/* ============================================================
   АКБ Малышева — минималистичный Bauhaus
   Токены → база → компоненты. Радиус 0, теней нет, near-mono + акцент.
   ============================================================ */

:root {
  /* --- Палитра --- */
  --paper:        #FFFFFF;
  --paper-2:      #F5F4F1;   /* тёплая бумага / surface */
  --paper-3:      #EBE9E4;
  --line:         #DAD7D0;   /* тонкие границы */
  --ink:          #16150F;   /* near-black текст */
  --ink-2:        #37352E;
  --muted:        #6E6A61;   /* вторичный текст */
  --muted-2:      #9C978C;

  /* Акцент (переключается через [data-accent]) */
  --accent:       #B23A1A;   /* тёплый терракот-кирпич */
  --accent-ink:   #FFFFFF;

  /* --- Типографика --- */
  --font: "Jost", "Century Gothic", "Segoe UI", system-ui, sans-serif;
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.12rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  --step-2:  clamp(1.6rem, 1.3rem + 1.4vw, 2.4rem);
  --step-3:  clamp(2.2rem, 1.6rem + 2.9vw, 3.8rem);
  --step-4:  clamp(3rem, 1.8rem + 6vw, 7rem);

  /* --- Ритм --- */
  --s4: 4px; --s8: 8px; --s12: 12px; --s16: 16px; --s24: 24px;
  --s32: 32px; --s48: 48px; --s64: 64px; --s96: 96px; --s128: 128px;

  --edge: clamp(18px, 3.5vw, 56px);   /* внутренние поля контента */
  --maxw: 1520px;                     /* сайт центрируется по этой ширине */
  --pad: max(var(--edge), calc((100vw - var(--maxw)) / 2 + var(--edge)));

  --dur: 240ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

[data-accent="ochre"]  { --accent: #C58A1E; }
[data-accent="red"]    { --accent: #DD0100; }
[data-accent="ink"]    { --accent: #16150F; }

/* --- База --- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
/* запрет сохранения картинок на публичных страницах (не в редакторе) */
body:not(.ed) img { -webkit-user-drag: none; -khtml-user-drag: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3 { font-weight: 500; line-height: 1.02; letter-spacing: -0.02em; }

.u-mono {
  font-size: var(--step--1);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
}
.u-accent { color: var(--accent); }
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--edge); }
.section { padding-block: clamp(56px, 9vw, 128px); }

/* ============================================================
   Хедер
   ============================================================ */
.site-head {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s24);
  padding: var(--s16) var(--pad);
  color: var(--paper);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-head::before {   /* скрим для читаемости светлого текста на любом герое */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, rgba(0,0,0,.42) 0%, rgba(0,0,0,0) 100%);
  transition: opacity var(--dur) var(--ease);
}
.site-head.is-solid {
  background: var(--paper);
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.site-head.is-solid::before { opacity: 0; }
.brand {
  display: flex; align-items: baseline; gap: 10px;
  font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  font-size: var(--step--1);
}
.brand b { font-weight: 600; }
.brand .dot { width: 9px; height: 9px; background: var(--accent); display: inline-block; }
.nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 34px); }
.nav a {
  font-size: var(--step--1); letter-spacing: 0.14em; text-transform: uppercase;
  font-weight: 500; position: relative; padding-block: 4px;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.lang { display: flex; gap: 6px; align-items: center; font-weight: 500; letter-spacing: 0.1em; }
.lang button { opacity: 0.5; transition: opacity var(--dur); font-size: var(--step--1); }
.lang button.on { opacity: 1; }
.nav-cta {
  border: 1px solid currentColor; padding: 9px 18px;
  letter-spacing: 0.14em; text-transform: uppercase; font-size: var(--step--1); font-weight: 500;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.site-head.is-solid .nav-cta:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.burger { display: none; }

