:root {
  --bg: #07111f;
  --bg-deep: #020814;
  --panel: rgba(13, 25, 44, 0.9);
  --panel-strong: rgba(17, 33, 59, 0.96);
  --panel-soft: rgba(12, 24, 43, 0.72);
  --line: rgba(134, 178, 255, 0.18);
  --text: #e9f3ff;
  --muted: #9ab2d1;
  --accent: #5dd6ff;
  --accent-strong: #82f0ff;
  --accent-warm: #67f0c3;
  --danger: #ff8f98;
  --danger-soft: rgba(255, 143, 152, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Segoe UI", "Aptos", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(93, 214, 255, 0.2), transparent 30%),
    radial-gradient(circle at 85% 0%, rgba(103, 240, 195, 0.12), transparent 24%),
    radial-gradient(circle at 50% 120%, rgba(89, 122, 255, 0.2), transparent 30%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

button,
input,
select,
textarea {
  font: inherit;
}

.is-hidden {
  display: none !important;
}

.auth-shell,
.app-shell {
  width: min(1180px, calc(100% - 24px));
  margin: 0 auto;
  padding: 18px 0 28px;
}

.auth-shell {
  padding-top: 34px;
}

.auth-hero,
.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 28%),
    var(--panel);
  box-shadow: var(--shadow);
}

.auth-hero {
  padding: 28px 24px;
  margin-bottom: 16px;
}

.auth-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.auth-panel {
  padding: 22px;
}

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

.auth-status {
  margin-top: 14px;
  padding: 0 4px;
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 24px 22px 10px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.02;
  font-weight: 700;
}

h1 {
  font-size: clamp(2.2rem, 8vw, 4.2rem);
}

h2 {
  font-size: clamp(1.45rem, 5vw, 2.45rem);
}

h3 {
  font-size: 1.15rem;
}

.header-copy,
.panel-copy,
.status-text,
label,
.stat-card span,
.warning-card,
.hero-chip,
.result-meta,
.selected-meta,
.log-meta,
.subtle-text {
  color: var(--muted);
  line-height: 1.5;
}

.header-copy,
.auth-copy {
  margin: 10px 0 0;
  max-width: 60ch;
}

.tab-bar {
  display: grid;
  grid-template-columns: repeat(5, minmax(90px, 1fr));
  gap: 10px;
  position: sticky;
  top: 12px;
  z-index: 20;
  margin: 0 0 18px;
  padding: 0 12px;
  overflow-x: auto;
}

.tab-button {
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 18, 33, 0.8);
  color: var(--muted);
  cursor: pointer;
  transition: all 160ms ease;
}

.tab-button.is-active {
  color: #041321;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  border-color: transparent;
  box-shadow: 0 12px 32px rgba(93, 214, 255, 0.25);
}

.tab-panels {
  display: grid;
}

.tab-panel {
  display: none;
  gap: 16px;
}

.tab-panel.is-active {
  display: grid;
}

.panel {
  padding: 22px;
}

.hero-panel {
  overflow: hidden;
  position: relative;
}

.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -32px -48px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(130, 240, 255, 0.28), transparent 70%);
}

.hero-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(130, 240, 255, 0.18);
  background: rgba(8, 23, 41, 0.6);
}

.panel-heading {
  margin-bottom: 16px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field-span {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

input,
select,
textarea,
button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

input,
select,
textarea {
  min-height: 52px;
  padding: 12px 14px;
  color: var(--text);
  background: rgba(5, 16, 29, 0.95);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

button {
  min-height: 52px;
  padding: 12px 16px;
  color: #03111f;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  cursor: pointer;
}

.secondary-button {
  background: rgba(15, 31, 54, 0.98);
  color: var(--text);
}

.ghost-button {
  background: transparent;
  color: var(--muted);
}

.checkbox-field {
  grid-column: 1 / -1;
  grid-template-columns: auto 1fr;
  align-items: center;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
  min-height: 18px;
}

.summary-panel {
  background:
    radial-gradient(circle at top right, rgba(93, 214, 255, 0.1), transparent 34%),
    var(--panel-strong);
}

.dose-callout strong {
  display: block;
  margin-top: 6px;
  font-size: clamp(2.4rem, 10vw, 4.8rem);
  line-height: 0.95;
}

.dose-callout p {
  margin: 10px 0 0;
}

.stats-grid,
.chart-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.stat-card,
.result-card,
.selected-item,
.warning-card,
.log-item,
.care-card,
.recommendation-card,
.patient-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel-soft);
  padding: 16px;
}

.stat-card strong,
.care-card strong,
.recommendation-card strong,
.patient-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.15rem;
  color: var(--text);
}

.warning-list,
.results,
.selected-list,
.log-list,
.recommendation-list {
  display: grid;
  gap: 12px;
}

.warning-list {
  margin-top: 18px;
}

.warning-card {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: rgba(255, 143, 152, 0.18);
}

.search-bar,
.action-row {
  display: grid;
  gap: 10px;
}

.search-bar {
  grid-template-columns: 1fr auto;
}

.action-row {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-top: 16px;
}

.result-top,
.result-action,
.selected-item,
.total-strip,
.log-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.result-card,
.log-item,
.recommendation-card,
.patient-card {
  display: grid;
  gap: 10px;
}

.selected-item .ghost-button,
.result-action button {
  width: auto;
}

.chart-frame {
  margin-top: 16px;
  padding: 10px;
  border-radius: var(--radius-lg);
  background: rgba(4, 12, 24, 0.9);
  border: 1px solid var(--line);
}

#bg-chart {
  width: 100%;
  height: auto;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 980px) {
  .tab-panel[data-tab-panel="dose"] {
    grid-template-columns: 1.08fr 0.92fr;
  }

  .tab-panel[data-tab-panel="dose"] .hero-panel,
  .tab-panel[data-tab-panel="dose"] .summary-panel {
    grid-column: span 2;
  }

  .tab-panel[data-tab-panel="foods"],
  .tab-panel[data-tab-panel="logbook"],
  .tab-panel[data-tab-panel="care"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tab-panel[data-tab-panel="logbook"] .chart-panel {
    grid-column: span 2;
  }
}

@media (max-width: 820px) {
  .auth-panels,
  .field-grid,
  .search-bar {
    grid-template-columns: 1fr;
  }

  .app-shell,
  .auth-shell {
    width: min(100% - 14px, 1180px);
    padding-top: 10px;
  }

  .app-header {
    padding: 16px 10px 8px;
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .tab-bar {
    top: 8px;
    padding: 0 4px;
  }

  .panel,
  .auth-panel,
  .auth-hero {
    padding: 18px;
    border-radius: 24px;
  }
}