/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #f7fafc;
}

/* CSS Variables for Eco-Friendly Color Palette */
:root {
    --primary-green: #38a169;
    --secondary-green: #68d391;
    --dark-green: #2f855a;
    --light-green: #c6f6d5;
    --earth-brown: #8b4513;
    --warm-beige: #f5f5dc;
    --forest-green: #228b22;
    --sage-green: #9caf88;
    --cream: #fefcf3;
    --charcoal: #2d3748;
    --light-gray: #e2e8f0;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--light-gray);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px var(--shadow);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo h1 {
    color: var(--primary-green);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.tagline {
    color: var(--sage-green);
    font-size: 0.85rem;
    font-weight: 400;
}

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

.nav-link {
    text-decoration: none;
    color: var(--charcoal);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-green);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-green);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Content */
.main {
    margin-top: 80px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-green) 0%, var(--cream) 100%);
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="%2338a169" opacity="0.1"/><circle cx="80" cy="40" r="1.5" fill="%2368d391" opacity="0.1"/><circle cx="40" cy="80" r="1" fill="%232f855a" opacity="0.1"/></svg>');
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--dark-green);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--charcoal);
    margin-bottom: 2rem;
    opacity: 0.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-green);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(56, 161, 105, 0.3);
}

.btn-primary:hover {
    background: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 161, 105, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

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

/* Blog Section */
.blog-section {
    padding: 4rem 0;
    background: var(--white);
}

.blog-article {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    overflow: hidden;
}

.article-header {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--white);
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.article-content {
    padding: 3rem 2rem;
    line-height: 1.8;
}

.article-content h2 {
    color: var(--dark-green);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 2.5rem 0 1rem;
    position: relative;
    padding-left: 1rem;
}

.article-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    width: 4px;
    height: 1.5rem;
    background: var(--primary-green);
    border-radius: 2px;
}

.article-content h3 {
    color: var(--primary-green);
    font-size: 1.3rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem;
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--charcoal);
}

.article-content a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.article-content a:hover {
    border-bottom-color: var(--primary-green);
}

/* Use Cases Grid */
.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.use-case {
    background: var(--cream);
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-green);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.use-case.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.use-case:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow);
}

/* Tables */
.towel-types-table,
.recommendations-table {
    margin: 2rem 0;
    overflow-x: auto;
}

.table-wrapper {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    min-width: 600px;
}

th {
    background: var(--primary-green);
    color: var(--white);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--light-gray);
}

tr:hover {
    background: var(--cream);
}

/* Lists */
.factors-list,
.care-tips,
.mistakes-list {
    list-style: none;
    margin: 1.5rem 0;
}

.factors-list li,
.care-tips li,
.mistakes-list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    border-bottom: 1px solid var(--light-gray);
}

.factors-list li::before,
.care-tips li::before {
    content: '🌿';
    position: absolute;
    left: 0;
    top: 0.75rem;
}

.mistakes-list li::before {
    content: '⚠️';
    position: absolute;
    left: 0;
    top: 0.75rem;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px var(--shadow);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.benefit.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.benefit:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-hover);
}

.benefit h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* Section Styles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-green);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-green);
    border-radius: 2px;
}

/* About Section */
.about-section {
    padding: 4rem 0;
    background: var(--cream);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

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

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px var(--shadow);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateX(20px);
}

.feature.animate-in {
    opacity: 1;
    transform: translateX(0);
}

.feature:hover {
    transform: translateX(-5px);
}

.feature h3 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

/* Products Section */
.products-section {
    padding: 4rem 0;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    opacity: 0;
    transform: translateY(20px);
}

.product-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px var(--shadow-hover);
    border-color: var(--primary-green);
}

.product-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.product-card h3 {
    color: var(--dark-green);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.product-card p {
    color: var(--charcoal);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
    background: var(--light-green);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    color: var(--dark-green);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.contact-item {
    margin-bottom: 1rem;
    padding: 0.5rem 0;
    color: var(--charcoal);
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark-green);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1);
}

/* Footer */
.footer {
    background: var(--charcoal);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--secondary-green);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--secondary-green);
}

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

.social-link {
    padding: 0.5rem 1rem;
    background: var(--primary-green);
    border-radius: 25px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--secondary-green);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 5px 15px var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .article-title {
        font-size: 2rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .use-cases {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 15px;
    }

    .article-content {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .article-title {
        font-size: 1.8rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .article-content {
        padding: 1.5rem 1rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

/* Animation Classes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth transitions for all interactive elements */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}