:root {
  --bg: #0f172a;
  --bg-elevated: #111c31;
  --card: #1e293b;
  --card-soft: #243247;
  --card-border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --blue: #3b82f6;
  --green: #10b981;
  --yellow: #f59e0b;
  --red: #ef4444;
  --cyan: #06b6d4;
  --purple: #8b5cf6;
  --shadow: 0 24px 48px rgba(2, 6, 23, 0.42);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 20rem),
    radial-gradient(circle at bottom left, rgba(6, 182, 212, 0.16), transparent 18rem),
    var(--bg);
  color: var(--text);
}

.hidden {
  display: none !important;
}

.loading-screen,
.login-screen,
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.loading-screen {
  flex-direction: column;
  gap: 1rem;
  background: rgba(15, 23, 42, 0.98);
}

.spinner {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  border: 4px solid rgba(148, 163, 184, 0.25);
  border-top-color: var(--blue);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.login-screen {
  background:
    linear-gradient(135deg, rgba(30, 41, 59, 0.92), rgba(15, 23, 42, 0.96)),
    var(--bg);
}

.login-card,
.modal-card {
  width: min(30rem, 100%);
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.98), rgba(17, 28, 49, 0.98));
  border: 1px solid rgba(51, 65, 85, 0.95);
  border-radius: 1.5rem;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.login-card h1,
.app-header h1 {
  margin: 0.35rem 0 0.5rem;
  font-size: clamp(1.5rem, 2vw, 2rem);
  line-height: 1.08;
}

.login-card p,
.app-header p,
.muted {
  color: var(--muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 700;
}

.field,
select,
input {
  width: 100%;
  border: 1px solid var(--card-border);
  border-radius: 0.9rem;
  background: rgba(15, 23, 42, 0.7);
  color: var(--text);
  padding: 0.85rem 1rem;
  font: inherit;
}

.field:focus,
select:focus,
input:focus {
  outline: 2px solid rgba(59, 130, 246, 0.2);
  border-color: var(--blue);
}

.btn {
  border: 0;
  border-radius: 0.9rem;
  font: inherit;
  font-weight: 700;
  padding: 0.8rem 1rem;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), #2563eb);
  color: white;
}

.btn-secondary {
  background: rgba(59, 130, 246, 0.12);
  color: var(--text);
  border: 1px solid rgba(59, 130, 246, 0.18);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--card-border);
}

.error {
  margin-top: 0.9rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.85rem;
  background: rgba(239, 68, 68, 0.15);
  color: #fecaca;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.app-shell {
  padding: 1.4rem;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.5rem 1.1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pill,
.metric-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  border: 1px solid rgba(51, 65, 85, 0.9);
  background: rgba(30, 41, 59, 0.8);
  color: var(--text);
  font-size: 0.78rem;
}

.tab-nav {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.tab-btn {
  border: 0;
  border-radius: 0.9rem;
  background: rgba(30, 41, 59, 0.7);
  color: var(--muted);
  padding: 0.8rem 1rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
}

.tab-btn.active {
  color: white;
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.4);
}

.page-shell {
  display: grid;
  gap: 1.1rem;
}

.surface {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.96), rgba(17, 28, 49, 0.96));
  border: 1px solid rgba(51, 65, 85, 0.92);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section {
  padding: 1.2rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.section-header h2,
.section-header h3,
.section-title {
  margin: 0;
  font-size: 1.02rem;
}

.hero-card {
  padding: 1.3rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.hero-copy h2 {
  margin: 0.3rem 0 0.45rem;
  font-size: 1.65rem;
}

.hero-copy p {
  margin: 0;
  max-width: 50rem;
  color: var(--muted);
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
  align-items: flex-start;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.9rem;
}

.kpi-card {
  padding: 1rem;
  border-radius: 1.1rem;
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(51, 65, 85, 0.8);
}

.kpi-label {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  margin-bottom: 0.45rem;
}

.kpi-value {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.kpi-value.blue { color: var(--blue); }
.kpi-value.green { color: var(--green); }
.kpi-value.yellow { color: var(--yellow); }
.kpi-value.red { color: var(--red); }
.kpi-value.cyan { color: var(--cyan); }

.kpi-note {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.dashboard-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.45fr 1fr;
}

