:root {
    --deep-charcoal: #2A2D34;
    --metallic-copper: #B87333;
    --copper-light: #d6985f;
    --light-bg: #F9F9FB;
    --white: #FFFFFF;
    --text-main: #4A4A4A;
    --grey-brand: #4A4A4A;
    --radius: 12px;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 40px rgba(0,0,0,0.05);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.2);
    --transition: 0.4s ease-in-out;
}

/* THEME SYSTEM: Traditional Dark vs Light Mode Mapping */
body.dark-theme {
    --bg-main: #121212;
    --bg-section: #1A1A1A;
    --bg-card: #1E1E1E;
    --bg-nav: #1E1E1E;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --hero-bg: var(--deep-charcoal);
    --hero-glass: rgba(42, 45, 52, 0.7);
    --hero-border: rgba(184, 115, 51, 0.2);
    --border-color: #333333;
    --shadow: 0 10px 40px rgba(0,0,0,0.4);
}

body.light-theme {
    --bg-main: #F9F9FB;
    --bg-section: #F1F1F4;
    --bg-card: #FFFFFF;
    --bg-nav: #FFFFFF;
    --text-primary: #2A2D34;
    --text-secondary: #4A4A4A;
    --hero-bg: #FFFFFF;
    --hero-glass: rgba(255, 255, 255, 0.7);
    --hero-border: rgba(255, 255, 255, 0.3);
    --border-color: #EEEEEE;
    --shadow: 0 10px 40px rgba(0,0,0,0.05);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-family: 'Inter', sans-serif; }
body { background-color: var(--bg-main); color: var(--text-primary); line-height: 1.6; transition: background-color var(--transition), color var(--transition); }

section[id] { scroll-margin-top: 110px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { color: var(--text-primary); font-weight: 800; line-height: 1.2; transition: color var(--transition); }
.copper-text { color: var(--metallic-copper) !important; }
.mt-80 { margin-top: 80px; } 

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
}
.btn-primary { background-color: var(--metallic-copper); color: var(--white); border: 2px solid var(--metallic-copper); }
.btn-primary:hover { background-color: transparent; color: var(--metallic-copper); }
.btn-secondary { background-color: transparent; color: var(--text-primary); border: 2px solid var(--text-primary); }
.btn-secondary:hover { background-color: var(--text-primary); color: var(--bg-main); }
.card-btn { width: 100%; display: block; }

/* Navigation */
.navbar { 
    background-color: var(--bg-nav); 
    padding: 8px 0; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    transition: background-color var(--transition);
}
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo-img { height: 90px; width: auto; transition: height 0.3s ease; }

.nav-controls { display: flex; align-items: center; gap: 15px; }

/* Groups the controls and nav links together for desktop view */
.nav-right { display: flex; align-items: center; gap: 20px; }

.nav-links { list-style: none; display: flex; align-items: center; gap: 30px; }
.nav-links a { text-decoration: none; color: var(--text-primary); font-weight: 600; transition: color var(--transition); }

/* Enquire Now Button Override */
.nav-links .btn-primary { color: var(--white); }
.nav-links .btn-primary:hover { color: var(--metallic-copper); }

/* Mobile Enquire Button */
.mobile-enquire-btn {
    display: none; 
}

/* Theme Toggle Button Styling */
.theme-toggle-btn {
    background: none; border: 2px solid var(--text-primary); 
    border-radius: 50%; width: 40px; height: 40px; cursor: pointer;
    display: flex; justify-content: center; align-items: center;
    color: var(--text-primary); transition: var(--transition);
}
.theme-toggle-btn:hover { background: var(--text-primary); color: var(--bg-nav); }

body.dark-theme .sun-icon { display: block; }
body.dark-theme .moon-icon { display: none; }
body.light-theme .sun-icon { display: none; }
body.light-theme .moon-icon { display: block; }

.hamburger { display: none; cursor: pointer; border: none; background: none; }
.hamburger .bar { display: block; width: 25px; height: 3px; margin: 5px auto; background-color: var(--text-primary); transition: var(--transition); }

/* Hero Section */
.hero { 
    padding: 140px 0; 
    background-color: var(--hero-bg); 
    text-align: center; 
    position: relative; 
    overflow: hidden; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    min-height: 80vh; 
    transition: background-color var(--transition);
}

#tsparticles { 
    position: absolute; 
    inset: 0; 
    z-index: 1; 
}

.hero-content { position: relative; z-index: 10; width: 100%; }

.hero-glass-card { 
    background: var(--hero-glass); 
    backdrop-filter: blur(16px); 
    -webkit-backdrop-filter: blur(16px); 
    padding: 60px 40px; 
    border-radius: var(--radius); 
    max-width: 900px; 
    margin: 0 auto; 
    border: 1px solid var(--hero-border); 
    box-shadow: var(--shadow); 
    transition: var(--transition);
}

