/* Fault Lines — all rules are scoped to #fl so nothing leaks into the shared site header/footer. */

#fl {
  --fl-bg: #eef1ea;
  --fl-panel: rgba(255, 255, 255, .95);
  --fl-panel-solid: #ffffff;
  --fl-ink: var(--tlg-ink, #15191f);
  --fl-muted: var(--tlg-muted, #3f4754);
  --fl-border: var(--tlg-border, #dfe2d8);
  --fl-accent: #b45309;
  --fl-accent-dark: #92400e;
  --fl-accent-ink: #ffffff;
  --fl-focus: #1d4ed8;
  --fl-good: #0f7a4a;
  --fl-bad: #b42318;
  --fl-chip: var(--tlg-chip-bg, #f1f3ec);
  /* Okabe–Ito colorblind-safe set. Stress + wave colors are always paired with shapes/labels. */
  --fl-tension: #0072b2;
  --fl-compression: #d55e00;
  --fl-shear: #009e73;
  --fl-p: #0072b2;
  --fl-s: #d55e00;
  --fl-love: #009e73;
  --fl-rayleigh: #cc79a7;
  --fl-header-h: 69px;
  --fl-bar-h: 52px;
  color: var(--fl-ink);
  font-family: var(--tlg-font-body, system-ui, sans-serif);
  font-size: 15px;
  line-height: 1.4;
  background: var(--fl-bg);
}
html[data-theme="dark"] #fl {
  --fl-bg: #111a20;
  --fl-panel: rgba(25, 35, 44, .95);
  --fl-panel-solid: #19232c;
  --fl-accent: #f59e0b;
  --fl-accent-dark: #fbbf24;
  --fl-accent-ink: #1b1204;
  --fl-focus: #93c5fd;
  --fl-good: #4ade80;
  --fl-bad: #fca5a5;
  --fl-tension: #56b4e9;
  --fl-p: #56b4e9;
}
#fl *, #fl *::before, #fl *::after { box-sizing: border-box; }
#fl [hidden] { display: none !important; }
#fl h1, #fl h2, #fl h3 { font-family: var(--tlg-font-heading, system-ui, sans-serif); margin: 0; }
#fl button:where(:not(.lgt-btn)) { font: inherit; color: inherit; }
#fl :focus-visible { outline: 3px solid var(--fl-focus); outline-offset: 2px; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
#fl .fl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 40px; padding: 7px 14px; border: 1.5px solid var(--fl-border); border-radius: 10px;
  background: var(--fl-panel-solid); color: var(--fl-ink); font-weight: 700; font-size: 14px; cursor: pointer;
  white-space: nowrap; touch-action: manipulation;
}
#fl .fl-btn:hover:not(:disabled) { border-color: var(--fl-accent); }
#fl .fl-btn:disabled { opacity: .5; cursor: not-allowed; }
#fl .fl-btn[aria-pressed="true"], #fl .fl-btn[aria-expanded="true"] { background: var(--fl-accent); border-color: var(--fl-accent); color: var(--fl-accent-ink); }
#fl .fl-btn--primary {
  min-height: 48px; padding: 10px 26px; font-size: 16px; border: 0; border-radius: 999px;
  background: var(--fl-accent); color: var(--fl-accent-ink); box-shadow: 0 6px 18px -8px rgba(0, 0, 0, .55);
}
#fl .fl-btn--primary:hover:not(:disabled) { background: var(--fl-accent-dark); }
#fl .fl-btn--ghost { background: transparent; }
#fl .fl-btn--small { min-height: 34px; padding: 5px 11px; font-size: 13px; }
#fl .fl-btn--icon { width: 40px; padding: 0; }
#fl .fl-btn--icon svg { width: 20px; height: 20px; }
#fl .fl-btn--good { border-color: var(--fl-good); }

