:root{
  --orange:#eb680b;
  --orange-dark:#c75608;
  --orange-soft:#fff4ec;
  --ink:#18181b;
  --muted:#6f7178;
  --muted-2:#90929a;
  --line:#e5e6e9;
  --line-strong:#d7d8dc;
  --soft:#f7f7f8;
  --bg:#f3f4f6;
  --card:#ffffff;
  --ok:#18794e;
  --ok-soft:#eaf8f0;
  --danger:#b42318;
  --danger-soft:#fff1f0;
  --dev:#5f6470;
  --dev-soft:#f5f6f8;
  --shadow:0 8px 28px rgba(23,23,23,.055);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,select,input{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.46}

.appbar{background:#fff;border-bottom:1px solid var(--line);padding:22px clamp(20px,4vw,56px);display:flex;justify-content:space-between;gap:28px;align-items:center;position:sticky;top:0;z-index:20}
.brand-block{display:flex;gap:15px;align-items:center;min-width:0}
.brand-mark{width:44px;height:44px;border-radius:13px;background:var(--orange);color:#fff;display:grid;place-items:center;font-weight:850;letter-spacing:-.04em;box-shadow:0 5px 14px rgba(235,104,11,.22);flex:0 0 auto}
.eyebrow,.section-kicker{font-size:10.5px;letter-spacing:.15em;font-weight:850;color:var(--orange);text-transform:uppercase}
.appbar h1{font-size:clamp(21px,2.3vw,30px);letter-spacing:-.025em;margin:4px 0 3px}
.appbar p{margin:0;color:var(--muted);font-size:13px}
.appbar-actions{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex:0 0 auto}
.engine-status,.mini-live{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);font-weight:650}
.status-dot{width:7px;height:7px;border-radius:50%;background:#a7a9af;display:inline-block;box-shadow:0 0 0 3px rgba(167,169,175,.12)}
.engine-status.ok .status-dot,.mini-live .status-dot{background:var(--ok);box-shadow:0 0 0 3px rgba(24,121,78,.12)}
.mode-switch{background:#f0f1f3;border:1px solid #e7e8ea;border-radius:11px;padding:4px;display:flex;gap:3px}
.mode-btn{border:0;background:transparent;color:#696b72;padding:8px 11px;border-radius:8px;font-size:12px;font-weight:750;transition:.15s ease}
.mode-btn:hover{color:var(--ink)}
.mode-btn.active{background:#fff;color:var(--ink);box-shadow:0 1px 4px rgba(0,0,0,.08)}

.shell{max-width:1540px;margin:0 auto;padding:26px}
.workflow-card,.card,.status-card,.template-summary-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.workflow-card{padding:18px 20px;display:grid;grid-template-columns:minmax(230px,.75fr) minmax(430px,1.35fr) minmax(230px,.7fr);gap:24px;align-items:center;margin-bottom:22px}
.workflow-title,.title-with-step{display:flex;align-items:flex-start;gap:12px}
.workflow-title{align-items:center}
.step-number{width:29px;height:29px;border-radius:9px;background:var(--orange-soft);color:var(--orange);display:grid;place-items:center;font-size:12px;font-weight:850;flex:0 0 auto;border:1px solid #f9dfcd}
.workflow-card h2,.card h2,.status-card h2{font-size:19px;letter-spacing:-.015em;margin:4px 0 0}
.tabs{display:flex;background:#f3f4f5;border:1px solid #e8e9eb;padding:4px;border-radius:11px;gap:4px}
.tab{flex:1;border:0;background:transparent;color:#5f6168;padding:10px 12px;border-radius:8px;font-weight:750;font-size:13px;transition:.14s ease}
.tab:hover{background:#fff;color:#222}
.tab.active{background:#1c1c1e;color:#fff;box-shadow:0 2px 7px rgba(0,0,0,.12)}
.variant-control{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.field-label{font-size:11px;color:var(--muted);font-weight:750}
.variant-row{display:flex;align-items:center;gap:8px}
select{border:1px solid var(--line-strong);border-radius:9px;padding:9px 34px 9px 10px;background:#fff;color:var(--ink);min-width:148px}
.badge{display:inline-flex;align-items:center;border-radius:999px;background:#f0f1f3;border:1px solid #e3e4e7;padding:6px 9px;font-size:11px;font-weight:700;color:#555860;white-space:nowrap}
.badge-success{background:var(--ok-soft);border-color:#d6f0e1;color:var(--ok)}
.badge-neutral{background:#f6f6f7;color:#686a71}

.layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:22px;align-items:start}
.workspace,.sidebar{display:flex;flex-direction:column;gap:20px}
.card{padding:22px}
.card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:18px}
.compact-step .step-number{margin-top:1px}
.muted{color:var(--muted);font-size:13px;line-height:1.5;margin:6px 0 0;max-width:820px}

