/* ============================================
   AQUAFORM — Premium Plumbing Landing
   Light luxury aesthetic • Clean • Sophisticated
   ============================================ */

:root {
  /* Light premium palette */
  --bg-primary: #faf9f7;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-warm: #f5f3f0;
  
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a4a;
  --text-muted: #737373;
  
  --accent: #0d5c5c;
  --accent-hover: #0a4a4a;
  --accent-light: rgba(13, 92, 92, 0.08);
  --accent-gold: #b8860b;
  
  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.12);
  
  /* Typography */
  --font-main: 'Manrope', -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;
  --space-3xl: 7rem;
  
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 0.35s;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ============================================
   HEADER
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  background: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--duration) var(--ease-out);
}

.header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: var(--space-2xl);
}

.nav__links {
  display: flex;
  gap: var(--space-2xl);
}

.nav__links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration);
}

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

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header__phone {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
}

.burger span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--duration);
}

.burger--open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.burger--open span:nth-child(2) { opacity: 0; }
.burger--open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 10px;
  transition: all var(--duration) var(--ease-out);
}

.btn--primary {
  background: var(--accent);
  color: white;
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(13, 92, 92, 0.25);
}

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

.btn--outline:hover {
  background: var(--accent-light);
}

.btn--sm { padding: 0.625rem 1.25rem; font-size: 0.9rem; }
.btn--lg { padding: 1.125rem 2.25rem; font-size: 1rem; }

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

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(90px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse 100% 80% at 0% 50%, rgba(13, 92, 92, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(184, 134, 11, 0.04) 0%, transparent 50%);
}

.hero__pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(13, 92, 92, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 92, 92, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
}

.hero__container {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  padding: 0.35rem 1rem;
  background: var(--accent-light);
  border-radius: 100px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.3s forwards;
}

.hero__title .accent {
  color: var(--accent);
  font-style: italic;
}

.hero__subtitle {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.4s forwards;
}

.hero__cta {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.5s forwards;
}

.hero__trust {
  display: flex;
  gap: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.6s forwards;
}

.hero__trust-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero__trust-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

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

.hero__visual {
  position: relative;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.5s forwards;
}

.hero__card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.15) 0%, transparent 40%);
  pointer-events: none;
}

.hero__card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: var(--space-3xl) 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-title + .catalog__subtitle,
.section-title + .quiz__subtitle {
  margin-top: 0;
}

/* ============================================
   BRANDS
   ============================================ */

.brands {
  padding: var(--space-xl) 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.brands__label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.brands__list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.brands__list span {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ============================================
   BENEFITS
   ============================================ */

.benefits {
  background: var(--bg-secondary);
  padding: var(--space-3xl) 0;
}

.benefits .section-title {
  margin-bottom: var(--space-2xl);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.benefit-card {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: all var(--duration) var(--ease-out);
}

.benefit-card:hover {
  border-color: transparent;
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.benefit-card__icon {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.benefit-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.benefit-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   CATALOG
   ============================================ */

.catalog {
  background: var(--bg-primary);
}

.catalog__head {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.catalog__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.catalog__filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.filter-btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all var(--duration);
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-card {
  position: relative;
  background: var(--bg-secondary);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--duration) var(--ease-out);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-card__badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 0.35rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--accent);
  color: white;
  border-radius: 100px;
  z-index: 1;
}

.product-card__badge--recommend {
  background: var(--accent-gold);
  color: white;
}

.product-card__img {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--bg-warm);
}

.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.product-card:hover .product-card__img img {
  transform: scale(1.06);
}

.product-card__content {
  padding: var(--space-lg);
}

.product-card__content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.product-card__usp {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.product-card__price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

/* ============================================
   WHY US
   ============================================ */

.why-us {
  background: var(--bg-secondary);
}

.why-us__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
  align-items: start;
}

.why-us__stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--accent-light);
  border-radius: 24px;
}

