/* ===== CSS RESET & VARIABLES ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{
  -webkit-text-size-adjust:100%;
  -ms-text-size-adjust:100%;
  scroll-behavior:smooth;
  font-size:16px;
}
*{-webkit-tap-highlight-color:transparent}

:root{
  /* Medical-Editorial Color Palette */
  --navy:#0c1a3a;
  --navy-light:#152347;
  --blue:#1e5faa;
  --blue-bright:#2d7ddf;
  --teal:#0ab4b0;
  --teal-light:#12d4cf;
  --mint:#e0f7f6;
  --white:#ffffff;
  --off-white:#f4f7fb;
  --gray-50:#f8fafc;
  --gray-100:#f1f5f9;
  --gray-200:#e2e8f0;
  --gray-300:#cbd5e1;
  --gray-400:#94a3b8;
  --gray-500:#64748b;
  --gray-600:#475569;
  --gray-700:#334155;
  --gold:#d4a035;
  --gold-light:#f0d78c;
  --red:#ef4444;
  --green:#10b981;
  /* Typography */
  --font-display:'Libre Baskerville',Georgia,'Times New Roman',serif;
  --font-body:'DM Sans',system-ui,-apple-system,sans-serif;
  /* Spacing */
  --section-py:80px;
  --container-px:20px;
  /* Transitions */
  --ease-out:cubic-bezier(0.16,1,0.3,1);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);
}

body{
  font-family:var(--font-body);
  color:var(--gray-700);
  line-height:1.7;
  background:var(--white);
  overflow-x:hidden;
}

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

a{color:var(--blue);text-decoration:none;transition:color .25s}
a:hover{color:var(--teal)}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--container-px);
  padding-right:var(--container-px);
}

/* ===== BUTTONS ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:16px;
  border:none;
  border-radius:12px;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s var(--ease-spring),box-shadow .25s,background .25s;
  min-height:48px;
  padding:14px 28px;
  line-height:1.2;
}
.btn:active{transform:scale(.97)}
.btn--primary{
  background:linear-gradient(135deg,var(--teal),var(--blue-bright));
  color:var(--white);
  box-shadow:0 4px 15px rgba(10,180,176,.3);
}
.btn--primary:hover{
  transform:translateY(-2px) scale(1.03);
  box-shadow:0 8px 25px rgba(10,180,176,.4);
  color:var(--white);
}
.btn--lg{font-size:18px;padding:18px 36px;border-radius:14px;min-height:56px}
.btn--sm{font-size:14px;padding:10px 20px;min-height:42px;border-radius:10px}

/* ===== SECTION TITLES ===== */
.section-title{
  font-family:var(--font-display);
  font-size:24px;
  font-weight:700;
  color:var(--navy);
  text-align:center;
  margin-bottom:12px;
  line-height:1.3;
}
.section-subtitle{
  text-align:center;
  color:var(--gray-500);
  font-size:16px;
  max-width:640px;
  margin:0 auto 40px;
  line-height:1.6;
}

/* ===== REVEAL ANIMATION ===== */
.reveal{
  opacity:0;
  transform:translateY(30px);
  transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--gray-200);
  transition:box-shadow .3s,padding .3s;
}
.nav--scrolled{
  box-shadow:0 2px 20px rgba(12,26,58,.08);
}
.nav__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
}
.nav__logo{
  font-family:var(--font-display);
  font-size:22px;
  font-weight:700;
  color:var(--navy);
  text-decoration:none;
}
.nav__logo span{color:var(--teal)}
.nav__hamburger{
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  background:none;
  border:none;
  cursor:pointer;
  padding:10px;
  z-index:1001;
}
.nav__hamburger span{
  display:block;
  width:24px;
  height:2.5px;
  background:var(--navy);
  border-radius:2px;
  transition:transform .3s var(--ease-out),opacity .2s;
}
.nav__hamburger.is-open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav__hamburger.is-open span:nth-child(2){opacity:0}
.nav__hamburger.is-open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

