/* ============================================
   БАЗОВЫЕ СТИЛИ И ПЕРЕМЕННЫЕ
   ============================================ */

:root {
  /* Цветовая палитра */
  --color-bg-primary: #050505;
  --color-bg-secondary: rgba(255, 255, 255, 0.02);
  --color-bg-card: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
  --color-bg-input: #0A0A0A;
  --color-border-input: #333;

  --color-surface-border: rgba(255,255,255,0.05);
  --color-surface-border-top: rgba(255,255,255,0.15);
  --color-surface-border-bottom: rgba(0,0,0,0.5);
  --color-surface-highlight: rgba(255, 255, 255, 0.06);
  --surface-blur: 20px;

  --color-accent-pink: #00F0FF;
  --color-accent-blue: #00F0FF;
  --color-accent-purple: #00F0FF;
  --color-accent-soft: rgba(0, 240, 255, 0.10);
  --color-accent-weak: rgba(0, 240, 255, 0.06);

  --color-text-primary: #E0E0E0;
  --color-text-secondary: #C0C0C0;
  --color-text-muted: rgba(255, 255, 255, 0.5);

  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, rgba(0, 240, 255, 0.95) 0%, rgba(0, 240, 255, 0.6) 100%);
  --gradient-bg: radial-gradient(1000px circle at 50% -10%, rgba(0, 240, 255, 0.10) 0%, rgba(5, 5, 5, 1) 60%, rgba(5, 5, 5, 1) 100%);
  --gradient-border: linear-gradient(135deg, rgba(0, 240, 255, 0.9) 0%, rgba(0, 240, 255, 0.2) 100%);

  /* Эффекты свечения */
  --glow-pink: 0 0 34px rgba(0, 240, 255, 0.18);
  --glow-blue: 0 0 34px rgba(0, 240, 255, 0.18);
  --glow-purple: 0 0 34px rgba(0, 240, 255, 0.18);

  /* Типографика */
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --font-size-body: clamp(1rem, 1.2vw, 1.125rem);
  --font-size-h1: clamp(2.25rem, 5vw, 4.5rem);
  --font-size-h2: clamp(1.75rem, 4vw, 3rem);
  --font-size-h3: clamp(1.25rem, 3vw, 1.75rem);

  /* Spacing */
  --container-max-width: 1280px;
  --section-padding: clamp(72px, 8vw, 110px) 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;

  /* Transitions */
  --transition-base: all 0.25s ease;
  --transition-slow: all 0.5s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-padding);
  position: relative;
}

.will-animate {
  will-change: transform, opacity;
}

.benefit-card,
.why-need-card,
.calculator-wrapper,
.portfolio-media,
.type-card,
.case-card,
.stat-card,
.tech-feature,
.review-card,
.faq-item,
.guarantee-card,
.modal-content,
.portfolio-lightbox-dialog {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
}

/* ============================================
   ТИПОГРАФИКА
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-h1);
  font-weight: 800;
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: 600;
}

p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-body);
}

a {
  color: var(--color-accent-pink);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--color-accent-blue);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  font-size: clamp(2rem, 4vw, 3rem);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  margin: -2rem auto 3rem;
  max-width: 600px;
  color: var(--color-text-secondary);
  font-size: 1.125rem;
}

/* ============================================
   HEADER (Фиксированный)
   ============================================ */

.header {
  background: rgba(5, 5, 5, 0.8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1rem 0;
  z-index: 1000;
}

.header-fixed {
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 3rem;
  flex: 1;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
  cursor: pointer;
}

.footer-logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.accent {
  color: #00F0FF;
}

.header-nav {
  display: flex;
  gap: 2rem;
}

.header-nav a {
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-base);
}

.header-nav a:hover {
  color: var(--color-accent-blue);
  text-shadow: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

.phone-icon {
  font-size: 1.2rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  order: -1;
  flex-shrink: 0;
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  padding: 2rem;
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  border-bottom: 1px solid var(--color-surface-border);
  z-index: 999;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu a.mobile-phone {
  color: var(--color-accent-pink);
  font-weight: 700;
  font-size: 1.2rem;
  border-bottom: none;
}

