/* =============================================
   ОСНОВНЫЕ CSS-ПЕРЕМЕННЫЕ И ТЕМА
   ============================================= */
:root {
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #3B82F6;
  --color-primary-bg: #EFF6FF;
  --color-accent: #F97316;
  --color-accent-dark: #EA580C;
  --color-background: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-text: #1E293B;
  --color-text-secondary: #475569;
  --color-muted: #64748B;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;
  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-error: #EF4444;
  --color-error-bg: #FEF2F2;
  --color-warning: #F59E0B;

  --font-family: 'Inter', 'Segoe UI', 'Roboto', Arial, sans-serif;
  --border-radius: 12px;
  --button-radius: 10px;
  --container-width: 1200px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 10px 25px rgba(0,0,0,0.1);
  --shadow-modal: 0 20px 60px rgba(0,0,0,0.15);

  --header-height: 72px;
  --section-padding: 80px;
  --section-padding-mobile: 48px;
}

/* =============================================
   СБРОС И БАЗОВЫЕ СТИЛИ
   ============================================= */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }

/* =============================================
   УТИЛИТАРНЫЕ КЛАССЫ
   ============================================= */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-padding) 0;
}

.section-title {
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1.0625rem;
  line-height: 1.6;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* =============================================
   КНОПКИ
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--button-radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #EA580C 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, #DC2626 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #6D28D9 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
  color: #fff;
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-ghost {
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.btn-ghost:hover {
  background: #DBEAFE;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled, .btn.loading {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* =============================================
   ШАПКА САЙТА
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 24px rgba(0,0,0,0.06);
}

.header-top {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
}

.header-top .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 8px;
  padding-bottom: 8px;
  min-height: 40px;
}

.header-top__info {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  min-width: 0;
}

.header-top__item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  white-space: nowrap;
}

.header-top__item a {
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}

.header-top__item a:hover {
  color: #fff;
}

.header-top__item svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  opacity: 0.7;
  flex-shrink: 0;
}

.header-top__messengers {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

.header-top__messengers a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  transition: all 0.25s;
  flex-shrink: 0;
}

.header-top__messengers a svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  display: block;
}

.header-top__messengers a:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
  transform: translateY(-1px);
}

.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--header-height);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 1;
  min-width: 0;
}

.header-logo__icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.header-logo__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.header-logo__name {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  white-space: nowrap;
}

.header-logo__tagline {
  font-size: 0.75rem;
  color: var(--color-muted);
  line-height: 1.3;
  max-width: 260px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.header-nav__link {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
  white-space: nowrap;
}

.header-nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-nav__link:hover {
  color: var(--color-primary);
}

.header-nav__link:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: all 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}

.header-phone svg {
  width: 18px;
  height: 18px;
  fill: var(--color-primary);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.header-phone:hover {
  color: var(--color-primary);
}

.header-phone:hover svg {
  transform: rotate(-12deg) scale(1.1);
}

.header-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  transition: all 0.25s;
}

.header-menu-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

.header-menu-btn svg {
  width: 22px;
  height: 22px;
}

/* Мобильное меню */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 85vw;
  height: 100%;
  height: 100dvh;
  background: var(--color-surface);
  padding: 24px;
  padding-top: max(24px, env(safe-area-inset-top));
  padding-bottom: max(24px, env(safe-area-inset-bottom));
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -8px 0 32px rgba(0,0,0,0.1);
}

.mobile-menu.open .mobile-menu__panel {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu__close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--color-muted);
}

.mobile-menu__close:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.mobile-menu__nav a {
  display: block;
  padding: 14px 16px;
  border-radius: 10px;
  color: var(--color-text);
  font-weight: 500;
  transition: all 0.2s;
}

.mobile-menu__nav a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  padding-left: 20px;
}

.mobile-menu__phone {
  display: block;
  text-align: center;
  padding: 16px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  color: #fff;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1.125rem;
  margin-top: 16px;
  transition: all 0.25s;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.mobile-menu__phone:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #6D28D9 100%);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

/* Нижняя панель (моб.) */
.bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-top: 1px solid rgba(226, 232, 240, 0.6);
  padding: 10px 16px;
  padding-bottom: max(10px, env(safe-area-inset-bottom));
  z-index: 999;
  gap: 10px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
}

.bottom-bar__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.9375rem;
  transition: all 0.25s;
}

.bottom-bar__btn--call {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.bottom-bar__btn--call:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #6D28D9 100%);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.bottom-bar__btn--calc {
  background: linear-gradient(135deg, var(--color-accent) 0%, #EA580C 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
}

