:root {
  --bg: #0d1321;
  --panel: rgba(17, 25, 43, 0.92);
  --line: rgba(148, 163, 184, 0.18);
  --text: #e5eefc;
  --muted: #92a3c0;
  --accent: #37b7a5;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --shadow: 0 22px 70px rgba(2, 8, 23, 0.42);
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
[hidden] { display: none !important; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(55, 183, 165, 0.18), transparent 24%),
    radial-gradient(circle at 85% 12%, rgba(56, 189, 248, 0.1), transparent 18%),
    linear-gradient(180deg, #0b1020 0%, #0d1321 42%, #0a1120 100%);
}

button, input { font: inherit; }

.auth-shell {
  min-height: 100vh;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: center;
  padding: 32px 0;
}

.auth-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  padding: 28px;
}

.auth-panel--hero { display: grid; gap: 16px; }
.auth-panel--form { display: grid; gap: 18px; }

.brand-mark {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), #6ee7b7);
  color: #07111d;
  font-family: "Manrope", sans-serif;
  font-size: 1.7rem;
  font-weight: 800;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1, h2 { margin: 0; font-family: "Manrope", sans-serif; }
h1 { font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1.02; max-width: 12ch; }
h2 { font-size: 1.25rem; }

.auth-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  max-width: 56ch;
}

.auth-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.auth-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(55, 183, 165, 0.12);
  color: #b8fff5;
  font-size: 0.8rem;
  font-weight: 700;
}

.auth-form { display: grid; gap: 12px; }

label {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

input {
  width: 100%;
  padding: 12px 13px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(8, 14, 26, 0.78);
  color: var(--text);
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(55, 183, 165, 0.14);
}

.button {
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 11px 14px;
  font-weight: 700;
  cursor: pointer;
}

.button--primary {
  background: linear-gradient(135deg, var(--accent), #5fd3c5);
  color: #05111d;
}

.auth-banner,
.auth-feedback {
  min-height: 1.2rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.auth-banner {
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  background: rgba(245, 158, 11, 0.12);
  color: #fcd34d;
}

.auth-feedback.is-error { color: #fecaca; }
.auth-feedback.is-success { color: #a7f3d0; }

@media (max-width: 980px) {
  .auth-shell {
    grid-template-columns: 1fr;
    padding: 20px 0;
  }

  h1 { max-width: none; }
}