:root {
  --tfm-bg: #0b1220;
  --tfm-surface: #111827;
  --tfm-panel: #1e293b;
  --tfm-border: #334155;
  --tfm-text: #e2e8f0;
  --tfm-muted: #94a3b8;
  --tfm-accent: #06f;
  --tfm-good: #22c55e;
  --tfm-warn: #f59e0b;
  --tfm-bad: #ef4444;
  --tfm-font: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--tfm-font);
  background: var(--tfm-bg);
  color: var(--tfm-text);
  line-height: 1.5;
}

.tfm-top {
  padding: 20px 24px;
  border-bottom: 1px solid var(--tfm-border);
  background: var(--tfm-surface);
}

.tfm-disclaimer {
  margin: 0 0 18px;
  max-width: 920px;
  color: var(--tfm-muted);
  font-size: 0.9rem;
}

.tfm-disclaimer strong {
  color: var(--tfm-text);
  font-weight: 600;
}

.tfm-interest-form.site-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px 16px;
  align-items: end;
  max-width: 920px;
}

.tfm-interest-form .form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.tfm-interest-form label {
  font-size: 0.85rem;
  color: var(--tfm-muted);
}

.tfm-interest-form .form-required {
  color: var(--tfm-good);
}

.tfm-interest-form .form-optional {
  font-size: 0.8em;
  font-weight: normal;
  color: var(--tfm-muted);
  opacity: 0.85;
}

.tfm-interest-form .form-field--full {
  grid-column: 1 / -1;
}

.tfm-interest-form input,
.tfm-interest-form select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--tfm-border);
  background: var(--tfm-panel);
  color: var(--tfm-text);
  font: inherit;
}

.tfm-interest-form input:focus,
.tfm-interest-form select:focus {
  outline: 2px solid var(--tfm-accent);
  outline-offset: 1px;
}

.tfm-interest-form .cta-button {
  justify-self: start;
  padding: 9px 18px;
  border: none;
  border-radius: 8px;
  background: var(--tfm-accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.tfm-interest-form .cta-button:hover:not(:disabled) {
  filter: brightness(1.08);
}

.tfm-interest-form .cta-button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.tfm-interest-form .form-status {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 0.88rem;
  color: var(--tfm-good);
}

.tfm-interest-form .form-status.form-status--error {
  color: var(--tfm-bad);
}

@media (max-width: 640px) {
  .tfm-interest-form.site-form {
    grid-template-columns: 1fr;
  }

  .tfm-interest-form .cta-button {
    width: 100%;
  }
}

.tfm-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--tfm-border);
  background: var(--tfm-surface);
}

.tfm-header h1 {
  margin: 0 0 6px;
  font-size: 1.45rem;
  font-weight: 650;
}

.tfm-subtitle {
  margin: 0;
  max-width: 720px;
  color: var(--tfm-muted);
  font-size: 0.92rem;
}

.tfm-header-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.tfm-btn {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--tfm-border);
  background: var(--tfm-panel);
  color: var(--tfm-text);
  font: inherit;
  cursor: pointer;
}

.tfm-btn:hover { border-color: var(--tfm-muted); }

.tfm-btn-primary {
  background: var(--tfm-accent);
  border-color: var(--tfm-accent);
  color: #fff;
}

.tfm-layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  min-height: calc(100vh - 100px);
}

@media (max-width: 960px) {
  .tfm-layout { grid-template-columns: 1fr; }
}

.tfm-sidebar {
  border-right: 1px solid var(--tfm-border);
  overflow-y: auto;
  padding: 12px;
}

.tfm-main {
  padding: 16px 20px 40px;
  overflow-y: auto;
}

.tfm-panel {
  background: var(--tfm-panel);
  border: 1px solid var(--tfm-border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 14px;
}

.tfm-panel h2,
.tfm-panel-heading {
  margin: 0 0 12px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--tfm-muted);
}

.tfm-panel--collapsible.tfm-panel--collapsed .tfm-panel-heading {
  margin-bottom: 0;
}

.tfm-panel-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  margin: 0;
  padding: 0;
  border: none;
  background: none;
  color: inherit;
  font: inherit;
  font-size: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  text-align: left;
}

.tfm-panel-toggle:hover {
  color: var(--tfm-text);
}

.tfm-panel-chevron {
  flex-shrink: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.tfm-panel--collapsed .tfm-panel-chevron {
  transform: rotate(-45deg);
}

.tfm-panel--collapsed .tfm-panel-body {
  display: none;
}

.tfm-panel h3 {
  margin: 12px 0 6px;
  font-size: 0.9rem;
}

.tfm-fields { display: flex; flex-direction: column; gap: 10px; }

.tfm-field {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 4px 10px;
  align-items: center;
}

.tfm-field-label {
  grid-column: 1 / -1;
  font-size: 0.82rem;
  color: var(--tfm-muted);
}

