/* SUN·Day case study — page-specific layer on top of site.css.
   Story: ultra-wide screen → venue, one key visual → four chapter colors → four chapters on stage.
   --ch / --chd carry the active chapter's color pair (set by case-sunday.js). */
.sd { --ch: #5FCBFF; --chd: #01215A; --sd-ink: #05061A; }
.sd-c1 { --ch: #FF7302; --chd: #010A35; }
.sd-c2 { --ch: #5FCBFF; --chd: #01215A; }
.sd-c3 { --ch: #2DEEFF; --chd: #0D103D; }
.sd-c4 { --ch: #AAFFD7; --chd: #001539; }
.sd .s-deep { --bg: var(--sd-ink); --fg: var(--paper); --muted: rgba(239, 239, 239, .64); --rule: rgba(239, 239, 239, .13); --raise: #0E0F2A; --accent: var(--violet-2); background: var(--bg); color: var(--fg); }

/* ---------- 1. hero: from the screen to the venue ---------- */
.sd-hero { position: relative; height: 100svh; min-height: 560px; }
.sd-hero.is-scrub { height: 260vh; }
.sd-hero__pin { position: sticky; top: 0; height: 100svh; min-height: 560px; overflow: hidden; background: #000; }
.sd-hero__media { position: absolute; left: 50%; top: 50%; width: max(100vw, calc(100svh * 1.59)); aspect-ratio: 1814 / 1141; transform: translate(-50%, -50%); }
.sd-hero__frame { position: absolute; inset: 0; transform-origin: 50% 46.7%; will-change: transform, clip-path; }
.sd-hero__frame img { width: 100%; height: 100%; object-fit: cover; }
.sd-hero__shade { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(0,0,0,.72) 0%, rgba(0,0,0,.1) 38%, rgba(0,0,0,.05) 62%, rgba(0,0,0,.78) 100%); }
.sd-hero__top { position: absolute; left: 0; right: 0; top: clamp(96px, 13vh, 150px); z-index: 2; display: grid; gap: 18px; }
.sd-hero__title { font-size: clamp(2.3rem, 4.8vw, 5.2rem); line-height: .98; letter-spacing: -.035em; font-weight: 600; font-variation-settings: "wdth" 106; max-width: 13em; }
.sd-hero__bottom { position: absolute; left: 0; right: 0; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); z-index: 2; }
.sd-meta { display: flex; flex-wrap: wrap; gap: 10px 34px; align-items: baseline; padding-top: 18px; border-top: 1px solid rgba(239, 239, 239, .18); }
.sd-meta span { display: grid; gap: 2px; }
.sd-meta b { font-family: var(--f-display); font-size: clamp(1rem, 1.5vw, 1.35rem); font-weight: 800; }
.sd-meta small { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(239, 239, 239, .6); }
.sd-hero__caption { position: absolute; right: var(--gutter); bottom: 120px; z-index: 2; max-width: 22em; font-size: .92rem; color: rgba(239, 239, 239, .8); opacity: 0; }
.sd-hero__cue { position: absolute; right: var(--gutter); bottom: 34px; z-index: 2; }
@media (max-width: 700px) { .sd-hero__caption { display: none; } .sd-meta { gap: 10px 22px; } .sd-hero__cue { display: none; } }

