:root {
  --bg:#070b14;
  --bg-soft:#0f172a;
  --panel:#111827;
  --panel-2:#0b1220;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --primary:#2563eb;
  --primary-2:#1d4ed8;
  --border:#1f2937;
  --danger:#dc2626;
}

*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:linear-gradient(180deg,#060a12,#0b1322 30%,#070b14);color:var(--text)}
.app-shell{min-height:100vh}

.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:rgba(7,11,20,.88);backdrop-filter: blur(10px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px}
.brand-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(45deg,#3b82f6,#60a5fa)}
.top-actions{display:flex;gap:10px}
.nav-link{color:#bfdbfe;text-decoration:none;padding:8px 12px;border-radius:10px;border:1px solid #1e3a8a;background:#0f1b3a}
.nav-link:hover{background:#132653}

.container{max-width:1280px;margin:24px auto;padding:0 16px 32px}

.auth-wrap{display:grid;place-items:center;min-height:70vh}
.auth-card{width:min(480px,100%);background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:24px;box-shadow:0 20px 45px rgba(0,0,0,.35)}

h1,h2,h3{margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 14px}
.meta{color:var(--muted);font-size:12px}

.page-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px}
.mode{padding:8px 12px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--border)}
.mode-admin{background:#0b2447;color:#93c5fd}
.mode-read{background:#1f2937;color:#d1d5db}

.panel,.mail-card{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--border);border-radius:16px;padding:16px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}
.mail-card-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.chip{font-size:12px;padding:4px 8px;border-radius:999px;background:#172554;color:#bfdbfe;border:1px solid #1e3a8a}

.alert{background:#3f1016;border:1px solid #7f1d1d;color:#fecaca;padding:10px 12px;border-radius:12px;margin:10px 0}

dl{display:grid;grid-template-columns:110px 1fr;gap:6px 8px;margin:12px 0}
dt{color:var(--muted);font-size:12px} dd{margin:0}

.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.actions{margin-top:10px}

.stack{display:flex;flex-direction:column;gap:10px}
.stack.compact{margin-top:10px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}

label{font-size:13px;color:#cbd5e1}
input,textarea,button,summary{font:inherit}
input,textarea{width:100%;background:#0b1220;color:var(--text);border:1px solid var(--border);border-radius:12px;padding:10px 12px}
input:focus,textarea:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.22)}

.btn,button{border:none;border-radius:12px;padding:10px 14px;background:linear-gradient(180deg,var(--primary),var(--primary-2));color:#fff;cursor:pointer}
.btn.ghost{background:#0f1b3a;border:1px solid #1e3a8a;color:#bfdbfe;text-decoration:none;display:inline-flex;align-items:center}
.btn.danger{background:linear-gradient(180deg,#dc2626,#b91c1c)}
.btn.small{padding:6px 10px;font-size:12px}

details{margin-top:10px}
summary{cursor:pointer;color:#93c5fd}
.check{display:flex;align-items:center;gap:8px}
.check input{width:auto}

.mail-layout{display:grid;grid-template-columns:360px 1fr;gap:14px;margin-bottom:14px}
.mail-list{max-height:620px;overflow:auto}
.mail-item{padding:10px;border-radius:10px;border:1px solid transparent;background:#0d1525;margin-bottom:8px}
.mail-item:hover{border-color:#1e3a8a}
.mail-subject{color:#dbeafe;text-decoration:none;font-weight:600;display:block;margin-bottom:6px}
pre{white-space:pre-wrap;line-height:1.45}

@media (max-width: 980px){
  .mail-layout{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
}


.tabs{display:flex;gap:10px;margin:0 0 14px}
.tab{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid #1e3a8a;background:#0f1b3a;color:#bfdbfe;text-decoration:none;font-weight:600}
.tab span{font-size:12px;padding:2px 8px;border-radius:999px;background:#172554;color:#dbeafe}
.tab.active{background:linear-gradient(180deg,#1e3a8a,#1d4ed8);border-color:#3b82f6;color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.28)}

.mail-card{transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.mail-card:hover{transform:translateY(-2px);border-color:#1d4ed8;box-shadow:0 16px 28px rgba(2,6,23,.35)}
.panel{box-shadow:0 10px 24px rgba(2,6,23,.28)}

hr{border:none;border-top:1px solid var(--border);margin:12px 0}
article{line-height:1.55}