.chart-card {
  padding: 1rem 1.1rem 0.85rem;
}

.chart-frame {
  position: relative;
  height: 19rem;
}

.chart-frame.compact {
  height: 17rem;
}

.insight-list,
.focus-list,
.calendar-list,
.timeline-list {
  display: grid;
  gap: 0.7rem;
}

.insight-item,
.focus-item,
.calendar-item,
.timeline-item {
  border: 1px solid rgba(51, 65, 85, 0.7);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.42);
  padding: 0.9rem 1rem;
}

.insight-item strong,
.focus-item strong,
.calendar-item strong,
.timeline-item strong {
  display: block;
  margin-bottom: 0.2rem;
}

.toolbar,
.filter-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar .field,
.filter-row .field,
.filter-row select {
  max-width: 16rem;
}

.data-table-wrap,
.matrix-wrap {
  overflow: auto;
  border-radius: 1rem;
  border: 1px solid rgba(51, 65, 85, 0.85);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 58rem;
}

th,
td {
  padding: 0.85rem 0.95rem;
  text-align: left;
  border-bottom: 1px solid rgba(51, 65, 85, 0.55);
  vertical-align: top;
  font-size: 0.85rem;
}

th {
  background: rgba(15, 23, 42, 0.9);
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
}

tbody tr {
  transition: background 0.15s ease;
}

tbody tr:hover {
  background: rgba(59, 130, 246, 0.08);
}

.table-clickable tbody tr {
  cursor: pointer;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.tag.hot,
.tag.positive {
  color: #bbf7d0;
  background: rgba(16, 185, 129, 0.18);
}

.tag.warm,
.tag.mid {
  color: #fde68a;
  background: rgba(245, 158, 11, 0.16);
}

.tag.cold,
.tag.negative {
  color: #fecaca;
  background: rgba(239, 68, 68, 0.16);
}

.tag.neutral {
  color: #bfdbfe;
  background: rgba(59, 130, 246, 0.16);
}

.status-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.35fr 0.95fr;
}

.calendar-switch {
  display: inline-flex;
  gap: 0.5rem;
}

.calendar-switch .btn.active {
  background: rgba(59, 130, 246, 0.22);
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.calendar-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.matrix-table td {
  text-align: center;
}

.matrix-table td:first-child,
.matrix-table th:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  z-index: 1;
  background: rgba(15, 23, 42, 0.96);
}

.matrix-table tbody tr.positive td:first-child { color: var(--green); }
.matrix-table tbody tr.negative td:first-child { color: var(--red); }
.matrix-table tbody tr.mid td:first-child { color: var(--yellow); }

.metric-cell {
  cursor: pointer;
  font-weight: 700;
}

.metric-cell:hover {
  background: rgba(59, 130, 246, 0.12);
}

.summary-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-card {
  padding: 1rem;
  border: 1px solid rgba(51, 65, 85, 0.7);
  border-radius: 1rem;
  background: rgba(15, 23, 42, 0.45);
}

.lookup-hero {
  text-align: center;
  padding: 1.7rem 1rem 0.6rem;
}

.lookup-hero h2 {
  margin: 0.4rem 0 0.45rem;
}

.lookup-search {
  display: flex;
  gap: 0.7rem;
  max-width: 42rem;
  margin: 0 auto;
}

.lookup-search input {
  flex: 1;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1rem;
}

.detail-card {
  border-radius: 1rem;
  border: 1px solid rgba(51, 65, 85, 0.7);
  background: rgba(15, 23, 42, 0.45);
  padding: 0.95rem 1rem;
}

.detail-card h4 {
  margin: 0 0 0.55rem;
  font-size: 0.92rem;
}

.modal-backdrop {
  background: rgba(2, 6, 23, 0.72);
  z-index: 110;
}

.modal-card {
  width: min(62rem, 100%);
  max-height: 92vh;
  overflow: auto;
}

.modal-close {
  margin-left: auto;
  display: block;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid rgba(51, 65, 85, 0.9);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
  cursor: pointer;
}

.toast {
  position: fixed;
  bottom: 1.4rem;
  right: 1.4rem;
  z-index: 120;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(51, 65, 85, 0.9);
  color: var(--text);
  border-radius: 0.9rem;
  padding: 0.8rem 1rem;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.4rem);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-card,
  .dashboard-grid,
  .status-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 1rem;
  }

  .app-header {
    flex-direction: column;
  }

  .hero-metrics,
  .header-actions {
    justify-content: flex-start;
  }

  .kpi-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .lookup-search {
    flex-direction: column;
  }
}