.hero h1 { font-size: 3.5rem; margin-bottom: 25px; color: var(--text-primary); }
.hero p { font-size: 1.25rem; max-width: 700px; margin: 0 auto 40px; color: var(--text-secondary); transition: color var(--transition); }

.hero-buttons { 
    display: flex; 
    gap: 20px; 
    justify-content: center; 
}
.hero-buttons .btn { width: 220px; }

/* About Section Branding */
.about { padding: 80px 0; background-color: var(--bg-section); transition: background-color var(--transition); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about h2 { color: var(--metallic-copper); font-size: 2.5rem; margin-bottom: 20px; }

.stat-box { 
    background-color: var(--bg-card); 
    padding: 30px; 
    border: 1px solid var(--border-color); 
    margin-bottom: 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}
.stat-content { text-align: left; }
.stat-box h3 { color: var(--metallic-copper); margin-bottom: 5px; }

.stat-icon {
    width: 40px; height: 40px; background-color: rgba(184, 115, 51, 0.15);
    color: var(--metallic-copper); border-radius: 50%; display: flex;
    justify-content: center; align-items: center;
    flex-shrink: 0;
}
.stat-icon i { width: 20px; height: 20px; }

/* Service Section */
.services { padding: 100px 0; background-color: var(--bg-main); transition: background-color var(--transition); }
.section-title { text-align: center; font-size: 2.5rem; margin-bottom: 10px; }
.section-subtitle { text-align: center; margin-bottom: 60px; font-size: 1.1rem; color: var(--text-secondary); }
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 15px; align-items: stretch; }
.service-card { background: var(--bg-card); padding: 30px 20px; border-radius: var(--radius); border: 1px solid var(--border-color); display: flex; flex-direction: column; position: relative; transition: var(--transition); box-shadow: var(--shadow); }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.15); }
.service-card.highlight { border: 2px solid var(--metallic-copper); box-shadow: 0 15px 40px rgba(184, 115, 51, 0.12); }
.most-popular { position: absolute; top: 0; left: 50%; transform: translate(-50%, -50%); background: var(--metallic-copper); color: white; padding: 4px 16px; border-radius: 20px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }

.card-header { text-align: center; margin-bottom: 25px; }
.card-price { text-align: center; margin-bottom: 25px; }
.price-amount { font-size: 2.5rem; font-weight: 800; color: var(--text-primary); display: block; transition: color var(--transition); }
.feature-list { list-style: none; flex-grow: 1; margin-bottom: 25px; }
.feature-list li { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.88rem; }
.feature-list i { color: var(--metallic-copper); flex-shrink: 0; width: 16px; height: 16px; }

/* Contact Section & Form */
.cta { background-color: var(--bg-section); padding: 100px 0; transition: background-color var(--transition); }
.cta-split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.cta-info h2 { color: var(--metallic-copper); font-size: 3rem; margin-bottom: 20px; }
.cta-info p { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 40px; }
.cta-benefits { list-style: none; }
.cta-benefits li { display: flex; align-items: center; gap: 15px; font-size: 1.1rem; margin-bottom: 20px; font-weight: 600; color: var(--text-primary); transition: color var(--transition); }
.cta-benefits i { color: var(--metallic-copper); }

.form-container { background: var(--bg-card); padding: 50px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border-color); color: var(--text-main); transition: var(--transition); }
.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group label { font-size: 0.85rem; font-weight: 800; text-transform: uppercase; color: var(--text-primary); display: block; margin-bottom: 8px; transition: color var(--transition); }
.form-group input[type="text"], .form-group input[type="email"], .form-group textarea { width: 100%; padding: 14px; background-color: var(--bg-main); color: var(--text-primary); border: 1px solid var(--border-color); border-radius: 6px; font-size: 1rem; transition: var(--transition); }
.form-group input[type="text"]:focus, .form-group input[type="email"]:focus, .form-group textarea:focus { border-color: var(--metallic-copper); outline: none; box-shadow: 0 0 0 4px rgba(184, 115, 51, 0.1); }
.submit-btn { padding: 18px; font-size: 1.1rem; border: none; border-radius: 4px; background-color: var(--metallic-copper); color: var(--white); cursor: pointer; }