/* ============================================
   КНОПКИ
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: rgba(5, 5, 5, 0.96);
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: var(--glow-pink);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--color-accent-pink);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  background: var(--color-accent-weak);
  box-shadow: var(--glow-pink);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  border-color: var(--color-accent-pink);
  background: var(--color-accent-weak);
}

.btn-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 34px rgba(0, 240, 255, 0.18);
  }
  50% {
    box-shadow: 0 0 48px rgba(0, 240, 255, 0.28);
  }
}

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

.btn-arrow {
  font-size: 1.25rem;
  transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
  transform: translateX(5px);
}

.header-btn {
  background: var(--gradient-primary);
  color: rgba(5, 5, 5, 0.96);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.header-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-pink);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 80vh;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background:
    radial-gradient(800px circle at 18% 30%, rgba(0, 240, 255, 0.20) 0%, rgba(0, 240, 255, 0) 55%),
    radial-gradient(900px circle at 78% 24%, rgba(255, 255, 255, 0.10) 0%, rgba(255, 255, 255, 0) 58%),
    radial-gradient(1100px circle at 62% 82%, rgba(0, 240, 255, 0.12) 0%, rgba(0, 240, 255, 0) 60%),
    radial-gradient(1400px circle at 50% 50%, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0) 62%);
  opacity: 1;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(900px circle at 50% 30%, rgba(0, 240, 255, 0.10) 0%, rgba(0, 240, 255, 0) 60%),
    linear-gradient(180deg, rgba(5, 5, 5, 0.55) 0%, rgba(5, 5, 5, 0.92) 65%, rgba(5, 5, 5, 1) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: none;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  display: inline-block;
  font-size: clamp(3rem, 6vw, 5.25rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin-bottom: 1.75rem;
  padding-bottom: 0.3em;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.62) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 60px rgba(0, 240, 255, 0.10);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
  max-width: 56ch;
  margin-bottom: 3rem;
  color: var(--color-text-secondary);
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1.25rem;
  justify-content: flex-start;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero--no-visual .hero-grid {
  grid-template-columns: 1fr;
}

.hero--no-visual .hero-showcase {
  display: none;
}

.hero--no-visual {
  min-height: auto;
  padding: 110px 0 72px;
}

.hero--no-visual .hero-copy {
  max-width: 900px;
}

.hero-copy {
  text-align: left;
}

.hero-showcase {
  position: relative;
  display: flex;
  justify-content: flex-end;
}

.hero-showcase-card {
  width: 100%;
  aspect-ratio: auto;
  border-radius: 20px;
  background: transparent;
  border: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
  position: relative;
  overflow: visible;
}

.hero-showcase-card::before,
.hero-showcase-card::after {
  display: none;
}

.hero-visual {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  -webkit-mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 80%, transparent 100%);
  object-fit: cover;
}

.hero-buttons .btn {
  border-radius: 14px;
}

.hero-buttons .btn-primary {
  position: relative;
  transform: translateZ(0);
}

.hero-buttons .btn-primary::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: inherit;
  background: radial-gradient(circle at 50% 50%, rgba(0, 240, 255, 0.32) 0%, rgba(0, 240, 255, 0) 65%);
  filter: blur(18px);
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: -1;
}

.hero-buttons .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.22), 0 18px 60px rgba(0, 240, 255, 0.22);
}

.hero-buttons .btn-primary:hover::before {
  opacity: 1;
}

.hero-buttons .btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-surface-border);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
}

.hero-buttons .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(0, 240, 255, 0.35);
  box-shadow: var(--glow-pink);
  transform: translateY(-2px);
}

.hero-float {
  position: absolute;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(0, 240, 255, 0.22) 0%, rgba(0, 240, 255, 0) 70%);
  filter: blur(22px);
  opacity: 0.85;
  animation: heroFloat 22s ease-in-out infinite;
}

