/* ============================================
   NEUROPRIME - Medical Professional Design
   Mobile-First Responsive CSS
   ============================================ */
:root {
  --blue-900: #0F1B4C;
  --blue-800: #1E2D6F;
  --blue-700: #1E40AF;
  --blue-600: #2563EB;
  --blue-500: #3B82F6;
  --blue-400: #60A5FA;
  --blue-300: #93C5FD;
  --blue-200: #BFDBFE;
  --blue-100: #DBEAFE;
  --blue-50: #EFF6FF;
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --green: #059669;
  --green-light: #D1FAE5;
  --red: #DC2626;
  --red-light: #FEE2E2;
  --amber: #D97706;
  --font-head: 'Merriweather', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);
  --shadow-blue: 0 4px 20px rgba(37,99,235,0.25);
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --ease: 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
* { -webkit-tap-highlight-color: transparent; }
body { font-family: var(--font-body); background: var(--white); color: var(--gray-700); line-height: 1.7; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section-pad { padding: 56px 0; }
.text-center { text-align: center; }

.badge {
  display: inline-block;
  background: var(--blue-100);
  color: var(--blue-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
}

.stitle {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--blue-900);
  line-height: 1.3;
  margin-bottom: 14px;
}
.stitle em { font-style: normal; color: var(--blue-600); }

.sdesc {
  font-size: 1rem;
  color: var(--gray-500);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

/* ===== CTA BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-700));
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem; font-weight: 700;
  padding: 15px 34px;
  border-radius: 50px; border: none; cursor: pointer;
  min-height: 48px;
  transition: var(--ease);
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-blue);
  position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: 0.6s;
}
.btn-primary:hover::after { left: 100%; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,0.4); }
.btn-primary:active { transform: scale(0.97); }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: transparent;
  color: var(--blue-600);
  font-family: var(--font-body);
  font-size: 0.95rem; font-weight: 600;
  padding: 13px 28px;
  border-radius: 50px;
  border: 2px solid var(--blue-300);
  cursor: pointer; min-height: 48px;
  transition: var(--ease);
}
.btn-outline:hover { background: var(--blue-50); border-color: var(--blue-600); }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-200);
  padding: 14px 0;
  transition: var(--ease);
}
.navbar.scrolled { padding: 8px 0; box-shadow: var(--shadow-md); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--font-head); font-size: 1.3rem; font-weight: 700; color: var(--blue-900); }
.nav-logo em { font-style: normal; color: var(--blue-600); }
.nav-logo sup { font-size: 0.5em; color: var(--blue-500); }

.nav-links { display: none; gap: 28px; align-items: center; }
.nav-links a { color: var(--gray-600); font-size: 0.9rem; font-weight: 500; transition: var(--ease); position: relative; }
.nav-links a:hover { color: var(--blue-600); }
.nav-links a::after { content:''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--blue-600); transition: var(--ease); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: none; }
.nav-cta .btn-primary { padding: 10px 22px; font-size: 0.85rem; }

.hamburger { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; z-index: 1001; min-width: 44px; min-height: 44px; align-items: center; justify-content: center; }
.hamburger span { width: 22px; height: 2px; background: var(--blue-700); transition: var(--ease); border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.mobile-menu {
  position: fixed; top: 0; right: -100%; width: 80%; max-width: 300px; height: 100vh;
  background: var(--white); border-left: 1px solid var(--gray-200);
  padding: 80px 28px 40px; transition: right 0.4s cubic-bezier(0.4,0,0.2,1);
  z-index: 999; display: flex; flex-direction: column;
}
.mobile-menu.open { right: 0; }
.mobile-menu a { display: block; padding: 14px 0; color: var(--gray-700); font-size: 1.05rem; font-weight: 500; border-bottom: 1px solid var(--gray-100); transition: var(--ease); }
.mobile-menu a:hover { color: var(--blue-600); padding-left: 6px; }
.mobile-menu .btn-primary { margin-top: 20px; width: 100%; text-align: center; }
.mob-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.4); opacity: 0; visibility: hidden; transition: var(--ease); z-index: 998; }
.mob-overlay.show { opacity: 1; visibility: visible; }

