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

:root {
    /* Color Palette */
    --primary-color: #FF6B35;
    --primary-dark: #E55A2B;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --medium-gray: #E9ECEF;
    --dark-gray: #495057;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    --gradient-secondary: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    --gradient-accent: linear-gradient(135deg, #FFE66D 0%, #FF8A80 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f0f0f0 100%);
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Georgia', serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 4rem 0;
    --border-radius: 12px;
    --border-radius-large: 20px;
    
    /* Shadows */
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-heavy: 0 15px 50px rgba(0, 0, 0, 0.15);
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
}

body.loaded {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 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 var(--transition-medium);
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-light);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0;
}

.tagline {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
    margin-top: -5px;
    display: block;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-medium);
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all var(--transition-medium);
    border-radius: 2px;
}

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

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

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

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

/* Hero Section */
.hero-section {
    background: var(--gradient-hero);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    font-weight: 300;
}

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

/* Button Styles */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 150px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

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

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

/* Ripple Effect */
.btn .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Blog Article Styles */
.blog-article {
    padding: var(--section-padding);
    background: var(--white);
}

.article-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

.article-header {
    text-align: center;
    margin-bottom: 4rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 3rem 0 1.5rem 0;
    position: relative;
    padding-left: 1rem;
}

.article-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 2rem 0 1rem 0;
}

.article-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.article-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    transition: color var(--transition-fast);
}

.article-content a:hover {
    color: var(--primary-dark);
}

.article-content a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.article-content a:hover::after {
    transform: scaleX(1);
}

/* Service Highlights */
.service-highlight {
    background: var(--gradient-card);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    margin: 2rem 0;
    box-shadow: var(--shadow-light);
    border-left: 5px solid var(--primary-color);
}

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

.service-highlight ul {
    list-style: none;
    padding-left: 0;
}

.service-highlight li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.service-highlight li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

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

.benefit-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: all var(--transition-medium);
    border: 1px solid var(--medium-gray);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.benefit-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Criteria Section */
.criteria-section {
    margin: 3rem 0;
}

.criteria-item {
    background: var(--light-gray);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 5px solid var(--secondary-color);
    transition: all var(--transition-medium);
}

.criteria-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-light);
    transform: translateX(10px);
}

.criteria-item h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

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

.issue-card {
    background: linear-gradient(145deg, #fff5f5, #ffffff);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 107, 53, 0.1);
    transition: all var(--transition-medium);
}

.issue-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.issue-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Value Points */
.value-points {
    margin: 2rem 0;
}

.value-point {
    background: var(--white);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--accent-color);
    transition: all var(--transition-medium);
}

.value-point:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-medium);
}

.value-point strong {
    color: var(--primary-color);
}

/* Maintenance Tips */
.maintenance-tips {
    background: var(--gradient-secondary);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    margin: 2rem 0;
    color: var(--white);
}

.maintenance-tips h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.maintenance-tips ul {
    list-style: none;
    padding-left: 0;
}

.maintenance-tips li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.maintenance-tips li::before {
    content: '⚡';
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

/* Article Footer */
.article-footer {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid var(--medium-gray);
}

.cta-section {
    background: var(--gradient-primary);
    padding: 3rem;
    border-radius: var(--border-radius-large);
    text-align: center;
    color: var(--white);
}

.cta-section h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

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

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

.footer-section li {
    padding: 0.3rem 0;
    color: var(--light-gray);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--dark-gray);
    color: var(--text-light);
}

/* Animation Classes */
.animate-in {
    animation: slideInUp 0.6s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        padding: 2rem 0;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-content h2 {
        font-size: 1.5rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .issues-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .article-container {
        padding: 0 1rem;
    }
    
    .hero-content {
        padding: 0 1rem;
    }
    
    .footer-content {
        padding: 0 1rem;
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .article-content {
        font-size: 1rem;
    }
    
    .service-highlight,
    .benefit-card,
    .criteria-item,
    .issue-card,
    .value-point,
    .maintenance-tips {
        padding: 1.5rem;
    }
    
    .cta-section {
        padding: 2rem;
    }
    
    .cta-section h3 {
        font-size: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .hero-section,
    .footer,
    .cta-section {
        display: none;
    }
    
    .main-content {
        margin-top: 0;
    }
    
    .article-content {
        font-size: 12pt;
        line-height: 1.5;
    }
    
    .article-content h2 {
        page-break-after: avoid;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #D2001F;
        --secondary-color: #006B3C;
        --text-dark: #000000;
        --text-light: #333333;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}