/* Reset y configuraciones base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

/* Scroll margin for sections to account for fixed header */
section[id] {
    scroll-margin-top: 160px;
    /* Header height + padding */
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #F18F01;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    z-index: 10000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-image {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.navigation {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 700;
    font-size: 1.125rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    background-color: #f5f5f5;
    outline: none;
}

.nav-link[aria-current="page"] {
    background-color: #e8f4f8;
    color: #207193;
}

.nav-cta {
    background: #207193;
    color: white !important;
    border-radius: 15px;
    padding: 0.5rem 1.5rem;
}

.nav-cta:hover,
.nav-cta:focus {
    background: #1a5f7a;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Content */
.main-content {
    margin-top: 140px;
}

/* Section Shared Styles */
.section-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: flex;
    align-items: center;
    gap: 4rem;
}

.section-header {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.section-line {
    width: 83px;
    height: 5px;
    background: #F18F01;
    border-radius: 2.5px;
}

/* Hero Section */
.hero-section {
    background: #207193;
    min-height: 692px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    min-width: 188px;
    height: 59px;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover:before {
    left: 100%;
}

.btn-primary {
    background: #2E86AB;
    color: white;
}

.btn-primary:hover,
.btn-primary:focus {
    background: #245a7a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(46, 134, 171, 0.3);
}

.btn-secondary {
    background: #F18F01;
    color: white;
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: #d67801;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(241, 143, 1, 0.3);
}

/* Air Quality Widget */
.air-quality-widget {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid #e1e5e9;
}

.widget-title {
    font-size: 1.25rem;
    font-weight: 400;
    color: #333;
    margin-bottom: 1rem;
}

.quality-indicator {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.quality-text {
    font-size: 0.875rem;
}

.quality-good {
    color: #4CAF50;
}

.quality-moderate {
    color: #FBC02D;
}

.quality-poor {
    color: #F44336;
}

.quality-good-dot {
    width: 21px;
    height: 21px;
    background: #00CF6F;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 207, 111, 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(0, 207, 111, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 207, 111, 0);
    }
}

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

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F0F3F7;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    transition: background-color 0.3s ease;
}

.metric-item:hover {
    background: #e8ecf0;
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 500;
}

.metric-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: #207193;
}

/* About Section */
.about-section {
    background: white;
    min-height: 692px;
}

.about-section .section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.company-description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 1rem;
}

.team-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 500px;
}

.team-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease;
}

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

.member-photo {
    width: 132px;
    height: 132px;
    border-radius: 50%;
    background: #f5f5f5;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid #e1e5e9;
    transition: border-color 0.3s ease;
}

.team-member:hover .member-photo {
    border-color: #207193;
}

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

.member-name {
    font-size: 1.125rem;
    color: #333;
    text-align: center;
    font-weight: 600;
}

/* About Video Section */
.about-video-wrapper {
    width: 100%;
    padding: 0 2rem 4rem;
    display: flex;
    justify-content: center;
}

.video-content {
    width: 100%;
    max-width: 1000px;
    text-align: center;
}

.video-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 2rem;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Product Section */
.product-section {
    background: #F7F9FC;
    min-height: 692px;
}

.product-section .section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.product-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.product-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 1.5rem;
}

.product-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-features li {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
    transition: transform 0.2s ease;
}

.product-features li:hover {
    transform: translateX(5px);
}

.product-features li::before {
    content: "✓";
    color: #4CAF50;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2rem;
}

.product-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-background {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 547px;
    height: 463px;
    background: rgba(54, 124, 255, 0.1);
    border-radius: 50%;
    z-index: 1;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

.product-image {
    position: relative;
    z-index: 2;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

/* Pricing Section */
.pricing-section {
    background: white;
    min-height: 692px;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
}

.pricing-card {
    background: white;
    border: 1px solid #e1e5e9;
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #207193;
}

.pricing-card.featured {
    border: 2px solid #207193;
    box-shadow: 0 10px 30px rgba(32, 113, 147, 0.15);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #207193;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.plan-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
    text-align: center;
}

.plan-price {
    display: flex;
    justify-content: center;
    align-items: baseline;
    margin-bottom: 1rem;
    color: #333;
}

.plan-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.plan-price .period {
    font-size: 1rem;
    color: #666;
    margin-left: 4px;
}

.plan-description {
    text-align: center;
    color: #666;
    margin-bottom: 2rem;
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.plan-features li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
}

.plan-features li::before {
    content: "✓";
    color: #4CAF50;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.btn-block {
    width: 100%;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    position: relative;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    padding: 0.5rem;
    line-height: 1;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
}

