.5);
  background: rgba(37,99,235,0.05);
}

/* ── COMPARE TABLE ── */
.cmp-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
  color: var(--text);
}
.cmp-table thead th {
  background: var(--bg3);
  color: var(--text-strong);
  padding: 10px 12px;
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.cmp-date { font-size: 13px; font-weight: 700; color: var(--text-strong); }
.cmp-proto { font-size: 10px; color: var(--muted); margin-top: 2px; }

/* Category divider rows */
.cmp-cat-row td {
  padding: 0;
  background: transparent;
  border-bottom: none !important;
}
.cmp-cat-row:first-child td { padding-top: 0; }
.cmp-cat-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 6px;
  margin-top: 4px;
  background: var(--bg3);
  border-left: 3px solid currentColor;
}
.cmp-cat-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Data rows */
.cmp-row td {
  padding: 5px 12px;
  border-bottom: 1px solid rgba(15,23,42,0.06);
  vertical-align: middle;
}
.cmp-row:hover td { background: rgba(37,99,235,0.06); }
.row-risk td     { background: rgba(217,119,6,0.06); }
.row-critical td { background: rgba(220,38,38,0.07); }
.cell-warn       { border-left: 2px solid #d97706 !important; }
.cell-critical   { border-left: 2px solid #dc2626 !important; }

/* Marker name column */
.cmp-marker-col { width: 200px; white-space: nowrap; }
.cmp-marker-name { font-weight: 600; color: var(--text-strong); }
.cmp-empty { color: var(--muted); text-align: center; }

/* Value cells */
.cmp-val-cell { text-align: left; white-space: nowrap; min-width: 90px; vertical-align: middle; }
.cmp-cell-inner { display: flex; align-items: center; gap: 4px; }
.cmp-val { font-size: 14px; font-weight: 700; color: var(--text-strong); }
.cmp-unit { font-size: 10px; font-weight: 400; opacity: 0.6; margin-left: 2px; }

/* Delta arrows */
.cmp-delta { font-size: 11px; margin-left: 6px; }
.cmp-delta.up        { color: #b45309; }
.cmp-delta.down      { color: #1d4ed8; }
.cmp-delta.good-up   { color: #15803d; }
.cmp-delta.good-down { color: #15803d; }

/* Risk badges */
.cmp-risk {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 8px;
  background: rgba(217,119,6,0.12);
  color: #b45309;
  border: 1px solid rgba(217,119,6,0.3);
  margin-left: 6px;
  vertical-align: middle;
  cursor: default;
}
.cmp-risk.cmp-risk-crit {
  background: rgba(220,38,38,0.12);
  color: #b91c1c;
  border-color: rgba(220,38,38,0.35);
}

/* Legacy delta classes (used elsewhere) */
.change.up        { color: #b45309; }
.change.down      { color: #1d4ed8; }
.change.good-up   { color: #15803d; }
.change.good-down { color: #15803d; }

/* ── NOTES SECTION ── */
.notes-display {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text);
  font-style: italic;
  margin-top: 8px;
}

/* ── SESSION SELECTOR ── */
.session-selector-bar { border-bottom: 1px solid var(--border); padding-bottom: 12px; }
#sessionSelector { background: var(--bg2); color: var(--text); border-color: var(--border); font-size: 13px; }
#sessionSelector option { background: var(--bg2); color: var(--text); }

/* ── UPLOAD TABS ── */
.nav-tabs-dark { border-bottom: 1px solid var(--border); }
.nav-tabs-dark .nav-link {
  color: var(--muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 0;
}
.nav-tabs-dark .nav-link:hover { color: var(--text-strong); }
.nav-tabs-dark .nav-link.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: transparent;
}

/* ── BATCH QUEUE ── */
.batch-queue-list {
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.batch-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text);
}
.batch-item .bi-name { flex: 1; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.batch-item .bi-status { font-size: 14px; flex-shrink: 0; }
.batch-item.pending   .bi-status { color: var(--muted); }
.batch-item.uploading .bi-status { color: var(--accent); }
.batch-item.done      { border-color: rgba(22,163,74,0.35); }
.batch-item.done      .bi-status { color: var(--success); }
.batch-item.error     { border-color: rgba(220,38,38,0.35); }
.batch-item.error     .bi-status { color: var(--danger); }
.batch-item .dosage-hint { font-size: 11px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }

@keyframes spin { to { transform: rotate(360deg); } }
.spin { display: inline-block; animation: spin 1s linear infinite; }

/* ── SUMMARY VIEW ── */
.summary-category { margin-bottom: 32px; }
.summary-cat-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}
.summary-markers {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(480px, 100%), 1fr));
  gap: 12px;
}

/* ── Summary card (i-screen style) ── */
.summary-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}
.summary-card.status-high,
.summary-card.status-warning_high,
.summary-card.status-low,
.summary-card.status-warning_low   { border-color: rgba(217,119,6,0.5); }
.summary-card.status-critical_high,
.summary-card.status-critical_low  { border-color: rgba(220,38,38,0.55); background: rgba(220,38,38,0.04); }
.summary-card.status-normal        { border-color: rgba(22,163,74,0.35); }

/* Two-column inner layout */
.summary-card-inner {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.summary-card-left {
  flex: 1;
  min-width: 0;
}
.summary-card-right {
  width: 220px;
  flex-shrink: 0;
  padding-top: 2px;
}

/* Marker title + value */
.summary-marker-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 5px;
  line-height: 1.3;
}
.summary-marker-val {
  font-weight: 500;
  opacity: 0.9;
  font-size: 13px;
  color: var(--text);
}

/* Status pill */
.summary-status-pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 20px;
  margin-bottom: 7px;
  white-space: nowrap;
}
.pill-normal        { background: rgba(22,163,74,0.12); color: #15803d; border: 1px solid rgba(22,163,74,0.3); }
.pill-high          { background: rgba(217,119,6,0.12); color: #b45309; border: 1px solid rgba(217,119,6,0.3); }
.pill-low           { background: rgba(37,99,235,0.12); color: #1d4ed8; border: 1px solid rgba(37,99,235,0.3); }
.pill-warning_high  { background: rgba(217,119,6,0.18); color: #b45309; border: 1px solid rgba(217,119,6,0.4); }
.pill-warning_low   { background: rgba(37,99,235,0.18); color: #1d4ed8; border: 1px solid rgba(37,99,235,0.4); }
.pill-critical_high { background: rgba(220,38,38,0.15); color: #b91c1c; border: 1px solid rgba(220,38,38,0.5); }
.pill-critical_low  { background: rgba(220,38,38,0.15); color: #b91c1c; border: 1px solid rgba(220,38,38,0.5); }

/* Marker description */
.summary-desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
}

/* ── i-screen style gauge ── */
.iscreen-gauge-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.iscreen-val-bubble {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 2px;
  position: relative;
  display: inline-block;
}
.iscreen-bar {
  position: relative;
  height: 10px;
  border-radius: 6px;
  display: flex;
  overflow: visible;
}
.iscreen-zone {
  height: 100%;
  flex-shrink: 0;
}
.zone-low    { background: rgba(37,99,235,0.18);  border-radius: 6px 0 0 6px; border: 1px solid rgba(37,99,235,0.3); }
.zone-norm   { background: rgba(22,163,74,0.22);  border-top: 1px solid rgba(22,163,74,0.45); border-bottom: 1px solid rgba(22,163,74,0.45); }
.zone-high   { background: rgba(220,38,38,0.18);  border-radius: 0 6px 6px 0; border: 1px solid rgba(220,38,38,0.3); }
.zone-danger { background: rgba(220,38,38,0.18);  border-radius: 6px 0 0 6px; border: 1px solid rgba(220,38,38,0.3); }
.iscreen-dot {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--bg2);
  z-index: 2;
  transition: left 0.3s;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.2);
}
.iscreen-range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--muted);
  margin-top: 2px;
  gap: 4px;
}
.iscreen-range-labels span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.iscreen-range-labels span:nth-child(2) {
  text-align: center;
  flex: 1;
}
.iscreen-val-only {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-strong);
  margin-top: 8px;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }