:root {
  --bg: #f3ede2;
  --bg-secondary: #efe2cd;
  --surface: rgba(255, 251, 244, 0.82);
  --surface-strong: rgba(255, 248, 238, 0.94);
  --line: rgba(56, 63, 61, 0.12);
  --text: #1f2424;
  --muted: #596463;
  --accent: #ea6a36;
  --accent-strong: #c34d1c;
  --accent-cool: #198c8f;
  --danger: #bc2f2f;
  --shadow: 0 24px 60px rgba(91, 63, 38, 0.12);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-sans: "Segoe UI Variable", "Aptos", "Trebuchet MS", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at 10% 15%, rgba(234, 106, 54, 0.22), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(25, 140, 143, 0.16), transparent 24%),
    radial-gradient(circle at 84% 78%, rgba(239, 202, 130, 0.24), transparent 22%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-secondary) 52%, #f6f2ea 100%);
  color: var(--text);
  font-family: var(--font-sans);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(32px);
  opacity: 0.55;
}

body::before {
  width: 280px;
  height: 280px;
  top: 18%;
  right: -80px;
  background: rgba(234, 106, 54, 0.16);
}

body::after {
  width: 320px;
  height: 320px;
  bottom: -120px;
  left: -60px;
  background: rgba(25, 140, 143, 0.12);
}

.page-shell {
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.hero,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius-xl);
  animation: rise-in 520ms ease-out;
}

.hero-copy h1,
.section-heading h2,
.subsection-heading h3 {
  margin: 0;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  font-size: clamp(2rem, 3vw, 3.6rem);
  line-height: 0.95;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-subtitle,
.section-heading p,
.subsection-heading p,
.field span,
.event-meta,
.status-label,
.preview-meta,
.pill-subtext {
  color: var(--muted);
}

.hero-status {
  display: grid;
  gap: 14px;
  align-content: start;
}

.status-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface-strong);
  border-radius: var(--radius-md);
  border: 1px solid rgba(56, 63, 61, 0.08);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 98px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pill-online {
  background: rgba(25, 140, 143, 0.14);
  color: #0f6c6d;
}

.pill-offline {
  background: rgba(188, 47, 47, 0.14);
  color: var(--danger);
}

.pill-warning {
  background: rgba(234, 106, 54, 0.14);
  color: var(--accent-strong);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 20px;
  margin-top: 22px;
}

.panel {
  border-radius: var(--radius-lg);
  padding: 22px;
}

.controls-panel,
.summary-panel {
  grid-column: span 1;
}

.preview-panel,
.event-panel {
  grid-column: span 1;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin-bottom: 18px;
}

.section-heading p,
.subsection-heading p {
  margin: 0;
  max-width: 34rem;
}

.control-grid,
.capture-grid,
.parameter-grid,
.summary-cards {
  display: grid;
  gap: 14px;
}

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

.capture-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  align-items: end;
}

.parameter-grid,
.summary-cards {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.field,
.parameter-card,
.summary-card,
.preview-card,
.event-item {
  background: var(--surface-strong);
  border: 1px solid rgba(56, 63, 61, 0.08);
  border-radius: var(--radius-md);
}

.field {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.field strong {
  color: var(--accent-strong);
  font-size: 1rem;
}

.subsection {
  margin-top: 24px;
}

.session-panel {
  display: grid;
  gap: 14px;
}

.session-status-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.pending-session-summary {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.pending-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 249, 241, 0.9);
  border: 1px solid rgba(56, 63, 61, 0.08);
}

.pending-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--accent-strong);
}

.pending-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.session-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primitive-error-banner {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(188, 47, 47, 0.1);
  border: 1px solid rgba(188, 47, 47, 0.16);
  color: var(--danger);
}

.primitive-error-banner strong {
  display: block;
  margin-bottom: 4px;
}

.hidden {
  display: none !important;
}

.subsection-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: baseline;
  margin-bottom: 12px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

button,
select {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
}

button {
  cursor: pointer;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background-color 140ms ease,
    border-color 140ms ease;
}

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

button:active {
  transform: translateY(0);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

select,
input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  background: #fffdfa;
  border: 1px solid rgba(56, 63, 61, 0.14);
  color: var(--text);
}