.nav__menu{
  position:fixed;
  top:0;right:0;
  width:280px;
  height:100vh;
  height:100dvh;
  background:var(--white);
  display:flex;
  flex-direction:column;
  padding:80px 30px 30px;
  gap:8px;
  transform:translateX(100%);
  transition:transform .4s var(--ease-out);
  box-shadow:-4px 0 20px rgba(0,0,0,.1);
  z-index:999;
}
.nav__menu.is-open{transform:translateX(0)}
.nav__link{
  font-size:16px;
  font-weight:500;
  color:var(--gray-600);
  padding:12px 0;
  border-bottom:1px solid var(--gray-100);
  text-decoration:none;
  transition:color .2s;
}
.nav__link:hover{color:var(--teal)}
.nav__cta{margin-top:12px}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero{
  padding-top:100px;
  padding-bottom:60px;
  background:linear-gradient(175deg,var(--off-white) 0%,var(--mint) 40%,var(--white) 100%);
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:-50%;right:-30%;
  width:80%;
  height:120%;
  background:radial-gradient(ellipse,rgba(10,180,176,.08) 0%,transparent 70%);
  pointer-events:none;
}
.hero__inner{
  display:flex;
  flex-direction:column;
  gap:40px;
  position:relative;
}
.hero__image{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
}
.hero__image-glow{
  position:absolute;
  width:280px;height:280px;
  background:radial-gradient(circle,rgba(10,180,176,.2) 0%,transparent 70%);
  border-radius:50%;
  animation:heroGlow 4s ease-in-out infinite;
}
@keyframes heroGlow{
  0%,100%{transform:scale(1);opacity:.6}
  50%{transform:scale(1.15);opacity:1}
}
.hero__product-img{
  position:relative;
  z-index:2;
  max-width:320px;
  animation:heroFloat 6s ease-in-out infinite;
}
@keyframes heroFloat{
  0%,100%{transform:translateY(0) rotate(0deg)}
  25%{transform:translateY(-12px) rotate(1deg)}
  75%{transform:translateY(8px) rotate(-1deg)}
}
.hero__particles{
  position:absolute;
  inset:0;
  z-index:1;
}
.hero__particles::before,
.hero__particles::after{
  content:'';
  position:absolute;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--teal);
  opacity:.4;
  animation:particleFloat 8s ease-in-out infinite;
}
.hero__particles::before{top:15%;left:10%;animation-delay:0s}
.hero__particles::after{bottom:20%;right:15%;animation-delay:3s;width:6px;height:6px;background:var(--blue)}
@keyframes particleFloat{
  0%,100%{transform:translateY(0) translateX(0);opacity:.3}
  50%{transform:translateY(-20px) translateX(10px);opacity:.7}
}

.hero__content{position:relative;z-index:2}
.hero__badge{
  display:inline-block;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));
  color:var(--white);
  font-size:13px;
  font-weight:600;
  padding:8px 16px;
  border-radius:50px;
  margin-bottom:20px;
  letter-spacing:.3px;
}
.hero h1{
  font-family:var(--font-display);
  font-size:28px;
  font-weight:700;
  color:var(--navy);
  line-height:1.25;
  margin-bottom:20px;
}
.hero__content p{
  color:var(--gray-600);
  font-size:16px;
  margin-bottom:16px;
  line-height:1.7;
}
.hero__benefits{
  list-style:none;
  margin:24px 0;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.hero__benefits li{
  font-size:15px;
  font-weight:500;
  color:var(--navy);
  padding:10px 14px;
  background:rgba(255,255,255,.7);
  border-radius:10px;
  border:1px solid var(--gray-200);
}
.hero__cta{
  width:100%;
  font-size:17px;
}
.hero__trust{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:20px;
  font-size:13px;
  font-weight:600;
  color:var(--gray-500);
}
.hero__trust span{
  display:flex;
  align-items:center;
  gap:4px;
}

/* =====================================================
   WHY CHOOSE US
   ===================================================== */
.why-choose{
  padding:var(--section-py) 0;
  background:var(--white);
}
.why-choose__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.why-choose__card{
  text-align:center;
  padding:30px 20px;
  background:var(--gray-50);
  border-radius:16px;
  border:1px solid var(--gray-200);
  transition:transform .3s var(--ease-spring),box-shadow .3s;
}
.why-choose__card:hover{
  transform:translateY(-4px);
  box-shadow:0 8px 30px rgba(12,26,58,.06);
}
.why-choose__card img{
  max-width:90px;
  margin:0 auto 16px;
}
.why-choose__card h3{
  font-family:var(--font-display);
  font-size:18px;
  color:var(--navy);
  margin-bottom:10px;
}
.why-choose__card p{
  font-size:14px;
  color:var(--gray-500);
  line-height:1.6;
}

/* =====================================================
   FORMULA / DISCOVER
   ===================================================== */
.formula{
  padding:var(--section-py) 0;
  background:var(--off-white);
}
.formula__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
.formula__item{
  background:var(--white);
  border-radius:16px;
  padding:28px 24px;
  border:1px solid var(--gray-200);
  position:relative;
  overflow:hidden;
  transition:transform .3s var(--ease-spring),box-shadow .3s;
}
.formula__item:hover{
  transform:translateY(-3px);
  box-shadow:0 8px 30px rgba(12,26,58,.06);
}
.formula__number{
  font-family:var(--font-display);
  font-size:48px;
  font-weight:700;
  color:var(--teal);
  opacity:.15;
  position:absolute;
  top:10px;right:20px;
  line-height:1;
}
.formula__item h3{
  font-family:var(--font-display);
  font-size:18px;
  color:var(--navy);
  margin-bottom:12px;
  padding-right:50px;
}
.formula__item p{
  font-size:15px;
  color:var(--gray-600);
  line-height:1.7;
}

/* =====================================================
   WHAT IS PRODENTIM
   ===================================================== */
.what-is{
  padding:var(--section-py) 0;
  background:var(--white);
}
.what-is__inner{
  display:flex;
  flex-direction:column-reverse;
  gap:30px;
}
.what-is__image{
  text-align:center;
}
.what-is__image img{
  max-width:320px;
  margin:0 auto;
  border-radius:20px;
  box-shadow:0 12px 40px rgba(12,26,58,.1);
}
.what-is__text p{
  font-size:16px;
  color:var(--gray-600);
  margin-bottom:16px;
  line-height:1.7;
}

/* =====================================================
   HOW IT WORKS
   ===================================================== */
.how-works{
  padding:var(--section-py) 0;
  background:linear-gradient(180deg,var(--navy) 0%,var(--navy-light) 100%);
  color:var(--white);
}
.how-works .section-title{color:var(--white)}
.how-works .section-subtitle{color:var(--gray-300)}
.how-works__desc{
  max-width:800px;
  margin:0 auto 48px;
}
.how-works__desc p{
  color:var(--gray-300);
  font-size:15px;
  line-height:1.7;
  margin-bottom:14px;
}
.how-works__steps{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
  position:relative;
}
.how-works__step{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:24px 20px;
  transition:background .3s,transform .3s var(--ease-spring);
}
.how-works__step:hover{
  background:rgba(255,255,255,.1);
  transform:translateY(-3px);
}
.how-works__step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  background:linear-gradient(135deg,var(--teal),var(--blue-bright));
  color:var(--white);
  font-weight:700;
  font-size:16px;
  border-radius:50%;
  margin-bottom:14px;
}
.how-works__step h3{
  font-family:var(--font-display);
  font-size:17px;
  color:var(--white);
  margin-bottom:10px;
}
.how-works__step p{
  font-size:14px;
  color:var(--gray-300);
  line-height:1.7;
}

/* =====================================================
   REVIEWS
   ===================================================== */
.reviews{
  padding:var(--section-py) 0;
  background:var(--off-white);
}
.reviews__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
.reviews__card{
  background:var(--white);
  border-radius:16px;
  padding:28px 24px;
  border:1px solid var(--gray-200);
  box-shadow:0 4px 15px rgba(12,26,58,.04);
  transition:transform .3s var(--ease-spring),box-shadow .3s;
}
.reviews__card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 35px rgba(12,26,58,.08);
}
.reviews__header{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:12px;
}
.reviews__avatar{
  width:52px;height:52px;
  border-radius:50%;
  object-fit:cover;
  border:3px solid var(--teal);
}
.reviews__name{
  font-size:16px;
  color:var(--navy);
  display:block;
}
.reviews__location{
  font-size:13px;
  color:var(--gray-400);
}
.reviews__stars{
  font-size:20px;
  color:var(--gold);
  margin-bottom:12px;
  letter-spacing:2px;
}
.reviews__text{
  font-size:15px;
  color:var(--gray-600);
  line-height:1.7;
  font-style:italic;
}

/* =====================================================
   PRICING
   ===================================================== */
.pricing{
  padding:var(--section-py) 0;
  background:linear-gradient(175deg,var(--white) 0%,var(--mint) 100%);
}
.pricing__timer{
  text-align:center;
  margin-bottom:40px;
}
.pricing__timer-label{
  font-size:14px;
  font-weight:600;
  color:var(--red);
  margin-bottom:8px;
  text-transform:uppercase;
  letter-spacing:1px;
}
.pricing__timer-display{
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-family:var(--font-display);
  font-size:48px;
  font-weight:700;
  color:var(--navy);
  background:var(--white);
  padding:12px 28px;
  border-radius:16px;
  box-shadow:0 4px 20px rgba(12,26,58,.08);
  border:2px solid var(--teal);
}
.pricing__timer-sep{
  color:var(--teal);
  animation:timerBlink 1s step-end infinite;
}
@keyframes timerBlink{0%,100%{opacity:1}50%{opacity:0}}

.pricing__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  max-width:900px;
  margin:0 auto;
}
.pricing__card{
  background:var(--white);
  border-radius:20px;
  padding:30px 24px;
  text-align:center;
  border:2px solid var(--gray-200);
  transition:transform .3s var(--ease-spring),box-shadow .3s;
  position:relative;
}
.pricing__card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 35px rgba(12,26,58,.08);
}
.pricing__card--popular{
  border-color:var(--teal);
  background:linear-gradient(175deg,rgba(10,180,176,.04) 0%,var(--white) 100%);
  box-shadow:0 8px 30px rgba(10,180,176,.12);
}
.pricing__label{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:1.5px;
  color:var(--gray-400);
  margin-bottom:8px;
}
.pricing__label--pop{
  background:linear-gradient(135deg,var(--teal),var(--blue-bright));
  color:var(--white);
  padding:6px 16px;
  border-radius:50px;
}
.pricing__bottles{
  font-family:var(--font-display);
  font-size:22px;
  font-weight:700;
  color:var(--navy);
  margin-bottom:4px;
}
.pricing__supply{
  font-size:14px;
  color:var(--gray-400);
  margin-bottom:16px;
}
.pricing__img{
  max-width:180px;
  margin:0 auto 16px;
}
.pricing__price{
  font-family:var(--font-display);
  font-size:42px;
  font-weight:700;
  color:var(--navy);
}
.pricing__price span{
  font-size:16px;
  font-weight:400;
  color:var(--gray-400);
}
.pricing__total{
  font-size:16px;
  color:var(--gray-500);
  margin-bottom:16px;
}
.pricing__total s{
  color:var(--red);
  font-size:14px;
}
.pricing__badges{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  justify-content:center;
  margin-bottom:16px;
}
.pricing__badge{
  background:var(--mint);
  color:var(--teal);
  font-size:12px;
  font-weight:700;
  padding:6px 12px;
  border-radius:50px;
  letter-spacing:.3px;
}
.pricing__btn{
  width:100%;
  font-size:17px;
  margin-bottom:16px;
}
.pricing__payments{
  max-width:160px;
  margin:0 auto;
  opacity:.6;
}