/* ---------- 2. overview ---------- */
.sd-overview { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 120px); align-items: start; }
@media (max-width: 900px) { .sd-overview { grid-template-columns: 1fr; } }
.sd-overview .statement { font-size: clamp(1.7rem, 3.2vw, 3rem); }
.sd-figs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: clamp(56px, 7vw, 110px); border-top: 1px solid var(--rule); }
.sd-figs__group { grid-column: span 3; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sd-figs__group--event { grid-column: span 2; grid-template-columns: repeat(2, minmax(0, 1fr)); border-left: 1px solid var(--rule); padding-left: 24px; }
.sd-figs__label { grid-column: 1 / -1; padding: 16px 0 6px; }
.sd-fig { display: grid; gap: 6px; padding: 10px 20px 0 0; }
.sd-fig b { font-family: var(--f-display); font-size: clamp(2rem, 4.2vw, 4.2rem); line-height: 1; letter-spacing: -.02em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sd-fig > span { color: var(--muted); font-size: .92rem; }
@media (max-width: 900px) {
  .sd-figs { grid-template-columns: 1fr; }
  .sd-figs__group, .sd-figs__group--event { grid-column: auto; border-left: 0; padding-left: 0; }
  .sd-figs__group--event { border-top: 1px solid var(--rule); margin-top: 24px; }
}
@media (max-width: 520px) { .sd-figs__group { grid-template-columns: 1fr 1fr; row-gap: 18px; } }

/* ---------- 3. event + key visual ---------- */
.sd-event { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 96px); align-items: center; }
@media (max-width: 900px) { .sd-event { grid-template-columns: 1fr; } }
.sd-kvcard { position: relative; aspect-ratio: 1600 / 1083; border-radius: 0 0 var(--arc) 0; overflow: hidden; box-shadow: 0 40px 120px -40px rgba(151, 95, 244, .55); }
.sd-kvcard img { width: 100%; height: 100%; object-fit: cover; }
.sd-bubble { position: absolute; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle at 32% 28%, rgba(255,255,255,.95), rgba(255,255,255,.2) 22%, transparent 42%),
              conic-gradient(from 200deg, #ffb36b, #ff7bd3, #8e7bff, #5fcbff, #aaffd7, #ffb36b);
  opacity: .82; mix-blend-mode: screen; filter: saturate(1.1); animation: bob 7s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translate3d(0, 0, 0); } 50% { transform: translate3d(0, -14px, 0); } }

/* ---------- 4. challenge: four chapters ---------- */
.sd-chapters { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(10px, 1.4vw, 20px); margin-top: clamp(40px, 5vw, 72px); }
.sd-chap {
  position: relative; display: grid; gap: 14px; align-content: start; min-height: 300px; padding: 26px 24px 30px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--chd) 70%, #000) 0%, var(--chd) 100%);
  border-radius: 0 0 28px 0; overflow: hidden; isolation: isolate; color: var(--paper);
  transition: transform .6s var(--ease);
}
.sd-chap::before { content: ""; position: absolute; inset: auto -30% -60% -30%; height: 90%; z-index: -1; background: radial-gradient(closest-side, var(--ch), transparent); opacity: .28; transition: opacity .6s var(--ease), transform .8s var(--ease); }
.sd-chap:hover { transform: translateY(-6px); }
.sd-chap:hover::before { opacity: .55; transform: translateY(-14%); }
.sd-chap__n { font-family: var(--f-display); font-size: clamp(2.4rem, 4vw, 3.6rem); line-height: 1; color: var(--ch); }
.sd-chap__name { font-size: clamp(1.15rem, 1.5vw, 1.4rem); font-weight: 600; line-height: 1.15; letter-spacing: -.01em; }
.sd-chap__talk { color: rgba(239, 239, 239, .7); font-size: .92rem; line-height: 1.45; }
.sd-chap__chip { margin-top: auto; display: inline-flex; align-items: center; gap: 10px; font-family: var(--f-mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: rgba(239, 239, 239, .8); }
.sd-chap__chip i { width: 14px; height: 14px; background: var(--ch); box-shadow: 0 0 18px var(--ch); }
@media (max-width: 1000px) { .sd-chapters { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .sd-chapters { grid-template-columns: 1fr; } .sd-chap { min-height: 0; } }