.hero-float-1 {
  width: 560px;
  height: 560px;
  left: -180px;
  top: -160px;
  animation-duration: 26s;
}

.hero-float-2 {
  width: 460px;
  height: 460px;
  right: -160px;
  bottom: -200px;
  animation-duration: 30s;
  animation-delay: -8s;
}

@keyframes heroFloat {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(44px, -32px, 0) scale(1.08); }
}

.hero-tube {
  --r: 0deg;
  position: absolute;
  border-radius: 999px;
  border: 1px solid rgba(0, 240, 255, 0.22);
  background: rgba(0, 240, 255, 0.04);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.08), 0 0 64px rgba(0, 240, 255, 0.14);
  opacity: 0.6;
  animation: heroTube 28s ease-in-out infinite;
}

.hero-tube-1 {
  --r: 18deg;
  width: 560px;
  height: 140px;
  left: 52%;
  top: 14%;
  animation-duration: 30s;
}

.hero-tube-2 {
  --r: -12deg;
  width: 520px;
  height: 130px;
  left: -40px;
  top: 66%;
  animation-duration: 34s;
  animation-delay: -12s;
}

@keyframes heroTube {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(var(--r)); }
  50% { transform: translate3d(28px, -18px, 0) rotate(var(--r)); }
}

@media (max-width: 1024px) {
  .hero-grid {
    gap: 32px;
  }

  .hero-showcase {
    justify-content: flex-start;
  }

  .hero-showcase-card {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 110px 0 64px;
  }

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

  .hero-copy {
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-showcase {
    display: block;
  }
}

/* ============================================
   BENEFITS (Преимущества)
   ============================================ */

.section-benefits {
  background: transparent;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-flow: dense;
  grid-auto-rows: minmax(160px, auto);
  gap: 1.25rem;
}

.benefit-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 22px;
  padding: 1.75rem;
  text-align: left;
  position: relative;
  overflow: hidden;
  grid-column: span 4;
  transition: var(--transition-base);
}

.benefit-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  background:
    radial-gradient(700px circle at 30% 20%, rgba(0, 240, 255, 0.18) 0%, rgba(0, 240, 255, 0) 55%),
    radial-gradient(900px circle at 80% 70%, rgba(255, 255, 255, 0.10) 0%, rgba(255, 255, 255, 0) 60%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
  z-index: 0;
}

.benefit-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(0, 0, 0, 0) 50%);
  opacity: 0.65;
  pointer-events: none;
  z-index: 0;
}

.benefit-card > * {
  position: relative;
  z-index: 1;
}

.benefit-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-pink);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.18), 0 18px 70px rgba(0, 240, 255, 0.10);
}

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

.benefit-card--feature {
  grid-column: span 8;
  grid-row: span 2;
  padding: 2.25rem;
}

.benefit-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--color-accent-pink);
}

.benefit-icon svg {
  width: 100%;
  height: 100%;
}

.benefit-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
}

.benefit-desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .benefit-card {
    grid-column: span 6;
  }

  .benefit-card--feature {
    grid-column: span 12;
    grid-row: span 1;
  }
}

@media (max-width: 640px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .benefit-card,
  .benefit-card--feature {
    grid-column: auto;
  }
}

/* ============================================
   WHY NEED (Для чего нужна вывеска?)
   ============================================ */

.section-why-need {
  background: transparent;
}

.why-need-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.why-need-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition-base);
}

.why-need-card:hover {
  border-color: var(--color-accent-blue);
  box-shadow: var(--glow-blue);
  transform: translateY(-4px);
}

.why-need-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.why-need-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.why-need-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ============================================
   CALCULATOR (Калькулятор)
   ============================================ */

.section-calculator {
  background: radial-gradient(800px circle at 50% 0%, rgba(0, 240, 255, 0.06) 0%, transparent 60%);
}

.calculator-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 24px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.calculator-step {
  display: none;
}

.calculator-step.active {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.step-number {
  color: var(--color-accent-pink);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  text-align: center;
}

.calculator-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.calc-option {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: auto;
  padding: 24px;
  background: #111;
  border: 1px solid #333;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #fff;
  text-align: left;
  position: relative;
}

.calc-option:hover {
  border-color: #00F0FF;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.12);
  transform: translateY(-2px);
}

.calc-option.selected {
  border-color: #00F0FF;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.calc-option.selected::after {
  content: '✓';
  position: absolute;
  top: 12px;
  right: 12px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #00F0FF;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid rgba(0, 240, 255, 0.45);
  font-weight: 800;
  font-size: 13px;
  line-height: 1;
}

.calc-option-icon {
  font-size: 2.5rem;
  margin-bottom: 0;
}

.calc-option-title {
  font-size: 16px;
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  word-wrap: break-word;
}

 .calculator-step[data-step="1"] .calc-option-title {
   font-size: 14px;
 }

.calc-option-price {
  margin-top: auto;
  color: #00F0FF;
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
  align-self: flex-start;
}

.calc-option-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.calculator-checkboxes {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.calc-checkbox {
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
}

.calc-checkbox input {
  width: 20px;
  height: 20px;
  accent-color: var(--color-accent-pink);
}

.calc-checkbox-label {
  display: flex;
  justify-content: space-between;
  flex: 1;
  align-items: center;
  padding: 1rem;
  background: var(--color-bg-input);
  border: 1px solid transparent;
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 8px;
  transition: var(--transition-base);
}

.calc-checkbox input:checked + .calc-checkbox-label {
  background: var(--color-accent-weak);
  border: 1px solid var(--color-accent-pink);
}

.calc-checkbox-title {
  font-weight: 500;
}

.calc-checkbox-price {
  color: var(--color-accent-pink);
  font-weight: 600;
}

.calculator-progress {
  margin: 2rem 0;
}

.progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  transition: width 0.5s ease;
}

.calculator-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
}

/* ============================================
   PORTFOLIO (Портфолио)
   ============================================ */

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--color-text-secondary);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-base);
  font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent-pink);
  color: rgba(5, 5, 5, 0.96);
  border-color: var(--color-accent-pink);
  box-shadow: var(--glow-pink);
}

.portfolio-grid {
  column-count: 3;
  column-gap: 1.5rem;
}

.portfolio-item {
  display: inline-block;
  width: 100%;
  margin: 0 0 1.5rem;
  background: transparent;
  border-radius: 16px;
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  transition: var(--transition-base);
  cursor: pointer;
}

.portfolio-media {
  background: var(--color-bg-card);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  position: relative;
}

.portfolio-item:hover .portfolio-media {
  border-color: rgba(0, 240, 255, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.18), 0 18px 70px rgba(0, 240, 255, 0.10);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 0 1px rgba(0, 240, 255, 0.18), 0 18px 70px rgba(0, 240, 255, 0.10);
}

.portfolio-item img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: var(--transition-base);
}

.portfolio-item:hover img {
  transform: scale(1.06);
  filter: brightness(1.06);
}

.portfolio-overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.25rem 1.25rem 1.1rem;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(5, 5, 5, 0.88) 70%, rgba(5, 5, 5, 0.98) 100%);
}

.portfolio-title {
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 0.35rem;
  color: var(--color-text-primary);
}

.portfolio-info {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.portfolio-lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.75);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.portfolio-lightbox.active {
  display: flex;
}

.portfolio-lightbox-dialog {
  width: min(1100px, 100%);
  max-height: 90vh;
  overflow: auto;
  border-radius: 22px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65);
}

.portfolio-lightbox-media {
  position: relative;
}

.portfolio-lightbox-media img {
  width: 100%;
  height: auto;
  display: block;
}

.portfolio-lightbox-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.portfolio-lightbox-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-surface-border);
  background: rgba(0, 0, 0, 0.35);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  color: var(--color-text-primary);
  cursor: pointer;
}