/* =====================================================
   INGREDIENTS
   ===================================================== */
.ingredients{
  padding:var(--section-py) 0;
  background:var(--white);
}
.ingredients__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.ingredients__card{
  background:var(--gray-50);
  border-radius:16px;
  padding:28px 24px;
  border:1px solid var(--gray-200);
  transition:transform .3s var(--ease-spring),box-shadow .3s;
}
.ingredients__card:hover{
  transform:translateY(-3px);
  box-shadow:0 8px 25px rgba(12,26,58,.06);
}
.ingredients__icon{
  font-size:32px;
  margin-bottom:12px;
}
.ingredients__card h3{
  font-family:var(--font-display);
  font-size:17px;
  color:var(--navy);
  margin-bottom:10px;
}
.ingredients__card p{
  font-size:14px;
  color:var(--gray-500);
  line-height:1.7;
}

/* =====================================================
   GUARANTEE
   ===================================================== */
.guarantee{
  padding:var(--section-py) 0;
  background:var(--off-white);
}
.guarantee__inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:30px;
}
.guarantee__image{
  text-align:center;
}
.guarantee__image img{
  max-width:200px;
  margin:0 auto;
}
.guarantee__text{
  text-align:center;
}
.guarantee__text>p{
  font-size:16px;
  color:var(--gray-600);
  margin-bottom:24px;
  line-height:1.7;
}
.guarantee__points{
  display:flex;
  flex-direction:column;
  gap:20px;
}
.guarantee__point{
  background:var(--white);
  border-radius:14px;
  padding:20px;
  border:1px solid var(--gray-200);
  text-align:left;
}
.guarantee__point h3{
  font-size:16px;
  color:var(--navy);
  margin-bottom:8px;
}
.guarantee__point p{
  font-size:14px;
  color:var(--gray-500);
  line-height:1.7;
}

/* =====================================================
   BENEFITS
   ===================================================== */
.benefits{
  padding:var(--section-py) 0;
  background:var(--white);
}
.benefits__list{
  max-width:800px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.benefits__item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  background:var(--gray-50);
  border-radius:14px;
  padding:24px 20px;
  border:1px solid var(--gray-200);
  transition:transform .3s var(--ease-spring),box-shadow .3s;
}
.benefits__item:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(12,26,58,.05);
}
.benefits__check{
  font-size:22px;
  flex-shrink:0;
  margin-top:2px;
}
.benefits__item h3{
  font-family:var(--font-display);
  font-size:16px;
  color:var(--navy);
  margin-bottom:8px;
}
.benefits__item p{
  font-size:14px;
  color:var(--gray-500);
  line-height:1.7;
}

/* =====================================================
   PROS AND CONS
   ===================================================== */
.pros-cons{
  padding:var(--section-py) 0;
  background:var(--off-white);
}
.pros-cons__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  max-width:900px;
  margin:0 auto;
}
.pros-cons__col{
  background:var(--white);
  border-radius:16px;
  padding:28px 24px;
  border:1px solid var(--gray-200);
}
.pros-cons__col h3{
  font-family:var(--font-display);
  font-size:20px;
  color:var(--navy);
  margin-bottom:18px;
}
.pros-cons__col ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.pros-cons__col li{
  font-size:15px;
  line-height:1.6;
  padding-left:28px;
  position:relative;
}
.pros-cons__col--pro li::before{
  content:'✅';
  position:absolute;
  left:0;top:0;
  font-size:14px;
}
.pros-cons__col--con li::before{
  content:'⚠️';
  position:absolute;
  left:0;top:0;
  font-size:14px;
}

