/* «Стрічка ↔ Система»: a 3×4 profile grid that re-cuts into the chain behind it (feed-system.js).
   Cells are absolutely positioned and moved by springs (transform only); every cell's content is
   designed at 236×315 and scaled to the cell with --k. Documents are paper, reels are dark. */

.sg-head-r { display: grid; gap: 18px; justify-items: start; }
.sg-mode { background: color-mix(in oklab, var(--bg) 90%, transparent); border-color: var(--line-strong); }
.sg-mode button { font-size: 13.5px; padding: 8px 16px 8px 13px; min-height: 40px; }
.sg-ic { width: 13px; height: 13px; display: inline-block; background: currentColor; -webkit-mask: var(--m) center / contain no-repeat; mask: var(--m) center / contain no-repeat; }
.sg-ic-grid { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 13 13'%3E%3Cpath d='M0 0h3.6v3.6H0zM4.7 0h3.6v3.6H4.7zM9.4 0H13v3.6H9.4zM0 4.7h3.6v3.6H0zM4.7 4.7h3.6v3.6H4.7zM9.4 4.7H13v3.6H9.4zM0 9.4h3.6V13H0zM4.7 9.4h3.6V13H4.7zM9.4 9.4H13V13H9.4z'/%3E%3C/svg%3E"); }
.sg-ic-chain { --m: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 13 13'%3E%3Cpath d='M0 2h3v4H0zM5 2h3v4H5zM10 2h3v4h-3zM0 8h13v3H0z'/%3E%3C/svg%3E"); }

/* stage */
.sg { position: relative; display: grid; grid-template-columns: var(--side, 0px) minmax(0, 1fr); min-height: 300px; transition: height 0.85s var(--ease-out); }
.sg-cells { position: absolute; inset: 0; perspective: 1500px; perspective-origin: 60% 40%; pointer-events: none; z-index: 2; }
.sg-cell {
  position: absolute; left: 0; top: 0; width: var(--cw, 200px); height: var(--ch, 266px); padding: 0; margin: 0; border: 0;
  border-radius: 10px; overflow: hidden; background: #161618; color: inherit; text-align: left; cursor: default;
  transform-origin: 0 0; will-change: transform; pointer-events: auto; backface-visibility: hidden;
  box-shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.06);
  transition: opacity 0.6s var(--ease-out), filter 0.35s, box-shadow 0.3s;
}
.sg-reel { cursor: pointer; }
.sg.pre .sg-cell { opacity: 0; }
.sg.has-hot .sg-cell:not(:hover):not(:focus) { filter: brightness(0.62) saturate(0.75); }
.sg-cell:hover, .sg-cell:focus-visible { box-shadow: 0 30px 60px -26px rgba(0, 0, 0, 0.95), 0 0 0 1.5px var(--c); }
.sg-cell:focus-visible { outline: 2px solid var(--text); outline-offset: 3px; }
.sg-in { position: absolute; inset: 0; overflow: hidden; border-radius: inherit; }
.dc { position: absolute; left: 0; top: 0; width: 236px; height: 315px; transform: scale(var(--k, 1)); transform-origin: 0 0; overflow: hidden; display: block; }

