/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green: #1a7c4f;
  --green-light: #25a266;
  --green-dark: #145f3c;
  --gold: #f5a623;
  --dark: #1a1a2e;
  --dark-soft: #2d2d44;
  --text: #333344;
  --text-light: #666680;
  --bg: #f8faf9;
  --white: #ffffff;
  --border: #e0e8e4;
  --shadow: 0 4px 20px rgba(26,124,79,0.12);
  --shadow-lg: 0 8px 40px rgba(26,124,79,0.18);
  --radius: 12px;
  --radius-lg: 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  border: 2px solid var(--green);
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--green-light);
  border-color: var(--green-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: var(--white);
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 15px;
  border: 2px solid rgba(255,255,255,0.6);
  transition: all 0.3s ease;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
}

.big-btn {
  padding: 18px 40px;
  font-size: 18px;
}

.btn-nav {
  background: var(--green);
  color: var(--white);
  padding: 10px 22px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
  white-space: nowrap;
}
.btn-nav:hover { background: var(--green-light); transform: translateY(-1px); }

.btn-product {
  display: block;
  text-align: center;
  background: var(--green);
  color: var(--white);
  padding: 12px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  margin-top: auto;
  transition: all 0.3s;
}
.btn-product:hover { background: var(--green-light); transform: translateY(-2px); box-shadow: var(--shadow); }

.btn-product-outline {
  display: block;
  text-align: center;
  background: transparent;
  color: var(--green);
  padding: 12px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  border: 2px solid var(--green);
  margin-top: auto;
  transition: all 0.3s;
}
.btn-product-outline:hover { background: var(--green); color: var(--white); }

.btn-pack {
  display: block;
  text-align: center;
  background: var(--green);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
}
.btn-pack:hover { background: var(--green-light); transform: translateY(-2px); }

.btn-mobile-cta {
  display: block;
  text-align: center;
  background: var(--green);
  color: var(--white) !important;
  padding: 14px 20px;
  border-radius: 50px;
  font-weight: 600;
  margin: 8px 0;
}

/* ===== SECTION TAGS ===== */
.section-tag {
  display: inline-block;
  background: rgba(26,124,79,0.1);
  color: var(--green);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-light);
  font-size: 17px;
  max-width: 600px;
  margin: 0 auto 40px;
  text-align: center;
  line-height: 1.7;
}

/* ===== POPUP ===== */
.popup-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.popup-overlay.active { display: flex; }

.popup-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  max-width: 460px;
  width: 100%;
  position: relative;
  text-align: center;
  animation: popupIn 0.4s ease;
}

@keyframes popupIn {
  from { opacity: 0; transform: scale(0.85) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.popup-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--border);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.popup-close:hover { background: #ff4444; color: white; }

.popup-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.popup-box h3 {
  font-size: 20px;
  color: var(--dark);
  margin-bottom: 10px;
}

.popup-subtitle {
  color: var(--text-light);
  font-size: 14px;
  margin-bottom: 24px;
  font-style: italic;
}

.popup-box input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 15px;
  font-family: inherit;
  margin-bottom: 12px;
  outline: none;
  transition: border-color 0.2s;
}
.popup-box input:focus { border-color: var(--green); }

.btn-popup {
  width: 100%;
  background: var(--green);
  color: var(--white);
  border: none;
  padding: 14px 20px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.3s;
}
.btn-popup:hover { background: var(--green-light); }

.popup-note { font-size: 12px; color: var(--text-light); margin-top: 12px; }

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}

.logo {
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}
.logo-green { color: var(--green); }
.logo-dark { color: var(--dark); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--green); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--dark);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 20px;
  background: var(--white);
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  color: var(--dark);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 60%, var(--green-light) 100%);
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
  padding-bottom: 60px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.3);
}

.hero h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.highlight {
  color: var(--gold);
  position: relative;
}

.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.9);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.hero-certs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
}
.hero-certs span {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.25);
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-note {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
}

.hero-wave {
  width: 100%;
  line-height: 0;
  margin-bottom: -2px;
}

/* ===== PROBLEMS ===== */
.problems {
  padding: 80px 0;
  background: var(--white);
}
.problems h2 {
  text-align: center;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.problems-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 32px;
}

.problem-item {
  background: var(--bg);
  border: 1.5px solid var(--border);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.2s;
  cursor: default;
}
.problem-item:hover {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
  transform: translateY(-2px);
}