/* Premium Checkbox Pills */
.checkbox-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 15px; 
    margin-top: 10px; 
}
.pill-checkbox input[type="checkbox"] {
    display: none; 
}
.pill-checkbox label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 10px;
    background-color: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    margin: 0; 
    text-transform: none; 
    user-select: none;
}
.pill-checkbox label:hover {
    border-color: var(--copper-light);
    color: var(--text-primary);
    background-color: rgba(184, 115, 51, 0.02);
}
.pill-checkbox input[type="checkbox"]:checked + label {
    border-color: var(--metallic-copper);
    background-color: rgba(184, 115, 51, 0.08);
    color: var(--metallic-copper);
    box-shadow: 0 4px 10px rgba(184, 115, 51, 0.1);
}
.pill-checkbox input[type="checkbox"]:checked + label::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 8px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B87333' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes popIn {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Footer & Socials */
footer { background-color: var(--bg-section); color: var(--text-primary); padding: 80px 0 40px; border-top: 1px solid var(--border-color); transition: var(--transition); }
.footer-content { display: flex; justify-content: space-between; align-items: flex-end; }
.footer-left { display: flex; flex-direction: column; gap: 10px; }
.footer-logo h3 { color: var(--text-primary); font-size: 1.8rem; letter-spacing: 2px; }
.footer-logo p { color: var(--metallic-copper); font-weight: 600; }
.copyright { color: var(--text-secondary); font-size: 0.85rem; }

.footer-right { display: flex; flex-direction: column; gap: 15px; align-items: flex-end; }
.footer-socials { display: flex; gap: 15px; }
.footer-socials a { 
    color: var(--text-secondary); transition: var(--transition); 
    display: flex; justify-content: center; align-items: center; 
    width: 40px; height: 40px; border-radius: 50%; 
    background-color: var(--bg-main); border: 1px solid var(--border-color); 
}
.footer-socials a:hover { 
    color: var(--metallic-copper); border-color: var(--metallic-copper); 
    transform: translateY(-3px); 
}
.footer-socials svg { width: 20px; height: 20px; }

.return-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: rgba(184, 115, 51, 0.8); backdrop-filter: blur(8px); border-radius: 50%; z-index: 99; opacity: 0; visibility: hidden; transition: var(--transition); display: flex; justify-content: center; align-items: center; border: none; cursor: pointer; }
.return-to-top.show { opacity: 1; visibility: visible; }
.return-to-top svg { width: 24px; stroke: var(--white); }

/* Desktop Adjustment */
@media (min-width: 1025px) {
    .service-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .hero { padding: 40px 0; }
    .hero h1 { font-size: 2.2rem; }
    .hero-glass-card { padding: 40px 20px; }
    
    .hero-buttons { 
        flex-direction: column; 
        align-items: center;
        gap: 15px; 
    }
    .hero-buttons .btn {
        width: 100%; 
        max-width: 280px; 
    }

    .about-text h2 { text-align: center; } 
    .card-header h3, .card-tagline { text-align: center; } 
    .cta-info { text-align: left; }
    .cta-benefits li { justify-content: flex-start; }
    
    .hamburger { display: block; z-index: 101; }
    
    .mobile-enquire-btn {
        display: flex;
        background-color: var(--metallic-copper);
        color: var(--white);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        justify-content: center;
        align-items: center;
        text-decoration: none;
        transition: var(--transition);
    }
    .mobile-enquire-btn:hover {
        background-color: transparent;
        color: var(--metallic-copper);
        border: 2px solid var(--metallic-copper);
    }
    
    .nav-links {
        position: fixed; left: 0; top: 106px;
        flex-direction: column;
        background: var(--bg-nav); width: 100%; z-index: 100;
        box-shadow: var(--shadow-sm); opacity: 0; visibility: hidden; pointer-events: none; 
        transform: translateY(-10px); transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s, background-color var(--transition);
        border-top: 1px solid var(--border-color);
        padding: 20px 0;
    }
    .nav-links.active { opacity: 1; visibility: visible; pointer-events: all; transform: translateY(0); }
    .logo-img { height: 90px; }
    .nav-links li { margin: 15px 0; }
    .about-grid, .cta-split, .form-row { grid-template-columns: 1fr; }
    .form-container { padding: 30px 20px; }
    .service-grid { grid-template-columns: 1fr; } 
    .stat-box { text-align: left; }

    /* Checkbox Spacing for Mobile */
    .checkbox-grid { grid-template-columns: 1fr; gap: 12px; }

    /* Stack and Centre Footer for Mobile */
    .footer-content { flex-direction: column; text-align: center; align-items: center; gap: 30px; }
    .footer-left { align-items: center; gap: 15px; text-align: center; }
    .footer-right { align-items: center; text-align: center; gap: 20px; }
}