/* Кейс РДВ, круг 4 (23.10.2026): история вместо шаблона - экран школы, цифры, путь ученика, плитки */
.c4 { --red: #E40008; }
.c4 .crumbs { padding-top: 26px; }

/* первый экран */
.c4-hero { position: relative; padding-top: 36px; }
.c4-client { display: flex; align-items: center; gap: 14px; }
.c4-client .lg { width: 52px; height: 52px; border-radius: 14px; background: #fff; display: grid; place-items: center; flex: none; }
.c4-client .lg img { width: 40px; height: 40px; }
.c4-client b { display: block; font: 500 20px/1 var(--f-head); letter-spacing: .06em; text-transform: uppercase; color: var(--cream); }
.c4-client div span { display: block; font: 400 12px/1 var(--f-mono); color: var(--muted); letter-spacing: .08em; margin-top: 8px; }
.c4-client .since { margin-left: 18px; display: inline-flex; align-items: center; gap: 10px; font: 500 12px/1 var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--gold); border: 1px solid rgba(201, 163, 91, .35); padding: 10px 16px; border-radius: 999px; }
.c4-client .since i { width: 7px; height: 7px; border-radius: 50%; background: #5BD27A; box-shadow: 0 0 0 4px rgba(91, 210, 122, .16); }
.c4-hero h1 { font-size: 112px; line-height: .9; margin-top: 44px; max-width: 1180px; }
.c4-hero h1 .hand { display: block; font-size: 64px; line-height: 1; margin: 18px 0 0 6px; transform: rotate(-2deg); transform-origin: left; }
.c4-sub { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-top: 44px; align-items: start; }
.c4-sub .lead { font-size: 19px; color: var(--cream-2); }
.c4-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.c4-chips span { font-size: 14px; color: var(--cream); padding: 10px 16px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255, 255, 255, .02); }

/* сцена с экранами школы */
.c4-stage { position: relative; height: 760px; margin-top: 60px; overflow: hidden; }
.c4-stage .glow { position: absolute; inset: 0; background:
  radial-gradient(520px 380px at 34% 58%, rgba(228, 0, 8, .30), transparent 70%),
  radial-gradient(620px 420px at 70% 40%, rgba(201, 163, 91, .22), transparent 70%); }
.c4-stage::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 200px; background: linear-gradient(transparent, var(--bg)); z-index: 4; }
.win { border-radius: 16px; overflow: hidden; border: 1px solid var(--line-2); background: var(--bg-3); box-shadow: 0 60px 120px rgba(0, 0, 0, .65); }
.win .bar { height: 32px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: #24211B; }
.win .bar i { width: 10px; height: 10px; border-radius: 50%; background: #3A362E; }
.win .bar span { margin-left: 12px; font: 400 11.5px/1 var(--f-mono); color: var(--muted); background: #18160F; padding: 6px 14px; border-radius: 999px; }
.win img { display: block; width: 100%; }
.c4-stage .win.main { position: absolute; left: 50%; top: 40px; width: 1040px; transform: translateX(-50%) perspective(2200px) rotateX(9deg); transform-origin: top center; z-index: 2; }
.c4-stage .win.back { position: absolute; left: 4%; top: 10px; width: 620px; transform: rotate(-5deg); opacity: .55; filter: saturate(.8); z-index: 1; }
.c4-stage .phone { position: absolute; right: 9%; top: 150px; width: 250px; transform: rotate(4deg); z-index: 3; }
.c4-stage .phone img { display: block; width: 100%; }

/* результат: три цифры с маленькими графиками */
.c4-res { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-2); border-radius: 28px; overflow: hidden; margin-top: -60px; position: relative; z-index: 5; background: linear-gradient(180deg, #17150F, var(--bg-2)); }
.c4-res > div { padding: 40px 40px 36px; display: grid; grid-template-columns: 1fr 120px; grid-template-areas: "v viz" "p p" "s s"; align-items: end; }
.c4-res > div + div { border-left: 1px solid var(--line); }
.c4-res .v { grid-area: v; font: 500 92px/.9 var(--f-head); background: linear-gradient(180deg, #F6DFA6 10%, #B8924B 95%); -webkit-background-clip: text; background-clip: text; color: transparent; white-space: nowrap; }
.c4-res p { grid-area: p; color: var(--cream); font-size: 16px; line-height: 1.45; margin-top: 22px; }
.c4-res small { grid-area: s; font: 400 10.5px/1.4 var(--f-mono); color: var(--muted); letter-spacing: .06em; margin-top: 10px; }
.viz { grid-area: viz; height: 80px; justify-self: end; }
.viz.bars { display: flex; align-items: flex-end; gap: 30px; padding-right: 8px; }
.c4-start .head > .num:last-child { display: flex; gap: 0; }
.c4-bento .wide { grid-column: span 2; display: grid; grid-template-columns: 40px 1fr; column-gap: 22px; align-content: center; min-height: 0; }
.c4-bento .wide svg { grid-row: span 2; }
.c4-bento .wide h3 { margin-top: 0; }
.viz.bars i { position: relative; width: 26px; border-radius: 6px 6px 2px 2px; background: #3A362E; }
.viz.bars i.on { background: linear-gradient(180deg, var(--gold-2), var(--gold-deep)); box-shadow: 0 0 24px rgba(201, 163, 91, .35); }
.viz.bars i.zero { background: #5A5347; }
.viz.bars em { position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%); font: 400 9.5px/1 var(--f-mono); font-style: normal; color: var(--muted); white-space: nowrap; }
.viz.serp { display: grid; gap: 6px; width: 96px; align-content: end; }
.viz.serp i { height: 6px; border-radius: 3px; background: #3A362E; }
.viz.serp i.on { background: var(--gold); width: 100%; }
.viz.serp i:nth-child(odd) { width: 78%; }