.bottom-bar__btn--calc:hover {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, #DC2626 100%);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

/* =============================================
   ПЕРВЫЙ ЭКРАН
   ============================================= */
.hero {
  padding-top: calc(var(--header-height) + 80px);
  padding-bottom: 80px;
  background: var(--color-background);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: hero-glow 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: hero-glow 10s ease-in-out infinite alternate-reverse;
}

@keyframes hero-glow {
  0% { transform: scale(1) translate(0, 0); opacity: 0.6; }
  100% { transform: scale(1.2) translate(30px, -20px); opacity: 1; }
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.hero__badge svg {
  width: 16px;
  height: 16px;
  fill: var(--color-success);
}

.hero__title {
  margin-bottom: 20px;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero__title span {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.1875rem);
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
  line-height: 1.7;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero__buttons .btn-primary {
  position: relative;
  overflow: hidden;
}

.hero__buttons .btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s;
}

.hero__buttons .btn-primary:hover::after {
  transform: translateX(100%);
}

.hero__note {
  font-size: 0.8125rem;
  color: var(--color-muted);
  max-width: 480px;
  animation: fadeInUp 0.6s ease-out 0.35s both;
}

.hero__trust-line {
  margin-top: 18px;
  max-width: 520px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero__proofs {
  display: none;
}

.hero__proof {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  padding: 8px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.hero__proof svg {
  width: 16px;
  height: 16px;
  fill: var(--color-success);
  flex-shrink: 0;
}

.hero__image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-border);
  animation: fadeInRight 0.8s ease-out 0.2s both;
  box-shadow: 0 20px 60px rgba(0,0,0,0.1), 0 4px 16px rgba(0,0,0,0.06);
}

.hero__image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.1) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.hero__image img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero__image:hover img {
  transform: scale(1.03);
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero__image-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-radius: 14px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  animation: fadeInUp 0.6s ease-out 0.6s both;
}

.hero__image-price {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-text);
}

.hero__image-label {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.hero__image-date {
  margin-left: auto;
  text-align: right;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.hero__image-date strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-success);
}

/* =============================================
   ПОЛОСА ДОВЕРИЯ (STATS)
   ============================================= */
.trust-bar {
  padding: 36px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 2;
}

.trust-bar__list {
  display: flex;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.trust-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  padding: 8px 28px;
  position: relative;
  transition: transform 0.3s ease;
}

.trust-bar__item:hover {
  transform: translateY(-2px);
}

.trust-bar__item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

.trust-bar__value {
  font-size: 1.625rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.trust-bar__label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  max-width: 140px;
}

/* =============================================
   ВЫБОР ЗАДАЧИ
   ============================================= */
.task-selector {
  padding: var(--section-padding) 0;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.task-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 14px;
  padding: 24px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.task-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.05) 0%, rgba(124,58,237,0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.task-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.1);
  transform: translateY(-3px);
}

.task-card:hover::before {
  opacity: 1;
}

.task-card.active {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.12);
}

.task-card.active::before {
  opacity: 1;
}

.task-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  background: var(--color-primary-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.task-card.active .task-card__icon {
  background: var(--color-primary);
  color: #fff;
}

.task-card__title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 4px;
}

.task-card__desc {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

/* =============================================
   ГОТОВЫЕ КОМПЛЕКТЫ
   ============================================= */
.products {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 24px;
  margin-top: 32px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.product-card:hover {
  box-shadow: 0 20px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.2);
}

.product-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #EA580C 100%);
  color: #fff;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
}

.product-card__tagline {
  margin: 8px 0 0;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.product-card__more,
.product-card__price-details {
  margin-top: 12px;
}

.product-card__more summary,
.product-card__price-details summary {
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  list-style: none;
}

.product-card__more summary::-webkit-details-marker,
.product-card__price-details summary::-webkit-details-marker {
  display: none;
}

.product-card__total {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 4px 0 8px;
  border-top: none;
}

.product-card__total-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.product-card__total-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.products__show-more,
.reviews__show-more {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}

.tech-details {
  margin-top: 20px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  overflow: hidden;
}

.tech-details__summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  color: var(--color-primary);
  list-style: none;
}

.tech-details__summary::-webkit-details-marker {
  display: none;
}

.tech-details[open] .tech-details__summary {
  border-bottom: 1px solid var(--color-border);
}

.tech-details .installation__grid {
  padding: 16px 20px 20px;
  margin: 0;
}

.warranty__lead {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.product-card__image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-border-light) 0%, var(--color-border) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-card__image img {
  transform: scale(1.05);
}

