/* 
 * D O'BRIEN ELECTRICAL LIMITED - Main Stylesheet
 * Professional Electrical Services - Sheffield
 */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@600;700;800&display=swap');

/* CSS Variables - Color System */
:root {
  --primary-black: #1a1a1a;
  --secondary-black: #2d2d2d;
  --accent-gold: #ffd700;
  --dark-gold: #b8860b;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --medium-gray: #666666;
  --dark-gray: #333333;
  --success-green: #28a745;
  --danger-red: #dc3545;
  --shadow: rgba(0, 0, 0, 0.1);
  --gold-shadow: rgba(255, 215, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-black);
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.2rem;
}

p {
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

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

/* Container & Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 5rem 0;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.header:hover {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--primary-black);
  transition: all 0.3s ease;
  letter-spacing: -0.5px;
}

.logo:hover {
  transform: translateY(-2px);
}

.logo i {
  font-size: 2.2rem;
  color: var(--accent-gold);
  filter: drop-shadow(0 2px 4px rgba(255, 215, 0, 0.3));
  animation: rotate-pulse 3s ease-in-out infinite;
}

@keyframes rotate-pulse {
  0%, 100% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(5deg) scale(1.05); }
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  display: block;
}

.nav-links a:hover {
  color: var(--primary-black);
  background-color: rgba(255, 215, 0, 0.1);
  transform: translateY(-2px);
}

.nav-links a.active {
  color: var(--primary-black);
  background-color: var(--accent-gold);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.nav-links a.active:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(255, 215, 0, 0.5);
}

.phone-btn {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--dark-gold) 100%);
  color: var(--primary-black);
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
  transition: all 0.3s ease;
  font-size: 1rem;
  letter-spacing: 0.3px;
}

.phone-btn:hover {
  background: linear-gradient(135deg, var(--dark-gold) 0%, var(--accent-gold) 100%);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
}

.phone-btn i {
  animation: ring 2s ease-in-out infinite;
}

@keyframes ring {
  0%, 100% { transform: rotate(0deg); }
  10%, 30% { transform: rotate(-10deg); }
  20%, 40% { transform: rotate(10deg); }
  50% { transform: rotate(0deg); }
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 0.35rem;
  padding: 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1001;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

.hamburger:hover {
  background-color: rgba(255, 215, 0, 0.1);
}

.hamburger span {
  width: 28px;
  height: 3px;
  background-color: var(--primary-black);
  transition: all 0.3s ease;
  border-radius: 3px;
  pointer-events: none;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(10px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-10px);
}

/* Skip to main content (accessibility) */
.skip-to-main {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent-gold);
  color: var(--primary-black);
  padding: 0.5rem 1rem;
  z-index: 100;
}

.skip-to-main:focus {
  top: 0;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-black) 0%, var(--secondary-black) 100%);
  padding-top: 80px;
}

#heroCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 2rem;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--light-gray);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.feature-badges {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.badge i {
  font-size: 2rem;
  color: var(--accent-gold);
}

.badge span {
  font-size: 0.9rem;
  font-weight: 500;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  text-align: center;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-gold);
  color: var(--primary-black);
}

.btn-primary:hover {
  background-color: var(--dark-gold);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--gold-shadow);
}

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

.btn-secondary:hover {
  background-color: var(--accent-gold);
  color: var(--primary-black);
}

/* Trust Badges Bar */
.trust-badges {
  background-color: var(--white);
  padding: 3rem 0;
  border-bottom: 1px solid var(--light-gray);
}

.trust-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: center;
}

.trust-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.trust-badge i {
  font-size: 3rem;
  color: var(--accent-gold);
}

.trust-badge h4 {
  color: var(--primary-black);
  margin-bottom: 0.5rem;
}

.trust-badge p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* Cards */
.card {
  background-color: var(--white);
  border-radius: 15px;
  box-shadow: 0 10px 30px var(--shadow);
  padding: 2.5rem;
  transition: all 0.3s ease;
  border-top: 4px solid var(--accent-gold);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card i {
  font-size: 3rem;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.card h3 {
  margin-bottom: 1rem;
}

.card ul {
  list-style: none;
  margin: 1.5rem 0;
}

.card ul li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-weight: bold;
}

.card .learn-more {
  color: var(--accent-gold);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.card .learn-more:hover {
  gap: 1rem;
}

/* Service Cards Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* Why Choose Us Section */
.why-choose {
  background-color: var(--light-gray);
}

.why-choose-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.why-list {
  list-style: none;
}

.why-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.why-item i {
  color: var(--accent-gold);
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

.why-item h4 {
  margin-bottom: 0.5rem;
}

.why-item p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.icon-box {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px var(--shadow);
}

.icon-box i {
  font-size: 3rem;
  color: var(--accent-gold);
}

/* Service Areas Section */
.service-areas {
  background-color: var(--primary-black);
  color: var(--white);
}

.service-areas h2 {
  color: var(--white);
  text-align: center;
  margin-bottom: 3rem;
}

.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.area-card {
  background-color: var(--secondary-black);
  padding: 2rem;
  border-radius: 15px;
  border-top: 4px solid var(--accent-gold);
}

.area-card h3 {
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.area-card ul {
  list-style: none;
}

.area-card ul li {
  padding: 0.5rem 0;
  color: var(--light-gray);
  padding-left: 1.5rem;
  position: relative;
}

.area-card ul li::before {
  content: '📍';
  position: absolute;
  left: 0;
}

.coverage-note {
  text-align: center;
  color: var(--light-gray);
  font-size: 1.1rem;
}

.coverage-note strong {
  color: var(--accent-gold);
}

/* Reviews Section */
.reviews {
  background-color: var(--light-gray);
}

.reviews h2 {
  text-align: center;
  margin-bottom: 1rem;
}

.rating-display {
  text-align: center;
  margin-bottom: 3rem;
}

.rating-display .stars {
  font-size: 2rem;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.rating-display .rating-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--dark-gray);
}

.rating-display .review-count {
  color: var(--medium-gray);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.review-card {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 20px var(--shadow);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.review-author h4 {
  margin-bottom: 0.25rem;
}

.review-author .location {
  color: var(--medium-gray);
  font-size: 0.9rem;
}

.review-stars {
  color: var(--accent-gold);
}

.review-date {
  color: var(--medium-gray);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.review-text {
  color: var(--dark-gray);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--success-green);
  color: var(--white);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.review-cta {
  text-align: center;
  margin-top: 2rem;
}

/* Contact CTA Section */
.contact-cta {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--dark-gold) 100%);
  color: var(--primary-black);
  text-align: center;
}

.contact-cta h2 {
  color: var(--primary-black);
  margin-bottom: 1rem;
}

.contact-cta p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  background-color: var(--primary-black);
  color: var(--light-gray);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h4 {
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
}

.footer-section p {
  margin-bottom: 1rem;
}

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

.footer-section ul li {
  padding: 0.5rem 0;
}

.footer-section ul li a {
  color: var(--light-gray);
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: var(--accent-gold);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact-item i {
  color: var(--accent-gold);
  font-size: 1.2rem;
}

.footer-bottom {
  border-top: 1px solid var(--secondary-black);
  padding-top: 2rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}

.footer-links a {
  color: var(--light-gray);
  font-size: 0.9rem;
}

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

/* Animations */
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 var(--gold-shadow);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(255, 215, 0, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 215, 0, 0);
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-gold {
  color: var(--accent-gold);
}

.bg-dark {
  background-color: var(--primary-black);
  color: var(--white);
}

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }