/* =========================================
   ЭпиДерм — Стили версии 3
   Файл: css/style_v3.css
   ========================================= */

/* 1. VARIABLES & RESET */
:root {
  --bg: #f4f6f8;
  --bg-soft: #eef2f5;
  --blue-soft: #bcd4e4;
  --blue-warm: #9cc0d6;
  --blue-deep: #6b9bb8;
  --blue-accent: #7aa9c2;
  --text: #2d3e50;
  --text-soft: #5a6b7c;
  --white: #ffffff;
  --shadow: 0 10px 40px rgba(107, 155, 184, 0.15);
  --shadow-hover: 0 20px 60px rgba(107, 155, 184, 0.25);
  --radius: 18px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Manrope', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  /* overflow-x: hidden; раскомментируйте при необходимости */
}

h1, h2, h3, h4, h5 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  line-height: 1.2;
}

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

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

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

/* =========================================
   2. HEADER & NAV
   ========================================= */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(156, 192, 214, 0.15);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: 1240px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 22px;
  color: var(--text);
}

/* Обновлённый логотип с img */
.logo-icon {
  width: 75px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon img {
  width: 75px;
  height: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-menu a {
  color: var(--text-soft);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 18px;
  border-radius: 10px;
  transition: var(--transition);
}

.nav-menu a:hover {
  background: var(--bg-soft);
  color: var(--blue-deep);
}

.nav-menu a.active {
  background: var(--blue-soft);
  color: var(--text);
}

.burger {
  display: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}

/* =========================================
   3. BUTTONS & FORMS
   ========================================= */
.btn {
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-warm), var(--blue-deep));
  color: #fff;
  box-shadow: 0 10px 30px rgba(107, 155, 184, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(107, 155, 184, 0.55);
}

.btn-secondary {
  background: var(--white);
  color: var(--text);
  border: 1px solid var(--blue-soft);
}

.btn-secondary:hover {
  background: var(--bg-soft);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-soft);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--blue-soft);
  border-radius: 12px;
  font-family: inherit;
  font-size: 15px;
  background: var(--white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue-deep);
  box-shadow: 0 0 0 4px rgba(107, 155, 184, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Валидация полей */
.form-group input:invalid:not(:placeholder-shown) {
  border-color: #e74c3c;
}

.form-group input:valid:not(:placeholder-shown) {
  border-color: #27ae60;
}

.form-error {
  color: #e74c3c;
  font-size: 12px;
  margin-top: 4px;
  display: none;
}

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

.form-group.success input {
  border-color: #27ae60;
}

/* Маска телефона */
.phone-input {
  font-family: monospace;
  letter-spacing: 0.5px;
}

.phone-input::placeholder {
  color: var(--text-soft);
  opacity: 0.7;
}

/* =========================================
   4. COMMON SECTIONS
   ========================================= */
section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 70px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: 44px;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.section-head p {
  color: var(--text-soft);
  font-size: 17px;
}

/* =========================================
   5. HERO SECTION
   ========================================= */
.hero {
  padding: 160px 0 120px;
  background:
    radial-gradient(ellipse at top right, rgba(188, 212, 228, 0.5), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(156, 192, 214, 0.3), transparent 60%),
    var(--bg);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-deep);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.hero-badge i {
  color: var(--blue-accent);
}

.hero h1 {
  font-size: 56px;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 span {
  color: var(--blue-deep);
  font-style: italic;
}

.hero p {
  font-size: 18px;
  color: var(--text-soft);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 560px;
  overflow: visible;
}

.hero-card {
  position: absolute;
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 20px;
  z-index: 3;
}

.hero-card-main {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 420px;
  padding: 28px;
  background: linear-gradient(160deg, #fff 0%, var(--bg-soft) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.product-bottle {
  width: 280px;
  height: 364px;
  background-image: url("../img/product_02.jpg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.hero-card-stat {
  top: 20px;
  left: 0;
  width: 180px;
  padding: 18px;
  text-align: center;
  z-index: 4;
}

.stat-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--blue-deep);
  font-family: 'Playfair Display', serif;
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--text-soft);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 6px;
  line-height: 1.3;
}

.hero-card-species {
  top: 20px;
  right: 0;
  width: 200px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 4;
}

.hero-card-safe {
  bottom: 20px;
  left: 0;
  width: 210px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 4;
}

.hero-card-float {
  bottom: 20px;
  right: 0;
  width: 230px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 4;
}

.species-icon,
.safe-icon,
.float-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
}

.species-icon {
  background: linear-gradient(135deg, var(--blue-soft), var(--blue-warm));
}