/* ===== HERO ===== */
.hero {
  padding: 100px 0 56px;
  background: linear-gradient(170deg, var(--blue-50) 0%, var(--white) 50%, var(--blue-50) 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content:''; position: absolute; top: -40%; right: -30%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.07) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-grid { display: flex; flex-direction: column; align-items: center; gap: 32px; position: relative; z-index: 1; }
.hero-img { width: 100%; max-width: 320px; text-align: center; }
.hero-img img {
  width: 100%; max-width: 280px; margin: 0 auto;
  animation: heroFloat 5s ease-in-out infinite;
  filter: drop-shadow(0 24px 40px rgba(30,64,175,0.18));
}
@keyframes heroFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.hero-img .pulse-ring {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 260px; height: 260px;
  border: 2px solid rgba(59,130,246,0.12); border-radius: 50%;
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { transform: translate(-50%,-50%) scale(1); opacity: .5; } 50% { transform: translate(-50%,-50%) scale(1.12); opacity: .15; } }
.hero-content { text-align: center; }
.hero-content h1 { font-family: var(--font-head); font-size: 1.7rem; font-weight: 700; color: var(--blue-900); line-height: 1.25; margin-bottom: 18px; }
.hero-content h1 em { font-style: normal; color: var(--blue-600); }
.hero-desc p { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 12px; }
.hero-desc strong { color: var(--blue-800); }
.hero-benefits { text-align: left; margin: 24px 0 28px; }
.hero-benefits li { padding: 5px 0; font-size: 1rem; color: var(--gray-700); display: flex; align-items: flex-start; gap: 10px; }
.hero-benefits .em { font-size: 1.15rem; flex-shrink: 0; }
.hero-cta { display: flex; flex-direction: column; gap: 10px; align-items: center; }
.hero-cta .btn-primary { width: 100%; }
.hero-sub { font-size: 0.8rem; color: var(--gray-400); }

/* ===== WHY CHOOSE ===== */
.why-choose { background: var(--white); }
.trust-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.trust-card {
  background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 22px 16px; text-align: center; transition: var(--ease);
}
.trust-card:hover { border-color: var(--blue-400); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.trust-card img { width: 56px; height: 56px; margin: 0 auto 10px; object-fit: contain; }
.trust-card h3 { font-family: var(--font-head); font-size: 0.95rem; color: var(--blue-900); margin-bottom: 6px; }
.trust-card p { font-size: 0.85rem; color: var(--gray-500); line-height: 1.55; }

/* ===== WHO FOR ===== */
.who-for { background: var(--blue-50); }
.who-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.who-card {
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 26px 22px; transition: var(--ease); position: relative; border-left: 4px solid var(--blue-500);
}
.who-card:hover { box-shadow: var(--shadow-md); }
.who-card .ic { font-size: 1.8rem; margin-bottom: 10px; }
.who-card h3 { font-family: var(--font-head); font-size: 1.05rem; color: var(--blue-800); margin-bottom: 8px; }
.who-card p { font-size: 0.95rem; color: var(--gray-600); line-height: 1.7; }

/* ===== WHAT IS ===== */
.what-is { background: var(--white); }
.what-grid { display: flex; flex-direction: column; gap: 28px; align-items: center; }
.what-img { width: 100%; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--gray-200); }
.what-text p { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 14px; }
.what-text strong { color: var(--blue-800); }
.what-text a { color: var(--blue-600); text-decoration: underline; }
.what-text a:hover { color: var(--blue-800); }

/* ===== HOW IT WORKS ===== */
.how-works { background: var(--blue-50); }
.how-intro { font-size: 1rem; color: var(--gray-600); line-height: 1.8; max-width: 680px; margin: 0 auto 36px; text-align: center; }
.how-intro a { color: var(--blue-600); text-decoration: underline; }
.steps-wrap { display: flex; flex-direction: column; gap: 20px; position: relative; }
.steps-wrap::before { content:''; position: absolute; left: 23px; top: 0; width: 3px; height: 100%; background: linear-gradient(180deg, var(--blue-500), var(--blue-200), transparent); border-radius: 3px; }
.step {
  display: flex; gap: 18px; align-items: flex-start; position: relative;
  opacity: 0; transform: translateX(-20px);
  transition: all 0.6s cubic-bezier(0.4,0,0.2,1);
}
.step.visible { opacity: 1; transform: translateX(0); }
.step-n {
  flex-shrink: 0; width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: var(--white); font-family: var(--font-head); font-size: 1.1rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; z-index: 1;
  box-shadow: 0 0 16px rgba(37,99,235,0.25);
}
.step-body {
  flex: 1; background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow-sm);
}
.step-body h3 { font-family: var(--font-head); font-size: 1rem; color: var(--blue-900); margin-bottom: 6px; }
.step-body p { font-size: 0.95rem; color: var(--gray-500); line-height: 1.65; }

/* ===== REVIEWS ===== */
.reviews { background: var(--white); }
.rev-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.rev-card {
  background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 26px 22px; position: relative; transition: var(--ease);
}
.rev-card::before { content: '"'; position: absolute; top: -8px; right: 18px; font-size: 5rem; font-family: var(--font-head); color: var(--blue-100); line-height: 1; }
.rev-card:hover { box-shadow: var(--shadow-md); border-color: var(--blue-300); }
.rev-top { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.rev-avatar { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; border: 3px solid var(--blue-200); }
.rev-name { font-weight: 700; color: var(--blue-900); font-size: 0.95rem; }
.rev-loc { font-size: 0.8rem; color: var(--gray-400); }
.rev-stars { color: var(--amber); font-size: 0.95rem; margin-bottom: 10px; letter-spacing: 2px; }
.rev-text { font-size: 0.95rem; color: var(--gray-600); line-height: 1.7; font-style: italic; }
.rev-verified { margin-top: 10px; font-size: 0.78rem; color: var(--green); font-weight: 600; }

/* ===== RESEARCH ===== */
.research { background: var(--blue-50); }
.research-body { max-width: 780px; margin: 0 auto; }
.research-body > p { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 18px; }
.research-list li { padding: 7px 0; font-size: 0.95rem; color: var(--gray-600); display: flex; align-items: flex-start; gap: 10px; }
.research-list li::before { content: '✦'; color: var(--blue-600); flex-shrink: 0; font-size: 0.8rem; margin-top: 3px; }

/* ===== PRICING ===== */
.pricing { background: linear-gradient(170deg, var(--white) 0%, var(--blue-50) 100%); }
.cd-wrap { text-align: center; margin-bottom: 32px; }
.cd-label { font-size: 0.85rem; color: var(--red); font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 10px; animation: blink 2s ease-in-out infinite; }
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:.5; } }
.cd-timer { display: flex; justify-content: center; gap: 10px; }
.cd-box { background: var(--blue-900); border-radius: var(--radius); padding: 14px 18px; min-width: 68px; text-align: center; }
.cd-box .num { font-family: var(--font-head); font-size: 1.8rem; font-weight: 700; color: var(--white); line-height: 1; }
.cd-box .lbl { font-size: 0.65rem; color: var(--blue-300); text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }

.price-grid { display: grid; grid-template-columns: 1fr; gap: 18px; align-items: stretch; }
.price-card {
  background: var(--white); border: 2px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 30px 22px; text-align: center; transition: var(--ease); position: relative; overflow: hidden;
}
.price-card.feat { border-color: var(--blue-600); box-shadow: var(--shadow-blue); }
.price-card.feat::before { content:''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--blue-600), var(--blue-400)); }
.price-ribbon {
  position: absolute; top: 14px; right: -32px;
  background: var(--blue-600); color: var(--white);
  font-size: 0.65rem; font-weight: 700; padding: 5px 36px;
  transform: rotate(45deg); text-transform: uppercase; letter-spacing: 1px;
}
.price-card .pkg { font-size: 0.8rem; color: var(--gray-400); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 6px; }
.price-card .bottles { font-family: var(--font-head); font-size: 1.2rem; color: var(--blue-900); margin-bottom: 4px; }
.price-card .supply { font-size: 0.82rem; color: var(--gray-400); margin-bottom: 14px; }
.price-card .bot-img { width: 110px; height: auto; margin: 0 auto 14px; }
.price-card .price-old { font-size: 0.95rem; color: var(--gray-400); text-decoration: line-through; }
.price-card .price-now { font-family: var(--font-head); font-size: 2.2rem; font-weight: 700; color: var(--blue-700); }
.price-card .per { font-size: 0.82rem; color: var(--gray-500); margin-bottom: 4px; }
.price-card .total { font-size: 0.85rem; color: var(--gray-400); margin-bottom: 6px; }
.price-card .save-tag { display: inline-block; background: var(--green-light); color: var(--green); font-size: 0.8rem; font-weight: 700; padding: 3px 12px; border-radius: 20px; margin-bottom: 10px; }
.price-card .bonus-tag { display: flex; align-items: center; justify-content: center; gap: 5px; font-size: 0.82rem; color: var(--blue-600); font-weight: 600; margin-bottom: 4px; }
.price-card .btn-primary { width: 100%; margin-top: 14px; }