/* ---------- 5. approach: colors from the key visual ---------- */
.sd-kv { position: relative; margin-top: clamp(40px, 5vw, 72px); }
.sd-kv__banner { position: relative; aspect-ratio: 1470 / 305; border-radius: 6px; overflow: visible; }
.sd-kv__banner img { width: 100%; height: 100%; object-fit: cover; border-radius: 6px; box-shadow: 0 30px 90px -30px rgba(151, 95, 244, .6); }
.sd-pick { position: absolute; left: calc(var(--x) * 100%); top: calc(var(--y) * 100%); width: clamp(20px, 2vw, 30px); aspect-ratio: 1; transform: translate(-50%, -50%); border-radius: 50%; background: var(--ch); box-shadow: 0 0 0 3px #fff, 0 10px 30px rgba(0,0,0,.35); display: grid; place-items: center; font-family: var(--f-mono); font-size: .66rem; font-weight: 500; color: #05061A; transition: transform .5s var(--ease); }
.sd-pick::after { content: ""; position: absolute; inset: -10px; border-radius: 50%; border: 1.5px solid #fff; opacity: 0; animation: ping 2.4s var(--ease) infinite; animation-delay: var(--d, 0s); }
@keyframes ping { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(1.8); opacity: 0; } }
.sd-pick.is-hot { transform: translate(-50%, -50%) scale(1.35); }
.sd-swatches { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(10px, 1.4vw, 20px); margin-top: clamp(28px, 3vw, 48px); }
.sd-swatch { display: grid; grid-template-rows: auto auto; border-radius: 0 0 22px 0; overflow: hidden; background: var(--chd); cursor: default; transition: transform .5s var(--ease); }
.sd-swatch:hover { transform: translateY(-6px); }
.sd-swatch__main { position: relative; min-height: 150px; padding: 18px 18px 16px; background: var(--ch); color: #05061A; display: grid; align-content: space-between; gap: 18px; }
.sd-swatch__main b { font-size: 1.12rem; font-weight: 600; letter-spacing: -.01em; }
.sd-swatch__main small, .sd-swatch__dark small { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; }
.sd-swatch__no { position: absolute; right: 16px; top: 14px; font-family: var(--f-mono); font-size: .7rem; }
.sd-swatch__chap { padding-right: 30px; }
.sd-swatch__dark { padding: 16px 18px 18px; display: grid; gap: 4px; color: rgba(239, 239, 239, .86); }
.sd-swatch__dark span { font-size: .92rem; }
@media (max-width: 900px) { .sd-swatches { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- 6. chapter player ---------- */
.sd-player { position: relative; margin-top: clamp(40px, 5vw, 72px); transition: --ch .6s; }
.sd-tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.sd-tab { position: relative; text-align: left; display: grid; gap: 4px; padding: 14px 0 16px; color: rgba(239, 239, 239, .5); transition: color .4s var(--ease); }
.sd-tab::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: rgba(239, 239, 239, .16); }
.sd-tab i { position: absolute; left: 0; top: 0; height: 2px; width: 100%; background: var(--tc); transform-origin: left; transform: scaleX(0); }
.sd-tab b { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em; font-weight: 500; }
.sd-tab span { font-weight: 600; font-size: .98rem; }
.sd-tab.is-on { color: var(--paper); }
.sd-tab.is-on b { color: var(--tc); }
.sd-tab.is-done i { transform: scaleX(1); }
@media (max-width: 700px) { .sd-tab span { display: none; } }

