:root{
  --navy:#1D3360; --navy-deep:#142347; --navy-soft:#33425C;
  --steel:#BCC0C7; --cream:#FAF8F2; --paper:#FFFFFF;
  --ink:#0E1428; --ink-soft:#4A556B; --line:#E5E2D8;
  --gold:#C4AE70; --gold-soft:#DDC893;
  --ok:#2E7D5B; --warn:#C58A2E; --bad:#C24A4A;
  --radius:14px; --shadow:0 8px 30px rgba(29,51,96,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'DM Sans',system-ui,sans-serif;color:var(--ink);background:var(--cream);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--navy)}
.serif{font-family:'Fraunces',Georgia,serif}

/* layout */
.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.side{background:var(--navy);color:#fff;padding:20px 16px;display:flex;flex-direction:column;gap:6px}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.brand svg{width:40px;height:40px}
.brand b{font-size:15px;letter-spacing:.3px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:#cdd5e6;
  cursor:pointer;font-size:14px;font-weight:500;border:none;background:none;text-align:left;width:100%}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:var(--gold);color:var(--navy);font-weight:700}
.side .spacer{flex:1}
.usage{font-size:12px;color:#9fb0d0;padding:10px 12px;border-top:1px solid rgba(255,255,255,.12);margin-top:8px}
.usage b{color:#fff}
.usage .bar{height:5px;background:rgba(255,255,255,.15);border-radius:3px;margin:4px 0 10px;overflow:hidden}
.usage .bar i{display:block;height:100%;background:var(--gold)}

.main{padding:0;overflow:auto;height:100vh}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-bottom:1px solid var(--line);
  background:var(--paper);position:sticky;top:0;z-index:5}
.topbar h1{font-size:18px;margin:0}
.pill{font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--cream);color:var(--ink-soft);border:1px solid var(--line)}
.view{padding:24px 28px;display:none}
.view.active{display:block}

/* maker layout: chat + preview */
.maker{display:grid;grid-template-columns:minmax(380px,1fr) 1fr;gap:20px;height:calc(100vh - 130px)}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden}
.panel-h{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.panel-h b{font-size:14px}

.chat{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:88%;padding:11px 14px;border-radius:14px;font-size:14px;line-height:1.5;white-space:pre-wrap}
.msg.user{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:4px}
.msg.assistant{align-self:flex-start;background:var(--cream);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.assistant .recs{margin:8px 0 0;padding:8px 10px;background:#fff;border:1px dashed var(--gold);border-radius:8px;font-size:13px}
.msg.assistant .recs ul{margin:4px 0 0 16px;padding:0}
.msg .thumb{display:block;max-width:120px;border-radius:8px;margin-bottom:6px}
.typing{align-self:flex-start;color:var(--ink-soft);font-size:13px;font-style:italic}

.composer{border-top:1px solid var(--line);padding:12px}
.modes{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}
.mode{font-size:12px;padding:5px 10px;border-radius:999px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink-soft)}
.mode.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.composer .row{display:flex;gap:8px;align-items:flex-end}
.composer textarea{flex:1;resize:none;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px;min-height:46px;max-height:140px}
.btn{border:none;border-radius:10px;padding:11px 16px;font-weight:700;font-size:14px;cursor:pointer;font-family:inherit}
.btn.primary{background:var(--gold);color:var(--navy)}
.btn.primary:hover{background:var(--gold-soft)}
.btn.dark{background:var(--navy);color:#fff}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.attach{font-size:12px;color:var(--ink-soft);margin-top:6px}
.attach input{display:none}

/* preview */
.preview-meta{padding:12px 18px;border-bottom:1px solid var(--line);font-size:13px}
.preview-meta .subject{font-weight:700;color:var(--ink)}
.preview-meta .pre{color:var(--ink-soft)}
.preview-frame{flex:1;border:none;width:100%;background:#f4f4f4}
.valid{display:flex;gap:10px;align-items:center;padding:10px 18px;border-top:1px solid var(--line);font-size:13px;flex-wrap:wrap}
.badge{font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px}
.badge.ok{background:#e6f4ec;color:var(--ok)}
.badge.bad{background:#fbeaea;color:var(--bad)}
.badge.warn{background:#fbf2e3;color:var(--warn)}
.preview-actions{display:flex;gap:8px;padding:12px 18px;border-top:1px solid var(--line)}

/* generic cards/tables */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card .k{font-size:12px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.5px}
.card .v{font-size:30px;font-weight:700;font-family:'Fraunces',serif;margin-top:4px}
.card .sub{font-size:12px;color:var(--ink-soft);margin-top:2px}
.note{font-size:12px;color:var(--ink-soft);background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:8px 10px;margin-top:8px}
table.tbl{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);font-size:14px}
.tbl th{background:var(--cream);font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-soft)}
.section-title{font-family:'Fraunces',serif;font-size:20px;margin:6px 0 14px}
.muted{color:var(--ink-soft)}
.row-gap{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

.version-badge{position:fixed;bottom:16px;right:16px;z-index:100;padding:6px 12px;border-radius:999px;
  font-family:'DM Sans',monospace,sans-serif;font-size:11px;font-weight:600;letter-spacing:.05em;
  background:var(--gold);color:var(--navy);box-shadow:0 4px 12px rgba(29,51,96,.15);user-select:none}
.version-badge.staging{background:var(--navy);color:var(--cream)}
.version-badge.local{background:#C24A4A;color:#fff}

@media (max-width:900px){
  .shell{grid-template-columns:1fr}
  .side{flex-direction:row;flex-wrap:wrap;align-items:center}
  .side .spacer,.usage{display:none}
  .maker{grid-template-columns:1fr;height:auto}
}