:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --navy: #151d3f;
  --blue: #4776df;
  --blue-dark: #345ac4;
  --blue-soft: #edf4ff;
  --slate: #5e6b85;
  --border: #dce5f2;
  --surface: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  background: #f4f7fb;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--navy);
  background:
    radial-gradient(circle at 12% 12%, rgba(79, 130, 220, 0.15), transparent 30rem),
    radial-gradient(circle at 88% 88%, rgba(79, 91, 196, 0.11), transparent 27rem),
    linear-gradient(145deg, #f8fbff 0%, #edf2f9 100%);
}

body::before,
body::after {
  position: fixed;
  z-index: 0;
  width: 16rem;
  height: 16rem;
  content: "";
  border: 1px solid rgba(71, 118, 223, 0.09);
  border-radius: 50%;
  pointer-events: none;
}

body::before {
  top: -9rem;
  right: 8%;
}

body::after {
  bottom: -10rem;
  left: 7%;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, 850px);
  margin: 0 auto;
  padding: clamp(2rem, 6vh, 4.5rem) 0 1.5rem;
}

.migration-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(207, 219, 235, 0.9);
  border-radius: 24px;
  box-shadow: 0 28px 75px rgba(27, 43, 79, 0.13), 0 4px 12px rgba(27, 43, 79, 0.04);
}

.brand-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 1.25rem clamp(1.5rem, 5vw, 3.5rem);
  border-bottom: 1px solid #edf1f7;
}

.brand-logo {
  display: block;
  width: 184px;
  height: auto;
}

.product-name {
  padding-left: 1.5rem;
  color: #71809a;
  border-left: 1px solid #d9e1ed;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.content {
  padding: clamp(2rem, 6vw, 4rem) clamp(1.5rem, 7vw, 4.75rem) clamp(2.25rem, 6vw, 4rem);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.42rem 0.75rem;
  color: #2853b6;
  background: var(--blue-soft);
  border: 1px solid #d6e4fb;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  background: #3f77e3;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(63, 119, 227, 0.13);
}

h1 {
  max-width: 680px;
  margin: 1.25rem 0 0;
  color: var(--navy);
  font-size: clamp(2rem, 5vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 680px;
  margin: 1.15rem 0 0;
  color: var(--slate);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
}

.lead strong {
  color: #303c59;
}

.address-notice {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1rem 1.15rem;
  background: linear-gradient(135deg, #f0f6ff, #f7f9ff);
  border: 1px solid #d5e3f8;
  border-radius: 14px;
}

.address-icon {
  display: grid;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  color: white;
  background: linear-gradient(135deg, var(--blue), #6558ca);
  border-radius: 11px;
  box-shadow: 0 7px 16px rgba(71, 118, 223, 0.24);
  font-size: 1.35rem;
  place-items: center;
}

.address-notice div {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.1rem;
}

.address-label {
  color: #70809c;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.address-notice strong {
  overflow-wrap: anywhere;
  color: #25365f;
  font-size: 1rem;
}

.address-availability {
  margin-top: 0.22rem;
  color: #4c5f81;
  font-size: 0.82rem;
  font-weight: 600;
}

.access-section {
  margin-top: 2.35rem;
}

h2 {
  margin: 0;
  color: #26334f;
  font-size: 1.2rem;
  letter-spacing: -0.015em;
}

.section-intro {
  margin: 0.5rem 0 0;
  color: var(--slate);
  font-size: 0.92rem;
  line-height: 1.55;
}

.access-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 1.2rem;
}

.access-option {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1.15rem;
  background: #fbfcfe;
  border: 1px solid var(--border);
  border-radius: 14px;
}

.access-option h3 {
  margin: 0 0 0.38rem;
  color: #26334f;
  font-size: 0.93rem;
}

.access-option p {
  margin: 0;
  color: #69758c;
  font-size: 0.79rem;
  line-height: 1.55;
}

.access-option p strong {
  color: #3b4c6d;
  font-weight: 700;
}

.microsoft-mark,
.mail-mark {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
}

.microsoft-mark {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  padding: 4px;
  background: white;
  border: 1px solid #e0e6ef;
  border-radius: 8px;
}

.microsoft-mark span:nth-child(1) { background: #f25022; }
.microsoft-mark span:nth-child(2) { background: #7fba00; }
.microsoft-mark span:nth-child(3) { background: #00a4ef; }
.microsoft-mark span:nth-child(4) { background: #ffb900; }

.mail-mark {
  display: grid;
  color: #4769c6;
  background: #edf2ff;
  border: 1px solid #d9e3fc;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 800;
  place-items: center;
}

.primary-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  width: 100%;
  min-height: 54px;
  margin-top: 1.65rem;
  padding: 0.85rem 1.25rem;
  color: white;
  background: linear-gradient(135deg, #3e73dd, #6252c4);
  border-radius: 12px;
  box-shadow: 0 12px 24px rgba(63, 101, 201, 0.22);
  font-size: 0.95rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.primary-action span {
  font-size: 1.25rem;
  transition: transform 160ms ease;
}

.primary-action:hover {
  box-shadow: 0 15px 28px rgba(63, 101, 201, 0.28);
  filter: brightness(1.04);
  transform: translateY(-1px);
}

.primary-action:hover span {
  transform: translateX(3px);
}

.primary-action:focus-visible,
.support-copy a:focus-visible {
  outline: 3px solid rgba(71, 118, 223, 0.35);
  outline-offset: 3px;
}

.support-copy {
  margin: 1.25rem auto 0;
  color: #748098;
  font-size: 0.8rem;
  line-height: 1.55;
  text-align: center;
}

.support-copy a {
  color: #3a61c3;
  font-weight: 650;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 1.25rem 1rem 0;
  color: #8490a6;
  font-size: 0.73rem;
  text-align: center;
}

footer span:first-child {
  color: #637087;
  font-weight: 700;
}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 1rem, 850px);
    padding-top: 0.5rem;
  }

  .migration-card {
    border-radius: 18px;
  }

  .brand-header {
    min-height: 76px;
    padding: 1rem 1.25rem;
  }

  .brand-logo {
    width: 150px;
  }

  .product-name {
    display: none;
  }

  .content {
    padding: 1.75rem 1.25rem 2rem;
  }

  h1 {
    font-size: clamp(1.9rem, 10vw, 2.55rem);
  }

  .access-options {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
    gap: 0.25rem;
  }

  footer span[aria-hidden="true"] {
    display: none;
  }
}

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