#js-tool-container-floor-heating-cable-layout-calculator .fhc-app { display: flex; flex-direction: column; gap: 22px; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; color: var(--text-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-fieldset { position: relative; margin: 0; padding: 18px; border: 1px solid var(--border-color); border-radius: var(--radius-md); background: linear-gradient(180deg, var(--bg-secondary), var(--bg-tertiary)); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-fieldset::before { position: absolute; top: 0; left: 18px; right: 18px; height: 3px; background: linear-gradient(90deg, transparent, var(--accent-primary), transparent); content: ""; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-legend { padding: 0 7px; color: var(--text-secondary); font-weight: 650; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
#js-tool-container-floor-heating-cable-layout-calculator .tbcalc-hint { color: var(--text-muted); font-size: 0.82rem; line-height: 1.4; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-outcome { display: flex; flex-direction: column; gap: 18px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-layout-board { min-height: 292px; display: grid; grid-template-columns: minmax(245px, 0.72fr) minmax(360px, 1.28fr); overflow: hidden; border: 1px solid var(--border-color); border-radius: var(--radius-lg); background: var(--bg-secondary); box-shadow: var(--shadow-sm); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: center; min-width: 0; padding: 24px; background: linear-gradient(160deg, var(--bg-secondary), var(--accent-light)); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer::after { position: absolute; right: -22px; top: calc(50% - 22px); width: 44px; height: 44px; border: 1px solid var(--border-color); border-left: 0; border-bottom: 0; background: var(--accent-light); content: ""; transform: rotate(45deg); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-kicker { align-self: flex-start; margin-bottom: 15px; padding-bottom: 5px; border-bottom: 3px solid var(--accent-primary); color: var(--text-secondary); font-size: 0.72rem; font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer-label { color: var(--text-secondary); font-size: 0.86rem; line-height: 1.35; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer-line { display: flex; align-items: baseline; gap: 9px; margin-top: 6px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-result-value { font-size: clamp(2.75rem, 7vw, 4.75rem); font-weight: 820; line-height: 0.92; letter-spacing: -0.055em; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-unit { color: var(--text-secondary); font-size: 1.25rem; font-weight: 700; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-hero-note { margin: 11px 0 0; color: var(--text-secondary); font-size: 0.84rem; line-height: 1.45; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer-foot { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; padding-top: 11px; border-top: 1px solid var(--border-color); color: var(--text-secondary); font-size: 0.74rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer-foot strong { color: var(--text-primary); font-size: 0.86rem; text-align: right; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-floor-blueprint { position: relative; display: flex; flex-direction: column; justify-content: center; min-width: 0; padding: 18px 20px 14px 34px; background: var(--bg-tertiary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-plan-top { display: flex; justify-content: space-between; gap: 12px; color: var(--text-muted); font-size: 0.7rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-plan-top strong { color: var(--text-secondary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-floor-blueprint svg { display: block; width: 100%; max-height: 205px; margin-top: 4px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-room-outline { fill: var(--bg-secondary); stroke: var(--border-color); stroke-width: 2; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-grid-lines { fill: none; stroke: var(--border-color); stroke-width: 1; stroke-dasharray: 4 7; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-route-shadow { fill: none; stroke: var(--accent-light); stroke-width: 18; stroke-linecap: round; stroke-linejoin: round; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-route-path { fill: none; stroke: var(--accent-primary); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-route-node { fill: var(--bg-secondary); stroke: var(--accent-primary); stroke-width: 5; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-dimension-rail { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px; margin: -2px 18px 2px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-dimension-rail i { height: 1px; background: var(--accent-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-dimension-rail b { padding: 3px 8px; border-radius: 999px; background: var(--accent-light); color: var(--accent-primary); font-size: 0.7rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-plan-caption { display: flex; justify-content: space-between; gap: 12px; margin-top: 4px; color: var(--text-secondary); font-size: 0.7rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-plan-caption strong { color: var(--text-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status { min-height: 48px; box-sizing: border-box; padding: 12px 15px 12px 46px; border: 1px solid var(--border-color); border-radius: var(--radius-sm); background: linear-gradient(90deg, var(--success-light), transparent); color: var(--text-secondary); line-height: 1.4; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status::before { float: left; margin-left: -29px; color: var(--success); content: "✓"; font-weight: 800; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status.fhc-warn { background: linear-gradient(90deg, var(--warning-light), transparent); color: var(--text-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status.fhc-warn::before { color: var(--warning); content: "!"; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status.fhc-danger { background: linear-gradient(90deg, var(--danger-light), transparent); color: var(--text-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-status.fhc-danger::before { color: var(--danger); content: "×"; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-deck { display: grid; grid-template-columns: minmax(150px, 0.35fr) minmax(280px, 1fr) minmax(150px, 0.35fr); align-items: center; gap: 18px; padding: 15px 17px; border: 1px solid var(--border-color); border-radius: var(--radius-md); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-readout, #js-tool-container-floor-heating-cable-layout-calculator .fhc-target-verdict { display: flex; flex-direction: column; gap: 4px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-readout span, #js-tool-container-floor-heating-cable-layout-calculator .fhc-target-verdict strong { color: var(--text-secondary); font-size: 0.72rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-readout strong { font-size: 1rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-verdict { align-items: flex-end; text-align: right; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-verdict span { color: var(--success); font-size: 0.78rem; font-weight: 720; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-axis { min-width: 0; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-band { position: relative; height: 12px; border-radius: 999px; background: linear-gradient(90deg, var(--bg-tertiary), var(--success-light), var(--bg-tertiary)); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-band::before { position: absolute; left: 43%; right: 43%; top: -3px; bottom: -3px; border: 1px solid var(--success); border-radius: 999px; content: ""; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-band span { position: absolute; top: 50%; left: 50%; width: 15px; height: 15px; border: 4px solid var(--accent-primary); border-radius: 50%; background: var(--bg-secondary); transform: translate(-50%, -50%); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-band i { position: absolute; top: -5px; bottom: -5px; left: 50%; width: 2px; background: var(--text-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-labels { display: grid; grid-template-columns: 1fr 1fr 1fr; margin-top: 8px; color: var(--text-muted); font-size: 0.65rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-labels b { color: var(--text-secondary); text-align: center; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-labels span:last-child { text-align: right; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-balance { padding: 16px; border: 1px solid var(--border-color); border-radius: var(--radius-md); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-head { display: flex; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-head span { color: var(--text-secondary); font-size: 0.82rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-head strong { font-size: 0.86rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-row { display: grid; grid-template-columns: 70px 1fr 85px; align-items: center; gap: 12px; margin-top: 10px; color: var(--text-secondary); font-size: 0.75rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-row i { height: 8px; overflow: hidden; border-radius: 999px; background: var(--bg-tertiary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-row i b { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--accent-primary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-required i b { background: var(--success); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-row strong { color: var(--text-primary); text-align: right; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-install-ledger { margin: 14px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; overflow: hidden; border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--border-color); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-install-ledger div { display: flex; justify-content: space-between; gap: 16px; padding: 13px 15px; background: var(--bg-secondary); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-install-ledger dt { color: var(--text-secondary); font-size: 0.82rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-install-ledger dd { margin: 0; text-align: right; font-size: 0.88rem; font-weight: 680; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-handoff { display: flex; margin-top: 14px; flex-direction: column; gap: 12px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-handoff p { margin: 0; color: var(--text-secondary); line-height: 1.5; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-rule-line { display: flex; justify-content: space-between; gap: 18px; padding: 12px 15px; border-left: 3px solid var(--accent-primary); background: var(--accent-light); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-rule-line span { color: var(--text-secondary); font-size: 0.82rem; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-rule-line strong { text-align: right; font-size: 0.87rem; }
@media (max-width: 760px) {
#js-tool-container-floor-heating-cable-layout-calculator .fhc-layout-board { grid-template-columns: 1fr; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer { min-height: 225px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer::after { right: calc(50% - 22px); top: auto; bottom: -22px; transform: rotate(135deg); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-floor-blueprint { min-height: 290px; padding: 30px 18px 16px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-deck { grid-template-columns: 1fr auto; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-target-axis { grid-column: 1 / -1; grid-row: 2; }
}
@media (max-width: 600px) {
#js-tool-container-floor-heating-cable-layout-calculator .fhc-grid { grid-template-columns: 1fr; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-result-value { font-size: clamp(2.65rem, 17vw, 4rem); }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-answer { padding: 20px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-plan-top { flex-direction: column; gap: 3px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-head { flex-direction: column; gap: 5px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-coil-row { grid-template-columns: 64px 1fr 72px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-install-ledger { grid-template-columns: 1fr; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-rule-line { flex-direction: column; gap: 5px; }
#js-tool-container-floor-heating-cable-layout-calculator .fhc-rule-line strong { text-align: left; }
}