/**
 * Portfolio interactive demo (fs-*) — uses tokens from shell.css :root
 */
.shell-content .fs-deck {
  max-width: none;
  width: 100%;
  margin: 0;
  padding-right: 0;
}

.fs-hero {
  margin-bottom: 2.5rem;
  padding-top: 0.25rem;
}
.fs-hero--centered {
  text-align: center;
}
.fs-hero--centered .fs-title {
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 0 42px rgba(255, 193, 7, 0.12);
}
.fs-hero-context {
  margin: 0 auto 1rem;
  max-width: min(36rem, 100%);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-2);
}
.fs-title {
  margin: 0 0 0.65rem;
  font-size: clamp(1.45rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--text-1);
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.fs-subtitle {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-2);
  max-width: min(42rem, 100%);
}
.fs-subtitle--centered {
  margin-left: auto;
  margin-right: auto;
}
.fs-hero--centered .fs-stats {
  justify-content: center;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  padding-top: 1.35rem;
  margin-top: 0.75rem;
  border-top: 1px solid rgba(255, 193, 7, 0.22);
}
.fs-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.fs-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 6.5rem;
  align-items: center;
  text-align: center;
}
.fs-stats strong {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--main-color);
  line-height: 1;
  letter-spacing: -0.02em;
}
.fs-stats span {
  font-size: 0.72rem;
  color: rgba(255, 193, 7, 0.82);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.fs-section {
  margin-bottom: 2.5rem;
}
.fs-section-title {
  margin: 0 0 1rem;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--main-color);
  letter-spacing: normal;
  padding-left: 0.65rem;
  border-left: 3px solid rgba(255, 193, 7, 0.55);
}
.fs-section-lead {
  margin: 0 0 1.15rem;
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.6;
  max-width: min(40rem, 100%);
}

.fs-flow {
  margin: 0 0 1rem;
  padding-left: 0;
  list-style: none;
  counter-reset: fsflow;
}
.fs-flow li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.65rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-2);
}
.fs-flow-step {
  flex-shrink: 0;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background: var(--card-a);
  border: 1px solid var(--border-soft);
  color: var(--main-color);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fs-scope-note {
  margin: 0;
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-3);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
}
.fs-scope-note em {
  color: var(--text-2);
  font-style: italic;
}

.fs-run-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
.fs-run-card {
  padding: 1.35rem 1.4rem;
  min-height: 100%;
  background: linear-gradient(159deg, var(--card-a) 0%, var(--card-b) 100%);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  box-shadow: var(--shadow-2);
}
.fs-run-card-title {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--main-color);
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.fs-run-card-title i {
  color: var(--main-color);
  opacity: 0.85;
}
.fs-run-card-lead {
  margin: 0 0 1rem;
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.5;
}
.fs-run-card-lead code {
  font-size: 0.85em;
  color: var(--main-color);
}

.fs-form-compact .fs-form-row {
  margin-bottom: 0.85rem;
}
.fs-form-row--tight {
  margin-bottom: 0.5rem !important;
}
.fs-file-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-3);
  margin-bottom: 0.35rem;
}
.fs-file-label .fs-optional {
  font-weight: 400;
  color: var(--text-3);
}
.fs-file-input {
  font-size: 0.85rem;
  color: var(--text-1);
  max-width: 100%;
}
.fs-check-label {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-2);
  cursor: pointer;
}
.fs-check-label input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}
.fs-sample-hint {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.45;
}
.fs-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
}
.fs-form-actions--split {
  justify-content: space-between;
  align-items: center;
}
.fs-form-actions--stacked {
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
}
.fs-btn--wide {
  width: 100%;
}
.fs-btn i {
  margin-right: 0.35rem;
  opacity: 0.9;
}
.fs-muted {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-3);
  line-height: 1.45;
}
.fs-muted a {
  color: var(--main-color);
  font-weight: 600;
  text-decoration: none;
}
.fs-muted a:hover {
  text-decoration: underline;
}

.fs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.fs-btn--primary {
  background: var(--main-color);
  color: rgb(25, 25, 35);
  border-color: var(--main-color);
}
.fs-btn--primary:hover:not(:disabled) {
  filter: brightness(1.06);
}
.fs-btn--ghost {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border-soft);
}
.fs-btn--ghost:hover:not(:disabled) {
  color: var(--text-1);
  border-color: var(--text-3);
  background: rgba(255, 255, 255, 0.04);
}
.fs-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.fs-btn.is-loading {
  position: relative;
  color: transparent !important;
}
.fs-btn.is-loading::after {
  content: "";
  position: absolute;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(250, 250, 252, 0.25);
  border-top-color: var(--main-color);
  border-radius: 50%;
  animation: fs-spin 0.7s linear infinite;
}
@keyframes fs-spin {
  to {
    transform: rotate(360deg);
  }
}

.fs-cli-block {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}
.fs-cli {
  flex: 1 1 12rem;
  margin: 0;
  padding: 0.65rem 0.85rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  overflow-x: auto;
}
.fs-cli code {
  font-family: ui-monospace, "Courier New", monospace;
  font-size: 0.78rem;
  color: var(--text-1);
  line-height: 1.45;
}
.fs-cli-meta {
  margin: 0 0 0.45rem;
  font-size: 0.75rem;
  color: var(--text-3);
  line-height: 1.45;
}
.fs-cli-meta code {
  font-size: 0.85em;
  color: var(--main-color);
}

.fs-quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-top: 0.5rem;
}
.fs-quick-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-2);
  text-decoration: none;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.15);
  transition: color 0.2s, border-color 0.2s;
}
.fs-quick-link:hover {
  color: var(--main-color);
  border-color: rgba(255, 193, 7, 0.35);
}
.fs-quick-link i {
  opacity: 0.85;
}

.fs-hidden {
  display: none !important;
}
.fs-error {
  margin: 1.25rem 0;
  padding: 0.85rem 1rem;
  font-size: 0.82rem;
  line-height: 1.5;
  white-space: pre-wrap;
  color: #f08070;
  background: rgba(240, 128, 112, 0.08);
  border: 1px solid rgba(240, 128, 112, 0.35);
  border-radius: 8px;
  max-width: none;
  width: 100%;
}

.fs-results {
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-soft);
  max-width: none;
  width: 100%;
}
.fs-results-title {
  margin-bottom: 0.35rem;
}
.fs-results-hint {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: var(--text-3);
}

.fs-panel {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
}
.fs-panel-title {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--main-color);
}
.fs-panel-caption {
  margin: 0 0 0.5rem;
  font-size: 0.76rem;
  color: var(--text-3);
}
.fs-pre {
  margin: 0;
  font-family: ui-monospace, "Courier New", monospace;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--text-2);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 14rem;
  overflow: auto;
}

.fs-table-wrap {
  overflow-x: auto;
  border-radius: 6px;
  border: 1px solid var(--border-soft);
}
.fs-data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, "Courier New", monospace;
  font-size: 0.72rem;
}
.fs-data-table th,
.fs-data-table td {
  padding: 0.4rem 0.55rem;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-2);
}
.fs-data-table th {
  color: var(--main-color);
  font-weight: 600;
  background: rgba(0, 0, 0, 0.25);
}

.fs-badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 4px;
}
.fs-badge.ok {
  background: rgba(80, 200, 120, 0.2);
  color: #8fd9a8;
}
.fs-badge.fail {
  background: rgba(240, 128, 112, 0.15);
  color: #f0a090;
}