/* ========================================
   Sheffield Village HVAC Pros - Main Stylesheet
   Professional Air Duct Cleaning Website
   ======================================== */

/* ========================================
   CSS Variables - Professional HVAC Color Palette
   ======================================== */
:root {
    /* Primary Colors */
    --primary-blue: #0F4C81;
    --primary-orange: #FF6B35;
    --dark-blue: #0A3357;
    --light-blue: #1E6BA8;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E9ECEF;
    --gray: #6C757D;
    --dark-gray: #343A40;
    --black: #1A1A1A;
    
    /* Semantic Colors */
    --success: #28A745;
    --warning: #FFC107;
    --danger: #DC3545;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.7;
}

strong {
    font-weight: 600;
    color: var(--dark-blue);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 30px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 6px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-orange), #FF8555);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #FF5520, var(--primary-orange));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-light {
    background: var(--white);
    color: var(--primary-blue);
}

.btn-light:hover {
    background: var(--off-white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* ========================================
   Section Styles
   ======================================== */
.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(255, 107, 53, 0.1));
    color: var(--primary-blue);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 30px;
    margin-bottom: 1rem;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.section-title {
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.8;
}

.highlight {
    color: var(--primary-orange);
    position: relative;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--dark-blue);
    line-height: 1.2;
}

.logo i {
    font-size: 2rem;
    color: var(--primary-orange);
}

.logo strong {
    color: var(--primary-blue);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-orange);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary-blue);
}

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

.btn-call {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-blue), var(--light-blue));
    color: var(--white);
    font-weight: 600;
    border-radius: 6px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 3px;
    transition: var(--transition-normal);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    background-image: 
        linear-gradient(135deg, rgba(15, 76, 129, 0.95) 0%, rgba(10, 51, 87, 0.95) 100%),
        url('https://images.unsplash.com/photo-1621905251918-48416bd8575a?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 53, 0.15), transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    color: var(--white);
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-features {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
}

.feature-item i {
    color: var(--primary-orange);
    font-size: 1.2rem;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: var(--section-padding);
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-title {
    margin-bottom: 1.5rem;
}

.about-text {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-list {
    margin: 1.5rem 0;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 1rem;
    font-size: 1rem;
    line-height: 1.7;
}

.about-list i {
    color: var(--success);
    font-size: 1.2rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.about-cta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.about-contact {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray);
}

.about-contact i {
    color: var(--primary-orange);
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.image-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--primary-orange), #FF8555);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    color: var(--white);
}

.badge-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 5px;
}

.badge-text {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.stat-item i {
    font-size: 2rem;
    color: var(--primary-orange);
}

.stat-item h4 {
    font-size: 1.75rem;
    margin-bottom: 0;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 0;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: var(--section-padding);
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 35px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: var(--transition-normal);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(255, 107, 53, 0.1));
    color: var(--primary-blue);
    font-size: 2rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.service-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-orange);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.service-link:hover {
    gap: 12px;
}

.service-link i {
    font-size: 0.9rem;
}

/* ========================================
   Why Choose Us Section
   ======================================== */
.why-choose-us {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
}

.why-choose-us .section-badge {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.why-choose-us .section-title,
.why-choose-us .section-subtitle {
    color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 35px;
    border-radius: 12px;
    transition: var(--transition-normal);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-orange);
    color: var(--white);
    font-size: 2rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

/* ========================================
   Testimonials Section
   ======================================== */
.testimonials {
    padding: var(--section-padding);
    background: var(--off-white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 35px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

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

.testimonial-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.testimonial-stars {
    display: flex;
    gap: 5px;
}

.testimonial-stars i {
    color: #FFC107;
    font-size: 1.1rem;
}

.testimonial-quote {
    font-size: 2.5rem;
    color: rgba(255, 107, 53, 0.2);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.1), rgba(255, 107, 53, 0.1));
    color: var(--primary-blue);
    border-radius: 50%;
    font-size: 1.5rem;
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 0;
}