.source-card{padding-bottom:24px}
.source-layout{display:grid;grid-template-columns:minmax(260px,.72fr) minmax(380px,1.28fr);gap:18px;margin-top:18px;align-items:stretch}
.upload-column{display:flex;flex-direction:column;gap:11px;min-width:0}
.dropzone{min-height:226px;border:1.5px dashed #cacdd2;background:#fafbfb;border-radius:14px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;text-align:center;cursor:pointer;padding:22px;transition:.16s ease}
.dropzone:hover{border-color:#aaaeb5;background:#fff}
.dropzone.drag{border-color:var(--orange);background:var(--orange-soft);box-shadow:inset 0 0 0 1px rgba(235,104,11,.15)}
.dropzone input,.buttonlike input{display:none}
.upload-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#fff;border:1px solid var(--line);font-size:22px;color:var(--orange);box-shadow:0 2px 8px rgba(0,0,0,.04);margin-bottom:2px}
.dropzone strong{font-size:14px}
.dropzone span:last-child{font-size:11px;color:var(--muted)}
.source-status-card{border:1px solid var(--line);border-radius:11px;padding:10px 11px;display:grid;grid-template-columns:9px minmax(0,1fr);gap:10px;align-items:start;background:#fafafa;transition:.16s ease;min-height:58px}
.source-status-dot{width:8px;height:8px;border-radius:50%;background:#a9abb1;margin-top:5px}
.source-status-card strong{display:block;font-size:12px;margin-bottom:2px}
.source-status-card span:last-child{display:block;color:var(--muted);font-size:11px;line-height:1.35;overflow-wrap:anywhere}
.source-status-card.is-ready{background:var(--ok-soft);border-color:#d5ecdf}
.source-status-card.is-ready .source-status-dot{background:var(--ok)}
.source-status-card.is-loading{background:#fff9f4;border-color:#f3d8c4}
.source-status-card.is-loading .source-status-dot{background:var(--orange)}
.source-status-card.is-error{background:var(--danger-soft);border-color:#f1cfcb}
.source-status-card.is-error .source-status-dot{background:var(--danger)}
.source-preview-panel{min-width:0;display:flex;flex-direction:column}
.preview-label-row{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:7px}
.preview-note{font-size:10.5px;color:var(--muted-2);text-align:right}
.checker{background-color:#f1f1f1;background-image:linear-gradient(45deg,#e1e1e1 25%,transparent 25%),linear-gradient(-45deg,#e1e1e1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e1e1e1 75%),linear-gradient(-45deg,transparent 75%,#e1e1e1 75%);background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0}
.source-preview-box{position:relative;height:320px;max-height:42vh;min-height:230px;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:grid;place-items:center;background-color:#f3f3f3}
.source-preview-box img{display:block;width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain;padding:14px}
.source-preview-box img:not([src]),.source-preview-box img[src=""]{visibility:hidden}

.generate-card{display:flex;justify-content:space-between;align-items:center;gap:24px;border-left:3px solid var(--orange);padding-left:20px}
.generate-copy{min-width:0}
.primary-button,.secondary-button,.buttonlike{border-radius:10px;padding:10px 14px;font-weight:750;font-size:13px;transition:.15s ease;display:inline-flex;align-items:center;justify-content:center;text-decoration:none}
.primary-button{border:1px solid var(--orange);background:var(--orange);color:#fff;box-shadow:0 3px 10px rgba(235,104,11,.16)}
.primary-button:hover:not(:disabled){background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-1px)}
.secondary-button,.buttonlike{border:1px solid var(--line-strong);background:#fff;color:#2b2c30}
.secondary-button:hover:not(:disabled),.buttonlike:hover{border-color:#b8bbc0;background:#fafafa;transform:translateY(-1px)}
.generate-button{min-width:210px;padding:13px 18px;font-size:14px;white-space:nowrap}
.download-button{white-space:nowrap}

.preview-frame{position:relative;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:grid;place-items:center;background-color:#f1f1f1}
.generated-frame{height:min(520px,52vw);min-height:330px;max-height:560px;margin-top:16px}
.generated-frame canvas,.compare-frame canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}
.generated-frame canvas{width:100%;height:100%;object-fit:contain}
.empty{position:absolute;inset:0;display:grid;place-items:center;color:#8a8c93;font-size:12px;text-align:center;padding:22px;pointer-events:none;background:rgba(255,255,255,.15)}
.compact-empty{font-size:11px}
.table-stage-wrap{position:relative;margin-top:16px;border-radius:14px;overflow:hidden;background:#d3d3d3;border:1px solid var(--line)}
#tablePreviewCanvas{display:block;width:100%;height:auto;max-height:650px;object-fit:contain;background:#ddd}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.compare-grid h3{font-size:12px;margin:0 0 7px;color:#63656c}
.compare-frame{height:300px;min-height:220px}
.compare-frame img{display:block;width:100%;height:100%;object-fit:contain;padding:10px}

