/* SkyHUD web — matches iOS AuthDesign tokens */
:root {
  --color-bg: #000000;
  --color-surface: #0a0a0a;
  --color-accent: #00e5ff;
  --color-accent-dim: rgba(0, 229, 255, 0.14);
  --color-text: #ffffff;
  --color-subtitle: #888888;
  --color-border: rgba(255, 255, 255, 0.12);
  --color-button-secondary: rgba(255, 255, 255, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --max-width: 32rem;
  --line-height-body: 1.55;
  --line-height-tight: 1.2;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-lg);
}

.page {
  width: 100%;
  max-width: var(--max-width);
}

.card {
  position: relative;
  padding: var(--space-2xl) var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
}

.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    ellipse 80% 50% at 50% -20%,
    var(--color-accent-dim),
    transparent 70%
  );
  opacity: 0.9;
}

.card-inner {
  position: relative;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.eyebrow {
  margin: 0 0 var(--space-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

h1 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.75rem, 5vw, 2.125rem);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  color: var(--color-text);
}

.secondary {
  margin: 0 0 var(--space-xl);
  color: var(--color-subtitle);
  font-size: 0.9375rem;
}

.fallback {
  margin: 0 0 var(--space-xl);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--color-button-secondary);
  color: var(--color-subtitle);
  font-size: 0.875rem;
}

.success-icon {
  margin: 0 0 var(--space-lg);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent);
}

.actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.5rem;
  padding: 0 var(--space-lg);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-primary {
  color: var(--color-bg);
  background: var(--color-accent);
  border: none;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.18);
}

.btn-primary:hover {
  background: #33ebff;
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.28);
}

.btn-primary:active {
  transform: scale(0.99);
}

.btn-secondary {
  color: var(--color-text);
  background: var(--color-button-secondary);
  border: 1px solid var(--color-border);
}

.site-footer {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-subtitle);
  border-top: 1px solid var(--color-border);
}

.site-footer p {
  margin: 0 0 var(--space-sm);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.site-footer a {
  color: var(--color-subtitle);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
}

.site-footer a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Home + placeholder pages */
.page-home h1 {
  margin-bottom: var(--space-sm);
}

.page-home .secondary {
  margin-bottom: var(--space-xl);
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  padding: 0 var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-button-secondary);
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover {
  color: var(--color-accent);
  border-color: rgba(0, 229, 255, 0.35);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.page-placeholder .secondary {
  margin-bottom: var(--space-lg);
}

.page-error {
  text-align: center;
}

.page-error h1 {
  font-size: clamp(3rem, 12vw, 4.5rem);
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (min-width: 480px) {
  .card {
    padding: var(--space-3xl) var(--space-2xl);
  }
}