/* understand first's landing in the D4U Store, in its own look (brand manual v2): ink and paper, signal blue
   kept to about a tenth of the page, Archivo for text and IBM Plex Mono for labels.
   Only what is inside <main class="uf">. The shell keeps its header and footer; sizes are the shell's --sh-fs-* tokens. */

@font-face { font-family: "Archivo"; src: url("../fonts/archivo-400.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Archivo"; src: url("../fonts/archivo-700.ttf") format("truetype"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Archivo"; src: url("../fonts/archivo-800.ttf") format("truetype"); font-weight: 800; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("../fonts/plex-500.ttf") format("truetype"); font-weight: 500; font-display: swap; }

body { margin: 0; background: var(--sh-bg); color: var(--sh-ink); font-family: var(--sh-font); -webkit-font-smoothing: antialiased; }

.uf {
  --uf-bg: #FAFAF7; --uf-ink: #0B0B0C; --uf-muted: #55575C; --uf-soft: #6B6D72; --uf-line: #E2E0D9;
  --uf-signal: #2B45FF;
  --uf-text: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --uf-label: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  display: block; background: var(--uf-bg); color: var(--uf-ink); font: 400 var(--sh-fs-body)/1.6 var(--uf-text);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .uf { --uf-bg: #0B0B0C; --uf-ink: #FAFAF7; --uf-muted: #A9ABB2; --uf-soft: #A9ABB2; --uf-line: #26272B; --uf-signal: #6E86FF; }
}
:root[data-theme="dark"] .uf { --uf-bg: #0B0B0C; --uf-ink: #FAFAF7; --uf-muted: #A9ABB2; --uf-soft: #A9ABB2; --uf-line: #26272B; --uf-signal: #6E86FF; }

.uf *, .uf *::before, .uf *::after { box-sizing: border-box; }
.uf a { color: inherit; }
.uf ::selection { background: var(--uf-signal); color: #FAFAF7; }
.uf :focus-visible { outline: 2px solid var(--uf-signal); outline-offset: 4px; }
.uf .sr { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* The logo has a light and a dark version, following the same two selectors as the theme */
.uf .logo .when-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .uf .logo .when-light { display: none; }
  :root:not([data-theme="light"]) .uf .logo .when-dark { display: block; }
}
:root[data-theme="dark"] .uf .logo .when-light { display: none; }
:root[data-theme="dark"] .uf .logo .when-dark { display: block; }

.uf .wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.uf .label { font: 500 var(--sh-fs-label)/1.5 var(--uf-label); letter-spacing: .1em; text-transform: uppercase; color: var(--uf-soft); }

/* Hero: the full logo (with its tagline), the promise, the status and the D4U button */
.uf .hero { padding: 56px 0 48px; border-bottom: 1px solid var(--uf-line); }
.uf .logo { margin: 0 0 36px; width: clamp(260px, 72vw, 449px); }
.uf .logo svg { width: 100%; height: auto; }
.uf .logo .when-light { display: block; }
/* The cursor blinks three times on load, then stays. Static if motion is reduced. */
.uf .cursor { animation: uf-blink 1.2s steps(1) 3; }
@keyframes uf-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .uf .cursor { animation: none; } }

.uf .promise { margin: 0 0 18px; max-width: 22em; font: 800 var(--sh-fs-h2)/1.1 var(--uf-text); letter-spacing: -.035em; }
.uf .lead { margin: 0 0 24px; max-width: 36em; font-size: var(--sh-fs-lead); color: var(--uf-muted); }
.uf .status { display: inline-flex; align-items: center; gap: 10px; margin: 0; padding: 4px 10px; border: 1px solid currentColor; font: 500 var(--sh-fs-label)/1.6 var(--uf-label); letter-spacing: .06em; text-transform: uppercase; }
.uf .status::before { content: ""; width: 8px; height: 8px; background: var(--uf-signal); }
/* Future home: plain text until the site is live. */
.uf .domain { margin: 14px 0 0; font: 500 var(--sh-fs-small)/1.6 var(--uf-label); color: var(--uf-muted); }
.uf .domain span { color: var(--uf-ink); }

/* The three pillars */
.uf .band { padding: 56px 0; }
.uf .h2 { margin: 0 0 28px; font: 700 var(--sh-fs-h2)/1.15 var(--uf-text); letter-spacing: -.03em; }
.uf .pillars { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--uf-ink); }
.uf .pillars li { padding: 22px 22px 26px 0; border-right: 1px solid var(--uf-line); }
.uf .pillars li + li { padding-left: 22px; }
.uf .pillars li:last-child { border-right: 0; }
.uf .pillars h3 { margin: 10px 0 8px; font: 700 var(--sh-fs-h3)/1.2 var(--uf-text); letter-spacing: -.03em; }
.uf .pillars p { margin: 0; color: var(--uf-muted); font-size: var(--sh-fs-body); }
.uf .pillars .when { margin-top: 14px; font: 500 var(--sh-fs-label)/1.5 var(--uf-label); letter-spacing: .08em; text-transform: uppercase; color: var(--uf-soft); }
.uf .pillars .first { color: var(--uf-signal); }
@media (max-width: 760px) {
  .uf .pillars { grid-template-columns: 1fr; }
  .uf .pillars li, .uf .pillars li + li { padding: 20px 0 22px; border-right: 0; border-bottom: 1px solid var(--uf-line); }
  .uf .pillars li:last-child { border-bottom: 0; }
}

.uf .closing { margin: 0; padding: 8px 0 40px; font: 700 var(--sh-fs-h3)/1.3 var(--uf-text); letter-spacing: -.02em; }
.uf .closing span { display: block; margin-top: 8px; color: var(--uf-muted); font-weight: 400; font-size: var(--sh-fs-body); letter-spacing: 0; }

/* Close (same text on every store landing) */
.uf .d4u-close { padding: 48px 0 72px; border-top: 1px solid var(--uf-line); }
.uf .d4u-close h2 { margin: 0 0 12px; font: 700 var(--sh-fs-h2)/1.15 var(--uf-text); letter-spacing: -.03em; }
.uf .d4u-close p { margin: 0; max-width: 36em; color: var(--uf-muted); }

/* Buttons: square, in the brand's signal blue */
.uf .actions { margin: 28px 0 0; }
.uf .d4u-close .actions { margin-top: 28px; }
.uf .btn { display: inline-flex; align-items: center; min-height: 48px; padding: 12px 22px; background: var(--uf-signal); color: #FFFFFF; font: 700 var(--sh-fs-button)/1 var(--uf-text); text-decoration: none; }
.uf .btn:hover { filter: brightness(1.08); }