/* ── Start screen ────────────────────────────────────────────────────────── */
#fl .fl-start { min-height: calc(100vh - var(--fl-header-h)); display: flex; align-items: flex-start; justify-content: center; padding: 28px 16px 40px;
  background:
    repeating-linear-gradient(180deg, transparent 0 46px, rgba(180, 83, 9, .06) 46px 48px),
    linear-gradient(180deg, var(--fl-bg), color-mix(in srgb, var(--fl-bg) 80%, #d6b98c));
}
#fl .fl-start-inner { width: min(100%, 920px); }
#fl .fl-kicker { margin: 0 0 4px; color: var(--fl-accent-dark); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: 12px; }
#fl .fl-start h1 { font-size: clamp(34px, 5vw, 52px); letter-spacing: -.03em; }
#fl .fl-start-sub { margin: 6px 0 18px; font-size: 17px; color: var(--fl-muted); max-width: 60ch; }
#fl .fl-start-h2 { font-size: 18px; margin: 18px 0 10px; }
#fl .fl-track-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
#fl .fl-track-card {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px; text-align: left; cursor: pointer;
  padding: 18px 20px; min-height: 120px; border: 2px solid var(--fl-border); border-radius: 18px; background: var(--fl-panel-solid);
  box-shadow: 0 16px 30px -26px rgba(0, 0, 0, .6);
}
#fl .fl-track-card:hover { border-color: var(--fl-accent); }
#fl .fl-track-title { font-family: var(--tlg-font-heading, system-ui); font-size: 20px; font-weight: 800; }
#fl .fl-track-desc { color: var(--fl-muted); font-size: 14.5px; }
#fl .fl-track-modes { margin-top: auto; font-size: 12.5px; font-weight: 700; color: var(--fl-accent-dark); background: color-mix(in srgb, var(--fl-accent) 14%, transparent); padding: 2px 10px; border-radius: 999px; }
#fl .fl-track-card--test { min-height: 96px; }
#fl .fl-start-note { margin-top: 14px; color: var(--fl-bad); font-weight: 700; }

/* ── App shell ───────────────────────────────────────────────────────────── */
#fl .fl-app { display: flex; flex-direction: column; height: calc(100vh - var(--fl-header-h)); height: calc(100dvh - var(--fl-header-h)); min-height: 520px; }
#fl .fl-bar {
  display: flex; align-items: center; gap: 8px; min-height: var(--fl-bar-h); padding: 6px 10px;
  background: var(--fl-panel-solid); border-bottom: 1px solid var(--fl-border); position: relative; z-index: 30;
}
#fl .fl-tabs { display: flex; gap: 4px; overflow-x: auto; flex: 1 1 auto; min-width: 0; scrollbar-width: thin; padding: 2px; }
#fl .fl-tab {
  display: inline-flex; align-items: center; gap: 5px; min-height: 38px; padding: 5px 11px; border-radius: 9px; border: 1.5px solid transparent;
  background: transparent; font-weight: 700; font-size: 13.5px; cursor: pointer; white-space: nowrap; color: var(--fl-muted);
}
#fl .fl-tab .fl-tab-n { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 6px; font-size: 12px; background: var(--fl-chip); color: var(--fl-ink); }
#fl .fl-tab:hover { border-color: var(--fl-border); color: var(--fl-ink); }
#fl .fl-tab[aria-current="page"] { background: color-mix(in srgb, var(--fl-accent) 16%, transparent); color: var(--fl-ink); border-color: var(--fl-accent); }
#fl .fl-tab[aria-current="page"] .fl-tab-n { background: var(--fl-accent); color: var(--fl-accent-ink); }
#fl .fl-allmodes { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; white-space: nowrap; min-height: 40px; cursor: pointer; }
#fl .fl-allmodes input { width: 18px; height: 18px; accent-color: var(--fl-accent); }
#fl .fl-bar-tools { display: flex; gap: 6px; flex: 0 0 auto; }

