/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:      #1E6FBF;
  --blue-light:#5BAEE8;
  --blue-dark: #0D2E50;
  --bg:        #F0F6FF;
  --slate:     #4A6080;
  --green:     #02BB14;
  --white:     #ffffff;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--blue-dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Sora', sans-serif;
  letter-spacing: -0.02em;
}

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

a { text-decoration: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white);
  padding: 18px 40px;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #155a9e, var(--blue));
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(30,111,191,0.35);
}

.btn-primary.pulse {
  animation: pulse-btn 2s infinite;
}

@keyframes pulse-btn {
  0%   { box-shadow: 0 0 0 0 rgba(30,111,191,0.5); }
  70%  { box-shadow: 0 0 0 18px rgba(30,111,191,0); }
  100% { box-shadow: 0 0 0 0 rgba(30,111,191,0); }
}

/* ── Nav ── */
#navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.3s, padding 0.3s, box-shadow 0.3s;
}

#navbar.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 1px 0 rgba(30,111,191,0.1);
}

#navbar.scrolled .nav-logo { color: var(--blue-dark); }
#navbar.scrolled .nav-logo span { color: var(--blue); }
#navbar.scrolled .nav-links a { color: var(--slate); }
#navbar.scrolled .nav-links a:hover { color: var(--blue); }
#navbar.scrolled .nav-cta {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white) !important;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Sora', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  cursor: pointer;
  letter-spacing: -0.03em;
}

.nav-logo span { color: var(--blue-light); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--white); }

.nav-cta {
  background: var(--white);
  color: var(--blue) !important;
  padding: 10px 28px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.875rem;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--white);
  padding: 4px;
}

/* ── Mobile Menu ── */
#mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--blue-dark);
  z-index: 110;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

#mobile-menu.open { display: flex; }

#mobile-menu a {
  font-family: 'Sora', sans-serif;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white);
}

#mobile-menu a.highlight { color: var(--blue-light); }

.menu-close {
  position: absolute;
  top: 28px; right: 28px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--white);
}

/* ── Hero ── */
#hero {
  background: linear-gradient(150deg, var(--blue-dark) 0%, var(--blue) 55%, var(--blue-light) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero-glow-1 {
  width: 500px; height: 500px;
  background: rgba(255,255,255,0.06);
  top: -100px; right: -100px;
}

.hero-glow-2 {
  width: 300px; height: 300px;
  background: rgba(91,174,232,0.15);
  bottom: 0; left: -50px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.hero-text { color: var(--white); }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 20px;
}

.hero-title span { color: var(--blue-light); }

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 28px;
}

.hero-checks {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.hero-checks li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
}

.hero-checks li svg {
  flex-shrink: 0;
  color: var(--blue-light);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.5);
}

.hero-guarantee svg { color: var(--green); }

/* Hero image — single product centered */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  position: relative;
}

.hero-visual img {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
}

.hero-wave {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 80px;
  background: var(--white);
  clip-path: ellipse(60% 100% at 50% 100%);
}

/* ── Section base ── */
.section { padding: 96px 0; }
.section-alt { background: var(--bg); }

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--blue);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--blue-dark);
}

.section-title span { color: var(--blue); }

.section-sub {
  font-size: 1.05rem;
  color: var(--slate);
  line-height: 1.7;
  max-width: 560px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .section-sub { margin: 16px auto 0; }

/* ── Benefits ── */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.benefit-card {
  background: var(--bg);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
}

.benefit-icon {
  width: 48px; height: 48px;
  background: rgba(30,111,191,0.1);
  color: var(--blue);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.benefit-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--slate);
  line-height: 1.7;
}

/* ── Products ── */
.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.product-card { display: flex; flex-direction: column; gap: 20px; }

.product-card img {
  width: 100%;
  border-radius: var(--radius-xl);
  object-fit: cover;
  aspect-ratio: 3/4;
}

.product-info {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid rgba(30,111,191,0.08);
}

.product-info .section-label { margin-bottom: 6px; }

.product-info h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.product-info p {
  font-size: 0.875rem;
  color: var(--slate);
  line-height: 1.6;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 64px;
  flex-wrap: wrap;
}

.stat { text-align: center; }

.stat-number {
  font-family: 'Sora', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--blue-dark);
  letter-spacing: -0.04em;
  line-height: 1;
}

.stat-number span { color: var(--blue); }

.stat-label {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--slate);
  margin-top: 6px;
}

/* ── Formula ── */
.formula-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.formula-ingredients {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.ingredient {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.ingredient h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.ingredient p {
  font-size: 0.8rem;
  color: var(--slate);
}

.formula-images { display: flex; flex-direction: column; gap: 20px; }

.formula-images img {
  width: 100%;
  border-radius: var(--radius-xl);
  object-fit: cover;
}

.formula-images-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.formula-images-row img {
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 12px;
  border: 1px solid rgba(30,111,191,0.08);
  object-fit: contain;
  aspect-ratio: 1;
}

/* ── Offers ── */
.tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.tab-btn {
  font-family: 'Sora', sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 10px 28px;
  border-radius: 999px;
  border: 2px solid #d1dce8;
  background: transparent;
  color: var(--slate);
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white);
  border-color: var(--blue);
}

.kit-panel { display: none; }
.kit-panel.active { display: grid; }

.kits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.kits-grid-2 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 720px;
}

/* Center orphan card in 3-col grid */
.kits-grid > *:last-child:nth-child(3n+1) { grid-column: 2; }

.kit-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(30,111,191,0.08);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s;
}

