/* ===========================
   TINRIEF – Main Stylesheet
   Premium Health Tech Landing Page
   =========================== */

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

:root {
  --navy: #0d1b2a;
  --navy-mid: #1b2d42;
  --blue-accent: #1a56db;
  --blue-light: #3b82f6;
  --red-accent: #dc2626;
  --red-light: #ef4444;
  --green: #16a34a;
  --white: #ffffff;
  --off-white: #f8fafc;
  --light-gray: #f1f5f9;
  --mid-gray: #e2e8f0;
  --text-dark: #0f172a;
  --text-mid: #334155;
  --text-light: #64748b;
  --gold: #f59e0b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Merriweather', serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ===== COOKIE BANNER ===== */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--navy);
  color: var(--white);
  z-index: 9999;
  padding: 16px 24px;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
  transform: translateY(0);
  transition: transform 0.3s ease;
}
.cookie-banner.hidden { transform: translateY(110%); }
.cookie-content {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cookie-content p { flex: 1; font-size: 14px; opacity: 0.9; }
.cookie-content a { color: var(--blue-light); text-decoration: underline; }
.cookie-actions { display: flex; gap: 12px; }
.btn-cookie-accept {
  background: var(--blue-accent);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.2s;
}
.btn-cookie-accept:hover { background: var(--blue-light); }
.btn-cookie-decline {
  background: transparent;
  color: white;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  transition: border-color 0.2s;
}
.btn-cookie-decline:hover { border-color: white; }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-icon { font-size: 24px; }
.logo-text {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.5px;
}
.logo-text sup { font-size: 11px; color: var(--blue-accent); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-mid);
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--blue-accent); }
.main-nav .nav-cta {
  background: var(--blue-accent);
  color: white !important;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
}
.main-nav .nav-cta:hover { background: var(--navy); transform: translateY(-1px); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  background: white;
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  gap: 12px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-mid);
  padding: 8px 0;
  border-bottom: 1px solid var(--light-gray);
}
.mobile-nav .nav-cta {
  background: var(--blue-accent);
  color: white !important;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 600;
  border-bottom: none;
}

/* ===== HERO ===== */
.hero-badge-bar {
  background: var(--navy);
  color: white;
  display: flex;
  justify-content: center;
  gap: 32px;
  padding: 10px 24px;
  font-size: 13px;
  font-weight: 500;
  flex-wrap: wrap;
}
.hero-badge-bar span { opacity: 0.9; }
.hero {
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 50%, #f8fafc 100%);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 24px 80px;
}
.article-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue-accent);
  margin-bottom: 16px;
}
.hero-text h1 {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy);
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-mid);
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--blue-accent);
  line-height: 1;
}
.stat-label {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
  max-width: 100px;
}
.btn-primary {
  display: inline-block;
  background: var(--blue-accent);
  color: white;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 700;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(26,86,219,0.35);
}
.btn-primary:hover {
  background: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13,27,42,0.3);
}
.btn-large { padding: 20px 48px; font-size: 18px; }
.hero-disclaimer {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 12px;
}
.hero-image { position: relative; }
.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-img-wrapper img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center;
}
.hero-img-badge {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: white;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.hero-img-badge span { font-weight: 700; font-size: 16px; color: var(--gold); }
.hero-img-badge small { font-size: 11px; color: var(--text-light); }

/* ===== TRUST BAR ===== */
.trust-bar {
  background: var(--navy-mid);
  padding: 20px 0;
}
.trust-inner {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: white;
  font-size: 14px;
  font-weight: 500;
}
.trust-icon { font-size: 18px; }

