/**
 * PowerCharge Pro - Main Stylesheet
 * Modern, tech-forward design for EV charging contractor
 * Version 1.0
 */

/* ============================================
   CSS VARIABLES - Color Palette & Theme
   ============================================ */
:root {
  /* Primary Colors */
  --electric-blue: #0066FF;
  --deep-charcoal: #1A1A1A;
  --bright-green: #00FF88;
  --pure-white: #FFFFFF;
  --light-gray: #F5F5F5;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00CCFF 100%);
  --gradient-dark: linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 100%);
  --gradient-glow: radial-gradient(circle at center, rgba(0, 102, 255, 0.2) 0%, transparent 70%);
  
  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: 'Space Mono', 'Courier New', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 30px rgba(0, 102, 255, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

body {
  font-family: var(--font-body);
  line-height: 1.7;
  color: var(--deep-charcoal);
  background: var(--pure-white);
  overflow-x: hidden;
}

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Source+Sans+Pro:wght@300;400;600;700&family=Space+Mono:wght@400;700&display=swap');

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--deep-charcoal);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-sm);
}

p {
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--electric-blue);
  text-decoration: none;
  font-family: var(--font-heading);
  transition: var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: var(--deep-charcoal);
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition-fast);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--electric-blue);
  transition: var(--transition-smooth);
}

.nav-menu a:hover {
  color: var(--electric-blue);
}

.nav-menu a:hover::after {
  width: 100%;
}

.cta-button {
  background: var(--gradient-primary);
  color: var(--pure-white);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-sm);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.3rem;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--deep-charcoal);
  transition: var(--transition-fast);
  border-radius: 2px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-primary);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: var(--gradient-glow);
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.2); opacity: 0.5; }
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.hero-text h1 {
  color: var(--pure-white);
  margin-bottom: var(--spacing-md);
  animation: slideInLeft 0.8s ease-out;
}

.hero-text p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.3rem;
  margin-bottom: var(--spacing-md);
  animation: slideInLeft 1s ease-out;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  animation: slideInLeft 1.2s ease-out;
}

.btn-primary {
  background: var(--pure-white);
  color: var(--electric-blue);
  padding: 1rem 2.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-md);
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--pure-white);
  padding: 1rem 2.5rem;
  border: 2px solid var(--pure-white);
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: var(--transition-smooth);
  display: inline-block;
}

.btn-secondary:hover {
  background: var(--pure-white);
  color: var(--electric-blue);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  animation: slideInLeft 1.4s ease-out;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: var(--font-accent);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--bright-green);
  display: block;
}

.stat-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-visual {
  position: relative;
  animation: slideInRight 1s ease-out;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* ============================================
   SECTION COMMON STYLES
   ============================================ */
.section {
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-text {
  font-size: 1.125rem;
  line-height: 1.9;
}

.value-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.value-card {
  background: var(--light-gray);
  padding: var(--spacing-md);
  border-radius: 15px;
  transition: var(--transition-smooth);
  border: 2px solid transparent;
}

.value-card:hover {
  background: var(--pure-white);
  border-color: var(--electric-blue);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

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

.value-title {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  color: var(--electric-blue);
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
  background: var(--light-gray);
}

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

.service-card {
  background: var(--pure-white);
  padding: var(--spacing-md);
  border-radius: 15px;
  text-align: center;
  transition: var(--transition-smooth);
  border: 3px solid transparent;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--electric-blue);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-sm);
  color: var(--electric-blue);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: #555;
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.service-price {
  font-family: var(--font-accent);
  color: var(--bright-green);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.step {
  text-align: center;
  position: relative;
  padding: var(--spacing-md);
}

.step-number {
  font-family: var(--font-accent);
  font-size: 4rem;
  font-weight: 700;
  color: var(--electric-blue);
  opacity: 0.2;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 0;
}

.step-content {
  position: relative;
  z-index: 1;
  padding-top: var(--spacing-md);
}

.step-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  color: var(--electric-blue);
}

.step-title {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio {
  background: var(--deep-charcoal);
  color: var(--pure-white);
}

.portfolio .section-title {
  color: var(--pure-white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.portfolio-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 15px;
  overflow: hidden;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.portfolio-item:hover {
  transform: scale(1.03);
  background: rgba(255, 255, 255, 0.08);
}

.portfolio-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-image {
  transform: scale(1.1);
}

.portfolio-info {
  padding: var(--spacing-md);
}

.portfolio-title {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  color: var(--bright-green);
}

.portfolio-location {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xs);
}

.portfolio-description {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.testimonial {
  background: var(--light-gray);
  padding: var(--spacing-md);
  border-radius: 15px;
  position: relative;
  transition: var(--transition-smooth);
}

.testimonial:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 20px;
  font-size: 8rem;
  color: var(--electric-blue);
  opacity: 0.1;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-rating {
  color: #FFD700;
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
}

.testimonial-text {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
  color: #333;
}

.testimonial-author {
  font-weight: 700;
  color: var(--electric-blue);
  margin-bottom: 0.25rem;
}

.testimonial-location {
  font-size: 0.9rem;
  color: #777;
}

/* ============================================
   CONTACT/QUOTE SECTION
   ============================================ */
.contact {
  background: var(--gradient-primary);
  color: var(--pure-white);
}

.contact .section-title {
  color: var(--pure-white);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.contact-info h3 {
  color: var(--pure-white);
  margin-bottom: var(--spacing-md);
}

.contact-detail {
  margin-bottom: var(--spacing-md);
}

.contact-detail strong {
  display: block;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
  opacity: 0.9;
}

.contact-detail a {
  color: var(--pure-white);
  text-decoration: none;
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.contact-detail a:hover {
  color: var(--bright-green);
}

.quote-form {
  background: var(--pure-white);
  padding: var(--spacing-md);
  border-radius: 15px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  color: var(--deep-charcoal);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  border: 2px solid #E0E0E0;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

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

.btn-submit {
  background: var(--gradient-primary);
  color: var(--pure-white);
  padding: 1rem 3rem;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
  width: 100%;
  box-shadow: var(--shadow-md);
}

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

.form-message {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: 8px;
  display: none;
}

.form-message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  display: block;
}

.form-message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
  display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--deep-charcoal);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.footer-section h3 {
  color: var(--pure-white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pure-white);
  text-decoration: none;
  font-size: 1.2rem;
  transition: var(--transition-smooth);
}

.social-link:hover {
  background: var(--electric-blue);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-sm);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .about-content {
    grid-template-columns: 1fr;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-md);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .services-grid,
  .portfolio-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stats {
    flex-direction: column;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }