/* ===== BASE STYLES ===== */
:root {
    --primary: #2DAD41;
    --primary-dark: #1E7A2E;
    --primary-light: #4ACF61;
    --secondary: #8BC34A;
    --accent: #FFEB3B;
    --light: #F5F5F5;
    --dark: #263238;
    --text: #333333;
    --text-light: #666666;
    --white: #FFFFFF;
    --black: #000000;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
    position: relative;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.8rem;
}

p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

/* ===== LAYOUT ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    position: relative;
    display: inline-block;
    margin-bottom: 1rem;
}

.section-title i {
    margin-right: 1rem;
    color: var(--primary);
}

.section-title::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 4px;
    background: var(--accent);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== BUTTONS ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--primary);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--primary);
    cursor: pointer;
    font-size: 1rem;
}

.cta-button i {
    font-size: 1.2rem;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.cta-button.secondary {
    background: transparent;
    color: var(--primary);
}

.cta-button.secondary:hover {
    background: var(--primary);
    color: var(--white);
}

/* ===== LOADER ===== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader-leaf {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50% 0 50% 50%;
    animation: pulse 1.5s infinite ease-in-out;
    margin-bottom: 1rem;
}

.loader p {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.2rem;
}

@keyframes pulse {
    0%, 100% { transform: scale(0.8); opacity: 0.7; }
    50% { transform: scale(1); opacity: 1; }
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo::before {
    content: '';
    display: inline-block;
    width: 30px;
    height: 30px;
    background: var(--primary);
    mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12,2C13.1,2 14,2.9 14,4C14,5.1 13.1,6 12,6C10.9,6 10,5.1 10,4C10,2.9 10.9,2 12,2M15.5,8C16.3,8 17,8.7 17,9.5C17,10.3 16.3,11 15.5,11C14.7,11 14,10.3 14,9.5C14,8.7 14.7,8 15.5,8M8.5,8C9.3,8 10,8.7 10,9.5C10,10.3 9.3,11 8.5,11C7.7,11 7,10.3 7,9.5C7,8.7 7.7,8 8.5,8M12,11.5C13.04,11.5 14.06,11.7 15,12.07C15,13.13 15,14.19 15,15.25C15,18.39 12,22 12,22C12,22 9,18.39 9,15.25C9,13.55 9,11.85 9.95,10.9C10.43,10.42 11.2,10.5 12,10.5H12.25C12.25,10.5 12.25,10.5 12.25,10.5C12.16,11 12,11.5 12,11.5Z'/%3E%3C/svg%3E") no-repeat center;
    mask-size: contain;
}

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

nav ul li a {
    font-weight: 600;
    position: relative;
    padding: 0.5rem 0;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary);
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    min-height: 800px;
    background: linear-gradient(135deg, rgba(45, 173, 65, 0.1) 0%, rgba(255, 255, 255, 1) 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    max-width: 600px;
    z-index: 2;
    position: relative;
}

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

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.hero-image {
    position: absolute;
    right: 5%;
    height: 80%;
    max-height: 700px;
    animation: float 6s ease-in-out infinite;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.particle {
    position: absolute;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%232DAD41'%3E%3Cpath d='M12,2C13.1,2 14,2.9 14,4C14,5.1 13.1,6 12,6C10.9,6 10,5.1 10,4C10,2.9 10.9,2 12,2M15.5,8C16.3,8 17,8.7 17,9.5C17,10.3 16.3,11 15.5,11C14.7,11 14,10.3 14,9.5C14,8.7 14.7,8 15.5,8M8.5,8C9.3,8 10,8.7 10,9.5C10,10.3 9.3,11 8.5,11C7.7,11 7,10.3 7,9.5C7,8.7 7.7,8 8.5,8M12,11.5C13.04,11.5 14.06,11.7 15,12.07C15,13.13 15,14.19 15,15.25C15,18.39 12,22 12,22C12,22 9,18.39 9,15.25C9,13.55 9,11.85 9.95,10.9C10.43,10.42 11.2,10.5 12,10.5H12.25C12.25,10.5 12.25,10.5 12.25,10.5C12.16,11 12,11.5 12,11.5Z'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.3;
    animation: float-particle linear infinite;
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-20px) translateX(-50%); }
    60% { transform: translateY(-10px) translateX(-50%); }
}

@keyframes float-particle {
    to {
        transform: translateY(-100vh);
    }
}

/* ===== PRODUCT SECTION ===== */
.product-container {
    display: flex;
    align-items: center;
    gap: 5rem;
    margin-top: 3rem;
}

.product-image {
    flex: 1;
    position: relative;
    height: 500px;
}

.product-image img {
    position: absolute;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    transition: all 0.5s ease;
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--accent);
    color: var(--dark);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow);
}

.product-info {
    flex: 1;
}

.product-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.feature-icon {
    font-size: 1.8rem;
    color: var(--secondary);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(139, 195, 74, 0.1);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-text h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.feature-text p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Formula Section */
.formula {
    background: var(--light);
    padding: 2rem;
    border-radius: 20px;
    margin-top: 2rem;
}

.formula-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.formula-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.formula-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
}

.formula-item:last-child {
    border-bottom: none;
}

/* ===== SCIENCE SECTION ===== */
.science-section {
    background: var(--light);
}

.science-cards {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.science-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    text-align: center;
}

.science-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.science-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.science-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.science-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.science-card .cta-button {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

/* Clinical Study */
.clinical-study {
    display: flex;
    align-items: center;
    gap: 3rem;
    margin-top: 4rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.study-visual {
    flex: 1;
    padding: 1rem;
}

