:root {
  color-scheme: dark;
  --auth-bg: #03101d;
  --auth-bg-deep: #000914;
  --auth-surface: #071e32;
  --auth-surface-raised: #0a2942;
  --auth-text: #f4fbff;
  --auth-text-secondary: #b6c9d9;
  --auth-muted: #7f9bb1;
  --auth-line: rgba(139, 210, 255, 0.2);
  --auth-line-strong: rgba(139, 210, 255, 0.42);
  --auth-accent: #8bd2ff;
  --auth-accent-ink: #06141e;
  --auth-danger: #ffc0c8;
  --auth-success: #a7f5cf;
  --auth-focus: #d8f1ff;
  --auth-font: Manrope, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-family: var(--auth-font);
  font-synthesis: none;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { min-width: 320px; background: var(--auth-bg-deep); }

body {
  min-width: 320px;
  margin: 0;
  color: var(--auth-text);
  background:
    radial-gradient(circle at 50% 10%, rgba(20, 118, 214, 0.2), transparent 35rem),
    linear-gradient(155deg, var(--auth-bg) 0%, var(--auth-bg-deep) 65%);
  font-size: 1rem;
  line-height: 1.5;
}

button, input { font: inherit; }

button, a { touch-action: manipulation; }

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--auth-accent-ink);
  background: var(--auth-focus);
  border-radius: 0.4rem;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.pro-auth-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  width: 100%;
  padding: max(1rem, env(safe-area-inset-top)) clamp(1rem, 3vw, 3rem);
}

.pro-auth-header nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0.5rem; color: var(--auth-text-secondary); text-underline-offset: 0.2em; }
.pro-auth-brand .pilotcb-logo { width: 40px; height: 40px; object-fit: contain; }

.pro-auth-brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 0.6rem;
  color: var(--auth-text);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.pro-auth-brand strong {
  padding: 0.22rem 0.42rem;
  color: var(--auth-accent-ink);
  border-radius: 0.2rem;
  background: var(--auth-accent);
  font-size: 0.66rem;
}

.sign-in-viewport {
  display: grid;
  min-height: 100vh;
  min-height: 100dvh;
  place-items: center;
  padding: 6rem 1rem 3rem;
}

.sign-in-card {
  width: min(29rem, 100%);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--auth-line);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(10, 41, 66, 0.96), rgba(4, 19, 32, 0.98));
  box-shadow: 0 2rem 5rem rgba(0, 5, 12, 0.46);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--auth-accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.14em;
}

h1, h2, h3 { text-wrap: balance; }

h1 {
  margin: 0;
  font-size: clamp(1.85rem, 5vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.sign-in-intro {
  margin: 0.7rem 0 1.75rem;
  color: var(--auth-text-secondary);
}

.auth-form { display: grid; gap: 1rem; }

.field { display: grid; gap: 0.45rem; min-width: 0; }

.field label { font-size: 0.88rem; font-weight: 720; }

.field input {
  min-width: 0;
  width: 100%;
  min-height: 48px;
  padding: 0.72rem 0.85rem;
  color: var(--auth-text);
  border: 1px solid var(--auth-line-strong);
  border-radius: 0.5rem;
  outline: 0;
  background: rgba(1, 10, 18, 0.72);
}

.field input:hover { border-color: rgba(139, 210, 255, 0.65); }

.field input:focus-visible {
  border-color: var(--auth-focus);
  box-shadow: 0 0 0 3px rgba(139, 210, 255, 0.23);
}

.field-hint {
  margin: 0;
  color: var(--auth-muted);
  font-size: 0.78rem;
}

.password-field { position: relative; }

.password-field input { padding-right: 4.8rem; }

.password-toggle {
  position: absolute;
  right: 0.25rem;
  top: 50%;
  min-width: 4.1rem;
  min-height: 44px;
  padding: 0.4rem 0.65rem;
  color: var(--auth-accent);
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  cursor: pointer;
  transform: translateY(-50%);
}

.primary-action, .secondary-action, .provider-action, .text-action {
  min-height: 48px;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, opacity 180ms ease;
}

.primary-action {
  color: var(--auth-accent-ink);
  border: 1px solid var(--auth-accent);
  background: var(--auth-accent);
  font-weight: 800;
}

.primary-action:hover { background: #b9e7ff; }

.secondary-action, .provider-action {
  color: var(--auth-text);
  border: 1px solid var(--auth-line-strong);
  background: rgba(11, 51, 82, 0.46);
  font-weight: 700;
}

.secondary-action:hover, .provider-action:hover { border-color: var(--auth-accent); background: var(--auth-surface-raised); }

.provider-actions { display: grid; gap: 0.65rem; }

.text-action {
  width: 100%;
  margin-top: 0.75rem;
  color: var(--auth-accent);
  border: 0;
  background: transparent;
  font-weight: 700;
}

