/* Build Notes, build-note articles, and Login keep their own composition here.
   Shared public primitives remain additive; all page-specific overrides stay
   behind the route body classes so Blog and Architecture internals are untouched. */

.public-build-notes,
.public-build-note,
.public-login {
  --secondary-display: "Space Grotesk", "IBM Plex Sans", Inter, ui-sans-serif, system-ui, sans-serif;
  --secondary-body: "IBM Plex Sans", Inter, ui-sans-serif, system-ui, sans-serif;
  --secondary-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --secondary-flow-space: clamp(64px, 8vw, 112px);
}

.public-build-notes main,
.public-build-note main,
.public-login .auth-page {
  font-family: var(--secondary-body);
}

.public-build-notes .public-page-title,
.public-build-note .article-hero .public-page-title,
.public-login .public-page-title {
  font-family: var(--secondary-display);
  font-weight: 650;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.public-build-notes .public-page-lede,
.public-build-note .article-hero .public-page-lede,
.public-login .public-page-lede {
  max-width: 64ch;
  text-wrap: pretty;
}

.public-build-notes .notes-hero {
  position: relative;
  min-height: min(780px, calc(100vh - 76px));
  padding-block: clamp(72px, 9vw, 132px);
  isolation: isolate;
}

.public-build-notes .notes-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 12%;
  right: 0;
  width: min(54vw, 660px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan) 13%, transparent), transparent 68%);
  filter: blur(18px);
  pointer-events: none;
}

.public-build-notes .notes-hero > div {
  position: relative;
  z-index: 1;
}

.public-build-notes .notes-hero .public-page-title {
  max-width: 8ch;
  font-size: clamp(4.4rem, 10vw, 8.4rem);
}

.public-build-notes .notes-hero .public-page-lede {
  margin: 24px 0 0;
  font-size: clamp(1.05rem, 1.65vw, 1.28rem);
}

.public-build-notes .notes-hero .public-media-frame {
  position: relative;
  padding: clamp(10px, 1.5vw, 18px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--panel-strong) 88%, transparent);
  box-shadow: 0 28px 80px var(--shadow);
  overflow: hidden;
}

.public-build-notes .notes-hero .public-media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent);
  pointer-events: none;
}

.public-build-notes .notes-hero .public-media-frame img {
  padding: 0;
  border: 0;
  border-radius: 7px;
}

.public-build-notes .public-flow-section {
  position: relative;
  padding-block: var(--secondary-flow-space);
  border-top: 1px solid var(--line);
}

.public-build-notes .public-section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(280px, 1fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: end;
  max-width: none;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.public-build-notes .public-section-head h2 {
  max-width: 12ch;
  margin: 0;
  font-family: var(--secondary-display);
  font-size: clamp(2.35rem, 5vw, 4.7rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.public-build-notes .public-section-head p {
  max-width: 54ch;
  margin: 0;
  justify-self: end;
  font-size: 1rem;
}

.public-build-notes .note-grid {
  gap: clamp(16px, 2.2vw, 26px);
}

.public-build-notes .note-card {
  position: relative;
  overflow: hidden;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.public-build-notes .note-card::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0;
  transform: scaleX(0.7);
  transform-origin: left;
  transition: opacity 180ms ease, transform 180ms ease;
  pointer-events: none;
}

.public-build-notes .note-card:hover,
.public-build-notes .note-card:focus-within {
  border-color: var(--line-strong);
  box-shadow: 0 22px 58px color-mix(in srgb, var(--shadow) 76%, transparent);
  transform: translateY(-3px);
}

.public-build-notes .note-card:hover::after,
.public-build-notes .note-card:focus-within::after {
  opacity: 1;
  transform: scaleX(1);
}

.public-build-notes .note-card a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.public-build-notes .note-card .public-media-frame {
  border-color: var(--line);
  transition: border-color 180ms ease;
}

.public-build-notes .note-card:focus-within .public-media-frame,
.public-build-notes .note-card:hover .public-media-frame {
  border-color: var(--line-strong);
}

.public-build-notes .note-card span,
.public-build-note .public-kicker,
.public-login .field label,
.public-login .auth-mode,
.public-login .auth-divider {
  font-family: var(--secondary-mono);
}

@media (min-width: 981px) {
  .public-build-notes .note-grid:not(.two) > .note-card:first-child:not(:only-child) {
    grid-column: span 2;
  }

  .public-build-notes .note-grid > .note-card:only-child {
    grid-column: 1 / -1;
  }

  .public-build-notes .note-grid > .note-card:only-child a {
    display: grid;
    grid-template-columns: minmax(300px, 0.92fr) minmax(0, 1.08fr);
    grid-template-rows: auto auto 1fr;
    column-gap: clamp(26px, 4vw, 58px);
    align-items: start;
    padding: clamp(20px, 3vw, 34px);
  }

  .public-build-notes .note-grid > .note-card:only-child img {
    grid-row: 1 / -1;
    min-height: 260px;
    margin: 0;
  }

  .public-build-notes .note-grid > .note-card:only-child h3 {
    margin-top: 12px;
    font-family: var(--secondary-display);
    font-size: clamp(1.7rem, 3vw, 2.8rem);
    line-height: 1.04;
  }
}

.public-build-note .article-shell {
  padding-bottom: var(--secondary-flow-space);
}

.public-build-note .article-hero {
  position: relative;
  min-height: min(720px, calc(100vh - 76px));
  padding-block: clamp(68px, 8vw, 116px);
  border-bottom: 1px solid var(--line);
}

.public-build-note .article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 14% 42% auto -16%;
  height: 72%;
  background: radial-gradient(circle, color-mix(in srgb, var(--green) 9%, transparent), transparent 70%);
  pointer-events: none;
}

