body {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Vazirmatn', -webkit-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    color: #f8fafc;
    overflow-x: hidden;
    direction: rtl;
}

* {
    box-sizing: border-box;
}

.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle:nth-child(2n) {
    background: rgba(16, 185, 129, 0.3);
    animation-delay: -2s;
    animation-duration: 8s;
}

.particle:nth-child(3n) {
    background: rgba(139, 92, 246, 0.3);
    animation-delay: -4s;
    animation-duration: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-100px) rotate(180deg);
        opacity: 0.8;
    }
}

header {
    position: relative;
    z-index: 10;
    padding: 1rem 2rem;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #3b82f6;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #3b82f6;
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    transition: width 0.3s ease;
}

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

.whatsapp-link {
    background: linear-gradient(135deg, #25d366, #128c7e);
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-link:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.hero {
    position: relative;
    z-index: 5;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #3b82f6, #10b981, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-button::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 ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

.services {
    position: relative;
    z-index: 5;
    padding: 5rem 2rem;
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #f8fafc;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: rgba(51, 65, 85, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #10b981, #8b5cf6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    border-color: rgba(59, 130, 246, 0.4);
}

.chemical-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #1e293b, #334155);
    border-radius: 15px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

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

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f8fafc;
}

.service-card p {
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.analysis-button {
    width: 100%;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.analysis-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.analysis-button.active {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.analysis-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.2s ease-out;
    background: rgba(15, 23, 42, 0.8);
    margin-top: 1rem;
    border-radius: 12px;
    opacity: 0;
}

.analysis-panel.open {
    max-height: 300px;
    opacity: 1;
    padding: 1.5rem;
}

.analysis-content h4 {
    color: #3b82f6;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.analysis-list li {
    color: #cbd5e1;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.analysis-list li:last-child {
    border-bottom: none;
}

.analysis-value {
    color: #10b981;
    font-weight: 600;
}

.contact {
    position: relative;
    z-index: 5;
    padding: 6rem 2rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.9) 100%);
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

.contact-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.contact-info h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #3b82f6, #10b981, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-info p {
    font-size: 1.2rem;
    color: #cbd5e1;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 900px;
    margin: 4rem auto 0;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 2.5rem;
    background: rgba(51, 65, 85, 0.4);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.4s ease;
}

.contact-method:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.contact-method:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
}

.contact-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.contact-details h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.contact-details p {
    color: #cbd5e1;
    margin: 0;
    font-size: 1.1rem;
}

.social-section {
    position: relative;
    z-index: 5;
    padding: 4rem 2rem;
    background: rgba(30, 41, 59, 0.6);
    backdrop-filter: blur(10px);
    text-align: center;
}

.social-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.social-content p {
    font-size: 1.1rem;
    color: #cbd5e1;
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem 2.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s ease;
    min-width: 280px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
}

.telegram {
    background: linear-gradient(135deg, rgba(0,136,204,0.15), rgba(0,136,204,0.05));
    color: #0088cc;
}

.whatsapp {
    background: linear-gradient(135deg, rgba(37,211,102,0.15), rgba(37,211,102,0.05));
    color: #25d366;
}

.social-icon-wrapper {
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
}

.social-icon-wrapper svg {
    width: 32px;
    height: 32px;
    transition: all 0.4s ease;
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.4s ease;
}

.social-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.social-subtitle {
    font-size: 0.9rem;
    opacity: 0.8;
}

.social-link:hover .social-icon-wrapper svg {
    transform: scale(1.2) rotate(5deg);
}

.social-link:hover .pulse-ring {
    opacity: 0.3;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0.1; }
    100% { transform: translate(-50%, -50%) scale(1.6); opacity: 0; }
}

.footer-links {
    position: relative;
    z-index: 5;
    padding: 4rem 2rem 2rem;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-column h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #10b981);
}

.footer-column ul {
    list-style: none;
    padding: 0;
}

.footer-column a {
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-column a:hover {
    color: #3b82f6;
    transform: translateX(5px);
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

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

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: #3b82f6;
    display: block;
}

.footer-info p {
    color: #94a3b8;
    font-size: 0.9rem;
}

.cert-badge {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.5rem; }
    .services-grid { grid-template-columns: 1fr; }
    .contact-methods { grid-template-columns: 1fr; }
}