/* ROBOTIKS — общий стиль */
:root {
  --bg: #0a0a0a;
  --bg-2: #111;
  --text: #f5f2ea;
  --muted: #b8b3a8;
  --accent: #00FF88;
  --accent-2: #00C2FF;
  --btn: #4A3530;
  --btn-hover: #5c443d;
  --gold: #c9a86c;
  --gold-2: #e8d5a3;
  --radius: 12px;
  --header-h: 72px;
  --z-stars: 1;
  --z-content: 10;
  --z-header: 100;
  --z-modal: 200;
  --z-chat: 180;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 88px 0; position: relative; z-index: var(--z-content); }
.section-title {
  font-family: Montserrat, sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.muted { color: var(--muted); }

.bg-skin-1 {
  background:
    linear-gradient(180deg, rgba(8,8,8,.5), rgba(8,8,8,.62)),
    url("../img/skin-1.jpg") center / cover no-repeat;
  background-attachment: fixed;
}
.skin-road { padding-bottom: 40px; }
.bg-skin-2 {
  background:
    linear-gradient(180deg, rgba(8,8,8,.62), rgba(8,8,8,.75)),
    url("../img/skin-2.jpg") center / cover no-repeat;
  background-attachment: fixed;
}

/* Текстура змеиной кожи с золотой пудрой */
.snake-gold {
  background-color: #e8dcc4;
  background-image:
    radial-gradient(ellipse 8px 5px at 12px 8px, rgba(201,168,108,.45) 40%, transparent 42%),
    radial-gradient(ellipse 7px 4px at 28px 18px, rgba(232,213,163,.35) 38%, transparent 40%),
    radial-gradient(ellipse 9px 5px at 44px 6px, rgba(184,149,86,.4) 36%, transparent 38%),
    linear-gradient(135deg, #f3ead4 0%, #e4d3b0 40%, #d4b882 70%, #ead9b4 100%);
  background-size: 56px 28px, 56px 28px, 56px 28px, 100% 100%;
  color: #1a1612;
}
.snake-gold .section-title,
.snake-gold h2, .snake-gold h3 { color: #1a1612; }
.snake-gold .muted { color: #5a4e3e; }

/* Крокодилья кожа + золотая пыль */
.croc-gold {
  background-color: #1c1814;
  background-image:
    radial-gradient(ellipse 22px 14px at 20px 16px, rgba(42,36,28,.95) 42%, transparent 44%),
    radial-gradient(ellipse 20px 12px at 52px 38px, rgba(55,46,34,.9) 40%, transparent 43%),
    radial-gradient(circle at 18% 22%, rgba(232,197,110,.18) 1px, transparent 1.6px),
    radial-gradient(circle at 62% 58%, rgba(255,220,140,.12) 1px, transparent 1.5px),
    radial-gradient(circle at 81% 30%, rgba(201,168,108,.2) 1.2px, transparent 1.8px),
    linear-gradient(160deg, #2a241c 0%, #171410 50%, #3a3228 100%);
  background-size: 72px 48px, 72px 48px, 12px 12px, 18px 18px, 14px 14px, 100% 100%;
  color: #f3ead8;
  box-shadow: inset 0 0 80px rgba(201,168,108,.12);
}
.croc-gold .section-title,
.croc-gold h2, .croc-gold h3 { color: #f6e7c3; }
.croc-gold .muted { color: #d4c4a4; }
.croc-gold .card {
  background: rgba(20,16,12,.55);
  border: 1px solid rgba(201,168,108,.28);
}

/* Чёрная змеиная кожа + фиолетовый неон */
.neon-snake {
  background-color: #07060b;
  background-image:
    radial-gradient(ellipse 10px 6px at 14px 10px, rgba(40,20,55,.9) 38%, transparent 42%),
    radial-gradient(ellipse 9px 5px at 36px 22px, rgba(25,12,40,.85) 36%, transparent 40%),
    radial-gradient(ellipse 8px 5px at 22px 28px, rgba(180,180,200,.12) 30%, transparent 34%),
    linear-gradient(120deg, rgba(176,38,255,.18), transparent 40%, rgba(180,80,255,.12) 70%, transparent),
    linear-gradient(180deg, #0c0a12, #050408);
  background-size: 48px 32px, 48px 32px, 48px 32px, 100% 100%, 100% 100%;
  color: #f4eeff;
  box-shadow: inset 0 0 90px rgba(176,38,255,.22), 0 0 40px rgba(176,38,255,.15);
}
.neon-snake .section-title { color: #f3e8ff; text-shadow: 0 0 18px rgba(176,38,255,.55); }
.neon-snake .tag {
  background: rgba(12,8,18,.65);
  border: 1px solid rgba(176,38,255,.45);
  color: #e8dcff;
  box-shadow: 0 0 12px rgba(176,38,255,.25);
}

