:root {
    /* Cleaning Palette */
    --primary: #00B4D8;
    /* Fresh Blue */
    --secondary: #0077B6;
    /* Deep Ocean */
    --accent: #90E0EF;
    /* Light Sky */
    --bg-body: #F0F8FF;
    /* Alice Blue */
    --bg-card: #FFFFFF;
    --text-main: #333333;
    --text-muted: #666666;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --header-height: 90px;

    /* UI */
    --radius: 12px;
    --shadow: 0 5px 20px rgba(0, 180, 216, 0.15);
}

[data-theme="eco-clean"] {
    --primary: #4CAF50;
    /* Leaf Green */
    --secondary: #2E7D32;
    /* Forest Green */
    --accent: #C8E6C9;
    /* Pale Green */
    --bg-body: #F1F8E9;
    --shadow: 0 5px 20px rgba(76, 175, 80, 0.15);
}

[data-theme="lavender-fresh"] {
    --primary: #9C27B0;
    /* Purple */
    --secondary: #7B1FA2;
    /* Deep Purple */
    --accent: #E1BEE7;
    /* Light Purple */
    --bg-body: #F3E5F5;
    --shadow: 0 5px 20px rgba(156, 39, 176, 0.15);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--secondary);
}

/* Header */
header {
    height: var(--header-height);
    background: white;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

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

.btn-quote {
    background: var(--primary);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.2s, background 0.2s;
}

.btn-quote:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

/* Hero */
.hero {
    padding: 6rem 0;
    background: white;
    border-bottom-right-radius: 100px;
}

.hero-flex {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-img {
    flex: 1;
    position: relative;
}

.hero-img img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.bubble {
    position: absolute;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.5;
    z-index: -1;
}

/* Services */
.services {
    padding: 6rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-body);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--primary);
}

/* Before/After (Simulated) */
.showcase {
    padding: 6rem 0;
    background: var(--secondary);
    color: white;
    border-top-left-radius: 100px;
}

.showcase h2 {
    color: white;
    text-align: center;
    margin-bottom: 3rem;
}

.showcase-grid {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.showcase-item {
    text-align: center;
    max-width: 400px;
}

.showcase-img {
    width: 100%;
    border-radius: var(--radius);
    border: 4px solid white;
}

/* Footer */
footer {
    padding: 4rem 0;
    text-align: center;
    background: white;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-flex {
        flex-direction: column;
    }

    .showcase-grid {
        flex-direction: column;
        align-items: center;
    }

    .nav-links {
        display: none;
    }
}