/* с чего начали */
.c4-start .big { font: 400 46px/1.22 var(--f-text); color: var(--cream); max-width: 1120px; letter-spacing: -.01em; }
.c4-start .big em { font-style: normal; color: var(--gold); }
.c4-pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 60px; }
.c4-pains > div { padding: 28px 28px 30px; border-radius: 20px; border: 1px solid var(--line); background: rgba(228, 0, 8, .035); }
.c4-pains span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: rgba(228, 0, 8, .14); color: #FF6B5E; font-size: 13px; }
.c4-pains h3 { font-size: 26px; margin-top: 22px; }
.c4-pains p { font-size: 15.5px; color: var(--cream-2); margin-top: 10px; }

/* путь ученика */
.c4-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.c4-flow::before { content: ""; position: absolute; left: 20px; right: 20px; top: 21px; height: 2px; background: linear-gradient(90deg, var(--gold-deep), var(--gold-2), var(--gold-deep)); opacity: .7; }
.c4-flow .st { position: relative; }
.c4-flow .dot { position: relative; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--bg); border: 2px solid var(--gold); color: var(--gold-2); font: 500 18px/1 var(--f-head); }
.c4-flow h3 { font-size: 26px; margin-top: 24px; }
.c4-flow p { font-size: 15px; color: var(--cream-2); margin-top: 10px; min-height: 66px; }
.c4-flow .th { margin-top: 20px; aspect-ratio: 4 / 3; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-2); background: var(--bg-3); box-shadow: 0 30px 60px rgba(0, 0, 0, .45); }
.c4-flow .th img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.c4-flow .th.pay { display: grid; place-content: center; justify-items: center; text-align: center; gap: 6px; background: radial-gradient(circle at 50% 35%, rgba(201, 163, 91, .18), transparent 70%), var(--bg-3); color: var(--gold-2); }
.c4-flow .th.pay svg { width: 72px; height: 72px; margin-bottom: 8px; }
.c4-flow .th.pay b { font: 500 18px/1 var(--f-head); text-transform: uppercase; color: var(--cream); letter-spacing: .04em; }
.c4-flow .th.pay span { font-size: 12.5px; color: var(--muted); }

/* что сделали: плитки */
.c4-bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(230px, auto); gap: 16px; }
.c4-bento .b { padding: 30px 28px; border-radius: 22px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, .01)); }
.c4-bento .b svg { width: 40px; height: 40px; color: var(--gold); }
.c4-bento .b h3 { font-size: 24px; line-height: 1.05; margin-top: 26px; }
.c4-bento .b p { font-size: 15px; color: var(--cream-2); margin-top: 12px; }
.c4-bento .big { grid-column: span 2; grid-row: span 2; padding: 0; overflow: hidden; display: flex; flex-direction: column; border-color: rgba(201, 163, 91, .3); }
.c4-bento .big .pic { flex: 1; min-height: 300px; position: relative; overflow: hidden; }
.c4-bento .big .pic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 30%; }
.c4-bento .big .pic::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 50%, #15130F); }
.c4-bento .big .tx { padding: 0 34px 34px; }
.c4-bento .big h3 { font-size: 40px; margin-top: 0; }
.c4-bento .big p { font-size: 17px; max-width: 520px; }

/* экраны: плитки */
.c4-gal { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.c4-gal figure { margin: 0; border-radius: 24px; border: 1px solid var(--line); background: var(--bg-2); padding: 22px; display: flex; flex-direction: column; gap: 18px; overflow: hidden; }
.c4-gal .win { box-shadow: 0 30px 60px rgba(0, 0, 0, .45); }
.c4-gal .g1 { grid-column: 1 / 3; }
.c4-gal .g2 { justify-content: space-between; align-items: center; text-align: center; background: radial-gradient(circle at 50% 30%, rgba(228, 0, 8, .16), transparent 65%), var(--bg-2); }
.c4-gal .g2 .phone { width: 56%; margin: 6px auto 0; }
.c4-gal .g2 .phone img { display: block; width: 100%; }
.c4-gal figcaption { font-size: 15px; color: var(--cream-2); line-height: 1.45; }
.c4-gal figcaption b { display: block; font: 500 22px/1.1 var(--f-head); text-transform: uppercase; color: var(--cream); margin-bottom: 6px; letter-spacing: .02em; }