.product-card__body {
  padding: 22px;
}

.product-card__category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.product-card__name {
  font-size: 1.1875rem;
  font-weight: 800;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.product-card__model {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.product-card__specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.product-card__spec {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
}

.product-card__spec svg {
  width: 14px;
  height: 14px;
  fill: var(--color-muted);
  flex-shrink: 0;
}

.product-card__price-block {
  padding: 18px 22px;
  background: linear-gradient(135deg, var(--color-border-light) 0%, rgba(124,58,237,0.03) 100%);
  border-top: 1px solid var(--color-border);
}

.product-card__price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
  font-size: 0.875rem;
}

.product-card__price-label {
  color: var(--color-muted);
}

.product-card__price-value {
  font-weight: 600;
}

.product-card__total {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.product-card__total-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-muted);
}

.product-card__total-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.15;
  background: none;
  -webkit-text-fill-color: unset;
}

.product-card__note {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-top: 6px;
  line-height: 1.4;
}

.product-card__actions {
  padding: 16px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* =============================================
   КАЛЬКУЛЯТОР
   ============================================= */
.calculator {
  padding: var(--section-padding) 0;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, #F0F9FF 100%);
}

.calculator__wrapper {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: 20px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02), 0 12px 40px rgba(0,0,0,0.06);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.5);
}

.calculator__progress {
  display: flex;
  padding: 18px 28px;
  background: var(--color-border-light);
  border-bottom: 1px solid var(--color-border);
  gap: 4px;
}

.calculator__progress-step {
  flex: 1;
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.calculator__progress-step.active {
  background: linear-gradient(90deg, var(--color-primary) 0%, #7C3AED 100%);
  box-shadow: 0 0 8px rgba(37, 99, 235, 0.3);
}

.calculator__progress-step.completed {
  background: var(--color-success);
}

.calculator__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 0;
}

.calculator__step-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.calculator__back {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color 0.2s;
}

.calculator__back:hover {
  color: var(--color-primary);
}

.calculator__back svg {
  width: 16px;
  height: 16px;
}

.calculator__body {
  padding: 20px 24px 24px;
}

.calculator__question {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.calculator__hint {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Варианты ответов */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.option-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
}

.option-btn:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-bg);
  transform: translateY(-1px);
}

.option-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.option-btn__icon {
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 0.75rem;
}

.option-btn.selected .option-btn__icon {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}

.option-btn__label {
  font-size: 0.9375rem;
  font-weight: 500;
}

/* Площадь - ручной ввод */
.area-input-group {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.area-input-group input {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1rem;
  outline: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.area-input-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Множественный выбор */
.option-btn--multi {
  position: relative;
}

.option-btn--multi.selected .option-btn__icon {
  border-radius: 4px;
}

/* Фото-загрузка (калькулятор — legacy zones) */
.photo-upload-area {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.photo-upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.photo-upload-zone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.photo-upload-zone svg {
  width: 32px;
  height: 32px;
  fill: var(--color-muted);
  margin-bottom: 8px;
}

.photo-upload-zone__label {
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.photo-upload-zone__hint {
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* =============================================
   PICTURES WALL (picture-card)
   ============================================= */
.picture-wall {
  width: 100%;
}

.picture-wall.is-dragover .picture-wall__card--upload {
  border-color: var(--color-primary);
  background: var(--color-primary-bg, #EFF6FF);
}

.picture-wall__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.picture-wall__card {
  position: relative;
  width: 104px;
  height: 104px;
  margin: 0;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-surface, #fff);
  overflow: hidden;
  flex-shrink: 0;
  font: inherit;
  color: inherit;
}

.picture-wall__card--upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-style: dashed;
  border-color: #CBD5E1;
  background: #F8FAFC;
  color: var(--color-muted);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.picture-wall__card--upload:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg, #EFF6FF);
}

.picture-wall__card--upload span {
  font-size: 0.8125rem;
  line-height: 1;
}

.picture-wall__card--done {
  border-color: #E2E8F0;
}

.picture-wall__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.picture-wall__actions {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  transition: opacity 0.2s;
}

.picture-wall__card--done:hover .picture-wall__actions {
  opacity: 1;
}

.picture-wall__action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
  padding: 0;
}

.picture-wall__action:hover {
  color: #DBEAFE;
}

.picture-wall__card--uploading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-style: dashed;
  border-color: #CBD5E1;
  background: #F8FAFC;
  padding: 12px;
}