/* ===== SECTION COMMON ===== */
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-accent);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.3;
}
.section-intro {
  font-size: 17px;
  color: var(--text-mid);
  max-width: 640px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ===== PROBLEM SECTION ===== */
.problem-section {
  padding: 80px 0;
  background: var(--white);
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.problem-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}
.problem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.problem-icon { font-size: 32px; margin-bottom: 16px; }
.problem-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.problem-card p { font-size: 14px; color: var(--text-mid); line-height: 1.6; }
.problem-solution-bridge {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border-left: 4px solid var(--blue-accent);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  font-size: 16px;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ===== PRODUCT INTRO ===== */
.product-intro {
  padding: 80px 0;
  background: var(--light-gray);
}
.product-intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.product-intro-images {
  width: 100%;
}
.intro-img-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.intro-img-featured {
  width: 100%;
  height: 320px;
  object-fit: contain;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 8px;
}
.intro-img-thumb {
  width: 100%;
  height: 320px;
  object-fit: contain;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px;
}
.product-intro-text h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.35;
}
.product-intro-text > p {
  font-size: 16px;
  color: var(--text-mid);
  margin-bottom: 28px;
  line-height: 1.7;
}
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.feature-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feature-check {
  width: 28px;
  height: 28px;
  background: var(--blue-accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-list li div strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.feature-list li div p { font-size: 14px; color: var(--text-mid); }

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 80px 0;
  background: var(--white);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.step-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.2s, transform 0.2s;
}
.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--mid-gray);
  line-height: 1;
  margin-bottom: 16px;
  font-family: var(--font-heading);
}
.step-img {
  width: 100%;
  height: 220px;
  object-fit: contain;
  background: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  padding: 6px;
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.step-card p { font-size: 14px; color: var(--text-mid); line-height: 1.6; }

/* ===== MULTIZONE ===== */
.multizone-section {
  padding: 80px 0;
  background: var(--navy);
  color: white;
}
.multizone-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.multizone-text .section-label { color: var(--blue-light); }
.multizone-text h2 {
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  line-height: 1.35;
}
.multizone-text > p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
  line-height: 1.7;
}
.zone-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.zone-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.zone-dot {
  width: 10px;
  height: 10px;
  background: var(--blue-light);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}
.zone-item strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: white;
  margin-bottom: 4px;
}
.zone-item p { font-size: 14px; color: rgba(255,255,255,0.65); }
.multizone-image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  width: 100%;
  height: 480px;
  object-fit: cover;
}

/* ===== CLINICAL ===== */
.clinical-section {
  padding: 80px 0;
  background: var(--light-gray);
}
.clinical-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.clinical-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: box-shadow 0.2s;
}
.clinical-card:hover { box-shadow: var(--shadow-md); }
.clinical-icon { font-size: 36px; margin-bottom: 16px; }
.clinical-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.clinical-card p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 16px;
}
.clinical-source {
  font-size: 12px;
  color: var(--text-light);
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: block;
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 80px 0;
  background: var(--white);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.testimonial-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  transition: box-shadow 0.2s;
}
.testimonial-card:hover { box-shadow: var(--shadow-md); }
.testimonial-card.featured {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border-color: var(--blue-accent);
  border-width: 2px;
}
.featured-label {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--blue-accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}
.stars { color: var(--gold); font-size: 18px; margin-bottom: 12px; }
.testimonial-text {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--navy);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 14px; color: var(--navy); }
.testimonial-author span { font-size: 12px; color: var(--text-light); }
.verified-badge {
  font-size: 12px;
  color: var(--green);
  font-weight: 600;
  margin-top: 12px;
}
.review-summary {
  display: flex;
  align-items: center;
  gap: 48px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 40px;
}
.review-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 100px;
}
.big-score {
  font-size: 56px;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}
.score-stars { color: var(--gold); font-size: 22px; }
.review-score span { font-size: 13px; color: var(--text-light); }
.review-bars { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-mid);
}
.bar-row > span:first-child { min-width: 28px; }
.bar-row > span:last-child { min-width: 32px; }
.bar {
  flex: 1;
  height: 8px;
  background: var(--mid-gray);
  border-radius: 4px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: var(--gold);
  border-radius: 4px;
}