/* ========================================
   Areas Section
   ======================================== */
.areas {
    padding: var(--section-padding);
    background: var(--white);
}

.areas-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.areas-description {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.cities-list h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-blue);
}

.cities-list i {
    color: var(--primary-orange);
}

.cities-grid {
    display: grid;
    gap: 15px;
}

.city-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 1rem;
    line-height: 1.6;
}

.city-item i {
    color: var(--success);
    font-size: 1.2rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.areas-cta {
    margin-top: 2rem;
    padding: 20px;
    background: var(--off-white);
    border-left: 4px solid var(--primary-orange);
    border-radius: 8px;
}

.areas-cta p {
    margin-bottom: 1rem;
}

.phone-link {
    color: var(--primary-blue);
    font-weight: 600;
}

.phone-link:hover {
    color: var(--primary-orange);
}

.areas-map {
    position: sticky;
    top: 100px;
}

.map-wrapper {
    width: 100%;
    height: 450px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 20px;
}

.map-info {
    display: grid;
    gap: 15px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: var(--off-white);
    border-radius: 8px;
}

.info-item i {
    color: var(--primary-orange);
    font-size: 1.3rem;
    margin-top: 3px;
}

.info-item strong {
    display: block;
    margin-bottom: 5px;
    color: var(--dark-blue);
}

.info-item p {
    margin-bottom: 0;
    color: var(--gray);
    font-size: 0.95rem;
}

.info-item a {
    color: var(--primary-blue);
    font-weight: 600;
}

.info-item a:hover {
    color: var(--primary-orange);
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    padding: var(--section-padding);
    background: var(--off-white);
}

.faq-grid {
    display: grid;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.faq-item.active {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    cursor: pointer;
    gap: 20px;
    transition: var(--transition-fast);
}

.faq-question:hover {
    background: var(--off-white);
}

.faq-question h3 {
    font-size: 1.15rem;
    margin-bottom: 0;
    color: var(--dark-blue);
}

.faq-question i {
    font-size: 1.2rem;
    color: var(--primary-orange);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 2000px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 30px 25px;
}

.faq-answer ul {
    margin-top: 1rem;
}

.faq-answer li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.faq-answer li strong {
    color: var(--primary-blue);
}

/* ========================================
   CTA Banner
   ======================================== */
.cta-banner {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-orange) 0%, #FF8555 100%);
    color: var(--white);
}

.cta-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-text h2 {
    color: var(--white);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

.cta-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 0;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    padding: 60px 0 30px;
    background: var(--dark-blue);
    color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-orange);
}

.footer-logo strong {
    color: var(--white);
}

.footer-description {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-contact {
    display: grid;
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.contact-item i {
    color: var(--primary-orange);
    font-size: 1.1rem;
    width: 20px;
}

.contact-item a:hover {
    color: var(--white);
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: grid;
    gap: 10px;
}

.footer-links li {
    font-size: 0.95rem;
}

.footer-links a {
    display: block;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-orange);
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.footer-certifications {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-certifications span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.footer-certifications i {
    color: var(--primary-orange);
}

/* ========================================
   Scroll to Top Button
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-orange);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
}

/* ========================================
   Responsive Design - Tablets
   ======================================== */
@media (max-width: 992px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 30px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
        transition: var(--transition-normal);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .about-grid,
    .areas-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   Responsive Design - Mobile
   ======================================== */
@media (max-width: 768px) {
    :root {
        --section-padding: 50px 0;
    }
    
    .btn-call span {
        display: none;
    }
    
    .hero {
        min-height: 90vh;
        padding: 100px 0 50px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .services-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .areas-map {
        position: static;
    }
    
    .map-wrapper {
        height: 350px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .service-card,
    .feature-card,
    .testimonial-card {
        padding: 25px;
    }
    
    .faq-question {
        padding: 20px;
    }
    
    .faq-answer p,
    .faq-answer ul {
        padding: 0 20px 20px;
    }
}

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

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ========================================
   Loading Animation
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header,
    .hamburger,
    .scroll-top,
    .cta-banner {
        display: none;
    }
}