*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at 12% 8%,rgba(248,193,74,.18),transparent 28rem),radial-gradient(circle at 86% 12%,rgba(98,214,167,.13),transparent 26rem),linear-gradient(135deg,#101820,#172033 48%,#0e171c);color:#f7fafc;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}[data-theme=light] body{background:radial-gradient(circle at 12% 8%,rgba(248,193,74,.18),transparent 28rem),radial-gradient(circle at 86% 12%,rgba(20,137,103,.12),transparent 26rem),linear-gradient(135deg,#f6f8fb,#eaf0f7 52%,#f8fbfd);color:#14212d}button,input,textarea{font:inherit}main{width:min(1220px,calc(100vw - 32px));margin:0 auto;padding:30px 0 48px}.skip-link{position:absolute;top:10px;left:10px;transform:translateY(-140%);border-radius:8px;padding:10px 14px;background:#f8c14a;color:#101820;font-weight:900;text-decoration:none;z-index:20}.skip-link:focus{transform:translateY(0)}.toast-stack{position:fixed;top:18px;right:18px;z-index:30;display:grid;gap:10px;width:min(360px,calc(100vw - 32px))}.toast{display:flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:12px 14px;background:#101820f5;color:#f7fafc;box-shadow:0 18px 42px #0000003d}.toast-good svg{color:#62d6a7}.toast-warn svg{color:#f8c14a}.toast-bad svg{color:#ff7a7a}.ad-slot{min-height:96px;display:grid;place-items:center;margin:18px 0;overflow:hidden}.results .ad-slot{min-height:120px;margin:0 0 16px}.login-shell{min-height:100vh;display:grid;place-items:center}.login-card{width:min(460px,100%);display:grid;gap:16px;padding:28px;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:linear-gradient(135deg,#ffffff1c,#ffffff0a);box-shadow:0 24px 54px #00000042}[data-theme=light] .login-card,[data-theme=light] .hero,[data-theme=light] .module-board,[data-theme=light] .workspace-toolbar,[data-theme=light] .status-panel,[data-theme=light] .mission-grid article,[data-theme=light] .panel,[data-theme=light] .component-card,[data-theme=light] .metric,[data-theme=light] .shackle-table,[data-theme=light] .dimension-list,[data-theme=light] .calc-row{border-color:#14212d29;background:#ffffffc7;color:#14212d;box-shadow:0 18px 42px #172a4314}.login-card h1{font-size:clamp(2.4rem,8vw,4.2rem)}.login-card p:not(.eyebrow){margin:0;color:#cbd5e1}.login-form{display:grid;gap:14px}.password-field{position:relative;display:block}.password-field input{padding-right:48px}.password-toggle{position:absolute;top:50%;right:7px;width:36px;height:36px;display:grid;place-items:center;border:0;border-radius:8px;background:transparent;color:#cbd5e1;cursor:pointer}.checkbox-label{display:flex;align-items:center;gap:10px}.checkbox-label input{width:18px;min-height:18px;accent-color:#62d6a7}.secondary-action{width:100%;min-height:46px;border:1px solid rgba(98,214,167,.35);border-radius:8px;background:#62d6a714;color:#dffcf0;cursor:pointer;font-weight:800}.analysis-action{margin:14px 0 10px}.hero{min-height:260px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:end;padding:32px;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:linear-gradient(135deg,#ffffff1c,#ffffff0a);box-shadow:0 24px 54px #00000042}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 10px;color:#f8c14a;font-size:.78rem;font-weight:800;text-transform:uppercase}h1,h2,h3,p{letter-spacing:0}h1{margin:0;max-width:780px;font-size:clamp(2.7rem,6vw,5.9rem);line-height:.95}h2{margin:0;font-size:1.45rem}h3{margin:0 0 14px}.hero p:not(.eyebrow){max-width:760px;color:#d8dee9;font-size:1.08rem;line-height:1.65}.status-panel,.mission-grid article,.panel,.component-card,.metric{border:1px solid rgba(255,255,255,.15);border-radius:8px;background:#fff1}.status-panel{padding:18px}.status-panel span{display:flex;gap:8px;align-items:center;color:#cbd5e1}.status-panel strong{display:block;margin-top:12px;word-break:break-word}.status-panel small{display:block;margin-top:10px;color:#9fb0c5}.logout-button{width:100%;min-height:42px;margin-top:16px;border:1px