.stat__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat__label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.testimonials {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.testimonial {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  transition: all var(--duration);
}

.testimonial:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.testimonial p {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

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

/* ============================================
   QUIZ
   ============================================ */

.quiz {
  background: var(--bg-primary);
}

.quiz__subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.quiz__box {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-2xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
}

.quiz__progress {
  margin-bottom: var(--space-xl);
}

.quiz__step {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-sm);
}

.quiz__bar {
  height: 6px;
  background: var(--bg-warm);
  border-radius: 100px;
  overflow: hidden;
}

.quiz__bar-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #0d7a7a);
  border-radius: 100px;
  width: 33%;
  transition: width var(--duration) var(--ease-out);
}

.quiz__question {
  display: none;
}

.quiz__question.active {
  display: block;
}

.quiz__question h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.quiz__options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.quiz__opt {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 2px solid var(--border);
  border-radius: 12px;
  transition: all var(--duration);
}

.quiz__opt:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* ============================================
   PROCESS
   ============================================ */

.process {
  background: var(--bg-secondary);
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.process__step {
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 20px;
  text-align: center;
  transition: all var(--duration);
}

.process__step:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.process__num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-md);
  opacity: 0.9;
}

.process__step h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.process__step p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   TRUST
   ============================================ */

.trust {
  background: var(--bg-primary);
}

.trust__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.trust__item {
  padding: var(--space-2xl);
  text-align: center;
  background: var(--bg-secondary);
  border-radius: 20px;
  border: 1px solid var(--border);
  transition: all var(--duration);
}

.trust__item:hover {
  box-shadow: var(--shadow-md);
}

.trust__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-light);
  border-radius: 50%;
}

.trust__item h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.trust__item p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================
   CTA FINAL
   ============================================ */

.cta-final {
  background: linear-gradient(135deg, var(--accent) 0%, #0a4a4a 100%);
  padding: var(--space-3xl) 0;
}

.cta-final__box {
  padding: var(--space-2xl);
  text-align: center;
  color: white;
}

.cta-final__box h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  margin-bottom: var(--space-md);
  color: white;
}

.cta-final__box > p {
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-xl);
  font-size: 1.1rem;
}

/* Base form styles */
.lead-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.lead-form input,
.lead-form button {
  margin: 0;
}

.cta-final .lead-form {
  justify-content: center;
  max-width: 520px;
  margin: 0 auto var(--space-md);
}

.cta-final .lead-form input {
  flex: 1;
  min-width: 180px;
  padding: 1.125rem 1.5rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text-primary);
  background: white;
  border: none;
  border-radius: 12px;
  transition: box-shadow var(--duration);
}

.cta-final .lead-form input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.5);
}

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

.cta-final__hint {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

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

.footer {
  padding: var(--space-2xl) 0 var(--space-lg);
  background: var(--text-primary);
  color: var(--bg-primary);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__col p,
.footer__col a {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
}

.footer__col a:hover {
  color: white;
}

.footer__col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: white;
}

.footer__col .logo {
  display: block;
  margin-bottom: var(--space-sm);
  color: white;
}

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer__bottom p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

/* ============================================
   MODALS
   ============================================ */

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease-out);
}

.modal[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}

.modal__content {
  position: relative;
  width: 100%;
  max-width: 460px;
  padding: var(--space-2xl);
  background: var(--bg-secondary);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.96);
  transition: transform var(--duration) var(--ease-out);
}

.modal[aria-hidden="false"] .modal__content {
  transform: scale(1);
}

.modal__content--wide {
  max-width: 720px;
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 44px;
  height: 44px;
  font-size: 1.5rem;
  color: var(--text-muted);
  border-radius: 12px;
  transition: all var(--duration);
}

.modal__close:hover {
  background: var(--bg-warm);
  color: var(--text-primary);
}

.modal__content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.modal__content > p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.modal .lead-form {
  flex-direction: column;
  max-width: none;
  gap: var(--space-md);
}

