/* ==========================================================================
   ТАЙКАЙ ПАРТС — русский сайт
   Палитра взята с площадки: сталь контейнера, синий тент, фанера,
   жёлто-чёрная разметка пандуса.
   ========================================================================== */

:root {
  --ink:        #12171b;
  --ink-soft:   #2b3339;
  --steel:      #737f88;
  --steel-pale: #dde1e2;
  --paper:      #f0f2f1;
  --white:      #ffffff;
  --tarp:       #1550a8;
  --tarp-deep:  #0e3a7c;
  --hazard:     #e9b41c;
  --ply:        #a9714a;

  --f-display: "Oswald", "Arial Narrow", sans-serif;
  --f-body:    "Golos Text", -apple-system, "Segoe UI", sans-serif;
  --f-mono:    "IBM Plex Mono", "Courier New", monospace;

  --gut: clamp(1.25rem, 4vw, 3rem);
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--tarp); }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--hazard);
  outline-offset: 3px;
}

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gut); }
.narrow { max-width: 760px; }

/* --- Типографика ------------------------------------------------------- */

h1, h2, h3, .display {
  font-family: var(--f-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: 1.04;
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 6.2vw, 4.6rem); }
h2 { font-size: clamp(1.75rem, 3.8vw, 2.9rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); letter-spacing: .02em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.lead { font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--ink-soft); }

.eyebrow {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 1.1rem;
}

/* --- Шапка ------------------------------------------------------------- */

.site-head {
  position: sticky; top: 0; z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid #000;
}
.site-head .wrap {
  display: flex; align-items: center; gap: 1.5rem;
  min-height: 60px; flex-wrap: wrap;
}
.brand {
  font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .09em; font-size: 1.05rem; color: var(--white);
  text-decoration: none; margin-right: auto; white-space: nowrap;
}
.brand span { color: var(--steel); font-weight: 300; }

.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; padding: .35rem 0 .7rem; }
.site-nav a {
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--steel-pale); text-decoration: none;
  padding-bottom: 2px; border-bottom: 1px solid transparent;
}
.site-nav a:hover { color: var(--white); border-bottom-color: var(--hazard); }
.site-nav a[aria-current="page"] { color: var(--hazard); }

@media (min-width: 800px) {
  .site-head .wrap { flex-wrap: nowrap; }
  .site-nav { padding: 0; }
}

/* --- Герой ------------------------------------------------------------- */

.hero { position: relative; background: var(--ink); overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .42; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(18,23,27,.94) 0%, rgba(18,23,27,.66) 55%, rgba(18,23,27,.3) 100%);
}
.hero .wrap { position: relative; z-index: 2; padding-block: clamp(4rem, 12vw, 8.5rem); }
.hero h1 { color: var(--white); max-width: 16ch; }
.hero h1 em { font-style: normal; color: var(--hazard); }
.hero .lead { color: #c9d1d5; max-width: 52ch; margin-top: 1.6rem; }
.hero .eyebrow { color: var(--steel-pale); }

.hero-facts {
  display: flex; flex-wrap: wrap; gap: 0 2.4rem;
  margin-top: 2.6rem; padding-top: 1.6rem;
  border-top: 1px solid rgba(255,255,255,.18);
}
.hero-facts div { padding-block: .5rem; }
.hero-facts b {
  display: block; font-family: var(--f-display); font-weight: 500;
  font-size: 1.5rem; color: var(--white); letter-spacing: .01em;
}
.hero-facts span {
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--steel);
}

/* --- Кнопки ------------------------------------------------------------ */

.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.2rem; }
.btn {
  display: inline-block; font-family: var(--f-mono); font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase; text-decoration: none;
  padding: .95rem 1.7rem; border: 1px solid transparent;
  transition: background .18s, color .18s, border-color .18s;
}
.btn-primary { background: var(--hazard); color: var(--ink); }
.btn-primary:hover { background: var(--white); }
.btn-ghost { border-color: rgba(255,255,255,.4); color: var(--white); }
.btn-ghost:hover { border-color: var(--hazard); color: var(--hazard); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--tarp); }