solid rgba(255,255,255,.18);border-radius:8px;background:#ffffff14;color:#f7fafc;cursor:pointer;font-weight:800}.mission-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0}.workspace-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;margin:18px 0;padding:14px;border:1px solid rgba(255,255,255,.15);border-radius:8px;background:#ffffff0e}.breadcrumb,.toolbar-actions{display:flex;align-items:center;gap:10px;min-width:0}.breadcrumb{color:#cbd5e1;font-size:.88rem;font-weight:800}.breadcrumb span:after{content:"/";margin-left:10px;color:#77869a}.breadcrumb strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#f8c14a}.toolbar-actions{flex-wrap:wrap;justify-content:flex-end}.project-select{min-width:220px;color:#cbd5e1}.mission-grid article{padding:18px}.mission-grid svg{color:#62d6a7}.mission-grid b{display:block;margin:10px 0 6px}.mission-grid span,.summary{color:#c7d2df}[data-theme=light] .mission-grid span,[data-theme=light] .summary,[data-theme=light] .login-card p:not(.eyebrow),[data-theme=light] .status-panel span,[data-theme=light] .status-panel small,[data-theme=light] .breadcrumb,[data-theme=light] label,[data-theme=light] .project-select,[data-theme=light] .calc-row span,[data-theme=light] .shackle-table span,[data-theme=light] .shackle-table small{color:#415267}.workbench{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:18px}.module-board{margin:18px 0;padding:20px;border:1px solid rgba(255,255,255,.15);border-radius:8px;background:#ffffff0b}.module-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.module-card{min-height:112px;display:grid;gap:8px;text-align:left;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:14px;color:#f7fafc;background:linear-gradient(180deg,#ffffff1a,#ffffff0b);cursor:pointer}.module-card.selected{border-color:#f8c14a;box-shadow:0 0 0 1px #f8c14a33}.module-card span{color:#f8c14a;font-size:.72rem;font-weight:800;text-transform:uppercase}.module-card small{color:#a9b6c7}.module-placeholder{min-height:280px;display:grid;place-items:center;align-content:center;text-align:center}.module-placeholder p{max-width:680px;color:#cbd5e1;line-height:1.65}.panel{padding:20px}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}.icon-button,.primary-action,.ghost-button{border:1px solid rgba(255,255,255,.18);color:#f7fafc;border-radius:8px;background:linear-gradient(180deg,#ffffff21,#ffffff12);cursor:pointer}.icon-button{display:inline-flex;align-items:center;gap:8px;padding:10px 14px}.danger-action{border-color:#fb718561;color:#fecdd3;background:#7f1d1d33}.primary-action{width:100%;min-height:52px;margin-top:14px;font-weight:800;background:linear-gradient(135deg,#f8c14a,#62d6a7);color:#101820}.report-action{display:inline-flex;align-items:center;justify-content:center;gap:8px}.wide-label{margin-bottom:14px}.wide-button{width:100%;justify-content:center}.primary-action:disabled,.ghost-button:disabled,.icon-button:disabled{cursor:not-allowed;opacity:.48}.fastener-grid,.component-fields,.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.result-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}label{display:grid;gap:6px;color:#cbd5e1;font-size:.85rem;font-weight:700}.field-error input{border-color:#fb7185;box-shadow:0 0 0 1px #fb718559}.input-error{color:#fecdd3;background:#7f1d1d70;border:1px solid rgba(251,113,133,.45);border-radius:8px;padding:6px 8px;font-size:.78rem;line-height:1.25}input,select,textarea{width:100%;min-height:42px;border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:9px 