.scientific-main{max-width:1140px;margin:28px auto 60px;padding:0 24px}.scientific-heading{display:flex;align-items:center;gap:20px}.calculator-art{width:65px;height:82px;flex:none}.scientific-eyebrow{color:#c7baff;font-size:12px;font-weight:800;letter-spacing:2px;margin:0 0 8px}.scientific-heading h1{font-size:clamp(28px,4vw,44px);line-height:1.12;margin:0}.scientific-intro{color:#d3d9e8;max-width:760px;font-size:17px;line-height:1.65;margin:20px 0 28px}.scientific-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(260px,1fr);gap:24px;align-items:start}.calculator-shell{min-width:0;padding:22px;background:linear-gradient(150deg,#34344d,#202333 65%,#29223b);border:1px solid #79708f;border-radius:22px;box-shadow:inset 0 1px #ffffff33,0 10px 28px #0007}.calc-top{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:17px}.calc-brand{font-size:13px;font-weight:800;color:#eee7ff}.calc-brand b{color:#ffd58a;margin-left:7px;letter-spacing:2px}.calc-angle{display:flex;border:0;gap:8px;padding:0;margin:0}.calc-angle legend{font-size:11px;color:#d5d4e2;padding:0 0 5px}.calc-angle label{position:relative;display:flex;align-items:center;gap:5px;min-height:44px;padding:6px 8px;background:#171c2b;border:1px solid #727890;border-radius:9px;color:#fff;font-weight:800;cursor:pointer}.calc-angle label:has(input:checked){background:#554079;border-color:#c7b2fd}.calc-angle input{accent-color:#d4b7ff;width:16px;height:16px}.calc-display{background:linear-gradient(160deg,#f2f8df,#dce8c8);color:#152420;border:2px solid #9eb390;border-radius:12px;padding:14px;box-shadow:inset 0 3px 8px #24382c24}.calc-display label,.calc-result-label{font-size:12px;font-weight:700;color:#385046}.calc-display input{width:100%;min-width:0;background:transparent;color:#152420;border:0;border-bottom:1px solid #859680;border-radius:0;font-size:22px;line-height:1.6;min-height:48px;padding:6px 0;caret-color:#152420;font-family:ui-monospace,Consolas,monospace}.calc-display input::placeholder{color:#596b60}.calc-result-label{display:flex;justify-content:space-between;gap:12px;margin-top:12px}.calc-display output{display:block;overflow-x:auto;white-space:nowrap;text-align:right;font-size:clamp(27px,4vw,38px);line-height:1.5;min-height:58px;font-weight:700;font-family:ui-monospace,Consolas,monospace}.calc-display output.is-error{font-size:25px;color:#842515}#calc-previous{margin:0 0 8px;min-height:18px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:#385046}#calc-status{color:#ffe3a2;font-size:14px;line-height:1.4;min-height:20px;margin:10px 0}.calc-memory-keys,.calc-science,.calc-basic{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.calc-memory-keys{margin:0 0 16px}.calc-keypads{display:grid;grid-template-columns:1fr 1fr;gap:16px}.calc-key{min-width:0;min-height:48px;padding:10px 4px;border:1px solid #85829c;border-radius:10px;background:linear-gradient(#514965,#383348);box-shadow:inset 0 1px #fff3,0 3px 0 #0e1221;color:#f8f3ff;font-size:17px;font-weight:700;cursor:pointer;touch-action:manipulation}.key-number{background:linear-gradient(#e8eaf2,#bac4d8);color:#142338;border-color:#e3e8f1;font-size:21px}.key-operator{background:linear-gradient(#825d35,#5d4028);border-color:#c89759;color:#fff0d1}.key-clear{background:linear-gradient(#694653,#492f3f);border-color:#bb829a}.key-memory{background:linear-gradient(#334459,#263247);color:#c4e5ff;font-size:15px}.key-equals{grid-column:1/-1;background:linear-gradient(#c1a6f5,#9776d0);color:#1f1534;border-color:#dbceff;font-size:24px}.calc-key:active{transform:translateY(2px);box-shadow:inset 0 1px #fff2,0 1px 0 #0e1221}.calc-copy,.calc-history button{min-height:44px;background:#35334d;color:#f3eaff;border:1px solid #8e7fb0;border-radius:9px;padding:10px 14px;font-weight:700;cursor:pointer}.calc-copy{width:100%;margin-top:16px}.calc-sidebar{min-width:0}.calc-history,.calc-help{border:1px solid #605976;border-radius:15px;background:linear-gradient(135deg,#252b40,#262039);padding:20px}.calc-history>div{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.calc-history h2{font-size:21px;margin:0}.calc-history>div button{font-size:12px}.calc-history ol{padding:0;list-style:none;max-height:330px;overflow-y:auto}.calc-history li{margin:9px 0}.calc-history li button{width:100%;text-align:left;overflow-wrap:anywhere;font-family:ui-monospace,Consolas,monospace;font-weight:500;line-height:1.6}.calc-history li strong{display:block;color:#ffe0a2;font-size:18px}.calc-private,.calc-help p{color:#d3d9e8;font-size:14px;line-height:1.65}.calc-private{margin-bottom:0}.calc-help{margin-top:20px}.calc-help summary{min-height:44px;font-weight:800;font-size:18px;cursor:pointer}.scientific-main :focus-visible{outline:3px solid #ffd989;outline-offset:3px}.scientific-discovery .calculator-art{width:92px;height:115px}.scientific-discovery{margin-top:18px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:1050px){.calc-keypads{grid-template-columns:1fr}.scientific-layout{grid-template-columns:minmax(0,1.3fr) minmax(240px,1fr)}}@media(max-width:700px){.scientific-main{padding:0 16px;margin-top:18px}.scientific-layout{grid-template-columns:minmax(0,1fr)}.calculator-shell{padding:14px;border-radius:17px}.scientific-heading{gap:12px}.calculator-art{width:48px;height:60px}.scientific-eyebrow{font-size:10px;letter-spacing:1px}.calc-keypads{gap:16px}.calc-key{min-height:50px}.calc-memory-keys,.calc-science,.calc-basic{gap:7px}.calc-display{padding:12px}.calc-top{margin-bottom:12px}.calc-brand{font-size:12px}.calc-history{padding:16px}.scientific-discovery .calculator-art{display:none}}@media(prefers-reduced-motion:reduce){.calc-key:active{transform:none}}

/* Compact tool introduction; the functional calculator is the primary content. */
.scientific-main{margin-top:18px}.scientific-heading{gap:12px;min-width:0}.scientific-heading>div{min-width:0}.scientific-heading>.calculator-art{width:32px;height:40px;max-width:32px;max-height:40px;flex:0 0 32px}.scientific-heading h1{font-size:clamp(27px,3.2vw,36px);line-height:1.18;letter-spacing:-.7px;margin:0;overflow-wrap:break-word}.scientific-intro{font-size:16px;line-height:1.5;margin:10px 0 18px;max-width:850px}@media(max-width:700px){.scientific-heading{gap:10px}.scientific-heading h1{font-size:26px}.scientific-intro{font-size:15px;margin:8px 0 14px}}