:root {
  --bg: #000000;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.62);
  --accent: #f5c542;
  --accent-hover: #ffd56a;
  --accent-pressed: #e0b12d;
  --surface: #111111;
  --line: rgba(255, 255, 255, 0.16);
  --max-width: 87.5rem;
  --radius-video: 1.25rem;
  --radius-btn: 999px;
  --space: clamp(1.5rem, 4vh, 2.5rem);
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Display",
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  width: min(100%, 26.25rem);
  margin: 0 auto;
  padding: clamp(1.75rem, 5vw, 2.75rem) 1.25rem clamp(2.5rem, 6vw, 3.5rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space);
}

.panel {
  display: contents;
}

.brand {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  order: 1;
}

.logo {
  margin: 0;
  width: min(80vw, 100%);
  max-width: 100%;
  line-height: 0;
}

.logo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.tagline {
  margin: 0.5rem 0 0;
  font-size: clamp(1rem, 3.6vw, 1.15rem);
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.video-section {
  width: 100%;
  order: 2;
}

.video-shell {
  display: flex;
  justify-content: center;
  width: 100%;
}

.video-frame {
  position: relative;
  aspect-ratio: 9 / 16;
  width: min(100%, 22.5rem);
  height: auto;
  background-color: var(--surface);
  background-image: url("assets/swapmingle-video-poster.jpg");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  border-radius: var(--radius-video);
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.video-frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: #000;
}

.video-poster-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: inherit;
  background: transparent;
  cursor: pointer;
  z-index: 2;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  touch-action: manipulation;
}

.video-poster-overlay img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
  border-radius: inherit;
}

.video-poster-overlay[hidden] {
  display: none;
}

.video-poster-overlay:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -3px;
}

.downloads {
  width: 100%;
  max-width: 22.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  order: 3;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 3.5rem;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-btn);
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: inherit;
  border: 1.5px solid transparent;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #111;
}

a.btn-primary:hover {
  background: var(--accent-hover);
}

a.btn-primary:active {
  background: var(--accent-pressed);
  transform: scale(0.985);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--accent);
}

a.btn-secondary:hover {
  background: var(--accent);
  color: #111;
}

a.btn-secondary:active {
  background: var(--accent-pressed);
  border-color: var(--accent-pressed);
  color: #111;
  transform: scale(0.985);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  background: transparent;
  color: rgba(255, 255, 255, 0.5);
  border-color: rgba(245, 197, 66, 0.35);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
  opacity: 1;
}

.socials {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  order: 4;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--text);
  background: transparent;
  transition:
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.social-btn svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: currentColor;
}

a.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(245, 197, 66, 0.08);
}

a.social-btn:active {
  transform: scale(0.94);
}

.social-btn.is-disabled,
.social-btn[aria-disabled="true"] {
  color: rgba(255, 255, 255, 0.32);
  border-color: rgba(255, 255, 255, 0.08);
  cursor: default;
  pointer-events: none;
}

.contact {
  padding-top: 0.25rem;
  order: 5;
}

.email {
  color: var(--muted);
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  border-bottom: 1px solid transparent;
  transition:
    color 0.2s ease,
    border-color 0.2s ease;
}

.email:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

a.btn:focus-visible,
a.social-btn:focus-visible,
.email:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (min-width: 60rem) and (min-height: 36rem) {
  body {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .page {
    width: min(90vw, var(--max-width));
    max-width: var(--max-width);
    min-height: 100svh;
    margin: 0 auto;
    padding: clamp(1.5rem, 5.5vh, 3.25rem) 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: clamp(2.75rem, 6vw, 6rem);
  }

  .panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex: 1 1 0;
    min-width: 18rem;
    order: 2;
  }

  .brand,
  .downloads,
  .socials,
  .contact {
    order: 0;
  }

  .brand {
    width: 100%;
    margin-bottom: clamp(1.75rem, 4.5vh, 2.75rem);
  }

  .logo {
    width: clamp(17.5rem, 22vw, 22.5rem);
    max-width: 100%;
  }

  .tagline {
    margin-top: 0.65rem;
    font-size: clamp(1.08rem, 1.35vw, 1.28rem);
  }

  .video-section {
    flex: 0 0 auto;
    width: auto;
    order: 1;
    transform: translateX(240px);
  }

  .video-shell {
    justify-content: flex-start;
    width: auto;
  }

  .video-frame {
    --video-h: min(80svh, calc(100svh - 4.5rem));
    width: calc(var(--video-h) * 9 / 16);
    height: var(--video-h);
    max-height: 82svh;
    aspect-ratio: 9 / 16;
  }

  .downloads {
    width: min(100%, 20.5rem);
    max-width: 20.5rem;
    margin-bottom: clamp(1.5rem, 4vh, 2.25rem);
  }

  .socials {
    margin-bottom: clamp(1.15rem, 3vh, 1.65rem);
  }

  .contact {
    padding-top: 0;
  }

  a.btn:hover {
    transform: translateY(-1px);
  }

  a.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(245, 197, 66, 0.22);
  }
}

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

  a.btn:hover,
  a.btn:active,
  a.social-btn:active {
    transform: none;
  }
}