:root {
  color-scheme: dark;
  --bg: #061923;
  --panel: rgba(8, 35, 45, 0.9);
  --panel-border: rgba(133, 215, 213, 0.24);
  --text: #eefafa;
  --muted: #b9d6d8;
  --accent: #8be0d0;
  --accent-text: #08232d;
  --danger-bg: rgba(111, 49, 58, 0.48);
  --danger: #ffd5d8;
  --success-bg: rgba(30, 104, 93, 0.45);
  --success: #d5fff5;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 76% 6%, rgba(49, 156, 166, .25), transparent 32rem),
    radial-gradient(circle at 8% 94%, rgba(40, 117, 127, .18), transparent 28rem),
    linear-gradient(145deg, #03131c, var(--bg));
}
button, input { font: inherit; }
a { color: var(--accent); }
.auth-shell, .app-shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 58px 0 72px;
}
.brand { text-align: center; margin-bottom: 34px; }
.brand-logo {
  width: 112px;
  height: 112px;
  object-fit: contain;
  display: block;
  margin: 0 auto 12px;
}
.brand h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: .06em;
  line-height: 1;
}
.brand p { margin: 18px 0 0; color: var(--muted); font-size: 1.15rem; }
.panel {
  padding: clamp(24px, 5vw, 38px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .22);
  backdrop-filter: blur(14px);
}
.panel h2 { margin: 0 0 24px; font-size: 1.85rem; }
.form-grid { display: grid; gap: 20px; }
.field { display: grid; gap: 9px; }
.field label { font-weight: 750; color: #e8f7f7; }
.field input {
  width: 100%;
  min-height: 58px;
  border: 1px solid rgba(137, 205, 211, .3);
  border-radius: 14px;
  padding: 0 16px;
  color: var(--text);
  background: rgba(2, 19, 28, .72);
  outline: none;
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139, 224, 208, .14);
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
button, .button-link {
  min-height: 52px;
  border: 0;
  border-radius: 14px;
  padding: 0 20px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
button:disabled { cursor: wait; opacity: .65; }
.primary { color: var(--accent-text); background: var(--accent); }
.secondary { color: var(--text); background: rgba(75, 111, 126, .42); }
.danger { color: var(--danger); background: var(--danger-bg); }
.auth-links { display: flex; justify-content: flex-end; margin-top: 24px; }
.status {
  margin-top: 22px;
  padding: 15px 17px;
  border-radius: 14px;
  color: var(--muted);
  background: rgba(94, 137, 147, .16);
}
.status:empty { display: none; }
.status.error { color: var(--danger); background: var(--danger-bg); }
.status.success { color: var(--success); background: var(--success-bg); }
.hidden { display: none !important; }
.small-note { color: var(--muted); line-height: 1.6; margin: 18px 0 0; }
@media (max-width: 640px) {
  .auth-shell, .app-shell { width: min(100% - 20px, 920px); padding-top: 28px; }
  .brand-logo { width: 88px; height: 88px; }
  .brand h1 { font-size: 2.8rem; }
  .panel { border-radius: 20px; }
  .button-row > * { flex: 1 1 140px; }
  .auth-links { justify-content: center; }
}