/* PROЩе · кейсы prosh.pro · точечная полировка твоего оригинала
   База: твоя дизайн-система (тёмный + оранжевый + Montserrat + квадрат).
   Изменено только: ритм, флюидная типографика, мягкий моушн, hover, focus. */

:root {
  --bg: #050505;
  --bg-2: #090909;
  --text: #F5F2EB;
  --muted: #9A958C;
  --border: #464646;
  --border-soft: #2a2a2a;
  --accent: #FF5A1F;
  --accent-2: #FF7A3F;
  --link: #D63D0B;
  --base: 12px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Montserrat', system-ui, -apple-system, Arial, sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--bg); }

/* фирменное начертание: «ПРОЩе» со строчной «е», не аплкейсить */
.kbrand { text-transform: none; }

a { color: var(--link); text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--accent-2); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

img { max-width: 100%; display: block; }

.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 calc(var(--base) * 2);
}

/* ---------- decorative grid guides ---------- */
.guides {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 calc(var(--base) * 2);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.guides span {
  border-left: 1px solid rgba(255, 90, 31, 0.10);
  height: 100%;
}
.guides span:last-child { border-right: 1px solid rgba(255, 90, 31, 0.10); }

.page { position: relative; z-index: 1; }

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5,5,5,.86);
  backdrop-filter: blur(8px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: calc(var(--base) * 1.6);
  padding-bottom: calc(var(--base) * 1.6);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--base);
}
.brand img { height: 34px; width: auto; }
.brand .lettering {
  font-weight: 800;
  font-size: 30px;
  letter-spacing: -0.5px;
  text-transform: none;
  color: var(--text);
  line-height: 1;
}
.site-nav {
  display: flex;
  gap: calc(var(--base) * 2);
  flex-wrap: wrap;
  align-items: center;
}
.site-nav a {
  color: var(--muted);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .6px;
  position: relative;
  padding: 4px 0;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--accent);
  transition: width .3s var(--ease);
}
.site-nav a:hover { color: var(--text); }
.site-nav a:hover::after { width: 100%; }
.site-nav a.lang {
  color: var(--text);
  border: 1px solid var(--border);
  padding: 5px 10px;
}
.site-nav a.lang::after { display: none; }
.site-nav a.lang:hover { border-color: var(--accent); background: var(--accent); color: var(--bg); }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  text-transform: uppercase;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.6px;
  padding: calc(var(--base) * 1.3) calc(var(--base) * 2.4);
  border-radius: 0;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease),
              border-color .25s var(--ease), box-shadow .3s var(--ease);
}
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -16px rgba(255,90,31,.7);
}

/* ---------- hero ---------- */
.hero {
  padding: clamp(48px, 8vw, 96px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--border);
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.4px;
  color: var(--accent);
  margin: 0 0 calc(var(--base) * 2);
}
.hero .eyebrow::before {
  content: "";
  width: 26px; height: 3px;
  background: var(--accent);
}
.hero h1 {
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(38px, 6.2vw, 68px);
  line-height: 1.02;
  letter-spacing: -1px;
  margin: 0 0 calc(var(--base) * 2.4);
  max-width: 16ch;
}
.hero .sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 calc(var(--base) * 2.4);
}
.hero .lead {
  font-size: 17px;
  color: var(--text);
  max-width: 52ch;
  margin: 0;
}
/* hero в две колонки: текст слева, статы-якорь справа */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(220px, .92fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: end;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: calc(var(--base) * 2.6);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-2px);
}
.hero-stats {
  display: grid;
  gap: calc(var(--base) * 2.2);
  align-self: end;
}
.hero-stats .stat {
  border-left: 2px solid var(--accent);
  padding-left: calc(var(--base) * 1.6);
}
.hero-stats .num {
  font-weight: 800;
  font-size: clamp(34px, 3.4vw, 46px);
  line-height: 1;
  letter-spacing: -1px;
  color: var(--text);
}
.hero-stats .label {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-top: 6px;
}
/* кликабельные статы — ведут к нужной секции */
.hero-stats a.stat {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.hero-stats a.stat:hover { border-left-color: var(--accent-2); transform: translateX(3px); }
.hero-stats a.stat:hover .num { color: var(--accent); }
.hero-stats a.stat .label::after {
  content: " ↓";
  color: var(--accent);
  opacity: 0;
  transition: opacity .25s var(--ease);
}
.hero-stats a.stat:hover .label::after { opacity: 1; }

/* приподнятая полоса для разрыва монотонности */
.section--alt { background: var(--bg-2); }