/* stage label + kind glyph */
.sg-chip {
  position: absolute; right: 8px; top: 8px; z-index: 4; display: inline-flex; align-items: center; gap: 6px; max-width: calc(100% - 40px);
  padding: 4px 9px 4px 7px; border-radius: 999px; background: rgba(11, 11, 12, 0.84); color: #f1efea; font-size: 10px; letter-spacing: 0.04em; white-space: nowrap;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1); opacity: 0; transform: translateY(-5px); transition: opacity 0.25s, transform 0.35s var(--ease-out); pointer-events: none;
}
.sg-chip i { width: 7px; height: 7px; border-radius: 2px; flex: none; }
.sg-chip b { font-weight: 600; opacity: 0.7; }
.sg-chip span { overflow: hidden; text-overflow: ellipsis; }
.sg-cell.on .sg-chip, .sg-cell:hover .sg-chip, .sg-cell:focus-visible .sg-chip { opacity: 1; transform: none; }
.sg[data-mode='sys'] .sg-chip { font-size: 12.5px; right: 9px; top: 9px; }
.sg-glyph { position: absolute; right: 8px; top: 8px; z-index: 3; width: 17px; height: 17px; fill: none; stroke: #fff; stroke-width: 1.7; stroke-linejoin: round; stroke-linecap: round; filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.6)); opacity: 0.9; transition: opacity 0.25s; }
.sg-glyph .f { fill: #fff; stroke: none; }
.sg-doc .sg-glyph { stroke: #1b1b1d; filter: none; opacity: 0.55; }
.sg-c-frame .sg-glyph { stroke: #1b1b1d; filter: none; opacity: 0.55; }
.sg-c-analytics .sg-glyph { stroke: #fff; filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.7)); opacity: 0.85; }
.sg-cell.on .sg-glyph { opacity: 0; }

/* ---------------- reels */
.rl { background: #0e0e10; }
.rl img, .rl video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.rl-v video { opacity: 0; transition: opacity 0.3s; }
.rl-v video.on { opacity: 1; }
.rl-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 12px 11px; display: grid; gap: 2px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.78)); color: #fff; opacity: 0; transform: translateY(6px); transition: opacity 0.3s, transform 0.4s var(--ease-out); }
.rl-cap b { font-family: var(--f-mono); font-weight: 500; font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.75; }
.rl-cap span { font-weight: 700; font-size: 13.5px; line-height: 1.2; }
.sg-cell.on .rl-cap, .sg-cell:hover .rl-cap { opacity: 1; transform: none; }

/* ---------------- paper documents */
.dc-plan, .dc-shoot, .dc-script { --paper: #ece9e1; --ink: #19191b; --ink2: #6d6a62; background: var(--paper); color: var(--ink); font-family: var(--f-ui); }
.dc-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.dc-top b { font-family: var(--f-display); font-weight: 500; font-size: 11.5px; letter-spacing: -0.01em; }
.dc-top span { font-family: var(--f-mono); font-size: 6.6px; color: var(--ink2); text-transform: uppercase; letter-spacing: 0.06em; text-align: right; }