11px;background:#080d12b3;color:#f7fafc}[data-theme=light] input,[data-theme=light] select,[data-theme=light] textarea{border-color:#14212d2e;background:#ffffffeb;color:#14212d}[data-theme=light] .icon-button,[data-theme=light] .ghost-button,[data-theme=light] .logout-button,[data-theme=light] .secondary-action{border-color:#14212d2e;background:#ffffffb8;color:#14212d}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(98,214,167,.72);outline-offset:2px}select{-webkit-appearance:auto;-moz-appearance:auto;appearance:auto}textarea{min-height:108px;resize:vertical;line-height:1.5}.component-list{display:grid;gap:12px;margin-top:14px}.form-section{margin:14px 0}.form-section h3{color:#f8c14a;font-size:1rem}.unit-selector{width:100%;margin:6px 0;text-align:left}.padeye-layout{display:grid;gap:16px}.shackle-preview{display:grid;grid-template-columns:minmax(220px,.9fr) minmax(240px,1fr);gap:14px;align-items:start;margin-top:12px}.shackle-preview img{width:100%;max-height:320px;object-fit:contain;border:1px solid rgba(255,255,255,.14);border-radius:8px;background:#fffffff0}.shackle-table,.dimension-list{border:1px solid rgba(255,255,255,.14);border-radius:8px;background:#ffffff0e;padding:12px}.shackle-table{display:grid;gap:8px}.shackle-table span,.shackle-table small{color:#cbd5e1}.dimension-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.dimension-list span{display:grid;gap:3px;color:#dbe6f3;font-size:.86rem}.dimension-list b{color:#f8c14a}.info-panel{border:1px solid rgba(98,214,167,.26);border-radius:8px;margin-bottom:14px;padding:12px 14px;background:#62d6a70f;color:#dbe6f3}.info-panel summary{display:flex;align-items:center;gap:8px;cursor:pointer;color:#62d6a7;font-weight:900}.info-panel p{margin:8px 0 12px;color:#cbd5e1;line-height:1.55}.info-panel b{color:#f8c14a}.component-card{padding:14px}.component-title{display:grid;grid-template-columns:1fr auto;gap:10px;margin-bottom:12px}.drawing-upload{grid-column:span 2}.drawing-markup{margin-top:14px;border:1px solid rgba(98,214,167,.24);border-radius:8px;overflow:hidden;background:#080d128c}.markup-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto auto auto auto;gap:10px;align-items:center;padding:10px;border-bottom:1px solid rgba(255,255,255,.12);color:#cbd5e1;font-size:.82rem;font-weight:800}.markup-toolbar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-tabs{display:flex;gap:6px;overflow-x:auto;padding:8px 10px;border-bottom:1px solid rgba(255,255,255,.12)}.attachment-tabs button{max-width:190px;min-height:32px;flex:0 0 auto;border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:0 10px;background:#ffffff12;color:#cbd5e1;cursor:pointer;font-size:.78rem;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-tabs button.selected{border-color:#62d6a7b8;background:#62d6a729;color:#f7fafc}.color-tools{display:flex;gap:6px}.color-tools button{width:24px;height:24px;border:2px solid rgba(255,255,255,.26);border-radius:999px;cursor:pointer}.color-tools button.selected{border-color:#f7fafc;box-shadow:0 0 0 2px #f8c14a57}.mini-button{min-height:32px;border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:0 10px;background:#ffffff14;color:#f7fafc;cursor:pointer;font-weight:800}.drawing-markup canvas{width:100%;max-height:520px;display:block;object-fit:contain;background:#f8fafc;touch-action:none;cursor:crosshair}.image-zoom{position:fixed;top:0;right:0;bottom:0;left:0;z-index:80;display:grid;place-items:center;padding:22px;background:#03070cd1;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.image-zoom-panel{width:min(1180px,96vw);max-height:92vh;display:grid;grid-template-rows:auto minmax(0,1fr);border:1px solid rgba(255,255,255,.18);border-radius:8px;overflow:hidden;background:#0b1118;box-shadow:0 24px 90px #0000006b}.image-zoom-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 12px;color:#f7fafc;font-weight:900;border-bottom:1px solid rgba(255,255,255,.14)}.image-zoom-toolbar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.image-zoom img{width:100%;height:100%;max-height:calc(92vh - 54px);display:block;object-fit:contain;background:#f8fafc}.ghost-button{width:42px;height:42px;display:grid;place-items:center}.metric{padding:14px}.metric