/* Long-tail tools share the existing CalcPane palette and typography. */
.lt-shell{max-width:1120px;margin:auto}.lt-head{max-width:850px;margin:40px 0 28px}.lt-head h1{font-size:clamp(1.9rem,4vw,3rem);line-height:1.15;letter-spacing:-.035em}.lt-badge{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--br,#4f46e5)}.lt-calc{display:grid;grid-template-columns:1fr 1fr;gap:30px;border:1px solid var(--line,#d6dae4);border-radius:22px;padding:28px;margin:24px 0;background:var(--panel,var(--bg,#fff))}.lt-fields{display:grid;gap:16px;align-content:start}.lt-field label{display:block;font-size:.9rem;font-weight:650;margin-bottom:5px}.lt-input{display:flex;align-items:center;border:1px solid var(--line,#c8cedb);border-radius:10px;overflow:hidden}.lt-input input{width:100%;min-width:0;border:0;background:transparent;color:inherit;padding:12px;font:inherit}.lt-input span{padding:0 10px;color:var(--mu,#626b7e);font-size:.8rem;white-space:nowrap}.lt-input:focus-within{outline:3px solid var(--br,#4f46e5);outline-offset:2px}.lt-field small{display:block;color:var(--mu,#626b7e);font-size:.78rem;margin-top:4px}.lt-results{border-radius:16px;padding:22px;background:var(--bg2,#f5f6ff);align-self:start}.lt-results .row{gap:18px}.lt-results dd{overflow-wrap:anywhere;text-align:right}.lt-results .hero-num dd{font-size:clamp(1.5rem,3vw,2.2rem)}.lt-actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.lt-actions button{white-space:normal}.lt-error{color:#b91c1c;font-weight:650;min-height:1.4em}.lt-meta{font-size:.85rem;color:var(--mu,#626b7e)}.lt-prose{max-width:820px}.lt-prose section{margin:36px 0}.lt-prose h2{font-size:1.5rem;letter-spacing:-.02em}.lt-prose p,.lt-prose li{line-height:1.8}.lt-prose .formula{white-space:normal;overflow-wrap:anywhere}.lt-table{overflow-x:auto;margin:18px 0}table{border-collapse:collapse;width:100%;font-size:.9rem}caption{text-align:left;font-weight:650;margin-bottom:10px}th,td{border:1px solid var(--line,#d6dae4);padding:10px 12px;text-align:left;vertical-align:top}thead{background:var(--bg2,#f3f5fc)}.lt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 0}.lt-grid .card{padding:20px}.lt-grid h3{font-size:1.05rem;line-height:1.4}.lt-grid p{font-size:.9rem;color:var(--mu,#626b7e)}.lt-grid [hidden]{display:none}.lt-prose details{border-bottom:1px solid var(--line,#d6dae4);padding:16px 0}.lt-prose summary{font-weight:650;cursor:pointer}.lt-prose textarea,.lt-share-link{width:100%;padding:12px;border:1px solid var(--line,#d6dae4);border-radius:10px;background:var(--bg,#fff);color:inherit;font:inherit;font-size:.85rem}.lt-cta{padding:24px;border-radius:16px;background:var(--bg2,#f5f6ff);border:1px solid var(--line,#d6dae4)}.lt-step{color:var(--mu,#626b7e)}.lt-nav{display:flex;gap:14px;flex-wrap:wrap}.embed .lt-calc{margin:12px 0;padding:18px;gap:20px}.embed main{max-width:960px;margin:auto;padding:16px}.embed .lt-head{margin:8px 0}.embed .lt-head h1{font-size:1.4rem}.embed .lt-actions{margin-bottom:0}a:focus-visible,button:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid var(--br,#4f46e5);outline-offset:3px}@media(max-width:700px){.lt-calc{grid-template-columns:1fr;padding:18px;gap:16px}.lt-results{padding:16px}.lt-head{margin-top:28px}.lt-table th,.lt-table td{padding:8px}.lt-actions .btn{font-size:.85rem}.lt-results .hero-num dd{font-size:1.6rem}}@media(prefers-color-scheme:dark){.lt-calc{background:var(--bg,#101524)}.lt-results,.lt-cta,thead{background:var(--bg2,#1d2435)}.lt-error{color:#fca5a5}}