.picture-wall__uploading-text {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.picture-wall__progress {
  width: 72%;
  height: 4px;
  border-radius: 999px;
  background: #E2E8F0;
  overflow: hidden;
}

.picture-wall__progress-bar {
  height: 100%;
  background: var(--color-primary, #2563EB);
  border-radius: inherit;
  transition: width 0.15s linear;
}

.picture-wall__card--error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid #F87171;
  background: #FEF2F2;
  color: #EF4444;
  padding: 8px;
}

.picture-wall__error-icon {
  line-height: 0;
  opacity: 0.9;
}

.picture-wall__error-name {
  font-size: 0.75rem;
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.picture-wall__remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: #EF4444;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.picture-wall__hint {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}

.picture-wall-preview {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.85);
  padding: 24px;
}

.picture-wall-preview.is-open {
  display: flex;
}

.picture-wall-preview__img {
  max-width: min(920px, 100%);
  max-height: 90vh;
  border-radius: 12px;
  object-fit: contain;
}

.picture-wall-preview__close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

/* Результат калькулятора */
.calculator__result {
  text-align: center;
  padding: 32px 24px;
}

.calculator__result-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
  animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.calculator__result-title {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.calculator__result-text {
  color: var(--color-muted);
  margin-bottom: 28px;
  font-size: 1.0625rem;
  line-height: 1.6;
}

/* =============================================
   МОНТАЖ (ЧТО ВХОДИТ)
   ============================================= */
.installation {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
}

.installation::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.installation__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: 12px;
  margin-top: 36px;
}

.installation__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-size: 0.9375rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.installation__item:hover {
  border-color: rgba(37, 99, 235, 0.2);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
  transform: translateY(-1px);
  background: var(--color-surface);
}

.installation__icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(124, 58, 237, 0.05) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.installation__icon svg {
  width: 18px;
  height: 18px;
}

.installation__note {
  margin-top: 32px;
  padding: 20px 24px;
  background: linear-gradient(135deg, rgba(37,99,235,0.06) 0%, rgba(124,58,237,0.04) 100%);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 14px 14px 0;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.installation__note svg {
  width: 22px;
  height: 22px;
  fill: var(--color-primary);
  flex-shrink: 0;
}

/* =============================================
   ДОПОЛНИТЕЛЬНЫЕ РАБОТЫ
   ============================================= */
.additional-works {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.works-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.works-table-wrap {
  margin-top: 32px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 12px;
}

.works-table thead {
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(124,58,237,0.05) 100%);
}

.works-table th,
.works-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.works-table th {
  font-weight: 700;
  color: var(--color-text-secondary);
}

.works-table tr:last-child td {
  border-bottom: none;
}

.works-table tbody tr {
  transition: background 0.2s;
}

.works-table tbody tr:hover td {
  background: rgba(37, 99, 235, 0.03);
}

.works-table__price {
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  font-size: 0.9375rem;
}

.additional-works__note {
  margin-top: 24px;
  font-size: 0.9375rem;
  color: var(--color-muted);
  text-align: center;
  line-height: 1.6;
}

/* =============================================
   МОНТАЖ В ГОТОВОМ РЕМОНТЕ
   ============================================= */
.ready-installation {
  padding: var(--section-padding) 0;
}

.ready-installation__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.ready-installation__card {
  border-radius: 16px;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ready-installation__card:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.ready-installation__image {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-border-light) 0%, var(--color-border) 100%);
  overflow: hidden;
}

.ready-installation__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.ready-installation__card:hover .ready-installation__image img {
  transform: scale(1.05);
}

.ready-installation__caption {
  padding: 16px 18px;
  font-size: 0.9375rem;
  font-weight: 600;
}

.ready-installation__advantages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.ready-installation__advantage {
  display: flex;
  gap: 12px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.ready-installation__advantage:hover {
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.06);
  transform: translateY(-1px);
}

.ready-installation__advantage svg {
  width: 22px;
  height: 22px;
  fill: var(--color-success);
  flex-shrink: 0;
  margin-top: 1px;
}

.ready-installation__advantage-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* =============================================
   СРАВНИТЕЛЬНАЯ ТАБЛИЦА
   ============================================= */
.comparison {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.comparison__table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 32px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.comparison__header {
  padding: 20px 24px;
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

.comparison__header--bad {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.comparison__header--good {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.comparison__row {
  display: contents;
}

.comparison__cell {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.4;
}

.comparison__cell:last-child {
  border-bottom: none;
}

.comparison__cell--bad {
  background: var(--color-error-bg);
  color: var(--color-text-secondary);
}

.comparison__cell--good {
  background: var(--color-success-bg);
  color: var(--color-text-secondary);
}

.comparison__cell svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.comparison__cell--bad svg { fill: var(--color-error); }
.comparison__cell--good svg { fill: var(--color-success); }

/* =============================================
   ВЫПОЛНЕННЫЕ РАБОТЫ (КЕЙСЫ)
   ============================================= */
.cases {
  padding: var(--section-padding) 0;
}

.cases-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  justify-content: center;
}

.cases-filter-btn {
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all 0.25s;
  white-space: nowrap;
}

.cases-filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.cases-filter-btn.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 24px;
}

.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.case-card__gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.case-card__gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-card__gallery img {
  transform: scale(1.05);
}

.case-card__body {
  padding: 18px 22px;
}

.case-card__district {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.case-card__details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 14px 0;
}

.case-card__detail {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.case-card__detail strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text);
  font-weight: 600;
}

.case-card__review {
  padding: 14px 18px;
  background: linear-gradient(135deg, rgba(37,99,235,0.03) 0%, rgba(124,58,237,0.03) 100%);
  border-radius: 12px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-style: italic;
  margin-top: 14px;
  line-height: 1.6;
  border-left: 3px solid var(--color-primary);
}

.case-card__review-author {
  display: block;
  margin-top: 8px;
  font-style: normal;
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.8125rem;
}

/* =============================================
   ЭТАПЫ РАБОТЫ
   ============================================= */
.stages {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.stages__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
  margin-top: 32px;
  counter-reset: stage;
}

.stage-item {
  text-align: center;
  position: relative;
  counter-increment: stage;
}

.stage-item__number {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #7C3AED 100%);
  color: #fff;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  transition: all 0.3s;
}

.stage-item:hover .stage-item__number {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.stage-item__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 180px;
  margin: 0 auto;
}

/* =============================================
   КОМАНДА
   ============================================= */
.team {
  padding: var(--section-padding) 0;
}

.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.team-member {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.team-member:hover {
  box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.team-member__photo {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-border-light) 0%, var(--color-border) 100%);
  overflow: hidden;
}

.team-member__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.team-member:hover .team-member__photo img {
  transform: scale(1.05);
}

.team-member__info {
  padding: 18px 22px;
}

.team-member__name {
  font-weight: 800;
  font-size: 1.0625rem;
  margin-bottom: 4px;
}

.team-member__role {
  font-size: 0.875rem;
  color: var(--color-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.team-member__exp {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.5;
}

/* =============================================
   ГАРАНТИЯ
   ============================================= */
.warranty {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.warranty__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
}

.warranty__block {
  padding: 32px;
  background: var(--color-background);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.warranty__block:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.warranty__block-title {
  font-size: 1.1875rem;
  font-weight: 800;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.01em;
}

.warranty__block-title svg {
  width: 28px;
  height: 28px;
  fill: var(--color-primary);
}

.warranty__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.warranty__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.warranty__list li svg {
  width: 20px;
  height: 20px;
  fill: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* =============================================
   ОТЗЫВЫ
   ============================================= */
.reviews {
  padding: var(--section-padding) 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 24px;
  margin-top: 32px;
}

.review-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.review-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  transform: translateY(-3px);
}

.review-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.review-card__author {
  font-weight: 700;
  font-size: 1rem;
}

.review-card__district {
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.review-card__stars {
  display: flex;
  gap: 2px;
  margin-bottom: 14px;
}

.review-card__stars svg {
  width: 18px;
  height: 18px;
  fill: var(--color-warning);
  filter: drop-shadow(0 1px 2px rgba(245, 158, 11, 0.3));
}

.review-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.review-card__work {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border-light);
}

.review-card__source {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.review-card__source svg {
  fill: var(--color-success);
}

.reviews__show-more {
  text-align: center;
  margin-top: 32px;
}

/* =============================================
   ДЛЯ БИЗНЕСА
   ============================================= */
.business {
  padding: var(--section-padding) 0;
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.business::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.business::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.business h2,
.business .section-subtitle {
  color: #fff;
}

.business__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 36px;
  position: relative;
  z-index: 1;
}

.business__advantage {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.business__advantage:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.business__advantage svg {
  width: 22px;
  height: 22px;
  fill: var(--color-success);
  flex-shrink: 0;
}

.business__cta {
  text-align: center;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.business__advantage svg {
  width: 20px;
  height: 20px;
  fill: var(--color-success);
  flex-shrink: 0;
}

/* =============================================
   FAQ
   ============================================= */
.faq {
  padding: var(--section-padding) 0;
}

.faq__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  max-width: 800px;
  margin: 32px auto 0;
}

.faq__col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--color-surface);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-item.open {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 18px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: all 0.2s;
}

.faq-item__question:hover {
  color: var(--color-primary);
}

.faq-item__question svg {
  width: 20px;
  height: 20px;
  fill: var(--color-muted);
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.open .faq-item__question svg {
  transform: rotate(180deg);
  fill: var(--color-primary);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-item__answer {
  max-height: 500px;
}

.faq-item__answer-inner {
  padding: 0 20px 20px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

@media (min-width: 769px) {
  .faq__list {
    grid-template-columns: 1fr 1fr;
    gap: 12px 24px;
    max-width: none;
    align-items: start;
  }
}

/* =============================================
   ФИНАЛЬНЫЙ CTA
   ============================================= */
.cta-final {
  padding: var(--section-padding) 0;
  background: linear-gradient(135deg, #EFF6FF 0%, #F0F9FF 30%, #F5F3FF 100%);
  position: relative;
  overflow: hidden;
}

.cta-final::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-final__wrapper {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-final__form {
  margin-top: 32px;
  background: var(--color-surface);
  padding: 36px;
  border-radius: 20px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02), 0 12px 40px rgba(0,0,0,0.06);
  border: 1px solid rgba(226, 232, 240, 0.5);
}

/* =============================================
   КОНТАКТЫ
   ============================================= */
.contacts {
  padding: var(--section-padding) 0;
  background: var(--color-surface);
}

.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 32px;
}

.contacts__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contacts__item {
  display: flex;
  gap: 14px;
  padding: 12px;
  border-radius: 12px;
  transition: background 0.2s;
}

.contacts__item:hover {
  background: var(--color-primary-bg);
}

.contacts__item-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary-bg) 0%, rgba(124,58,237,0.05) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contacts__item-icon svg {
  width: 20px;
  height: 20px;
}

.contacts__item-label {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 2px;
}

.contacts__item-value {
  font-weight: 500;
  font-size: 0.9375rem;
}

.contacts__map {
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-border-light) 0%, var(--color-border) 100%);
  min-height: 400px;
  height: 100%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.contacts__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 400px;
  border: 0;
}

/* =============================================
   ПОДВАЛ
   ============================================= */
.footer {
  padding: 48px 0 24px;
  background: #0B1120;
  color: #94A3B8;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(37, 99, 235, 0.3) 50%, transparent 100%);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer__brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.footer__brand-desc {
  font-size: 0.875rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.footer__col-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 0.875rem;
  color: #94A3B8;
  transition: all 0.2s;
  display: inline-block;
}

.footer__links a:hover {
  color: #fff;
  transform: translateX(4px);
}

.footer__links span {
  font-size: 0.875rem;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8125rem;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__bottom a {
  color: #94A3B8;
}

.footer__bottom a:hover {
  color: #fff;
}

/* =============================================
   МОДАЛЬНЫЕ ОКНА
   ============================================= */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  overflow-y: auto;
  padding: 20px;
}

.modal-overlay.open {
  display: block;
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border-radius: 20px;
  max-width: 560px;
  width: 100%;
  margin: auto;
  position: relative;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
  transform: translateY(20px) scale(0.97);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-muted);
  transition: all 0.25s;
  z-index: 1;
}

.modal__close:hover {
  background: var(--color-error-bg);
  color: var(--color-error);
  transform: rotate(90deg);
}

.modal__header {
  padding: 28px 28px 0;
}

.modal__title {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.modal__subtitle {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-top: 6px;
  line-height: 1.5;
}

.modal__body {
  padding: 24px 28px 28px;
}

.modal__success {
  text-align: center;
  padding: 40px 28px;
}

.modal__success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
  animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =============================================
   ФОРМЫ
   ============================================= */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1rem;
  outline: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--color-surface);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error {
  border-color: var(--color-error);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 1px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.form-checkbox__text {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.form-checkbox__text a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-checkbox__text a:hover {
  color: var(--color-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* =============================================
   АНИМАЦИИ
   ============================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* =============================================
   ПРЕДЗАГРУЗКА
   ============================================= */
.skeleton {
  background: linear-gradient(90deg, var(--color-border-light) 25%, var(--color-border) 50%, var(--color-border-light) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s infinite ease-in-out;
  border-radius: 8px;
}

@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* =============================================
   ADAPTIVE: 1200px — уплотнение шапки
   ============================================= */
@media (max-width: 1200px) {
  .header-logo__tagline {
    display: none;
  }

  .header-nav {
    gap: 14px;
  }

  .header-actions {
    gap: 10px;
  }

  .header-actions .btn-sm {
    padding: 10px 14px;
  }
}

/* =============================================
   ADAPTIVE: 1024px
   ============================================= */
@media (max-width: 1024px) {
  :root {
    --section-padding: 60px;
  }

  .header-top__item:nth-child(2),
  .header-top__item:nth-child(3) {
    display: none;
  }

  .header-nav {
    gap: 12px;
  }

  .header-nav__link {
    font-size: 0.875rem;
  }

  .header-phone {
    font-size: 0.875rem;
  }

  .hero__container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero__image {
    max-width: 600px;
    margin: 0 auto;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  }

  .warranty__grid {
    grid-template-columns: 1fr;
  }

  .contacts__grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .ready-installation__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ready-installation__advantages {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =============================================
   ADAPTIVE: 768px — телефоны и узкие планшеты
   ============================================= */
@media (max-width: 768px) {
  :root {
    --section-padding: 48px;
    --header-height: 60px;
  }

  body {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .container {
    padding: 0 16px;
  }

  .section-title {
    font-size: clamp(1.375rem, 5vw, 1.75rem);
    padding: 0 4px;
  }

  .section-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 28px;
    padding: 0 4px;
  }

  .header-top {
    display: none;
  }

  .header-nav,
  .header-actions {
    display: none;
  }

  .header-logo__tagline {
    display: none;
  }

  .header-menu-btn {
    display: flex;
  }

  .header-main .container {
    padding: 0 16px;
    min-height: var(--header-height);
  }

  .header-logo__name {
    font-size: 1.0625rem;
  }

  .bottom-bar {
    display: flex;
  }

  .mobile-menu {
    display: block;
  }

  .hero {
    padding-top: calc(var(--header-height) + 28px);
    padding-bottom: 48px;
  }

  .hero__title {
    font-size: clamp(1.5rem, 6vw, 1.875rem);
  }

  .hero__subtitle {
    font-size: 0.9375rem;
  }

  .hero__buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero__buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero__trust-line {
    font-size: 0.8125rem;
  }

  .hero__image-badge {
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 12px 14px;
  }

  .trust-bar {
    padding: 24px 0;
  }

  .trust-bar__list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 8px;
  }

  .trust-bar__item {
    padding: 8px 10px;
  }

  .trust-bar__item:not(:last-child)::after {
    display: none;
  }

  .trust-bar__value {
    font-size: 1.25rem;
  }

  .trust-bar__label {
    font-size: 0.75rem;
    line-height: 1.35;
  }

  .task-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .products-grid,
  .cases-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .product-card__total-value {
    font-size: 1.5rem;
  }

  .products__show-more,
  .reviews__show-more,
  .cases__show-more {
    flex-direction: column;
    align-items: stretch;
  }

  .products__show-more .btn,
  .reviews__show-more .btn,
  .cases__show-more .btn {
    width: 100%;
  }

  .options-grid {
    grid-template-columns: 1fr;
  }

  .photo-upload-area {
    grid-template-columns: 1fr;
  }

  .picture-wall__card {
    width: 96px;
    height: 96px;
  }

  .cases-filters {
    display: flex;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 8px;
    padding-bottom: 8px;
    margin: 0 -16px;
    padding-left: 16px;
    padding-right: 16px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .cases-filters::-webkit-scrollbar {
    display: none;
  }

  .cases-filter-btn {
    flex-shrink: 0;
  }

  .comparison__table {
    grid-template-columns: 1fr;
  }

  .comparison__header,
  .comparison__cell {
    padding: 14px 16px;
  }

  .stages__list {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .team__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ready-installation__grid,
  .ready-installation__advantages {
    grid-template-columns: 1fr;
  }

  .warranty__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .faq__list {
    grid-template-columns: 1fr;
    max-width: none;
    gap: 10px;
  }

  .faq-item__question {
    padding: 14px 16px;
    font-size: 0.9375rem;
  }

  .installation__note {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }

  .tech-details__summary {
    padding: 14px 16px;
    font-size: 0.9375rem;
  }

  .tech-details .installation__grid {
    padding: 12px;
    margin-top: 0;
  }

  .contacts__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contacts__map,
  .contacts__map iframe {
    min-height: 260px;
  }

  .cta-final__form {
    padding: 20px 16px;
  }

  .footer {
    padding: 40px 0 28px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-input,
  .form-checkbox__text {
    font-size: 16px; /* iOS zoom prevention */
  }

