:root {
  --color-white: #fff;
  --color-black: #000;
  --color-cream-50: #fcfcf9;
  --color-cream-100: #fffefd;
  --color-gray-200: #f5f5f5;
  --color-gray-300: #a7a9a9;
  --color-gray-400: #777c7c;
  --color-slate-500: #626c71;
  --color-brown-600: #5e5240;
  --color-charcoal-700: #1f2121;
  --color-charcoal-800: #262828;
  --color-slate-900: #13343b;
  --color-teal-300: #32b8c6;
  --color-teal-400: #2da6b2;
  --color-teal-500: #21808d;
  --color-teal-600: #1d7480;
  --color-teal-700: #1a6873;
  --color-teal-800: #2996a1;
  --color-red-400: #ff5459;
  --color-red-500: #c0152f;
  --color-orange-400: #e68161;
  --color-orange-500: #a84b2f;

  --color-brown-600-rgb: 94,82,64;
  --color-teal-500-rgb: 33,128,141;
  --color-teal-300-rgb: 50,184,198;
  --color-slate-900-rgb: 19,52,59;
  --color-slate-500-rgb: 98,108,113;
  --color-red-500-rgb: 192,21,47;
  --color-orange-500-rgb: 168,75,47;

  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.20);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb),0.2);
  --color-btn-primary-text: var(--color-white);
  --color-card-border: rgba(var(--color-brown-600-rgb),0.12);

  --font-family-base: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;

  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.02);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.04), 0 2px 4px -1px rgba(0,0,0,0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.04), 0 4px 6px -2px rgba(0,0,0,0.02);

  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16,1,0.3,1);

  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* General Reset / Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
  margin: 0;
  background: var(--color-background);
}

body {
  color: var(--color-text);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* Header & Nav */
header {
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  padding: 0; position: sticky; top: 0; z-index: 1000;
}

header .navbar {
  padding: var(--space-12) 0;
}

header .navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
}

header .navbar-brand img {
  height: 50px;
  margin-right: var(--space-10);
}

header .nav-link {
  color: var(--color-text-secondary) !important;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  margin: 0 var(--space-16);
  transition: color var(--duration-fast) var(--ease-standard);
  position: relative;
}

header .nav-link:hover {
  color: var(--color-primary) !important;
}

header .nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: var(--space-2);
  background: var(--color-primary);
  transition: width var(--duration-fast) var(--ease-standard);
}
header .nav-link:hover::after {
  width: 100%;
}

/* HERO SECTION */
.hero-section {
  background: linear-gradient(135deg, #5BC8E7 0%, #2E5EAA 100%);
  color: white;
  padding: 60px 20px;
  text-align: left;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-content {
  display: flex; flex-direction: column; justify-content: center;
}
.hero-title {
  font-size: 2.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  line-height: 1.2;
  color: white;
  text-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.hero-subtitle {
  font-size: 1.4rem;
  margin-bottom: 30px;
  opacity: 0.98;
  font-weight: 500;
  max-width: 600px;
  color: white;
}

/* HERO MOCKUP */
.hero-mockup-section {
  display: flex; 
  flex-direction: column;
  align-items: center; 
  justify-content: center;
}
.hero-mockup-gif {
  max-width: 100%;
  width: 100%;
  height: 100%;
  border-radius: 24px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

/* Chrome Extension Bar Styles */
.chrome-extension-bar {
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.1) 100%);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  animation: slideInRight 0.8s ease;
}

.extension-bar-content {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.extension-bar-icon {
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.extension-bar-icon i {
  font-size: 24px;
  color: #2E5EAA;
}

.extension-bar-text h4 {
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 4px 0;
}

.extension-bar-text p {
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  margin: 0;
}

.extension-bar-btn {
  background: white;
  color: #2E5EAA;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  white-space: nowrap;
}

.extension-bar-btn:hover {
  background: #f0f0f0;
  color: #2E5EAA;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
}

