/* Hallmark · macrostructure: Scroll-Story Scene (the homepage's /pack system) · pages: /platform and the channel pages
 * (/facebook, /google-ads, /real-estate) · anchor hue: UpHex blue 257° · theme: UpHex brand (locked)
 * Loaded after pack_start.css and uphex_home.css (and uphex_library.css on the channel pages, whose fan and ad cards
 * they reuse). Motion lives in app/javascript/local_business/product_story.js; every rule here is the finished state.
 */

/* ------------------------------------------------------------------ channel pages */
.channel-hero .hero__title { max-width: 13ch; }
.channel-gap { padding: var(--space-4xl) 0 var(--space-2xl); }
.channel-gap__waste { margin-top: var(--space-lg); text-align: center; color: var(--color-muted); }
.channel-gap__waste strong { color: var(--color-navy); }
.channel-why { padding: var(--space-4xl) 0; background: radial-gradient(70% 60% at 50% 40%, var(--color-navy-raised), var(--color-navy-deep) 72%); color: var(--color-on-navy); }
.channel-why__list { display: grid; gap: var(--space-md); margin-top: var(--space-2xl); }
.channel-why__item {
  display: grid; gap: var(--space-xs); align-content: start; padding: var(--space-xl) var(--space-lg); border-radius: var(--radius-card);
  background: var(--color-navy-raised); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--color-white) 10%, transparent);
}
.channel-why__title { font: 800 var(--text-xl)/1.15 var(--font-display); letter-spacing: -0.02em; }
.channel-why__body { color: var(--color-on-navy-2); }
@media (min-width: 860px) { .channel-why__list { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

/* ------------------------------------------------------------------ /platform · hero */
.platform-hero { padding-bottom: var(--space-2xl); }
.platform-hero__copy { max-width: 48rem; }
.platform-hero .kicker { margin-bottom: var(--space-md); }
.platform-hero .hero__title { max-width: 14ch; font-size: clamp(2.6rem, 5.4vw + 0.5rem, 5.25rem); }

/* ------------------------------------------------------------------ /platform · the apps */
.platform-apps { padding: var(--space-3xl) 0 var(--space-4xl); }
.platform-apps__list { display: grid; gap: var(--space-md); margin-top: var(--space-2xl); }
.platform-app {
  display: grid; gap: var(--space-xs); align-content: start; padding: var(--space-lg);
  border-radius: var(--radius-card); background: var(--color-surface); border: var(--rule-hair) solid var(--color-rule); box-shadow: var(--shadow-soft);
}
.platform-app__mark {
  display: grid; place-items: center; width: 2.5rem; height: 2.5rem; border-radius: 12px;
  background: var(--color-soft-blue); color: var(--color-blue-deep); font: 800 var(--text-lg)/1 var(--font-display);
}
.platform-app__name { margin-top: var(--space-2xs); font: 800 var(--text-lg)/1.2 var(--font-display); letter-spacing: -0.015em; }
.platform-app__body { font-size: var(--text-sm); color: var(--color-muted); }
.platform-app--more { background: transparent; border-style: dashed; box-shadow: none; }
@media (min-width: 640px) { .platform-apps__list { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1040px) { .platform-apps__list { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

/* ------------------------------------------------------------------ /platform · why it compounds (night) */
.platform-keep { padding: var(--space-4xl) 0; background: radial-gradient(70% 60% at 70% 50%, var(--color-navy-raised), var(--color-navy-deep) 72%); color: var(--color-on-navy); }
.platform-keep :focus-visible { outline-color: var(--color-focus-on-navy); }
.platform-keep__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-2xl); align-items: center; }
.platform-keep__kicker { margin-bottom: var(--space-md); color: var(--color-on-navy-2); }
.platform-keep__link { margin-top: var(--space-lg); }
.platform-keep__link a { display: inline-flex; align-items: center; min-height: var(--touch-target); font-weight: 800; color: var(--color-blue-light); text-underline-offset: 3px; }
.platform-keep__link a:hover { color: var(--color-on-navy); }
/* The client's layers stack up like floors of one building (product_story.js layersStack). */
.platform-layers { display: grid; gap: var(--space-xs); }
.platform-layer {
  display: grid; gap: 2px; padding: var(--space-md) var(--space-lg); border-radius: var(--radius-card);
  background: var(--color-navy-raised); box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--color-white) 10%, transparent);
}
.platform-layer strong { font: 800 var(--text-lg)/1.2 var(--font-display); }
.platform-layer span { color: var(--color-on-navy-2); }
.platform-layer:first-child { background: var(--color-blue-deep); }
.platform-layer:first-child span { color: color-mix(in oklab, var(--color-white) 82%, transparent); }
@media (min-width: 960px) { .platform-keep__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-3xl); } }