/* --- VARIABLES & DESIGN SYSTEM (Google Style) --- */
:root {
  /* Colors */
  --google-blue: #1A73E8;
  --google-blue-hover: #174ea6;
  --google-blue-light: #e8f0fe;
  --google-blue-dark: #1967d2;
  --google-green: #188038;
  --google-green-light: #e6f4ea;
  --google-red: #d93025;
  --google-red-light: #fce8e6;
  --google-yellow: #f9ab00;
  --google-yellow-light: #fef7e0;
  --google-purple: #9334e6;
  --google-purple-light: #f3e8fd;
  
  --surface-color: #ffffff;
  --background-color: #ffffff;
  --background-alt: #f8f9fa; /* Light gray for alternating sections */

  --text-primary: #202124;
  --text-secondary: #5f6368;
  --text-light: #ffffff;

  /* Borders & Shadows */
  --border-color: #dadce0;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 24px;
  --border-radius-xl: 32px;

  /* Shadow 1 (Subtle, default) */
  --shadow-1: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
  /* Shadow 2 (Hover) */
  --shadow-2: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15);
  /* Shadow 3 (Floating components) */
  --shadow-3: 0 2px 6px 2px rgba(60,64,67,0.15), 0 1px 2px 0 rgba(60,64,67,0.3);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Layout */
  --container-width: 1100px;
  --section-padding: 80px 20px;
}

/* --- RESET & GLOBAL --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  background-color: var(--background-color);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

ul {
  list-style: none;
}

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

/* Typography Scale */
h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 8vw, 4rem); line-height: 1.1; }
h2 { font-size: clamp(1.75rem, 6vw, 2.5rem); margin-bottom: 20px; line-height: 1.25; }
h3 { font-size: 1.25rem; margin-bottom: 12px; }

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
}
.bg-light { background-color: var(--background-alt); }
.text-center { text-align: center; }
.mb-loose { margin-bottom: 48px; }
.mb-tight { margin-bottom: 24px; }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  border-radius: var(--border-radius-xl); /* Pill shape is very Google */
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  font-family: var(--font-family);
  letter-spacing: 0.01em;
}

.btn-small { padding: 10px 24px; font-size: 0.95rem; height: 40px; }
.btn-large { padding: 14px 32px; font-size: 1.1rem; height: 56px; }

.btn-primary {
  background-color: var(--google-blue);
  color: var(--text-light);
}
.btn-primary:hover {
  background-color: var(--google-blue-hover);
  box-shadow: var(--shadow-2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--google-blue);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background-color: var(--google-blue-light);
  border-color: var(--google-blue-light);
}

.btn-shadow { box-shadow: var(--shadow-1); }
.btn-shadow:hover { box-shadow: var(--shadow-2); }

/* --- ICONS / CHIPS / BADGES --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--google-blue-light);
  color: var(--google-blue-dark);
  margin-bottom: 16px;
}
.badge-blue { background-color: var(--google-blue-light); color: var(--google-blue-dark); }
.badge-green { background-color: var(--google-green-light); color: var(--google-green); }

/* --- NAVBAR --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 160px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-content {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}
.logo-icon { color: var(--google-blue); font-size: 28px; }
.logo-img { height: 130px; width: auto; max-width: 500px; object-fit: contain; }

/* --- HERO SECTION --- */
.hero {
  position: relative;
  padding: 260px 20px 80px;
  text-align: center;
  overflow: hidden;
}

.hero-chip {
  display: inline-block;
  color: var(--text-secondary);
  font-weight: 500;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 4px 16px;
  margin-bottom: 24px;
}

.hero-title {
  max-width: 900px;
  margin: 0 auto 24px;
  color: var(--text-primary);
}
.hero-title span {
  background: linear-gradient(90deg, #4285F4 0%, #EA4335 33%, #FBBC05 66%, #34A853 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 48px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- SOCIAL PROOF BANNER --- */
.social-proof-banner {
  padding: 40px 20px;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--surface-color);
  position: relative;
  z-index: 10;
}
.sp-title {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}
.sp-countries {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px 32px;
}
.sp-country {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Abstract Background blob behind hero */
.hero-bg-accent {
  position: absolute;
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,240,254,0.8) 0%, rgba(255,255,255,0) 70%);
  z-index: -1;
  pointer-events: none;
}

/* --- BENEFITS SECTION --- */
.benefits {
  padding: var(--section-padding);
}
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.section-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.section-desc-center {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.benefit-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.benefit-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1.1rem;
  font-weight: 500;
}
.list-icon { 
  font-size: 28px;
  padding: 10px;
  border-radius: 50%;
  background: var(--surface-color);
  box-shadow: var(--shadow-1);
}
.color-blue { color: var(--google-blue); background: var(--google-blue-light); }
.color-green { color: var(--google-green); background: var(--google-green-light); }
.color-red { color: var(--google-red); background: var(--google-red-light); }
.color-yellow { color: var(--google-yellow); background: var(--google-yellow-light); }

.card-highlight {
  background: var(--surface-color);
  padding: 48px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-3);
  position: relative;
  overflow: hidden;
}

.highlight-box {
  background: var(--google-blue-light);
  padding: 24px;
  border-radius: var(--border-radius-md);
  border-left: 4px solid var(--google-blue);
  display: flex;
  gap: 16px;
  align-items: center;
}
.highlight-box span {
  color: var(--google-blue);
  font-size: 32px;
}

/* --- TOOLS GRID --- */
.tools-section {
  padding: var(--section-padding);
}
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}
.tool-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.tool-card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
  border-color: transparent;
}
.tool-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.tool-icon span { color: white; font-size: 28px; }

