/* ══════════════════════════════════════════════════════════════════════════
   Corthessa — holding page.
   ──────────────────────────────────────────────────────────────────────────
   One screen, no JavaScript, no third-party requests, five files. It exists so
   corthessa.com answers with something the product's own name is on, while the
   real page is designed.

   Deliberately NOT a stripped-down version of the full site: nothing here is
   scaffolding to build on, so there is no half-built system to inherit. When
   the real page lands it replaces this file outright.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --ink:   #0E1016;   /* the app's own ground, used here as the text colour */
  --fg-2:  #545C6B;   /* 6.7:1 on white */
  --fg-3:  #636B7A;   /* 4.9:1 against the gradient's DARKEST end   */
                      /* (#F4F5F8), not just against white — the    */
                      /* wordmark sits at 13px and #6A7280 measured */
                      /* 4.55 there, which is inside the noise      */
  --accent:#1A62C0;   /* the app's #4B9EFF darkened for a light ground:      */
                      /* #4B9EFF on white is 2.75:1 and fails AA; this is    */
                      /* the same hue, 5.4:1 at the darkest end (measured)   */
  /* Segoe UI Variable leads — the app's own face, present on every machine
     that can run the product. -apple-system deliberately does not lead: this
     is a Windows product. */
  --sans: "Segoe UI Variable Text", "Segoe UI Variable", "Segoe UI", system-ui,
          "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  --display: "Segoe UI Variable Display", "Segoe UI Variable", "Segoe UI",
             system-ui, "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* The wordmark, subset from the app's own Michroma-Regular.ttf to caps and
   digits: 62 968 → 2 496 bytes. Display use only — single weight.
   The url is relative to THIS stylesheet, not to the page. */
@font-face {
  font-family: "Michroma Caps";
  src: url("michroma-caps.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0020, U+002D, U+0030-0039, U+0041-005A;
}

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

body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(24px, 6vw, 72px);
  background:
    radial-gradient(52% 44% at 50% 30%, rgb(75 158 255 / .07), transparent 72%),
    linear-gradient(180deg, #FFFFFF 0%, #FBFCFE 68%, #F4F5F8 100%);
  color: var(--fg-2);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-synthesis-weight: none;
  text-align: center;
}

.pad { max-width: 44rem; }

.mark { width: 52px; height: 52px; margin: 0 auto 26px; }

.wordmark {
  font-family: "Michroma Caps", var(--display);
  text-transform: uppercase;
  letter-spacing: .2em;
  font-weight: 400;
  font-size: .8125rem;
  color: var(--fg-3);
  /* the letterspacing is applied to the right of every glyph, including the
     last one, so the string sits half a space right of centre without this */
  text-indent: .2em;
  margin: 0 0 clamp(28px, 5vh, 52px);
}

h1 {
  font-family: var(--display);
  font-size: clamp(2.25rem, 6.4vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -.042em;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 22px;
}

.sub {
  font-size: clamp(1.0625rem, 1.4vw, 1.1875rem);
  max-width: 40ch;
  margin: 0 auto;
  color: var(--fg-2);
}

.contact { margin: clamp(32px, 6vh, 56px) 0 0; font-size: .9375rem; }
.contact a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgb(26 98 192 / .32);
  padding-bottom: 1px;
}
.contact a:hover { border-bottom-color: currentColor; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }