:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --panel-2: #1a1f26;
  --line: #262d36;
  --text: #e6eaf0;
  --muted: #8b96a5;
  --bull: #2ecc8f;
  --bear: #f0616d;
  --neutral: #6b7684;
  --accent: #5b9cf8;
  --warn: #f5b544;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.center { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card {
  width: 100%; max-width: 380px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 14px; padding: 28px;
}
.brand { font-size: 20px; font-weight: 650; letter-spacing: -0.02em; margin: 0 0 4px; }
.sub { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
label { display: block; font-size: 12px; color: var(--muted); margin: 14px 0 6px; }
input {
  width: 100%; font: inherit; padding: 10px 12px; border-radius: 9px;
  border: 1px solid var(--line); background: var(--bg); color: var(--text); outline: none;
}
input:focus { border-color: var(--accent); }
button {
  width: 100%; margin-top: 20px; font: inherit; font-weight: 600; cursor: pointer;
  padding: 10px 14px; border-radius: 9px; border: 1px solid var(--accent);
  background: var(--accent); color: #06101f;
}
button:hover:not(:disabled) { background: #74adfa; }
button:disabled { opacity: .5; cursor: not-allowed; }
.msg {
  display: none; margin-top: 16px; padding: 10px 12px; border-radius: 8px; font-size: 13px;
}
.msg.show { display: block; }
.msg.err { background: rgba(240,97,109,.1); border: 1px solid rgba(240,97,109,.35); color: #f79aa2; }
.msg.ok { background: rgba(46,204,143,.1); border: 1px solid rgba(46,204,143,.3); color: var(--bull); }
.alt { margin-top: 18px; text-align: center; font-size: 13px; color: var(--muted); }
.alt a { color: var(--accent); text-decoration: none; }
.alt a:hover { text-decoration: underline; }
.hint { font-size: 11.5px; color: var(--muted); margin-top: 6px; }