:root {
    --pastel-blue-primary: #B0E0E6; /* Powder Blue */
    --pastel-blue-light: #E0FFFF; /* Light Cyan */
    --pastel-blue-accent: #F0F8FF; /* Alice Blue */
    --lavender: #E6E6FA;
    --dark-blue-text: #4682B4; /* Steel Blue */
    --primary-dark-text: #36454F; /* Charcoal */
    --heading-font: 'Playfair Display', serif;
    --body-font: 'Nunito', sans-serif;
    --transition-speed: 0.3s ease;
}

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

body {
    font-family: var(--body-font);
    color: var(--primary-dark-text);
    background-color: var(--pastel-blue-light);
    line-height: 1.6;
    font-size: 16px;
}

/* --- Typography & Links --- */
h1, h2, h3 {
    font-family: var(--heading-font);
    font-weight: 700;
    color: var(--dark-blue-text);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 4rem;
}

a {
    color: var(--pastel-blue-primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}
a:hover { color: #9AC8D0; }

/* --- Buttons --- */
.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: inline-block;
}
.btn-primary {
    background-color: var(--pastel-blue-primary);
    color: var(--dark-blue-text);
}
.btn-primary:hover {
    background-color: #9AC8D0;
    transform: translateY(-2px);
}
.btn-secondary {
    background-color: var(--dark-blue-text);
    color: var(--pastel-blue-light);
}
.btn-secondary:hover {
    background-color: #4a4a4a;
    transform: translateY(-2px);
}
.btn-large { padding: 1rem 3rem; }

/* --- Header & Navigation --- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(224, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    transition: all var(--transition-speed);
}
.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-family: var(--heading-font);
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-blue-text);
}
.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2rem;
}
.nav-links a {
    color: var(--dark-blue-text);
    font-weight: 600;
}
.nav-links a:not(.btn):hover {
    color: var(--pastel-blue-primary);
}
.hamburger { display: none; background: none; border: none; cursor: pointer; }

/* --- Hero Section --- */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh;
    padding: 5rem 2rem;
    background: url('assets/images/hero-image.png') no-repeat center center/cover;
    color: var(--dark-blue-text);
}
.hero-content {
    max-width: 800px;
    animation: fadeIn 1.5s ease-in-out;
}
.hero-title { margin-bottom: 1rem; }
.hero-tagline {
    font-family: var(--body-font);
    font-size: 1.5rem;
    font-weight: 400;
    font-style: italic;
    color: var(--dark-blue-text);
    margin-bottom: 1.5rem;
}
.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    font-weight: 300;
}

/* --- Content Sections --- */
.content-section {
    padding: 6rem 5%;
}
.content-section-dark {
    background-color: var(--pastel-blue-accent);
    padding: 6rem 5%;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    text-align: center;
}
.benefit-card {
    padding: 2rem;
    border-radius: 15px;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}
.benefit-card img {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 10px;
    margin-bottom: 1.5rem;
}

/* Product Showcase */
.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
}
.product-image img {
    width: 100%;
    border-radius: 15px;
}
.ingredients-list {
    list-style: none;
    margin-top: 1.5rem;
}
.ingredients-list li {
    padding: 0.5rem 0 0.5rem 2rem;
    position: relative;
    font-weight: 600;
}
.ingredients-list li::before {
    content: '✓';
    color: var(--pastel-blue-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Testimonials */
.testimonial-slider {
    display: flex;
    gap: 2rem;
    justify-content: center;
}
.testimonial {
    background: var(--pastel-blue-light);
    padding: 2rem;
    border-radius: 15px;
    max-width: 400px;
    border-left: 5px solid var(--pastel-blue-primary);
}
.testimonial cite {
    display: block;
    margin-top: 1rem;
    font-style: normal;
    font-weight: 600;
    text-align: right;
}

/* Contact Form */
.contact-form-section { text-align: center; }
.contact-form {
    max-width: 600px;
    margin: 2rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid #ddd;
    font-family: var(--body-font);
    font-size: 1rem;
}
.contact-form textarea {
    min-height: 150px;
    resize: vertical;
}

/* --- Footer --- */
.main-footer-bar {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--dark-blue-text);
    color: var(--pastel-blue-light);
    font-size: 0.9rem;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--pastel-blue-light);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-speed);
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    }
    .nav-links.active { right: 0; }
    .hamburger {
        display: block;
        z-index: 1001;
    }
    .product-showcase {
        grid-template-columns: 1fr;
    }
    .testimonial-slider {
        flex-direction: column;
    }
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.content-section, .content-section-dark {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.content-section.visible, .content-section-dark.visible {
    opacity: 1;
    transform: translateY(0);
}