#fl .fl-stage { position: relative; flex: 1 1 auto; min-height: 0; overflow: hidden; background: #cfd8dc; }
html[data-theme="dark"] #fl .fl-stage { background: #0b1216; }
#fl .fl-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; outline: none; }
#fl .fl-canvas:focus-visible { box-shadow: inset 0 0 0 3px var(--fl-focus); }
#fl .fl-stage.is-2d .fl-canvas { visibility: hidden; }
#fl .fl-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 2; }
#fl .fl-label {
  position: absolute; left: 0; top: 0; padding: 3px 8px; border-radius: 7px; font-size: 12.5px; font-weight: 700; white-space: nowrap;
  background: rgba(255, 255, 255, .92); color: #15191f; border: 1.5px solid rgba(0, 0, 0, .25); will-change: transform;
}
#fl .fl-label--key { background: #15191f; color: #fff; border-color: #fff; }
#fl .fl-label--tension { border-color: var(--fl-tension); border-width: 2px; }
#fl .fl-label--compression { border-color: var(--fl-compression); border-width: 2px; }
#fl .fl-label--shear { border-color: var(--fl-shear); border-width: 2px; }
#fl .fl-label--small { font-size: 11px; padding: 1px 6px; font-weight: 600; }
#fl .fl-overlay { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
#fl .fl-overlay > * { pointer-events: auto; }

#fl .fl-goal {
  position: absolute; left: 12px; top: 12px; z-index: 5; max-width: min(560px, calc(100% - 24px));
  padding: 10px 14px; background: var(--fl-panel); border: 1px solid var(--fl-border); border-radius: 14px; box-shadow: 0 10px 24px -18px rgba(0, 0, 0, .6);
}
#fl .fl-goal-title { font-size: 17px; }
#fl .fl-goal-text { margin: 2px 0 0; font-size: 14.5px; }
#fl .fl-subviews { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
#fl .fl-subviews:empty { display: none; }
#fl .fl-seg { min-height: 34px; padding: 4px 11px; border-radius: 999px; border: 1.5px solid var(--fl-border); background: var(--fl-panel-solid); font-weight: 700; font-size: 13px; cursor: pointer; }
#fl .fl-seg[aria-pressed="true"] { background: var(--fl-ink); color: var(--fl-panel-solid); border-color: var(--fl-ink); }

#fl .fl-readout {
  position: absolute; right: 12px; top: 12px; z-index: 5; min-width: 220px; max-width: 300px; padding: 10px 12px;
  background: var(--fl-panel); border: 1px solid var(--fl-border); border-radius: 12px; font-size: 13.5px;
}
#fl .fl-readout h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--fl-muted); margin-bottom: 4px; }
#fl .fl-readout dl { display: grid; grid-template-columns: auto auto; gap: 3px 12px; margin: 0; }
#fl .fl-readout dt { color: var(--fl-muted); }
#fl .fl-readout dd { margin: 0; font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
#fl .fl-readout .fl-model-note { margin: 6px 0 0; font-size: 11.5px; color: var(--fl-muted); }

#fl .fl-primary { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 6; display: flex; flex-direction: column; align-items: center; gap: 6px; pointer-events: none; }
#fl .fl-primary > * { pointer-events: auto; }
#fl .fl-status { font-weight: 700; font-size: 14px; padding: 3px 10px; border-radius: 999px; background: var(--fl-panel); max-width: 60vw; text-align: center; }
#fl .fl-status:empty { display: none; }
#fl .fl-viewtools { position: absolute; right: 12px; bottom: 14px; z-index: 6; display: flex; gap: 6px; }

