:root{--blue:#0b5cad;--blue-dark:#123a65;--ink:#142238;--muted:#65758b;--line:#dce5ee;--surface:#f4f7fa;--white:#fff;--danger:#a72828;--warning:#8a5b00;--radius:16px;--shadow:0 18px 50px rgba(18,48,78,.08)}
*{box-sizing:border-box}html{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#eef3f7}body{margin:0;min-height:100vh}.app-header{height:78px;padding:0 clamp(20px,4vw,64px);display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.app-brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}.app-brand small{display:block;color:var(--muted);font-size:12px;margin-top:2px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;font-size:21px}.app-main{width:min(1240px,calc(100% - 40px));margin:42px auto 64px}.app-footer{display:flex;justify-content:center;gap:14px;padding:28px;color:var(--muted);font-size:13px}.app-footer a{color:var(--blue)}h1{font-size:clamp(28px,3.2vw,44px);line-height:1.08;margin:7px 0 10px;letter-spacing:-.8px}h2{margin:0 0 4px;font-size:21px}.lead{color:var(--muted);font-size:16px;line-height:1.55;margin:0;max-width:760px}.eyebrow,.label-caps{font-size:12px;line-height:1;text-transform:uppercase;letter-spacing:1.3px;color:var(--blue);font-weight:800}.page-head{display:flex;justify-content:space-between;gap:36px;align-items:flex-end;margin-bottom:30px}.steps{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px;max-width:520px}.steps span{padding:8px 11px;border:1px solid var(--line);background:rgba(255,255,255,.65);border-radius:999px;color:var(--muted);font-size:12px;white-space:nowrap}.steps .active{color:#fff;background:var(--blue);border-color:var(--blue)}.steps .done{color:var(--blue-dark);background:#e4f0fb;border-color:#c8dff4}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:18px 0;box-shadow:var(--shadow)}.panel-head{display:flex;align-items:flex-start;gap:14px;padding-bottom:24px;margin-bottom:24px;border-bottom:1px solid var(--line)}.panel-head p,.sheet-panel p{margin:2px 0 0;color:var(--muted);font-size:14px}.step-index{display:grid;place-items:center;flex:0 0 38px;height:38px;border-radius:10px;background:#e6f0fa;color:var(--blue);font-weight:800}.form-grid{display:grid;gap:20px}.form-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field{display:flex;flex-direction:column;gap:7px}.field>span{font-size:13px;font-weight:700;color:#354961}.field input,.field select,.field textarea,.mapping-row select{width:100%;border:1px solid #cbd7e3;border-radius:9px;background:#fff;color:var(--ink);padding:11px 13px;font:inherit;outline:none;transition:.15s}.field input:focus,.field select:focus,.field textarea:focus,.mapping-row select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(11,92,173,.11)}.field textarea{resize:vertical}.field.full{grid-column:1/-1}.field.compact{min-width:280px}.gap-top{margin-top:22px}.mode-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;border:0;padding:0;margin:0}.mode-switch label{cursor:pointer}.mode-switch input{position:absolute;opacity:0}.mode-switch span{display:block;border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:.15s}.mode-switch b,.mode-switch small{display:block}.mode-switch small{margin-top:4px;color:var(--muted)}.mode-switch input:checked+span{border-color:var(--blue);background:#edf5fd;box-shadow:inset 0 0 0 1px var(--blue)}.upload-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.file-drop{position:relative;display:grid;grid-template-columns:auto 1fr;column-gap:14px;align-items:center;min-height:140px;border:1.5px dashed #b7c8d9;border-radius:13px;padding:20px;cursor:pointer;transition:.15s}.file-drop:hover,.file-drop.has-file{border-color:var(--blue);background:#f4f9fe}.file-drop input{position:absolute;inset:0;opacity:0;cursor:pointer}.file-drop b,.file-drop small,.file-drop em{grid-column:2}.file-drop small{color:var(--muted);margin:3px 0 8px}.file-drop em{color:var(--blue);font-style:normal;font-weight:700;overflow:hidden;text-overflow:ellipsis}.file-icon{grid-row:1/4;display:grid;place-items:center;width:58px;height:58px;border-radius:14px;background:#e4f0fb;color:var(--blue);font-size:12px;font-weight:900}.button{appearance:none;border:1px solid transparent;border-radius:9px;padding:10px 16px;font:inherit;font-weight:750;text-decoration:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button-primary{background:var(--blue);color:#fff}.button-primary:hover{background:#084f96}.button-secondary{background:#fff;color:var(--blue-dark);border-color:#cbd7e3}.button-ghost{background:transparent;color:var(--muted);border-color:var(--line)}.button-large{padding:13px 