/* ==========================================================================
   Tokens
   ========================================================================== */

:root {
  --bg: #1C1FE4;
  --fg: #FFFFFF;
  --transition: 400ms ease-in-out;

  --font-display: 'Momo Trust Display', 'Helvetica Neue', Arial, sans-serif;
  --font-sans: 'Momo Trust Sans', 'Helvetica Neue', Arial, sans-serif;
}

/* ==========================================================================
   Reset / base
   ========================================================================== */

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

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden; /* no scrolling, ever */
  background: var(--bg);
  font-family: var(--font-sans);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.main-container {
  width: 100vw;
  height: 100vh;
  height: 100dvh; /* accounts for mobile browser chrome; falls back to 100vh */
  overflow: hidden;
  background: var(--bg);
  display: flex;
}

.content-container {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;

  /* Vertical padding is capped by height (min-partner) so short viewports
     never force a scrollbar; see the breakpoint blocks below. */
  padding-inline: 32px;
  padding-block: min(64px, 8vh);
}

.copy-container {
  width: 100%;
}

.copy-container > * {
  margin: 0;
  width: 100%;
  color: var(--fg);
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.headline {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 2.05;
}

.subhead {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.25;
}

.note {
  font-family: var(--font-sans);
  font-weight: 100;
  line-height: 1.5;
  padding-top: 8px;
}

.link-group {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  outline: 2px solid var(--fg);
  outline-offset: 0;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: min(24px, 3vh);
  line-height: 1.2;
  padding-inline: 24px;
  padding-block: min(8px, 1vh);
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  border-radius: 24px;
  transition: background-color var(--transition), color var(--transition);
}

.btn:hover,
.btn:focus-visible {
  background-color: var(--fg);
  color: var(--bg);
}

.btn:focus-visible {
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}

/* ==========================================================================
   Breakpoints
   Mobile flat band:  360px – 849px  (values as specified)
   Desktop flat band: 850px – 1280px (values as specified)
   Below 360px / above 1280px: fluid scaling continues past the spec's
   fixed bands rather than clamping, per width — each still capped by the
   matching vh min-partner so height is never the thing that overflows.
   ========================================================================== */

/* Fluid down, below the smallest specified mobile width */
@media (max-width: 359px) {
  .content-container {
    padding-inline: 8.89vw;
    padding-block: min(17.78vw, 8vh);
  }
  .headline  { font-size: min(10vw, 4.5vh); }
  .subhead   { font-size: min(8.89vw, 4vh); }
  .note      { font-size: min(4.44vw, 2.5vh); }
  .btn {
    font-size: min(6.67vw, 3vh);
    padding-inline: 6.67vw;
    padding-block: min(2.22vw, 1vh);
  }
}

/* Mobile flat band */
@media (min-width: 360px) and (max-width: 849px) {
  .content-container {
    padding-inline: 64px;
    padding-block: min(128px, 16vh);
  }
  .headline  { font-size: min(60vw, 4.5vh); }
  .subhead   { font-size: min(32px, 3vh); }
  .note      { font-size: min(16px, 2.5vh); }
  .btn {
    font-size: min(24px, 2vh);
    padding-inline: 24px;
    padding-block: min(8px, 1vh);
  }
}

/* Desktop flat band */
@media (min-width: 850px) and (max-width: 1280px) {
  .content-container {
    padding-inline: 64px;
    padding-block: min(128px, 16vh);
  }
  .headline  { font-size: min(64px, 8vh); }
  .subhead   { font-size: min(40px, 5vh); }
  .note      { font-size: min(20px, 2.1vh); }
  .btn {
    font-size: min(24px, 3vh);
    padding-inline: 24px;
    padding-block: min(8px, 1vh);
  }
}

/* Fluid up, above the largest specified desktop width */
@media (min-width: 1281px) {
  .content-container {
    padding-inline: 5vw;
    padding-block: min(10vw, 16vh);
  }
  .headline  { font-size: min(5vw, 8vh); }
  .subhead   { font-size: min(3.125vw, 5vh); }
  .note      { font-size: min(1.5625vw, 2.5vh); }
  .btn {
    font-size: min(1.875vw, 3vh);
    padding-inline: 1.875vw;
    padding-block: min(0.625vw, 1vh);
  }
}