/* ============================================================
   Герой
   ============================================================ */
.hero { position: relative; }
.hero__frame { position: relative; overflow: hidden; height: clamp(600px, 92svh, 940px); background: var(--ink); }
.hero__frame > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.30) 0%, rgba(0,0,0,0) 34%, rgba(0,0,0,.55) 100%);
}
.hero__inner {
  position: absolute; inset: 0; z-index: 2;
  display: grid; grid-template-rows: 1fr auto;
  padding: clamp(90px,11vh,130px) clamp(24px,3vw,48px) clamp(28px,4vh,48px);
  color: var(--paper);
}
.hero__title {
  align-self: end;
  font-size: var(--step-4); font-weight: 500; letter-spacing: -0.03em; line-height: 0.94;
  max-width: 16ch; text-wrap: balance;
}
.hero__title em { font-style: normal; color: var(--paper); position: relative; }
.hero__foot {
  display: flex; align-items: end; justify-content: space-between; gap: var(--s24);
  border-top: 1px solid rgba(255,255,255,.28); padding-top: var(--s16); flex-wrap: wrap;
}
.hero__sub { max-width: 42ch; color: rgba(255,255,255,.86); font-size: var(--step-0); }
.hero__scroll { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.8); }
.hero__scroll .bar { width: 46px; height: 1px; background: currentColor; position: relative; overflow: hidden; }
.hero__scroll .bar::after { content:""; position:absolute; inset:0; background: var(--accent); transform: translateX(-100%); animation: slide 2.6s var(--ease) infinite; }
@keyframes slide { 0%{transform:translateX(-100%)} 60%,100%{transform:translateX(100%)} }

/* Ken Burns на герое */
.kb { animation: kb 18s var(--ease) both alternate infinite; }
@keyframes kb { from { transform: scale(1.06); } to { transform: scale(1.14) translateY(-1.5%); } }

/* ============================================================
   Секции — заголовки
   ============================================================ */
.head-row {
  display: flex; align-items: end; justify-content: space-between; gap: var(--s24);
  margin-bottom: var(--s48); flex-wrap: wrap;
}
.head-row h2 { font-size: var(--step-3); max-width: 18ch; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--muted); margin-bottom: var(--s16); }
.eyebrow::before { content:""; width: 28px; height: 2px; background: var(--accent); }
.link-more { display:inline-flex; align-items:center; gap:10px; }
.link-more .u-mono { position: relative; }
.link-more:hover .arrow { transform: translateX(6px); }
.arrow { transition: transform var(--dur) var(--ease); }

/* ============================================================
   Сетка проектов (асимметрия)
   ============================================================ */
.feat {
  display: grid; grid-template-columns: repeat(12, 1fr);
  gap: clamp(12px, 1.4vw, 22px);
}
.tile { position: relative; overflow: hidden; background: var(--paper-2); display: block; }
.tile__img { position: relative; overflow: hidden; }
.tile__img::after { content:""; position:absolute; inset:0; background: rgba(16,15,10,0); transition: background var(--dur) var(--ease); }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform 900ms var(--ease); }
.tile:hover img { transform: scale(1.05); }
.tile:hover .tile__img::after { background: rgba(16,15,10,.12); }
.tile__meta { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: var(--s16) 2px 0; }
.tile__name { font-size: var(--step-1); font-weight: 500; letter-spacing: -0.02em; }
.tile__tag { color: var(--muted); }
.tile__idx { position: absolute; top: 14px; left: 14px; z-index: 2; color: var(--paper); mix-blend-mode: difference; }
.tile .aspect { aspect-ratio: var(--ar, 4/3); }

/* раскладка избранного */
.feat .t-a { grid-column: span 7; }
.feat .t-b { grid-column: span 5; }
.feat .t-c { grid-column: span 4; }
.feat .t-d { grid-column: span 4; }
.feat .t-e { grid-column: span 4; }

/* сетка каталога */
.grid-all { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(12px,1.4vw,22px); }
.grid-all .tile { grid-column: span 4; }
.grid-all .tile:nth-child(6n+1) { grid-column: span 8; }
.grid-all .tile:nth-child(6n+1) .aspect { --ar: 16/9; }

