/* ============================================
   Line Beacon Service - Main Stylesheet
   ============================================ */

:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --secondary-color: #f0f4ff;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --success-color: #4caf50;
    --error-color: #f44336;
    --spacing-unit: 1rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

/* ============================================
   Navigation
   ============================================ */

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

.navbar-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.navbar-menu a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-menu a:hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .navbar-menu {
        flex-direction: column;
        gap: 1rem;
        display: none;
    }
    
    .navbar-menu.active {
        display: flex;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e8ff 100%);
    padding: 4rem var(--spacing-unit);
}

.hero .container {
    display: flex;
    flex-direction: row;
    gap: 3rem;
    align-items: center;
    justify-content: space-between;
}

.hero .container > div {
    flex: 1;
    min-width: 0;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.2;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-primary:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    opacity: 0.6;
}

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

.btn-secondary:hover {
    background-color: var(--secondary-color);
}

.btn-block {
    width: 100%;
}

/* ============================================
   Services Section
   ============================================ */

.services {
    padding: 4rem var(--spacing-unit);
    background-color: #ffffff;
}

.services h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

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

.service-card {
    padding: 2rem;
    border-radius: 12px;
    background-color: #f9f9f9;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   Products/Carousel Section
   ============================================ */

.products {
    padding: 4rem var(--spacing-unit);
    background-color: #f5f5f5;
}

.products h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.products-scroll-container {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    scroll-behavior: smooth;
}

.products-scroll-container::-webkit-scrollbar {
    height: 8px;
}

.products-scroll-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.products-scroll-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

.products-scroll-container::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.product-card-item {
    flex: 0 0 calc(25% - 1.125rem);
    min-width: 250px;
}

.product-card {
    background-color: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.product-image-wrapper {
    width: 100%;
    height: 500px;
    overflow: hidden;
    background-color: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 2rem;
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.product-info .price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-info .status {
    color: var(--error-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.product-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.product-actions .btn {
    flex: 1;
}

@media (max-width: 768px) {
    .product-card-item {
        flex: 0 0 calc(50% - 0.75rem);
        min-width: 200px;
    }
}

/* ============================================
   Case Studies Section
   ============================================ */

.case-studies {
    padding: 4rem var(--spacing-unit);
    background-color: #ffffff;
}

.case-studies h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.case-study-card {
    padding: 2rem;
    border-radius: 12px;
    background-color: #f9f9f9;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.case-study-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.case-study-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.case-study-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.case-study-card .result {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing {
    padding: 4rem var(--spacing-unit);
    background-color: #f5f5f5;
}

.pricing h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

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

.pricing-card {
    padding: 2rem;
    border-radius: 12px;
    background-color: #ffffff;
    border: 2px solid var(--border-color);
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card.highlighted {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.2);
}

.pricing-card .badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.pricing-card .period {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.pricing-card .features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-card .features li {
    padding: 0.75rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

.pricing-card .features li:last-child {
    border-bottom: none;
}

.pricing-card .features i {
    color: var(--success-color);
    margin-right: 0.5rem;
}

.pricing-card .btn {
    width: 100%;
}

@media (max-width: 768px) {
    .pricing-card.highlighted {
        transform: scale(1);
    }
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: 4rem var(--spacing-unit);
    background-color: #ffffff;
}

.contact h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info {
    padding: 2rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.info-item p {
    color: var(--text-light);
    margin: 0;
}

.contact-form {
    background-color: #f9f9f9;
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

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

@media (max-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: #e8f5e9;
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.alert-error {
    background-color: #ffebee;
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 3rem var(--spacing-unit) 1rem;
}

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

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #cccccc;
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ffffff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333333;
    color: #999999;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .navbar-brand h1 {
        font-size: 1.25rem;
    }
    
    .navbar-menu {
        gap: 1rem;
    }
    
    .hero {
        padding: 2rem var(--spacing-unit);
    }
    
    .hero-text h1 {
        font-size: 1.75rem;
    }
    
    .services h2,
    .products h2,
    .case-studies h2,
    .pricing h2,
    .contact h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .navbar-menu {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .hero-text h1 {
        font-size: 1.5rem;
    }
    
    .hero-text p {
        font-size: 0.95rem;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

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

.mt-1 { margin-top: var(--spacing-unit); }
.mt-2 { margin-top: calc(var(--spacing-unit) * 2); }
.mt-3 { margin-top: calc(var(--spacing-unit) * 3); }

.mb-1 { margin-bottom: var(--spacing-unit); }
.mb-2 { margin-bottom: calc(var(--spacing-unit) * 2); }
.mb-3 { margin-bottom: calc(var(--spacing-unit) * 3); }

.hidden {
    display: none;
}