span{display:block;color:#a9b6c7;font-size:.78rem;font-weight:800;text-transform:uppercase}.metric strong{display:block;margin-top:8px;font-size:1.3rem}.metric-good strong,.good-icon,.verdict.good{color:#62d6a7}.metric-warn strong,.warn-icon,.verdict.warn{color:#f8c14a}.metric-bad strong,.verdict.bad{color:#ff7a7a}.verdicts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 12px}.verdicts.single{grid-template-columns:1fr}.verdict{border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:12px;background:#0000002e;font-weight:800}.notice{border:1px solid rgba(248,193,74,.35);border-radius:8px;margin-bottom:14px;padding:12px;color:#f8c14a;background:#f8c14a14}.bell-card{border:1px solid rgba(255,255,255,.15);border-radius:8px;margin:16px 0;padding:0;overflow:hidden;background:#111827}.bell-title{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;color:#f7fafc;background:#00000029}.bell-title span,.bell-card small{color:#f7fafc}.bell-title>span{border:1px solid rgba(98,214,167,.35);border-radius:8px;background:#62d6a71a;padding:4px 10px;font-size:clamp(.95rem,2.4vw,1.35rem);font-weight:900}.bell-card svg{width:100%;height:auto;display:block}.empty-state{min-height:420px;display:grid;place-items:center;align-content:center;gap:12px;color:#cbd5e1;text-align:center}.result-skeleton{display:grid;gap:14px}.result-skeleton span{height:70px;border-radius:8px;background:linear-gradient(90deg,#ffffff14,#ffffff2e,#ffffff14);background-size:220% 100%;animation:skeleton-shimmer 1.2s linear infinite}@keyframes skeleton-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.contributors{margin-top:18px}.analysis-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:75;display:grid;place-items:center;padding:22px;background:#03070cc7;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.analysis-panel{width:min(720px,96vw);max-height:92vh;overflow:auto;display:grid;gap:14px;border:1px solid rgba(98,214,167,.28);border-radius:8px;padding:16px;background:#101822;box-shadow:0 24px 90px #0000006b}.analysis-header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:start}.analysis-header h3{margin:4px 0 0}.flexible-list,.optimization-result,.proposal-list{display:grid;gap:10px}.flexible-option{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px;padding:10px;border:1px solid rgba(255,255,255,.12);border-radius:8px;background:#ffffff0b}.flexible-option input{width:18px;min-height:18px;accent-color:#62d6a7}.flexible-option small{display:block;margin-top:4px;color:#a9b6c7;line-height:1.35}.proposal-list div{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:9px 10px;border-radius:8px;background:#ffffff0e;color:#dbe6f3}.proposal-list b{color:#f8c14a;white-space:nowrap}.calculation-steps{margin-top:20px;display:grid;gap:10px}.calculation-steps h3{margin:0}.calc-row{display:grid;grid-template-columns:minmax(150px,.36fr) minmax(0,1fr);gap:12px;align-items:start;padding:10px 12px;border:1px solid rgba(255,255,255,.12);border-radius:8px;background:#ffffff0b}.calc-row b{color:#f8c14a}.calc-row span{color:#dbe6f3;line-height:1.45}.bar-row{display:grid;grid-template-columns:minmax(120px,1fr) minmax(120px,1.2fr) 58px;gap:10px;align-items:center;padding:8px 0;color:#d7e0ec;font-size:.88rem}.bar-row div{height:10px;border-radius:999px;background:#ffffff1a;overflow:hidden}.bar-row i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#62d6a7,#f8c14a)}.bar-row b{text-align:right}@media (max-width: 920px){.hero,.workbench,.workspace-toolbar{grid-template-columns:1fr}.toolbar-actions{justify-content:stretch}.toolbar-actions .icon-button,.toolbar-actions .project-select{flex:1 1 180px}.mission-grid,.module-grid,.fastener-grid,.component-fields,.result-grid,.shackle-preview{grid-template-columns:1fr}.dimension-list{grid-template-columns:repeat(2,minmax(0,1fr))}}