/* ==========================================
   Wavetrack Landing Page - Main Styles
   ========================================== */

/* CSS Variables */
:root {
  /* Colors */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #10b981;
  --accent: #f59e0b;
  --danger: #ef4444;
  --dark: #1e293b;
  --gray: #64748b;
  --light-gray: #f1f5f9;
  --white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-hero: linear-gradient(135deg, #1e293b 0%, #334155 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Typography */
  --font-main:
    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-main);
  line-height: var(--line-height);
  color: var(--dark);
  background: var(--white);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

/* ==========================================
   Header & Navigation
   ========================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: var(--transition);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-menu a {
  color: var(--dark);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-menu a:hover {
  color: var(--primary);
  background: var(--light-gray);
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-cta {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius);
  font-weight: 600;
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
  background: var(--gradient-hero);
  color: var(--white);
  padding: calc(var(--spacing-xl) + 60px) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 20% 50%,
    rgba(37, 99, 235, 0.1) 0%,
    transparent 50%
  );
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

.hero-title .highlight {
  background: var(--gradient-success);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.9);
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--secondary);
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--spacing-xs);
}

/* ==========================================
   Social Proof Bar
   ========================================== */

.social-proof-bar {
  background: var(--white);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--light-gray);
}

.proof-ticker {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scrollbar-width: none;
}

.proof-ticker::-webkit-scrollbar {
  display: none;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--light-gray);
  border-radius: var(--radius);
  white-space: nowrap;
  font-size: 0.875rem;
  animation: slideIn 0.5s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================
   Section Styles
   ========================================== */

section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.section-subtitle {
  font-size: 1.125rem;
  text-align: center;
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

/* ==========================================
   ROI Calculator
   ========================================== */

.roi-section {
  background: var(--light-gray);
}

.roi-calculator {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-lg);
  max-width: 900px;
  margin: 0 auto;
}

.calculator-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.input-group label {
  font-weight: 600;
  color: var(--dark);
  font-size: 0.875rem;
}

.input-group input {
  padding: 0.75rem;
  border: 2px solid var(--light-gray);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.calculator-results {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.calculator-results.active {
  opacity: 1;
  transform: translateY(0);
}

.results-card {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
}

.result-item {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-md);
}

.result-label {
  font-size: 0.875rem;
  opacity: 0.9;
  margin-bottom: var(--spacing-xs);
}

.result-value {
  font-size: 2.5rem;
  font-weight: 800;
}

.result-value.highlight {
  font-size: 3rem;
  color: var(--secondary);
}

.result-cta {
  margin-top: var(--spacing-md);
}

.result-cta .btn {
  background: var(--white);
  color: var(--primary);
  font-size: 1.125rem;
}

.result-cta .btn:hover {
  background: var(--light-gray);
}

/* ==========================================
   Features Grid
   ========================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.feature-card p {
  color: var(--gray);
  line-height: 1.7;
}

/* ==========================================
   Heatmap Section
   ========================================== */

.heatmap-section {
  background: var(--white);
}

.heatmap-container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-md);
  background: var(--light-gray);
  border-radius: var(--radius-lg);
}

.heatmap-grid {
  display: grid;
  gap: var(--spacing-sm);
}

.heatmap-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: var(--spacing-sm);
}

.heatmap-label {
  font-weight: 600;
  color: var(--dark);
}

.heatmap-bar-container {
  position: relative;
  height: 40px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
}

.heatmap-bar {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--spacing-sm);
  color: var(--white);
  font-weight: 600;
  transition: width 1s ease;
}

.heatmap-bar.warning {
  background: var(--gradient-success);
}

.heatmap-bar.danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* ==========================================
   Comparison Slider
   ========================================== */

.comparison-section {
  background: var(--light-gray);
}

.comparison-slider-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.comparison-slider {
  width: 100%;
  margin-bottom: var(--spacing-md);
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  border-radius: 5px;
  background: var(--light-gray);
  outline: none;
}

.comparison-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.comparison-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.comparison-content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.comparison-side {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.comparison-side h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.metric {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--light-gray);
}