#fl .fl-drawer {
  position: absolute; left: 0; top: 0; bottom: 0; width: 320px; max-width: 88vw; z-index: 20; display: flex; flex-direction: column;
  background: var(--fl-panel-solid); border-right: 1px solid var(--fl-border); box-shadow: 12px 0 30px -24px rgba(0, 0, 0, .7);
}
#fl .fl-drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border-bottom: 1px solid var(--fl-border); }
#fl .fl-drawer-head h2 { font-size: 17px; }
#fl .fl-drawer-body { overflow-y: auto; padding: 6px 12px 16px; flex: 1 1 auto; }
#fl .fl-section { border-bottom: 1px solid var(--fl-border); }
#fl .fl-section > summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; min-height: 44px; font-weight: 800; font-size: 14.5px; }
#fl .fl-section > summary::-webkit-details-marker { display: none; }
#fl .fl-section > summary::after { content: "+"; font-size: 20px; font-weight: 700; color: var(--fl-muted); }
#fl .fl-section[open] > summary::after { content: "–"; }
#fl .fl-section-body { padding: 0 0 12px; display: grid; gap: 12px; }
#fl .fl-ctl { display: grid; gap: 4px; }
#fl .fl-ctl-row { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; font-size: 13.5px; font-weight: 700; }
#fl .fl-ctl-val { font-variant-numeric: tabular-nums; color: var(--fl-accent-dark); }
#fl .fl-ctl input[type="range"] { width: 100%; height: 30px; accent-color: var(--fl-accent); cursor: pointer; }
#fl .fl-ctl select { min-height: 38px; border-radius: 8px; border: 1.5px solid var(--fl-border); background: var(--fl-panel-solid); color: var(--fl-ink); font: inherit; padding: 4px 8px; }
#fl .fl-ctl-hint { font-size: 12px; color: var(--fl-muted); margin: 0; }
#fl .fl-check { display: flex; align-items: center; gap: 8px; min-height: 38px; font-size: 14px; font-weight: 600; cursor: pointer; }
#fl .fl-check input { width: 20px; height: 20px; accent-color: var(--fl-accent); flex: 0 0 auto; }
#fl .fl-check.is-off { opacity: .45; cursor: not-allowed; }

#fl .fl-pop {
  position: absolute; top: 8px; right: 12px; z-index: 25; width: 290px; max-height: calc(100% - 16px); overflow-y: auto; padding: 12px 14px;
  background: var(--fl-panel-solid); border: 1px solid var(--fl-border); border-radius: 14px; box-shadow: 0 18px 36px -20px rgba(0, 0, 0, .7);
}
#fl .fl-pop h2 { font-size: 16px; }
#fl .fl-pop-sub { margin: 2px 0 8px; font-size: 12.5px; color: var(--fl-muted); }
#fl .fl-fieldset { border: 1px solid var(--fl-border); border-radius: 10px; padding: 6px 10px 8px; margin: 6px 0 8px; display: grid; gap: 2px; }
#fl .fl-fieldset legend { font-weight: 700; font-size: 13px; padding: 0 4px; }
#fl .fl-fieldset label { display: flex; align-items: center; gap: 8px; min-height: 34px; cursor: pointer; }
#fl .fl-fieldset input { width: 18px; height: 18px; accent-color: var(--fl-accent); }
#fl .fl-swatch { display: inline-block; width: 14px; height: 14px; border-radius: 3px; flex: 0 0 auto; }

#fl .fl-explain {
  position: absolute; left: 12px; bottom: 12px; z-index: 22; width: min(460px, calc(100% - 24px)); max-height: calc(100% - 24px); overflow-y: auto;
  padding: 12px 14px; background: var(--fl-panel-solid); border: 2px solid var(--fl-accent); border-radius: 14px; box-shadow: 0 18px 36px -20px rgba(0, 0, 0, .7);
}
#fl .fl-explain-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
#fl .fl-explain-head h2 { font-size: 16px; }
#fl .fl-explain-body p { margin: 0 0 8px; font-size: 14.5px; }
#fl .fl-explain-body .fl-formula { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; background: var(--fl-chip); padding: 8px 10px; border-radius: 8px; white-space: pre-wrap; }
#fl .fl-explain-body .fl-example { font-size: 13.5px; border-left: 3px solid var(--fl-accent); padding-left: 8px; }

#fl .fl-fps { position: absolute; right: 12px; bottom: 58px; z-index: 6; font: 700 12px/1 ui-monospace, Menlo, monospace; background: rgba(0, 0, 0, .7); color: #fff; padding: 4px 7px; border-radius: 6px; }
#fl .fl-toast { position: absolute; left: 50%; top: 14px; transform: translateX(-50%); z-index: 40; background: #15191f; color: #fff; padding: 8px 14px; border-radius: 10px; font-weight: 700; font-size: 14px; max-width: 80%; text-align: center; box-shadow: 0 10px 24px -12px rgba(0, 0, 0, .8); }