/* --- Полосатый разделитель (разметка пандуса) -------------------------- */

.hazard-rule {
  height: 8px;
  background: repeating-linear-gradient(
    -45deg, var(--hazard) 0 12px, var(--ink) 12px 24px
  );
}

/* --- Секции ------------------------------------------------------------ */

.band { padding-block: clamp(3.4rem, 8vw, 6rem); }
.band-dark { background: var(--ink); color: var(--steel-pale); }
.band-dark h2, .band-dark h3 { color: var(--white); }
.band-dark .lead { color: #b8c2c7; }
.band-steel { background: var(--steel-pale); }

.band-head { max-width: 62ch; margin-bottom: clamp(2rem, 4vw, 3rem); }

/* --- Бирка: фирменный элемент ------------------------------------------ */

.tag {
  background: var(--white);
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(18,23,27,.1);
  display: flex; flex-direction: column;
}
.tag-top {
  display: flex; align-items: stretch;
  border-bottom: 1px solid var(--ink);
}
.tag-code {
  font-family: var(--f-mono); font-size: .66rem; letter-spacing: .1em;
  color: var(--ink-soft); padding: .5rem .7rem; flex: 1;
  display: flex; align-items: center; gap: .55rem;
}
.tag-bars {
  display: block; width: 46px; height: 15px; flex: none;
  background: repeating-linear-gradient(
    90deg, var(--ink) 0 1px, transparent 1px 3px,
    var(--ink) 3px 5px, transparent 5px 6px,
    var(--ink) 6px 7px, transparent 7px 10px
  );
}
.tag-cell {
  font-family: var(--f-mono); font-weight: 600; font-size: .72rem;
  letter-spacing: .08em; background: var(--ink); color: var(--white);
  padding: .5rem .8rem; display: flex; align-items: center; flex: none;
}
.tag-body { padding: 1.35rem 1.4rem 1.5rem; flex: 1; }
.tag-body h3 { margin-bottom: .6rem; }
.tag-body p { font-size: .95rem; color: var(--ink-soft); }
.tag-id {
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .12em;
  color: var(--steel); border-top: 1px dashed var(--steel);
  padding: .55rem 1.4rem; text-transform: uppercase;
}

.tag-grid {
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* --- Ступени ----------------------------------------------------------- */

.steps { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); } }

.step {
  background: var(--white); border: 1px solid var(--steel-pale);
  border-top: 5px solid var(--tarp);
  padding: 1.9rem 1.6rem 2rem; display: flex; flex-direction: column;
}
.step-mark {
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--tarp); margin-bottom: 1rem;
}
.step h3 { margin-bottom: .8rem; }
.step p { font-size: .95rem; color: var(--ink-soft); }
.step ul { margin: .9rem 0 0; padding-left: 1.05rem; font-size: .93rem; color: var(--ink-soft); }
.step li { margin-bottom: .35rem; }
.step-note {
  margin-top: auto; padding-top: 1.2rem;
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--steel);
}

/* --- Технологическая цепочка ------------------------------------------- */

.chain { border-top: 1px solid rgba(255,255,255,.16); }
.chain-item {
  display: grid; gap: .4rem 2rem; padding: 1.5rem 0;
  border-bottom: 1px solid rgba(255,255,255,.16);
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .chain-item { grid-template-columns: 4rem 15rem 1fr; align-items: baseline; }
}
.chain-num {
  font-family: var(--f-mono); font-size: .8rem; color: var(--hazard);
  letter-spacing: .1em;
}
.chain-item h3 { font-size: 1.12rem; }
.chain-item p { font-size: .95rem; color: #b0bbc1; margin: 0; }