@media (max-width: 1024px) {
  .portfolio-grid {
    column-count: 2;
  }
}

@media (max-width: 640px) {
  .portfolio-grid {
    column-count: 1;
  }
}

/* ============================================
   CASES (Кейсы)
   ============================================ */

.section-cases {
  background: transparent;
}

.cases-grid {
  display: grid;
  gap: 3rem;
}

.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: var(--color-bg-card);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
}

.case-image {
  position: relative;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.case-card:hover .case-image img {
  transform: scale(1.1);
}

.case-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.case-title {
  font-size: 1.5rem;
  color: var(--color-accent-pink);
}

.case-task h4,
.case-solution h4,
.case-result h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent-blue);
}

.case-task p,
.case-solution p,
.case-result p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* ============================================
   STEPS (Этапы)
   ============================================ */

.steps-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.step-item {
  flex: 1;
  text-align: center;
  position: relative;
}

.step-number-circle {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: var(--glow-pink);
}

.step-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  filter: drop-shadow(var(--glow-blue));
}

.step-title-lg {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.step-desc-lg {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.step-connector {
  position: absolute;
  top: 30px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-pink) 0%, var(--color-accent-blue) 100%);
  z-index: -1;
}

/* ============================================
   TYPES (Виды вывесок)
   ============================================ */

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.type-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition-base);
}

.type-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-purple);
  box-shadow: var(--glow-purple);
}

.type-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.type-content {
  padding: 1.5rem;
}

.type-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.type-desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.type-price {
  color: var(--color-accent-pink);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ============================================
   ABOUT (О компании)
   ============================================ */

.section-about {
  background: transparent;
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.about-text h2 {
  margin-bottom: 1.5rem;
}

.about-text {
  max-width: 65ch;
}

.about-text p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-accent-pink);
  box-shadow: var(--glow-pink);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* ============================================
   TECH (Технологии)
   ============================================ */

.tech-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.tech-text h3 {
  margin-bottom: 1rem;
  margin-top: 1.5rem;
}

.tech-text p {
  margin-bottom: 1rem;
}

.tech-text ul {
  list-style: none;
  padding-left: 0;
  margin: 1rem 0;
}

.tech-text li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.75rem;
  color: var(--color-text-secondary);
}

.tech-text li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-accent-pink);
  font-weight: bold;
}

.tech-features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.tech-feature {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 12px;
  padding: 1.5rem;
  transition: var(--transition-base);
}

.tech-feature:hover {
  border-color: var(--color-accent-blue);
  box-shadow: var(--glow-blue);
}

.tech-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.tech-feature h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.tech-feature p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ============================================
   REVIEWS (Отзывы)
   ============================================ */

.section-reviews {
  background: transparent;
}

.reviews-carousel {
  position: relative;
  overflow: hidden;
  padding: 2rem 0;
}

.review-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 16px;
  padding: 2rem;
  max-width: 600px;
  margin: 0 auto;
}

.review-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.review-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent-pink);
}

.review-author {
  font-weight: 600;
  font-size: 1.125rem;
}

.review-company {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.review-rating {
  color: #FFD700;
  font-size: 1.2rem;
}

.review-text {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-style: italic;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-top: 2rem;
}

.carousel-btn {
  width: 50px;
  height: 50px;
  border: 1px solid var(--color-accent-pink);
  background: transparent;
  border-radius: 50%;
  color: var(--color-accent-pink);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.carousel-btn:hover {
  background: var(--color-accent-pink);
  color: rgba(5, 5, 5, 0.96);
  box-shadow: var(--glow-pink);
}

.carousel-dots {
  display: flex;
  gap: 0.5rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: var(--transition-base);
}

.carousel-dot.active {
  background: var(--color-accent-pink);
  width: 30px;
  border-radius: 5px;
}

/* ============================================
   FAQ
   ============================================ */

.section-faq {
  background: transparent;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 12px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 1.5rem;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-base);
}

.faq-question:hover {
  color: var(--color-accent-pink);
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--color-accent-pink);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, padding 0.5s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================
   GUARANTEES (Гарантии)
   ============================================ */

