:root {
    --primary-color: #0066cc;
    --primary-dark: #004c99;
    --secondary-color: #1a1a2e;
    --accent-color: #ff9900;
    --whatsapp-color: #25D366;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f9f9f9;
    --white: #ffffff;
    --border-radius: 8px;
    --shadow-sm: 0 2px 4px 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);
    --transition: all 0.3s ease;
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden; /* Prevent horizontal scroll */
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p { margin-bottom: var(--spacing-sm); color: var(--text-light); }

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: var(--transition);
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-sm { padding: 8px 16px; font-size: 0.9rem; }
.btn-lg { padding: 16px 32px; font-size: 1.1rem; }
.btn-block { width: 100%; display: block; }

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    height: 70px;
    display: flex;
    align-items: center;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem; /* Adjusted for mobile */
    font-weight: 700;
    color: var(--primary-color);
    gap: 8px;
}
.logo-icon { font-size: 1.5rem; }

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

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--secondary-color);
    font-weight: 500;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-phone {
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 600;
    color: var(--secondary-color);
}

.nav-toggle, .nav-close { display: none; } /* Hidden on desktop */

/* Mobile Nav */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%; 
        width: 80%;
        max-width: 300px;
        height: 100vh; /* height: 100% on some mobile browsers causes issues with address bar */
        background-color: var(--white);
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        padding: 4rem 2rem;
        transition: 0.4s ease;
        flex-direction: column;
        align-items: flex-start;
        z-index: 1001; /* Above header */
    }

    .nav-menu.active { right: 0; }

    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }
    
    .nav-link { font-size: 1.2rem; display: block; width: 100%; }

    .nav-toggle {
        display: block;
        cursor: pointer;
        width: 25px;
        height: 20px;
        position: relative;
    }
    
    .nav-toggle span {
        display: block;
        width: 100%;
        height: 3px;
        background-color: var(--secondary-color);
        margin-bottom: 5px;
        border-radius: 2px;
        transition: var(--transition);
    }

    .nav-close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        font-size: 2rem;
        cursor: pointer;
        color: var(--secondary-color);
    }

    .hide-mobile { display: none; }
    .show-mobile { display: block; }

    .logo { font-size: 1.1rem; }
    
    /* Ensure Header button is hidden or smaller on very small screens if needed */
    .nav-actions .btn { display: none; } /* Hide header "Book Now" on mobile, use FAB or Hero CTA */
    
    /* Show "Book Now" inside menu on mobile */
    .mobile-only { display: block; text-align: center; margin-top: 1rem; color: var(--white) !important; background: var(--primary-color); padding: 10px; border-radius: var(--border-radius); }
}

@media (min-width: 769px) {
    .mobile-only { display: none; }
}


/* Hero Section */
.hero {
    position: relative;
    padding-top: 120px; /* Space for fixed header */
    padding-bottom: 80px;
    background-color: var(--bg-light);
    overflow: hidden;
}

/* Background pattern using CSS gradients for lightweight feel */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, #e6f0ff 0%, transparent 40%),
                radial-gradient(circle at bottom left, #e6f0ff 0%, transparent 40%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background-color: rgba(0, 102, 204, 0.1);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3rem; /* Larger for impact */
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-light);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    font-weight: 500;
    color: var(--secondary-color);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 8px 16px;
    border-radius: 50px;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-btns { flex-direction: column; width: 100%; }
    .hero-features { gap: 1rem; }
    .feature-item { font-size: 0.9rem; }
}

/* Trust / Stats Section */
.stats-section {
    background-color: var(--white);
    padding: 4rem 0;
}

.stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-card {
    padding: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-weight: 600;
    color: var(--text-light);
}

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

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

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05); /* Subtle border */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 0.5rem;
}

.service-features-list {
    margin: 1rem 0;
    text-align: left;
    color: var(--text-light);
    width: 100%;
}

.service-features-list li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.service-card .btn {
    margin-top: auto; /* Push button to bottom */
    width: 100%;
}

/* About Section */
.about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 400px;
}

.img-placeholder {
    width: 100%;
    height: 100%;
    background-color: #e0e0e0; /* Fallback color */
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); /* Gradient placeholder */
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #666;
}

.check-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-weight: bold;
}

@media (max-width: 768px) {
    .about-grid { grid-template-columns: 1fr; }
    .about-image { height: 300px; order: -1; margin-bottom: 2rem; }
}

/* Technicians */
.tech-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.tech-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.tech-img-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background-color: #f0f0f0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.tech-role {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.2rem;
}

.tech-spec {
    font-size: 0.9rem;
    color: var(--text-light);
}

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

.review-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.review-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.stars {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.reviewer {
    margin-top: 1rem;
    font-weight: 600;
    text-align: right;
    font-size: 0.9rem;
    color: var(--primary-dark);
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #eee;
    margin-bottom: 1rem;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1rem 0;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question .icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-light);
}

.faq-item.active .faq-answer {
    max-height: 200px; /* Approximate height */
}

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

/* CTA Banner */
.cta-banner {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

.cta-banner h2 { color: var(--white); }
.cta-banner p { color: rgba(255,255,255,0.9); max-width: 600px; margin: 0 auto 2rem; }

.banner-btns {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-light {
    background: var(--white);
    color: var(--primary-color);
}
.btn-light:hover { background: #f0f0f0; }

.btn-outline-light {
    border: 2px solid var(--white);
    color: var(--white);
}
.btn-outline-light:hover { background: var(--white); color: var(--primary-color); }

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: #ccc;
    padding-top: 4rem;
}

.footer-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
    display: block;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.9rem;
    background-color: #111122;
}

/* Floating Buttons */
.float-btn {
    position: fixed;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-whatsapp {
    bottom: 20px;
    right: 20px;
    background-color: var(--whatsapp-color);
}

.float-phone {
    bottom: 90px;
    right: 20px;
    background-color: var(--primary-color);
}

.whatsapp-icon {
    width: 35px;
    height: 35px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 2000;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-container {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    color: var(--text-light);
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--secondary-color);
}

.form-group input, .form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.form-footer {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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