/* ===== INGREDIENTS ===== */
.ingredients { background: var(--white); }
.ing-intro { font-size: 1rem; color: var(--gray-500); line-height: 1.8; max-width: 680px; margin: 0 auto 28px; text-align: center; }
.ing-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.ing-card { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; transition: var(--ease); }
.ing-card:hover { border-color: var(--blue-300); }
.ing-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; cursor: pointer; min-height: 48px; }
.ing-head h3 { font-family: var(--font-head); font-size: 0.95rem; color: var(--blue-900); display: flex; align-items: center; gap: 8px; }
.ing-head .ic { font-size: 1.1rem; }
.ing-toggle { color: var(--blue-500); font-size: 1.1rem; transition: var(--ease); flex-shrink: 0; }
.ing-card.open .ing-toggle { transform: rotate(180deg); }
.ing-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.ing-body-inner { padding: 0 18px 18px; font-size: 0.92rem; color: var(--gray-500); line-height: 1.7; }
.ing-body a { color: var(--blue-600); text-decoration: underline; }

/* ===== SCIENCE ===== */
.science { background: var(--blue-50); }
.sci-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.sci-card { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; }
.sci-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; cursor: pointer; min-height: 48px; }
.sci-head h3 { font-size: 0.92rem; color: var(--blue-900); }
.sci-tog { color: var(--blue-500); font-size: 1.1rem; transition: var(--ease); }
.sci-card.open .sci-tog { transform: rotate(180deg); }
.sci-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.sci-body-inner { padding: 0 18px 18px; font-size: 0.9rem; color: var(--gray-500); line-height: 1.7; }
.sci-body-inner a { color: var(--blue-600); text-decoration: underline; }

/* ===== GUARANTEE ===== */
.guarantee { background: linear-gradient(135deg, var(--blue-50), var(--white)); }
.guar-grid { display: flex; flex-direction: column; align-items: center; gap: 28px; }
.guar-img { width: 180px; flex-shrink: 0; }
.guar-content { text-align: center; }
.guar-content h2 { font-family: var(--font-head); font-size: 1.4rem; color: var(--blue-800); margin-bottom: 14px; }
.guar-pts { margin-top: 18px; }
.guar-pt { display: flex; align-items: flex-start; gap: 12px; text-align: left; padding: 10px 0; }
.guar-pt .gic { color: var(--blue-600); font-size: 1.2rem; flex-shrink: 0; margin-top: 2px; }
.guar-pt h4 { color: var(--blue-900); font-size: 0.95rem; margin-bottom: 4px; }
.guar-pt p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.6; }

/* ===== BENEFITS ===== */
.benefits { background: var(--white); }
.ben-intro { font-size: 1rem; color: var(--gray-500); line-height: 1.8; max-width: 680px; margin: 0 auto 28px; text-align: center; }
.ben-list { max-width: 680px; margin: 0 auto; }
.ben-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--gray-100); }
.ben-item:last-child { border-bottom: none; }
.ben-chk { color: var(--blue-600); font-size: 1.1rem; flex-shrink: 0; margin-top: 3px; }
.ben-item p { font-size: 0.95rem; color: var(--gray-600); line-height: 1.7; }
.ben-item strong { color: var(--blue-900); }