20px}.button-wide{width:100%}.actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px}.actions-right{justify-content:flex-end}.alert{padding:16px 18px;border-radius:12px;margin:18px 0;border:1px solid}.alert ul{margin:10px 0 0;padding-left:20px}.alert li{margin:5px 0}.alert-warning{color:#674500;background:#fff8e5;border-color:#edd69c}.alert-error,.alert-danger{color:#7b1f1f;background:#fff1f1;border-color:#efbcbc}.sheet-panel{display:flex;justify-content:space-between;align-items:center;gap:24px}.mapping-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}.mapping-row{display:grid;grid-template-columns:minmax(110px,.75fr) minmax(180px,1.25fr);gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid #edf1f5}.mapping-row small{display:block;color:var(--muted);font-size:11px;margin-top:3px}.document-preview{background:#fff;border-radius:5px;padding:44px;box-shadow:0 20px 70px rgba(23,49,77,.13);margin:28px auto;max-width:1160px}.preview-header{display:flex;justify-content:space-between;gap:24px;border-top:5px solid var(--blue);padding-top:24px}.preview-header>div:last-child{text-align:right}.preview-header h2{font-size:24px;color:var(--blue-dark)}.preview-header p{color:var(--muted)}.preview-brand{font-size:20px;color:var(--blue);font-weight:850}.preview-header a{color:var(--muted)}.preview-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px;background:#f1f6fb;border:1px solid #d9e5ef;border-radius:10px;padding:20px;margin:28px 0}.preview-meta small,.preview-meta b,.preview-meta span{display:block}.preview-meta small{text-transform:uppercase;letter-spacing:.7px;color:var(--muted);font-size:11px;margin-bottom:4px}.preview-meta span{color:var(--muted);margin-top:3px}.spec-meta{display:flex;gap:22px;margin-bottom:12px;color:var(--muted);font-size:13px}.table-wrap{overflow-x:auto}.spec-table{width:100%;border-collapse:collapse;font-size:12px}.spec-table th{background:#174d82;color:#fff;text-align:left;padding:9px 8px;white-space:nowrap}.spec-table td{padding:9px 8px;border:1px solid #dbe3eb;vertical-align:top}.spec-table tbody tr:nth-child(even){background:#f7f9fb}.spec-table .num{text-align:right;white-space:nowrap}.spec-table a{color:var(--blue)}.preview-total{margin:22px 0 24px auto;width:max-content;min-width:300px;background:#e7f1fa;border-left:4px solid var(--blue);padding:16px 20px;text-align:right}.preview-total span,.preview-total b{display:block}.preview-total span{font-size:12px;color:var(--muted);letter-spacing:1px}.preview-total b{font-size:25px;color:var(--blue-dark);margin-top:2px}.preview-terms{border-top:1px solid var(--line);padding-top:14px}.preview-terms p{margin:8px 0}.generate-bar{display:flex;justify-content:space-between;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;position:sticky;bottom:14px;box-shadow:0 15px 40px rgba(24,49,76,.14)}.generate-bar .actions{margin:0}.confirm{display:flex;align-items:flex-start;gap:10px;max-width:540px;font-size:13px;color:#644}.confirm input{margin-top:3px}.ok-mark{color:#187545;font-weight:750}.auth-card{width:min(460px,100%);margin:9vh auto;background:#fff;border:1px solid var(--line);border-radius:18px;padding:42px;box-shadow:var(--shadow)}.auth-card .stack{margin-top:28px}.stack>*+*{margin-top:16px}.error-card{display:flex;gap:24px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:40px;margin:10vh auto;width:min(760px,100%)}.error-symbol{display:grid;place-items:center;flex:0 0 56px;height:56px;border-radius:50%;background:#fde8e8;color:var(--danger);font-size:28px;font-weight:900}.sr-only{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:900px){.page-head{display:block}.steps{justify-content:flex-start;margin-top:20px}.form-grid.three{grid-template-columns:1fr}.mapping-grid{grid-template-columns:1fr}.document-preview{padding:24px}.generate-bar{position:static;display:block}.generate-bar .actions{margin-top:18px}.sheet-panel{align-items:flex-start;flex-direction:column}}
@media(max-width:640px){.app-main{width:min(100% - 24px,1240px);margin-top:24px}.app-header{padding:0 14px}.app-brand small{display:none}.panel{padding:20px}.form-grid.two,.mode-switch,.upload-grid,.preview-meta{grid-template-columns:1fr}.mapping-row{grid-template-columns:1fr}.actions{align-items:stretch;flex-direction:column-reverse}.actions .button{width:100%}.preview-header{display:block}.preview-header>div:last-child{text-align:left;margin-top:20px}.document-preview{padding:16px}.generate-bar{padding:16px}.spec-meta{display:block}.spec-meta span{display:block;margin:4px 0}.auth-card{padding:28px}.app-header form .button{padding:8px 10px}}