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

:root {
    /* Color Palette */
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Glass Effect Colors */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --text-muted: #999999;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
    --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.37);
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h1 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-light);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    color: var(--text-light);
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

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

.cta-button {
    padding: 15px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-button.primary {
    background: var(--gradient-secondary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button.secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.glass-effect {
    width: 300px;
    height: 400px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-glass);
    position: relative;
    transform: rotate(-5deg);
}

.glass-effect::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-accent);
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 80px;
    height: 80px;
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 40px;
    height: 40px;
    top: 60%;
    right: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Article Section */
.article-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.blog-article {
    max-width: 800px;
    margin: 0 auto;
    background: var(--text-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.article-header {
    background: var(--gradient-primary);
    color: var(--text-light);
    padding: 3rem 2rem 2rem;
    text-align: center;
}

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

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.article-date,
.article-category {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.article-content {
    padding: 3rem 2rem;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.article-content h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 2.5rem 0 1.5rem;
    position: relative;
}

.article-content h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.article-content a {
    color: var(--highlight-color);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.article-content a:hover {
    border-bottom-color: var(--highlight-color);
}

/* Info Boxes */
.info-box,
.warning-box {
    margin: 2rem 0;
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.info-box {
    background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
    border-left-color: #2196f3;
}

.warning-box {
    background: linear-gradient(135deg, #fff3e0 0%, #fce4ec 100%);
    border-left-color: #ff9800;
}

.info-box h3,
.warning-box h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.info-box ul,
.warning-box ul {
    list-style: none;
    padding-left: 0;
}

.info-box li,
.warning-box li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.info-box li::before,
.warning-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4caf50;
    font-weight: bold;
}

.warning-box li::before {
    content: '⚠';
    color: #ff9800;
}

/* Tint Types Grid */
.tint-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tint-type {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.tint-type:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tint-type h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

/* Checklist */
.checklist {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.checklist-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-left: 4px solid var(--gradient-accent);
    transition: all 0.3s ease;
}

.checklist-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.checklist-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

/* Tips Grid */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tip {
    background: var(--gradient-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.tip:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.tip h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-light);
    border-radius: var(--border-radius);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.benefit:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.benefit h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: var(--primary-color);
    color: var(--text-light);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glass);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    position: relative;
}

.icon-shape {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    position: relative;
}

.window-icon {
    background: var(--gradient-accent);
}

.paint-icon {
    background: var(--gradient-secondary);
}

.ceramic-icon {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.detail-icon {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

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

.service-card p {
    opacity: 0.9;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

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

.about-text h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-features {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
}

.feature-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.feature-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-visual {
    position: relative;
    height: 400px;
}

.visual-element {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    position: relative;
    overflow: hidden;
}

.visual-element::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
}

.visual-element::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    background: var(--gradient-accent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.3;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.5; }
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--primary-color);
    color: var(--text-light);
}

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

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

.contact-item {
    margin-bottom: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item strong {
    color: var(--text-light);
    margin-right: 1rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.15);
}

.submit-btn {
    padding: 1rem 2rem;
    background: var(--gradient-secondary);
    color: var(--text-light);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

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

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links h4,
.footer-services h4 {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.footer-links a,
.footer-services a {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--text-light);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(26, 26, 46, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        backdrop-filter: blur(20px);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

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

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

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

    .hero-visual {
        height: 300px;
    }

    .glass-effect {
        width: 200px;
        height: 250px;
    }

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

    .article-content {
        padding: 2rem 1.5rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-features {
        justify-content: center;
    }

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

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

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

    .cta-button {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

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

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

    .article-content {
        padding: 1.5rem 1rem;
    }

    .article-content p {
        font-size: 1rem;
    }

    .services-grid,
    .tint-types,
    .tips-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .about-features {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

/* Focus States */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--highlight-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .hero,
    .services,
    .about,
    .contact,
    .footer {
        display: none;
    }
    
    .article-section {
        padding: 0;
        background: white;
    }
    
    .blog-article {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}