.study-bar {
    margin-bottom: 2rem;
}

.bar-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
}

.bar-fill {
    height: 30px;
    background: var(--primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    padding-left: 1rem;
    color: var(--white);
    font-weight: 600;
    position: relative;
    transition: width 1.5s ease;
}

.bar-fill span {
    position: relative;
    z-index: 2;
}

.leptoci-bar .bar-fill {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.control-bar .bar-fill {
    background: linear-gradient(90deg, #666, #999);
}

.study-details {
    flex: 1;
}

.study-details h3 {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.study-details p {
    margin-bottom: 1.5rem;
}

/* ===== HOW TO USE SECTION ===== */
.usage-container {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

.usage-steps {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.usage-step {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.usage-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.step-number {
    font-size: 2rem;
    color: var(--white);
    background: var(--primary);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.usage-step h3 {
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.usage-step p {
    font-size: 0.95rem;
}

.usage-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.detail-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.detail-card ul {
    list-style: none;
}

.detail-card ul li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-card ul li i {
    width: 20px;
    text-align: center;
}

.warning-card {
    border-left: 4px solid var(--accent);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-section {
    background: linear-gradient(135deg, rgba(45, 173, 65, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
}

.testimonial-slider {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    gap: 2rem;
    padding: 1rem 0;
    margin: 0 -2rem;
    padding: 1rem 2rem;
    scrollbar-width: none;
}

.testimonial-slider::-webkit-scrollbar {
    display: none;
}

.testimonial {
    scroll-snap-align: start;
    flex: 0 0 80%;
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 2rem;
    font-size: 5rem;
    color: rgba(45, 173, 65, 0.1);
    font-family: serif;
    line-height: 1;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--primary);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    position: relative;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary);
    margin-top: 1rem;
    font-size: 1.1rem;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 2rem;
}

.slider-prev, .slider-next {
    background: var(--white);
    color: var(--primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.slider-prev:hover, .slider-next:hover {
    background: var(--primary);
    color: var(--white);
}

.slider-dots {
    display: flex;
    gap: 0.5rem;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: var(--transition);
}

.slider-dot.active {
    background: var(--primary);
    transform: scale(1.2);
}

/* ===== WHERE TO BUY SECTION ===== */
.buy-container {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.pharmacy-map {
    flex: 1;
    position: relative;
    min-height: 400px;
    background: #f9f9f9;
    border-radius: 15px;
    overflow: hidden;
}

.lebanon-map {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.map-pin {
    position: absolute;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.map-pin i {
    color: var(--primary);
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.pin-label {
    background: var(--primary);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 0.5rem;
    display: inline-block;
}

.beirut {
    top: 30%;
    left: 25%;
}

.bekaa {
    top: 50%;
    left: 50%;
}

.north {
    top: 25%;
    left: 20%;
}

.pharmacy-locations {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pharmacy-location {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.pharmacy-location:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.pharmacy-location h3 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
}

.pharmacy-location p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pharmacy-location p i {
    color: var(--primary);
    width: 20px;
}

/* ===== ABOUT SECTION ===== */
.about-content {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.about-text {
    flex: 1;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.founder-signature {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.founder-signature img {
    height: 60px;
    margin-bottom: 0.5rem;
    filter: brightness(0) saturate(100%) invert(42%) sepia(93%) saturate(384%) hue-rotate(87deg) brightness(95%) contrast(87%);
}

.about-image {
    flex: 1;
}

.image-frame {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 100%;
}

.image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    padding: 1rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.certifications {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.certification {
    height: 80px;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.certification:hover {
    filter: grayscale(0);
    opacity: 1;
}

/* ===== CONTACT SECTION ===== */
.contact-container {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-form {
    flex: 1;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 173, 65, 0.2);
}

.contact-info {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

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

.info-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.info-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.info-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ===== FOOTER ===== */
footer {
    background: var(--dark);
    color: var(--white);
    padding: 5rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.links-column h3 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.links-column ul {
    list-style: none;
}

.links-column ul li {
    margin-bottom: 0.8rem;
}

.links-column ul li a {
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
    font-size: 0.95rem;
}

.links-column ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-newsletter h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-newsletter p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.newsletter-form {
    display: flex;
    background: var(--white);
    border-radius: 50px;
    overflow: hidden;
}

.newsletter-form input {
    flex: 1;
    border: none;
    padding: 0.8rem 1.5rem;
    font-family: inherit;
    font-size: 0.95rem;
}

.newsletter-form input:focus {
    outline: none;
}

.newsletter-form button {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 0 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--primary-dark);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 2rem 0;
}

.footer-legal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal p {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.legal-links {
    display: flex;
    gap: 1.5rem;
}

.legal-links a {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.payment-methods {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1rem;
}

.payment-methods i {
    font-size: 1.8rem;
    color: rgba(255,255,255,0.7);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .product-container,
    .clinical-study,
    .about-content,
    .contact-container {
        flex-direction: column;
    }

    .product-image {
        height: 400px;
    }

    .science-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .usage-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 1rem 2rem;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }

    nav.active {
        transform: translateY(0);
    }

    nav ul {
        flex-direction: column;
        gap: 1rem;
    }

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

    .hero {
        min-height: auto;
        padding: 100px 0 80px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero p {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        position: relative;
        right: auto;
        height: auto;
        max-width: 100%;
        margin-top: 2rem;
    }

    .section {
        padding: 4rem 0;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
        margin-top: 2rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1.5rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .product-features {
        grid-template-columns: 1fr;
    }

    .science-cards {
        grid-template-columns: 1fr;
    }

    .footer-legal {
        flex-direction: column;
        text-align: center;
    }

    .legal-links {
        justify-content: center;
    }

    .payment-methods {
        justify-content: center;
    }
}