:host {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  // The lights below spill sideways: clipped here (not `hidden`, which would
  // make a scroll container and break the sticky header).
  overflow-x: clip;
}

// Same bar as pireon.dev's site header.
.ts-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: color-mix(in srgb, var(--ts-surface) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--ts-line);
}

.ts-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: 96rem;
  height: 4rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
  box-sizing: border-box;

  @media (min-width: 768px) {
    padding-inline: 2rem;
  }
}

.ts-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--ts-ink);
  text-decoration: none;
}

.ts-brand__platform {
  font-weight: 700;
}

// The product, after the platform: "Pireon | TaskStream".
.ts-brand__product {
  padding-left: 0.625rem;
  border-left: 1px solid var(--ts-line-strong);
  font-weight: 600;
  background: linear-gradient(
    100deg,
    var(--pi-color-primary),
    var(--pi-color-accent)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ts-header__nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.ts-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ts-header__icon {
  --ts-icon-button-size: 2.25rem;
  --ts-icon-button-border: var(--ts-line);
  color: var(--ts-muted);
  transition:
    color 0.15s ease,
    background-color 0.15s ease;

  &:hover {
    color: var(--ts-ink);
    background: var(--pi-color-primary-25);
  }
}

// A shadow under the header once the page moves, as on pireon.dev.
@keyframes header-lift {
  to {
    border-bottom-color: transparent;
    box-shadow: 0 10px 30px -18px
      color-mix(in srgb, var(--pi-color-primary) 45%, transparent);
  }
}

@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .ts-header {
      animation: header-lift linear both;
      animation-timeline: scroll(root);
      animation-range: 0 5rem;
    }
  }
}

// Content over the platform's two soft lights (pireon.dev's `glow`).
.ts-main {
  position: relative;
  isolation: isolate;
  flex: 1;
  width: 100%;
  max-width: 96rem;
  margin-inline: auto;
  padding: 2.5rem 1.25rem 4rem;
  box-sizing: border-box;

  @media (min-width: 768px) {
    padding-inline: 2rem;
  }

  &::before,
  &::after {
    content: '';
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
  }

  &::before {
    top: -16rem;
    left: 50%;
    width: 64rem;
    height: 34rem;
    transform: translateX(-58%);
    opacity: 0.4;
    background: radial-gradient(
      closest-side,
      var(--pi-color-primary),
      transparent
    );
  }

  &::after {
    top: -4rem;
    right: -10rem;
    width: 26rem;
    height: 26rem;
    opacity: 0.28;
    background: radial-gradient(
      closest-side,
      var(--pi-color-accent),
      transparent
    );
  }
}

@media (max-width: 640px) {
  .ts-header__inner {
    gap: 0.75rem;
  }

  .ts-brand__platform {
    display: none;
  }

  .ts-brand__product {
    padding-left: 0;
    border-left: 0;
  }

  .ts-main {
    padding-top: 1.5rem;
  }
}

// On a phone the brand already leads to the projects list.
@media (max-width: 480px) {
  .ts-header__nav {
    visibility: hidden;
  }
}