.sd-stage { position: relative; margin-top: 26px; padding-bottom: 14%; }
.sd-stage__glow { position: absolute; left: 4%; right: 4%; top: 6%; aspect-ratio: 1600 / 333; filter: blur(46px) saturate(1.5); opacity: .55; transform: scale(1.06); pointer-events: none; }
.sd-stage__glow img { width: 100%; height: 100%; object-fit: cover; }
.sd-screen { position: relative; aspect-ratio: 1600 / 333; overflow: hidden; border-radius: 4px; background: #01030c;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 0 60px -10px color-mix(in srgb, var(--ch) 60%, transparent); transition: box-shadow .8s var(--ease); }
.sd-screen img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.04); transition: opacity .9s var(--ease), transform 4s linear; }
.sd-screen img.is-on { opacity: 1; transform: scale(1); }
.sd-screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(0,0,0,.08) 0 1px, transparent 1px 3px); mix-blend-mode: multiply; }
.sd-stage__floor { position: absolute; left: 0; right: 0; bottom: 0; height: 14%; overflow: hidden; pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 80%); mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 80%); }
.sd-stage__floor img { width: 100%; aspect-ratio: 1600 / 333; object-fit: cover; transform: scaleY(-1); filter: blur(3px); opacity: .6; }
.sd-stage__beams { position: absolute; inset: -12% 0 auto 0; height: 30%; pointer-events: none; opacity: .5;
  background: repeating-linear-gradient(90deg, transparent 0 7%, color-mix(in srgb, var(--ch) 30%, transparent) 7% 7.3%, transparent 7.3% 9%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000); mask-image: linear-gradient(180deg, transparent, #000); }
.sd-player__foot { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: start; margin-top: 8px; }
.sd-player__info { display: grid; gap: 10px; max-width: 46em; }
.sd-player__chapter { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ch); transition: color .6s; }
.sd-player__name { font-size: clamp(1.4rem, 2.4vw, 2.2rem); font-weight: 600; letter-spacing: -.02em; line-height: 1.1; }
.sd-player__talk { color: rgba(239, 239, 239, .7); }
.sd-player__ctrl { display: flex; gap: 8px; align-items: center; }
.sd-ctrl { width: 46px; height: 46px; border-radius: 0 0 14px 0; box-shadow: inset 0 0 0 1px rgba(239, 239, 239, .2); display: grid; place-items: center; transition: background .3s, color .3s; }
.sd-ctrl:hover { background: var(--ch); color: #05061A; }
.sd-ctrl svg { width: 18px; height: 18px; }
.sd-dots { display: flex; gap: 6px; margin-right: 10px; }
.sd-dots i { width: 18px; height: 3px; background: rgba(239, 239, 239, .2); transition: background .4s, width .4s; }
.sd-dots i.is-on { background: var(--ch); width: 30px; }
@media (max-width: 700px) { .sd-player__foot { grid-template-columns: 1fr; } }

/* ---------- 7. chapters on stage (stacked) ---------- */
.sd-stack { display: grid; gap: 22vh; margin-top: clamp(40px, 5vw, 72px); }
@media (max-width: 700px) { .sd-stack { gap: 16px; } }
.sd-stack__card { margin: 0; position: sticky; top: calc(90px + var(--i) * 26px); height: min(76vh, 760px); border-radius: 0 0 var(--arc) 0; overflow: hidden; background: #000; transform-origin: 50% 0; }
.sd-stack__card img { width: 100%; height: 100%; object-fit: cover; }
.sd-stack__card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(0,0,0,.75)); }
.sd-stack__label { position: absolute; left: clamp(18px, 3vw, 40px); bottom: clamp(18px, 3vw, 36px); z-index: 2; display: grid; gap: 8px; color: var(--paper); }
.sd-stack__label small { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ch); }
.sd-stack__label b { font-size: clamp(1.4rem, 2.6vw, 2.4rem); font-weight: 600; letter-spacing: -.02em; }
.sd-stack__bar { position: absolute; left: 0; right: 0; top: 0; height: 4px; background: var(--ch); z-index: 2; box-shadow: 0 0 30px var(--ch); }
@media (max-width: 700px) { .sd-stack__card { position: relative; top: 0; height: auto; aspect-ratio: 4 / 3; } }

