* { box-sizing: border-box; }

:root {
  --desk-text: #121827;
  --desk-muted: #52627f;
  --desk-line: #cad2e5;
  --desk-blue: #2563eb;
  --desk-blue-dark: #1d4ed8;
  --desk-link: #2455b6;
  --desk-surface: #f0f3fa;
}

@font-face {
  font-family: InklingWordmark;
  src: url("../assets/inkling-wordmark.woff2") format("woff2");
  font-display: swap;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-top: 52px;
  display: flex;
  flex-direction: column;
  color: var(--desk-text);
  background: #fff;
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }
a:focus-visible { outline: 3px solid #d89521; outline-offset: 4px; }

main { flex: 1; }

.sentinel-site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  min-height: 52px;
  padding: 6px max(24px, calc((100vw - 920px) / 2));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  color: #fff;
  background: rgba(9, 15, 30, 0.97);
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}
.sentinel-site-brand { min-width: 0; display: inline-flex; align-items: center; gap: 6px; color: inherit; text-decoration: none; }
.sentinel-site-brand img { width: 26px; height: 26px; object-fit: contain; }
.sentinel-site-brand span { min-width: 0; display: grid; gap: 1px; }
.sentinel-site-brand strong { font-size: 14px; line-height: 1.1; }
.sentinel-site-brand small { color: #aab8ca; font-size: 9px; line-height: 1.2; }
.sentinel-site-nav { min-width: 0; display: flex; justify-content: center; gap: 16px; }
.sentinel-site-nav a,
.sentinel-site-signin { color: #dfe8f3; font-size: 11px; font-weight: 750; text-decoration: none; white-space: nowrap; }
.sentinel-site-nav a:hover,
.sentinel-site-nav a:focus-visible,
.sentinel-site-signin:hover,
.sentinel-site-signin:focus-visible { color: #fff; }
.sentinel-site-signin { min-height: 30px; display: inline-flex; align-items: center; justify-content: center; padding: 0 12px; border: 1px solid rgba(255, 255, 255, 0.45); border-radius: 6px; }

.inkling-download {
  padding: 72px 24px 76px;
  background: var(--desk-surface);
  border-bottom: 1px solid var(--desk-line);
}
.download-inner { width: min(920px, 100%); margin: 0 auto; }

.inkling-heading { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.inkling-wordmark { display: flex; align-items: center; gap: 7px; }
.inkling-logo { width: 30px; height: 30px; object-fit: contain; flex: 0 0 auto; }
.eyebrow { margin: 0; color: #275dc5; font-size: 13px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
h1 { margin: 0; color: var(--desk-text); font-family: InklingWordmark, cursive; font-size: 48px; font-weight: 500; line-height: 1; }
.download-intro { max-width: 670px; margin: 22px 0 28px; color: var(--desk-muted); font-size: 19px; line-height: 1.65; }
.download-action { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; }
.download-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border: 1px solid var(--desk-blue-dark);
  border-radius: 5px;
  background: var(--desk-blue);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
}
.download-button:hover { background: var(--desk-blue-dark); }
.download-button span { font-size: 22px; line-height: 1; }
.download-action p { margin: 0; color: var(--desk-muted); font-size: 14px; }

.access-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  width: min(920px, calc(100% - 48px));
  margin: 0 auto;
  padding: 52px 0 64px;
}
.access-options article { min-width: 0; border-top: 2px solid var(--desk-line); padding-top: 20px; }
.access-options article + article { border-top-color: #cec1de; }
.access-options h2 { margin: 0 0 10px; font-size: 21px; line-height: 1.35; }
.access-options p { margin: 0; color: #4b5a61; font-size: 16px; line-height: 1.7; }
.desk-link { display: inline-flex; gap: 8px; margin-top: 16px; color: var(--desk-link); font-size: 15px; font-weight: 700; text-underline-offset: 4px; }

.sentinel-site-footer {
  min-height: 108px;
  padding: 16px 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  gap: 8px;
  align-items: center;
  color: #fff;
  background: #0b1020;
  text-align: center;
}
.sentinel-site-footer .sentinel-site-brand { justify-content: center; gap: 12px; }
.sentinel-site-footer .sentinel-site-brand img { width: 32px; height: 32px; flex-shrink: 0; }
.sentinel-site-footer .sentinel-site-brand strong { font-size: 15px; line-height: 1.3; }
.sentinel-site-footer .sentinel-site-copyright { display: block; margin: 0; color: #91a2b7; font-size: 10px; line-height: 1.5; }

@media (max-width: 1100px) {
  body { padding-top: 120px; }
  .sentinel-site-header { grid-template-columns: minmax(0, 1fr) auto; gap: 8px 20px; padding: 10px 24px; }
  .sentinel-site-signin { grid-column: 2; grid-row: 1; }
  .sentinel-site-nav { grid-column: 1 / -1; display: flex; min-width: 0; justify-content: flex-start; overflow-x: auto; padding: 8px 0; scrollbar-width: thin; scrollbar-color: #8194b9 #121827; }
}

@media (max-width: 640px) {
  .sentinel-site-header { padding: 10px 18px; }
  .sentinel-site-brand img { width: 38px; height: 38px; }
  .sentinel-site-brand strong { font-size: 17px; white-space: nowrap; }
  .sentinel-site-brand small { display: none; }
  .inkling-download { padding: 52px 20px 56px; }
  .inkling-heading { gap: 8px; }
  .inkling-logo { width: 28px; height: 28px; }
  h1 { font-size: 34px; }
  .download-intro { font-size: 17px; }
  .access-options { grid-template-columns: 1fr; gap: 30px; width: calc(100% - 40px); padding: 28px 0 42px; }

}