/* Variables */
:root {
    --primary-blue: #007bff; /* Cooling - Strong Blue */
    --secondary-orange: #ff6f00; /* Heating - Vibrant Orange */
    --dark-blue: #0056b3; /* Darker primary for hover */
    --dark-orange: #e65100; /* Darker secondary for hover */
    --text-dark: #333;
    --text-light: #555;
    --background-light: #f9f9f9;
    --background-grey: #f0f2f5;
    --white: #ffffff;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

/* Base Styles */
body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    line-height: 1.7;
    color: var(--text-light);
    background-color: var(--background-light);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-dark);
    line-height: 1.2;
    margin-top: 0;
}

h1 { font-size: 3em; }
h2 { font-size: 2.5em; text-align: center; margin-bottom: 40px; }
h3 { font-size: 1.8em; }

p {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: var(--primary-blue);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--dark-blue);
}

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

section {
    padding: 80px 0;
    overflow: hidden; /* Clear floats/margins */
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 50px; /* Fully rounded */
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
    border: none;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-size: 1em;
}

.primary-btn {
    background-color: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
}

.primary-btn:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 123, 255, 0.4);
}

.secondary-btn {
    background-color: var(--secondary-orange);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(255, 111, 0, 0.3);
}

.secondary-btn:hover {
    background-color: var(--dark-orange);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 111, 0, 0.4);
}

.secondary-btn i {
    margin-right: 8px;
}

/* Sticky Request Service Button */
.sticky-button {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1000;
    background-color: var(--secondary-orange);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 111, 0, 0.4);
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1em;
}

.sticky-button:hover {
    background-color: var(--dark-orange);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 111, 0, 0.5);
}


/* Header */
header {
    background-color: var(--white);
    padding: 15px 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 2em;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
}

.logo .flame-icon {
    color: var(--secondary-orange);
    margin-right: 5px;
    font-size: 0.8em;
}

.logo .snowflake-icon {
    color: var(--primary-blue);
    margin-right: 8px;
    font-size: 0.8em;
}

nav .nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav .nav-links li {
    margin-left: 30px;
}

nav .nav-links a {
    color: var(--text-dark);
    font-weight: 600;
    position: relative;
    padding: 5px 0;
}

nav .nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    bottom: 0;
    left: 0;
    transition: width 0.3s ease;
}

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

.burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
}

.burger div {
    width: 30px;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 70vh; /* Adjust height as needed */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('https://images.unsplash.com/photo-1599388836098-9e658e469e80?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3w0NTMzNXwwfDF8c2VhcmNofDEzfHxIVkFDJTIwdGVjaG5pY2lhbnxlbnwwfHx8fDE3MDExMzk5MTd8MA&ixlib=rb-4.0.3&q=80&w=1080') no-repeat center center/cover;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 123, 255, 0.7), rgba(255, 111, 0, 0.7)); /* Blue to Orange overlay */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.8em;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.3em;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons .btn {
    margin: 0 15px;
    min-width: 180px;
}

/* Services Section */
.services-section {
    background-color: var(--background-light);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3.5em;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.95em;
    color: var(--text-light);
    flex-grow: 1; /* Allows text to take available space */
}

.service-card .read-more {
    margin-top: 15px;
    font-weight: 600;
    color: var(--primary-blue);
    display: inline-block;
}

.service-card .read-more:hover {
    color: var(--dark-blue);
}

/* Why Choose Us Section */
.why-choose-us-section {
    background-color: var(--background-grey);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.benefit-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-5px);
}

.benefit-icon {
    font-size: 3em;
    color: var(--secondary-orange);
    margin-bottom: 20px;
}

.benefit-item h3 {
    margin-bottom: 10px;
}

.benefit-item p {
    font-size: 0.95em;
}

/* Testimonials Section */
.testimonials-section {
    background-color: var(--background-light);
    text-align: center;
}

.testimonial-carousel {
    position: relative;
    max-width: 800px;
    margin: 40px auto;
    overflow: hidden;
    padding: 20px;
}

.testimonial-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 0 auto;
    text-align: center;
    display: none; /* Hidden by default */
    animation: fadeIn 0.8s ease-in-out;
}

.testimonial-card.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.testimonial-card .stars {
    color: #FFD700; /* Gold color for stars */
    margin-bottom: 15px;
}

.testimonial-card .stars i {
    font-size: 1.2em;
    margin: 0 2px;
}

.testimonial-card p {
    font-style: italic;
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.testimonial-card .customer-name {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1em;
}

.carousel-nav {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.carousel-nav .dot {
    height: 12px;
    width: 12px;
    background-color: #ccc;
    border-radius: 50%;
    display: inline-block;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.carousel-nav .dot.active {
    background-color: var(--primary-blue);
}

.google-reviews {
    margin-top: 50px;
}

.google-reviews p {
    font-size: 1.1em;
    margin-bottom: 20px;
}

/* About Us Section */
.about-section {
    background-color: var(--background-grey);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.about-content .about-image {
    flex: 1;
    min-width: 300px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    height: 400px; /* Fixed height for image container */
}

.about-content .about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensure image covers the area */
    transition: transform 0.5s ease;
}

.about-content .about-image img:hover {
    transform: scale(1.05);
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about