.modal-plan-info {
    background: #f7f9fc;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.modal-plan-info p {
    margin: 0.5rem 0;
    color: #555;
}

.modal-plan-info strong {
    color: #207193;
}

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

.form-row label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

#card-element {
    padding: 1rem;
    border: 1px solid #e1e5e9;
    border-radius: 8px;
    background: white;
}

#card-errors {
    color: #fa755a;
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

.secure-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    color: #666;
    font-size: 0.875rem;
}

/* Success Modal Styles */
.success-icon-container {
    width: 80px;
    height: 80px;
    background: #e6f4ea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.success-icon {
    width: 40px;
    height: 40px;
    color: #1e8e3e;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    color: white;
    transform: translateY(-2px);
}

/* FAQ Section */
.faq-section {
    background: white;
    min-height: 692px;
}

.faq-section .section-content {
    flex-direction: column;
    align-items: stretch;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 1230px;
    width: 100%;
}

.faq-item {
    background: white;
    border: 1px solid #DDE1E6;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #207193;
    box-shadow: 0 2px 8px rgba(32, 113, 147, 0.1);
}

.faq-toggle {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.3s ease;
}

.faq-toggle:hover,
.faq-toggle:focus {
    background-color: #f8f9fa;
    outline: none;
}

.faq-question {
    font-family: 'Roboto', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: #21272A;
    line-height: 1.4;
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    margin-left: 1rem;
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    border-top: 1px solid #f0f0f0;
}

.faq-answer p {
    font-size: 1rem;
    line-height: 1.6;
    color: #555;
    margin: 0;
}

/* Contact Section */
.contact-section {
    background: #F7F9FC;
    min-height: 692px;
}

.contact-section .section-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.contact-subtitle {
    font-size: 1.25rem;
    color: #333;
    margin-bottom: 3rem;
    max-width: 600px;
}

.contact-form {
    width: 100%;
    max-width: 449px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-label {
    font-size: 1.125rem;
    font-weight: 700;
    color: #333;
}

.form-input,
.form-textarea {
    padding: 0.75rem 1rem;
    border: 2px solid #1B1B1B;
    border-radius: 8px;
    font-size: 1.125rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
}

.form-textarea {
    min-height: 98px;
    resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #207193;
    box-shadow: 0 0 0 3px rgba(32, 113, 147, 0.1);
}

.form-input.error,
.form-textarea.error {
    border-color: #dc3545;
}

.error-message {
    color: #dc3545;
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.btn-submit {
    margin-top: 1rem;
    background: #F18F01;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.4px;
}

.btn-submit:hover,
.btn-submit:focus {
    background: #d67801;
}

/* Footer */
.footer {
    background: #207193;
    padding: 2rem 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-text p {
    color: white;
    font-size: 1rem;
    font-weight: 400;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover,
.social-link:focus {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    outline: none;
}

.social-link svg {
    width: 24px;
    height: 24px;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: #F18F01;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(241, 143, 1, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top:hover,
.back-to-top:focus {
    background: #d67801;
    transform: translateY(-2px);
    outline: none;
}

/* Loading states and animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-content>* {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */

/* Large screens */
@media (min-width: 1400px) {
    .section-content {
        padding: 5rem 2rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .section-title {
        font-size: 3rem;
    }
}

/* Tablet */
@media (max-width: 1024px) {
    .header-content {
        padding: 0 1rem;
    }

    .logo-image {
        width: 80px;
        height: 80px;
    }

    .nav-list {
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 1rem;
        padding: 0.5rem 0.75rem;
    }

    .section-content {
        padding: 3rem 1rem;
        gap: 3rem;
    }

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

    .hero-content {
        padding: 3rem 1rem;
        gap: 3rem;
    }

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

    .hero-description {
        font-size: 1.125rem;
    }

    .team-members {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .product-background {
        width: 400px;
        height: 350px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .header {
        padding: 0.5rem 0;
    }

    .header-content {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .logo-image {
        width: 60px;
        height: 60px;
    }

    .mobile-menu-btn {
        display: flex;
        order: 3;
    }

    .navigation {
        order: 4;
        width: 100%;
        display: none;
    }

    .navigation.nav-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem 0;
        background: white;
        border-top: 1px solid #e1e5e9;
    }

    .main-content {
        margin-top: 100px;
    }

    .section-content {
        padding: 2rem 1rem;
        gap: 2rem;
        flex-direction: column;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
        gap: 2rem;
        text-align: center;
    }