/* ===== PROS CONS ===== */
.pros-cons { background: var(--blue-50); }
.pc-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
.pro-box, .con-box { background: var(--white); border-radius: var(--radius-lg); padding: 26px 22px; border: 1px solid var(--gray-200); }
.pro-box h3, .con-box h3 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 14px; }
.pro-box h3 { color: var(--green); }
.con-box h3 { color: var(--red); }
.pro-box li, .con-box li { padding: 7px 0; font-size: 0.95rem; color: var(--gray-600); display: flex; align-items: flex-start; gap: 8px; }
.pro-box li::before { content:'✓'; color: var(--green); font-weight: 700; flex-shrink: 0; }
.con-box li::before { content:'✗'; color: var(--red); font-weight: 700; flex-shrink: 0; }

/* ===== WHERE BUY ===== */
.where-buy { background: var(--white); }
.wb-body { max-width: 780px; margin: 0 auto; }
.wb-body p { font-size: 1rem; color: var(--gray-600); line-height: 1.8; margin-bottom: 14px; }

/* ===== ORDER GUIDE ===== */
.order-guide { background: var(--blue-50); }
.og-grid { display: flex; flex-direction: column; gap: 28px; align-items: center; }
.og-img { width: 100%; max-width: 380px; }
.og-img img { width: 100%; border-radius: var(--radius-lg); border: 1px solid var(--gray-200); box-shadow: var(--shadow-md); }
.og-steps { flex: 1; }
.og-step { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; }
.og-num { flex-shrink: 0; width: 34px; height: 34px; background: var(--blue-600); color: var(--white); font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.og-step h4 { color: var(--blue-900); font-size: 0.95rem; margin-bottom: 4px; }
.og-step p { font-size: 0.88rem; color: var(--gray-500); line-height: 1.6; }
.og-text { margin-top: 18px; }
.og-text p { font-size: 0.92rem; color: var(--gray-500); line-height: 1.7; margin-bottom: 12px; }

/* ===== FAQ ===== */
.faq { background: var(--white); }
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; transition: var(--ease); }
.faq-item.open { border-color: var(--blue-300); }
.faq-q { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; cursor: pointer; min-height: 48px; gap: 10px; }
.faq-q h3 { font-size: 0.95rem; color: var(--blue-900); font-weight: 600; flex: 1; }
.faq-ic { color: var(--blue-500); font-size: 1.2rem; transition: var(--ease); flex-shrink: 0; }
.faq-item.open .faq-ic { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a-inner { padding: 0 18px 18px; font-size: 0.92rem; color: var(--gray-500); line-height: 1.7; }

/* ===== FINAL CTA ===== */
.final-cta {
  background: linear-gradient(170deg, var(--blue-900) 0%, var(--blue-700) 100%);
  padding: 70px 0; text-align: center; position: relative; overflow: hidden;
}
.final-cta::before { content:''; position: absolute; top:-50%; left:-30%; width: 700px; height: 700px; background: radial-gradient(circle, rgba(255,255,255,0.04), transparent 60%); border-radius: 50%; }
.fc-img { width: 180px; margin: 0 auto 22px; animation: heroFloat 5s ease-in-out infinite; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.3)); }
.final-cta h2 { font-family: var(--font-head); font-size: 1.6rem; color: var(--white); margin-bottom: 12px; line-height: 1.3; }
.fc-price { margin-bottom: 22px; }
.fc-price .old { font-size: 1.1rem; color: var(--blue-300); text-decoration: line-through; margin-right: 10px; }
.fc-price .new { font-family: var(--font-head); font-size: 1.8rem; color: var(--white); font-weight: 700; }
.final-cta .btn-primary { font-size: 1.05rem; padding: 16px 44px; }