/* ============================================================
   Числа / подход
   ============================================================ */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s24); border-top: 2px solid var(--ink); padding-top: var(--s32); }
.stat .n { font-size: var(--step-3); font-weight: 500; letter-spacing: -0.03em; line-height: 1; }
.stat .n span { color: var(--accent); }
.stat .l { color: var(--muted); margin-top: 8px; max-width: 22ch; }
.approach { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px,5vw,96px); align-items: start; }
.approach p.big { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; line-height: 1.18; }
.approach .steps { display: grid; gap: var(--s24); }
.step { display: grid; grid-template-columns: 48px 1fr; gap: var(--s16); padding-top: var(--s16); border-top: 1px solid var(--line); }
.step .k { color: var(--accent); font-weight: 600; letter-spacing: 0.1em; }
.step h4 { font-size: var(--step-1); font-weight: 500; }
.step p { color: var(--muted); }

/* ============================================================
   Полоса-CTA
   ============================================================ */
.cta-band { background: var(--ink); color: var(--paper); }
.cta-band .wrap { display: flex; align-items: center; justify-content: space-between; gap: var(--s32); flex-wrap: wrap; padding-block: clamp(48px,7vw,96px); }
.cta-band h2 { font-size: var(--step-3); max-width: 20ch; }
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--accent); color: var(--accent-ink);
  padding: 18px 30px; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 500; font-size: var(--step--1);
  border: 1px solid var(--accent);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--paper); border-color: rgba(255,255,255,.4); }
.btn--ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ============================================================
   Футер
   ============================================================ */
.site-foot { border-top: 1px solid var(--line); padding-block: var(--s64) var(--s32); }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--s48); }
.foot-brand { font-size: var(--step-2); font-weight: 500; letter-spacing: -0.02em; }
.foot-col h5 { color: var(--muted); margin-bottom: var(--s16); font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; font-size: var(--step--1); }
.foot-col a { display: block; padding: 6px 0; }
.foot-col a:hover { color: var(--accent); }
.foot-bottom { display: flex; justify-content: space-between; gap: var(--s16); margin-top: var(--s64); color: var(--muted-2); font-size: var(--step--1); flex-wrap: wrap; }

/* ============================================================
   Каталог — фильтр
   ============================================================ */
.page-head { padding-top: calc(var(--s128) + 24px); }
.page-head h1 { font-size: var(--step-4); letter-spacing: -0.03em; }
.filter { display: flex; gap: 10px; flex-wrap: wrap; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: var(--s16); margin-block: var(--s32); }
.chip { padding: 9px 18px; border: 1px solid var(--line); letter-spacing: 0.1em; text-transform: uppercase; font-size: var(--step--1); font-weight: 500; color: var(--muted); transition: all var(--dur) var(--ease); }
.chip:hover { color: var(--ink); border-color: var(--ink); }
.chip.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ============================================================
   Страница проекта
   ============================================================ */
.pj-hero { position: relative; }
.pj-hero__frame { position: relative; overflow: hidden; height: clamp(560px, 88svh, 900px); background: var(--ink); }
.pj-hero__frame img { width: 100%; height: 100%; object-fit: cover; }
.pj-hero__frame::after { content:""; position:absolute; inset:0; background: linear-gradient(180deg, rgba(0,0,0,.3), rgba(0,0,0,0) 40%, rgba(0,0,0,.5)); }
.pj-hero__cap { position: absolute; z-index:2; left: clamp(24px,3vw,48px); right: clamp(24px,3vw,48px); bottom: clamp(28px,4vh,48px); color: var(--paper); display:flex; justify-content: space-between; align-items:end; gap: var(--s24); flex-wrap: wrap; }
.pj-hero__cap h1 { font-size: var(--step-4); letter-spacing: -0.03em; }
.pj-intro { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(24px,5vw,96px); }
.pj-meta { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s24); align-self: start; }
.pj-meta .cell { border-top: 1px solid var(--line); padding-top: var(--s12); }
.pj-meta .cell .k { color: var(--muted); font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; }
.pj-meta .cell .v { font-size: var(--step-1); font-weight: 500; margin-top: 4px; }
.pj-desc p.lead { font-size: var(--step-2); font-weight: 400; letter-spacing: -0.01em; line-height: 1.18; margin-bottom: var(--s24); }
.pj-desc p { color: var(--ink-2); }