/* ---------- sections ---------- */
.section {
  padding: clamp(40px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--border);
}
.section h2 {
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.4px;
  margin: 0 0 calc(var(--base) * 1.5);
  color: var(--text);
}
.section h2::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 3px;
  background: var(--accent);
  margin-right: 12px;
  vertical-align: middle;
}
.section p { max-width: 72ch; margin: 0 0 var(--base); color: var(--text); }
.section p.muted { color: var(--muted); }

/* ---------- CTA band ---------- */
.cta {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(70% 130% at 50% 0%, rgba(255,90,31,.10), transparent 62%);
}
.cta p {
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(22px, 3.6vw, 34px);
  letter-spacing: 0.3px;
  margin: 0 0 calc(var(--base) * 2.5);
  min-height: 1.1em;
}

/* ---------- flagship grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--base) * 2);
  padding: calc(var(--base) * 1.5) 0 0;
}
.card {
  border: 1px solid var(--border);
  background: var(--bg-2);
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 20px 44px -26px rgba(255,90,31,.55);
}
.card .card-body {
  padding: calc(var(--base) * 2);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card h3 {
  font-weight: 800;
  text-transform: uppercase;
  font-size: 18px;
  letter-spacing: 0.2px;
  margin: 0 0 var(--base);
}
.card .teaser { color: var(--text); margin: 0 0 var(--base); }
.card .caption { color: var(--muted); font-size: 14px; margin: 0 0 calc(var(--base) * 2); }
.card .more {
  margin-top: auto;
  text-transform: uppercase;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.6px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.card .more .arr { transition: transform .3s var(--ease); }
.card:hover .more { color: var(--accent-2); }
.card:hover .more .arr { transform: translateX(6px); }

/* ---------- card image preview ---------- */
.card .card-img {
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s var(--ease);
}
.card:hover .card-img img { transform: scale(1.05); }

/* ---------- stats band ---------- */
.stats {
  border-bottom: 1px solid var(--border);
  padding: clamp(40px, 6vw, 72px) 0;
}
.stats .grid-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--base) * 2);
}
.stats .stat {
  border-left: 1px solid var(--accent);
  padding-left: calc(var(--base) * 1.6);
}
.stats .stat .num {
  font-weight: 800;
  font-size: clamp(44px, 6.4vw, 68px);
  line-height: 1;
  letter-spacing: -1.5px;
  color: var(--text);
}
.stats .stat.word .num { font-size: clamp(34px, 4.6vw, 52px); color: var(--accent-2); }
.stats .stat .label {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-top: calc(var(--base) * 0.8);
}

/* ---------- client ticker ---------- */
.clients .client-row {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--base) * 1) calc(var(--base) * 2.2);
  align-items: center;
}
.clients .client-row span {
  text-transform: uppercase;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.8px;
  color: var(--muted);
  white-space: nowrap;
  transition: color .25s var(--ease);
}
.clients .client-row span:hover { color: var(--text); }
.clients .client-row span::after {
  content: "·";
  margin-left: calc(var(--base) * 2.2);
  color: var(--accent);
}
.clients .client-row span:last-child::after { content: ""; margin-left: 0; }

/* ---------- dense archive grid ---------- */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 10px;
  margin-top: calc(var(--base) * 2);
}
.tile {
  position: relative;
  display: block;
  border: 1px solid var(--border);
  background: var(--bg-2);
  overflow: hidden;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
a.tile:hover { border-color: var(--accent); transform: translateY(-3px); }
.tile .tile-img {
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.tile .tile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}
a.tile:hover .tile-img img { transform: scale(1.07); }
.tile .tile-cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 24px 9px 8px;
  font-size: 10px;
  line-height: 1.3;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  background: linear-gradient(to top, rgba(0,0,0,0.92), rgba(0,0,0,0));
}
/* плитка без ссылки (конфиденциальные) */
.tile:not(a) { cursor: default; }
.tile:not(a)::before {
  content: "по запросу";
  position: absolute;
  top: 7px; right: 7px;
  z-index: 2;
  font-size: 8px;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(5,5,5,.72);
  border: 1px solid var(--border);
  padding: 2px 5px;
}
html[lang="en"] .tile:not(a)::before { content: "by request"; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: calc(var(--base) * 3) 0;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--base) calc(var(--base) * 3);
  align-items: center;
  justify-content: space-between;
}
.site-footer .tag { text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.site-footer a { color: var(--text); }
.site-footer a:hover { color: var(--accent); }