/* content plan */
.dc-plan { padding: 13px 12px 0; }
.pl-leg { display: flex; flex-wrap: wrap; gap: 3px; margin: 8px 0 0; }
.pl-leg i { font-style: normal; font-family: var(--f-mono); font-size: 6.6px; padding: 2px 6px 2px 5px; border-radius: 99px; background: color-mix(in oklab, var(--c) 20%, var(--paper)); color: var(--ink); transition: background-color 0.35s, color 0.35s; }
.pl-leg i::before { content: ''; display: inline-block; width: 4px; height: 4px; border-radius: 1px; margin-right: 4px; vertical-align: 1px; background: var(--c); }
.pl-view { position: absolute; left: 0; right: 0; top: 54px; bottom: 0; overflow: hidden; -webkit-mask: linear-gradient(transparent, #000 8%, #000 86%, transparent); mask: linear-gradient(transparent, #000 8%, #000 86%, transparent); }
.pl-roll { padding: 4px 12px 0; will-change: transform; }
.sg-cell.on .pl-roll { animation: sg-roll 30s linear infinite; }
@keyframes sg-roll { to { transform: translateY(-50%); } }
.pl-w { margin: 7px 0 3px; padding-bottom: 2px; border-bottom: 1px solid rgba(0, 0, 0, 0.14); font-family: var(--f-mono); font-size: 6.6px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink2); }
.pl-r { display: grid; grid-template-columns: 13px 5px minmax(0, 1fr) auto; gap: 5px; align-items: center; padding: 4px 4px; margin: 0 -4px; border-radius: 4px; font-size: 8.4px; line-height: 1.25; transition: background-color 0.4s, opacity 0.4s; }
.pl-r i { width: 5px; height: 14px; border-radius: 2px; background: var(--c); }
.pl-d { font-family: var(--f-mono); font-size: 6.8px; color: var(--ink2); }
.pl-t { font-weight: 600; }
.pl-f { font-family: var(--f-mono); font-size: 6.2px; color: var(--ink2); }
.dc-plan[data-hl] .pl-r { opacity: 0.32; }
.dc-plan[data-hl='m'] .pl-r[data-r='m'], .dc-plan[data-hl='t'] .pl-r[data-r='t'], .dc-plan[data-hl='s'] .pl-r[data-r='s'], .dc-plan[data-hl='p'] .pl-r[data-r='p'], .dc-plan[data-hl='l'] .pl-r[data-r='l'] { opacity: 1; background: color-mix(in oklab, var(--c, #e8b04a) 26%, transparent); }
.pl-r[data-r='m'] { --c: #e8b04a; } .pl-r[data-r='t'] { --c: #4aa8c7; } .pl-r[data-r='s'] { --c: #42b574; } .pl-r[data-r='p'] { --c: #a46ee8; } .pl-r[data-r='l'] { --c: #d0609a; }
.dc-plan[data-hl='m'] .pl-leg i[data-r='m'], .dc-plan[data-hl='t'] .pl-leg i[data-r='t'], .dc-plan[data-hl='s'] .pl-leg i[data-r='s'], .dc-plan[data-hl='p'] .pl-leg i[data-r='p'], .dc-plan[data-hl='l'] .pl-leg i[data-r='l'] { background: var(--c); }

/* reel script — pages flip up like a notepad, lines get a marker */
.dc-script { background: #cfcbc1; }
.sc-pg { position: absolute; inset: 0; padding: 13px 12px; background: var(--paper); z-index: var(--z); transform-origin: 50% 0; transition: transform 0.8s var(--ease-out), opacity 0.6s; box-shadow: 0 6px 12px -8px rgba(0, 0, 0, 0.5); }
.sc-pg.gone { transform: perspective(700px) rotateX(82deg); opacity: 0; }
.sc-pg header { display: grid; gap: 2px; padding-bottom: 6px; margin-bottom: 4px; border-bottom: 1.5px solid var(--ink); }
.sc-pg header b { font-family: var(--f-display); font-weight: 500; font-size: 10.5px; line-height: 1.2; }
.sc-pg header span { font-family: var(--f-mono); font-size: 6.6px; color: var(--ink2); text-transform: uppercase; letter-spacing: 0.06em; }
.sc-pg ol { list-style: none; margin: 0; padding: 0; }
.sc-pg li { display: grid; grid-template-columns: 17px minmax(0, 1fr); gap: 4px; padding: 3.6px 0; border-bottom: 1px dashed rgba(0, 0, 0, 0.13); font-size: 8.1px; line-height: 1.33; }
.sc-pg em { font-style: normal; font-family: var(--f-mono); font-size: 6.6px; color: var(--ink2); padding-top: 1px; }
.sc-pg u { text-decoration: none; font-family: var(--f-mono); font-size: 6.2px; letter-spacing: 0.05em; color: #7a4fc4; }
.sc-pg mark { color: inherit; font-weight: 700; background: linear-gradient(transparent 52%, #ffd84d 52%, #ffd84d 92%, transparent 92%) no-repeat 0 0 / 0% 100%; transition: background-size 0.55s var(--ease-out); padding: 0 1px; }
.sg-cell.on .sc-pg.cur mark { background-size: 100% 100%; transition-delay: calc(0.35s + var(--d) * 0.42s); }
.sc-pg footer { position: absolute; left: 12px; right: 12px; bottom: 9px; font-family: var(--f-mono); font-size: 6.2px; color: var(--ink2); text-transform: uppercase; letter-spacing: 0.06em; }