.guarantees-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.guarantee-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: var(--transition-base);
}

.guarantee-card:hover {
  border-color: var(--color-accent-purple);
  box-shadow: var(--glow-purple);
  transform: translateY(-4px);
}

.guarantee-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.guarantee-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.guarantee-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============================================
   CTA FINAL (Финальный призыв)
   ============================================ */

.section-cta-final {
  background: radial-gradient(900px circle at 50% 0%, rgba(0, 240, 255, 0.08) 0%, transparent 60%);
}

.cta-final-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.cta-final-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}

.cta-final-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
}

.cta-form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cta-input {
  flex: 1;
  padding: 1rem 1.5rem;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-input);
  border-radius: 8px;
  color: var(--color-text-primary);
  font-size: 1rem;
  height: 56px;
  transition: var(--transition-base);
}

.cta-input:focus {
  outline: none;
  border-color: var(--color-accent-pink);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.cta-input::placeholder {
  color: var(--color-text-muted);
}

.cta-checkbox {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.cta-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent-pink);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-top: 1px solid var(--color-surface-border);
  padding: 4rem 0 2rem;
}

.footer-main {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
  align-items: start;
}

.footer-column h4 {
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

.footer-logo {
  display: inline-flex;
  margin-bottom: 1rem;
}

.footer-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.footer-cta-wrap {
  margin-bottom: 1.5rem;
}

.footer-cta-text {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

.social-link:hover {
  background: var(--color-accent-pink);
  color: white;
  box-shadow: var(--glow-pink);
  transform: translateY(-4px);
}

.footer-title {
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.95rem;
  transition: var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-accent-blue);
  padding-left: 5px;
}

.footer-contacts {
  list-style: none;
}

.footer-contacts li {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.footer-icon-inline {
  font-size: 1.2rem;
}

.footer-link {
  color: rgba(255, 255, 255, 0.92);
}

.footer-link:hover {
  color: var(--color-accent-blue);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copy {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-privacy-link {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer-privacy-link:hover {
  color: var(--color-accent-pink);
}

/* ============================================
   PRIVACY (Политика)
   ============================================ */

.section-privacy {
  padding-top: 140px;
}

.privacy-card {
  max-width: 900px;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.privacy-content h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
}

.privacy-content h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.75rem;
}

.privacy-content p {
  margin-bottom: 1rem;
  line-height: 1.85;
}

.privacy-content ul,
.privacy-content ol {
  margin: 0.75rem 0 1rem 1.25rem;
}

.privacy-content li {
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

.privacy-content b,
.privacy-content strong {
  color: var(--color-text-primary);
}

.privacy-content a {
  word-break: break-word;
}

@media (max-width: 768px) {
  .section-privacy {
    padding-top: 110px;
  }

  .privacy-card {
    padding: 1.5rem;
    border-radius: 16px;
  }
}

/* ============================================
   MODAL
   ============================================ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-surface-border);
  border-top: 1px solid var(--color-surface-border-top);
  border-bottom: 1px solid var(--color-surface-border-bottom);
  -webkit-backdrop-filter: blur(var(--surface-blur));
  backdrop-filter: blur(var(--surface-blur));
  border-radius: 24px;
  padding: 3rem;
  max-width: 500px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: 2rem;
  cursor: pointer;
  transition: var(--transition-base);
}

.modal-close:hover {
  color: var(--color-accent-pink);
  transform: rotate(90deg);
}

.modal-title {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  text-align: center;
}

.modal-subtitle {
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 2rem;
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-input);
  border-radius: 8px;
  padding: 0.75rem 1.25rem;
  min-height: 56px;
  transition: var(--transition-base);
}

.form-row:focus-within {
  border-color: var(--color-accent-pink);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
}

.form-icon {
  font-size: 1.5rem;
}

.form-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-size: 1rem;
  outline: none;
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.policy-container {
  margin-top: 0.5rem;
}

.policy-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  cursor: pointer;
}

.policy-label input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent-pink);
}

