:root {
    --primary-color: #1F3044; 
    --accent-color: #3a9ae8; 
    --light-bg: #F9F9F9;
    --text-dark: #333;
    --text-light: #fff;
    --max-width: 1200px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5em; 
    color: var(--primary-color); 
}
.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
}

/* --- Utility & CTA Buttons --- */
.cta-button, .primary-cta-btn, .secondary-cta-btn {
    text-decoration: none;
    font-weight: 600;
    padding: 12px 25px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    display: inline-block;
    text-align: center;
}

.cta-button {
    background-color: var(--accent-color);
    color: var(--text-light);
    border: 2px solid var(--accent-color);
}
.cta-button:hover {
    background-color: #3a9ae8;
    border-color: #3a9ae8;
}

.primary-cta-btn {
    background-color: var(--accent-color);
    color: var(--text-light);
    margin-top: 20px;
    font-size: 1.1em;
}
.primary-cta-btn:hover {
    background-color: var(--primary-color);
}

.secondary-cta-btn {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-top: 40px;
}
.secondary-cta-btn:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

/* --- 1. Header & Navigation (Default, Solid Header for non-homepage pages) --- */
#header-placeholder {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000; 
    background-color: var(--text-light);
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background-color: transparent; 
    border-bottom: 1px solid #eee; 
}

.main-nav ul {
    list-style: none;
    display: flex;
}

.main-nav ul li a {
    text-decoration: none;
    color: var(--text-dark);
    padding: 10px 15px;
    font-weight: 600;
    font-size: large;
    transition: color 0.3s ease;
}

.main-nav ul li a:hover, .main-nav ul li a.active {
    color: var(--accent-color);
}


#header-placeholder.transparent-header {
    position: absolute;
    top: 0;
    background-color: rgba(31, 48, 68, 0); 
    z-index: 2000;
}

#header-placeholder.transparent-header .main-header {
    border-bottom: none;
    position: relative; 
}

#header-placeholder.transparent-header .logo, 
#header-placeholder.transparent-header .logo span,
#header-placeholder.transparent-header .main-nav ul li a {
    color: var(--text-light); 
}


/* --- 2. Hero Section --- */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-light);
    overflow: hidden; 
}

/* Slideshow Container Styling */
.slideshow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0; 
}

.slide-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    opacity: 0; 
    transition: opacity 1.5s ease-in-out; 
}

.slide-image.active {
    opacity: 1; 
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4); 
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2; 
    padding: 20px;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3.5em;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.3em;
    font-weight: 300;
    margin-bottom: 30px;
}

/* Custom Header for other pages like services.html */
.page-hero-header {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 80px 20px 60px;
    text-align: center;
}
.page-hero-header h1 {
    font-size: 3em;
    margin-bottom: 10px;
}
.page-hero-header p {
    font-size: 1.1em;
    font-weight: 300;
}

/* Styling for the new section layout */
.services-list-section {
    padding: 60px 20px;
}
.services-list-section h2 {
    font-size: 1.8em;
    color: var(--accent-color);
    margin: 40px 0 20px;
    padding-top: 20px;
    border-top: 1px solid #ddd;
}
.services-list-section h2:first-of-type {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
}


/* --- 3. SSA Difference Section --- */
.difference-section {
    padding: 80px 20px;
    text-align: center;
    background-color: var(--light-bg);
}

.difference-section h2 {
    font-size: 2em;
    margin-bottom: 50px;
    color: var(--primary-color);
}

.cards-grid {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.card {
    flex: 1;
    max-width: 300px;
    padding: 30px;
    background-color: var(--text-light);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.card i {
    font-size: 2.5em;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.card h3 {
    font-size: 1.4em;
    margin-bottom: 10px;
    color: var(--primary-color);
}

/* --- 4. Featured Projects Section --- */
.featured-projects {
    padding: 80px 0;
    text-align: center;
}

.featured-projects h2 {
    font-size: 2em;
    margin-bottom: 60px;
    color: var(--primary-color);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: left;
    transition: transform 0.3s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.project-image-placeholder {
    height: 300px;
    background-color: #ccc; 
    background-size: cover;
    background-position: center;
    transition: opacity 0.3s ease;
}
.project-image-placeholder.residential { background-image: url('placeholder-res.jpg'); }
.project-image-placeholder.commercial { background-image: url('placeholder-com.jpg'); }
.project-image-placeholder.renovation { background-image: url('placeholder-ren.jpg'); }

.project-info {
    padding: 20px;
}

.project-info h3 {
    font-size: 1.3em;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.project-info p {
    color: #666;
    margin-bottom: 15px;
}

.project-info a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}
.project-info a:hover {
    text-decoration: underline;
}

/* --- 5. Testimonial Section --- */
.testimonial-section {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 80px 20px;
    text-align: center;
}

.testimonial-content {
    max-width: 700px;
    margin: 0 auto;
}

.testimonial-content i {
    font-size: 3em;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.testimonial-content p {
    font-size: 1.4em;
    font-style: italic;
    margin-bottom: 20px;
}

.client-name {
    font-weight: 600;
    font-size: 1.1em;
}

/* --- 6. Contact CTA Section --- */
.contact-cta-section {
    padding: 80px 20px;
    text-align: center;
    background-color: var(--light-bg);
}

.contact-cta-section h2 {
    font-size: 2.2em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-cta-section p {
    font-size: 1.1em;
    margin-bottom: 30px;
}

/* --- Footer --- */
footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 40px 0 10px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--accent-color);
}

.footer-links, .footer-contact {
    display: flex;
    flex-direction: column;
}

.footer-links h4, .footer-contact h4 {
    margin-bottom: 15px;
    font-size: 1.1em;
    font-weight: 600;
}

.footer-links a, .footer-contact p {
    color: #ccc;
    text-decoration: none;
    margin-bottom: 8px;
    font-size: 0.95em;
}
.footer-links a:hover {
    color: var(--accent-color);
}

.footer-contact i {
    margin-right: 10px;
    color: var(--accent-color);
}

.social-icons a {
    font-size: 1.5em;
    margin-right: 15px;
    color: var(--text-light);
    transition: color 0.3s ease;
}
.social-icons a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    font-size: 0.8em;
    color: #999;
    padding-top: 15px;
}

@media (max-width: 900px) {
    
    .main-header {
        flex-direction: column;
        padding: 20px;
    }
    .main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        margin: 15px 0;
        list-style: none;
        padding: 0; 
        display: flex; 
    }
    
    .main-nav ul li a {
        padding: 5px 10px;
    }
    
    #header-placeholder {
        position: relative; 
        background-color: var(--primary-color);
        z-index: 1000;
    }
    
    .logo, .logo span, .main-nav ul li a {
        color: var(--text-light);
    }
    
    #header-placeholder.transparent-header {
        position: relative !important; 
        background-color: var(--primary-color) !important; 
    }

    .cards-grid {
        flex-direction: column;
    }
    .card {
        max-width: 100%;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .footer-links, .footer-contact {
        align-items: center;
    }
}

@media (max-width: 600px) {
    .logo-img { height: 32px; } 
    .logo { font-size: 1.2em; }
    .hero-content h1 {
        font-size: 2.5em;
    }
    .project-grid {
        grid-template-columns: 1fr;
    }
}