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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hidden {
    display: none !important;
}

/* Utility Classes */
.text-blue {
    color: #2563eb;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 0.5rem;
}

.btn-primary {
    background-color: #2563eb;
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-secondary {
    border: 2px solid #2563eb;
    color: #2563eb;
    background-color: transparent;
}

.btn-secondary:hover {
    background-color: #eff6ff;
}

.btn-white {
    background-color: white;
    color: #2563eb;
}

.btn-white:hover {
    background-color: #f9fafb;
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
}

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

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #333;
}

.logo .icon {
    width: 2rem;
    height: 2rem;
    color: #2563eb;
}

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

.nav-desktop {
    display: none;
    gap: 2rem;
}

.nav-link {
    padding: 0.5rem 0.75rem;
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.2s ease;
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: #2563eb;
}

.nav-link.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border: none;
    background: none;
    cursor: pointer;
    color: #374151;
}

.mobile-menu-btn:hover {
    color: #2563eb;
    background-color: #f3f4f6;
    border-radius: 0.375rem;
}

.menu-icon, .close-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.mobile-nav {
    padding: 0.5rem;
    background-color: white;
    border-top: 1px solid #e5e7eb;
}

.mobile-nav-link {
    display: block;
    padding: 0.5rem 0.75rem;
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: all 0.2s ease;
    border-radius: 0.375rem;
}

.mobile-nav-link:hover {
    color: #2563eb;
    background-color: #f3f4f6;
}

.mobile-nav-link.active {
    color: #2563eb;
    background-color: #eff6ff;
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: none;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #ecfeff 100%);
    padding: 5rem 0;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    color: #6b7280;
    margin-bottom: 2rem;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-circle {
    width: 24rem;
    height: 24rem;
    background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-icon {
    width: 8rem;
    height: 8rem;
    color: white;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: 3.75rem;
    }
    
    .hero-buttons {
        flex-direction: row;
    }
}

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

/* Page Hero */
.page-hero {
    background: linear-gradient(90deg, #2563eb 0%, #06b6d4 100%);
    color: white;
    padding: 4rem 0;
}

.page-hero-content {
    text-align: center;
}

.page-hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-hero-description {
    font-size: 1.25rem;
    color: #bfdbfe;
    max-width: 48rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .page-hero-title {
        font-size: 3.75rem;
    }
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

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

.section-description {
    font-size: 1.25rem;
    color: #6b7280;
    max-width: 48rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

/* Features Section */
.features {
    padding: 4rem 0;
    background-color: white;
}

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

.feature-card {
    text-align: center;
    padding: 1.5rem;
    border-radius: 0.5rem;
    transition: box-shadow 0.2s ease;
}

.feature-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon.yellow {
    color: #eab308;
}

.feature-icon.green {
    color: #22c55e;
}

.feature-icon.blue {
    color: #3b82f6;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.feature-description {
    color: #6b7280;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Testimonials Section */
.testimonials {
    padding: 4rem 0;
    background-color: #f9fafb;
}

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

.testimonial-card {
    background-color: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stars {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.star {
    width: 1.25rem;
    height: 1.25rem;
    color: #d1d5db;
}

.star.filled {
    color: #fbbf24;
    fill: currentColor;
}

.testimonial-text {
    color: #6b7280;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.author-name {
    font-weight: 600;
    color: #111827;
}

.author-role {
    font-size: 0.875rem;
    color: #6b7280;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* CTA Section */
.cta {
    padding: 4rem 0;
    background-color: #2563eb;
}

.cta-content {
    text-align: center;
}

.cta-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.25rem;
    color: #bfdbfe;
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .cta-title {
        font-size: 2.5rem;
    }
}

/* Products Section */
.products-section {
    padding: 4rem 0;
}

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

.product-card {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

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

.product-image {
    position: relative;
}

.product-image img {
    width: 500px;
    height:500px;
    object-fit: cover;
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
}

.product-badge.bestseller {
    background-color: #2563eb;
}

.product-badge.popular {
    background-color: #059669;
}

.product-badge.sports {
    background-color: #dc2626;
}

.product-badge.compact {
    background-color: #7c3aed;
}

.product-content {
    padding: 1.5rem;
}

.product-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.product-rating {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.rating-text {
    margin-left: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.product-features {
    margin-bottom: 1.5rem;
}

.features-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.75rem;
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-icon {
    width: 1rem;
    height: 1rem;
}

.feature-icon.yellow { color: #eab308; }
.feature-icon.blue { color: #3b82f6; }
.feature-icon.cyan { color: #06b6d4; }
.feature-icon.gray { color: #6b7280; }
.feature-icon.green { color: #22c55e; }
.feature-icon.orange { color: #f97316; }
.feature-icon.red { color: #ef4444; }
.feature-icon.purple { color: #8b5cf6; }
.feature-icon.teal { color: #14b8a6; }
.feature-icon.brown { color: #a3a3a3; }

.feature-item span {
    font-size: 0.875rem;
    color: #6b7280;
}

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

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
}

.original-price {
    font-size: 1.125rem;
    color: #6b7280;
    text-decoration: line-through;
    margin-left: 0.5rem;
}

.product-btn {
    width: 100%;
}

@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Why Choose Section */
.why-choose {
    padding: 4rem 0;
    background-color: white;
}

