:root{
  --bg:#0f1115;
  --card:#181b21;
  --border:#2a2e38;
  --text:#e6e8ee;
  --muted:#9aa0b2;
  --primary:#3b82f6;
  --primary-hover:#2563eb;
  --error:#ef4444;
  --success:#22c55e;
  --radius:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
}
body.login-body{
  display:flex;
  align-items:center;
  justify-content:center;
}
/* login */
.login-wrap{width:100%;max-width:380px;padding:24px}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px 28px;
}
.card h1{font-size:1.15rem;font-weight:600;text-align:center;margin-bottom:22px;letter-spacing:.02em}
.field{margin-bottom:13px}
.field label{display:block;font-size:.72rem;color:var(--muted);margin-bottom:6px;letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.field input{
  width:100%;background:#0d0f13;border:1px solid #232733;border-radius:7px;color:var(--text);
  padding:9px 12px;font-size:.88rem;outline:none;transition:border-color .15s,box-shadow .15s,background .15s;
}
.field input::placeholder{color:#5a6273}
.field input:focus{border-color:var(--primary);background:#0f1115;box-shadow:0 0 0 3px rgba(59,130,246,.14)}
.field input[type="file"]{padding:7px;background:#0d0f13;cursor:pointer;font-size:.85rem}
.btn{
  width:100%;margin-top:8px;background:var(--primary);color:#fff;border:0;border-radius:8px;
  padding:11px;font-size:.95rem;font-weight:600;cursor:pointer;transition:background .15s;
  text-align:center;text-decoration:none;display:inline-block;
}
.btn:hover{background:var(--primary-hover)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-sm{padding:8px 14px;font-size:.85rem;width:auto}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.error{
  background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:#fca5a5;
  font-size:.82rem;padding:10px 12px;border-radius:8px;margin-bottom:16px;text-align:center;
}
.success{
  background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);color:#86efac;
  font-size:.82rem;padding:10px 12px;border-radius:8px;margin-bottom:16px;text-align:center;
}
/* admin layout */
.admin-top{
  background:var(--card);border-bottom:1px solid var(--border);
  padding:14px 24px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:10;
}
.admin-top strong{font-size:.95rem;letter-spacing:.02em}
.admin-top span{color:var(--muted);font-size:.85rem;margin-left:8px}
.nav{display:flex;gap:8px;align-items:center}
.nav a{
  color:var(--muted);text-decoration:none;font-size:.88rem;
  padding:7px 12px;border-radius:8px;border:1px solid transparent;transition:all .15s;
}
.nav a:hover{color:var(--text);border-color:var(--border)}
.nav a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.admin-wrap{max-width:900px;margin:32px auto;padding:0 24px}
.admin-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;
}
.admin-card h1{font-size:1.1rem;font-weight:600}
.admin-card p{color:var(--muted);font-size:.9rem;line-height:1.5}
.muted{color:var(--muted);font-size:.85rem}
/* files list */
.file-list{margin-top:18px;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.file-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;border-bottom:1px solid var(--border);gap:12px;
}
.file-row:last-child{border-bottom:0}
.file-row:nth-child(even){background:rgba(255,255,255,.02)}
.file-name{font-size:.9rem;word-break:break-all}
.file-meta{font-size:.75rem;color:var(--muted)}
.empty{padding:32px;text-align:center;color:var(--muted);font-size:.9rem}
/* input com icone visualizar senha — compacto e estilizado */
.input-wrap{position:relative;display:flex;align-items:center}
.input-wrap input{padding-right:40px}
.toggle-pass{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  background:transparent;border:0;color:#6b7288;cursor:pointer;
  width:30px;height:30px;display:flex;align-items:center;justify-content:center;
  border-radius:7px;transition:all .15s;line-height:0;
}
.toggle-pass:hover{color:var(--text);background:rgba(255,255,255,.07)}
.toggle-pass:active{transform:translateY(-50%) scale(.96)}
.toggle-pass:focus-visible{outline:2px solid var(--primary);outline-offset:1px}
.toggle-pass svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;display:block}
/* grid compacto para senhas lado a lado */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:620px){.grid-2{grid-template-columns:1fr}}
/* campo ID com botão gerar alinhado */
.id-row{display:flex;gap:8px;align-items:center}
.id-row input{flex:1}
.id-row .btn-sm{white-space:nowrap;padding:9px 12px;border-radius:7px;font-size:.82rem}
/* delete */
.btn-danger{background:transparent;border:1px solid rgba(239,68,68,.35);color:#fca5a5}
.btn-danger:hover{background:rgba(239,68,68,.12);border-color:rgba(239,68,68,.55);color:#fecaca}
.file-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.share-form{display:flex;gap:6px;align-items:center;margin:0}
.share-input{width:112px;background:#0d0f13;border:1px solid #232733;border-radius:7px;color:var(--text);padding:7px 8px;font-size:.82rem;outline:none;transition:border-color .15s,box-shadow .15s;font-family:ui-monospace,Menlo,Consolas,monospace}
.share-input::placeholder{color:#5a6273}
.share-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,130,246,.14)}
@media(max-width:760px){.file-row{flex-direction:column;align-items:flex-start}.file-actions{width:100%;justify-content:flex-start}.share-input{flex:1;min-width:0;width:auto}}