.status-card{padding:18px;position:sticky;top:126px}
.status-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.status-card h2{font-size:17px}
.diagnostics{display:grid;grid-template-columns:92px minmax(0,1fr);gap:8px 9px;font-size:11.5px;margin:15px 0 0;padding-top:14px;border-top:1px solid var(--line)}
.diagnostics dt{color:#92949a;font-weight:650}
.diagnostics dd{margin:0;word-break:break-word;line-height:1.35;color:#44464b}
.diagnostics dd.good{color:var(--ok);font-weight:800}
.diagnostics dd.error{color:var(--danger);font-weight:800}
.template-summary-card{padding:17px 18px;box-shadow:none;background:#fbfbfc}
.template-summary-card h3{font-size:15px;margin:5px 0 6px}
.template-summary-card p{font-size:11.5px;line-height:1.5;color:var(--muted);margin:0 0 13px}
.summary-row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-top:1px solid #e9eaec;font-size:11.5px}
.summary-row span{color:#8b8d93}.summary-row strong{font-weight:750;color:#3b3d42}

.developer-card{background:var(--dev-soft);border-color:#dfe1e5;box-shadow:none;position:relative;overflow:hidden}
.developer-banner{position:absolute;top:0;right:0;background:#6d717c;color:#fff;padding:5px 9px;border-radius:0 0 0 9px;font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;font-weight:800}
.muted-kicker{color:#70737b}
.developer-only.hidden,.hidden{display:none!important}
.cal-section{border-top:1px solid #dcdee2;padding-top:14px;margin-top:14px}
.cal-section:first-child{border-top:0;margin-top:8px;padding-top:0}
.cal-section h3{font-size:12px;margin:0 0 9px;color:#4d5058}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:10px;color:#777a82;font-weight:650}
.field input,.field select{width:100%;border:1px solid #d4d6db;border-radius:8px;padding:8px;background:#fff;font-size:12px}
.quad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.point-box{background:#fff;padding:8px;border-radius:8px;border:1px solid #e0e1e4}
.point-box strong{font-size:9.5px;color:#777a82;display:block;margin-bottom:5px}
.point-box input{width:100%;padding:6px;border:1px solid #d7d8dc;border-radius:6px;margin:2px 0;font-size:11px}
.dev-actions{display:grid;gap:8px;margin-top:16px}
.buttonlike{cursor:pointer}
.buttonlike.full,button.full{width:100%;margin-top:8px}
.support-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.support-row{display:grid;grid-template-columns:22px 1fr 68px;gap:8px;align-items:center;border:1px solid #dcdee2;background:#fff;padding:9px;border-radius:9px}
.support-row label{font-size:11px}.support-row input[type=number]{width:100%;border:1px solid #d7d8dc;border-radius:7px;padding:6px;font-size:11px}
.note{font-size:11px;color:#64666d;line-height:1.45;background:#fff;border:1px solid #dfe1e4;padding:9px;border-radius:9px;margin-top:11px}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f0f0f2;padding:1px 4px;border-radius:4px;font-size:.93em}
footer{text-align:center;color:#8b8d93;font-size:11px;padding:28px}

@media(max-width:1180px){
  .workflow-card{grid-template-columns:1fr 1.35fr}.variant-control{grid-column:1/-1;align-items:flex-start}.layout-grid{grid-template-columns:minmax(0,1fr) 310px}.source-layout{grid-template-columns:1fr}.source-preview-box{height:300px;max-height:none}.status-card{top:122px}
}
@media(max-width:920px){
  .appbar{position:static;flex-direction:column;align-items:flex-start}.appbar-actions{align-items:flex-start;width:100%}.mode-switch{width:100%}.mode-btn{flex:1}.layout-grid{grid-template-columns:1fr}.sidebar{order:-1}.status-card{position:static}.template-summary-card{display:none}.workflow-card{grid-template-columns:1fr}.variant-control{grid-column:auto}.generate-card{flex-direction:column;align-items:stretch}.generate-button{width:100%}
}
@media(max-width:640px){
  .shell{padding:14px}.appbar{padding:18px}.brand-mark{width:40px;height:40px}.card,.workflow-card{padding:16px;border-radius:14px}.tabs{flex-direction:column}.card-header{flex-direction:column}.source-layout{gap:14px}.source-preview-box{height:260px;min-height:210px}.compare-grid{grid-template-columns:1fr}.field-grid{grid-template-columns:1fr}.quad-grid{grid-template-columns:1fr 1fr}.mode-switch{flex-direction:column}.diagnostics{grid-template-columns:82px minmax(0,1fr)}.generated-frame{height:350px;min-height:260px}
}