/* shoot sheet — boxes get ticked one by one */
.dc-shoot { padding: 13px 12px; }
.sh-meta { display: flex; gap: 4px; margin: 7px 0 5px; }
.sh-meta span { font-family: var(--f-mono); font-size: 6.4px; padding: 2px 6px; border-radius: 3px; background: #19191b; color: #ece9e1; letter-spacing: 0.04em; }
.dc-shoot ul { list-style: none; margin: 0; padding: 0; }
.dc-shoot li { display: grid; grid-template-columns: 10px 14px minmax(0, 1fr) auto; gap: 5px; align-items: center; padding: 4.5px 0; border-bottom: 1px dashed rgba(0, 0, 0, 0.14); font-size: 8.3px; line-height: 1.25; }
.dc-shoot li b { font-family: var(--f-mono); font-weight: 600; font-size: 7px; }
.dc-shoot li em { font-style: normal; font-family: var(--f-mono); font-size: 5.9px; text-transform: uppercase; color: var(--ink2); letter-spacing: 0.04em; }
.dc-shoot li span { transition: color 0.3s; text-decoration-line: line-through; text-decoration-color: transparent; transition: color 0.3s, text-decoration-color 0.3s; }
.cb { position: relative; width: 9px; height: 9px; border-radius: 2px; box-shadow: inset 0 0 0 1.2px var(--ink); transition: background-color 0.2s, box-shadow 0.2s; }
.cb::after { content: ''; position: absolute; left: 2.7px; top: 0.6px; width: 2.6px; height: 5.2px; border: solid #fff; border-width: 0 1.4px 1.4px 0; transform: rotate(45deg) scale(0); transition: transform 0.25s var(--ease-out); }
.dc-shoot li.ok .cb { background: #2f9a5f; box-shadow: none; }
.dc-shoot li.ok .cb::after { transform: rotate(45deg) scale(1); }
.dc-shoot li.ok span { color: var(--ink2); text-decoration-color: rgba(0, 0, 0, 0.45); }
.sh-foot { position: absolute; left: 12px; right: 12px; bottom: 10px; display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: 6.4px; color: var(--ink2); text-transform: uppercase; letter-spacing: 0.05em; }
.sh-n { color: #2f9a5f; font-weight: 600; }

/* storyboard → frame */
.dc-frame { background: #e9e5dc; }
.fr-sk, .fr-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.fr-media video { clip-path: inset(0 100% 0 0); transition: clip-path 1.25s var(--ease-out); }
.sg-cell.rev .fr-media video { clip-path: inset(0 0 0 0); }
.fr-ui { position: absolute; inset: 0; transition: opacity 0.6s 0.5s; }
.fr-safe { position: absolute; inset: 30px 16px 40px; border: 1px dashed rgba(25, 25, 27, 0.5); border-radius: 3px; }
.fr-k { position: absolute; left: 10px; top: 10px; right: 34px; font-family: var(--f-mono); font-size: 6.8px; letter-spacing: 0.05em; text-transform: uppercase; color: #19191b; }
.fr-cap { position: absolute; left: 10px; right: 10px; bottom: 22px; font-family: var(--f-ui); font-weight: 600; font-size: 8.2px; color: #19191b; }
.sg-cell.rev .fr-ui { opacity: 0; transition-delay: 0s; }
.fr-tag { position: absolute; left: 10px; bottom: 8px; display: inline-flex; gap: 4px; align-items: center; font-family: var(--f-mono); font-size: 6.4px; text-transform: uppercase; letter-spacing: 0.05em; color: #19191b; z-index: 2; }
.fr-tag i { font-style: normal; }
.fr-tag b { font-weight: 500; padding: 2px 5px; border-radius: 3px; background: rgba(25, 25, 27, 0.08); transition: background-color 0.4s, color 0.4s; }
.sg-cell.rev .fr-tag { color: #fff; }
.sg-cell.rev .fr-tag b:first-child { background: rgba(255, 255, 255, 0.14); }
.sg-cell.rev .fr-tag b:last-child { background: var(--rec); color: #0b0b0c; }

