:root {
  --bg: #f3f4f5;
  --bg-soft: #eceef0;
  --bg-dark: #1f2328;
  --text: #23272c;
  --text-strong: #171a1f;
  --muted: #6f757c;
  --line: rgba(44, 49, 55, 0.12);
  --chrome: linear-gradient(135deg, #ffffff 0%, #ced5dc 18%, #89939d 38%, #f5f7f9 56%, #6f7983 74%, #dfe4e9 100%);
  --silver: linear-gradient(135deg, #f8fafc 0%, #d9dfe5 22%, #a9b2bb 48%, #f4f7fa 72%, #8e99a3 100%);
  --shadow: 0 24px 70px rgba(28, 33, 39, 0.12);
  --shadow-soft: 0 14px 30px rgba(28, 33, 39, 0.08);
  --radius: 28px;
  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(255,255,255,0.92), transparent 28%),
    radial-gradient(circle at 88% 20%, rgba(224, 229, 234, 0.76), transparent 32%),
    linear-gradient(180deg, #f8f9fa 0%, #f1f3f4 48%, #eceff1 100%);
  color: var(--text);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image: radial-gradient(rgba(31, 35, 40, 0.03) 0.7px, transparent 0.7px);
  background-size: 28px 28px;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.section, .section-dark { padding: 110px 0; position: relative; }
.section-dark {
  background: linear-gradient(180deg, rgba(22,25,30,.98), rgba(32,36,42,.98));
  color: #eef1f4;
  overflow: hidden;
}
.section-dark::before, .site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .12;
  background-image: linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 42px 42px;
}
.section-kicker {
  display: inline-block;
  margin-bottom: 18px;
  color: #7f8790;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.section-head { text-align: center; max-width: 980px; margin: 0 auto 58px; }
.section-head.left { text-align: left; margin-left: 0; }
.section-head h2, .lead-text h2, .contacts-card h2, .design-focus-content h2, .quiz-content h2, .mistakes-sticky h2 {
  margin: 0 0 18px;
  font-size: clamp(34px, 5vw, 66px);
  line-height: .98;
  letter-spacing: -.05em;
  text-transform: uppercase;
  color: var(--text-strong);
  font-weight: 900;
}
.section-dark h2, .section-head.dark h2 { color: #f5f7f9; }
.section-head p, .lead-text p, .design-focus-content p, .quiz-content p, .mistakes-sticky p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(255,255,255,.42);
  border-bottom: 1px solid rgba(44,49,55,.08);
  backdrop-filter: blur(18px);
  transition: .3s ease;
}
.site-header.scrolled {
  background: rgba(245,246,247,.88);
  box-shadow: 0 12px 30px rgba(29,34,39,.08);
}
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 22px; }
.logo { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.logo-mark {
  width: 18px;
  height: 50px;
  border-radius: 999px;
  background: var(--chrome);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.8), 0 8px 20px rgba(28,33,39,.12);
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-text strong, .logo-text span { font-weight: 900; letter-spacing: .15em; text-transform: uppercase; }
.logo-text strong { font-size: 15px; color: var(--text-strong); }
.logo-text span { font-size: 12px; color: var(--muted); margin-top: 5px; }
.nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.nav a { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: #3f464d; position: relative; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 0; height: 2px; background: linear-gradient(90deg, #15181d, #a5aeb7); transition: .25s; }
.nav a:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: 18px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 28px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
  transition: .25s ease;
  cursor: pointer;
  border: none;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--chrome);
  color: #14171b;
  box-shadow: 0 18px 34px rgba(73,81,89,.18);
  border: 1px solid rgba(115,124,133,.28);
}
.btn-outline {
  border: 1px solid rgba(44,49,55,.22);
  color: var(--text-strong);
  background: rgba(255,255,255,.42);
}
.btn-secondary { background: var(--bg-dark); color: #f5f7f9; }
.btn-header-outline, .btn-header-solid { min-height: 46px; padding: 0 18px; font-size: 11px; border-radius: 14px; }
.btn-header-outline { border: 1px solid rgba(103,112,121,.4); background: rgba(255,255,255,.34); }
.btn-header-solid { background: linear-gradient(135deg, #24282d, #3a4047); color: #d7dee5; box-shadow: 0 12px 24px rgba(31,35,40,.18); }
.btn-full { width: 100%; }

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(44,49,55,.18);
  border-radius: 14px;
  background: rgba(255,255,255,.56);
  padding: 0;
  cursor: pointer;
  margin-left: auto;
}
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 5px auto; background: #1d2025; transition: .25s; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 150px 0 92px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.04); filter: saturate(.92) contrast(1.02) brightness(.98); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(20,23,28,.86) 0%, rgba(28,33,39,.58) 42%, rgba(230,234,238,.08) 100%);
}
.hero-noise { position: absolute; inset: 0; opacity: .08; background-image: radial-gradient(rgba(255,255,255,.6) .7px, transparent .7px); background-size: 7px 7px; }
.hero-content { position: relative; z-index: 2; max-width: 960px; }
.hero-badge {
  display: inline-flex;
  padding: 12px 18px;
  border: 1px solid rgba(223,228,233,.36);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: #eef2f5;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(44px, 7vw, 88px);
  line-height: .93;
  letter-spacing: -.06em;
  text-transform: uppercase;
  color: #f6f8fa;
  max-width: 920px;
  font-weight: 900;
}
.hero-text { max-width: 760px; font-size: 18px; line-height: 1.85; color: rgba(240,243,246,.84); margin: 0 0 30px; }
.hero-points { display: grid; gap: 14px; margin-bottom: 34px; max-width: 860px; }
.hero-point {
  position: relative;
  padding: 18px 20px 18px 54px;
  border: 1px solid rgba(228,233,238,.16);
  background: linear-gradient(180deg, rgba(255,255,255,.13), rgba(255,255,255,.06));
  border-radius: 20px;
  color: #f5f7f9;
  line-height: 1.65;
  backdrop-filter: blur(8px);
}
.hero-point::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--silver);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 42px; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 850px; }
.stat-card {
  padding: 24px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,.17), rgba(255,255,255,.08));
  border: 1px solid rgba(232,236,240,.16);
  backdrop-filter: blur(8px);
}
.stat-card strong {
  display: block;
  font-size: 34px;
  line-height: 1;
  margin-bottom: 8px;
  font-weight: 900;
  background: var(--chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-card span { color: rgba(238,242,245,.82); font-size: 14px; line-height: 1.55; }
.scroll-indicator { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 1px; height: 74px; overflow: hidden; z-index: 2; }
.scroll-indicator::before { content: ""; position: absolute; inset: 0; background: rgba(221,227,232,.24); }
.scroll-indicator span { position: absolute; left: 0; top: -40%; width: 100%; height: 36px; background: linear-gradient(180deg, transparent, rgba(245,247,249,.95), transparent); animation: scrollLine 2s infinite; }
@keyframes scrollLine { 0% { transform: translateY(-10px); opacity: 0; } 30% { opacity: 1; } 100% { transform: translateY(90px); opacity: 0; } }

.impact-strip { border-top: 1px solid rgba(44,49,55,.08); border-bottom: 1px solid rgba(44,49,55,.08); background: linear-gradient(90deg, rgba(255,255,255,.75), rgba(236,239,241,.95), rgba(247,248,249,.75)); }
.impact-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 20px 0; }
.impact-item { text-align: center; font-weight: 800; font-size: 13px; color: #4d535a; letter-spacing: .16em; text-transform: uppercase; }