#fl .fl-tip {
  position: fixed; z-index: 2147483000; max-width: 260px; padding: 6px 9px; border-radius: 8px; background: #15191f; color: #fff;
  font-size: 13px; line-height: 1.35; pointer-events: none; box-shadow: 0 8px 18px -10px rgba(0, 0, 0, .8);
}

/* ── Shared overlay panels used by modes ─────────────────────────────────── */
#fl .fl-panel {
  background: var(--fl-panel); border: 1px solid var(--fl-border); border-radius: 12px; padding: 10px 12px; box-shadow: 0 10px 24px -18px rgba(0, 0, 0, .6);
}
#fl .fl-panel h3 { font-size: 14.5px; margin-bottom: 4px; }
#fl .fl-gauge { position: absolute; left: 12px; bottom: 16px; width: 64px; z-index: 5; text-align: center; }
#fl .fl-gauge-tube { position: relative; height: 170px; margin: 4px auto; width: 26px; border-radius: 13px; border: 2px solid var(--fl-ink); background: var(--fl-panel-solid); overflow: hidden; }
#fl .fl-gauge-fill { position: absolute; left: 0; right: 0; bottom: 0; height: 0; background: repeating-linear-gradient(45deg, var(--fl-compression) 0 6px, color-mix(in srgb, var(--fl-compression) 70%, #fff) 6px 12px); }
#fl .fl-gauge-line { position: absolute; left: -6px; right: -6px; height: 0; border-top: 3px dashed var(--fl-ink); top: 10%; }
#fl .fl-gauge-cap { font-size: 12px; font-weight: 800; }
#fl .fl-gauge-val { font-size: 13px; font-weight: 800; font-variant-numeric: tabular-nums; }

#fl .fl-timeline { position: absolute; left: 50%; transform: translateX(-50%); bottom: 80px; z-index: 5; width: min(520px, calc(100% - 300px)); padding: 8px 10px; }
#fl .fl-timeline input[type="range"] { width: 100%; accent-color: var(--fl-accent); height: 28px; }
#fl .fl-timeline-stages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
#fl .fl-timeline-stages button { min-height: 34px; font-size: 12.5px; padding: 2px 4px; }
#fl .fl-timeline-desc { margin: 6px 0 0; font-size: 13.5px; text-align: center; min-height: 2.6em; }

#fl .fl-choice-row { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
#fl .fl-feedback { font-weight: 700; margin: 6px 0 0; font-size: 14px; }
#fl .fl-feedback.is-good { color: var(--fl-good); }
#fl .fl-feedback.is-bad { color: var(--fl-bad); }

#fl .fl-card-panel { position: absolute; z-index: 5; }
#fl .fl-mini-legend { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: 12.5px; font-weight: 700; }
#fl .fl-mini-legend span { display: inline-flex; align-items: center; gap: 5px; }
#fl .fl-mini-legend i { display: inline-block; width: 22px; height: 0; border-top: 3px solid currentColor; }
#fl .fl-mini-legend i.dash { border-top-style: dashed; }

/* 2D mode canvases */
#fl .fl-2d { position: absolute; inset: 0; display: flex; gap: 10px; padding: 12px; padding-top: 12px; }
#fl canvas.fl-cv { display: block; width: 100%; height: 100%; touch-action: none; }
#fl canvas.fl-cv:focus-visible { outline: 3px solid var(--fl-focus); outline-offset: -3px; }

