:root{--blue:#00247d;--blue-deep:#001a5c;--blue-soft:rgba(0,36,125,.06);--yellow:#ffcc00;--red:#c8102e;--bg:#f4f6fb;--white:#fff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--shadow:0 10px 30px rgba(0,36,125,.08);--r:16px;--r-sm:12px;--content-two-col:minmax(0,1.38fr) minmax(340px,.82fr)}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
.wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.stripe{height:4px;background:linear-gradient(90deg,var(--yellow) 0 33%,var(--blue) 33% 66%,var(--red) 66% 100%)}
.app{display:flex;min-height:calc(100vh - 4px)}
.sidebar{width:232px;background:var(--blue);color:#fff;padding:20px 16px;display:flex;flex-direction:column;gap:22px}
.logo{font-size:1.35rem;font-weight:900;letter-spacing:-.03em}
.logo span:last-child{color:var(--yellow)}
.nav-group{display:grid;gap:8px}
.nav-label{font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.48)}
.nav-chip{padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.1);font-size:.92rem;font-weight:600}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:48px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 18px;box-shadow:0 1px 3px rgba(0,36,125,.06)}
.top-title{font-size:.95rem;font-weight:800}
.page{padding:20px;display:grid;gap:20px}
.hero,.layout,.result-grid{display:grid;gap:20px}
.layout,.result-grid{grid-template-columns:var(--content-two-col)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:20px}
.eyebrow{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
h1,h2,h3,p{margin:0}
h1{font-size:clamp(1.7rem,2.2vw,2.2rem);line-height:1.05;letter-spacing:-.04em;max-width:none;white-space:nowrap}
h2{font-size:1.3rem;letter-spacing:-.03em}
h3{font-size:1rem}
.hero-card{display:grid;gap:10px;align-content:start}
.hero-copy{display:grid;gap:8px;max-width:64ch}
.lead{margin-top:0;color:var(--muted);max-width:72ch}
.hero-stats{display:none}
.stat strong{display:block;font-size:1rem}
.stat span,.muted{color:var(--muted)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.alert{padding:14px 16px;border-radius:14px;border:1px solid #fecaca;background:#fef2f2;color:#991b1b}
.ok{padding:14px 16px;border-radius:14px;border:1px solid #bbf7d0;background:#f0fdf4;color:#166534}
.form-grid{display:grid;gap:16px}
.prompt-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.prompt-tools label{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.prompt-actions{display:flex;gap:8px;flex-wrap:wrap}
.btn-assist{min-height:38px;padding:0 13px}
.prompt-hint{margin-top:-8px;color:var(--muted);font-size:.9rem}
.prompt-panel{display:grid;gap:16px;padding:16px;border:1px solid var(--line);border-radius:16px;background:#f8fafc}
.prompt-panel[hidden]{display:none}
.prompt-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.prompt-panel-head div{display:grid;gap:3px}
.prompt-panel-head span{color:var(--muted);font-size:.92rem}
.prompt-panel-actions{display:flex;justify-content:flex-end}
.textarea{width:100%;min-height:200px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:#fff;color:var(--text);resize:vertical;font:inherit}
.preset-row,.toolbar,.field-row,.result-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.preset,.btn,.logout-btn,.icon-btn{border:0;cursor:pointer;border-radius:12px;min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;text-decoration:none}
.preset{padding:0 14px;background:var(--blue-soft);color:var(--blue);font-weight:700}
.btn-primary{background:var(--blue);color:#fff;padding:0 18px;font-weight:700}
.btn-ghost,.logout-btn{background:#fff;color:var(--blue);border:1px solid var(--line);padding:0 16px;font-weight:700}
.btn-ghost:hover,.logout-btn:hover{background:#f8fafc}
.btn-primary:hover{background:var(--blue-deep)}
.btn:disabled,.btn[aria-busy="true"]{opacity:.72;cursor:wait}
.btn[aria-busy="true"] .spinner{display:inline-block}
.field{display:grid;gap:8px;flex:1 1 180px}
.field label{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
select,input[type="password"],input[type="text"]{width:100%;min-height:44px;padding:0 14px;border-radius:12px;border:1px solid var(--line);font:inherit;background:#fff}
.reference-wrap{display:grid;gap:12px}
.reference-box{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:16px;border:1px dashed #94a3b8;border-radius:16px;background:#f8fafc}
.icon-btn{width:44px;background:var(--blue);color:#fff;font-size:1.35rem;display:grid;place-items:center}
.ref-meta{display:grid;gap:2px}
.ref-preview{display:none;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff}
.ref-preview.active{display:grid;grid-template-columns:72px 1fr auto}
.ref-preview img{width:72px;height:72px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.remove-btn{background:#fff;color:#b91c1c;border:1px solid #fecaca;padding:0 12px;border-radius:10px;min-height:40px;cursor:pointer}
.cost-list,.meta-list{display:grid;gap:10px}
.cost-row,.meta-row{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:12px;background:var(--bg);border:1px solid var(--line)}
.preview-frame{border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff}
.preview-frame img{display:block;width:100%;height:auto}
.empty-state{padding:22px;border:1px dashed #cbd5e1;border-radius:16px;background:#f8fafc;color:var(--muted)}
.empty-state.compact{min-height:88px;display:flex;align-items:center}
.submit-status{display:inline-flex;align-items:center;gap:10px;color:var(--muted);font-weight:600}
.submit-status[hidden]{display:none}
.spinner{display:none;width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
.submit-status .spinner{display:inline-block;border-color:rgba(0,36,125,.18);border-top-color:var(--blue)}
@keyframes spin{to{transform:rotate(360deg)}}
@media (max-width:1100px){
  .layout,.result-grid{grid-template-columns:1fr}
  .sidebar{display:none}
}
@media (max-width:900px){
  h1{white-space:normal}
}
@media (max-width:720px){
  .page{padding:16px}
  .topbar{padding:0 16px}
  .card{padding:18px}
  .reference-box{grid-template-columns:auto 1fr}
  .reference-box .btn-ghost{grid-column:1/-1}
  .ref-preview.active{grid-template-columns:1fr}
  .ref-preview img{width:100%;height:auto;max-height:220px}
}