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

.benefit-card {
    text-align: center;
}

.benefit-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.benefit-icon.blue {
    background-color: #dbeafe;
    color: #2563eb;
}

.benefit-icon.green {
    background-color: #dcfce7;
    color: #16a34a;
}

.benefit-icon.yellow {
    background-color: #fef3c7;
    color: #d97706;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.benefit-description {
    color: #6b7280;
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Features Page Styles */
.core-tech {
    padding: 4rem 0;
    background-color: white;
}

.tech-features {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

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

.tech-feature.reverse {
    direction: rtl;
}

.tech-feature.reverse .tech-content {
    direction: ltr;
}

.tech-feature.reverse .tech-visual {
    direction: ltr;
}

.tech-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.tech-icon {
    width: 3rem;
    height: 3rem;
    margin-right: 1rem;
}

.tech-icon.yellow { color: #eab308; }
.tech-icon.green { color: #22c55e; }
.tech-icon.blue { color: #3b82f6; }

.tech-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
}

.tech-description {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.tech-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tech-details li {
    display: flex;
    align-items: center;
}

.tech-details li::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: #3b82f6;
    border-radius: 50%;
    margin-right: 0.75rem;
    flex-shrink: 0;
}

.tech-visual {
    display: flex;
    justify-content: center;
}

.visual-placeholder {
    background: linear-gradient(135deg, #dbeafe 0%, #ecfeff 100%);
    border-radius: 0.5rem;
    padding: 2rem;
    height: 16rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.visual-icon {
    width: 3rem;
    height: 3rem;
    color: #3b82f6;
    margin-bottom: 1rem;
}

.visual-text {
    font-size: 0.875rem;
    color: #6b7280;
}

@media (min-width: 1024px) {
    .tech-feature {
        grid-template-columns: 1fr 1fr;
    }
}

/* Technical Specifications */
.tech-specs {
    padding: 4rem 0;
    background-color: #f9fafb;
}

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

.spec-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s ease;
}

.spec-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.spec-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.spec-icon {
    width: 2rem;
    height: 2rem;
    margin-right: 0.75rem;
}

.spec-icon.green { color: #16a34a; }
.spec-icon.red { color: #dc2626; }
.spec-icon.blue { color: #2563eb; }
.spec-icon.purple { color: #7c3aed; }

.spec-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
}

.spec-description {
    color: #6b7280;
}

@media (min-width: 768px) {
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .specs-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* How It Works */
.how-it-works {
    padding: 4rem 0;
    background-color: white;
}

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

.step-card {
    text-align: center;
}

.step-number {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.step-number.blue {
    background-color: #dbeafe;
    color: #2563eb;
}

.step-number.yellow {
    background-color: #fef3c7;
    color: #d97706;
}

.step-number.green {
    background-color: #dcfce7;
    color: #16a34a;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.step-description {
    color: #6b7280;
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Certifications */
.certifications {
    padding: 4rem 0;
    background-color: #f9fafb;
}

.cert-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.cert-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.cert-icon {
    width: 3rem;
    height: 3rem;
    background-color: #dbeafe;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: #2563eb;
}

.cert-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.cert-description {
    font-size: 0.875rem;
    color: #6b7280;
}

@media (min-width: 768px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .cert-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Contact Page Styles */
.contact-info-section {
    padding: 4rem 0;
    background-color: white;
}

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

.contact-info-card {
    text-align: center;
    padding: 1.5rem;
    border-radius: 0.5rem;
    transition: box-shadow 0.2s ease;
}

.contact-info-card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.contact-info-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.contact-info-icon.blue {
    background-color: #dbeafe;
    color: #2563eb;
}

.contact-info-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.contact-info-main {
    font-weight: 500;
    color: #374151;
}

.contact-info-sub {
    font-size: 0.875rem;
    color: #6b7280;
}

@media (min-width: 768px) {
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .contact-info-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Contact Form Section */
.contact-form-section {
    padding: 4rem 0;
    background-color: #f9fafb;
}

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

.contact-form-card {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 2rem;
}

.form-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.form-header-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: #2563eb;
    margin-right: 0.75rem;
}

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

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

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

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

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    resize: vertical;
}

.form-submit {
    width: 100%;
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .contact-form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* FAQ Section */
.faq-section {
    display: flex;
    flex-direction: column;
}

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

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.faq-item {
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.faq-question {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.75rem;
}

.faq-answer {
    color: #6b7280;
}

.urgent-help {
    background-color: #eff6ff;
    border-radius: 0.5rem;
    padding: 1.5rem;
}

.urgent-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 0.5rem;
}

.urgent-description {
    color: #6b7280;
    margin-bottom: 1rem;
}

.urgent-btn {
    display: inline-flex;
}

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

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

.footer-brand {
    grid-column: span 1;
}

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

.footer-icon {
    width: 2rem;
    height: 2rem;
    color: #60a5fa;
}

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

.footer-description {
    color: #9ca3af;
    font-size: 0.875rem;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: white;
}

.footer-products ul {
    color: #9ca3af;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-icon {
    width: 1rem;
    height: 1rem;
    color: #9ca3af;
}

.contact-item span {
    font-size: 0.875rem;
    color: #9ca3af;
}

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

.footer-copyright {
    color: #9ca3af;
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .page-hero-title {
        font-size: 2.25rem;
    }
}