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

    .hero-description {
        font-size: 1rem;
    }

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

    .btn {
        min-width: 150px;
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .air-quality-widget {
        padding: 1.5rem;
    }

    .about-section .section-content,
    .product-section .section-content {
        grid-template-columns: 1fr;
    }

    .team-members {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        justify-items: center;
    }

    .member-photo {
        width: 100px;
        height: 100px;
    }

    .product-visual {
        order: -1;
    }

    .product-background {
        width: 300px;
        height: 250px;
        top: -10px;
        left: -10px;
    }

    .contact-form {
        max-width: 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        min-width: 120px;
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .air-quality-widget {
        padding: 1rem;
    }

    .product-background {
        width: 250px;
        height: 200px;
    }

    .form-input,
    .form-textarea {
        font-size: 1rem;
    }

    .team-members {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .faq-toggle {
        padding: 1rem;
    }

    .faq-question {
        font-size: 1.125rem;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .product-background {
        animation: none;
    }

    .quality-good-dot {
        animation: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }

    .form-input,
    .form-textarea {
        border-width: 3px;
    }

    .faq-item {
        border-width: 2px;
    }

    .member-photo {
        border-width: 4px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #f0f0f0;
        --card-bg: #2a2a2a;
    }

    /* Apply only if user hasn't set a preference */
    .auto-dark body {
        background: var(--bg-color);
        color: var(--text-color);
    }

    .auto-dark .air-quality-widget {
        background: var(--card-bg);
        color: var(--text-color);
    }
}

/* Focus styles for accessibility */
.nav-link:focus,
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.faq-toggle:focus,
.social-link:focus,
.back-to-top:focus {
    outline: 3px solid #F18F01;
    outline-offset: 2px;
}

/* Print styles */
@media print {

    .header,
    .footer,
    .hero-buttons,
    .contact-form,
    .back-to-top,
    .mobile-menu-btn {
        display: none;
    }

    .main-content {
        margin-top: 0;
    }

    .section-content {
        padding: 1rem 0;
        break-inside: avoid;
    }

    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }

    .hero-section {
        background: white !important;
        color: black !important;
    }

    .hero-text {
        color: black !important;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }

    .product-background {
        display: none;
    }
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-image {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.navigation {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 700;
    font-size: 1.125rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background-color: #f5f5f5;
}

.nav-cta {
    background: #207193;
    color: white !important;
    border-radius: 15px;
    padding: 0.5rem 1.5rem;
}

.nav-cta:hover {
    background: #1a5f7a;
}

/* Main Content */
.main-content {
    margin-top: 140px;
}

/* Section Shared Styles */
.section-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.section-header {
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.section-line {
    width: 83px;
    height: 5px;
    background: #F18F01;
    border-radius: 2.5px;
}

/* Hero Section */
.hero-section {
    background: #207193;
    min-height: 692px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    min-width: 188px;
    height: 59px;
}

.btn-primary {
    background: #2E86AB;
    color: white;
}

.btn-primary:hover {
    background: #245a7a;
}

.btn-secondary {
    background: #F18F01;
    color: white;
}

.btn-secondary:hover {
    background: #d67801;
}

/* Air Quality Widget */
.air-quality-widget {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.widget-title {
    font-size: 1.25rem;
    font-weight: 400;
    color: #333;
    margin-bottom: 1rem;
}

.quality-indicator {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.quality-text {
    font-size: 0.875rem;
}

.quality-good {
    color: #4CAF50;
}

.quality-moderate {
    color: #FBC02D;
}

.quality-poor {
    color: #F44336;
}

.quality-good-dot {
    width: 21px;
    height: 21px;
    background: #00CF6F;
    border-radius: 50%;
}

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

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F0F3F7;
    padding: 0.75rem 1rem;
    border-radius: 10px;
}

.metric-label {
    font-size: 0.875rem;
    font-weight: 400;
}

.metric-value {
    font-size: 0.875rem;
    font-weight: 400;
}

/* About Section */
.about-section {
    background: white;
    min-height: 692px;
}

.about-section .section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.company-description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
}

.team-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 500px;
}

.team-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.member-photo {
    width: 132px;
    height: 132px;
    border-radius: 50%;
    background: #f5f5f5;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.member-name {
    font-size: 1.125rem;
    color: #333;
    text-align: center;
}

/* Product Section */
.product-section {
    background: #F7F9FC;
    min-height: 692px;
}

.product-section .section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.product-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.product-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 1.5rem;
}