.metric:last-of-type {
  border-bottom: none;
}

.metric-label {
  color: var(--gray);
  font-size: 0.875rem;
}

.metric-value {
  font-weight: 700;
  color: var(--dark);
}

.metric-value.success {
  color: var(--secondary);
}

.savings-highlight {
  background: var(--gradient-success);
  color: var(--white);
  padding: var(--spacing-sm);
  border-radius: var(--radius);
  text-align: center;
  margin-top: var(--spacing-md);
  font-size: 1.125rem;
}

/* ==========================================
   Quiz Section
   ========================================== */

.quiz-section {
  background: var(--white);
}

.quiz-container {
  max-width: 700px;
  margin: 0 auto;
  background: var(--light-gray);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
}

.quiz-question {
  margin-bottom: var(--spacing-md);
}

.quiz-question h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.quiz-option {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--white);
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.quiz-option:hover {
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.05);
}

.quiz-option.selected {
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
}

.quiz-result {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  text-align: center;
}

.risk-level {
  font-size: 3rem;
  margin: var(--spacing-sm) 0;
}

.risk-level.high {
  color: var(--danger);
}

.risk-level.medium {
  color: var(--accent);
}

.risk-level.low {
  color: var(--secondary);
}

/* ==========================================
   Alerts Feed
   ========================================== */

.alerts-section {
  background: var(--dark);
  color: var(--white);
}

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

.alerts-feed {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 500px;
  overflow-y: auto;
  padding: var(--spacing-sm);
}

.alert-item {
  background: rgba(255, 255, 255, 0.1);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius);
  border-left: 4px solid var(--danger);
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
  animation: slideIn 0.5s ease;
}

.alert-icon {
  font-size: 1.5rem;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.alert-time {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* ==========================================
   Pricing Section
   ========================================== */

.pricing-section {
  background: var(--light-gray);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  border: 2px solid transparent;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--primary);
  transform: scale(1.05);
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  min-height: 4.5rem;
}

.currency {
  font-size: 1.5rem;
  font-weight: 600;
}

.amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.period {
  font-size: 1rem;
  color: var(--gray);
  margin-left: 0.25rem;
}

.plan-features {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.plan-features li {
  padding: var(--spacing-xs) 0;
  color: var(--gray);
}

.pricing-card .btn {
  width: 100%;
}

/* ==========================================
   CTA Section
   ========================================== */

.cta-section {
  background: var(--gradient-primary);
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.cta-section p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================
   Modal
   ========================================== */

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 90%;
  max-height: 90vh;
  position: relative;
  animation: slideUp 0.3s ease;
  overflow: hidden;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  font-size: 2rem;
  color: var(--gray);
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: var(--dark);
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ==========================================
   Chatbot Widget
   ========================================== */

.chatbot {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 350px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1500;
  overflow: hidden;
}

.chatbot-header {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
}

.chatbot-toggle {
  font-size: 1.5rem;
  line-height: 1;
}

.chatbot-body {
  height: 400px;
  overflow-y: auto;
  padding: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.chatbot-body.collapsed {
  display: none;
}

.chat-message {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius);
  max-width: 80%;
  animation: slideIn 0.3s ease;
}

.chat-message.bot {
  background: var(--light-gray);
  align-self: flex-start;
}

.chat-message.user {
  background: var(--primary);
  color: var(--white);
  align-self: flex-end;
}

.chatbot-input {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  border-top: 1px solid var(--light-gray);
}

.chatbot-input input {
  flex: 1;
  padding: var(--spacing-xs);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
}

.chatbot-input button {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 600;
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .comparison-content {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: scale(1);
  }

  .chatbot {
    width: calc(100% - 40px);
  }

  .calculator-inputs {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-base: 14px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  section {
    padding: var(--spacing-md) 0;
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}

/* ==========================================
   Animations & Effects
   ========================================== */

.fade-in {
  animation: fadeIn 0.6s ease;
}

.slide-up {
  animation: slideUp 0.6s ease;
}

.scale-in {
  animation: scaleIn 0.6s ease;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}