.safe-icon {
  background: linear-gradient(135deg, var(--blue-warm), var(--blue-deep));
}

.float-icon {
  background: linear-gradient(135deg, var(--blue-soft), var(--blue-warm));
}

.species-text h4,
.safe-text h4,
.float-text h4 {
  font-size: 14px;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 4px;
}

.species-text p,
.safe-text p,
.float-text p {
  font-size: 12px;
  color: var(--text-soft);
  margin: 0;
}

/* =========================================
   6. ABOUT / PRODUCT / INGREDIENTS / BLOG / CONTACTS
   ========================================= */
.about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-visual {
  aspect-ratio: 1;
  border-radius: 30px;
  background: radial-gradient(circle at 30% 30%, var(--blue-soft), transparent 60%),
              linear-gradient(135deg, var(--bg-soft), var(--blue-soft));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.about-icon-big { width: 220px; height: 220px; display: flex; align-items: center; justify-content: center; }
.about-icon-big i { font-size: 100px; color: var(--blue-deep); }
.about-float-badge {
  position: absolute;
  background: var(--white);
  padding: 14px 20px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
}
.about-float-badge i { color: var(--blue-deep); font-size: 22px; }
.about-float-badge strong { display: block; font-size: 14px; }
.about-float-badge span { font-size: 12px; color: var(--text-soft); }
.afb-1 { top: 40px; left: 30px; }
.afb-2 { bottom: 60px; right: 30px; }
.afb-3 { top: 50%; right: 40px; transform: translateY(-50%); }
.about h2 { font-size: 40px; margin-bottom: 22px; }
.about-lead { font-size: 17px; color: var(--text-soft); margin-bottom: 30px; }
.about-features { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.about-features li { display: flex; gap: 16px; align-items: flex-start; }
.feature-ico {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: var(--bg-soft); display: flex; align-items: center; justify-content: center;
  color: var(--blue-deep); font-size: 18px;
}
.about-features h4 { font-size: 16px; margin-bottom: 4px; font-family: 'Manrope', sans-serif; font-weight: 700; }
.about-features p { font-size: 14px; color: var(--text-soft); margin: 0; }

.product { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%); }
.product-showcase {
  background: var(--white);
  border-radius: 30px;
  padding: 60px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  margin-bottom: 50px;
}
.product-img {
  border-radius: 24px;
  background: linear-gradient(160deg, var(--blue-soft), var(--blue-warm));
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  position: relative;
}
.product-info h3 { font-size: 34px; margin-bottom: 14px; }
.product-info .subtitle { color: var(--blue-deep); font-weight: 600; margin-bottom: 20px; font-size: 15px; }
.product-info p { color: var(--text-soft); margin-bottom: 24px; }
.product-benefits { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 30px; }
.benefit { display: flex; gap: 12px; align-items: center; padding: 14px; background: var(--bg); border-radius: 12px; }
.benefit i { color: var(--blue-deep); font-size: 20px; }
.benefit span { font-size: 14px; font-weight: 600; }

.ingredients { background: var(--white); }
.ingr-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.ingr-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: 0.35s;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}
.ingr-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-warm), var(--blue-deep));
  transform: scaleX(0);
  transform-origin: left;
  transition: 0.4s;
}
.ingr-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  background: var(--white);
  border-color: var(--blue-soft);
}
.ingr-card:hover::before { transform: scaleX(1); }
.ingr-icon {
  width: 64px; height: 64px; border-radius: 18px;
  background: linear-gradient(135deg, var(--blue-soft), var(--blue-warm));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 28px; color: #fff;
}
.ingr-card h4 { font-size: 20px; margin-bottom: 10px; font-family: 'Manrope', sans-serif; font-weight: 700; }
.ingr-card p { color: var(--text-soft); font-size: 14px; }
.ingr-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.ingr-tag {
  font-size: 11px; padding: 4px 10px;
  background: var(--white); border: 1px solid var(--blue-soft);
  border-radius: 50px; color: var(--blue-deep); font-weight: 600;
}

.blog-preview { background: var(--bg); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card {
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; transition: 0.35s; cursor: pointer;
  text-decoration: none; color: inherit; display: block;
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.blog-img {
  height: 200px; display: flex; align-items: center; justify-content: center;
  font-size: 70px; color: #fff;
}
.blog-img.b1 { background: linear-gradient(135deg, #9cc0d6, #6b9bb8); }
.blog-img.b2 { background: linear-gradient(135deg, #bcd4e4, #9cc0d6); }
.blog-img.b3 { background: linear-gradient(135deg, #7aa9c2, #5a8ea8); }
.blog-body { padding: 28px; }
.blog-cat {
  display: inline-block; font-size: 11px; font-weight: 700;
  color: var(--blue-deep); letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 12px;
}
.blog-card h4 { font-size: 19px; margin-bottom: 10px; line-height: 1.35; font-family: 'Manrope', sans-serif; font-weight: 700; }
.blog-card p { color: var(--text-soft); font-size: 14px; margin-bottom: 16px; }
.blog-more { color: var(--blue-deep); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }

.contacts { background: var(--white); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: flex-start; }
.contact-info h3 { font-size: 32px; margin-bottom: 18px; }
.contact-info > p { color: var(--text-soft); margin-bottom: 34px; }
.contact-list { list-style: none; display: flex; flex-direction: column; gap: 22px; }
.contact-list li { display: flex; gap: 18px; align-items: center; }
.contact-ico {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-soft), var(--blue-warm));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: #fff; font-size: 20px;
}
.contact-list strong {
  display: block; font-size: 13px; color: var(--text-soft);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 2px;
}
.contact-list span { font-size: 16px; font-weight: 500; }
.contact-cta-box {
  background: var(--bg); padding: 40px; border-radius: 24px; text-align: center;
}
.contact-cta-box h3 { font-size: 28px; margin-bottom: 14px; }
.contact-cta-box p { color: var(--text-soft); margin-bottom: 24px; font-size: 15px; }

/* =========================================
   7. PAGE HERO / BLOG / TIPS / CTA / FOOTER
   ========================================= */
.page-hero {
  padding: 160px 0 80px; text-align: center;
  background: radial-gradient(ellipse at top, rgba(188,212,228,0.45), transparent 60%), var(--bg);
}
.page-hero h1 { font-size: 52px; margin-bottom: 20px; letter-spacing: -1px; }
.page-hero p { color: var(--text-soft); font-size: 18px; max-width: 640px; margin: 0 auto; }
.breadcrumbs {
  display: flex; gap: 8px; justify-content: center; align-items: center;
  font-size: 14px; color: var(--text-soft); margin-top: 20px;
}
.breadcrumbs a { color: var(--blue-deep); }
.breadcrumbs i { font-size: 10px; }

.tips-section { padding: 80px 0; background: var(--white); }
.tips-section .section-head { text-align: center; margin-bottom: 60px; }
.tips-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.tip {
  padding: 30px 24px; background: var(--bg); border-radius: var(--radius);
  text-align: center; transition: 0.3s;
}
.tip:hover { background: var(--white); box-shadow: var(--shadow); transform: translateY(-5px); }
.tip-ico {
  width: 64px; height: 64px; border-radius: 18px; margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--blue-soft), var(--blue-warm));
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 26px;
}
.tip h4 { font-size: 16px; margin-bottom: 8px; font-family: 'Manrope', sans-serif; font-weight: 700; }
.tip p { font-size: 13px; color: var(--text-soft); }

.cta { padding: 80px 0; }
.cta-box {
  background: linear-gradient(135deg, var(--blue-warm), var(--blue-deep));
  border-radius: 28px; padding: 60px; text-align: center; color: #fff;
  box-shadow: 0 20px 60px rgba(107,155,184,0.35);
}
.cta-box h2 { font-size: 38px; margin-bottom: 14px; }
.cta-box p { opacity: 0.9; margin-bottom: 28px; font-size: 17px; max-width: 560px; margin: 0 auto; }
.cta-box .btn { background: #fff; color: var(--blue-deep); }
.cta-box .btn:hover { background: var(--bg-soft); }

footer { background: var(--text); color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h5 { color: #fff; font-size: 15px; margin-bottom: 18px; font-family: 'Manrope', sans-serif; font-weight: 700; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 14px; transition: 0.2s; }
.footer-col a:hover { color: var(--blue-soft); }
.footer-col p { font-size: 14px; line-height: 1.7; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.socials { display: flex; gap: 10px; margin-top: 18px; }
.socials a {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px; transition: 0.25s;
}
.socials a:hover { background: var(--blue-deep); transform: translateY(-3px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px; text-align: center; font-size: 13px;
}