.kit-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 56px rgba(30,111,191,0.14);
}

.kit-card.featured {
  border: 2.5px solid var(--blue);
  box-shadow: 0 20px 60px rgba(30,111,191,0.18);
}

.kit-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background: var(--bg);
  padding: 20px;
}

.kit-body {
  padding: 24px 24px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0;
}

.kit-label {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--slate);
  margin-bottom: 6px;
}

.kit-label.featured-label { color: var(--blue); }

.kit-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
  line-height: 1.2;
}

.kit-title span { color: var(--blue); }

.kit-desc {
  font-size: 0.82rem;
  color: var(--slate);
  line-height: 1.5;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(30,111,191,0.07);
  margin-bottom: 20px;
}

.kit-gift {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--blue);
  background: rgba(30,111,191,0.07);
  border-radius: 999px;
  padding: 5px 12px;
  margin-bottom: 20px;
  width: fit-content;
}

.kit-price-area {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kit-price-label {
  font-size: 0.7rem;
  color: #aaa;
  font-weight: 600;
}

.kit-price {
  font-family: 'Sora', sans-serif;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 20px;
}

.kit-price.large { font-size: 2.8rem; }

.kit-btn {
  display: block;
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white);
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 17px;
  border-radius: var(--radius-lg);
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  letter-spacing: 0.05em;
}

.kit-btn:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(30,111,191,0.3);
}

.kit-btn:active { transform: translateY(0); }
.kit-btn.pulse { animation: pulse-btn 2s infinite; }

.shipping-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid rgba(30,111,191,0.1);
  border-radius: var(--radius-lg);
  padding: 16px 32px;
  width: fit-content;
  margin: 48px auto 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--blue-dark);
}

.shipping-badge svg { color: var(--blue); }

/* ── Sticky mobile CTA ── */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 90;
  padding: 12px 20px 20px;
  background: linear-gradient(to top, rgba(255,255,255,1) 70%, rgba(255,255,255,0));
}

.sticky-cta a {
  display: block;
  width: 100%;
  text-align: center;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: var(--white);
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  padding: 18px;
  border-radius: var(--radius-xl);
  letter-spacing: 0.05em;
  box-shadow: 0 8px 32px rgba(30,111,191,0.4);
  animation: pulse-btn 2s infinite;
}

.shipping-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--white);
  border: 1px solid rgba(30,111,191,0.1);
  border-radius: var(--radius-lg);
  padding: 16px 32px;
  width: fit-content;
  margin: 48px auto 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--blue-dark);
}

.shipping-badge svg { color: var(--blue); }

/* ── Footer ── */
footer {
  background: var(--blue-dark);
  color: var(--white);
  padding: 64px 0 32px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 32px;
}

.footer-logo {
  font-family: 'Sora', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.footer-logo span { color: var(--blue-light); }

.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-links a {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.35);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--white); }

.footer-icons {
  display: flex;
  gap: 16px;
  opacity: 0.2;
}

.footer-copy {
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.2);
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-inner { gap: 40px; }
  .formula-grid { gap: 48px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  /* Nav */
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  #navbar.scrolled .nav-hamburger { color: var(--blue-dark); }

  /* Hero */
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 60px 0 100px;
    gap: 40px;
  }

  .hero-badge { margin: 0 auto 24px; }
  .hero-sub { margin: 0 auto 24px; }
  .hero-checks { align-items: center; }
  .hero-actions { justify-content: center; }

  .hero-visual img {
    max-width: 260px;
    margin: 0 auto;
  }

  /* Benefits */
  .benefits-grid { grid-template-columns: 1fr; gap: 12px; }

  /* Products */
  .products-grid { grid-template-columns: 1fr; max-width: 400px; }

  /* Formula */
  .formula-grid { grid-template-columns: 1fr; gap: 40px; }
  .formula-ingredients { grid-template-columns: 1fr 1fr; }

  /* Kits — single column, full width, no orphan fix */
  .kits-grid,
  .kits-grid-2 {
    grid-template-columns: 1fr;
    max-width: 100%;
    gap: 16px;
  }
  .kits-grid > *:last-child:nth-child(3n+1) { grid-column: 1; }

  /* Kit card mobile — vertical normal, sem layout horizontal */
  .kit-card {
    flex-direction: column;
    border-radius: 20px;
  }

  .kit-card img {
    width: 100%;
    min-width: unset;
    aspect-ratio: 4/3;
    height: auto;
    border-radius: 0;
    padding: 16px;
  }

  .kit-body { padding: 16px 20px 20px; }
  .kit-title { font-size: 1.2rem; }
  .kit-price { font-size: 2rem; margin-bottom: 16px; }
  .kit-price.large { font-size: 2.2rem; }
  .kit-btn { padding: 15px; font-size: 0.9rem; }

  /* Stats */
  .stats-row { gap: 32px; }

  /* Sticky CTA */
  .sticky-cta { display: block; }

  /* Footer */
  .footer-top { flex-direction: column; align-items: center; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 20px; }

  /* Extra bottom padding so sticky CTA doesn't cover content */
  body { padding-bottom: 80px; }
}

@media (min-width: 769px) and (max-width: 1023px) {
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .kits-grid { grid-template-columns: 1fr 1fr; }
  .kits-grid > *:last-child:nth-child(3n+1) { grid-column: auto; }
  .formula-grid { grid-template-columns: 1fr; gap: 40px; }
  .formula-images { flex-direction: row; }
  .formula-images > img:first-child { flex: 1; }
  .formula-images-row { flex: 1; display: grid; }
}