/* отзыв */
.c4-quote { position: relative; padding: 70px 80px 60px; border-radius: 32px; border: 1px solid rgba(201, 163, 91, .25); background: radial-gradient(600px 300px at 10% 0%, rgba(201, 163, 91, .12), transparent 70%), var(--bg-2); }
.c4-quote .q { font: 400 160px/0.6 Georgia, serif; color: var(--gold); height: 60px; }
.c4-quote p { font: 400 34px/1.3 var(--f-text); color: var(--cream); max-width: 980px; margin-top: 10px; }
.c4-quote .who { display: flex; align-items: center; gap: 14px; margin-top: 36px; }
.c4-quote .who .lg { width: 48px; height: 48px; border-radius: 50%; background: #fff; display: grid; place-items: center; }
.c4-quote .who .lg img { width: 34px; height: 34px; }
.c4-quote .who b { display: block; font: 500 18px/1 var(--f-head); text-transform: uppercase; color: var(--cream); letter-spacing: .04em; }
.c4-quote .who span { font-size: 14px; color: var(--muted); }
.c4-quote .mk { position: absolute; right: 40px; top: 40px; }

@media (max-width: 767px) {
  .c4-hero { padding-top: 22px; }
  .c4-client { flex-wrap: wrap; gap: 12px; }
  .c4-client .lg { width: 44px; height: 44px; border-radius: 12px; }
  .c4-client .lg img { width: 34px; height: 34px; }
  .c4-client b { font-size: 17px; }
  .c4-client .since { margin-left: 0; font-size: 10.5px; padding: 8px 12px; }
  .c4-hero h1 { font-size: 46px; line-height: .95; margin-top: 26px; }
  .c4-hero h1 .hand { font-size: 34px; margin-top: 12px; }
  .c4-sub { grid-template-columns: 1fr; gap: 22px; margin-top: 22px; }
  .c4-sub .lead { font-size: 16px; }
  .c4-chips { gap: 8px; }
  .c4-chips span { font-size: 13px; padding: 8px 12px; }
  .c4-stage { height: 330px; margin-top: 34px; }
  .c4-stage .win.back { display: none; }
  .c4-stage .win.main { width: 330px; top: 20px; transform: translateX(-56%) perspective(1200px) rotateX(6deg); border-radius: 10px; }
  .win .bar { height: 22px; gap: 5px; padding: 0 10px; }
  .win .bar i { width: 7px; height: 7px; }
  .win .bar span { font-size: 9px; padding: 4px 10px; margin-left: 6px; }
  .c4-stage .phone { width: 118px; right: 12px; top: 70px; border-width: 4px; border-radius: 20px; }
  .c4-stage::after { height: 120px; }
  .c4-res { grid-template-columns: 1fr; margin-top: -40px; border-radius: 22px; }
  .c4-res > div { padding: 26px 22px 24px; grid-template-columns: 1fr 96px; }
  .c4-res > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .c4-res .v { font-size: 64px; }
  .c4-res p { font-size: 15px; margin-top: 16px; }
  .viz { height: 60px; }
  .viz.bars i { width: 20px; }
  .c4-start .big { font-size: 26px; }
  .c4-pains { grid-template-columns: 1fr; gap: 12px; margin-top: 34px; }
  .c4-pains > div { padding: 22px; display: grid; grid-template-columns: 34px 1fr; column-gap: 16px; }
  .c4-pains span { grid-row: span 2; }
  .c4-pains h3 { font-size: 22px; margin-top: 4px; }
  .c4-pains p { font-size: 15px; margin-top: 6px; }
  .c4-flow { grid-template-columns: 1fr; gap: 34px; padding-left: 0; }
  .c4-flow::before { left: 21px; right: auto; top: 22px; bottom: 30px; width: 2px; height: auto; background: linear-gradient(180deg, var(--gold-deep), var(--gold-2), var(--gold-deep)); }
  .c4-flow .st { display: grid; grid-template-columns: 44px 1fr; column-gap: 18px; }
  .c4-flow .dot { grid-row: span 3; }
  .c4-flow h3 { font-size: 24px; margin-top: 8px; }
  .c4-flow p { min-height: 0; margin-top: 6px; }
  .c4-flow .th { margin-top: 14px; aspect-ratio: 16 / 10; }
  .c4-bento { grid-template-columns: 1fr 1fr; grid-auto-rows: auto; gap: 12px; }
  .c4-bento .big { grid-column: 1 / -1; grid-row: auto; }
  .c4-bento .big .pic { min-height: 200px; }
  .c4-bento .big .tx { padding: 0 22px 24px; }
  .c4-bento .big h3 { font-size: 30px; }
  .c4-bento .big p { font-size: 15px; }
  .c4-bento .b { padding: 20px 18px; border-radius: 18px; }
  .c4-bento .b svg { width: 32px; height: 32px; }
  .c4-bento .b h3 { font-size: 18px; margin-top: 16px; }
  .c4-bento .b p { font-size: 13.5px; margin-top: 8px; }
  .c4-bento .wide { grid-column: 1 / -1; grid-template-columns: 32px 1fr; column-gap: 16px; }
  .c4-gal .g2 .phone { width: 62%; }
  .c4-gal { grid-template-columns: 1fr; gap: 12px; }
  .c4-gal .g1, .c4-gal .g2 { grid-column: auto; grid-row: auto; }
  .c4-gal figure { padding: 14px; border-radius: 18px; gap: 14px; }
  .c4-gal .g2 .phone { width: 62%; }
  .c4-gal figcaption b { font-size: 19px; }
  .c4-quote { padding: 70px 22px 30px; border-radius: 22px; }
  .c4-quote .q { font-size: 110px; height: 40px; }
  .c4-quote p { font-size: 22px; }
  .c4-quote .mk { left: 22px; right: 22px; top: 22px; }
}
.c4-gal .g1 .win img { aspect-ratio: 1440 / 700; object-fit: cover; object-position: top; }
@media (max-width: 767px) {
  .c4-hero h1 { font-size: 42px; }
  .c4-chips span { font-size: 12.5px; padding: 7px 11px; }
  .c4-gal .g5 { display: none; }
}