.modal-submit {
  margin-top: 0.5rem;
}

.modal-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.modal-arrow {
  font-size: 1.25rem;
}

.calc-result-price {
  font-size: 3rem;
  font-weight: 800;
  text-align: center;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 1rem 0;
}

.calc-result-note {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--color-accent-weak);
  border-radius: 8px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
  .header-nav {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .header-inner {
    gap: 0.5rem;
  }
  
  .header-left {
    gap: 1rem;
    flex: 1;
  }
  
  .header-right {
    gap: 0.5rem;
    flex-shrink: 0;
  }
  
  .header-phone {
    font-size: 1rem;
    gap: 0;
  }
  
  .header-phone .phone-icon {
    font-size: 1.3rem;
    display: inline;
  }
  
  .header-phone span:not(.phone-icon) {
    display: none;
  }
  
  .header-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.65rem;
    white-space: nowrap;
  }
  
  .about-content,
  .tech-content {
    grid-template-columns: 1fr;
  }
  
  .case-card {
    grid-template-columns: 1fr;
  }
  
  .footer-main {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }
  
  .hero {
    min-height: auto;
    padding: 110px 0 64px;
  }
  
  .hero-title {
    font-size: clamp(2.6rem, 10vw, 3.6rem);
    line-height: 1.12;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

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

  .hero-copy {
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-showcase {
    display: block;
  }
  
  .btn {
    padding: 0.875rem 1.75rem;
    font-size: 0.9rem;
  }
  
  .calculator-wrapper {
    padding: 2rem 1.5rem;
  }
  
  .calculator-options {
    grid-template-columns: 1fr;
  }
  
  .steps-timeline {
    flex-direction: column;
    align-items: center;
  }
  
  .step-connector {
    display: none;
  }
  
  .cta-form-row {
    flex-direction: column;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
  }
  
  .modal-content {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: 1.75rem;
  }
  
  .hero-title {
    font-size: clamp(2.2rem, 11vw, 3rem);
  }
  
  .hero-subtitle {
    font-size: 0.95rem;
  }
  
  .benefits-grid,
  .why-need-grid,
  .types-grid {
    grid-template-columns: 1fr;
  }
  
  .header {
    padding: 0.75rem 0;
  }
  
  .header-inner {
    gap: 0.25rem;
    padding: 0 10px;
  }
  
  .logo {
    font-size: 1.2rem;
  }
  
  .hamburger {
    padding: 4px;
  }
  
  .header-left {
    gap: 0.5rem;
  }
  
  .header-right {
    gap: 0.25rem;
  }
  
  .header-phone {
    font-size: 1rem;
    gap: 0;
  }
  
  .header-phone .phone-icon {
    font-size: 1.3rem;
    display: inline;
  }
  
  .header-phone span:not(.phone-icon) {
    display: none;
  }
  
  .header-btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.6rem;
    white-space: nowrap;
    letter-spacing: 0;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  * {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .header,
  .mobile-menu {
    background: rgba(20, 20, 20, 0.95) !important;
    border-color: #333 !important;
    box-shadow: none !important;
  }

  .mobile-menu a {
    border-bottom-color: #333 !important;
  }

  .hero-bg,
  .hero-float,
  .hero-tube {
    display: none !important;
  }

  .benefit-card,
  .why-need-card,
  .calculator-wrapper,
  .portfolio-media,
  .type-card,
  .case-card,
  .stat-card,
  .tech-feature,
  .review-card,
  .faq-item,
  .guarantee-card,
  .modal-content,
  .portfolio-lightbox-dialog {
    background: rgba(20, 20, 20, 0.95) !important;
    border: 1px solid #333 !important;
    box-shadow: none !important;
  }

  .btn,
  .header-btn,
  .filter-btn,
  .carousel-btn,
  .portfolio-item {
    box-shadow: none !important;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* ============================================
   ANIMATIONS
   ============================================ */

/* Scroll animations будут добавлены через JavaScript */
[data-aos] {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos].aos-animate {
  opacity: 1;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}