:root {
  --bg: #0a0c12; --panel: #131722; --panel2: #1a1f2e; --border: #232838;
  --text: #eef1f7; --muted: #8b93a7; --accent: #ff8a3d; --accent2: #4f8cff;
  --ok: #2ecc9c; --bad: #ff5d6c;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text); min-height: 100vh;
  display: flex; align-items: center; justify-content: center; padding: 1.5rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(255,138,61,.1), transparent),
    radial-gradient(600px 350px at 90% 20%, rgba(79,140,255,.1), transparent);
}
.box { width: 100%; max-width: 380px; }
.logo { text-align: center; font-weight: 800; font-size: 1.15rem; margin-bottom: 1.6rem; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 1.8rem; }
.card h1 { font-size: 1.3rem; margin: 0 0 .3rem; }
.card p.sub { color: var(--muted); font-size: .85rem; margin: 0 0 1.4rem; }
label { font-size: .82rem; color: var(--muted); display: block; margin-bottom: .3rem; }
input {
  width: 100%; padding: .7rem .8rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel2); color: var(--text); font-size: .92rem; margin-bottom: 1rem;
}
button.submit {
  width: 100%; background: var(--accent); color: #1a0e02; border: none; border-radius: 8px;
  padding: .8rem; font-weight: 700; font-size: .95rem; cursor: pointer; margin-top: .3rem;
}
button.submit:disabled { opacity: .6; cursor: not-allowed; }
.err { background: rgba(255,93,108,.1); border: 1px solid rgba(255,93,108,.3); color: var(--bad);
  padding: .6rem .8rem; border-radius: 8px; font-size: .82rem; margin-bottom: 1rem; display: none; }
.foot { text-align: center; margin-top: 1.2rem; font-size: .85rem; color: var(--muted); }
.foot a { color: var(--accent2); text-decoration: none; font-weight: 600; }