/* ==========================================================================
   Modular CSS Framework for Credination
   ========================================================================== */

/* --- CSS Variables (Tokens) --- */
:root {
  /* Colors */
  --bg-color: #020617; /* Slate 950 */
  --primary-color: #0F172A; /* Slate 900 */
  --secondary-color: #6D28D9; /* Violet 700 */
  --accent-cta: #10B981; /* Emerald 500 */
  --accent-cta-hover: #059669; /* Emerald 600 */
  --text-primary: #F8FAFC; /* Slate 50 */
  --text-secondary: #94A3B8; /* Slate 400 */
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(16px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--secondary-color), var(--accent-cta));
  --gradient-bg: radial-gradient(circle at top right, rgba(109, 40, 217, 0.15), transparent 40%),
                 radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.1), transparent 40%);
                 
  /* Typography */
  --font-family: 'Inter', sans-serif;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  background-image: var(--gradient-bg);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

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); }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-secondary {
  color: var(--text-secondary);
}

.text-center { text-align: center; }
.font-semibold { font-weight: 600; }

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-24) 0;
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }

/* --- Components --- */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-cta);
  color: var(--bg-color);
}

.btn-primary:hover {
  background-color: var(--accent-cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-normal), background var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.05);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(2, 6, 23, 0.8);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-2) 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent-cta);
}

.nav-links {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0.8;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--accent-cta);
}

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg-color);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--space-24);
  position: relative;
}

.hero-content {
  max-width: 600px;
}

.hero-dashboard {
  position: relative;
  width: 100%;
  height: 500px;
}

/* Floating Widgets in Hero */
.widget {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--glass-shadow);
  animation: float 6s ease-in-out infinite;
}

.widget-1 { top: 10%; right: 10%; width: 250px; animation-delay: 0s; }
.widget-2 { top: 40%; left: 0; width: 220px; animation-delay: 2s; }
.widget-3 { bottom: 10%; right: 20%; width: 280px; animation-delay: 4s; }

.widget-score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-cta);
  line-height: 1;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

/* Trust Badges */
.trust-badges {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
  flex-wrap: wrap;
}

.badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.badge svg {
  width: 16px;
  height: 16px;
  color: var(--accent-cta);
}

/* Features */
.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(109, 40, 217, 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--secondary-color);
}

/* Pricing */
.pricing-card {
  text-align: center;
  position: relative;
}

.pricing-card.premium {
  border-color: var(--secondary-color);
  box-shadow: 0 0 30px rgba(109, 40, 217, 0.2);
  transform: scale(1.05);
}

.pricing-card.premium:hover {
  transform: scale(1.08);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.price {
  font-size: 2.5rem;
  font-weight: 800;
  margin: var(--space-4) 0;
}

.price span {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-features {
  margin: var(--space-6) 0;
  text-align: left;
}

.pricing-features li {
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-features li svg {
  color: var(--accent-cta);
  width: 16px;
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--glass-border);
  padding: var(--space-4) 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
}

.faq-icon {
  transition: transform var(--transition-fast);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  color: var(--text-secondary);
  margin-top: 0;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  margin-top: var(--space-4);
}

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

/* Timeline */
.timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding: var(--space-8) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--glass-border);
  z-index: 0;
}

.timeline-step {
  position: relative;
  z-index: 1;
  text-align: center;
  background: var(--bg-color);
  padding: 0 var(--space-2);
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border: 2px solid var(--accent-cta);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto var(--space-2);
}

/* Footer */
.footer {
  border-top: 1px solid var(--glass-border);
  padding: var(--space-12) 0 var(--space-4);
  margin-top: var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-heading {
  font-size: 1.1rem;
  margin-bottom: var(--space-4);
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-secondary);
}

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

.footer-bottom {
  text-align: center;
  color: var(--text-secondary);
  padding-top: var(--space-4);
  border-top: 1px solid var(--glass-border);
  font-size: 0.9rem;
}

/* WhatsApp Floating Button */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50px;
  text-align: center;
  font-size: 30px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse-wa 2s infinite;
  transition: transform var(--transition-fast);
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

@keyframes pulse-wa {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cta);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* --- Media Queries --- */
@media (max-width: 992px) {
  .hero { flex-direction: column; text-align: center; padding-top: var(--space-32); }
  .hero-content { margin-bottom: var(--space-8); }
  .trust-badges { justify-content: center; }
  .pricing-card.premium { transform: scale(1); }
  .pricing-card.premium:hover { transform: translateY(-5px); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  h1 { font-size: 2.5rem; }
  .timeline { flex-direction: column; align-items: flex-start; padding-left: 20px; }
  .timeline::before { top: 0; left: 20px; width: 2px; height: 100%; }
  .timeline-step { display: flex; align-items: center; gap: 1rem; text-align: left; background: transparent; margin-bottom: var(--space-4); }
  .step-number { margin: 0; z-index: 2; position: relative; left: -20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero-dashboard { height: 400px; }
  .widget-1 { top: 0; right: 0; width: 200px; }
  .widget-2 { top: 30%; left: -10%; width: 180px; }
  .widget-3 { bottom: 0; right: 10%; width: 220px; }
}