/* ---------- breadcrumb (кейс-страницы) ---------- */
.breadcrumb {
  padding-top: calc(var(--base) * 2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 700;
  color: var(--muted);
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text); }

/* ---------- inner (case) hero ---------- */
.hero--inner h1 {
  font-size: clamp(30px, 4.4vw, 54px);
  max-width: 22ch;
}
.hero--inner .sub {
  color: var(--muted);
  max-width: 58ch;
  margin-bottom: calc(var(--base) * 2.6);
}

/* ---------- video embed (16:9) ---------- */
.embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  margin-top: calc(var(--base) * 1.5);
  background: #000;
  overflow: hidden;
  transition: border-color .3s var(--ease);
}
.embed:hover { border-color: var(--accent); }
.embed iframe,
.embed video,
.embed img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: cover;
}
.embed-cap {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin: var(--base) 0 0;
}
.embed-cap a { color: var(--accent); }
.embed-cap a:hover { color: var(--accent-2); }

/* ---------- FAQ ---------- */
.faq .qa { border-top: 1px solid var(--border); padding: calc(var(--base) * 1.8) 0; }
.faq .qa:first-of-type { border-top: none; padding-top: var(--base); }
.faq .q {
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 calc(var(--base) * 0.6);
  color: var(--text);
}
.faq .a { color: var(--muted); margin: 0; max-width: 74ch; }

/* ---------- load reveal (мягкий stagger) ---------- */
.reveal { opacity: 0; transform: translateY(20px); animation: rise .8s var(--ease) forwards; }
@keyframes rise { to { opacity: 1; transform: none; } }
.d1 { animation-delay: .05s; } .d2 { animation-delay: .13s; } .d3 { animation-delay: .21s; }
.d4 { animation-delay: .29s; } .d5 { animation-delay: .37s; } .d6 { animation-delay: .45s; }

/* ---------- rotating CTA phrase ---------- */
#cta-rot-text {
  display: inline-block;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}
#cta-rot-text.is-fading { opacity: 0; transform: translateY(6px); }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .site-header .wrap { flex-direction: column; align-items: flex-start; gap: var(--base); }
  .site-nav { gap: calc(var(--base) * 1.4); }
  .hero-grid { grid-template-columns: 1fr; gap: calc(var(--base) * 3); align-items: start; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: var(--base); }
  .hero-stats .stat { padding-left: var(--base); }
  .grid { grid-template-columns: 1fr; }
  .cta p { font-size: 20px; }
  .guides { display: none; }
  .tiles { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) {
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: 1fr; gap: calc(var(--base) * 1.6); }
  /* убрать орфан-точки «·» в «С кем работали» при переносе на узких */
  .clients .client-row span::after,
  .clients .client-row span:last-child::after { content: ""; margin-left: 0; }
  .clients .client-row { gap: calc(var(--base) * 0.9) calc(var(--base) * 1.6); }
}
/* ---------- доступность ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center;
  background: rgba(5,5,5,.92); backdrop-filter: blur(6px);
  padding: clamp(16px, 4vw, 64px);
}
.lightbox.is-open { display: flex; }
.lightbox__stage { width: min(1100px, 100%); }
.lightbox__frame {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  border: 1px solid var(--border); background: #000; overflow: hidden;
}
.lightbox__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.lightbox__cap {
  margin: calc(var(--base) * 1.2) 0 0; text-align: center; color: var(--muted);
  font-size: 13px; text-transform: uppercase; letter-spacing: .6px;
}
.lightbox__close {
  position: absolute; top: 18px; right: 20px; width: 44px; height: 44px;
  background: transparent; border: 1px solid var(--border); color: var(--text);
  font-size: 24px; line-height: 1; cursor: pointer;
  transition: .25s var(--ease);
}
.lightbox__close:hover { border-color: var(--accent); background: var(--accent); color: var(--bg); }
.lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px; background: rgba(5,5,5,.5); color: var(--text);
  border: 1px solid var(--border); font-size: 28px; line-height: 1; cursor: pointer;
  transition: .25s var(--ease);
}
.lightbox__nav:hover { border-color: var(--accent); background: var(--accent); color: var(--bg); }
.lightbox__prev { left: clamp(8px, 2vw, 28px); }
.lightbox__next { right: clamp(8px, 2vw, 28px); }
.lightbox[data-single="1"] .lightbox__nav { display: none; }
@media (max-width: 640px) {
  .lightbox__nav { top: auto; bottom: 12px; transform: none; width: 46px; height: 46px; }
  .lightbox__prev { left: 28%; }
  .lightbox__next { right: 28%; }
}