:root{
  --bg:#0B1220; --panel:#121A2B; --panel-2:#16233B; --line:rgba(200,210,230,0.14);
  --text:#E8EAF0; --muted:#93A0B8; --gold:#C9A24B; --gold-light:#E4C471; --teal:#7FDCD3;
  --red:#E5697A; --green:#6FCF97; --blue:#7FA8DC;
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-display:"Fraunces",Georgia,serif;
  --font-mono:"IBM Plex Mono","Courier New",monospace;
}
*{box-sizing:border-box;}
body{ margin:0; background:var(--bg); color:var(--text); font-family:var(--font-body); font-size:15px; line-height:1.5;}
a{ color:inherit; }
h1,h2,h3{ font-family:var(--font-display); font-weight:600; margin:0 0 6px;}
.muted{ color:var(--muted); }
code{ background:var(--panel-2); padding:2px 6px; border-radius:4px; font-family:var(--font-mono); font-size:.85em;}

/* Auth pages */
.auth-body{ display:flex; align-items:center; justify-content:center; min-height:100vh; padding:24px;}
.auth-card{ width:100%; max-width:400px; background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:36px;}
.auth-card h1{ font-size:1.5rem; margin-bottom:14px;}
.auth-card .logo{ height:34px; margin-bottom:22px;}
.error{ background:rgba(229,105,122,.12); border:1px solid rgba(229,105,122,.4); color:#ffb4bf; padding:10px 14px; border-radius:8px; font-size:.88rem; margin-bottom:16px;}
.success-box{ background:rgba(111,207,151,.12); border:1px solid rgba(111,207,151,.4); color:#a8f0c4; padding:10px 14px; border-radius:8px; font-size:.88rem; margin-bottom:16px;}

form label{ display:block; font-size:.82rem; color:var(--muted); margin:14px 0 6px;}
form label:first-of-type{ margin-top:0; }
input, select, textarea{
  width:100%; background:var(--panel-2); border:1px solid var(--line); color:var(--text);
  padding:11px 13px; border-radius:8px; font-family:var(--font-body); font-size:.94rem;
}
textarea{ min-height:90px; resize:vertical;}
input:focus, select:focus, textarea:focus{ outline:none; border-color:var(--gold); box-shadow:0 0 0 3px rgba(201,162,75,.16);}

.btn{ display:inline-flex; align-items:center; gap:8px; padding:11px 20px; border-radius:8px; font-weight:600; font-size:.9rem; border:1px solid transparent; cursor:pointer; margin-top:18px;}
.btn-primary{ background:linear-gradient(135deg,var(--gold-light),var(--gold)); color:#1a1406; }
.btn-primary:hover{ filter:brightness(1.05); }
.btn-ghost{ background:transparent; border-color:var(--line); color:var(--text);}
.btn-ghost:hover{ border-color:var(--gold); }
.btn-sm{ padding:7px 14px; font-size:.82rem; margin-top:0;}
.btn-danger{ background:rgba(229,105,122,.15); border-color:rgba(229,105,122,.5); color:#ffb4bf;}

/* App shell */
.app{ display:flex; min-height:100vh; }
.sidebar{
  width:230px; flex-shrink:0; background:var(--panel); border-right:1px solid var(--line);
  padding:22px 16px; position:sticky; top:0; height:100vh; overflow-y:auto;
}
.sidebar .logo{ height:30px; margin-bottom:26px; }
.sidebar nav a{
  display:block; padding:10px 12px; border-radius:8px; color:var(--muted); font-size:.9rem; margin-bottom:2px; font-weight:500;
}
.sidebar nav a:hover{ background:var(--panel-2); color:var(--text); }
.sidebar nav a.active{ background:rgba(201,162,75,.14); color:var(--gold-light); }
.sidebar .nav-section{ font-family:var(--font-mono); font-size:.68rem; letter-spacing:.14em; color:#5c6a85; text-transform:uppercase; margin:20px 0 8px 12px;}
.sidebar .sidebar-footer{ margin-top:26px; padding-top:16px; border-top:1px solid var(--line);}
.sidebar .user-chip{ font-size:.82rem; color:var(--muted); margin-bottom:10px;}
.sidebar .user-chip strong{ color:var(--text); display:block;}

.main{ flex:1; padding:32px 40px; max-width:1180px; }
.page-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:26px; flex-wrap:wrap; gap:12px;}
.page-head p{ color:var(--muted); margin:4px 0 0;}

/* Cards / stats */
.stat-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:32px;}
.stat-card{ background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:20px;}
.stat-card .label{ font-family:var(--font-mono); font-size:.7rem; letter-spacing:.1em; color:var(--muted); text-transform:uppercase;}
.stat-card .value{ font-family:var(--font-display); font-size:1.7rem; margin-top:8px; color:var(--gold-light);}

.card{ background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:24px; margin-bottom:22px;}
.card h2{ font-size:1.1rem; margin-bottom:16px;}

/* Tables */
table{ width:100%; border-collapse:collapse; font-size:.9rem;}
th{ text-align:left; font-family:var(--font-mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; color:var(--muted); padding:10px 12px; border-bottom:1px solid var(--line);}
td{ padding:13px 12px; border-bottom:1px solid var(--line); vertical-align:middle;}
tr:last-child td{ border-bottom:none;}
.table-wrap{ overflow-x:auto; }
.empty-state{ text-align:center; padding:50px 20px; color:var(--muted);}
.empty-state h3{ color:var(--text); margin-bottom:6px;}

/* Badges */
.badge{ display:inline-block; padding:4px 10px; border-radius:999px; font-size:.76rem; font-weight:600;}
.badge-blue{ background:rgba(127,168,220,.15); color:var(--blue);}
.badge-gold{ background:rgba(201,162,75,.18); color:var(--gold-light);}
.badge-green{ background:rgba(111,207,151,.15); color:var(--green);}
.badge-red{ background:rgba(229,105,122,.15); color:#ff97a5;}

.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:18px;}
.text-right{ text-align:right;}
.mono{ font-family:var(--font-mono); }

@media (max-width:900px){
  .app{ flex-direction:column;}
  .sidebar{ width:100%; height:auto; position:static; display:flex; align-items:center; gap:16px; padding:14px 18px;}
  .sidebar nav{ display:flex; gap:6px; overflow-x:auto;}
  .sidebar .nav-section, .sidebar-footer{ display:none;}
  .main{ padding:22px;}
  .stat-row{ grid-template-columns:1fr 1fr;}
  .grid-2{ grid-template-columns:1fr;}
}

/* Print (invoices) */
@media print{
  .sidebar, .no-print{ display:none !important; }
  .app{ display:block; }
  .main{ padding:0; max-width:none;}
  body{ background:#fff; color:#111;}
  .invoice-box{ box-shadow:none; border:none;}
}