/*
 * Product pages (/kavi/, /mizu/, /apt/, /fieldops/, /kai/, /assis/), generated by scripts/build-app-pages.mjs.
 * The landing stays monochrome; a product page adds its app's primary color as an accent through
 * --app-accent (set on <html>) and --app-accent-ink (black or white, whichever reads on it). The accent only
 * paints surfaces, borders and glows, never body text, so text contrast stays the design system's.
 */
.app-page {
  --app-accent: #ffffff;
  --app-accent-ink: #090a0c;
  --app-accent-soft: color-mix(in srgb, var(--app-accent) 16%, transparent);
  --app-accent-line: color-mix(in srgb, var(--app-accent) 55%, var(--border));
}

.app-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(128px, 15vw, 176px) 0 clamp(56px, 8vw, 96px);
}

.app-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(720px, 90vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--app-accent) 34%, transparent), transparent 66%);
  opacity: 0.6;
  pointer-events: none;
}

.app-hero-grid {
  position: relative;
  width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: clamp(32px, 6vw, 84px);
  align-items: center;
}

.app-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.app-breadcrumb a {
  color: var(--text-soft);
  text-decoration: none;
}

.app-breadcrumb a:hover {
  color: var(--text);
}

.app-identity {
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-identity strong,
.app-identity small {
  display: block;
}

.app-identity strong {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.app-identity small {
  margin-top: 2px;
  color: var(--text-muted);
}

.app-logo-tile {
  width: 72px;
  height: 72px;
  flex: none;
  display: grid;
  place-items: center;
  border: 1px solid var(--app-accent-line);
  border-radius: 22px;
  background: var(--surface-1);
  box-shadow: 0 0 0 6px var(--app-accent-soft);
}

.app-logo-tile img {
  width: 64%;
  height: 64%;
  object-fit: contain;
}

.app-hero h1 {
  margin: 28px 0 18px;
  font-size: clamp(2.6rem, 6vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.app-hero-lead {
  max-width: 60ch;
  color: var(--text-soft);
  font-size: clamp(1.04rem, 1.6vw, 1.22rem);
  line-height: 1.6;
}

.app-hero-actions,
.app-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn-app {
  border-color: transparent;
  background: var(--app-accent);
  color: var(--app-accent-ink);
}

.btn-app:hover {
  border-color: transparent;
  background: color-mix(in srgb, var(--app-accent) 86%, var(--contrast));
  color: var(--app-accent-ink);
}

.app-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 26px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.app-visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 42%, var(--app-accent-soft), transparent 62%),
    var(--surface-1);
  box-shadow: var(--shadow-cloud);
}

.app-visual img {
  width: 54%;
  height: 54%;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px var(--shadow-mark));
}

/* Fieldops' approved dark isotype keeps its alpha and becomes white ink in the dark theme. */
.app-page-fieldops .app-logo-tile img,
.app-page-fieldops .app-visual img {
  filter: brightness(0) invert(1);
}

:root[data-theme="light"].app-page-fieldops .app-logo-tile img,
:root[data-theme="light"].app-page-fieldops .app-visual img {
  filter: brightness(0);
}

/* Kai's mark is white on transparent (its brand is black and white): ink in the light theme. */
:root[data-theme="light"].app-page-kai .app-logo-tile img,
:root[data-theme="light"].app-page-kai .app-visual img {
  filter: invert(1);
}

/* Assis' mark comes from its app icon, with the icon's padding: drawn larger to match the others. */
.app-page-assis .app-logo-tile img,
.app-page-assis .app-visual img {
  transform: scale(1.3);
}

.app-section {
  width: var(--container);
  margin: 0 auto;
  padding: clamp(48px, 7vw, 96px) 0;
}

.app-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.app-split h2 {
  margin-top: 14px;
  font-size: clamp(1.45rem, 2.5vw, 2.05rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.app-benefits {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-benefits li {
  position: relative;
  padding: 18px 20px 18px 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  color: var(--text-soft);
  line-height: 1.5;
}

.app-benefits li::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 20px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--app-accent);
  box-shadow: 0 0 0 4px var(--app-accent-soft);
}

.app-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.app-feature {
  position: relative;
  padding: 26px 24px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-1);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.app-feature::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 24px;
  width: 38px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--app-accent);
}

.app-feature:hover {
  border-color: var(--app-accent-line);
  transform: translateY(-2px);
}

.app-feature-number {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.app-feature h3 {
  margin: 12px 0 8px;
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

.app-feature p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
}

.app-cta {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  gap: 28px;
  align-items: center;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--app-accent-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 100% 0%, var(--app-accent-soft), transparent 55%),
    var(--surface-1);
}

.app-cta h2 {
  margin: 12px 0 10px;
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  letter-spacing: -0.04em;
}

.app-cta p {
  max-width: 54ch;
  margin: 0;
  color: var(--text-soft);
}

.app-cta-actions {
  margin-top: 0;
}

.app-others {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.app-others .cloud-product {
  text-decoration: none;
  color: inherit;
}

@media (max-width: 900px) {
  .app-hero-grid,
  .app-split,
  .app-cta {
    grid-template-columns: 1fr;
  }

  .app-visual {
    max-width: 360px;
    width: 100%;
  }
}

@media (max-width: 560px) {
  .app-logo-tile {
    width: 60px;
    height: 60px;
    border-radius: 18px;
  }

  .app-hero-actions .btn,
  .app-cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

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

  .app-feature:hover {
    transform: none;
  }
}