:root {
  --bg1: #0f172a;   /* slate-900 */
  --bg2: #1e293b;   /* slate-800 */
  --card: #0b1020;  /* deep navy */
  --text: #e5e7eb;  /* slate-200 */
  --muted: #a3a3a3; /* gray-400 */
  --accent: #60a5fa;/* blue-400 */
  --accent-hover: #3b82f6; /* blue-500 */
  --danger: #ef4444;
  --ring: rgba(96,165,250,0.5);
  --shadow: 0 10px 25px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text); background: radial-gradient(1200px 800px at 80% -10%, #1b2a55, transparent 60%),
                         linear-gradient(160deg, var(--bg1), var(--bg2));
}

.auth-wrap {
  min-height: 100%; display: grid; place-items: center; padding: 32px 16px;
}

.card {
  width: 100%; max-width: 440px; background: rgba(11,16,32,.9);
  border: 1px solid rgba(255,255,255,.06); border-radius: 16px; box-shadow: var(--shadow);
  backdrop-filter: blur(6px); padding: 28px;
}

.brand {
  display:flex; align-items:center; gap:12px; margin-bottom: 18px;
}
.brand .logo {
  width: 42px; height: 42px; border-radius: 10px;
  object-fit: contain; display: block; background: none; box-shadow: none;
}
.brand h1 { font-size: 1.25rem; margin: 0; letter-spacing: .3px; }

.subtitle { margin: 6px 0 18px; color: var(--muted); font-size: .95rem; }

.field { margin-bottom: 14px; }
.label { display:block; margin: 0 0 6px; color: var(--muted); font-size: .9rem; }

.input {
  width:100%; background: #0a0f20; border: 1px solid rgba(255,255,255,.08);
  color: var(--text); border-radius: 10px; padding: 12px 14px; outline: none;
  transition: border .15s, box-shadow .15s, transform .02s;
}
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ring);
}

.pw-wrap { position: relative; }
.toggle {
  position:absolute; right:10px; top:50%; transform: translateY(-50%);
  font-size:.85rem; color: var(--muted); background:transparent; border:0; cursor:pointer;
}
.toggle:hover { color: var(--text); }

.actions { display:flex; align-items:center; justify-content: space-between; margin-top: 6px; }
.help { color: var(--muted); font-size:.85rem; text-decoration:none; }
.help:hover { text-decoration: underline; }

.btn {
  appearance: none; border:0; cursor:pointer; width:100%;
  background: linear-gradient(180deg, var(--accent), var(--accent-hover));
  color: white; border-radius: 10px; padding: 12px 16px; font-weight: 600; letter-spacing:.3px;
  box-shadow: 0 10px 20px rgba(59,130,246,.25); transition: transform .04s ease-in-out, filter .15s;
}
.btn:hover { filter: brightness(1.02); }
.btn:active { transform: translateY(1px); }

.err {
  margin: 8px 0 14px; padding: 10px 12px; border-radius: 10px;
  background: rgba(239,68,68,.1); border:1px solid rgba(239,68,68,.4); color: #fecaca;
  font-size: .92rem;
}

.footer {
  text-align:center; color: var(--muted); font-size:.8rem; margin-top: 16px;
}