/* Галерея */
.gallery { display: grid; gap: clamp(14px, 2.4vw, 40px); }
.g-item { position: relative; overflow: hidden; background: var(--paper-2); }
.g-item img { width: 100%; height: 100%; object-fit: cover; will-change: transform; }
.g-item.full { grid-column: 1 / -1; }
.g-item .cap { position: absolute; left: var(--s16); bottom: var(--s16); z-index: 2; color: var(--paper); mix-blend-mode: difference; max-width: 40ch; }
.gallery.cols { grid-template-columns: repeat(12, 1fr); }
.gallery.cols .span7 { grid-column: span 7; }
.gallery.cols .span5 { grid-column: span 5; }
.gallery.cols .span6 { grid-column: span 6; }
.gallery.cols .span12 { grid-column: 1 / -1; }
.g-pan { overflow: hidden; }
.g-pan img { width: 116%; max-width: none; }

/* Самостоятельное движение кадра при появлении (НЕ привязано к скроллу) */
.g-item img { will-change: transform; }
.g-item.is-zoom img { animation: g-zoom 7000ms var(--ease) forwards; }
.g-item.is-pan  img { animation: g-pan 9000ms var(--ease) forwards; }
@keyframes g-zoom { from { transform: scale(1.002); } to { transform: scale(1.085); } }
@keyframes g-pan  { from { transform: translateX(0); } to { transform: translateX(-7%); } }

/* ============================================================
   Бенто-галерея (размер плитки = значимость кадра)
   ============================================================ */
.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: clamp(140px, 15.5vw, 220px);
  grid-auto-flow: dense;
  gap: clamp(10px, 1.1vw, 18px);
}
.b-cell { position: relative; overflow: hidden; background: var(--paper-2); }
.b-cell img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  object-position: var(--fx, 50%) var(--fy, 50%);
  transform: scale(var(--z, 1));
  transform-origin: var(--fx, 50%) var(--fy, 50%);
  will-change: transform;
}
.b-cell .idx { position: absolute; top: 12px; left: 12px; z-index: 2; color: var(--paper); mix-blend-mode: difference; }
.b-hero { grid-column: span 8; grid-row: span 2; }
.b-big  { grid-column: span 6; grid-row: span 2; }
.b-wide { grid-column: span 6; grid-row: span 1; }
.b-tall { grid-column: span 4; grid-row: span 2; }
.b-m    { grid-column: span 4; grid-row: span 1; }
.b-s    { grid-column: span 3; grid-row: span 1; }

/* самостоятельный «наезд» при появлении (учитывает базовый зум кадрирования --z) */
.b-cell.seen img { animation: b-in 6500ms var(--ease) forwards; }
@keyframes b-in {
  from { transform: scale(var(--z, 1)); }
  to   { transform: scale(calc(var(--z, 1) + 0.055)); }
}

@media (max-width: 900px) {
  .bento { grid-template-columns: repeat(6, 1fr); grid-auto-rows: clamp(130px, 24vw, 200px); }
  .b-hero, .b-big, .b-wide { grid-column: span 6; }
  .b-tall { grid-column: span 3; }
  .b-m { grid-column: span 3; }
  .b-s { grid-column: span 3; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .b-hero, .b-big, .b-wide, .b-tall, .b-m, .b-s { grid-column: span 2; grid-row: span 1; }
}