.btn-sway { animation: sway 2.4s ease-in-out infinite; }
.btn-sway:nth-child(2) { animation-delay: .6s; }
@keyframes sway {
  0%, 100% { transform: rotate(-1.6deg) translateY(0); }
  50% { transform: rotate(1.8deg) translateY(-3px); }
}

.reviews-wrap { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent); }
.reviews-track {
  display: flex; gap: 16px; width: max-content;
  animation: marquee 55s linear infinite;
}
.reviews-track:hover { animation-play-state: paused; }
.reviews-track .card {
  width: 320px; flex: 0 0 320px;
  background: rgba(255,255,255,.42);
  color: #1a1612;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.team-pitch {
  font-family: Montserrat, sans-serif;
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 32px);
  line-height: 1.35;
  color: #14110c;
  margin-bottom: 18px;
}
.team-pitch-body {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.65;
  color: #2a241c;
  margin-bottom: 28px;
  max-width: 920px;
}

/* Кнопки графитово-терракотовые с серой крапинкой */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: Montserrat, sans-serif;
  font-weight: 600;
  font-size: 15px;
  color: #f5efe8;
  background-color: var(--btn);
  background-image:
    radial-gradient(circle at 18% 22%, rgba(180,180,180,.22) 1.2px, transparent 1.4px),
    radial-gradient(circle at 72% 64%, rgba(160,160,160,.18) 1px, transparent 1.2px),
    radial-gradient(circle at 40% 80%, rgba(200,200,200,.16) 1px, transparent 1.2px),
    radial-gradient(circle at 88% 18%, rgba(140,140,140,.2) 1.1px, transparent 1.3px);
  background-size: 14px 14px, 18px 18px, 12px 12px, 16px 16px;
  border: none;
  border-radius: 10px;
  padding: 14px 26px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(0,0,0,.35);
  transition: transform .2s, filter .2s, box-shadow .2s;
}
.btn:hover {
  filter: brightness(1.18);
  box-shadow: 0 0 0 1px rgba(201,168,108,.4), 0 8px 22px rgba(74,53,48,.5);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: none;
}
.btn-ghost:hover { background: rgba(255,255,255,.06); }

canvas#stars { position: fixed; inset: 0; z-index: var(--z-stars); pointer-events: none; }

/* Header — прозрачная, только буквы поверх зверя */
.header {
  position: fixed; top: 0; left: 0; right: 0;
  width: 100%;
  height: var(--header-h);
  z-index: var(--z-header);
  display: flex; align-items: center;
  background: transparent;
  backdrop-filter: none;
  border: none;
  box-shadow: none;
}
.header.is-solid {
  background: rgba(10,10,10,.55);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
  max-width: none;
  padding: 0 28px;
  margin: 0;
}
.logo {
  font-family: Montserrat, sans-serif;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--accent);
  font-size: 18px;
  text-shadow: 0 2px 14px rgba(0,0,0,.8);
}
.nav { display: flex; gap: 28px; }
.nav a {
  color: #f3f3f3;
  font-size: 14px;
  font-weight: 500;
  text-shadow: 0 2px 12px rgba(0,0,0,.85);
}
.nav a:hover, .nav a.active { color: #fff; }
.burger { display: none; background: none; border: none; color: #fff; font-size: 26px; cursor: pointer; }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px;
  overflow: hidden;
  z-index: var(--z-content);
}
.hero-slides {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  z-index: 0;
  overflow: hidden;
  background: #0a0a0a;
}
.hero-slides img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.hero-slides img.active { opacity: 1; }
.hero-overlay {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 100%;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10,10,10,.18) 0%, rgba(10,10,10,.22) 42%, rgba(10,10,10,.72) 100%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 860px; }
.hero h1 {
  font-family: Montserrat, sans-serif;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.hero p.lead { font-size: 18px; color: #ddd8ce; max-width: 720px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.typing::after { content: "|"; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

.city-bar { margin-top: 36px; }
.city-select {
  background: rgba(0,0,0,.45);
  color: #fff;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  padding: 10px 14px;
  min-width: 280px;
}
.seo-tags { margin-top: 20px; font-size: 12px; color: rgba(255,255,255,.45); line-height: 1.8; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: #151515;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 24px;
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: scale(1.03); box-shadow: 0 0 28px rgba(0,255,136,.12); }
.card .icon { font-size: 32px; margin-bottom: 10px; }
.card h3 { font-family: Montserrat, sans-serif; font-size: 20px; margin-bottom: 8px; }
.card .price { color: var(--accent); font-weight: 700; margin: 10px 0; }
.card ul { margin-top: 10px; padding-left: 18px; color: var(--muted); font-size: 14px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.35);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
}
.dark-tags .tag { border-color: rgba(255,255,255,.12); background: #161616; color: var(--muted); }

/* Portfolio */
.section-portfolio {
  background-color: #08060c;
  background-image:
    url("../img/hero-panther.jpg"),
    radial-gradient(ellipse 14px 8px at 16px 12px, rgba(40,18,55,.7) 36%, transparent 42%),
    linear-gradient(180deg, rgba(8,6,12,.55), rgba(8,6,12,.7));
  background-size: cover, 52px 34px, 100% 100%;
  background-blend-mode: multiply, normal, normal;
  box-shadow: inset 0 0 120px rgba(176,38,255,.35);
}
.section-portfolio .section-title { text-shadow: 0 0 20px rgba(176,38,255,.6); }
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.filter-btn {
  background: #1a1a1a;
  color: #d8d8d8;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 10px 22px;
  cursor: pointer;
  font-family: Montserrat, sans-serif;
  font-weight: 600;
  animation: filtWiggle 2.2s ease-in-out infinite;
  transition: transform .28s, box-shadow .28s, background .2s, border-radius .28s;
}
.filters .filter-btn:nth-child(2) { animation-delay: .15s; }
.filters .filter-btn:nth-child(3) { animation-delay: .3s; }
.filters .filter-btn:nth-child(4) { animation-delay: .45s; }
.filters .filter-btn:nth-child(5) { animation-delay: .6s; }
@keyframes filtWiggle {
  0%, 100% { transform: rotate(-1.4deg); }
  50% { transform: rotate(1.6deg) translateY(-2px); }
}
.filter-btn.active {
  animation: none;
  color: #f4e8ff;
  background: #9B30FF;
  border: 1px solid #D46BFF;
  border-radius: 999px;
  transform: translateY(-4px) rotate(-3deg);
  box-shadow:
    0 0 10px #B026FF,
    0 0 24px #9B30FF,
    0 0 42px rgba(176,38,255,.55),
    0 8px 18px rgba(80,0,120,.45);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  perspective: 1200px;
}
.case {
  background: rgba(12,10,16,.82);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(176,38,255,.28);
  display: block;
  color: inherit;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
  animation: tileFloat 4.5s ease-in-out infinite;
}
.portfolio-grid .case:nth-child(1) { animation-delay: 0s; }
.portfolio-grid .case:nth-child(2) { animation-delay: .25s; }
.portfolio-grid .case:nth-child(3) { animation-delay: .5s; }
.portfolio-grid .case:nth-child(4) { animation-delay: .15s; }
.portfolio-grid .case:nth-child(5) { animation-delay: .4s; }
.portfolio-grid .case:nth-child(6) { animation-delay: .65s; }
.portfolio-grid .case:nth-child(7) { animation-delay: .1s; }
.portfolio-grid .case:nth-child(8) { animation-delay: .35s; }
.portfolio-grid .case:nth-child(9) { animation-delay: .55s; }
.portfolio-grid .case:nth-child(10) { animation-delay: .2s; }
.portfolio-grid .case:nth-child(11) { animation-delay: .45s; }
.portfolio-grid .case:nth-child(12) { animation-delay: .7s; }
@keyframes tileFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.case::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,.18) 50%, transparent 65%);
  transform: translateX(-120%);
  pointer-events: none;
  transition: transform .7s ease;
}
.case:hover::after { transform: translateX(120%); }
.case:hover,
.case.is-tilt {
  animation: none;
  z-index: 5;
  border-color: #00FF88;
  box-shadow:
    0 22px 40px rgba(0,0,0,.45),
    0 0 0 1px rgba(0,255,136,.35),
    0 0 36px rgba(176,38,255,.35),
    0 0 48px rgba(0,255,136,.18);
  transform: translateY(-18px) scale(1.05);
}
.case img {
  width: 100%; height: 180px; object-fit: cover;
  transition: transform .45s ease;
}
.case:hover img { transform: scale(1.12); }
.case-body { padding: 14px 16px 18px; position: relative; z-index: 1; }
.case-body h3 { font-size: 16px; margin-bottom: 4px; }
.case-body p { font-size: 13px; color: var(--muted); }
.case .go { color: var(--accent); font-size: 13px; margin-top: 8px; }
.case[data-cat="vk"] { grid-column: 1 / -1; animation: none; }
.case[data-cat="vk"] img { height: auto; object-fit: contain; background: #0a0a0a; }
.case[data-cat="vk"]:hover img { transform: none; }

