:root {
  --bg: #f4f1ea;
  --panel: rgba(255, 255, 255, 0.96);
  --panel-strong: #ffffff;
  --ink: #1e293b;
  --muted: #5b6474;
  --line: rgba(15, 23, 42, 0.08);
  --accent: #cf6f2d;
  --accent-soft: rgba(207, 111, 45, 0.14);
  --accent-deep: #8a4313;
  --success: #15803d;
  --warning: #b45309;
  --error: #b91c1c;
  --shadow: 0 24px 60px rgba(30, 41, 59, 0.08);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(207, 111, 45, 0.18), transparent 32%),
    linear-gradient(180deg, #f8f4ed 0%, #f2eee7 100%);
}

a {
  color: var(--accent-deep);
}

code {
  font-family: "SFMono-Regular", "Menlo", monospace;
  background: rgba(15, 23, 42, 0.06);
  padding: 0.15rem 0.35rem;
  border-radius: 0.35rem;
}

.app-shell {
  width: min(1480px, calc(100vw - 2rem));
  margin: 1rem auto;
}

.app-header {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.brand-block h1 {
  margin: 0.2rem 0 0.45rem;
  font-size: clamp(2rem, 4vw, 3.1rem);
  letter-spacing: 0.04em;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.24em;
}

.brand-copy {
  margin: 0.25rem 0;
  max-width: 70rem;
  color: var(--muted);
  line-height: 1.55;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.nav-link,
.primary-button,
.secondary-button,
button,
select,
input,
textarea {
  font: inherit;
}

.nav-link {
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.06);
  color: var(--ink);
  cursor: pointer;
}

.nav-link.is-active {
  background: var(--accent);
  color: #fff8f1;
}

.workspace {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.sidebar-card,
.card,
.metric-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.sidebar-card {
  position: sticky;
  top: 1rem;
  padding: 1.2rem;
}

.content {
  min-width: 0;
}

.panel {
  display: none;
}

.panel.is-active {
  display: block;
}

.page-heading {
  margin-bottom: 1rem;
}

.page-heading h2 {
  margin: 0.2rem 0 0;
  font-size: 1.9rem;
}

.section-kicker,
.sidebar-kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.muted,
.field-help,
.sidebar-note,
.analysis-history-empty {
  color: var(--muted);
}

.sidebar-import-help,
.sidebar-file-info {
  margin: 0.55rem 0;
}

.sidebar-section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.form-grid--single {
  grid-template-columns: 1fr;
}

.form-grid label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

.checkbox-row {
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.55rem;
}

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 16px;
  padding: 0.75rem 0.85rem;
  background: var(--panel-strong);
  color: var(--ink);
}

select[multiple] {
  min-height: 10rem;
}

input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
}

.primary-button,
.secondary-button {
  border: 0;
  border-radius: 18px;
  padding: 0.8rem 1rem;
  cursor: pointer;
}

.primary-button {
  width: 100%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff8f1;
  font-weight: 700;
}

.primary-button--launch {
  margin-top: 1rem;
}

.secondary-button {
  background: rgba(15, 23, 42, 0.08);
  color: var(--ink);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1rem;
  padding: 0.7rem 0.85rem;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.05);
}

.status-dot {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 999px;
  background: #64748b;
}

.status-dot.is-active {
  background: var(--success);
  box-shadow: 0 0 0 0 rgba(21, 128, 61, 0.45);
  animation: pulse-green 1.25s infinite;
}

.status-dot.is-waiting {
  background: #f59e0b;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.45);
  animation: pulse-orange 1.25s infinite;
}

.status-dot.is-error {
  background: var(--error);
}

.analysis-history {
  display: grid;
  gap: 0.55rem;
}

.history-item {
  padding: 0.75rem 0.85rem;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.05);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.metric-card {
  padding: 1rem 1.1rem;
}

.metric-card strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.5rem;
}

.metric-label {
  color: var(--muted);
  font-size: 0.88rem;
}

.section-stack {
  display: grid;
  gap: 1rem;
}

.card {
  padding: 1.15rem;
}

.card h3 {
  margin-top: 0;
}

.result-pane,
.artifact-list,
.docs-sample,
.preview-box,
.code-box {
  min-height: 4rem;
}

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

progress {
  width: 100%;
  height: 0.8rem;
}

.logs,
.preview-box,
.code-box {
  overflow: auto;
  padding: 1rem;
  border-radius: 18px;
  background: #131b2b;
  color: #edf2ff;
  white-space: pre-wrap;
  line-height: 1.45;
}

.explorer-grid {
  display: grid;
  grid-template-columns: 380px minmax(0, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.card--plot {
  min-height: 34rem;
}

.explorer-plot {
  display: block;
  width: 100%;
  border-radius: 18px;
  background: #fff;
}

.docs-intro {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.05);
}

.docs-sample {
  max-height: 42rem;
  overflow: auto;
  padding-right: 0.5rem;
}

.doc {
  margin: 0;
  padding: 0.55rem 1rem;
  border-left: 3px solid #9be;
  background: rgba(15, 23, 42, 0.02);
  border-radius: 0 14px 14px 0;
}

.docname {
  margin-bottom: 0.4rem;
  color: #4676a6;
  font-size: 0.82rem;
}

.highlight {
  background: #fff17d;
}

.docs-sample hr {
  margin: 0.75rem 0;
  border: 0;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.artifact-list {
  display: grid;
  gap: 0.8rem;
}

.artifact-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.05);
}

.artifact-item a {
  font-weight: 700;
}

.empty-state {
  color: var(--muted);
}

.table-wrap {
  overflow: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.65rem 0.7rem;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  text-align: left;
  vertical-align: top;
}

.prose-card p {
  line-height: 1.6;
}

@keyframes pulse-green {
  0% { box-shadow: 0 0 0 0 rgba(21, 128, 61, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(21, 128, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(21, 128, 61, 0); }
}

@keyframes pulse-orange {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.45); }
  70% { box-shadow: 0 0 0 12px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

@media (max-width: 1100px) {
  .workspace,
  .explorer-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .sidebar-card {
    position: static;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100vw - 1rem, 100%);
  }

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

  .artifact-item {
    flex-direction: column;
    align-items: flex-start;
  }
}