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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #374151;
    background-color: #ffffff;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-nav {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: #0f766e;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: #374151;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #0f766e;
}

.btn-primary {
    background-color: #0f766e;
    color: #ffffff;
    padding: 0.5rem 1.5rem;
    border-radius: 9999px;
    transition: background-color 0.2s, box-shadow 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    display: inline-block;
}

.btn-primary:hover {
    background-color: #115e59;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-outline {
    background-color: transparent;
    color: #0f766e;
    border: 2px solid #0f766e;
    padding: 0.875rem 1.875rem;
    border-radius: 9999px;
    font-size: 1.125rem;
    font-weight: 600;
    display: inline-block;
    transition: background-color 0.2s;
}

.btn-outline:hover {
    background-color: #ccfbf1;
}

.btn-full {
    width: 100%;
}

/* Containers */
.container {
    max-width: 896px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-wide {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #f9fafb 0%, #ccfbf1 100%);
    padding: 5rem 0;
}

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

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #111827;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    color: #4b5563;
    line-height: 1.75;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hero-image img {
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    width: 100%;
    height: 500px;
    object-fit: cover;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.25rem;
    color: #4b5563;
}

/* Products Section */
.products-section {
    padding: 5rem 0;
    background-color: #ffffff;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.product-card {
    background-color: #f9fafb;
    border-radius: 1rem;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.product-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 100%;
    height: 256px;
    object-fit: cover;
}

.product-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
}

.product-description {
    color: #4b5563;
}

/* Tips Section */
.tips-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #ccfbf1 0%, #f9fafb 100%);
}

.tips-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.tip-card {
    background-color: #ffffff;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s;
}

.tip-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.tip-icon {
    width: 64px;
    height: 64px;
    background-color: #ccfbf1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.tip-icon .icon {
    width: 32px;
    height: 32px;
    color: #0f766e;
}

.tip-image {
    width: 100%;
    height: 192px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

.tip-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1rem;
}

.tip-description {
    color: #4b5563;
    line-height: 1.75;
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
    background-color: #ffffff;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background-color: #f9fafb;
    border-radius: 1rem;
    padding: 1.5rem;
    transition: box-shadow 0.3s;
}

.faq-item:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.faq-question {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: #0f766e;
    font-weight: 700;
    transition: transform 0.3s;
}

.faq-item[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    margin-top: 1rem;
    color: #4b5563;
    line-height: 1.75;
}

/* Contact Section */
.contact-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f9fafb 0%, #ccfbf1 100%);
}

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

.contact-form-wrapper {
    background-color: #ffffff;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.contact-form-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #0f766e;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info-wrapper {
    background-color: #ffffff;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.contact-info-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1.5rem;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    width: 24px;
    height: 24px;
    color: #0f766e;
    flex-shrink: 0;
}

.contact-info-label {
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.25rem;
}

.contact-info-value {
    color: #4b5563;
}

/* Footer */
.footer {
    background-color: #111827;
    color: #ffffff;
    padding: 3rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-brand-icon {
    width: 32px;
    height: 32px;
    color: #14b8a6;
}

.footer-brand-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-description {
    color: #9ca3af;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-link {
    color: #9ca3af;
    transition: color 0.2s;
}

.footer-link:hover {
    color: #14b8a6;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

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

    .tips-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .nav-links {
        display: flex;
    }
}

@media (min-width: 1024px) {
    .hero-section {
        padding: 8rem 0;
    }

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

    .hero-title {
        font-size: 3.75rem;
    }

    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 767px) {
    .nav-links {
        display: none;
    }

    .header-nav {
        flex-wrap: wrap;
    }

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

    .section-title {
        font-size: 1.875rem;
    }
}