/* The film's cases as a band of playing cards, for any page on the course's /styles.css.
   A page puts <div data-cases-mount></div> where the band goes and loads /upsells/cases.js.
   Only band, card, chip and player classes live here, so nothing on the host page changes. */

[data-cases-mount] { display: block; min-block-size: 42rem; background: oklch(0.165 0.008 255); }
.case[hidden] { display: none; }

/* the cases band: always dark, like the film it plays */
.band {
  --band-bg: oklch(0.165 0.008 255);
  --band-surface: oklch(0.215 0.01 255);
  --band-line: oklch(0.32 0.012 255);
  --band-text: oklch(0.95 0.005 255);
  --band-text-2: oklch(0.74 0.012 255);
  --band-accent: oklch(0.60 0.17 255);
  background: var(--band-bg);
  color: var(--band-text);
  border-top: 0;
  padding-block: var(--sp-8);
  color-scheme: dark;
}
.band h2 { color: var(--band-text); margin: 0; }
.band-head { display: flex; align-items: end; justify-content: space-between; gap: var(--sp-4); margin-bottom: var(--sp-5); }
.band-tools { display: flex; gap: var(--sp-2); }
.row-nav { display: none; gap: var(--sp-2); }
@media (hover: hover) and (min-width: 720px) { .row-nav { display: flex; } }
.nav-btn {
  inline-size: 2.75rem; block-size: 2.75rem; display: grid; place-items: center;
  border-radius: 999px; border: 1px solid var(--band-line); background: transparent; color: var(--band-text);
  cursor: pointer; transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-btn svg { inline-size: 1rem; block-size: 1rem; }
.nav-btn:hover { background: var(--band-surface); border-color: var(--band-text-2); }
.nav-btn:disabled { opacity: .35; cursor: default; }
.nav-btn:focus-visible { outline: 2px solid var(--band-text); outline-offset: 2px; border-radius: 999px; }
.nav-btn .when-paused, .nav-btn[aria-pressed="true"] .when-playing { display: none; }
.nav-btn[aria-pressed="true"] .when-paused { display: block; }

.cases {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: var(--sp-4);
  overflow-x: auto; overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory; scroll-padding-inline: max(var(--sp-4), calc((100vw - 72rem) / 2 + var(--sp-6)));
  padding-inline: max(var(--sp-4), calc((100vw - 72rem) / 2 + var(--sp-6)));
  padding-block: var(--sp-1) var(--sp-3);
  scrollbar-width: none;
}
.cases::-webkit-scrollbar { display: none; }
@media (max-width: 639px) { .cases { scroll-padding-inline: var(--sp-4); padding-inline: var(--sp-4); } }
.case { flex: none; inline-size: min(78vw, 17.5rem); scroll-snap-align: start; }

.case-btn {
  position: relative; display: block; inline-size: 100%; aspect-ratio: 3 / 4;
  padding: 0; border: 1px solid var(--band-line); border-radius: var(--radius-lg); overflow: hidden;
  background: var(--band-surface); color: var(--band-text); font: inherit; text-align: left; cursor: pointer;
}
.case-btn:focus-visible { outline: 2px solid var(--band-text); outline-offset: 3px; border-radius: var(--radius-lg); }
.case-loop { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; object-fit: cover; transition: transform 400ms var(--ease); }
.case-btn::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top, oklch(0.13 0.01 255 / .96) 0%, oklch(0.13 0.01 255 / .88) 30%, oklch(0.13 0.01 255 / .2) 58%, transparent 72%),
              linear-gradient(to bottom, oklch(0.13 0.01 255 / .45), transparent 22%);
}
.case-pill {
  position: absolute; z-index: 1; top: var(--sp-3); left: var(--sp-3);
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-1) var(--sp-3); border-radius: 999px;
  background: oklch(0.15 0.01 255 / .66); border: 1px solid oklch(1 0 0 / .14);
  font-size: var(--step--1); line-height: 1.5; font-variant-numeric: tabular-nums;
}
.case-pill svg { inline-size: .625rem; block-size: .625rem; }
.case-play {
  position: absolute; z-index: 1; top: 38%; left: 50%; translate: -50% -50%;
  inline-size: 3.5rem; block-size: 3.5rem; display: grid; place-items: center; border-radius: 999px;
  background: var(--band-accent); color: oklch(0.99 0 0); opacity: 0; scale: .9;
  transition: opacity var(--dur) var(--ease), scale var(--dur) var(--ease);
}
.case-play svg { inline-size: 1.5rem; block-size: 1.5rem; margin-left: 3px; }
.case-btn:hover .case-play, .case-btn:focus-visible .case-play { opacity: 1; scale: 1; }
@media (hover: hover) { .case-btn:hover .case-loop { transform: scale(1.03); } }
@media (hover: none) { .case-play { opacity: .9; scale: 1; inline-size: 3rem; block-size: 3rem; } }