.services-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 24px; }
.service-card, .adv-card, .timeline-box, .media-card, .mistakes-sticky, .mistake-card, .mistakes-cta, .quiz-content, .quiz-form, .lead-text, .lead-form, .contacts-card, .mini-form {
  background: linear-gradient(180deg, rgba(255,255,255,.86), rgba(241,243,245,.96));
  border: 1px solid rgba(44,49,55,.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.service-card { transition: .3s ease; }
.service-card.featured { transform: translateY(-8px); }
.service-image { height: 290px; overflow: hidden; position: relative; }
.service-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(27,31,36,.12)); }
.service-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .7s ease; }
.service-card:hover .service-image img { transform: scale(1.08); }
.service-body { padding: 28px; }
.service-num, .adv-index, .timeline-num, .mistake-num {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 42px;
  line-height: 1;
  font-weight: 300;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(52,58,65,.45);
}
.service-body h3, .adv-card h3, .timeline-card h3, .media-body h3, .mini-form h3, .mistake-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.2;
  text-transform: uppercase;
  color: var(--text-strong);
  font-weight: 800;
}
.service-body p, .adv-card p, .timeline-card p, .contact-list, .form-note, .media-body p, .mistake-card p, .mistakes-cta-text span {
  color: var(--muted);
  line-height: 1.75;
}
.service-body ul { margin: 18px 0 0; padding: 0; list-style: none; }
.service-body li { position: relative; padding-left: 22px; margin-bottom: 10px; color: #3b4248; }
.service-body li::before { content: "•"; position: absolute; left: 0; color: #6d7680; }
.service-card:hover, .adv-card:hover, .mistake-card:hover {
  background: linear-gradient(180deg, #2b3036, #22272d);
  border-color: rgba(196,205,214,.34);
  transform: translateY(-6px);
}
.service-card:hover h3, .service-card:hover p, .service-card:hover li, .adv-card:hover h3, .adv-card:hover p, .mistake-card:hover h3, .mistake-card:hover p { color: #eef2f5; }

.design-focus::before, .lead::before, .timeline-section::before, .media-section::before, .mistakes-section::before {
  content: "";
  position: absolute;
  inset: 10% 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(44,49,55,.12), transparent);
}
.design-focus-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.design-showcase { position: relative; min-height: 620px; }
.showcase-card {
  position: absolute;
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid rgba(44,49,55,.1);
  box-shadow: var(--shadow);
  background: rgba(255,255,255,.72);
}
.showcase-card img { width: 100%; height: 100%; object-fit: cover; }
.showcase-top { top: 0; right: 0; width: 78%; height: 360px; }
.showcase-bottom { left: 0; bottom: 0; width: 70%; height: 320px; }
.check-grid { display: grid; gap: 14px; margin-top: 30px; }
.check-item {
  position: relative;
  padding: 16px 18px 16px 52px;
  border: 1px solid rgba(44,49,55,.1);
  border-radius: 18px;
  background: rgba(255,255,255,.8);
  font-weight: 600;
  color: #32373d;
  box-shadow: 0 8px 20px rgba(31,35,40,.05);
}
.check-item::before { content: "✓"; position: absolute; left: 18px; top: 15px; color: #5e6670; font-weight: 800; font-size: 20px; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-radius: 30px; overflow: hidden; border: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.03); }
.big-stat { position: relative; padding: 40px 28px; text-align: center; }
.big-stat:not(:last-child)::after { content: ""; position: absolute; top: 18%; right: 0; width: 1px; height: 64%; background: rgba(255,255,255,.12); }
.big-stat strong {
  display: inline-block;
  margin-bottom: 14px;
  font-size: clamp(54px, 7vw, 88px);
  line-height: 1;
  font-weight: 900;
  background: var(--chrome);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: transform .2s ease;
}
.big-stat span { display: block; color: rgba(221,227,233,.82); font-size: 15px; line-height: 1.6; }

.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.adv-card { padding: 28px; box-shadow: var(--shadow-soft); }

.timeline-box { padding: 34px; transition: background .4s ease; }
.timeline-scale { position: relative; padding: 28px 0 16px; margin-bottom: 28px; }
.timeline-scale::before { content: ""; position: absolute; left: 0; right: 0; top: 40px; height: 14px; border-radius: 999px; background: linear-gradient(180deg, #dfe4e8, #cfd6dc); }
.timeline-progress { position: absolute; left: 0; top: 40px; height: 14px; width: 0%; border-radius: 999px; background: linear-gradient(90deg, #eef2f5, #808a94, #e8edf1); transition: width .35s ease; }
.timeline-range { position: absolute; inset: 18px 0 auto 0; width: 100%; opacity: 0; cursor: pointer; z-index: 3; }
.timeline-points { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); }
.timeline-point {
  justify-self: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(76,83,91,.24);
  background: #edf1f4;
  color: #3c434a;
  font-weight: 800;
  cursor: pointer;
}
.timeline-point.active { background: var(--chrome); color: #12151a; box-shadow: 0 10px 20px rgba(31,35,40,.12); }
.timeline-card { display: none; padding: 24px; border-radius: 22px; background: rgba(255,255,255,.66); border: 1px solid rgba(44,49,55,.08); }
.timeline-card.active { display: block; }