/* Icon Colors */
.bg-green { background-color: var(--google-green); }
.bg-blue { background-color: var(--google-blue); }
.bg-yellow { background-color: var(--google-yellow); }
.bg-red { background-color: var(--google-red); }
.bg-purple { background-color: var(--google-purple); }
.bg-blue-dark { background-color: var(--google-blue-dark); }

.bg-blue-light { background-color: var(--google-blue-light); }

.tool-name { margin-bottom: 20px; }
.tool-list { margin-bottom: 24px; flex-grow: 1; }
.tool-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--text-secondary);
}
.tool-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--google-blue);
  font-weight: bold;
}
.tool-example {
  background: var(--background-alt);
  padding: 16px;
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.card-featured {
  grid-column: 1 / -1;
  border: 2px solid var(--google-blue);
  box-shadow: var(--shadow-1);
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, #f4f8ff 100%);
}
.featured-tag {
  position: absolute;
  top: -12px;
  left: 32px;
  background: var(--google-blue);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.featured-example { background: white; border: 1px solid var(--google-blue-light); }

/* --- IMPACT SECTION --- */
.impact { padding: var(--section-padding); }
.impact-flex {
  display: flex;
  gap: 64px;
  align-items: flex-start;
}
.impact-text { flex: 1; }
.impact-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--surface-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-1);
}
.stat-icon {
  color: var(--google-blue);
  font-size: 32px;
}
.stat-text { font-size: 1.1rem; }

.audience-card {
  flex: 0.8;
  background: var(--surface-color);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-2);
}
.audience-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.title-icon { font-size: 32px; color: var(--google-purple); }
.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}
.tag {
  background: var(--background-alt);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 500;
  color: var(--text-secondary);
}
.notice-box {
  background: var(--google-blue-light);
  padding: 16px;
  border-radius: var(--border-radius-sm);
  color: var(--google-blue-dark);
}

/* --- INVESTMENT SECTION --- */
.investment { padding: var(--section-padding); }
.investment-container {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 48px;
  align-items: center;
}
.pricing-table-wrapper {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.pricing-table {
  width: 100%;
  min-width: 360px;
  border-collapse: collapse;
}
.pricing-table th {
  background: var(--background-alt);
  padding: 20px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
}
.pricing-table td {
  padding: 20px;
  border-top: 1px solid var(--border-color);
}
.table-highlight {
  background: var(--google-green-light);
}
.pricing-hint {
  padding: 16px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  background: var(--surface-color);
}
.icon-circle {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.pricing-context h3 { margin-bottom: 16px; }
.pricing-context p { color: var(--text-secondary); margin-bottom: 16px; }

/* --- AUTHOR SECTION --- */
.author { padding: var(--section-padding); }
.author-content {
  display: flex;
  align-items: center;
  gap: 48px;
  max-width: 800px;
  background: var(--surface-color);
  padding: 48px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-1);
  margin: 0 auto;
}
.author-avatar {
  flex-shrink: 0;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--background-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 4px solid var(--surface-color);
  box-shadow: var(--shadow-2);
}
.placeholder-avatar {
  font-size: 80px;
  color: var(--text-secondary);
}
.author-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.author-name { margin-bottom: 8px; font-size: 2rem; }
.author-role { color: var(--google-blue); font-weight: 500; margin-bottom: 16px; font-size: 1.1rem; }
.author-bio { color: var(--text-secondary); font-size: 1.1rem; text-align: left; }
.author-bio p { margin-bottom: 16px; }
.author-bio p:last-child { margin-bottom: 0; }

/* --- CTA SECTION --- */
.cta-section { padding: 80px 20px 120px; }
.cta-box {
  background: var(--google-blue-light);
  padding: 64px 40px;
  border-radius: var(--border-radius-xl);
  max-width: 800px;
  margin: 0 auto;
}
.cta-icon {
  font-size: 48px;
  color: var(--google-blue);
  margin-bottom: 24px;
}
.cta-title { font-size: 2.5rem; margin-bottom: 16px; color: var(--google-blue-dark); }
.cta-desc { font-size: 1.25rem; color: #3c4043; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* --- FOOTER --- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 48px 20px;
  text-align: center;
  color: var(--text-secondary);
}
.footer-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.footer-logo-img { height: 160px; margin-bottom: 32px; opacity: 0.9; }

/* --- RESPONSIVE MEDIA QUERIES --- */
@media (max-width: 900px) {
  .benefits-grid, .impact-flex, .investment-container, .author-content {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
  .card-featured { grid-column: 1 / -1; }
  
  .hero { padding-top: 120px; }
  .author-content { text-align: center; }
  .author-avatar { margin: 0 auto; }
}

@media (max-width: 600px) {
  :root {
    --section-padding: 60px 16px;
  }
  .navbar { height: 100px; padding: 0 8px; }
  .logo-img { height: 75px; max-width: 50vw; }
  .nav-content { gap: 8px; }
  .hero { padding-top: 140px; padding-bottom: 60px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .card-highlight { padding: 24px 16px; }
  .tool-card { padding: 24px 16px; }
  .cta-box { padding: 40px 16px; }
  .stat-item { padding: 16px; align-items: flex-start; }
  .stat-icon { font-size: 28px; }
  .audience-card { padding: 24px 16px; }
}

@media (max-width: 400px) {
  .btn-small { padding: 8px 10px; font-size: 0.75rem; white-space: nowrap; }
  .logo-img { height: 60px; max-width: 45vw; }
  .navbar { height: 80px; }
  .hero { padding-top: 120px; }
  .sp-country { font-size: 1rem; }
}