.modal .lead-form input {
  min-width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.modal .lead-form button {
  margin-top: var(--space-sm);
}

/* Quick View */
.quick-view {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.quick-view__img {
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-warm);
}

.quick-view__img img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.quick-view__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.quick-view__usp {
  color: var(--accent);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.quick-view__desc {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.quick-view__price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

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

@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero__cta {
    justify-content: center;
  }
  
  .hero__trust {
    justify-content: center;
  }
  
  .hero__visual {
    max-width: 560px;
    margin: 0 auto;
  }
  
  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .why-us__grid {
    grid-template-columns: 1fr;
  }
  
  .process__steps {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trust__grid {
    grid-template-columns: 1fr;
  }
  
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .quick-view {
    grid-template-columns: 1fr;
  }
}

/* Mobile menu panel & overlay - скрыты на desktop */
.nav-overlay,
.nav-panel {
  display: none;
}

@media (max-width: 768px) {
  :root {
    --space-2xl: 3.5rem;
    --space-3xl: 4rem;
  }
  
  .container {
    padding: 0 1.25rem;
  }
  
  section {
    padding: var(--space-2xl) 0;
  }
  
  .section-title {
    font-size: 1.75rem;
    margin-bottom: var(--space-lg);
    line-height: 1.2;
  }
  
  /* Header */
  .header__inner {
    padding: 0 1.25rem;
  }
  
  .logo {
    font-size: 1.5rem;
  }
  
  .header__phone {
    display: none;
  }
  
  .header__actions .btn {
    display: none;
  }
  
  .burger {
    display: flex;
    padding: 12px;
    margin: -12px -12px -12px 0;
  }
  
  /* Mobile overlay - затемнение фона */
  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    z-index: 1001;
    pointer-events: none;
    transition: background 0.3s var(--ease-out);
  }
  
  .nav-overlay.nav-overlay--visible {
    background: rgba(0, 0, 0, 0.4);
    pointer-events: auto;
  }
  
  /* Mobile menu panel - отдельная панель, вне шапки */
  .nav-panel {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(300px, 100%);
    background: var(--bg-secondary);
    transform: translateX(100%);
    transition: transform 0.3s var(--ease-out);
    z-index: 1002;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
    overflow-y: auto;
  }
  
  .nav-panel.nav-panel--open {
    transform: translateX(0);
  }
  
  .nav-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.25rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
  }
  
  .nav-panel__title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
  }
  
  .nav-panel__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-muted);
    border-radius: 10px;
    transition: background 0.2s, color 0.2s;
  }
  
  .nav-panel__close:hover {
    background: var(--bg-warm);
    color: var(--text-primary);
  }
  
  .nav-panel__links {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 0;
    flex: 1;
  }
  
  .nav-panel__links a {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    transition: background 0.2s;
  }
  
  .nav-panel__links a:hover {
    background: var(--bg-warm);
  }
  
  .nav-panel__actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem 1.25rem;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
  }
  
  .nav-panel__phone {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: border-color 0.2s;
  }
  
  .nav-panel__phone:hover {
    border-color: var(--accent);
  }
  
  .nav-panel__phone-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .nav-panel__phone-num {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent);
  }
  
  .nav-panel__actions .btn {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
  }
  
  /* На мобильных скрываем навигацию в шапке */
  .nav {
    display: none;
  }
  
  /* Hero */
  .hero {
    min-height: auto;
    padding: calc(72px + 2.5rem) 1.25rem 2.5rem;
  }
  
  .hero__label {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-sm);
  }
  
  .hero__title {
    font-size: 2rem;
    line-height: 1.15;
    margin-bottom: var(--space-md);
  }
  
  .hero__subtitle {
    font-size: 1rem;
    margin-bottom: var(--space-lg);
  }
  
  .hero__cta {
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: var(--space-xl);
  }
  
