:root{
  --bg:#06090d;
  --bg-2:#0b1117;
  --surface:#0f1620;
  --surface-2:#141e2a;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#eaf2fb;
  --muted:#8a99ad;
  --accent:#6ee7ff;
  --accent-2:#a7f3d0;
  --accent-3:#f59e0b;
  --danger:#ff6b6b;
  --success:#a7f3d0;
  --grad: linear-gradient(135deg,#6ee7ff 0%,#a7f3d0 50%,#f0f9ff 100%);
  --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{
  background:var(--bg);color:var(--text);
  font-family:'Sora',-apple-system,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
body{
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(110,231,255,.08),transparent 60%),
    radial-gradient(900px 500px at 0% 100%,rgba(167,243,208,.05),transparent 60%),
    var(--bg);
  min-height:100vh;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

/* ===== AUTH PAGES (login/register) ===== */
.auth-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  padding:40px 20px;position:relative;
}
.auth-wrap::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  pointer-events:none;
}
.auth-card{
  position:relative;width:100%;max-width:460px;
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line-strong);
  border-radius:24px;padding:48px 40px;
  box-shadow:0 30px 80px rgba(0,0,0,.5),0 0 0 1px rgba(110,231,255,.08);
}
.auth-brand{display:flex;align-items:center;gap:12px;justify-content:center;margin-bottom:32px}
.auth-logo{
  width:44px;height:44px;border-radius:12px;
  background:var(--grad);display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(110,231,255,.3);
}
.auth-logo svg{width:24px;height:24px;color:#06121a}
.auth-brand-name{font-family:'Fraunces',Georgia,serif;font-size:22px;font-weight:600;letter-spacing:-.5px}
.auth-brand-name b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.auth-card h1{
  font-family:'Fraunces',Georgia,serif;font-size:28px;font-weight:500;
  letter-spacing:-.5px;text-align:center;margin-bottom:8px;
}
.auth-card .subtitle{text-align:center;color:var(--muted);font-size:14px;margin-bottom:32px}

/* Form */
.field{margin-bottom:18px}
.field label{
  display:block;font-size:12px;color:var(--muted);
  margin-bottom:8px;text-transform:uppercase;letter-spacing:1px;
  font-family:'JetBrains Mono',monospace;
}
.field input, .field select, .field textarea{
  width:100%;padding:14px 16px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:12px;color:var(--text);
  font-family:inherit;font-size:14px;
  transition:all .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none;border-color:var(--accent);
  background:rgba(110,231,255,.05);
  box-shadow:0 0 0 3px rgba(110,231,255,.1);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:480px){.field-row{grid-template-columns:1fr}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 24px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  transition:all .25s;text-decoration:none;
}
.btn-primary{
  background:var(--grad);color:#06121a;
  box-shadow:0 8px 24px rgba(110,231,255,.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(110,231,255,.35);text-decoration:none}
.btn-ghost{color:var(--text);border-color:var(--line-strong);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.05);text-decoration:none}
.btn-danger{background:var(--danger);color:#fff}
.btn-block{width:100%}
.btn-sm{padding:8px 16px;font-size:13px}

.auth-footer{
  text-align:center;margin-top:24px;padding-top:24px;
  border-top:1px solid var(--line);font-size:14px;color:var(--muted);
}
.auth-footer a{color:var(--accent);font-weight:500}

/* Alert */
.alert{
  padding:14px 18px;border-radius:12px;font-size:14px;
  margin-bottom:24px;display:flex;align-items:center;gap:10px;
}
.alert-error{background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);color:#ffb4b4}
.alert-success{background:rgba(167,243,208,.1);border:1px solid rgba(167,243,208,.3);color:var(--accent-2)}
.alert-info{background:rgba(110,231,255,.08);border:1px solid rgba(110,231,255,.25);color:var(--accent)}