/* Mode 5 */
#fl .fl-tri { position: absolute; inset: 0; display: grid; grid-template-columns: minmax(0, 43fr) minmax(0, 57fr); gap: 10px; padding: 12px; }
#fl .fl-tri-map { position: relative; min-height: 0; margin-top: calc(var(--fl-goal-h, 130px) + 10px); }
#fl .fl-test-task .fl-tri-map { margin-top: 0; }
#fl .fl-tri-side { min-height: 0; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; padding-bottom: 70px; }
#fl .fl-steps { display: flex; gap: 4px; flex-wrap: wrap; }
#fl .fl-step { font-size: 12.5px; font-weight: 700; padding: 3px 9px; border-radius: 999px; border: 1.5px solid var(--fl-border); background: var(--fl-panel-solid); cursor: pointer; min-height: 30px; }
#fl .fl-step[aria-current="step"] { background: var(--fl-accent); color: var(--fl-accent-ink); border-color: var(--fl-accent); }
#fl .fl-step.is-done::before { content: "✓ "; }
#fl .fl-seis { display: grid; grid-template-columns: 1fr; gap: 2px; }
#fl .fl-seis-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; }
#fl .fl-seis-head strong { font-size: 14px; }
#fl .fl-seis canvas { height: 92px; border-radius: 8px; border: 1.5px solid var(--fl-border); background: #fbf8ef; cursor: crosshair; }
#fl .fl-inline-input { width: 88px; min-height: 34px; border-radius: 8px; border: 1.5px solid var(--fl-border); padding: 3px 8px; font: inherit; font-weight: 700; background: var(--fl-panel-solid); color: var(--fl-ink); }
#fl .fl-inline-input.is-bad { border-color: var(--fl-bad); }
#fl .fl-mark-tag { font-size: 12px; font-weight: 700; padding: 1px 7px; border-radius: 999px; background: var(--fl-chip); }
#fl .fl-graph canvas { height: 300px; border-radius: 8px; border: 1.5px solid var(--fl-border); background: #fff; }
#fl .fl-help { font-size: 13px; color: var(--fl-muted); margin: 0; }
#fl .fl-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
#fl .fl-table th, #fl .fl-table td { border-bottom: 1px solid var(--fl-border); padding: 4px 6px; text-align: left; }
#fl .fl-table td.num, #fl .fl-table th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Mode 8 shop */
#fl .fl-shop { display: grid; gap: 6px; }
#fl .fl-shop label { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 8px; padding: 6px 8px; border: 1.5px solid var(--fl-border); border-radius: 10px; cursor: pointer; font-size: 13.5px; background: var(--fl-panel-solid); }
#fl .fl-shop label.is-disabled { opacity: .5; cursor: not-allowed; }
#fl .fl-shop input { width: 18px; height: 18px; accent-color: var(--fl-accent); }
#fl .fl-shop .fl-cost { font-weight: 800; font-variant-numeric: tabular-nums; }
#fl .fl-kind { font-size: 11px; font-weight: 700; color: var(--fl-muted); text-transform: uppercase; letter-spacing: .05em; display: block; }
#fl .fl-budget { font-weight: 800; font-size: 14px; }
#fl .fl-model-tag { display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; background: #15191f; color: #fff; padding: 2px 7px; border-radius: 5px; }
#fl .fl-bar-track { height: 12px; border-radius: 6px; background: var(--fl-chip); overflow: hidden; }
#fl .fl-bar-fill { height: 100%; background: var(--fl-accent); }

