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

:root {
  --navy-900: #0b1529;
  --navy-800: #101d36;
  --navy-700: #162847;
  --navy-600: #1c3660;
  --indigo-500: #4a5fc7;
  --indigo-400: #6b7ee0;
  --purple-100: #ede8ff;
  --blue-100: #e4ecff;
  --teal-100: #e0f5f5;
  --white: #fff;
  --text-dark: #0c1220;
  --text-muted: #5a6478;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* Header */
.site-header {
  background: var(--white);
  border-bottom: 2px solid var(--blue-100);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 10px rgba(11, 21, 41, 0.08);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy-800);
  letter-spacing: 0.5px;
}

.logo span {
  color: var(--indigo-500);
}

.nav-links a {
  margin-left: 1.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy-800);
}

.btn-nav {
  background: var(--white);
  color: var(--navy-700);
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  border: 2px solid var(--indigo-500);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #0f1b33 0%, #1a2a4f 50%, #162440 100%);
  padding: 4rem 2rem;
  color: var(--white);
}

.hero-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #c4d4ff;
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.35rem 1rem;
  border-radius: 30px;
  letter-spacing: 0.7px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.6rem;
  color: var(--white);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero p {
  color: #b0bdd4;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.9rem 2rem;
  border-radius: 10px;
  font-weight: 700;
}

.btn-primary {
  background: var(--indigo-500);
  color: var(--white);
  transition: background 0.2s ease;
}

.btn-primary:hover {
  background: var(--indigo-400);
}

.btn-secondary {
  background: var(--white);
  border: 2px solid var(--indigo-500);
  color: var(--navy-700);
}

.hero-note {
  font-size: 0.9rem;
  color: #a0b4d8;
  font-weight: 600;
}

.disclaimer {
  font-size: 0.75rem;
  color: #7a8ba5;
  margin-top: 1rem;
}

.hero-image {
  width: 420px;
  margin: 0 auto;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.4));
}

/* Counter */
.counter-bar {
  background: var(--indigo-500);
  color: var(--white);
  text-align: center;
  padding: 1.2rem 1rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.counter-bar span {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffe9a0;
}

/* Sections */
.section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--navy-900);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

/* Benefits */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.benefit-card {
  background: var(--white);
  border: 1px solid #e4e8f4;
  border-radius: 12px;
  padding: 1.6rem;
  box-shadow: 0 4px 14px rgba(11, 21, 41, 0.06);
}

.benefit-icon {
  font-size: 2rem;
  margin-bottom: 0.7rem;
}

.benefit-card h4 {
  color: var(--navy-700);
  margin-bottom: 0.5rem;
}

/* Ingredients */
.ingredients-section {
  background: #f4f6fc;
  padding: 4rem 2rem;
}

.ingredients-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.ingredient-card {
  background: var(--white);
  border: 1px solid #dde3f0;
  border-radius: 12px;
  padding: 1.4rem;
}

.ingredient-card h4 {
  color: var(--navy-700);
  margin-bottom: 0.5rem;
}

.ingredient-card.featured-ingredient {
  border: 2px solid var(--indigo-500);
  background: linear-gradient(135deg, #f8f6ff, #eef2ff);
  grid-column: 1 / -1;
}

.ingredient-card.featured-ingredient h4 {
  font-size: 1.2rem;
  color: var(--indigo-500);
}

/* How to Use */
.how-to-use {
  background: var(--white);
}

.how-to-use-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: center;
}

.how-to-list {
  list-style: none;
  margin: 1.5rem 0;
}

.how-to-list li {
  margin-bottom: 0.8rem;
  padding-left: 1.5rem;
  position: relative;
}

.how-to-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--indigo-500);
  font-weight: 700;
}

.how-to-image {
  width: 360px;
  margin: 0 auto;
}

/* Testimonials */
.testimonials-section {
  background: var(--navy-900);
  color: var(--white);
  padding: 4rem 2rem;
}

.testimonials-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.testimonials-inner .section-title,
.testimonials-inner .section-subtitle {
  color: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-card span {
  display: block;
  margin-top: 1rem;
  font-weight: 600;
  color: #a0b8e8;
}

/* Pricing */
.pricing-section {
  background: var(--white);
  padding: 4rem 2rem;
}

.pricing-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  align-items: stretch;
}

.pricing-card {
  border: 1px solid #e4e8f4;
  border-radius: 14px;
  padding: 1.8rem;
  text-align: center;
  box-shadow: 0 6px 18px rgba(11, 21, 41, 0.08);
  background: var(--white);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.pricing-card img {
  width: 190px;
  height: 160px;
  object-fit: contain;
  margin: 0 auto 0.8rem;
}

.pricing-card h3 {
  margin-bottom: 0.6rem;
  color: var(--navy-800);
}

.price {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--indigo-500);
}

.price-note {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.pricing-card .guarantee {
  margin-top: auto;
  font-size: 0.85rem;
  color: var(--navy-700);
}

.pricing-card.featured {
  border: 2px solid var(--indigo-500);
  transform: translateY(-8px);
}

.pricing-card .btn-primary {
  width: 100%;
  max-width: 220px;
  margin: 0.2rem auto 0;
}

.pricing-card .tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--indigo-500);
  color: var(--white);
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* Guarantee */
.guarantee-section {
  background: linear-gradient(135deg, var(--navy-700), var(--navy-900));
  color: var(--white);
  padding: 3rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  text-align: center;
}

.guarantee-badge {
  font-size: 2.6rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  padding: 1rem;
}

.guarantee-text h2 {
  font-size: 1.9rem;
  margin-bottom: 0.6rem;
}

/* FAQ */
.faq-section {
  background: #f4f6fc;
  padding: 4rem 2rem;
}

.faq-inner {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid #e4e8f4;
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  padding: 1rem 1.2rem;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-800);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-a {
  display: none;
  padding: 0 1.2rem 1.2rem;
  color: var(--text-muted);
}

.faq-item.open .faq-a {
  display: block;
}

.faq-icon {
  font-size: 1.4rem;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

/* Label */
.label-section {
  background: var(--white);
  padding: 3rem 2rem 4rem;
  display: flex;
  justify-content: center;
}

.label-section img {
  width: min(1100px, 95%);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(11, 21, 41, 0.12);
}

/* Footer */
footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  background-color: #000000;
  color: white;
  padding: 1.5rem 2rem;
  gap: 1rem;
}

footer .logo-info {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0.25rem;
}

.logo-info img {
  max-width: 180px;
  width: 100%;
}

.logo-info p {
  font-size: 0.8em;
  color: #ccc;
  margin: 0;
}

footer a {
  font-size: 0.85em;
  color: white;
  text-decoration: none;
  white-space: nowrap;
}

footer a:hover {
  text-decoration: underline;
}

/* Tablet */
@media (max-width: 768px) {
  footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
  }

  footer .logo-info {
    align-items: center;
    margin-bottom: 0.5rem;
  }
}

/* Mobile */
@media (max-width: 550px) {
  footer {
    padding: 1.5rem 1rem;
    gap: 1rem;
  }

  footer .logo-info {
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.5rem;
  }

  footer a {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links a {
    margin: 0 0.6rem;
  }

  .hero {
    padding: 3rem 1.5rem;
  }

  .section {
    padding: 3rem 1.5rem;
  }

  .guarantee-section {
    flex-direction: column;
  }
}