/* ===== LAYOUT APP (sidebar + content) ===== */
.app{display:flex;min-height:100vh}
.sidebar{
  width:260px;background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%);
  border-right:1px solid var(--line);
  padding:24px 16px;position:fixed;height:100vh;overflow-y:auto;
  display:flex;flex-direction:column;
}
.sidebar-brand{
  display:flex;align-items:center;gap:10px;padding:0 12px 24px;
  border-bottom:1px solid var(--line);margin-bottom:20px;
}
.sidebar-brand .auth-logo{width:36px;height:36px}
.sidebar-brand .auth-logo svg{width:18px;height:18px}
.sidebar-brand-name{font-family:'Fraunces',Georgia,serif;font-size:18px;font-weight:600}
.sidebar-brand-name b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}
.sidebar nav a{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:10px;
  color:var(--muted);font-size:14px;font-weight:500;
  transition:all .2s;
}
.sidebar nav a:hover{background:rgba(255,255,255,.04);color:var(--text);text-decoration:none}
.sidebar nav a.active{
  background:rgba(110,231,255,.1);color:var(--accent);
  border:1px solid rgba(110,231,255,.2);
}
.sidebar nav a svg{width:18px;height:18px;flex-shrink:0}
.sidebar-foot{padding-top:20px;border-top:1px solid var(--line)}
.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;background:rgba(255,255,255,.02);margin-bottom:8px}
.sidebar-user .av{width:36px;height:36px;border-radius:10px;background:var(--grad);display:grid;place-items:center;font-weight:700;color:#06121a;font-size:13px}
.sidebar-user .info{flex:1;min-width:0}
.sidebar-user .name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-user .role{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}

.content{flex:1;margin-left:260px;padding:32px 40px}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:transform .3s;z-index:100}
  .sidebar.open{transform:translateX(0)}
  .content{margin-left:0;padding:24px}
}

.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;flex-wrap:wrap;gap:16px}
.page-head h1{font-family:'Fraunces',Georgia,serif;font-size:32px;font-weight:500;letter-spacing:-.5px}
.page-head .crumbs{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1.5px;font-family:'JetBrains Mono',monospace;margin-bottom:6px}

/* KPI cards */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:32px}
.kpi-card{
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line);border-radius:18px;padding:24px;
  position:relative;overflow:hidden;transition:all .3s;
}
.kpi-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.kpi-card .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:1.5px;font-family:'JetBrains Mono',monospace;margin-bottom:12px}
.kpi-card .value{font-family:'Fraunces',Georgia,serif;font-size:38px;font-weight:600;letter-spacing:-1px;line-height:1}
.kpi-card .value small{font-size:14px;color:var(--accent-2);font-family:'JetBrains Mono',monospace;margin-left:6px}
.kpi-card .trend{font-size:12px;color:var(--muted);margin-top:8px}

/* Card */
.card{
  background:linear-gradient(180deg,var(--surface) 0%,var(--surface-2) 100%);
  border:1px solid var(--line);border-radius:18px;padding:28px;margin-bottom:24px;
}
.card h2{font-family:'Fraunces',Georgia,serif;font-size:22px;font-weight:500;margin-bottom:20px;letter-spacing:-.3px}

/* Table */
.table-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--line)}
table.dt{width:100%;border-collapse:collapse;font-size:14px}
table.dt th{
  text-align:left;padding:14px 16px;background:rgba(255,255,255,.03);
  font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);
  font-family:'JetBrains Mono',monospace;font-weight:500;
  border-bottom:1px solid var(--line);
}
table.dt td{padding:14px 16px;border-bottom:1px solid var(--line)}
table.dt tr:last-child td{border-bottom:none}
table.dt tr:hover td{background:rgba(255,255,255,.02)}

.badge{display:inline-block;padding:4px 10px;border-radius:6px;font-size:11px;font-family:'JetBrains Mono',monospace;font-weight:500}
.badge-paid{background:rgba(167,243,208,.12);color:var(--accent-2)}
.badge-pending{background:rgba(245,158,11,.12);color:var(--accent-3)}
.badge-sent{background:rgba(110,231,255,.12);color:var(--accent)}
.badge-draft{background:rgba(255,255,255,.06);color:var(--muted)}
.badge-refused{background:rgba(255,107,107,.12);color:var(--danger)}