/* research: cover → three conclusions */
.dc-res { background: #232326; }
.rs-back { position: absolute; left: 34px; right: 10px; top: 22px; bottom: 26px; padding: 12px; background: #d6d1c5; border-radius: 3px; transform: rotate(5deg); display: grid; align-content: start; gap: 7px; transition: transform 0.7s var(--ease-out), opacity 0.6s; }
.rs-back span { font-family: var(--f-display); font-weight: 500; font-size: 9px; color: #2a2a2c; }
.rs-back i { height: 4px; border-radius: 2px; background: rgba(0, 0, 0, 0.16); }
.rs-back i:nth-of-type(2n) { width: 70%; }
.rs-cover {
  position: absolute; left: 14px; right: 24px; top: 16px; bottom: 30px; padding: 16px 14px 14px 18px; display: flex; flex-direction: column; gap: 8px;
  background: #ece9e1; color: #19191b; border-radius: 3px; box-shadow: inset 5px 0 0 #2f9a5f, 0 12px 24px -10px rgba(0, 0, 0, 0.7);
  transform-origin: 50% 0; transition: transform 0.8s var(--ease-out), opacity 0.6s, filter 0.6s;
}
.rs-k { font-family: var(--f-mono); font-size: 6.6px; text-transform: uppercase; letter-spacing: 0.08em; color: #2f9a5f; }
.rs-cover b { font-family: var(--f-display); font-weight: 500; font-size: 15.5px; line-height: 1.15; letter-spacing: -0.01em; }
.rs-y { font-family: var(--f-mono); font-size: 7.5px; color: #6d6a62; }
.rs-cover ul { list-style: none; margin: auto 0 0; padding: 8px 0 0; border-top: 1px solid rgba(0, 0, 0, 0.15); display: flex; gap: 5px; flex-wrap: wrap; }
.rs-cover li { font-family: var(--f-mono); font-size: 6.4px; text-transform: uppercase; letter-spacing: 0.05em; padding: 2px 6px; border-radius: 99px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.25); }
.rs-th { position: absolute; left: 10px; right: 10px; bottom: 10px; list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; }
.rs-th li { display: grid; grid-template-columns: 15px minmax(0, 1fr); gap: 1px 5px; padding: 7px 9px 7px 7px; border-radius: 6px; background: #f4f1ea; color: #19191b; box-shadow: 0 8px 16px -10px rgba(0, 0, 0, 0.8); font-size: 8.4px; line-height: 1.28; font-weight: 600;
  opacity: 0; transform: translateY(26px) scale(0.96); transition: opacity 0.45s, transform 0.6s var(--ease-out); }
.rs-th li i { grid-row: span 2; font-style: normal; font-family: var(--f-mono); font-size: 7px; color: #2f9a5f; padding-top: 1px; }
.rs-th li b { font-family: var(--f-mono); font-weight: 500; font-size: 6.6px; color: #2f9a5f; text-transform: uppercase; letter-spacing: 0.04em; }
.sg-cell.open .rs-cover { transform: translateY(-58px) scale(0.8) rotate(-2.5deg); opacity: 0.4; filter: blur(0.5px); }
.sg-cell.open .rs-back { transform: translateY(-64px) rotate(9deg); opacity: 0.5; }
.sg-cell.open .rs-th li { opacity: 1; transform: none; transition-delay: calc(0.22s + var(--d) * 0.28s); }

/* analytics: screens with static instead of numbers */
.dc-an { background: #0d0d0f; }
.an-scr { position: absolute; inset: 0; }
.an-fig { position: absolute; inset: 0; opacity: 0; transition: opacity 0.55s; }
.an-fig.cur { opacity: 1; }
.an-fig img, .an-fig canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.an-fig img { object-fit: cover; }
.an-pl { position: absolute; left: 9px; top: 9px; padding: 2px 7px; border-radius: 99px; font-size: 6.8px; letter-spacing: 0.06em; text-transform: uppercase; background: rgba(11, 11, 12, 0.82); color: #f1efea; }
.an-tag { display: none; }

/* the feed I run — a mini profile that keeps scrolling */
.dc-feed { background: #0b0b0c; color: #f1efea; }
.fd-top { position: absolute; left: 0; right: 0; top: 0; height: 36px; display: flex; align-items: center; gap: 8px; padding: 0 10px; z-index: 2; background: linear-gradient(#0b0b0c 70%, rgba(11, 11, 12, 0)); }
.fd-av { display: inline-flex; }
.fd-av i { width: 17px; height: 17px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-family: var(--f-mono); font-size: 5.6px; font-weight: 600; color: #0b0b0c; box-shadow: 0 0 0 1.5px #0b0b0c; }
.fd-av i + i { margin-left: -5px; }
.fd-av i:nth-child(1) { background: #f5c400; } .fd-av i:nth-child(2) { background: #a46ee8; } .fd-av i:nth-child(3) { background: #ff453a; }
.fd-top b { font-size: 8.6px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fd-view { position: absolute; left: 0; right: 0; top: 30px; bottom: 0; overflow: hidden; padding: 0 3px; }
.fd-roll { display: block; will-change: transform; }
.fd-roll img { display: block; width: 100%; height: auto; }

/* ---------------- side panel (feed view, desktop) */
.sg-side { grid-column: 1; align-self: start; position: sticky; top: 104px; display: none; padding-right: 32px; transition: opacity 0.45s, transform 0.6s var(--ease-out); }
.sg.desk .sg-side { display: block; }
.sg[data-mode='sys'] .sg-side { opacity: 0; transform: translateX(-24px); pointer-events: none; }
.sg-prof { display: flex; align-items: center; gap: 14px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.sg-av { width: 54px; height: 54px; border-radius: 50%; padding: 2.5px; background: conic-gradient(from 210deg, #ff453a, #e8b04a, #42b574, #4aa8c7, #a46ee8, #ff453a); flex: none; }
.sg-av i { display: grid; place-items: center; width: 100%; height: 100%; border-radius: 50%; background: var(--bg); box-shadow: inset 0 0 0 3px var(--bg); }
.sg-av i::before { content: ''; width: 14px; height: 14px; border-radius: 50%; background: var(--rec); box-shadow: 0 0 14px var(--rec); }
.sg-prof-t { display: grid; gap: 3px; }
.sg-prof-t b { font-weight: 500; font-size: 14px; }
.sg-prof-t span { color: var(--muted); font-size: 13.5px; }
.sg-insp { padding: 26px 0 22px; min-height: 230px; }
.sg-insp-k { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.sg-insp-k i { width: 9px; height: 9px; border-radius: 3px; background: var(--rec); transition: background-color 0.3s; }
.sg-insp h3 { margin: 0 0 12px; font-family: var(--f-display); font-weight: var(--display-w); letter-spacing: var(--display-ls); font-size: clamp(24px, 2.3vw, 34px); line-height: 1.08; text-wrap: balance; }
.sg-insp-d { margin: 0; color: var(--muted); font-size: 15.5px; line-height: 1.5; max-width: 34ch; }
.sg-chain { list-style: none; margin: 0; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 2px; }
.sg-chain li { position: relative; display: flex; align-items: center; gap: 10px; padding: 5px 0 5px 0; font-size: 12px; color: var(--muted); letter-spacing: 0.03em; transition: color 0.25s; }
.sg-chain li i { width: 8px; height: 8px; border-radius: 2px; background: var(--c); opacity: 0.55; transition: opacity 0.25s, transform 0.3s var(--ease-out); }
.sg-chain li b { font-weight: 500; opacity: 0.6; }
.sg-chain li + li::before { content: ''; position: absolute; left: 3.5px; top: -6px; height: 9px; border-left: 1px solid var(--line-strong); }
.sg-chain li.hot { color: var(--text); }
.sg-chain li.hot i { opacity: 1; transform: scale(1.35); }