/* ---------- 8. on the day ---------- */
.sd-live { position: relative; }
.sd-live__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(10px, 1.4vw, 20px); align-items: start; }
.sd-live__col { display: grid; gap: clamp(10px, 1.4vw, 20px); }
.sd-live__col figure { margin: 0; overflow: hidden; background: #0E0F2A; }
.sd-live__col img { width: 100%; height: auto; }
.sd-live__col:nth-child(2) { margin-top: 18vh; }
.sd-live__col:nth-child(3) { margin-top: 6vh; }
.sd-live__head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: end; margin-bottom: clamp(40px, 5vw, 80px); }
.sd-live__figs { display: flex; gap: clamp(24px, 4vw, 64px); }
.sd-live__figs .sd-fig b { font-size: clamp(2.2rem, 5vw, 5rem); }
@media (max-width: 900px) { .sd-live__head { grid-template-columns: 1fr; } .sd-live__grid { grid-template-columns: 1fr 1fr; } .sd-live__col:nth-child(3) { display: none; } .sd-live__col:nth-child(2) { margin-top: 10vh; } }

/* ---------- 9. decisions with mini visuals ---------- */
.sd-dec { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 2vw, 28px); margin-top: clamp(36px, 4vw, 64px); }
.sd-dec__item { display: grid; gap: 16px; align-content: start; }
.sd-dec__viz { aspect-ratio: 16 / 9; border-radius: 0 0 24px 0; background: #05061A; display: grid; place-items: center; overflow: hidden; position: relative; }
.sd-dec__item p { color: var(--muted); }
.viz-dots { display: flex; gap: 14px; }
.viz-dots i { width: clamp(26px, 3vw, 42px); aspect-ratio: 1; border-radius: 50%; background: var(--c); box-shadow: 0 0 24px var(--c); animation: bob 3.6s ease-in-out infinite; animation-delay: calc(var(--k) * .25s); }
.viz-dark { position: absolute; inset: 18% 10%; display: grid; grid-template-columns: repeat(4, 1fr); border-radius: 4px; overflow: hidden; }
.viz-dark i { background: var(--c); position: relative; }
.viz-dark i::after { content: ""; position: absolute; left: 12%; right: 12%; bottom: 14%; height: 4px; background: var(--h); box-shadow: 0 0 12px var(--h); }
.viz-grid { position: absolute; inset: 22% 8%; border: 1px solid rgba(239,239,239,.25); display: grid; grid-template-columns: 1.2fr 2fr; }
.viz-grid > span:first-child { border-right: 1px solid rgba(239,239,239,.18); display: grid; align-content: center; gap: 6px; padding: 0 12%; }
.viz-grid > span:first-child i { height: 6px; background: rgba(239,239,239,.75); }
.viz-grid > span:first-child i:nth-child(2) { width: 70%; background: rgba(239,239,239,.35); height: 4px; }
.viz-grid > span:last-child { display: flex; align-items: center; justify-content: space-around; }
.viz-grid > span:last-child i { width: 18%; aspect-ratio: 1; border-radius: 50%; border: 2px solid var(--ch); box-shadow: 0 0 14px var(--ch); }
@media (max-width: 900px) { .sd-dec { grid-template-columns: 1fr; } }

/* ---------- 10. specs ---------- */
.sd-specs { border-top: 1px solid var(--rule); }
.sd-specs__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--rule); }
.sd-specs__row dt { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.sd-specs__row dd { font-weight: 500; }
.sd-specs__row dd .type-cn { font-weight: 700; }
@media (max-width: 600px) { .sd-specs__row { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- 12. 120 slides wall ---------- */
.sd-wall { position: relative; overflow: hidden; padding-block: clamp(80px, 10vw, 150px); }
.sd-wall__count { position: absolute; inset: 0; z-index: 3; display: grid; place-items: center; pointer-events: none; text-align: center; }
.sd-wall__count b { font-family: var(--f-display); font-size: clamp(6rem, 22vw, 20rem); line-height: .8; color: transparent; -webkit-text-stroke: 2px rgba(250, 250, 252, .9); text-shadow: 0 0 60px rgba(0,0,0,.6); }
.sd-wall__count span { display: block; margin-top: 14px; font-family: var(--f-mono); font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--paper); background: rgba(5, 6, 26, .7); padding: .5em .9em; }
.sd-wall .ledwall { opacity: .55; }
.sd-wall .ledwall__group img { height: clamp(90px, 11vw, 170px); }