:root {
  --mysteria: #1b1938;
  --mysteria-2: #2e2759;
  --lavender: #cbb7fb;
  --charcoal: #292827;
  --cream: #e9e5dd;
  --border: #dcd7d3;
  --paper: #ffffff;
  --canvas: #fbfaf8;
  --muted: #716d68;
  --success: #1d6b4f;
  --success-soft: #e4f3ed;
  --warning: #8a5b11;
  --warning-soft: #fff2d6;
  --danger: #8a1f32;
  --danger-soft: #f8e2e6;
  --blue: #2d5374;
  --blue-soft: #e2edf5;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 16px 50px rgba(27, 25, 56, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light;
}

html[data-theme="dark"] {
  --mysteria: #151329;
  --mysteria-2: #211d42;
  --lavender: #d4c4ff;
  --charcoal: #f3eee7;
  --cream: #e9e5dd;
  --border: #403b4a;
  --paper: #1d1b27;
  --canvas: #111019;
  --muted: #b7b0a8;
  --success: #8ee0bb;
  --success-soft: rgba(29,107,79,.28);
  --warning: #ffd27a;
  --warning-soft: rgba(138,91,17,.28);
  --danger: #ff9bab;
  --danger-soft: rgba(138,31,50,.30);
  --blue: #9dccf0;
  --blue-soft: rgba(45,83,116,.28);
  --shadow: 0 18px 70px rgba(0,0,0,.35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { min-width: 320px; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--charcoal);
  overflow-x: hidden;
}
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }

.app-shell {
  min-height: 100vh;
  display: block;
}

.sidebar {
  color: white;
  padding: 14px 14px 10px;
  background:
    radial-gradient(circle at top right, rgba(203,183,251,.25), transparent 32%),
    linear-gradient(180deg, var(--mysteria), var(--mysteria-2));
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--cream);
  color: #1b1938;
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 900;
  flex: 0 0 auto;
}

.brand-title {
  font-weight: 900;
  letter-spacing: -0.04em;
  font-size: 19px;
}

.brand-subtitle {
  color: rgba(255,255,255,.70);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.nav {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.nav-item {
  flex: 0 0 auto;
  min-height: 44px;
  border: 1px solid rgba(255,255,255,.12);
  background: transparent;
  color: rgba(255,255,255,.82);
  text-align: left;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-weight: 800;
  white-space: nowrap;
}

.nav-item:hover,
.nav-item.active {
  background: rgba(255,255,255,.13);
  color: white;
}

.sidebar-footer {
  display: none;
}

.operator-card {
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  gap: 10px;
  align-items: center;
}

.operator-card small {
  display: block;
  color: rgba(255,255,255,.65);
  font-size: 12px;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--lavender);
  color: #1b1938;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 12px;
  flex: 0 0 auto;
}

.sidebar-link {
  color: rgba(255,255,255,.75);
  background: transparent;
  border: 0;
  text-align: left;
  padding: 0;
  text-decoration: underline;
}

.workspace {
  width: 100%;
  padding: 0 14px 86px;
}

.top-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  gap: 10px;
  padding: 12px 0 14px;
  background: color-mix(in srgb, var(--canvas) 92%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
}

.breadcrumb {
  font-weight: 900;
  color: var(--muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.banner-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.control-label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.control-label select {
  min-width: 0;
  width: 100%;
  padding: 10px;
}

.page-header {
  display: grid;
  gap: 14px;
  margin: 18px 0 18px;
}

.page-header > div {
  min-width: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .11em;
  font-size: 11px;
  font-weight: 900;
  color: #714cb6;
  margin: 0 0 8px;
}

html[data-theme="dark"] .eyebrow { color: var(--lavender); }

h1 {
  margin: 0 0 10px;
  font-size: clamp(34px, 11vw, 46px);
  line-height: .94;
  letter-spacing: -0.055em;
  max-width: 100%;
}

h2 {
  margin: 0 0 12px;
  font-size: 21px;
  letter-spacing: -0.03em;
}

h3 {
  margin: 0 0 8px;
  font-size: 17px;
  letter-spacing: -0.02em;
}

p { line-height: 1.5; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.card, .panel {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card, .panel, .stat {
  padding: 16px;
}

.grid-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
  font-weight: 800;
}

.stat-value {
  font-size: 30px;
  letter-spacing: -0.06em;
  font-weight: 900;
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

input, select, textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 13px;
  background: var(--paper);
  color: var(--charcoal);
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--mysteria);
  box-shadow: 0 0 0 3px rgba(203,183,251,.36);
}

textarea {
  min-height: 92px;
  resize: vertical;
}

.btn {
  border: 0;
  border-radius: var(--radius-sm);
  min-height: 44px;
  padding: 12px 15px;
  font-weight: 900;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--mysteria);
  color: white;
}

html[data-theme="dark"] .btn-primary {
  background: var(--cream);
  color: #1b1938;
}

.btn-cream {
  background: var(--cream);
  color: #1b1938;
}

.btn-secondary {
  background: var(--paper);
  color: var(--charcoal);
  border: 1px solid var(--border);
}

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(138,31,50,.18);
}

.btn-link {
  background: transparent;
  border: 0;
  color: #714cb6;
  text-decoration: underline;
  padding: 0;
  font-weight: 800;
}

html[data-theme="dark"] .btn-link { color: var(--lavender); }

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  padding: 6px 9px;
  font-size: 12px;
  font-weight: 900;
  background: color-mix(in srgb, var(--paper) 70%, var(--border));
  color: var(--muted);
  border: 1px solid var(--border);
  max-width: 100%;
}

.badge-success { background: var(--success-soft); color: var(--success); border-color: rgba(29,107,79,.16); }
.badge-warning { background: var(--warning-soft); color: var(--warning); border-color: rgba(138,91,17,.16); }
.badge-danger { background: var(--danger-soft); color: var(--danger); border-color: rgba(138,31,50,.16); }
.badge-blue { background: var(--blue-soft); color: var(--blue); border-color: rgba(45,83,116,.16); }

.list-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.entity-card {
  transition: transform .14s ease, border-color .14s ease;
  cursor: pointer;
  display: grid;
  gap: 14px;
  min-height: auto;
}

.entity-card:hover {
  transform: translateY(-2px);
  border-color: var(--mysteria);
}

.entity-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  min-width: 0;
}

.entity-avatar {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: var(--lavender);
  color: #1b1938;
  display: grid;
  place-items: center;
  font-weight: 900;
  flex: 0 0 auto;
}

.entity-title {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
}

.meta-grid {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

.meta-row {
  display: grid;
  gap: 5px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: start;
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  flex-wrap: nowrap;
  margin-bottom: 14px;
  padding-bottom: 3px;
  -webkit-overflow-scrolling: touch;
}

.tab {
  flex: 0 0 auto;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--charcoal);
  padding: 10px 12px;
  font-weight: 900;
}

.tab.active {
  background: var(--mysteria);
  color: white;
  border-color: var(--mysteria);
}

html[data-theme="dark"] .tab.active {
  background: var(--cream);
  color: #1b1938;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.info-item {
  padding: 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--paper) 92%, var(--canvas));
  min-width: 0;
}

.info-label {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 900;
  margin-bottom: 4px;
}

.info-value {
  font-weight: 800;
  overflow-wrap: anywhere;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.empty {
  padding: 26px 16px;
  text-align: center;
  color: var(--muted);
}

.table {
  width: 100%;
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table thead, .table tbody, .table tr {
  width: 100%;
}

.table th, .table td {
  border-bottom: 1px solid var(--border);
  padding: 12px 8px;
  text-align: left;
  vertical-align: top;
  min-width: 132px;
}

.table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(27,25,56,.45);
  display: grid;
  align-items: end;
  z-index: 30;
  padding: 0;
}

.modal {
  width: 100%;
  max-height: 92vh;
  overflow: auto;
  background: var(--paper);
  color: var(--charcoal);
  border-radius: 18px 18px 0 0;
  box-shadow: 0 40px 120px rgba(0,0,0,.24);
  padding: 18px;
  border: 1px solid var(--border);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.form-grid .full { grid-column: auto; }

.form-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 18px;
}

label {
  display: grid;
  gap: 7px;
  font-weight: 800;
  font-size: 13px;
}

.toast-host {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 14px;
  display: grid;
  gap: 10px;
  z-index: 40;
}

.toast {
  background: var(--charcoal);
  color: var(--paper);
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  width: 100%;
}

html[data-theme="dark"] .toast {
  background: var(--cream);
  color: #1b1938;
}

/* Tablet and up */
@media (min-width: 640px) {
  .workspace { padding: 0 20px 32px; }
  .top-banner {
    grid-template-columns: minmax(0,1fr) auto;
    align-items: center;
  }
  .banner-controls {
    grid-template-columns: auto auto;
    justify-content: end;
  }
  .control-label {
    display: flex;
    align-items: center;
  }
  .control-label select {
    min-width: 132px;
  }
  .grid-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .toolbar {
    grid-template-columns: minmax(0, 1fr) 180px;
  }
  .list-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .info-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .form-grid .full { grid-column: 1 / -1; }
  .form-actions {
    display: flex;
    justify-content: flex-end;
  }
  .modal-backdrop {
    place-items: center;
    padding: 24px;
  }
  .modal {
    width: min(760px, 100%);
    border-radius: var(--radius-lg);
    padding: 24px;
  }
  .toast-host {
    top: 88px;
    right: 22px;
    left: auto;
    bottom: auto;
    max-width: min(390px, calc(100vw - 44px));
  }
}

/* Laptop and up */
@media (min-width: 980px) {
  .app-shell {
    display: grid;
    grid-template-columns: 284px minmax(0,1fr);
  }
  .sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 26px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .nav {
    display: grid;
    overflow: visible;
    margin-top: 38px;
  }
  .nav-item {
    width: 100%;
  }
  .sidebar-footer {
    display: grid;
    gap: 16px;
  }
  .workspace {
    padding: 0 34px 34px;
    max-width: 1460px;
    margin: 0 auto;
  }
  .top-banner {
    min-height: 72px;
    padding: 16px 0;
    border-bottom: 0;
  }
  .page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 24px;
  }
  h1 {
    font-size: clamp(44px, 5vw, 62px);
  }
  .card { padding: 20px; }
  .panel { padding: 24px; }
  .grid-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
  }
  .toolbar {
    grid-template-columns: minmax(0,1fr) 180px 180px auto;
    gap: 12px;
  }
  .list-grid {
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 14px;
  }
  .entity-card {
    min-height: 220px;
    align-content: space-between;
    gap: 16px;
  }
  .meta-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
  }
  .detail-layout {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 18px;
  }
  .tabs {
    flex-wrap: wrap;
    overflow: visible;
  }
  .table {
    display: table;
    overflow: visible;
  }
  .table th, .table td {
    min-width: 0;
  }
}

/* Desktop-wide */
@media (min-width: 1240px) {
  .list-grid {
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  }
}

/* v4 additions: BMI chart, appointment payments and notification preview */
.chart-card {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--paper) 94%, var(--canvas));
  padding: 10px;
  margin-bottom: 12px;
}

.bmi-chart {
  width: 100%;
  min-width: 340px;
  height: auto;
  display: block;
}

.bmi-chart line {
  stroke: color-mix(in srgb, var(--border) 80%, var(--muted));
  stroke-width: 2;
}

.bmi-chart polyline {
  fill: none;
  stroke: var(--mysteria);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

html[data-theme="dark"] .bmi-chart polyline {
  stroke: var(--lavender);
}

.bmi-chart circle {
  fill: var(--cream);
  stroke: var(--mysteria);
  stroke-width: 3;
}

html[data-theme="dark"] .bmi-chart circle {
  stroke: var(--lavender);
}

.bmi-chart text {
  fill: var(--charcoal);
  font-size: 20px;
  font-weight: 900;
}

.mail-preview {
  display: grid;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--paper) 94%, var(--canvas));
  padding: 14px;
}

.mail-preview pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 0;
  line-height: 1.45;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: color-mix(in srgb, var(--canvas) 80%, var(--paper));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}

@media (min-width: 980px) {
  .chart-card { padding: 16px; }
  .bmi-chart { min-width: 0; }
}