/* =====================================================
   WHERE TO BUY
   ===================================================== */
.where-buy{
  padding:var(--section-py) 0;
  background:var(--white);
}
.where-buy__content{
  max-width:800px;
  margin:0 auto;
  background:var(--gray-50);
  border-radius:16px;
  padding:30px 24px;
  border:1px solid var(--gray-200);
}
.where-buy__content p{
  font-size:16px;
  color:var(--gray-600);
  line-height:1.8;
}
.where-buy__content a{
  color:var(--teal);
  font-weight:600;
  text-decoration:underline;
}

/* =====================================================
   HOW TO ORDER
   ===================================================== */
.how-order{
  padding:var(--section-py) 0;
  background:var(--off-white);
}
.how-order__inner{
  display:flex;
  flex-direction:column;
  gap:30px;
}
.how-order__step{
  background:var(--white);
  border-radius:14px;
  padding:24px 20px;
  border:1px solid var(--gray-200);
  margin-bottom:16px;
}
.how-order__step-num{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  color:var(--teal);
  background:var(--mint);
  padding:4px 12px;
  border-radius:50px;
  margin-bottom:10px;
  text-transform:uppercase;
  letter-spacing:1px;
}
.how-order__step h3{
  font-family:var(--font-display);
  font-size:17px;
  color:var(--navy);
  margin-bottom:10px;
}
.how-order__step p{
  font-size:15px;
  color:var(--gray-500);
  line-height:1.7;
}
.how-order__assurance{
  font-size:15px;
  color:var(--gray-500);
  line-height:1.7;
  margin-bottom:14px;
}
.how-order__image{
  text-align:center;
}
.how-order__image img{
  max-width:300px;
  margin:0 auto;
  border-radius:16px;
  box-shadow:0 8px 30px rgba(12,26,58,.08);
}

/* =====================================================
   FAQ
   ===================================================== */
.faq{
  padding:var(--section-py) 0;
  background:var(--white);
}
.faq__list{
  max-width:800px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq__item{
  background:var(--gray-50);
  border-radius:14px;
  border:1px solid var(--gray-200);
  overflow:hidden;
  transition:border-color .3s;
}
.faq__item.is-open{border-color:var(--teal)}
.faq__question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  width:100%;
  padding:20px 24px;
  background:none;
  border:none;
  cursor:pointer;
  text-align:left;
  font-family:var(--font-body);
  font-size:16px;
  font-weight:600;
  color:var(--navy);
  min-height:56px;
  transition:color .2s;
}
.faq__question:hover{color:var(--teal)}
.faq__arrow{
  flex-shrink:0;
  transition:transform .3s var(--ease-out);
  color:var(--teal);
}
.faq__item.is-open .faq__arrow{transform:rotate(180deg)}
.faq__answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s var(--ease-out),padding .3s;
}
.faq__item.is-open .faq__answer{
  max-height:500px;
}
.faq__answer p{
  padding:0 24px 20px;
  font-size:15px;
  color:var(--gray-500);
  line-height:1.7;
}