.public-build-note .article-hero .back-link {
  margin-bottom: 26px;
  font-family: var(--secondary-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.public-build-note .article-hero .public-page-title {
  max-width: 11ch;
  font-size: clamp(3.5rem, 7vw, 7rem);
}

.public-build-note .article-hero .public-page-lede {
  margin: 22px 0 26px;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.public-build-note .article-hero .public-media-frame {
  padding: clamp(9px, 1.2vw, 15px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 26px 72px var(--shadow);
}

.public-build-note .article-hero .public-media-frame img {
  width: 100%;
  border: 0;
  border-radius: 7px;
}

.public-build-note .article-layout {
  padding-top: clamp(48px, 7vw, 88px);
}

.public-build-note .article-rail nav {
  border-left: 2px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel) 82%, transparent);
}

.public-build-note .article-rail a {
  transition: color 160ms ease, transform 160ms ease;
}

.public-build-note .article-rail a:hover,
.public-build-note .article-rail a:focus-visible {
  color: var(--text);
  transform: translateX(3px);
  outline: none;
}

/* The case study remains governed by its .pb theme variables and reading modes. */
.public-build-note .pb-case-study .pb-article-head.public-page-intro {
  position: relative;
  display: block;
  padding-top: 0;
  padding-bottom: clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--pb-hair);
}

.public-build-note .pb-case-study .pb-article-head::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: min(180px, 36%);
  height: 1px;
  background: linear-gradient(90deg, var(--pb-blue), var(--pb-cyan));
}

.public-build-note .pb-case-study .public-page-title {
  max-width: 16ch;
  text-wrap: balance;
}

.public-build-note .pb-case-study .public-page-lede {
  max-width: 68ch;
  text-wrap: pretty;
}

.public-build-note .pb-case-study .pb-template-metrics {
  margin-block: clamp(32px, 5vw, 58px);
}

.public-login .auth-page {
  position: relative;
  min-height: calc(100vh - 76px);
  padding-block: clamp(48px, 7vw, 88px);
  isolation: isolate;
}

.public-login .auth-page::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 8%;
  left: -12%;
  width: min(68vw, 820px);
  aspect-ratio: 1.3;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--blue) 12%, transparent), transparent 68%);
  filter: blur(22px);
  pointer-events: none;
}

.public-login .auth-copy.public-page-intro {
  display: block;
  max-width: 700px;
  padding: 0;
  border-bottom: 0;
}

.public-login .auth-copy .public-media-frame {
  border: 0;
  background: transparent;
  box-shadow: none;
}

.public-login .auth-copy .public-page-title {
  max-width: 13ch;
  font-size: clamp(3rem, 5.7vw, 5.7rem);
  line-height: 0.98;
}

.public-login .auth-copy .public-page-lede {
  margin: 24px 0 28px;
  font-size: clamp(1rem, 1.4vw, 1.16rem);
}

.public-login .auth-card {
  position: relative;
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--panel-strong) 94%, transparent);
  box-shadow: 0 34px 90px var(--shadow);
  backdrop-filter: blur(18px);
}

.public-login .auth-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  border-radius: inherit;
  background: linear-gradient(180deg, var(--blue), var(--cyan), transparent 78%);
}

.public-login .auth-card h2 {
  font-family: var(--secondary-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.public-login .auth-caption {
  margin-bottom: 24px;
  line-height: 1.55;
}

.public-login .field label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.public-login .field input {
  min-height: 48px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.public-login .field input:hover {
  border-color: var(--line-strong);
}

.public-login .field input:focus-visible {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 20%, transparent);
}

.public-login .auth-mode button,
.public-login .auth-primary,
.public-login .auth-google {
  min-height: 46px;
}

.public-login .auth-mode button:focus-visible,
.public-login .auth-primary:focus-visible,
.public-login .auth-google:focus-visible,
.public-login .auth-reset a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.public-login .auth-primary:disabled {
  cursor: wait;
  opacity: 0.72;
}

@media (max-width: 980px) {
  .public-build-notes .notes-hero,
  .public-build-note .article-hero {
    min-height: auto;
  }

  .public-build-notes .public-section-head {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .public-build-notes .public-section-head p {
    justify-self: start;
  }

  .public-login .auth-copy .public-page-title {
    max-width: 16ch;
  }
}

@media (max-width: 640px) {
  .public-build-notes,
  .public-build-note,
  .public-login {
    --secondary-flow-space: 58px;
  }

  .public-build-notes .notes-hero {
    padding-block: 52px 68px;
  }

  .public-build-notes .notes-hero .public-page-title,
  .public-build-note .article-hero .public-page-title {
    font-size: clamp(2.9rem, 16vw, 4.8rem);
  }

  .public-build-notes .public-section-head h2 {
    font-size: clamp(2.2rem, 12vw, 3.5rem);
  }

  .public-build-notes .note-card:hover,
  .public-build-notes .note-card:focus-within {
    transform: none;
  }

  .public-build-note .article-hero {
    padding-block: 48px 58px;
  }

  .public-build-note .article-layout {
    padding-top: 42px;
  }

  .public-login .auth-page {
    display: block;
    min-height: calc(100vh - 66px);
    padding-block: 32px 48px;
  }

  .public-login .auth-card {
    width: min(100%, 440px);
    margin-inline: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .public-build-notes .note-card,
  .public-build-notes .note-card::after,
  .public-build-notes .note-card .public-media-frame,
  .public-build-note .article-rail a,
  .public-login .field input {
    transition: none;
  }

  .public-build-notes .note-card:hover,
  .public-build-notes .note-card:focus-within,
  .public-build-note .article-rail a:hover,
  .public-build-note .article-rail a:focus-visible {
    transform: none;
  }
}