.product-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-features li {
    font-size: 1.125rem;
    line-height: 1.6;
    color: #333;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1rem;
}

.product-features li::before {
    content: "•";
    color: #F18F01;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.product-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-background {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 547px;
    height: 463px;
    background: rgba(54, 124, 255, 0.1);
    border-radius: 50%;
    z-index: 1;
}

.product-image {
    position: relative;
    z-index: 2;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

/* FAQ Section */
.faq-section {
    background: white;
    min-height: 692px;
}

.faq-section .section-content {
    flex-direction: column;
    align-items: stretch;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 1230px;
    width: 100%;
}

.faq-item {
    background: white;
    border: 1px solid #DDE1E6;
    border-radius: 8px;
}

.faq-toggle {
    width: 100%;
    padding: 1rem;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
}

.faq-question {
    font-family: 'Roboto', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: #21272A;
    line-height: 1.4;
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-toggle:hover .faq-icon {
    transform: rotate(45deg);
}

/* Contact Section */
.contact-section {
    background: #F7F9FC;
    min-height: 692px;
}

.contact-section .section-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.contact-subtitle {
    font-size: 1.25rem;
    color: #333;
    margin-bottom: 3rem;
    max-width: 600px;
}

.contact-form {
    width: 100%;
    max-width: 449px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-label {
    font-size: 1.125rem;
    font-weight: 700;
    color: #333;
}

.form-input,
.form-textarea {
    padding: 0.75rem 1rem;
    border: 2px solid #1B1B1B;
    border-radius: 8px;
    font-size: 1.125rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-textarea {
    min-height: 98px;
    resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #207193;
}

.btn-submit {
    margin-top: 1rem;
    background: #F18F01;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.4px;
}

.btn-submit:hover {
    background: #d67801;
}

/* Footer */
.footer {
    background: #207193;
    padding: 2rem 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-text p {
    color: white;
    font-size: 1rem;
    font-weight: 400;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: transparent;
    transition: background-color 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

/* Responsive Design */

/* Tablet */
@media (max-width: 1024px) {
    .header-content {
        padding: 0 1rem;
    }

    .logo-image {
        width: 80px;
        height: 80px;
    }

    .nav-list {
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 1rem;
        padding: 0.5rem 0.75rem;
    }

    .section-content {
        padding: 3rem 1rem;
        gap: 3rem;
    }

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

    .hero-content {
        padding: 3rem 1rem;
        gap: 3rem;
    }

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

    .hero-description {
        font-size: 1.125rem;
    }

    .team-members {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .product-background {
        width: 400px;
        height: 350px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .header {
        padding: 0.5rem 0;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .logo-image {
        width: 60px;
        height: 60px;
    }

    .navigation {
        justify-content: center;
    }

    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.25rem;
    }

    .nav-link {
        font-size: 0.875rem;
        padding: 0.25rem 0.5rem;
    }

    .main-content {
        margin-top: 120px;
    }

    .section-content {
        padding: 2rem 1rem;
        gap: 2rem;
        flex-direction: column;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
        gap: 2rem;
        text-align: center;
    }

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

    .hero-description {
        font-size: 1rem;
    }

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

    .btn {
        min-width: 150px;
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .air-quality-widget {
        padding: 1.5rem;
    }

    .about-section .section-content,
    .product-section .section-content {
        grid-template-columns: 1fr;
    }

    .team-members {
        grid-template-columns: 1fr;
        gap: 1rem;
        justify-items: center;
    }

    .member-photo {
        width: 100px;
        height: 100px;
    }

    .product-visual {
        order: -1;
    }

    .product-background {
        width: 300px;
        height: 250px;
        top: -10px;
        left: -10px;
    }

    .contact-form {
        max-width: 100%;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        min-width: 120px;
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .air-quality-widget {
        padding: 1rem;
    }

    .product-background {
        width: 250px;
        height: 200px;
    }

    .form-input,
    .form-textarea {
        font-size: 1rem;
    }

    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }

    .form-input,
    .form-textarea {
        border-width: 3px;
    }

    .faq-item {
        border-width: 2px;
    }
}

/* Focus styles for accessibility */
.nav-link:focus,
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.faq-toggle:focus,
.social-link:focus {
    outline: 3px solid #F18F01;
    outline-offset: 2px;
}

/* Print styles */
@media print {

    .header,
    .footer,
    .hero-buttons,
    .contact-form {
        display: none;
    }

    .main-content {
        margin-top: 0;
    }

    .section-content {
        padding: 1rem 0;
    }

    * {
        background: white !important;
        color: black !important;
    }
}