/* ── Test mode ───────────────────────────────────────────────────────────── */
#fl .fl-test { min-height: calc(100vh - var(--fl-header-h)); padding: 18px 16px 40px; display: flex; justify-content: center; }
#fl .fl-test-inner { width: min(100%, 980px); }
#fl .fl-test-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
#fl .fl-test-head h2 { font-size: 20px; margin-right: auto; }
#fl .fl-progress { height: 8px; border-radius: 4px; background: var(--fl-chip); overflow: hidden; margin-bottom: 12px; }
#fl .fl-progress span { display: block; height: 100%; background: var(--fl-accent); }
#fl .fl-q { background: var(--fl-panel-solid); border: 1px solid var(--fl-border); border-radius: 16px; padding: 16px 18px; }
#fl .fl-q h3 { font-size: 14px; color: var(--fl-muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 6px; }
#fl .fl-q-prompt { font-size: 17px; margin: 0 0 12px; }
#fl .fl-q-media { display: flex; justify-content: center; margin: 4px 0 12px; }
#fl .fl-q-media canvas { width: min(100%, 560px); height: auto; aspect-ratio: 560 / 280; border-radius: 12px; border: 1.5px solid var(--fl-border); background: #fff; }
#fl .fl-choices { display: grid; gap: 8px; }
#fl .fl-choice { text-align: left; justify-content: flex-start; white-space: normal; min-height: 46px; padding: 9px 14px; font-weight: 600; }
#fl .fl-choice[aria-pressed="true"] { background: color-mix(in srgb, var(--fl-accent) 18%, var(--fl-panel-solid)); color: var(--fl-ink); border-color: var(--fl-accent); }
#fl .fl-order-row { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
#fl .fl-order-row select { min-height: 40px; border-radius: 8px; border: 1.5px solid var(--fl-border); font: inherit; padding: 4px 8px; background: var(--fl-panel-solid); color: var(--fl-ink); }
#fl .fl-test-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; gap: 10px; }
#fl .fl-frq { width: 100%; min-height: 180px; border-radius: 10px; border: 1.5px solid var(--fl-border); padding: 10px; font: inherit; background: var(--fl-panel-solid); color: var(--fl-ink); }
#fl .fl-test-task { position: relative; height: 560px; border: 1.5px solid var(--fl-border); border-radius: 12px; overflow: hidden; background: var(--fl-bg); }
#fl .fl-test-task .fl-tri { padding-top: 12px; }
#fl .fl-results-score { font-family: var(--tlg-font-heading, system-ui); font-size: 44px; font-weight: 800; }
#fl .fl-review { display: grid; gap: 10px; margin-top: 14px; }
#fl .fl-review-item { border: 1.5px solid var(--fl-border); border-radius: 12px; padding: 10px 12px; background: var(--fl-panel-solid); }
#fl .fl-review-item.is-right { border-left: 6px solid var(--fl-good); }
#fl .fl-review-item.is-wrong { border-left: 6px solid var(--fl-bad); }
#fl .fl-review-item.is-open { border-left: 6px solid var(--fl-muted); }
#fl .fl-review-item h4 { margin: 0 0 4px; font-size: 14.5px; }
#fl .fl-review-item p { margin: 2px 0; font-size: 14px; }
#fl .fl-verdict { font-weight: 800; }
#fl .fl-verdict.is-right { color: var(--fl-good); }
#fl .fl-verdict.is-wrong { color: var(--fl-bad); }
#fl .fl-turnin { margin-top: 14px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

@media (max-width: 1100px) {
  #fl .fl-bar { flex-wrap: wrap; }
  #fl .fl-tabs { order: 3; flex-basis: 100%; }
  #fl .fl-bar-tools { margin-left: auto; }
  #fl .fl-app { --fl-bar-h: 96px; }
}
@media (max-width: 720px) {
  #fl .fl-track-grid { grid-template-columns: 1fr; }
  #fl .fl-tri { grid-template-columns: 1fr; overflow-y: auto; }
  #fl .fl-readout { display: none; }
  #fl .fl-bar-tools .fl-btn--tool:not(.fl-btn--icon) { padding: 6px 9px; font-size: 13px; }
  #fl .fl-goal { max-width: calc(100% - 24px); }
  #fl .fl-viewtools { bottom: 80px; }
}
@media (prefers-reduced-motion: reduce) {
  #fl * { scroll-behavior: auto !important; }
}

/* When the drawer is open, keep the goal card, gauges and Explain panel beside it instead of under it. */
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-goal,
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-explain,
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-gauge { left: 332px; }
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-goal { max-width: min(460px, calc(100% - 344px)); }
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-leftpanel { left: 332px !important; }
#fl .fl-stage:has(.fl-drawer:not([hidden])) .fl-tri { padding-left: 332px; }