:root {
  --bg: #eef2ff;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --sky: #0ea5e9;
  --indigo: #6366f1;
  --teal: #14b8a6;
  --font: "Plus Jakarta Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", monospace;
  --radius: 16px;
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.04);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #eef2ff 0%, #f0fdfa 45%, #f8fafc 100%);
  font-family: var(--font);
  color: var(--text);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.bg-orbs { position: fixed; inset: 0; pointer-events: none; overflow: hidden; }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.orb-a { width: 420px; height: 420px; background: #bae6fd; top: -120px; left: -80px; }
.orb-b { width: 360px; height: 360px; background: #c7d2fe; bottom: -100px; right: -60px; }
.orb-c { width: 280px; height: 280px; background: #99f6e4; top: 40%; left: 55%; opacity: 0.35; }

.auth-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.auth-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.auth-card h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}

.auth-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.field { display: block; margin-bottom: 1.25rem; }

.field span {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.field input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 0.9rem;
  font-family: var(--mono);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input:focus {
  outline: none;
  border-color: var(--sky);
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.15);
}

.btn-primary {
  width: 100%;
  padding: 0.9rem 1.25rem;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--sky), var(--indigo));
  color: #fff;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(99, 102, 241, 0.35); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.form-error {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: #dc2626;
  text-align: center;
}

.auth-foot {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.hidden { display: none !important; }