/* ===== FOOTER ===== */
.footer { background: var(--gray-900); border-top: 1px solid var(--gray-800); padding: 36px 0 22px; }
.ft-grid { display: flex; flex-direction: column; gap: 20px; text-align: center; }
.ft-brand { font-family: var(--font-head); font-size: 1.2rem; color: var(--white); margin-bottom: 4px; }
.ft-brand em { font-style: normal; color: var(--blue-400); }
.ft-links { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }
.ft-links a { font-size: 0.85rem; color: var(--gray-400); transition: var(--ease); }
.ft-links a:hover { color: var(--blue-400); }
.ft-social { display: flex; justify-content: center; gap: 14px; }
.ft-social a { width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--gray-700); border-radius: 50%; color: var(--gray-400); font-size: 1rem; transition: var(--ease); }
.ft-social a:hover { border-color: var(--blue-400); color: var(--blue-400); background: rgba(59,130,246,0.08); }
.ft-disc { font-size: 0.72rem; color: var(--gray-600); line-height: 1.6; max-width: 780px; margin: 22px auto 0; padding-top: 20px; border-top: 1px solid var(--gray-800); }
.ft-copy { text-align: center; font-size: 0.75rem; color: var(--gray-600); margin-top: 14px; }

/* ===== SCROLL TOP ===== */
.scroll-top {
  position: fixed; bottom: 22px; right: 18px; width: 48px; height: 48px;
  background: var(--blue-600); color: var(--white); border: none; border-radius: 50%;
  cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center;
  z-index: 900; opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: var(--ease); box-shadow: var(--shadow-md);
}
.scroll-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { background: var(--blue-700); transform: translateY(-3px); }

/* ===== NOTIFICATION ===== */
.notif-popup {
  position: fixed; bottom: 76px; left: 18px;
  background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 12px 16px; max-width: 270px; z-index: 800; box-shadow: var(--shadow-lg);
  transform: translateX(-120%); transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
.notif-popup.show { transform: translateX(0); }
.notif-t { font-size: 0.82rem; color: var(--gray-700); line-height: 1.4; }
.notif-t strong { color: var(--blue-700); }
.notif-tm { font-size: 0.68rem; color: var(--gray-400); margin-top: 3px; }

/* ===== FADE IN ===== */
.fade-in { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== TABLET 768px+ ===== */
@media (min-width: 768px) {
  .container { padding: 0 32px; }
  .section-pad { padding: 76px 0; }
  .stitle { font-size: 2rem; }
  .nav-links { display: flex; }
  .nav-cta { display: block; }
  .hamburger { display: none; }
  .hero { padding: 120px 0 76px; }
  .hero-grid { flex-direction: row; gap: 44px; }
  .hero-img { width: 42%; max-width: 400px; }
  .hero-img .pulse-ring { width: 340px; height: 340px; }
  .hero-content { text-align: left; flex: 1; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-cta { flex-direction: row; align-items: center; }
  .hero-cta .btn-primary { width: auto; }
  .trust-grid { grid-template-columns: repeat(4,1fr); gap: 18px; }
  .who-grid { grid-template-columns: repeat(2,1fr); }
  .what-grid { flex-direction: row; }
  .what-img { width: 42%; }
  .what-text { flex: 1; }
  .rev-grid { grid-template-columns: repeat(3,1fr); }
  .price-grid { grid-template-columns: repeat(3,1fr); gap: 20px; }
  .ing-grid { grid-template-columns: repeat(2,1fr); }
  .sci-grid { grid-template-columns: repeat(2,1fr); }
  .guar-grid { flex-direction: row; align-items: center; text-align: left; }
  .guar-content { text-align: left; flex: 1; }
  .pc-grid { grid-template-columns: repeat(2,1fr); }
  .og-grid { flex-direction: row; align-items: flex-start; }
  .og-img { width: 38%; }
  .og-steps { flex: 1; }
  .ft-grid { flex-direction: row; justify-content: space-between; align-items: center; text-align: left; }
}

@media (min-width: 1024px) {
  .stitle { font-size: 2.3rem; }
  .hero-content h1 { font-size: 2.6rem; }
  .hero { padding: 140px 0 96px; min-height: 90vh; display: flex; align-items: center; }
  .who-grid { grid-template-columns: repeat(3,1fr); }
  .final-cta h2 { font-size: 2.2rem; }
}

@media (min-width: 1440px) {
  .container { max-width: 1240px; }
  .hero-content h1 { font-size: 2.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}