/* --- Фотосетка --------------------------------------------------------- */

.shots { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.shot { margin: 0; background: var(--ink); }
.shot img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.shot figcaption {
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .08em;
  color: var(--steel); padding: .6rem .1rem 0; background: transparent;
}
.band-dark .shot figcaption { color: var(--steel); }
.shot-wide { grid-column: 1 / -1; }
.shot-wide img { aspect-ratio: 16 / 9; }

/* --- Раскладка «фото + текст» ------------------------------------------ */

.split { display: grid; gap: clamp(1.6rem, 4vw, 3.2rem); align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1.05fr 1fr; } }
.split-flip .split-media { order: -1; }
@media (min-width: 900px) { .split-flip .split-media { order: 0; } }
.split-media img { width: 100%; }

/* --- Два столбца «мы / вы» --------------------------------------------- */

.duo { display: grid; gap: 1.4rem; }
@media (min-width: 760px) { .duo { grid-template-columns: 1fr 1fr; } }
.duo-col { background: var(--white); padding: 1.8rem 1.7rem 2rem; border: 1px solid var(--steel-pale); }
.duo-col.is-accent { background: var(--ink); color: var(--steel-pale); border-color: var(--ink); }
.duo-col.is-accent h3 { color: var(--hazard); }
.duo-col h3 { margin-bottom: 1.1rem; }
.duo-col ul { margin: 0; padding-left: 1.1rem; font-size: .96rem; }
.duo-col li { margin-bottom: .5rem; }

/* --- Партнёры ---------------------------------------------------------- */

.partners { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.partner {
  background: var(--white); border: 1px solid var(--steel-pale);
  padding: 1.3rem 1.4rem;
}
.partner b { display: block; font-family: var(--f-display); text-transform: uppercase; font-size: 1.05rem; }
.partner span { font-family: var(--f-mono); font-size: .7rem; letter-spacing: .1em; color: var(--steel); text-transform: uppercase; }

/* --- Таблица фактов ---------------------------------------------------- */

.facts { width: 100%; border-collapse: collapse; font-size: .96rem; }
.facts th, .facts td { text-align: left; padding: .85rem 0; border-bottom: 1px solid var(--steel-pale); vertical-align: top; }
.facts th {
  font-family: var(--f-mono); font-weight: 400; font-size: .72rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--steel);
  width: 15rem; padding-right: 1.5rem;
}

/* --- Призыв ------------------------------------------------------------ */

.cta { background: var(--tarp); color: var(--white); }
.cta h2 { color: var(--white); }
.cta .lead { color: #d3e1f5; }
.cta .btn-primary:hover { background: var(--ink); color: var(--white); }

/* --- Контакты ---------------------------------------------------------- */

.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { padding: 1rem 0; border-bottom: 1px solid var(--steel-pale); }
.contact-list span {
  display: block; font-family: var(--f-mono); font-size: .7rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--steel);
  margin-bottom: .25rem;
}
.contact-list a, .contact-list b { font-size: 1.12rem; font-weight: 500; }

/* --- Подвал ------------------------------------------------------------ */

.site-foot { background: var(--ink); color: var(--steel); padding-block: 3rem 2.4rem; }
.site-foot a { color: var(--steel-pale); text-decoration: none; }
.site-foot a:hover { color: var(--hazard); }
.foot-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.foot-grid h4 {
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--white); margin: 0 0 .9rem; font-weight: 400;
}
.foot-grid ul { list-style: none; margin: 0; padding: 0; font-size: .92rem; }
.foot-grid li { margin-bottom: .45rem; }
.foot-base {
  margin-top: 2.6rem; padding-top: 1.4rem; border-top: 1px solid rgba(255,255,255,.14);
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .08em; color: #5d686f;
}

/* --- Служебное --------------------------------------------------------- */

.todo {
  background: var(--hazard); color: var(--ink); font-family: var(--f-mono);
  font-size: .72rem; letter-spacing: .06em; padding: .12rem .4rem;
}