@layer base {
  html, body {
    margin: 0;
    padding: 0;
  }

  body {
    overscroll-behavior: none;
    font-family: "Hanken Grotesk", sans-serif;
    background: #10131a;
    color: #e1e2ec;
  }

  main > :first-child {
    margin-top: 0 !important;
  }

  main > :last-child {
    margin-bottom: 0 !important;
  }
}

:root {
  --background: #10131a;
  --surface: #10131a;
  --surface-container: #1d1f27;
  --surface-container-high: #272a32;
  --surface-container-low: #191b23;
  --surface-container-lowest: #0b0e15;
  --primary: #4cd7f6;
  --primary-container: #06b6d4;
  --secondary: #c0c1ff;
  --tertiary: #adc6ff;
  --on-surface: #e1e2ec;
  --on-surface-variant: #bcc9cd;
  --on-primary: #003640;
  --on-primary-container: #00424f;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--background);
}

::selection {
  background: rgba(76, 215, 246, 0.35);
}

::-webkit-scrollbar {
  display: none;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(76, 215, 246, 0.18), rgba(192, 193, 255, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 30px rgba(6, 182, 212, 0.18);
}

.brand-mark span {
  color: var(--primary);
  font-size: 1.35rem;
}

.glass-panel {
  backdrop-filter: blur(10px);
}

.logo-text {
  letter-spacing: -0.06em;
}

.hero-glow {
  position: absolute;
  inset: 0 auto auto 50%;
  width: 1000px;
  height: 480px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom, rgba(76, 215, 246, 0.18), rgba(192, 193, 255, 0.08), transparent);
  filter: blur(48px);
  pointer-events: none;
  z-index: -1;
}

.auth-page {
  display: flex;
  flex-direction: column;
}

.auth-main {
  display: grid;
  flex: 1;
  min-height: min(680px, calc(100vh - 145px));
  place-items: center;
  padding: 4rem 1rem;
  background: radial-gradient(circle at 50% 0, rgba(76, 215, 246, 0.12), transparent 34rem);
}

.auth-panel {
  width: min(100%, 30rem);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.auth-icon {
  display: inline-flex;
  width: 4rem;
  height: 4rem;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(76, 215, 246, 0.2);
  border-radius: 1.25rem;
  color: var(--primary);
  background: rgba(76, 215, 246, 0.1);
  box-shadow: 0 12px 30px rgba(6, 182, 212, 0.12);
}

.auth-eyebrow {
  margin-top: 1.5rem;
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.auth-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

.auth-message-success,
.auth-message-error {
  padding: 1rem;
  border: 1px solid transparent;
  border-radius: 1rem;
}

.auth-message-success {
  border-color: rgba(76, 215, 246, 0.25);
  color: var(--primary);
  background: rgba(76, 215, 246, 0.08);
}

.auth-message-error {
  border-color: rgba(255, 180, 171, 0.25);
  color: var(--error);
  background: rgba(147, 0, 10, 0.16);
}

.auth-spinner {
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
  border: 2px solid rgba(76, 215, 246, 0.25);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: auth-spin 0.8s linear infinite;
}

.auth-field {
  text-align: left;
}

.auth-field label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--on-surface);
  font-size: 0.875rem;
  font-weight: 600;
}

.auth-field input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.75rem;
  padding: 0.85rem 1rem;
  color: var(--on-surface);
  background: var(--surface-container);
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.auth-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(76, 215, 246, 0.14);
}

.auth-button {
  display: inline-flex;
  width: 100%;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 0;
  border-radius: 999px;
  color: var(--on-primary);
  background: linear-gradient(90deg, var(--primary-container), var(--primary));
  font-weight: 700;
  transition: filter 160ms ease, opacity 160ms ease;
}

.auth-button:hover:not(:disabled) {
  filter: brightness(1.1);
}

.auth-button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.auth-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--primary);
  font-weight: 600;
}

.auth-link:hover {
  text-decoration: underline;
}

@keyframes auth-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
  .mobile-stack {
    width: 100%;
  }
}