.problems-cta {
  text-align: center;
}
.problems-cta p {
  color: var(--text-light);
  font-size: 14px;
  margin-bottom: 20px;
  font-style: italic;
}

/* ===== SCIENCE ===== */
.science {
  padding: 80px 0;
  background: var(--bg);
}

.science-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.science-text h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 32px;
}

.science-step {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.step-num {
  min-width: 36px;
  height: 36px;
  background: var(--green);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  margin-top: 2px;
}
.step-num.green { background: var(--green); }

.science-step strong { display: block; font-size: 15px; color: var(--dark); margin-bottom: 4px; }
.science-step p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

.highlight-step {
  background: rgba(26,124,79,0.06);
  padding: 16px;
  border-radius: var(--radius);
  border-left: 3px solid var(--green);
}

.science-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.science-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.highlight-card {
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  color: var(--white);
  border-color: transparent;
}
.highlight-card h4 { color: var(--white); }
.highlight-card p { color: rgba(255,255,255,0.9); }

.science-icon { font-size: 32px; margin-bottom: 12px; }
.science-card h4 { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.science-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ===== PRODUCTS ===== */
.products {
  padding: 80px 0;
  background: var(--white);
}
.products h2, .products .section-tag {
  text-align: center;
  display: block;
}
.products > .container > h2 {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.product-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--green);
}

.product-card.featured {
  border-color: var(--green);
  background: linear-gradient(160deg, #f0faf5 0%, #ffffff 100%);
  box-shadow: var(--shadow);
}

.product-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.product-icon { font-size: 40px; margin-bottom: 12px; }
.product-img {
  width: 100%;
  height: 180px;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 14px;
  background: #f8faf9;
  padding: 8px;
}
.product-card h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.product-tagline { font-size: 13px; color: var(--green); font-weight: 500; margin-bottom: 16px; }

.product-benefits { margin-bottom: 20px; flex: 1; }
.product-benefits li {
  font-size: 13px;
  color: var(--text);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.product-benefits li:last-child { border: none; }

.product-price {
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.price-label { font-size: 12px; color: var(--text-light); }
.price-main { font-size: 22px; font-weight: 800; color: var(--green); }
.price-note { font-size: 12px; color: var(--text-light); }

/* PACKS */
.packs-section {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
}
.packs-section h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 28px;
}

.packs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pack-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 20px;
  border: 1.5px solid var(--border);
  position: relative;
  transition: all 0.3s;
}
.pack-card:hover { box-shadow: var(--shadow); }

.pack-card.featured-pack {
  border-color: var(--green);
  background: linear-gradient(160deg, #f0faf5 0%, #ffffff 100%);
  transform: scale(1.04);
}

.pack-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 12px;
}

.pack-card h4 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.pack-card p { font-size: 14px; color: var(--text-light); margin-bottom: 16px; }
.pack-price { font-size: 24px; font-weight: 800; color: var(--green); margin-bottom: 20px; }

/* ===== PACKS EXTRA ===== */
.packs-sub {
  color: var(--text-light);
  font-size: 15px;
  margin-bottom: 28px;
  text-align: center;
}

.palier-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  margin: 32px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.palier-bonus { color: var(--green-dark); }
.palier-pro { color: #7b3fa0; }

.bonus-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
}

.packs-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 8px;
}
.packs-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 8px;
}

.packs-footer {
  text-align: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 15px;
  color: var(--text-light);
}
.packs-footer a { color: var(--green); font-weight: 600; }
.packs-footer a:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .packs-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .packs-grid-4, .packs-grid-3 { grid-template-columns: 1fr; }
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 80px 0;
  background: var(--bg);
}
.testimonials h2, .testimonials .section-tag { text-align: center; display: block; }
.testimonials > .container > h2 {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--border);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}
.testimonial-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.testimonial-stars { color: var(--gold); font-size: 18px; margin-bottom: 14px; letter-spacing: 2px; }

.testimonial-text {
  font-size: 14px;
  color: var(--text);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--green-light));
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-author strong { display: block; font-size: 14px; color: var(--dark); }
.testimonial-author span { font-size: 12px; color: var(--text-light); }

.testimonial-tag {
  display: inline-block;
  background: rgba(26,124,79,0.1);
  color: var(--green);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