/* следующий проект */
.next-pj { position: relative; display: block; color: var(--paper); }
.next-pj__frame { position: relative; overflow: hidden; height: clamp(340px, 44svh, 540px); display: flex; align-items: end; background: var(--ink); }
.next-pj__frame img { position:absolute; inset:0; width:100%; height:100%; object-fit: cover; opacity:.72; transition: transform 1.2s var(--ease); }
.next-pj:hover .next-pj__frame img { transform: scale(1.05); }
.next-pj__frame::after { content:""; position:absolute; inset:0; background: linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.45)); }
.next-pj__cap { position: relative; z-index: 2; width: 100%; padding: clamp(24px,3vw,44px); }
.next-pj__row { display: flex; justify-content: space-between; align-items: end; gap: var(--s24); flex-wrap: wrap; margin-top: var(--s12); }

/* ============================================================
   Форма-бриф
   ============================================================ */
.brief { display:grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(24px,5vw,80px); }
.field { border-top: 1px solid var(--line); padding-top: var(--s16); margin-bottom: var(--s24); }
.field label { display:block; color: var(--muted); font-size: var(--step--1); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: var(--s12); }
.opts { display:flex; gap: 10px; flex-wrap: wrap; }
.opt { border: 1px solid var(--line); padding: 12px 18px; transition: all var(--dur) var(--ease); }
.opt:hover { border-color: var(--ink); }
.opt.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
input.txt, textarea.txt {
  width: 100%; border: 0; border-bottom: 1px solid var(--ink); background: transparent;
  padding: 12px 0; font: inherit; color: var(--ink);
}
input.txt:focus, textarea.txt:focus { outline: none; border-color: var(--accent); }
.field .hint { color: var(--muted-2); font-size: var(--step--1); margin-top: 8px; }

/* ============================================================
   Лайтбокс
   ============================================================ */
.lb { position: fixed; inset: 0; z-index: 100; background: rgba(12,11,8,.96); display: none; align-items: center; justify-content: center; padding: var(--edge); }
.lb.open { display: flex; }
.lb img { max-width: 100%; max-height: 88vh; object-fit: contain; }
.lb__close { position: absolute; top: 20px; right: 28px; color: var(--paper); font-size: 30px; line-height: 1; }
.lb__nav { position:absolute; top:50%; transform: translateY(-50%); color: var(--paper); font-size: 40px; padding: 20px; opacity:.7; }
.lb__nav:hover{opacity:1} .lb__prev{left:8px}.lb__next{right:8px}

/* ============================================================
   Анимация появления
   ============================================================ */
[data-animate] { opacity: 0; transform: translateY(26px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
[data-animate].in { opacity: 1; transform: none; }

/* Аксессор — переключатель акцента (только для макета) */
.dev-accent { position: fixed; z-index: 90; right: 16px; bottom: 16px; display:flex; gap:6px; background: var(--paper); border:1px solid var(--line); padding:6px; }
.dev-accent button { width: 22px; height: 22px; border:1px solid var(--line); }

/* ============================================================
   Адаптив
   ============================================================ */
@media (max-width: 1000px) {
  .approach, .pj-intro, .brief, .gallery.cols { grid-template-columns: 1fr; }
  .gallery.cols .span7, .gallery.cols .span5, .gallery.cols .span6 { grid-column: 1 / -1; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .feat .t-a, .feat .t-b { grid-column: span 12; }
  .feat .t-c, .feat .t-d, .feat .t-e { grid-column: span 4; }
  .grid-all .tile, .grid-all .tile:nth-child(6n+1) { grid-column: span 6; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .burger { display: block; font-size: 24px; }
  .stats, .foot-grid { grid-template-columns: 1fr; }
  .feat .t-c, .feat .t-d, .feat .t-e, .grid-all .tile, .grid-all .tile:nth-child(6n+1) { grid-column: span 12; }
  .pj-meta { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .kb { animation: none; }
  .g-item img { animation: none !important; transform: none !important; }
  * { scroll-behavior: auto; }
  [data-animate] { opacity: 1 !important; transform: none !important; transition: none; }
  .hero__scroll .bar::after { animation: none; }
}