.filter-input {
  margin-bottom: 12px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.inline-checkbox {
  align-content: start;
}

.inline-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 4px 0 0;
  accent-color: var(--accent-cool);
}

.ghost-button,
.preset-button,
.group-button {
  padding: 11px 14px;
  background: #fff9f1;
  border-color: rgba(56, 63, 61, 0.12);
  color: var(--text);
}

.preset-button.active,
.group-button.active {
  background: linear-gradient(135deg, rgba(234, 106, 54, 0.16), rgba(25, 140, 143, 0.16));
  border-color: rgba(234, 106, 54, 0.35);
}

.preset-button.staged,
.group-button.staged,
.ghost-button.staged {
  background: linear-gradient(135deg, rgba(25, 140, 143, 0.16), rgba(234, 106, 54, 0.1));
  border-color: rgba(25, 140, 143, 0.35);
  box-shadow: inset 0 0 0 1px rgba(25, 140, 143, 0.08);
}

.danger-button {
  padding: 12px 16px;
  background: rgba(188, 47, 47, 0.1);
  color: var(--danger);
  border-color: rgba(188, 47, 47, 0.18);
}

.danger-button.is-active {
  background: var(--danger);
  color: #fff8f5;
  box-shadow: 0 16px 30px rgba(188, 47, 47, 0.24);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.preview-card {
  padding: 14px;
  position: relative;
  overflow: hidden;
  animation: rise-in 380ms ease-out;
}

.preview-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: var(--preview-color, #999999);
}

.preview-card-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
}

.preview-card h3 {
  margin: 0;
  font-size: 1rem;
}

.preview-meta {
  margin-top: 2px;
  font-size: 0.86rem;
}

.preview-swatch {
  height: 56px;
  margin-top: 14px;
  border-radius: var(--radius-sm);
  background: var(--preview-color, #999999);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.32);
}

.energy-bar {
  height: 8px;
  margin-top: 12px;
  border-radius: 999px;
  background: rgba(31, 36, 36, 0.08);
  overflow: hidden;
}

.energy-bar > span {
  display: block;
  height: 100%;
  width: var(--energy-width, 0%);
  background: linear-gradient(90deg, var(--preview-color, #999999), rgba(255, 255, 255, 0.84));
}

.sample-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.sample-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--sample-color, #999999);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.48);
}

.parameter-card,
.summary-card,
.event-item {
  padding: 14px;
}

.parameter-card label {
  display: grid;
  gap: 10px;
}

.parameter-card strong,
.summary-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.04rem;
}

.summary-card span {
  color: var(--muted);
  font-size: 0.9rem;
}

.snapshot-json {
  margin: 18px 0 0;
  max-height: 360px;
  overflow: auto;
  padding: 18px;
  border-radius: var(--radius-md);
  background: #1d2222;
  color: #e8eceb;
  font-size: 0.86rem;
  line-height: 1.5;
}

.event-list {
  display: grid;
  gap: 12px;
}

.event-filter-bar {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.event-item {
  display: grid;
  gap: 8px;
}

.event-item.event-info strong {
  color: var(--accent-strong);
}

.event-item.event-warning strong {
  color: #a7631c;
}

.event-item.event-error strong {
  color: var(--danger);
}

.event-code {
  display: inline-flex;
  width: fit-content;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(31, 36, 36, 0.08);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.snapshot-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.snapshot-card {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid rgba(56, 63, 61, 0.08);
}

.snapshot-card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.snapshot-card-header strong {
  display: block;
  margin-bottom: 2px;
}

.snapshot-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-chip {
  display: inline-flex;
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(31, 36, 36, 0.08);
  color: var(--muted);
  font-size: 0.82rem;
}

.event-item strong {
  color: var(--accent-strong);
}

.empty-state {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
  color: var(--muted);
  border: 1px dashed rgba(56, 63, 61, 0.16);
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .layout,
  .hero,
  .control-grid,
  .event-filter-bar {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .subsection-heading {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100vw - 18px, 100%);
    padding-top: 18px;
  }

  .hero,
  .panel {
    padding: 18px;
  }

  .preview-grid,
  .parameter-grid,
  .summary-cards {
    grid-template-columns: 1fr;
  }
}