/* ===== CERTIFICATIONS ===== */
.certifications {
  padding: 80px 0;
  background: var(--dark);
  text-align: center;
}
.certifications .section-tag { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); }
.certifications h2 { font-size: clamp(24px, 4vw, 36px); font-weight: 700; color: var(--white); margin-bottom: 12px; }
.certifications .section-sub { color: rgba(255,255,255,0.7); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.cert-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  transition: all 0.3s;
}
.cert-item:hover { background: rgba(255,255,255,0.1); transform: translateY(-3px); }
.cert-icon { font-size: 36px; margin-bottom: 12px; }
.cert-item strong { display: block; font-size: 16px; color: var(--white); margin-bottom: 8px; }
.cert-item p { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.5; }

/* ===== HOW TO ORDER ===== */
.how-to-order {
  padding: 80px 0;
  background: var(--white);
  text-align: center;
}
.how-to-order .section-tag { display: block; }
.how-to-order h2 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 48px;
}

.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.step-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  max-width: 280px;
  border: 1.5px solid var(--border);
  transition: all 0.3s;
}
.step-card:hover { box-shadow: var(--shadow); border-color: var(--green); }

.step-number {
  width: 56px;
  height: 56px;
  background: var(--green);
  color: var(--white);
  border-radius: 50%;
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-card h4 { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.step-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

.step-arrow {
  font-size: 28px;
  color: var(--green);
  padding: 0 16px;
  font-weight: 300;
}

.order-cta { text-align: center; }
.order-note { margin-top: 16px; font-size: 14px; color: var(--text-light); }

/* ===== FAQ ===== */
.faq {
  padding: 80px 0;
  background: var(--bg);
}
.faq .section-tag { display: block; text-align: center; }
.faq h2 {
  text-align: center;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 40px;
}

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow 0.2s;
}
.faq-item:hover { box-shadow: var(--shadow); }

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: color 0.2s;
}
.faq-question:hover { color: var(--green); }

.faq-icon {
  font-size: 22px;
  font-weight: 300;
  color: var(--green);
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}
.faq-answer p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ===== FINAL CTA ===== */
.final-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  text-align: center;
}
.final-cta h2 {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.final-cta p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.final-note {
  margin-top: 20px !important;
  font-size: 14px !important;
  color: rgba(255,255,255,0.75) !important;
  line-height: 1.8 !important;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  padding: 60px 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 12px; }
.footer-brand .logo span { color: rgba(255,255,255,0.9); }
.footer-brand .logo-green { color: var(--green-light); }
.footer-brand p { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.7; }

.footer-links h4, .footer-contact h4 {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-links a, .footer-contact a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-links a:hover, .footer-contact a:hover { color: var(--green-light); }

.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 8px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.4); margin-bottom: 4px; }
.disclaimer { font-style: italic; }

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 62px;
  height: 62px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.5);
  z-index: 9990;
  transition: all 0.3s;
  animation: pulse 2.5s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37,211,102,0.7);
  animation: none;
}

@keyframes pulse {
  0% { box-shadow: 0 4px 20px rgba(37,211,102,0.5); }
  50% { box-shadow: 0 4px 30px rgba(37,211,102,0.8), 0 0 0 10px rgba(37,211,102,0.1); }
  100% { box-shadow: 0 4px 20px rgba(37,211,102,0.5); }
}

.whatsapp-tooltip {
  position: absolute;
  right: 72px;
  background: var(--dark);
  color: var(--white);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}
.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--dark);
  border-right: none;
}
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .science-grid,
  .products-grid,
  .testimonials-grid,
  .certs-grid,
  .packs-grid,
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .btn-nav { display: none; }
  .menu-toggle { display: block; }

  .hero { padding: 60px 0 0; }
  .hero-cta { flex-direction: column; align-items: center; }

  .science-grid,
  .testimonials-grid,
  .certs-grid,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .products-grid,
  .packs-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid { flex-direction: column; gap: 16px; }
  .step-arrow { transform: rotate(90deg); }

  .pack-card.featured-pack { transform: scale(1); }

  .whatsapp-float { bottom: 20px; right: 20px; width: 56px; height: 56px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .section-sub { font-size: 15px; }
  .btn-primary, .btn-secondary { padding: 12px 22px; font-size: 14px; }
  .big-btn { padding: 15px 28px; font-size: 16px; }
  .packs-section { padding: 28px 16px; }
}