.case-body { position: absolute; z-index: 1; inset: auto 0 0 0; display: grid; gap: var(--sp-1); padding: var(--sp-5) var(--sp-4) var(--sp-4); }
.case-title { font-size: var(--step-1); font-weight: var(--w-strong); line-height: 1.3; letter-spacing: -0.01em; }
.case-cat { font-size: var(--step--1); line-height: 1.5; letter-spacing: 0.06em; text-transform: uppercase; color: var(--band-text-2); }
.case-nums {
  display: grid; grid-template-columns: 1fr 1fr; margin-top: var(--sp-3); padding-top: var(--sp-3);
  border-top: 1px solid oklch(1 0 0 / .16);
}
.case-nums > span { display: grid; gap: var(--sp-1); align-content: start; min-inline-size: 0; }
.case-nums > span + span { padding-left: var(--sp-3); border-left: 1px solid oklch(1 0 0 / .16); }
.case-nums > span:first-child { padding-right: var(--sp-3); }
.case-nums b { font-size: var(--step-2); line-height: 1.1; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.case-nums small { font-size: var(--step--1); line-height: 1.35; color: var(--band-text-2); min-block-size: 2.7em; }

.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-2); margin-top: var(--sp-6); }
.chip {
  min-block-size: 2.75rem; padding: 0 var(--sp-4); border-radius: 999px;
  border: 1px solid var(--band-line); background: transparent; color: var(--band-text);
  font: inherit; font-size: var(--step--1); font-weight: var(--w-strong); cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.chip span { margin-left: var(--sp-1); color: var(--band-text-2); font-weight: var(--w-body); font-variant-numeric: tabular-nums; }
.chip:hover { border-color: var(--band-text-2); }
.chip[aria-pressed="true"] { background: var(--band-text); border-color: var(--band-text); color: var(--band-bg); }
.chip[aria-pressed="true"] span { color: oklch(0.45 0.015 255); }
.chip:focus-visible { outline: 2px solid var(--band-text); outline-offset: 2px; border-radius: 999px; }

/* the player */
.player {
  inline-size: min(100vw - 2rem, 64rem); max-block-size: calc(100vh - 2rem); padding: 0;
  border: 1px solid oklch(0.32 0.012 255); border-radius: var(--radius-lg); overflow: hidden;
  background: oklch(0.13 0.01 255); color: oklch(0.95 0.005 255); color-scheme: dark;
}
.player::backdrop { background: oklch(0.1 0.01 255 / .78); }
.player-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4); padding: var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-5); }
.player-head h3 { margin: 0; font-size: var(--step-0); font-weight: var(--w-strong); }
.player-close {
  inline-size: 2.75rem; block-size: 2.75rem; display: grid; place-items: center; border: 0; border-radius: 999px;
  background: transparent; color: inherit; cursor: pointer;
}
.player-close svg { inline-size: 1rem; block-size: 1rem; }
.player-close:hover { background: oklch(0.25 0.01 255); }
.player-close:focus-visible { outline: 2px solid oklch(0.95 0.005 255); outline-offset: -2px; }
.player video { display: block; inline-size: 100%; aspect-ratio: 16 / 9; background: #000; }

@media (prefers-reduced-motion: reduce) {
  .case-loop { transition: none; }
  .case-btn:hover .case-loop { transform: none; }
}