/* styles.css - styles for the demo/placeholder page only (logo, cards, footer, background).
   The chat widget's styles are in chat-widget.css; link that file as well on any page that
   shows the widget. The "Segoe UI Web" font family used below is declared in chat-widget.css. */

* {
  box-sizing: border-box;
}

/* ===== Placeholder page (behind the chat widget) ===== */

body {
  margin: 0;
  font-family: "Segoe UI Web", "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(ellipse at 8% 100%, rgba(226, 244, 168, 0.55), transparent 45%),
    radial-gradient(ellipse at 40% 0%, rgba(255, 214, 170, 0.35), transparent 40%),
    linear-gradient(100deg, #ffffff 0%, #fbfdfe 45%, #f0f7fd 100%);
  color: #242424;
  min-height: 100vh;
  min-height: 100dvh; /* visible height on iPad/phone Safari, where 100vh includes the hidden toolbar and forces a scroll */
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-bg svg {
  width: 100%;
  height: 100%;
  display: block;
}

.page-shell {
  width: min(1240px, 88vw);
  margin: 0 auto;
  /* vertical spacing scales with window height so the page never needs to scroll */
  padding: clamp(1.25rem, 3vh, 2.6rem) 0 clamp(1.25rem, 3.5vh, 3rem);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.brand-bar__text {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-weight: 350;
  font-size: 1.2rem;
}

.brand-bar__text strong {
  font-weight: 600;
}

.brand-bar__sub {
  margin: 0.2rem 0 0;
  font-weight: 350; /* Segoe UI Semilight */
  font-size: 1.05rem;
  color: #424242;
}

.brand-bar__icon {
  width: 1.5rem;
  height: 1.5rem;
}

.intro {
  margin-top: clamp(1.5rem, 9vh, 9rem);
  max-width: 700px;
  flex: 1;                 /* fills the space down to the footer... */
  display: flex;
  flex-direction: column;  /* ...so the cards can centre within it */
}

.intro__logo {
  margin: 0 0 0 -1.6rem; /* pulls the logo left so its artwork (not its transparent margin) aligns with the page content */
  line-height: 0;
}

/* Logo + byline sit up to 100px lower than their layout slot; a transform keeps the
   rest of the page (cards, link, footer) exactly where it is. The shift shrinks on
   short windows (100px at >=900px tall, 40px at 750px, 0 at <=650px) so the byline
   never runs into the cards. */
.intro__logo,
.intro__byline {
  transform: translateY(clamp(0px, calc(100vh * 0.4 - 260px), 100px));
  transform: translateY(clamp(0px, calc(100dvh * 0.4 - 260px), 100px));
}

.intro__logo img {
  width: min(520px, 100%);
  height: auto;
}

.intro__byline {
  margin: 0.7rem 0 0;
  font-size: 1.05rem;
  font-weight: 350;
  color: #242424;
}

.intro__byline strong {
  font-weight: 600;
}

.feature-list {
  list-style: none;
  margin: auto 0 0;        /* equal gap above (this) and below (.intro__alt-link) = midway */
  padding: clamp(1.5rem, 5vh, 4.5rem) 0 0; /* minimum gap above, shrinks on short windows */
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 190px));
  gap: 1rem;
}

.feature-card {
  min-height: 7rem;
  background: #fff;
  border-radius: 10px;
  padding: 1rem 1.1rem 1.1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08), 0 8px 18px rgba(0, 0, 0, 0.07);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.intro__alt-link {
  margin: 1.5rem 0 auto;
  padding-bottom: clamp(1.5rem, 5vh, 4.5rem); /* same minimum gap as above the cards */
  font-weight: 350; /* Segoe UI Semilight */
  font-size: 0.85rem; /* one step below the 0.95rem card labels */
  color: #424242;
}

.intro__alt-link a {
  color: #4f52b2;
  text-decoration: none;
  font-weight: 600; /* Segoe UI Semibold */
}

.intro__alt-link a:hover {
  text-decoration: underline;
}

.page-footer {
  margin-top: auto;
  padding-top: clamp(0.75rem, 2vh, 3rem);
  font-size: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.page-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #4f52b2;
  text-decoration: none;
}

.page-footer__link:hover {
  text-decoration: underline;
}

.page-footer__link svg {
  width: 1.4rem;
  height: 1.4rem;
  color: #242424;
}

.feature-card svg {
  width: 1.75rem;
  height: 1.75rem;
}

@media (max-width: 900px) {
  .feature-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  /* Tiles become full-width rows: icon beside the label */
  .feature-list {
    grid-template-columns: 1fr;
    max-width: none;
    gap: 0.6rem;
  }

  .page-shell .feature-card {
    min-height: 0;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
  }

  .feature-card svg {
    width: 1.5rem;
    height: 1.5rem;
    flex: none;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: 90vw;
    padding-top: 1.4rem;
    padding-bottom: 7.2rem;
  }

  .brand-bar__text {
    font-size: 1rem;
  }

  /* The repo URL has no natural break points; let it wrap instead of widening the page */
  .page-footer {
    font-size: 1rem;
  }

  .page-footer__link span {
    overflow-wrap: anywhere;
  }
}