.media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.media-card { box-shadow: var(--shadow-soft); }
.media-link { display: block; height: 100%; }
.media-thumb { position: relative; height: 300px; overflow: hidden; }
.media-thumb img, .media-thumb video { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: .6s ease; }
.media-thumb::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(32,36,42,.12), rgba(32,36,42,.3)); transition: opacity .35s ease; }
.play-btn {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(39,44,51,.94), rgba(98,107,116,.92));
  border: 1px solid rgba(219,226,231,.28);
  box-shadow: 0 18px 30px rgba(22,25,30,.18);
}
.play-btn::before {
  content: "";
  position: absolute;
  left: 31px;
  top: 24px;
  border-left: 18px solid #e8edf1;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
}
.media-body { padding: 24px; }
.media-card:hover .media-thumb img, .media-link:hover .media-thumb img { transform: scale(1.06); }
.media-card:hover .media-thumb::after, .media-link:hover .media-thumb::after { opacity: .02; }

.mistakes-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 28px; align-items: start; }
.mistakes-sticky, .mistake-card, .mistakes-cta, .quiz-content, .quiz-form, .lead-text, .lead-form, .contacts-card, .mini-form { padding: 34px; position: relative; }
.mistakes-sticky { position: sticky; top: 116px; }
.mistakes-sticky .btn { margin-top: 28px; }
.mistakes-cards { display: grid; gap: 22px; }
.mistakes-cta {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 24px;
  align-items: start;
  background: linear-gradient(135deg, rgba(31,35,40,.96), rgba(61,68,76,.96));
  border-color: rgba(206,214,221,.16);
}
.mistakes-cta-text strong {
  display: block;
  margin-bottom: 14px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.02;
  letter-spacing: -.04em;
  text-transform: uppercase;
  color: #f5f7f9;
}
.mistakes-cta-text span { color: rgba(225,231,236,.82); }
.mistakes-form, .quiz-form, .lead-form, .mini-form { display: grid; gap: 18px; }
.mistakes-form input, .mistakes-form textarea { color: #f1f4f7; border-bottom-color: rgba(216,224,231,.28); }
.mistakes-form input::placeholder, .mistakes-form textarea::placeholder { color: rgba(211,218,224,.72); }

.quiz-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.quiz-stepper { display: flex; gap: 12px; margin-top: 28px; }
.step-dot { width: 14px; height: 14px; border-radius: 50%; border: 1px solid rgba(95,104,113,.32); }
.step-dot.active { background: var(--chrome); }
.quiz-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.choice-card { position: relative; display: block; cursor: pointer; }
.choice-card input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.choice-card span {
  display: flex;
  align-items: center;
  min-height: 74px;
  padding: 18px 18px 18px 48px;
  border-radius: 18px;
  border: 1px solid rgba(44,49,55,.12);
  background: rgba(255,255,255,.7);
  color: #30363d;
  font-weight: 700;
  position: relative;
}
.choice-card span::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(77,85,93,.32);
  background: #f8fafb;
}
.choice-card input:checked + span {
  background: linear-gradient(180deg, rgba(40,45,51,.96), rgba(58,64,71,.96));
  color: #eef2f5;
  box-shadow: 0 14px 26px rgba(26,31,37,.14);
}
.choice-card input:checked + span::before { background: var(--chrome); }
.quiz-fields { display: grid; gap: 14px; }

input, textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid rgba(97,106,115,.3);
  background: transparent;
  border-radius: 0;
  padding: 16px 2px 14px;
  color: var(--text-strong);
  font-size: 15px;
  outline: none;
  transition: border-color .2s ease;
}
input::placeholder, textarea::placeholder { color: #8b9198; }
input:focus, textarea:focus { border-bottom-color: #2d333a; }
textarea { resize: vertical; min-height: 120px; }
.form-note { margin: 0; font-size: 13px; }