/* =====================================================
   FINAL CTA
   ===================================================== */
.final-cta{
  padding:var(--section-py) 0;
  background:linear-gradient(175deg,var(--navy) 0%,#091430 100%);
  position:relative;
  overflow:hidden;
}
.final-cta::before{
  content:'';
  position:absolute;
  top:-50%;left:-50%;
  width:200%;height:200%;
  background:radial-gradient(ellipse at center,rgba(10,180,176,.06) 0%,transparent 50%);
  pointer-events:none;
}
.final-cta__inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:30px;
  position:relative;
}
.final-cta__image img{
  max-width:300px;
  margin:0 auto;
  animation:heroFloat 6s ease-in-out infinite;
}
.final-cta h2{
  font-family:var(--font-display);
  font-size:24px;
  color:var(--white);
  line-height:1.3;
  margin-bottom:12px;
}
.final-cta__content p{
  font-size:16px;
  color:var(--gray-300);
  margin-bottom:20px;
}
.final-cta__pricing{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-bottom:24px;
}
.final-cta__old{
  font-size:16px;
  color:var(--gray-400);
}
.final-cta__old s{color:var(--red)}
.final-cta__new{
  font-size:28px;
  color:var(--teal-light);
}
.final-cta__new strong{
  font-family:var(--font-display);
  font-size:36px;
}
.final-cta__btn{
  width:100%;
  max-width:400px;
  font-size:18px;
  animation:ctaPulse 2s ease-in-out infinite;
}
@keyframes ctaPulse{
  0%,100%{box-shadow:0 4px 15px rgba(10,180,176,.3)}
  50%{box-shadow:0 4px 30px rgba(10,180,176,.6)}
}
.final-cta__secure{
  font-size:13px;
  color:var(--gray-400);
  margin-top:12px;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer{
  padding:60px 0 30px;
  background:var(--navy);
  color:var(--gray-300);
}
.footer__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:30px;
  margin-bottom:30px;
}
.footer__logo{
  font-size:20px;
  margin-bottom:12px;
  display:inline-block;
}
.footer__logo span{color:var(--teal)}
.footer__desc{
  font-size:14px;
  line-height:1.7;
  color:var(--gray-400);
}
.footer__col h4{
  font-family:var(--font-display);
  font-size:16px;
  color:var(--white);
  margin-bottom:14px;
}
.footer__col a{
  display:block;
  font-size:14px;
  color:var(--gray-400);
  padding:4px 0;
  transition:color .2s;
}
.footer__col a:hover{color:var(--teal)}
.footer__social{
  display:flex;
  gap:12px;
}
.footer__social-link{
  display:flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  background:rgba(255,255,255,.06);
  border-radius:10px;
  color:var(--gray-400);
  transition:background .2s,color .2s;
}
.footer__social-link:hover{
  background:var(--teal);
  color:var(--white);
}
.footer__disclaimer{
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  margin-bottom:20px;
}
.footer__disclaimer p{
  font-size:12px;
  color:var(--gray-500);
  line-height:1.7;
}
.footer__bottom{
  text-align:center;
}
.footer__bottom p{
  font-size:13px;
  color:var(--gray-500);
}

/* =====================================================
   POPUP
   ===================================================== */
.popup{
  position:fixed;
  bottom:20px;
  left:20px;
  right:20px;
  z-index:900;
  opacity:0;
  transform:translateY(100%);
  transition:opacity .4s var(--ease-out),transform .4s var(--ease-out);
  pointer-events:none;
}
.popup.is-visible{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.popup__inner{
  background:var(--white);
  border-radius:14px;
  padding:16px 20px;
  box-shadow:0 8px 30px rgba(12,26,58,.12);
  border:1px solid var(--gray-200);
  position:relative;
  max-width:380px;
}
.popup__close{
  position:absolute;
  top:8px;right:12px;
  font-size:20px;
  cursor:pointer;
  color:var(--gray-400);
  line-height:1;
  padding:4px;
}
.popup__content{
  display:flex;
  align-items:center;
  gap:12px;
}
.popup__icon{font-size:28px}
.popup__content strong{color:var(--navy);font-size:14px}
.popup__content span{color:var(--gray-500);font-size:13px}
.popup__content small{color:var(--teal);font-size:12px}

/* =====================================================
   SCROLL TO TOP
   ===================================================== */
.scroll-top{
  position:fixed;
  bottom:20px;
  right:20px;
  width:56px;height:56px;
  background:linear-gradient(135deg,var(--teal),var(--blue-bright));
  color:var(--white);
  border:none;
  border-radius:50%;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 15px rgba(10,180,176,.3);
  opacity:0;
  transform:translateY(20px);
  transition:opacity .3s,transform .3s,background .2s;
  z-index:800;
}
.scroll-top.is-visible{
  opacity:1;
  transform:translateY(0);
}
.scroll-top:hover{
  box-shadow:0 6px 20px rgba(10,180,176,.5);
}