.extension-bar-btn i {
  font-size: 1.1rem;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.partner-logos {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: var(--space-20);
  margin-top: 40px;
  flex-wrap: wrap;
}
.partner-logos .partner-text {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  opacity: 0.9;
  white-space: nowrap;
  margin-right: var(--space-10);
}
.partner-logo-container {
  width: 100px; height: 50px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.1); border-radius: var(--radius-base);
  transition: background var(--duration-fast) var(--ease-standard); cursor: pointer;
}
.partner-logo-container:hover { background: rgba(255,255,255,0.2); }
.partner-logo { width: 80px; height: 40px; object-fit: contain; object-position: center; filter: brightness(0) invert(1) opacity(0.85); transition: filter var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);}
.partner-logo-container:hover .partner-logo { filter: brightness(0) invert(1) opacity(1); transform: scale(1.1);}
.partner-logo-large { width: 100px; height: 50px; }
.partner-logo-container-large { width: 110px; height: 55px; }

/* APP HIGHLIGHT */
.app-highlight-section {
  padding: 70px 20px; background: #f8f9fa;
}
.app-highlight-section h2 {
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
  margin-bottom: var(--space-24);
  font-weight: var(--font-weight-bold);
}
.app-highlight-section p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  font-weight: var(--font-weight-medium);
}
.feature-list {
  list-style: none; padding: 0; margin-top: var(--space-24);
}
.feature-list li {
  font-size: var(--font-size-lg); margin-bottom: var(--space-20); display: flex; align-items: center; color: var(--color-text-secondary);
}
.feature-list li:before {
  content: '✓'; color: var(--color-teal-500); font-weight: bold; margin-right: var(--space-16); font-size: var(--font-size-xl); flex-shrink: 0;
}
.app-demo-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--duration-normal) var(--ease-standard), box-shadow var(--duration-normal) var(--ease-standard);
}
.app-demo-img:hover {
  transform: translateY(-10px); box-shadow: 0 25px 50px rgba(0,0,0,0.2);
}

/* FEATURES */
.features-section { padding: 70px 20px; background: white; }
.section-title { font-size: 2.8rem; color: #2E5EAA; margin-bottom: 50px; font-weight: 800; text-align: center; }
.feature-card {
  background: var(--color-surface);
  padding: 50px var(--space-24);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-24);
  transition: transform var(--duration-normal) var(--ease-standard), box-shadow var(--duration-normal) var(--ease-standard), background var(--duration-normal) var(--ease-standard);
  border: 2px solid transparent;
}
.feature-card:hover {
  transform: translateY(-15px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  background: linear-gradient(135deg,rgba(var(--color-teal-300-rgb),0.05) 0%,rgba(var(--color-slate-900-rgb),0.05) 100%);
}
.feature-icon { font-size: var(--font-size-4xl); margin-bottom: var(--space-20);}
.feature-card h3 { font-size: var(--font-size-xl); color: var(--color-primary); margin-bottom: var(--space-16);}
.feature-card p  { font-size: var(--font-size-base); color: var(--color-text-secondary); line-height: var(--line-height-normal); }

/* TESTIMONIALS */
.testimonials-section { padding: 70px 20px; background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);}
.testimonial {
  text-align: center; font-size: var(--font-size-lg); font-style: italic; color: var(--color-text-secondary); max-width: 700px; margin: 0 auto; padding: 50px var(--space-24); background: var(--color-surface); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border-left: 5px solid var(--color-primary);
}
.testimonial p { margin-bottom: var(--space-20); line-height: 1.8;}
.testimonial footer { margin-top: var(--space-20); font-size: var(--font-size-base); font-style: normal; color: var(--color-primary); font-weight: var(--font-weight-semibold); }

/* FOOTER */
footer { background: linear-gradient(135deg, #2E5EAA 0%, #1a3a6b 100%); color: white; padding: 50px 20px 20px; text-align: center; }
footer img { max-width: 150px; height: auto; margin-bottom: var(--space-24); opacity: 0.95;}
footer p { font-size: var(--font-size-base); margin-bottom: var(--space-20); opacity: 0.9;}
.footer-links { margin-bottom: var(--space-24); display: flex; justify-content: center; gap: var(--space-24); flex-wrap: wrap;}
footer a { color: var(--color-teal-300); text-decoration: none; font-weight: var(--font-weight-semibold);}
footer a:hover { color: var(--color-teal-400);}
footer .copyright { font-size: var(--font-size-sm); opacity: 0.7; border-top: 1px solid rgba(255,255,255,0.2); padding-top: var(--space-20); margin-top: var(--space-20);}