/* ===== ORDER SECTION ===== */
.order-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 100%);
}
.order-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.order-product-img img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  height: 420px;
  object-fit: cover;
}
.order-badges {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.order-badges span {
  background: white;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
}
.order-details h2 {
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.order-subtitle {
  font-size: 15px;
  color: var(--text-light);
  margin-bottom: 28px;
}
.order-includes {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.order-includes h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.order-includes ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.order-includes li { font-size: 14px; color: var(--text-mid); }
.pricing-box {
  margin-bottom: 24px;
}
.price-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 6px;
}
.original-price {
  font-size: 20px;
  color: var(--text-light);
  text-decoration: line-through;
}
.current-price {
  font-size: 40px;
  font-weight: 800;
  color: var(--red-accent);
  line-height: 1;
}
.discount-badge {
  background: var(--red-accent);
  color: white;
  font-size: 14px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}
.price-note { font-size: 13px; color: var(--text-light); }
.btn-order {
  display: block;
  background: var(--red-accent);
  color: white;
  text-align: center;
  padding: 18px 32px;
  border-radius: var(--radius-sm);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(220,38,38,0.35);
}
.btn-order:hover {
  background: #b91c1c;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(185,28,28,0.35);
}
.guarantee-box {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: white;
  border: 1px solid var(--green);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 20px;
}
.guarantee-icon { font-size: 28px; flex-shrink: 0; }
.guarantee-box strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 4px;
}
.guarantee-box p { font-size: 13px; color: var(--text-mid); }
.payment-icons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.payment-icons span {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-mid);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--white);
}
.faq-section > .container > .section-label,
.faq-section > .container > .section-title {
  text-align: center;
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%;
  background: white;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}
.faq-question:hover { background: var(--off-white); }
.faq-arrow { font-size: 12px; color: var(--text-light); transition: transform 0.3s; }
.faq-question.open .faq-arrow { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 24px 20px;
  background: var(--off-white);
}
.faq-answer.open { display: block; }
.faq-answer p { font-size: 14px; color: var(--text-mid); line-height: 1.7; }

/* ===== FINAL CTA ===== */
.final-cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  padding: 80px 0;
  text-align: center;
  color: white;
}
.final-cta h2 {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}
.final-cta p {
  font-size: 18px;
  opacity: 0.8;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.final-cta .btn-primary {
  background: var(--red-accent);
  box-shadow: 0 4px 20px rgba(220,38,38,0.4);
}
.final-cta .btn-primary:hover {
  background: #b91c1c;
}
.cta-sub {
  font-size: 14px;
  opacity: 0.6;
  margin-top: 16px;
  margin-bottom: 0 !important;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--navy);
  color: white;
  padding: 60px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: white; }
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
  margin-bottom: 12px;
}
.footer-disclaimer {
  font-size: 12px !important;
  color: rgba(255,255,255,0.4) !important;
  font-style: italic;
}
.footer-links, .footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links h4, .footer-contact h4 {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: color 0.2s;
}
.footer-links a:hover { color: white; }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.65); }
.footer-certifications {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.cert-badge {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.footer-bottom {
  padding: 20px 0;
  background: rgba(0,0,0,0.2);
}
.footer-bottom p {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  text-align: center;
  margin-bottom: 4px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .clinical-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 48px 24px 60px;
  }
  .hero-text h1 { font-size: 28px; }
  .hero-img-wrapper img { height: 320px; }
  .hero-badge-bar { gap: 16px; font-size: 12px; }
  .trust-inner { gap: 20px; }
  .section-title { font-size: 26px; }
  .problem-grid { grid-template-columns: 1fr; }
  .product-intro-inner { grid-template-columns: 1fr; gap: 40px; }
  .steps-grid { grid-template-columns: 1fr; }
  .multizone-inner { grid-template-columns: 1fr; gap: 40px; }
  .multizone-image img { height: 300px; }
  .clinical-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .review-summary { flex-direction: column; gap: 24px; padding: 24px; }
  .order-inner { grid-template-columns: 1fr; gap: 40px; }
  .order-product-img img { height: 280px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .final-cta h2 { font-size: 26px; }
  .hero-stats { gap: 16px; }
}

@media (max-width: 480px) {
  .hero-text h1 { font-size: 24px; }
  .btn-primary { padding: 14px 24px; font-size: 15px; }
  .btn-large { padding: 16px 32px; font-size: 16px; }
  .current-price { font-size: 32px; }
}