/* Orbitron is requested via the shared Google Fonts <link> in index.html (it is
   used here and in the Stella tab); a CSS @import here would be a serial,
   render-blocking second request. */
#mainTabs {
  gap: 0.25rem;
}

.fm-calculator-pane {
  padding-top: 1rem;
}

.fm-shell {
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(245, 200, 126, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(66, 153, 225, 0.16), transparent 30%),
    linear-gradient(180deg, var(--content-bg) 0%, var(--content-bg-alt) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 26px;
  box-shadow: 0 26px 60px var(--shadow-color);
}

.fm-hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.4rem 1.5rem 1.1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.fm-hero-copy {
  max-width: 760px;
}

.fm-eyebrow {
  margin-bottom: 0.45rem;
  color: var(--accent-warning);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fm-title {
  margin: 0;
  color: var(--content-text);
  font-family: 'Orbitron', monospace;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
}

.fm-lead {
  margin: 0.75rem 0 0;
  color: var(--content-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.fm-view-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

.fm-view-btn {
  min-width: 118px;
  padding: 0.6rem 0.95rem;
  color: var(--content-text);
  font-size: 0.88rem;
  font-weight: 700;
  background: var(--content-bg-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  transition:
    background 0.16s ease,
    color 0.16s ease,
    border-color 0.16s ease,
    box-shadow 0.16s ease;
}

.fm-view-btn:hover {
  background: var(--content-bg);
  border-color: var(--border-strong);
  box-shadow: 0 10px 20px var(--shadow-color);
}

.fm-view-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-hover) 100%);
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(74, 124, 89, 0.25);
}

.fm-info-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.8rem 1.5rem;
  background: var(--content-bg-alt);
  color: var(--content-text-muted);
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-subtle);
}

.fm-info-divider {
  color: var(--content-text-muted);
  opacity: 0.6;
}

.fm-body {
  padding: 1.5rem;
}

.fm-view {
  display: none;
}

.fm-view.active {
  display: block;
}

.fm-panel-intro {
  margin-bottom: 1rem;
}

.fm-panel-intro h4 {
  margin-bottom: 0.3rem;
  color: var(--content-text);
}

.fm-panel-intro p {
  color: var(--content-text-muted);
}

.fm-calculator-pane .card {
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  box-shadow: 0 14px 28px var(--shadow-color);
}

.fm-calculator-pane .card-header {
  border-bottom: 0;
}

.fm-calculator-pane .card-body {
  padding: 1.1rem 1.15rem 1.2rem;
}

.fm-calculator-pane .mb-3 {
  margin-bottom: 0.8rem !important;
}

.fm-calculator-pane .form-label {
  margin-bottom: 0.3rem;
  color: var(--content-text);
}

.fm-submit-btn {
  border-radius: 14px;
  padding-block: 0.8rem;
  font-weight: 700;
}

.fm-results-card {
  min-height: 100%;
}

.fm-results-hint {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.78rem;
}

.fm-empty-state {
  padding: 1.3rem 0.3rem;
  text-align: center;
}

.fm-empty-state h5 {
  margin-bottom: 0.45rem;
  color: var(--content-text);
}

.fm-calculator-pane .alert {
  margin-bottom: 1rem;
  border-radius: 14px;
}

.fm-calculator-pane .result-item {
  margin: 0.5rem 0;
  padding: 0.9rem 0.95rem;
  background: var(--content-bg-alt);
  border-left: 4px solid var(--accent-success);
  border-radius: 14px;
}

.fm-calculator-pane .result-value {
  color: var(--accent-success);
  font-size: 1.28rem;
  font-weight: 700;
}

.fm-calculator-pane .pass-checkbox {
  height: 100%;
  margin: 0;
  padding: 0.8rem;
  background: var(--content-bg-alt);
  border: 1px solid rgba(218, 184, 106, 0.45);
  border-radius: 16px;
  cursor: pointer;
  transition:
    transform 0.14s ease,
    box-shadow 0.14s ease,
    border-color 0.14s ease;
}

.fm-calculator-pane .pass-checkbox:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px var(--shadow-color);
}

.fm-calculator-pane .pass-checkbox * {
  cursor: pointer;
}

.fm-calculator-pane .premium-pass {
  background: linear-gradient(180deg, rgba(140, 104, 209, 0.08) 0%, var(--content-bg) 100%);
  border-color: rgba(140, 104, 209, 0.38);
}

.fm-calculator-pane .elite-pass {
  background: linear-gradient(180deg, rgba(255, 107, 53, 0.08) 0%, var(--content-bg) 100%);
  border-color: rgba(255, 107, 53, 0.34);
}

.fm-calculator-pane .data-table-container {
  max-height: 70vh;
  overflow: auto;
  background: var(--content-bg);
  border-radius: 0 0 18px 18px;
}

.fm-calculator-pane .data-table {
  font-size: 0.84rem;
}

.fm-calculator-pane .data-table th {
  position: sticky;
  top: 0;
  z-index: 10;
  color: #fff;
  white-space: nowrap;
  background: var(--accent-primary);
}

.fm-calculator-pane .data-table td {
  white-space: nowrap;
  border-right: 1px solid var(--border-subtle);
}

.fm-calculator-pane .furthest-barrier-row {
  position: relative;
}

.fm-calculator-pane .furthest-barrier-row::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--accent-success);
}

.fm-calculator-pane .breakpoint-line {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 30px;
  margin: 8px 0;
  padding: 0.2rem 0.6rem;
  color: #fff;
  font-size: 0.74rem;
  font-weight: 700;
  text-align: center;
  border-radius: 10px;
}

.fm-calculator-pane .breakpoint-line.free-user {
  background: linear-gradient(90deg, #28a745, #20c997);
}

.fm-calculator-pane .breakpoint-line.premium-user {
  background: linear-gradient(90deg, #17a2b8, #6f42c1);
}

.fm-calculator-pane .breakpoint-line.elite-user {
  background: linear-gradient(90deg, #ffc107, #fd7e14);
}

.fm-calculator-pane #fcChartContainer {
  position: relative;
  height: 230px;
  margin: 12px 0;
  padding: 8px;
  background: var(--content-bg-alt);
  border-radius: 14px;
}