@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors - Calm, Trustworthy, Premium */
  --primary: #1d4ed8;       /* Deep Blue */
  --primary-hover: #1e3a8a;
  --secondary: #0f172a;     /* Very Dark Slate */
  --accent: #2563eb;        /* Bright Blue */
  --background: #f8fafc;    /* Very Light Slate */
  --surface: #ffffff;
  --text-main: #1e293b;
  --text-muted: #475569;
  --text-light: #f1f5f9;
  
  --success: #15803d;
  --warning: #f59e0b;
  
  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Layout */
  --container-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--secondary);
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
p { margin-bottom: 1.5rem; font-size: 1.125rem; color: var(--text-muted); }
p:last-child { margin-bottom: 0; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-hover); }

/* Layout & Containers */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 6rem 0;
}

.section-light { background-color: var(--surface); }
.section-dark { background-color: var(--secondary); color: var(--text-light); }
.section-dark h1, .section-dark h2, .section-dark h3 { color: #ffffff; }
.section-dark p { color: #cbd5e1; }

/* Override for cards inside dark sections */
.section-dark .card { color: var(--text-main); }
.section-dark .card h1, .section-dark .card h2, .section-dark .card h3 { color: var(--secondary); }
.section-dark .card p { color: var(--text-muted); }

.text-center { text-align: center; }
.max-w-3xl { max-width: 48rem; margin-inline: auto; }

/* Announcement Bar */
.announcement-bar {
  background-color: var(--primary);
  color: white;
  text-align: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Navigation */
.navbar {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  padding: 1rem 0;
}
.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.05em;
}
.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links a {
  color: var(--text-main);
  font-weight: 500;
  font-size: 1rem;
}
.nav-links a:hover { color: var(--primary); }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--secondary); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1.125rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white !important;
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
  background: linear-gradient(135deg, var(--primary-hover), var(--primary));
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary) !important;
}
.btn-outline:hover { background: var(--primary); color: white !important; }

/* Hero Section */
.hero {
  padding: 8rem 0;
  background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
  overflow: hidden;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-text h1 { margin-bottom: 1.5rem; }
.hero-text .subtitle { font-size: 1.25rem; margin-bottom: 2.5rem; }
.hero-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.5s ease;
}
.hero-image img:hover { transform: scale(1.02); }

/* Trust Badges */
.trust-badges {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
  align-items: center;
}
.trust-badges img { height: 40px; width: auto; opacity: 0.8; }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

/* Cards */
.card {
  background: var(--surface);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
  height: 100%;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}
.card-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.card h3 { font-size: 1.5rem; margin-bottom: 1rem; }

/* Lists */
.check-list {
  list-style: none;
  margin-bottom: 2rem;
}
.check-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1rem;
  font-size: 1.125rem;
  color: var(--text-muted);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid rgba(0,0,0,0.1);
  padding: 1.5rem 0;
}
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}
.faq-answer p { margin-top: 1rem; margin-bottom: 0; }
.faq-item.active .faq-answer { max-height: 500px; }
.faq-icon { transition: transform 0.3s ease; }
.faq-item.active .faq-icon { transform: rotate(45deg); }

/* Offer Section */
.offer-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
}
.offer-card {
  flex: 1;
  min-width: 300px;
  max-width: 350px;
  background: var(--surface);
  border: 2px solid rgba(0,0,0,0.05);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.offer-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
  z-index: 10;
}
.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: 0.5rem 1.5rem;
  border-radius: 20px;
  font-weight: bold;
  font-size: 0.875rem;
}
.offer-image {
  margin: 1.5rem 0;
}
.offer-image img { width: 100%; max-width: 200px; height: auto; }
.offer-price { font-size: 3rem; font-weight: 800; color: var(--secondary); margin-bottom: 0.5rem; }
.offer-price span { font-size: 1.25rem; color: var(--text-muted); font-weight: 500; }

/* Footer */
.footer {
  background-color: var(--secondary);
  color: var(--text-light);
  padding: 4rem 0 2rem;
}
.footer-text { font-size: 0.875rem; color: #94a3b8; }
.footer-disclaimer {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 2rem;
  padding-top: 2rem;
  font-size: 0.75rem;
  color: #64748b;
  text-align: center;
}

/* Guarantee Box & Sticky CTA */
.guarantee-box {
  margin: 4rem auto 0;
  max-width: 800px;
  background: var(--surface);
  border: 2px dashed var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  gap: 2rem;
  align-items: center;
  box-shadow: var(--shadow-md);
}
.guarantee-img { width: 120px; height: auto; flex-shrink: 0; }

/* Responsive Design */
@media (max-width: 992px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-text .trust-badges { justify-content: center; }
  .hero-image { order: -1; }
  .grid-2 { grid-template-columns: 1fr; }
  .offer-card.popular { transform: none; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--surface);
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
  }
  .nav-links.active { display: flex; }
  .mobile-menu-btn { display: block; }
  .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 4rem 0; }
  h1 { font-size: 2.5rem; }
  .guarantee-box { flex-direction: column; text-align: center; padding: 1.5rem; }
  .guarantee-img { width: 90px; }
}