/* =====================================================
   TABLET BREAKPOINT (576px+)
   ===================================================== */
@media(min-width:576px){
  .why-choose__grid{grid-template-columns:repeat(2,1fr)}
  .ingredients__grid{grid-template-columns:repeat(2,1fr)}
  .reviews__grid{grid-template-columns:repeat(2,1fr)}
  .pros-cons__grid{grid-template-columns:repeat(2,1fr)}
  .pricing__grid{grid-template-columns:repeat(2,1fr)}
  .formula__grid{grid-template-columns:repeat(2,1fr)}
  .how-works__steps{grid-template-columns:repeat(2,1fr)}
  .popup{left:20px;right:auto}
}

/* =====================================================
   TABLET+ BREAKPOINT (768px+)
   ===================================================== */
@media(min-width:768px){
  :root{--section-py:100px;--container-px:30px}
  .section-title{font-size:30px}
  .section-subtitle{font-size:17px}

  /* Nav desktop */
  .nav__hamburger{display:none}
  .nav__menu{
    position:static;
    width:auto;
    height:auto;
    flex-direction:row;
    align-items:center;
    padding:0;
    gap:8px;
    transform:none;
    box-shadow:none;
    background:transparent;
  }
  .nav__link{
    padding:8px 14px;
    border-bottom:none;
    font-size:14px;
  }

  /* Hero desktop */
  .hero{padding-top:120px;padding-bottom:80px}
  .hero__inner{
    flex-direction:row;
    align-items:center;
  }
  .hero__image{flex:0 0 45%}
  .hero__product-img{max-width:420px}
  .hero__content{flex:1}
  .hero h1{font-size:34px}
  .hero__cta{width:auto}

  /* What is */
  .what-is__inner{
    flex-direction:row;
    align-items:center;
  }
  .what-is__text{flex:1}
  .what-is__image{flex:0 0 40%}
  .what-is__image img{max-width:100%}

  /* How to order */
  .how-order__inner{
    flex-direction:row;
    align-items:flex-start;
  }
  .how-order__steps{flex:1}
  .how-order__image{flex:0 0 35%}
  .how-order__image img{max-width:100%}

  /* Guarantee */
  .guarantee__inner{
    flex-direction:row;
    align-items:center;
    text-align:left;
  }
  .guarantee__image{flex:0 0 200px}
  .guarantee__text{text-align:left;flex:1}

  /* Final CTA */
  .final-cta__inner{
    flex-direction:row;
    text-align:left;
  }
  .final-cta__image{flex:0 0 40%}
  .final-cta__content{flex:1}
  .final-cta__btn{width:auto}

  /* Footer */
  .footer__grid{grid-template-columns:2fr 1fr 1fr}
}

/* =====================================================
   DESKTOP BREAKPOINT (1024px+)
   ===================================================== */
@media(min-width:1024px){
  :root{--section-py:120px;--container-px:40px}
  .section-title{font-size:36px}

  .hero h1{font-size:42px}
  .hero__product-img{max-width:480px}

  .why-choose__grid{grid-template-columns:repeat(4,1fr)}
  .pricing__grid{grid-template-columns:repeat(3,1fr)}
  .reviews__grid{grid-template-columns:repeat(3,1fr)}
  .ingredients__grid{grid-template-columns:repeat(3,1fr)}
  .formula__grid{grid-template-columns:repeat(2,1fr)}
  .how-works__steps{grid-template-columns:repeat(3,1fr)}
}

/* =====================================================
   LARGE DESKTOP (1440px+)
   ===================================================== */
@media(min-width:1440px){
  .section-title{font-size:40px}
  .hero h1{font-size:48px}
  .container{max-width:1280px}
}