  .works-table {
    min-width: 420px;
    font-size: 0.8125rem;
  }

  .works-table th,
  .works-table td {
    padding: 10px 12px;
  }

  .modal-overlay {
    padding: 12px;
    align-items: flex-end;
  }

  .modal {
    margin: 0 auto;
    max-height: calc(100vh - 24px);
    overflow-y: auto;
    border-radius: 16px;
  }

  .modal__body {
    padding: 16px;
  }

  .modal__header {
    padding: 16px 16px 0;
  }

  .business__grid {
    grid-template-columns: 1fr;
  }
}

/* =============================================
   ADAPTIVE: 480px — компактные телефоны
   ============================================= */
@media (max-width: 480px) {
  :root {
    --section-padding: 40px;
  }

  .container {
    padding: 0 14px;
  }

  .hero {
    padding-top: calc(var(--header-height) + 20px);
    padding-bottom: 40px;
  }

  .hero__title {
    font-size: 1.375rem;
    line-height: 1.25;
  }

  .hero__badge {
    font-size: 0.75rem;
    padding: 6px 10px;
  }

  .hero__image-badge {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .hero__image-date {
    margin-left: 0;
    text-align: left;
  }

  .hero__image-price {
    font-size: 1.125rem;
  }

  .trust-bar__list {
    gap: 8px;
  }

  .trust-bar__item {
    padding: 6px 4px;
  }

  .trust-bar__value {
    font-size: 1.125rem;
  }

  .task-grid {
    grid-template-columns: 1fr;
  }

  .installation__grid {
    grid-template-columns: 1fr;
  }

  .calculator__wrapper {
    border-radius: 12px;
  }

  .calculator__body {
    padding: 14px;
  }

  .stages__list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .case-card__details {
    grid-template-columns: 1fr;
  }

  .review-card {
    padding: 16px;
  }

  .review-card__header {
    flex-direction: column;
    gap: 8px;
  }

  .picture-wall__card {
    width: 88px;
    height: 88px;
  }

  .picture-wall__list {
    gap: 8px;
  }

  .bottom-bar {
    padding: 8px 12px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    gap: 8px;
  }

  .bottom-bar__btn {
    padding: 12px 8px;
    font-size: 0.8125rem;
    gap: 6px;
  }

  .btn-lg {
    padding: 14px 18px;
    font-size: 0.9375rem;
  }

  .btn-block {
    white-space: normal;
  }
}

/* =============================================
   ADAPTIVE: 360px — очень узкие экраны
   ============================================= */
@media (max-width: 360px) {
  .hero__title {
    font-size: 1.25rem;
  }

  .hero__subtitle {
    font-size: 0.875rem;
  }

  .header-logo__icon {
    width: 36px;
    height: 36px;
    font-size: 0.875rem;
  }

  .trust-bar__value {
    font-size: 1rem;
  }

  .trust-bar__label {
    font-size: 0.6875rem;
  }

  .product-card__total-value {
    font-size: 1.375rem;
  }

  .picture-wall__card {
    width: 78px;
    height: 78px;
  }

  .bottom-bar__btn svg {
    width: 16px;
    height: 16px;
  }
}

/* =============================================
   PREFERS-REDUCED-MOTION
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* =============================================
   ФОТОГРАФИИ ДО / ПОСЛЕ (SLIDER)
   ============================================= */
.before-after {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--color-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.before-after__before,
.before-after__after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.before-after__before img,
.before-after__after img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.before-after__after {
  clip-path: inset(0 0 0 50%);
}

.before-after__slider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #fff;
  cursor: ew-resize;
  z-index: 2;
  transform: translateX(-50%);
}

.before-after__slider::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
  transition: transform 0.2s;
}

.before-after__slider:hover::after {
  transform: translate(-50%, -50%) scale(1.1);
}

.before-after__label {
  position: absolute;
  bottom: 12px;
  padding: 6px 14px;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  color: #fff;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  z-index: 3;
  letter-spacing: 0.02em;
}

.before-after__label--before {
  left: 12px;
}

.before-after__label--after {
  right: 12px;
}

/* =============================================
   УТИЛИТАРНЫЕ КЛАССЫ ДЛЯ СКРЫТИЯ БЛОКОВ
   ============================================= */
.block-hidden {
  display: none !important;
}

/* Убираем лишний отступ при скрытии соседних блоков */
.section:has(+ .block-hidden) {
  padding-bottom: 0;
}

.section:has(.block-hidden + &) {
  padding-top: 0;
}