/* =========================================
   8. CHECKOUT PAGE
   ========================================= */
.checkout-page { padding-top: 100px; min-height: 100vh; background: var(--bg); }
.checkout-head { text-align: center; padding: 40px 0 50px; }
.checkout-head h1 { font-size: 42px; margin-bottom: 12px; }
.checkout-head p { color: var(--text-soft); font-size: 16px; }
.checkout-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 50px; margin-bottom: 60px; }
.product-summary {
  background: var(--white); padding: 32px; border-radius: var(--radius);
  box-shadow: var(--shadow); position: sticky; top: 120px;
}
.product-summary h3 { font-size: 24px; margin-bottom: 10px; }
.product-summary .subtitle { color: var(--blue-deep); font-size: 14px; margin-bottom: 16px; line-height: 1.4; }
.price-row { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; }
.price-current { font-size: 28px; font-weight: 700; color: var(--text); }
.price-old { font-size: 18px; color: var(--text-soft); text-decoration: line-through; }
.qty-control {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg); padding: 8px 12px; border-radius: 10px; width: fit-content;
}
.qty-btn {
  width: 32px; height: 32px; border-radius: 6px;
  background: var(--white); border: 1px solid var(--blue-soft);
  cursor: pointer; font-size: 18px; color: var(--text);
  display: flex; align-items: center; justify-content: center; transition: 0.2s;
}
.qty-btn:hover { background: var(--bg-soft); }
.qty-val { min-width: 24px; text-align: center; font-weight: 600; }
.checkout-form {
  background: var(--white); padding: 36px; border-radius: var(--radius); box-shadow: var(--shadow);
}
.checkout-form h2 { font-size: 24px; margin-bottom: 8px; }
.checkout-form > p { color: var(--text-soft); margin-bottom: 24px; font-size: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.delivery-box { margin: 24px 0; background: var(--bg); padding: 20px; border-radius: 12px; }
.delivery-option {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-bottom: 1px solid var(--bg-soft); cursor: pointer;
}
.delivery-option:last-child { border-bottom: none; }
.delivery-label { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.delivery-label input { accent-color: var(--blue-deep); width: 18px; height: 18px; cursor: pointer; }
.delivery-meta strong { display: block; font-size: 14px; font-weight: 600; }
.delivery-meta span { font-size: 12px; color: var(--text-soft); }
.delivery-price { font-weight: 700; color: var(--blue-deep); }
.payment-note {
  background: var(--bg-soft); padding: 16px; border-radius: 10px;
  margin: 24px 0; font-size: 13px; color: var(--text-soft);
  line-height: 1.5; border-left: 4px solid var(--blue-warm);
}
.checkout-features {
  display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; padding-bottom: 80px;
}
.checkout-features span {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-soft); font-size: 14px; font-weight: 500;
}
.checkout-features i { color: var(--blue-deep); font-size: 16px; }

/* =========================================
   9. RESPONSIVE
   ========================================= */
@media (max-width: 1100px) {
  .hero-card-species { width: 180px; }
  .hero-card-safe { width: 190px; }
  .hero-card-float { width: 210px; }
}

@media (max-width: 960px) {
  .hero-grid, .about-grid, .product-showcase, .contact-grid, .checkout-grid {
    grid-template-columns: 1fr; gap: 40px;
  }
  .product-summary { position: static; order: -1; }
  .hero h1 { font-size: 40px; }
  .section-head h2, .about h2 { font-size: 32px; }
  .blog-grid, .tips-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { height: 500px; max-width: 420px; margin: 0 auto; }
  .product-showcase, .checkout-form { padding: 28px; }
  .burger { display: block; }
  .nav-menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--white); flex-direction: column; padding: 20px; box-shadow: var(--shadow);
  }
  .nav-menu.open { display: flex; }
  .page-hero h1 { font-size: 38px; }
}

@media (max-width: 560px) {
  .footer-grid, .blog-grid, .tips-grid, .form-row { grid-template-columns: 1fr; }
  .product-benefits { grid-template-columns: 1fr; }
  section { padding: 70px 0; }
  .hero-visual { height: 480px; }
  .hero-card-main { width: 220px; height: 360px; }
  .product-bottle { width: 120px; height: 210px; }
  .hero-card-stat, .hero-card-species, .hero-card-safe, .hero-card-float {
    width: 160px; padding: 14px;
  }
  .hero-card-stat { top: 0; left: 0; }
  .hero-card-species { top: 0; right: 0; }
  .hero-card-safe { bottom: 0; left: 0; }
  .hero-card-float { bottom: 0; right: 0; }
  .stat-num { font-size: 24px; }
  .species-text h4, .safe-text h4, .float-text h4 { font-size: 12px; }
  .species-text p, .safe-text p, .float-text p { font-size: 11px; }
  .species-icon, .safe-icon, .float-icon { width: 40px; height: 40px; font-size: 16px; }
  .cta-box, .checkout-form { padding: 28px 20px; }
  .checkout-features { gap: 20px; }
}

/* =========================================
   10. UTILITIES
   ========================================= */
.reveal { opacity: 0; transform: translateY(30px); transition: 0.8s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Скрытие элементов для доступности */
.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;
}