  .hero__cta .btn {
    width: 100%;
    padding: 1rem 1.5rem;
    min-height: 48px;
  }
  
  .hero__trust {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-lg);
    padding-top: var(--space-lg);
  }
  
  .hero__trust-item {
    text-align: center;
    min-width: 80px;
  }
  
  .hero__trust-num {
    font-size: 1.25rem;
  }
  
  .hero__visual {
    margin-top: 2rem;
  }
  
  .hero__card {
    border-radius: 16px;
  }
  
  /* Brands */
  .brands {
    padding: var(--space-lg) 0;
  }
  
  .brands__list {
    gap: var(--space-lg);
  }
  
  .brands__list span {
    font-size: 1rem;
  }
  
  /* Benefits */
  .benefits {
    padding: var(--space-2xl) 0;
  }
  
  .benefits__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .benefit-card {
    padding: var(--space-lg);
    border-radius: 16px;
  }
  
  /* Catalog */
  .catalog__head {
    margin-bottom: var(--space-lg);
  }
  
  .catalog__subtitle {
    font-size: 1rem;
    margin-bottom: var(--space-md);
  }
  
  .catalog__filters {
    justify-content: flex-start;
    overflow-x: auto;
    gap: 0.5rem;
    padding: 0.5rem 0 1rem;
    margin: 0 -1.25rem;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  
  .catalog__filters::-webkit-scrollbar {
    display: none;
  }
  
  .filter-btn {
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
  
  .catalog__grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .product-card {
    border-radius: 16px;
  }
  
  .product-card__content {
    padding: var(--space-md);
  }
  
  .product-card__content h3 {
    font-size: 1rem;
  }
  
  .product-card__footer .btn {
    min-height: 44px;
    padding: 0.5rem 1rem;
  }
  
  /* Why us */
  .why-us__stats {
    padding: var(--space-lg);
    gap: var(--space-xl);
  }
  
  .stat__num {
    font-size: 2.25rem;
  }
  
  .testimonial {
    padding: var(--space-lg);
    border-radius: 16px;
  }
  
  /* Quiz */
  .quiz__box {
    padding: var(--space-xl);
    border-radius: 20px;
  }
  
  .quiz__question h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-md);
  }
  
  .quiz__options {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .quiz__opt {
    width: 100%;
    padding: 1rem 1.25rem;
    min-height: 48px;
    text-align: center;
  }
  
  /* Process */
  .process__steps {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .process__step {
    padding: var(--space-lg);
    border-radius: 16px;
  }
  
  .process__num {
    font-size: 2rem;
  }
  
  /* Trust */
  .trust__grid {
    gap: var(--space-md);
  }
  
  .trust__item {
    padding: var(--space-xl);
    border-radius: 16px;
  }
  
  /* CTA Final */
  .cta-final {
    padding: var(--space-2xl) 0;
  }
  
  .cta-final__box {
    padding: var(--space-xl);
  }
  
  .cta-final__box h2 {
    font-size: 1.35rem;
    line-height: 1.3;
  }
  
  .cta-final .lead-form {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .cta-final .lead-form input {
    min-height: 48px;
    padding: 1rem 1.25rem;
  }
  
  .cta-final .lead-form button {
    min-height: 48px;
    width: 100%;
  }
  
  /* Footer */
  .footer {
    padding: var(--space-xl) 0 var(--space-lg);
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }
  
  .footer__col h4 {
    margin-bottom: var(--space-sm);
  }
  
  /* Forms */
  .lead-form {
    flex-direction: column;
  }
  
  .lead-form input {
    min-width: 100%;
    min-height: 48px;
  }
  
  /* Modals */
  .modal {
    padding: 1rem;
    align-items: flex-end;
  }
  
  .modal__content {
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 20px 20px 0 0;
  }
  
  .modal__content--wide .quick-view {
    gap: var(--space-lg);
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.75rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
}