:root {
    --color-primary: #D32F2F; /* Strawberry Red */
    --color-primary-dark: #B71C1C;
    --color-secondary: #388E3C; /* Fresh Green */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg-light: #F9F9F9;
    --color-white: #FFFFFF;
    --font-main: 'Montserrat', sans-serif;
    --font-body: 'PT Sans', sans-serif;
    --transition: 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    background-color: transparent; /* Changed from var(--color-white) */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section__title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--color-primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-family: var(--font-main);
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    font-size: 1rem;
}

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

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

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

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

.btn--full {
    width: 100%;
    text-align: center;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.85); /* Semi-transparent */
    backdrop-filter: blur(10px); /* Glassmorphism */
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.header.scrolled {
    padding: 10px 0;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-main);
    color: var(--color-primary);
    text-shadow: 0 2px 4px rgba(211, 47, 47, 0.1);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav__list {
    display: flex;
    gap: 30px;
}

.nav__list a {
    position: relative;
    font-weight: 600;
    padding: 5px 0;
}

.nav__list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
    border-radius: 2px;
}

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

.nav__list a:hover::after {
    width: 100%;
}

/* Parallax Background */
.parallax-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%); /* Base background */
}

.parallax-item {
    position: absolute;
    opacity: 0.6;
    user-select: none;
    will-change: transform;
    filter: drop-shadow(0 5px 15px rgba(0,0,0,0.1));
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #FFF5F5 0%, #FFFFFF 100%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero__content, .hero__image {
    min-width: 0; /* Prevent grid blowout */
}

.hero__title {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 30px;
}

.hero__actions {
    display: flex;
    gap: 15px;
}

/* Slider */
.slider {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.slider__slides {
    width: 100%;
    height: 100%;
    position: relative;
}

.slider__img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slider__img.active {
    opacity: 1;
}

.slider__btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 10;
}

.slider__btn:hover {
    background: rgba(211, 47, 47, 0.8);
}

.slider__btn--prev {
    left: 20px;
}

.slider__btn--next {
    right: 20px;
}

/* Method Section */
.method {
    background-color: var(--color-white);
}

.method__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.method__content, .method__visual {
    min-width: 0; /* Prevent grid blowout */
}

.method__list li {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

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

.safety__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.safety__card {
    background: var(--color-white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.safety__card:hover {
    transform: translateY(-5px);
}

.safety__icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* Benefits Section */
.benefits__list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.benefit__item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.benefit__icon {
    font-size: 2.5rem;
    background: #E8F5E9;
    width: 70px;
    height: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    flex-shrink: 0;
}

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

.reviews__carousel {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding: 0 40px;
}

.review__card {
    display: none;
    padding: 40px;
    background: var(--color-white);
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.review__card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.review__text {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 20px;
}

.review__author {
    font-weight: 700;
    color: var(--color-primary);
}

.reviews__controls {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.reviews__btn {
    background: transparent;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-primary);
    transition: var(--transition);
}

.reviews__btn:hover {
    color: var(--color-primary-dark);
}

/* Order Section */
.order {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.order .section__title {
    color: var(--color-white);
}

.order__wrapper {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.order__subtitle {
    margin-bottom: 40px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.order__form {
    background: var(--color-white);
    padding: 40px;
    border-radius: 20px;
    color: var(--color-text);
    text-align: left;
}

.form__group {
    margin-bottom: 20px;
}

.form__group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form__group input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
}

.form__group.checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form__group.checkbox input {
    width: auto;
}

.form__group.checkbox label {
    margin-bottom: 0;
    font-weight: 400;
}

/* Footer */
.footer {
    background-color: #222;
    color: #fff;
    padding: 60px 0 20px;
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer h3 {
    color: var(--color-white);
    margin-bottom: 20px;
}

.socials {
    display: flex;
    gap: 15px;
}

.socials a {
    color: #ccc;
}

.socials a:hover {
    color: var(--color-white);
}

.footer__bottom {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: 20px;
    color: #888;
    font-size: 0.9rem;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero__container,
    .method__grid {
        grid-template-columns: 1fr;
    }

    .hero__title {
        font-size: 2.2rem;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-white);
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        text-align: center;
        z-index: 100; /* Ensure menu is above other content */
    }

    .nav.active {
        display: block;
    }

    .nav__list {
        flex-direction: column;
        gap: 15px;
    }
    
    .header__container {
        justify-content: space-between;
        position: relative;
    }

    .section {
        padding: 50px 0;
    }

    .slider {
        height: 250px; /* Smaller height for mobile */
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}