/* круг 5: дракон без белой плашки, крупно */
.c4-client .drg { width: 92px; height: 92px; flex: none; filter: drop-shadow(0 8px 30px rgba(228, 0, 8, .35)); }
.c4-quote .who .lg { background: none; width: 60px; height: 60px; }
.c4-quote .who .lg img { width: 60px; height: 60px; }
@media (max-width: 767px) { .c4-client .drg { width: 68px; height: 68px; } }
.c4-quote .who .drg { width: 60px; height: 60px; flex: none; filter: drop-shadow(0 6px 20px rgba(228, 0, 8, .35)); }
.c4-client .drg { width: 84px; height: 84px; }
@media (max-width: 767px) { .c4-client .drg { width: 60px; height: 60px; } }

/* Круг 6: первый экран кейса на телефоне - телефон целиком и две всплывашки */
.c4-note { display: none; }
@media (max-width: 767px) {
  .c4-stage { height: 560px; margin-top: 30px; }
  .c4-stage .glow { background:
    radial-gradient(200px 260px at 50% 48%, rgba(228, 0, 8, .34), transparent 72%),
    radial-gradient(180px 200px at 78% 30%, rgba(201, 163, 91, .22), transparent 72%); }
  .c4-stage .win.main { display: none; }
  .c4-stage .phone { width: 232px; left: 50%; right: auto; top: 24px; transform: translateX(-50%) rotate(-2deg); border-width: 6px; border-radius: 30px; }
  .c4-stage::after { height: 110px; }
  .c4-note { display: flex; align-items: center; gap: 10px; position: absolute; z-index: 5; padding: 10px 14px 10px 10px; border-radius: 16px;
    background: rgba(28, 26, 21, .92); border: 1px solid var(--line-2); box-shadow: 0 18px 40px rgba(0, 0, 0, .55); backdrop-filter: blur(8px); }
  .c4-note i { flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font: 600 15px/1 var(--f-text); font-style: normal; color: #fff; background: #E40008; }
  .c4-note.n2 i { background: var(--gold); color: var(--ink); }
  .c4-note b { display: block; font: 600 13.5px/1.2 var(--f-text); color: var(--cream); }
  .c4-note span { display: block; font: 400 11.5px/1.3 var(--f-text); color: var(--muted); margin-top: 2px; }
  .c4-note.n1 { left: 2px; top: 246px; }
  .c4-note.n2 { right: 2px; top: 398px; }
}
/* «80 → 2 103» шире обычной цифры: без столбиков и мельче, чтобы не вылезать из ячейки */
.c4-res > div:has(.v.long) { grid-template-columns: minmax(0, 1fr); grid-template-areas: "v" "p" "s"; }
.c4-res > div:has(.v.long) .viz { display: none; }
.c4-res .v.long { font-size: 60px; }
@media (min-width: 768px) and (max-width: 1366px) { .c4-res .v.long { font-size: 44px; } }
@media (max-width: 767px) { .c4-res .v.long { font-size: 50px; } }