.tfm-field-label em {
  font-style: normal;
  opacity: 0.75;
}

.tfm-help {
  display: inline-grid;
  place-items: center;
  width: 1.15rem;
  height: 1.15rem;
  margin-left: 6px;
  border-radius: 999px;
  border: 1px solid var(--tfm-border);
  background: var(--tfm-surface);
  color: var(--tfm-muted);
  font: inherit;
  font-size: 0.72rem;
  line-height: 1;
  cursor: help;
}

.tfm-help:hover,
.tfm-help:focus {
  color: var(--tfm-text);
  border-color: var(--tfm-muted);
}

.tfm-field input[type=range] {
  grid-column: 1;
  width: 100%;
  accent-color: var(--tfm-accent);
}

.tfm-field output {
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  min-width: 3.5em;
  text-align: right;
}

.tfm-select-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
  font-size: 0.82rem;
  color: var(--tfm-muted);
}

.tfm-select-field select {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--tfm-border);
  background: var(--tfm-surface);
  color: var(--tfm-text);
  font: inherit;
}

.tfm-panel-desc {
  margin: 0 0 12px;
  font-size: 0.82rem;
  color: var(--tfm-muted);
  line-height: 1.45;
}

.tfm-num-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
  font-size: 0.82rem;
  color: var(--tfm-muted);
}

.tfm-num-field em {
  font-style: normal;
  opacity: 0.75;
}

.tfm-num-field input {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--tfm-border);
  background: var(--tfm-surface);
  color: var(--tfm-text);
  font: inherit;
  width: 100%;
}

.tfm-num-field input::placeholder {
  color: var(--tfm-muted);
  opacity: 0.65;
}

.tfm-btn-block {
  width: 100%;
  margin-top: 4px;
}

.tfm-auto-result {
  margin-top: 10px;
  font-size: 0.85rem;
}

.tfm-auto-meta {
  font-size: 0.78rem;
  color: var(--tfm-muted);
}

.tfm-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  margin-bottom: 8px;
  cursor: pointer;
}

.tfm-viewer {
  position: relative;
  width: 100%;
  height: min(52vh, 520px);
  min-height: 320px;
  border-radius: 12px;
  border: 1px solid var(--tfm-border);
  overflow: hidden;
  background: #0f172a;
  touch-action: none;
}

.tfm-viewer-canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  cursor: grab;
  outline: none;
  touch-action: none;
}

.tfm-viewer-canvas:active {
  cursor: grabbing;
}

.tfm-viewer-hint {
  margin: 8px 0 16px;
  font-size: 0.78rem;
  color: var(--tfm-muted);
  text-align: center;
}

.tfm-viewer-lod {
  margin: 6px 0 0;
  font-size: 0.76rem;
  color: var(--tfm-warn);
  text-align: center;
  min-height: 1.1em;
}

.tfm-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.tfm-summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 14px;
}

.tfm-summary-panel {
  margin-bottom: 0;
}

.tfm-mass-row-compact {
  margin-top: 12px;
  border-top: 1px solid var(--tfm-border);
  padding-top: 12px;
}

@media (max-width: 960px) {
  .tfm-summary-grid { grid-template-columns: 1fr; }
}

.tfm-metric {
  background: var(--tfm-surface);
  border: 1px solid var(--tfm-border);
  border-radius: 8px;
  padding: 10px 12px;
}

.tfm-metric.good { border-color: var(--tfm-good); }
.tfm-metric.warn { border-color: var(--tfm-warn); }
.tfm-metric.bad { border-color: var(--tfm-bad); }

.tfm-metric-label {
  display: block;
  font-size: 0.72rem;
  color: var(--tfm-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tfm-metric-value {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
}

.tfm-mass-row ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--tfm-muted);
  font-size: 0.88rem;
}

.tfm-joint-result { margin-top: 8px; }

.tfm-joint-verdict {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.tfm-joint-verdict.good { background: rgba(34, 197, 94, 0.15); border: 1px solid var(--tfm-good); }
.tfm-joint-verdict.mid { background: rgba(245, 158, 11, 0.12); border: 1px solid var(--tfm-warn); }
.tfm-joint-verdict.bad { background: rgba(239, 68, 68, 0.12); border: 1px solid var(--tfm-bad); }

.tfm-joint-stats,
.tfm-notes {
  margin: 0;
  padding-left: 1.2em;
  font-size: 0.85rem;
  color: var(--tfm-muted);
}

.tfm-warning {
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--tfm-warn);
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.tfm-warning.ok {
  background: rgba(34, 197, 94, 0.08);
  border-color: var(--tfm-good);
  color: var(--tfm-muted);
}

.tfm-chart-panel canvas {
  display: block;
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--tfm-border);
}

.tfm-chart-note {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: var(--tfm-muted);
}

.tfm-docs ul {
  margin: 0;
  padding-left: 1.2em;
  font-size: 0.88rem;
  color: var(--tfm-muted);
}

.tfm-docs li { margin-bottom: 8px; }

.tfm-disclaimer {
  margin: 14px 0 0;
  font-size: 0.78rem;
  color: var(--tfm-muted);
  font-style: italic;
}