/* RESPONSIVE DESIGN */
@media (max-width:1024px){
  .partner-logo-container{width:90px;height:45px;}
  .partner-logo{width:72px;height:36px;}
  .partner-logo-large{width:90px;height:45px;}
  .partner-logo-container-large{width:100px;height:50px;}
  .hero-mockup-gif{max-width:100%;}
}

@media (max-width:768px) {
  .hero-title{font-size:2rem;margin-bottom:12px;}
  .hero-subtitle{font-size:1.1rem;margin-bottom:25px;}
  .section-title{font-size:2rem;}
  .hero-section{padding:50px 20px;min-height:auto;text-align:center;}
  .hero-content{margin-bottom:30px;}
  .partner-logos{gap:15px;justify-content:center;}
  .partner-logo-container{width:85px;height:42px;}
  .partner-logo{width:68px;height:34px;}
  .partner-logo-large{width:82px;height:41px;}
  .partner-logo-container-large{width:92px;height:46px;}
  .partner-logos .partner-text{width:100%;margin-bottom:15px;margin-right:0;order:-1;}
  .hero-mockup-section{margin-top:20px;}
  .hero-mockup-gif{max-width:350px;}
  .app-highlight-section,
  .features-section,
  .testimonials-section{padding:60px 20px;}
  header .nav-link{margin:10px 0;}
  
  /* Chrome Extension Bar - Tablet */
  .chrome-extension-bar {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  .extension-bar-content {
    flex-direction: column;
    text-align: center;
  }
  .extension-bar-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width:480px) {
  .hero-title{font-size:1.8rem;margin-bottom:10px;}
  .hero-subtitle{font-size:0.95rem;margin-bottom:20px;}
  .hero-section{padding:40px 16px;min-height:auto;}
  .section-title{font-size:1.5rem;margin-bottom:35px;}
  .app-highlight-section,
  .features-section,
  .testimonials-section{padding:50px 16px;}
  .app-highlight-section h2{font-size:2rem;margin-bottom:20px;}
  .app-highlight-section p{font-size:1rem;margin-bottom:20px;}
  .feature-list li{font-size:1rem;margin-bottom:16px;}
  .feature-card{padding:24px 20px;}
  .feature-card h3{font-size:1.3rem;margin-bottom:12px;}
  .feature-card p{font-size:0.9rem;}
  .testimonial{font-size:1rem;padding:32px 20px;}
  .testimonial p{margin-bottom:16px;}
  .testimonial footer{margin-top:16px;font-size:0.9rem;}
  .partner-logos{gap:12px;}
  .partner-logo-container{width:75px;height:38px;}
  .partner-logo{width:60px;height:30px;}
  .partner-logo-large{width:72px;height:36px;}
  .partner-logo-container-large{width:82px;height:41px;}
  .partner-logos .partner-text{font-size:0.9rem;}
  .hero-mockup-section{margin-top:20px;}
  .hero-mockup-gif{max-width:280px;}
  .footer-links{gap:20px;}
  footer{padding:40px 16px 15px;}
  footer img{max-width:120px;margin-bottom:20px;}
  footer p{font-size:0.9rem;margin-bottom:16px;}
  .footer-links{margin-bottom:20px;flex-direction:column;gap:12px;}
  header .navbar{padding:10px 0;}
  header .navbar-brand{font-size:1.3rem;}
  header .navbar-brand img{height:40px;margin-right:8px;}
  header .nav-link{font-size:0.9rem;margin:8px 0;}
  
  /* Chrome Extension Bar - Mobile */
  .chrome-extension-bar {
    padding: 16px;
  }
  .extension-bar-text h4 {
    font-size: 1rem;
  }
  .extension-bar-text p {
    font-size: 0.85rem;
  }
  .extension-bar-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}