.case-page { padding-top: 120px; }
.case-page .hero-img { width: 100%; max-height: 420px; object-fit: cover; border-radius: 16px; margin-bottom: 24px; }
.case-page article { max-width: 760px; font-size: 18px; line-height: 1.7; color: #ddd; }
.case-page h1 { font-family: Montserrat, sans-serif; margin-bottom: 12px; }

/* Reviews */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stars { color: #FFD700; letter-spacing: 2px; }

/* Team */
.avatar {
  width: 100%; height: 320px; border-radius: 12px;
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
  display: flex; align-items: center; justify-content: center;
  font-size: 64px; margin-bottom: 14px;
  overflow: hidden;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.step { background: #141414; border-radius: 12px; padding: 16px 12px; text-align: center; }
.step .n { color: var(--accent); font-family: Montserrat, sans-serif; font-weight: 800; font-size: 22px; }

.manifesto {
  font-family: Montserrat, sans-serif;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.35;
  max-width: 900px;
}

.faq-item { border-bottom: 1px solid rgba(255,255,255,.08); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; color: inherit;
  padding: 16px 0; font-size: 17px; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between;
}
.faq-a { display: none; padding: 0 0 16px; color: var(--muted); }
.faq-item.open .faq-a { display: block; }

.footer { padding: 56px 0 32px; border-top: 1px solid rgba(255,255,255,.06); position: relative; z-index: var(--z-content); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 28px; }
.footer a { color: var(--muted); display: block; margin: 6px 0; }
.form { display: grid; gap: 10px; }
.form input, .form textarea {
  background: #161616; border: 1px solid rgba(255,255,255,.1); color: #fff;
  border-radius: 8px; padding: 12px 14px;
}
.legal { margin-top: 28px; font-size: 13px; color: #777; }

/* Chat */
.chat-btn {
  position: fixed; right: 22px; bottom: 22px; z-index: var(--z-chat);
  width: 60px; height: 60px; border-radius: 50%;
}
.chat-panel {
  position: fixed; right: 22px; bottom: 92px; z-index: var(--z-chat);
  width: 320px; background: #161616; border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px; padding: 16px; display: none;
}
.chat-panel.open { display: block; }
.chat-log { min-height: 80px; font-size: 14px; color: var(--muted); margin-bottom: 10px; }

/* Modal / calc */
.modal {
  position: fixed; inset: 0; z-index: var(--z-modal);
  background: rgba(0,0,0,.7); display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal.open { display: flex; }
.modal-box {
  background: #121212; border-radius: 16px; padding: 28px; width: min(560px, 100%);
  max-height: 90vh; overflow: auto;
}
.progress { height: 6px; background: #2a2a2a; border-radius: 99px; margin: 12px 0 20px; }
.progress > span { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
.choice { display: block; width: 100%; text-align: left; margin: 8px 0; padding: 12px 14px;
  background: #1b1b1b; border: 1px solid rgba(255,255,255,.08); color: #fff; border-radius: 10px; cursor: pointer; }
.choice:hover, .choice.sel { border-color: var(--accent); }

.fade-in { opacity: 0; transform: translateY(16px); animation: fadeUp .7s forwards; }
@keyframes fadeUp { to { opacity: 1; transform: none; } }

@media (max-width: 900px) {
  .grid-3, .portfolio-grid, .reviews, .steps, .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: #0d0d0d; flex-direction: column; padding: 16px; }
  .nav.open { display: flex; }
  .burger { display: block; }
  .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid-3, .grid-2, .portfolio-grid, .reviews, .footer-grid, .steps { grid-template-columns: 1fr; }
}