.lead-wrap, .contacts-grid { display: grid; grid-template-columns: 1fr .95fr; gap: 28px; align-items: start; }
.lead-contacts { display: grid; gap: 12px; margin-top: 24px; }
.lead-contacts a, .contact-list a { color: #30363d; font-weight: 700; }
.contact-list { list-style: none; padding: 0; margin: 18px 0 0; }
.contact-list li { margin-bottom: 14px; }

.site-footer {
  position: relative;
  border-top: 1px solid rgba(44,49,55,.08);
  background: linear-gradient(180deg, #23282e, #1b2025);
  padding-top: 36px;
  overflow: hidden;
}
.footer-inner { display: grid; grid-template-columns: 1.3fr .7fr .8fr; gap: 28px; padding-bottom: 26px; position: relative; z-index: 1; }
.footer-logo { font-size: 30px; color: #eef2f5; margin-bottom: 14px; text-transform: uppercase; font-weight: 900; letter-spacing: -.03em; }
.footer-brand p, .footer-col a, .footer-bottom { color: rgba(223,229,234,.74); line-height: 1.7; }
.footer-col { display: grid; align-content: start; gap: 10px; }
.footer-col h4 { margin: 0 0 8px; color: #f5f7f9; text-transform: uppercase; font-size: 14px; letter-spacing: .12em; }
.footer-bottom { position: relative; z-index: 1; padding: 20px 0 34px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; }

.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(245,246,247,.92);
  border: 1px solid rgba(44,49,55,.14);
  box-shadow: 0 24px 40px rgba(28,33,39,.14);
  backdrop-filter: blur(14px);
}
.cookie-banner.show { display: flex; }
.cookie-text { color: var(--muted); font-size: 14px; line-height: 1.6; }
.cookie-text a { color: var(--text-strong); text-decoration: underline; }
.cookie-btn { flex-shrink: 0; }

@media (max-width: 1120px) {
  .services-grid, .quiz-wrap, .lead-wrap, .contacts-grid, .footer-inner, .design-focus-grid, .media-grid, .mistakes-layout, .mistakes-cta { grid-template-columns: 1fr 1fr; }
  .advantages-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .big-stat:nth-child(2)::after { display: none; }
  .design-showcase { min-height: 520px; }
  .mistakes-sticky { position: relative; top: auto; }
}

@media (max-width: 920px) {
  .nav, .header-actions { display: none; }
  .menu-toggle { display: block; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 88px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: flex-start;
    padding: 18px;
    border-radius: 18px;
    background: rgba(248,249,250,.96);
    border: 1px solid rgba(44,49,55,.12);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
  }
  .hero-stats, .impact-inner, .services-grid, .quiz-wrap, .lead-wrap, .contacts-grid, .footer-inner, .advantages-grid, .design-focus-grid, .media-grid, .stats-grid, .mistakes-layout, .mistakes-cta { grid-template-columns: 1fr; }
  .big-stat::after { display: none !important; }
  .design-showcase { min-height: auto; display: grid; gap: 18px; }
  .showcase-card { position: relative; width: 100%; height: 280px; inset: auto; }
  .quiz-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section, .section-dark { padding: 80px 0; }
  .header-inner { min-height: 78px; }
  .hero { min-height: auto; padding-top: 120px; padding-bottom: 72px; }
  .hero h1 { font-size: 40px; }
  .hero-text { font-size: 16px; line-height: 1.75; }
  .hero-point, .check-item, .lead-text, .lead-form, .contacts-card, .mini-form, .adv-card, .service-body, .quiz-content, .quiz-form, .timeline-box, .timeline-card, .media-body, .mistakes-sticky, .mistake-card, .mistakes-cta { padding-left: 20px; padding-right: 20px; }
  .hero-point { padding-left: 48px; }
  .service-image, .media-thumb { height: 220px; }
  .btn, .btn-header-outline, .btn-header-solid { width: 100%; }
  .hero-actions { gap: 12px; }
  .cookie-banner { flex-direction: column; align-items: stretch; }
  .cookie-btn { width: 100%; }
  .stat-card { padding: 20px; }
  .lead-text, .lead-form, .contacts-card, .mini-form, .quiz-content, .quiz-form, .timeline-box, .mistakes-sticky, .mistake-card, .mistakes-cta { padding: 24px; }
  .timeline-point { width: 38px; height: 38px; }
  .scroll-indicator { bottom: 18px; height: 56px; }
}