/* ---------------- the system layer (tracks, stage heads, playhead) */
.sg-sys { position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.5s; z-index: 1; }
.sg[data-mode='sys'] .sg-sys { opacity: 1; transition-delay: 0.2s; }
.sg-band { position: absolute; left: 0; right: 0; top: calc(var(--shead) - 9px); height: calc(var(--sh) + 18px); border-radius: 10px; background: rgba(255, 255, 255, 0.022); box-shadow: inset 0 0 0 1px var(--line); }
.sg-band[data-k='1'] { top: calc(var(--shead) + var(--sh) + var(--sgy) - 9px); }
.sg-band span { position: absolute; left: 12px; top: 12px; width: calc(var(--slane) - 18px); font-size: 10.5px; letter-spacing: 0.06em; color: var(--muted); line-height: 1.35; text-transform: uppercase; }
.sg-heads { position: absolute; left: 0; top: 0; margin: 0; padding: 0; list-style: none; }
.sg-heads li { position: absolute; left: 0; top: 4px; height: 32px; display: flex; align-items: center; gap: 7px; padding: 0 9px; border-radius: 6px; font-size: 11.5px; letter-spacing: 0.03em; color: var(--muted); white-space: nowrap;
  background: color-mix(in oklab, var(--c) 12%, transparent); box-shadow: inset 0 2px 0 var(--c); transition: background-color 0.3s, color 0.3s; }
.sg-heads li b { font-weight: 500; opacity: 0.65; }
.sg-heads li span { overflow: hidden; text-overflow: ellipsis; }
.sg-heads li::after { content: '→'; position: absolute; right: calc(var(--sgx) * -0.5 - 5px); color: var(--muted); font-size: 11px; }
.sg-heads li:last-child::after { content: none; }
.sg-heads li.cur { background: color-mix(in oklab, var(--c) 34%, transparent); color: var(--text); }
.sg-ph { position: absolute; left: 0; top: 40px; bottom: 0; width: 0; z-index: 3; }
.sg-ph i { position: absolute; left: -1px; top: 0; bottom: -6px; width: 2px; background: var(--rec); box-shadow: 0 0 8px var(--rec); opacity: 0.85; }
.sg-ph i::before { content: ''; position: absolute; left: -5px; top: -2px; width: 12px; height: 12px; background: var(--rec); clip-path: polygon(0 0, 100% 0, 100% 60%, 50% 100%, 0 60%); }
.sg-sys .sg-ph { z-index: 0; }

.sg-hint { margin: 20px 0 0; font-size: 11px; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.sg[data-mode='sys'] + .sg-hint { opacity: 0.7; }

/* ---------------- phones: a plain two-column grid (no re-cut) */
.sg.flat { display: block; height: auto !important; min-height: 0; }
.sg.flat .sg-side, .sg.flat .sg-sys { display: none; }
.sg.flat .sg-cells { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; perspective: none; }
.sg.flat .sg-cell { position: relative; width: auto; height: auto; aspect-ratio: 3 / 4; transform: none !important; opacity: 1; }
@media (max-width: 759px) {
  .sg-mode { display: none; }
  .sg-head-r { gap: 0; }
}
@media (hover: none) { .sg-hint { display: none; } }

@media (prefers-reduced-motion: reduce) {
  .sg { transition: none; }
  .sg-cell, .sg-chip, .rl-cap, .sc-pg, .rs-cover, .rs-back, .rs-th li, .an-fig, .fr-media video { transition: none !important; }
  .sc-pg.cur mark, .sc-pg:first-child mark { background-size: 100% 100%; }
  .sg-cell:hover .rs-th li { opacity: 1; transform: none; }
  .sg-cell:hover .rs-cover { opacity: 0.4; transform: translateY(-58px) scale(0.8); }
}