:root{--bg:#090e1a;--surface:#111827;--surface2:#172033;--line:#263247;--text:#f3f5f8;--muted:#8f9bb0;--accent:#ff6b35;--accent2:#ff9b50;--green:#42d39b;--shadow:0 24px 70px rgba(0,0,0,.3)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 80% 0,#18213a 0,transparent 30%),var(--bg);color:var(--text);font:15px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:240px;padding:28px 18px;border-right:1px solid var(--line);background:rgba(9,14,26,.92);backdrop-filter:blur(18px);display:flex;flex-direction:column;z-index:5}.brand{display:flex;align-items:center;gap:11px;padding:0 10px 34px;color:white;text-decoration:none;font-size:20px;letter-spacing:.08em}.brand b{color:var(--accent)}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#e43b24);font-weight:900;box-shadow:0 7px 25px rgba(255,107,53,.35)}nav{display:grid;gap:6px}.nav-item{border:0;background:transparent;color:var(--muted);padding:12px 14px;border-radius:11px;text-align:left;font:inherit;cursor:pointer;transition:.2s}.nav-item span{display:inline-block;width:28px}.nav-item:hover,.nav-item.active{background:var(--surface2);color:#fff}.nav-item.active{box-shadow:inset 3px 0 var(--accent)}.sidebar-footer{margin-top:auto;color:var(--muted);font-size:12px;padding:12px}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:8px;box-shadow:0 0 12px var(--green)}main{margin-left:240px;padding:36px 4vw 70px;max-width:1600px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}h1,h2,h3,p{margin-top:0}h1{font-size:30px;margin-bottom:0}h2{font-size:clamp(34px,4.4vw,66px);line-height:1.03;letter-spacing:-.045em;margin:18px 0}h2 em{color:var(--accent);font-style:normal}h3{font-size:20px;margin-bottom:0}.eyebrow{color:var(--accent2);font-size:11px;font-weight:800;letter-spacing:.16em;margin-bottom:5px}.primary,.secondary,.ghost,.text-button,.icon-button{border:0;font:inherit;cursor:pointer}.primary{background:linear-gradient(135deg,var(--accent),#f04b2b);color:#fff;font-weight:750;border-radius:10px;padding:11px 18px;box-shadow:0 9px 30px rgba(255,107,53,.22)}.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}.secondary{background:#fff;color:#101625;padding:11px 16px;border-radius:10px;font-weight:700}.ghost{background:transparent;color:var(--muted);padding:11px 18px}.text-button{background:none;color:var(--accent2)}.icon-button{background:var(--surface2);color:#fff;width:34px;height:34px;border-radius:9px;font-size:22px}.full{width:100%;margin-top:8px}.view{display:none}.view.active{display:block;animation:fade .25s ease}@keyframes fade{from{opacity:0;transform:translateY(5px)}}.hero{min-height:330px;padding:54px;display:flex;align-items:center;justify-content:space-between;overflow:hidden;border:1px solid var(--line);border-radius:23px;background:linear-gradient(115deg,rgba(23,32,51,.96),rgba(13,20,36,.78));box-shadow:var(--shadow)}.hero p{max-width:560px;color:var(--muted);font-size:17px}.pill{display:inline-block;border:1px solid rgba(255,107,53,.4);background:rgba(255,107,53,.08);color:var(--accent2);border-radius:99px;padding:6px 10px;font-size:10px;font-weight:800;letter-spacing:.14em}.orb{width:260px;height:260px;position:relative;flex:none}.orb:before,.orb:after,.orb span{content:"";position:absolute;border-radius:50%;inset:25px;background:radial-gradient(circle at 35% 30%,#ffbd7a,var(--accent) 34%,#691e21 72%);box-shadow:0 0 70px rgba(255,107,53,.24);animation:float 6s ease-in-out infinite}.orb:after{inset:7px;border:1px solid rgba(255,155,80,.2);background:transparent;box-shadow:none}.orb span{inset:48px 58px 62px 42px;filter:contrast(1.2);clip-path:polygon(9% 18%,57% 0,92% 24%,100% 75%,58% 100%,6% 73%)}@keyframes float{50%{transform:translateY(-9px) rotate(4deg)}}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}.stat,.panel{border:1px solid var(--line);border-radius:16px;background:rgba(17,24,39,.82);box-shadow:0 14px 40px rgba(0,0,0,.13)}.stat{padding:21px}.stat span{color:var(--muted);font-size:12px}.stat strong{display:block;font-size:28px;margin-top:5px}.stat i{font-style:normal;color:var(--accent);float:right}.panel{padding:24px}.panel-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:18px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.calculator-preview{background:linear-gradient(145deg,#8b301f,#e3552f);border:0;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;min-height:245px}.calculator-preview .eyebrow,.calculator-preview p{color:rgba(255,255,255,.72)}.calculator-preview .secondary{margin-top:auto}.list{display:grid}.list-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.list-row:last-child{border:0}.list-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:var(--surface2);color:var(--accent2)}.list-row strong,.list-row small{display:block}.list-row small{color:var(--muted)}.toolbar{display:flex;gap:12px;margin-bottom:16px}.search{flex:1;display:flex;align-items:center;gap:9px;border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:0 13px}.search input{border:0;background:transparent}.table-panel{padding:0;overflow:hidden}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}th{font-size:10px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}td{color:#dbe0e9}.tag{display:inline-block;border-radius:99px;padding:4px 9px;background:var(--surface2);color:var(--accent2);font-size:11px}.row-actions button{background:transparent;border:0;color:var(--muted);cursor:pointer;padding:5px}.row-actions button:hover{color:#fff}.empty{text-align:center;color:var(--muted);padding:50px;display:none}.calculator-layout{display:grid;grid-template-columns:minmax(400px,1fr) minmax(360px,.8fr);gap:20px}.calc-form h3{font-size:25px;margin-bottom:22px}label{display:grid;gap:7px;color:var(--muted);font-size:12px;margin-bottom:15px}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;background:#0d1422;color:#fff;padding:12px 13px;font:inherit;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-card{border-radius:19px;padding:28px;background:linear-gradient(150deg,#f46b3d,#b93428);box-shadow:0 20px 55px rgba(221,76,43,.2)}.result-card .eyebrow{color:rgba(255,255,255,.72)}.result-line{display:flex;align-items:end;justify-content:space-between;margin-top:22px}.result-line strong{font-size:36px}.result-line.unit strong{font-size:22px}.divider{height:1px;background:rgba(255,255,255,.2);margin:24px 0}.breakdown{display:flex;gap:10px;margin-top:25px}.breakdown span{flex:1;background:rgba(0,0,0,.14);padding:11px;border-radius:10px;font-size:11px}.breakdown b{display:block;color:#fff;font-size:14px}.history{margin-top:18px}dialog{width:min(600px,calc(100% - 30px));border:1px solid var(--line);border-radius:17px;background:var(--surface);color:#fff;padding:0;box-shadow:var(--shadow)}dialog::backdrop{background:rgba(2,6,14,.78);backdrop-filter:blur(5px)}dialog form{padding:26px}.modal-head,.modal-actions{display:flex;justify-content:space-between;align-items:center}.modal-head{margin-bottom:24px}.modal-actions{justify-content:flex-end;margin-top:10px}.toast{position:fixed;right:24px;bottom:24px;padding:12px 17px;border-radius:10px;background:#fff;color:#111827;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.25s;z-index:20}.toast.show{opacity:1;transform:none}@media(max-width:1000px){.orb{width:170px;height:170px}.hero{padding:38px}.stats{grid-template-columns:repeat(2,1fr)}.panel-grid,.calculator-layout{grid-template-columns:1fr}}@media(max-width:720px){.sidebar{position:fixed;inset:auto 10px 10px;width:auto;height:62px;border:1px solid var(--line);border-radius:15px;padding:7px;flex-direction:row;justify-content:center}.brand,.sidebar-footer{display:none}nav{display:flex}.nav-item{font-size:0;padding:12px 18px}.nav-item span{font-size:20px;width:auto}main{margin-left:0;padding:23px 17px 100px}header{align-items:flex-start}header .primary{font-size:12px}.hero{min-height:390px;padding:28px;align-items:flex-start}.orb{position:absolute;right:17px;margin-top:170px;width:150px;height:150px;opacity:.7}.stats{grid-template-columns:1fr 1fr}.stat{padding:15px}.panel-grid{grid-template-columns:1fr}.toolbar{flex-direction:column}.form-row{grid-template-columns:1fr}.calculator-layout{display:block}.result-card{margin-top:16px}.result-line strong{font-size:29px}}
 .item-file-field{grid-column:1/-1}.selected-files{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.file-chip button{border:0;background:transparent;color:inherit;cursor:pointer;font-size:1.1rem;line-height:1;padding:0 2px}.file-chip button:hover{color:#b42318}.detail-files{margin:8px 0 0;padding-left:18px}.detail-files li{margin:5px 0}.detail-files small{color:#64748b;margin-left:6px}