.text-action:hover { color: var(--auth-text); }

button:focus-visible, a:focus-visible {
  outline: 3px solid var(--auth-focus);
  outline-offset: 3px;
}

button:disabled { cursor: wait; opacity: 0.52; }

.auth-divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.8rem;
  margin: 1.35rem 0;
  color: var(--auth-muted);
  font-size: 0.75rem;
}

.auth-divider::before, .auth-divider::after { height: 1px; content: ""; background: var(--auth-line); }

.auth-message {
  margin: 0 0 1rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid currentColor;
  border-radius: 0.45rem;
  font-size: 0.86rem;
}

.auth-message--error { color: var(--auth-danger); background: rgba(113, 25, 36, 0.22); }
.auth-message--status { color: var(--auth-success); background: rgba(21, 101, 69, 0.2); }

.otp-panel {
  margin-top: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--auth-line);
}

.security-note {
  margin: 1.35rem 0 0;
  color: var(--auth-muted);
  font-size: 0.75rem;
  line-height: 1.55;
}

.account-panel {
  display: grid;
  gap: 1rem;
}

.account-panel[hidden] { display: none; }

.account-panel h2,
.account-panel p { margin: 0; }

.account-summary { color: var(--auth-text); font-weight: 800; }
.account-detail, .account-identity { color: var(--auth-text-secondary); overflow-wrap: anywhere; }
.account-actions { display: grid; gap: 0.65rem; }
.auth-mode-link { margin: 1rem 0 0; color: var(--auth-text-secondary); font-size: 0.9rem; }
.auth-mode-link a { display: inline-flex; align-items: center; min-height: 44px; color: var(--auth-accent); text-underline-offset: 0.2em; }
.session-loading { display: grid; min-height: 9rem; align-content: center; gap: 1rem; color: var(--auth-text-secondary); }
.session-loading p { margin: 0; }
.confidentiality-note, .account-security { padding-top: 1rem; border-top: 1px solid var(--auth-line); }
.confidentiality-note h3, .account-security h3 { margin: 0 0 0.6rem; font-size: 1rem; }
.confidentiality-note p { color: var(--auth-text-secondary); font-size: 0.9rem; }
.checkbox-label { display: flex; align-items: flex-start; gap: 0.75rem; min-height: 48px; padding: 0.5rem 0; cursor: pointer; font-size: 0.9rem; }
.checkbox-label input { flex: 0 0 20px; width: 20px; height: 20px; margin: 0.15rem 0 0; accent-color: var(--auth-accent); }
.checkbox-label input:focus-visible { outline: 3px solid var(--auth-focus); outline-offset: 3px; }
.field-error { margin: 0; color: var(--auth-danger); font-size: 0.9rem; }
.field input[aria-invalid="true"] { border-color: var(--auth-danger); }
.account-security { display: grid; gap: 1rem; }
#mfa-enrollment { display: grid; gap: 0.75rem; }
#mfa-qr { display: block; width: 200px; max-width: 100%; height: auto; background: white; }
.field-hint, .security-note { font-size: 0.875rem; color: var(--auth-text-secondary); }

.action-link {
  display: grid;
  place-items: center;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  text-decoration: none;
}

.pro-introduction {
  padding: clamp(4rem, 8vw, 8rem) max(1rem, calc((100vw - 76rem) / 2));
  color: #08243b;
  background: linear-gradient(180deg, #eef5f8 0%, #dbe6ec 100%);
}

.pro-introduction__heading {
  display: grid;
  grid-template-columns: minmax(10rem, 0.7fr) minmax(18rem, 1.5fr);
  gap: 2rem;
  align-items: start;
  margin-bottom: clamp(2.5rem, 5vw, 5rem);
}

.pro-introduction__heading .eyebrow { color: #0b5f91; }

.pro-introduction h2 {
  max-width: 19ch;
  margin: 0;
  font-size: clamp(2rem, 4vw, 4.5rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid #9fb7c6;
  border-bottom: 1px solid #9fb7c6;
}

.capability-list article { padding: 2rem clamp(1rem, 2.5vw, 2.5rem); border-right: 1px solid #9fb7c6; }
.capability-list article:last-child { border-right: 0; }
.capability-list span { color: #37617d; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; }
.capability-list h3 { margin: 1.5rem 0 0.6rem; font-size: 1.15rem; }
.capability-list p { margin: 0; color: #34566d; }

.operational-boundary {
  max-width: 56rem;
  margin: 2.5rem 0 0;
  color: #526d7e;
  font-size: 0.86rem;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding: 2rem max(1rem, calc((100vw - 76rem) / 2));
  color: var(--auth-text-secondary);
  background: var(--auth-bg-deep);
  font-size: 0.8rem;
}

footer span { margin-right: auto; color: var(--auth-text); font-weight: 800; }
footer a { min-height: 44px; text-underline-offset: 0.2em; }

@media (max-width: 700px) {
  .pro-introduction__heading, .capability-list { grid-template-columns: 1fr; }
  .capability-list article { padding: 1.5rem 0; border-right: 0; border-bottom: 1px solid #9fb7c6; }
  .capability-list article:last-child { border-bottom: 0; }
  footer span { width: 100%; }
}

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