:root {
    --primary-dark: #003366;
    --primary-medium: #0066cc;
    --primary-light: #66b3ff;
    --accent: #ff9900;
    --accent-light: #ffcc00;
    --dark: #222222;
    --light: #f8f9fa;
    --white: #ffffff;
}
html{
    max-width: 1920px;
    scroll-behavior: smooth;

    margin: 0 auto;
}
body {
    font-family: 'IRANSans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--dark);
    line-height: 1.8;
    background-color: var(--light);

}

/* هدر مدرن */
.header {
    background-color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 48px;
    transition: all 0.3s ease;
}

.logo:hover img {
    transform: rotate(-5deg);
}

.logo-text {
    margin-right: 12px;
}

.logo-text h1 {
    margin: 0;
    font-size: 1.4rem;
    color: var(--primary-dark);
    font-weight: 800;
}

.logo-text p {
    margin: 0;
    font-size: 0.8rem;
    color: var(--primary-medium);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin-right: 25px;
}

.nav-menu a {
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
    transition: all 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

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

.nav-menu a:hover::after {
    width: 100%;
    left: 0;
}

/* هیرو مدرن */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.9) 0%, rgba(0, 102, 204, 0.8) 100%), 
                url('https://images.unsplash.com/photo-1581093450021-4a7360e9a7e2?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center;
    background-size: cover;
    padding: 120px 20px 80px;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: var(--white);
    transform: skewY(-3deg);
    z-index: 1;
}

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

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 153, 0, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 204, 0, 0.4);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* بخش‌های اصلی */
.section {
    padding: 100px 20px;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
    font-weight: 800;
}

.section-title p {
    color: var(--medium-gray);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-medium), var(--accent));
    margin: 20px auto 0;
    border-radius: 2px;
}

/* معرفی دستگاه */
.device-intro {
    background-color: var(--white);
}

.intro-container {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.intro-text {
    flex: 1;
}

.intro-text h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.intro-text p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.intro-image {
    flex: 1;
    position: relative;
}

.intro-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s ease;
}

.intro-image:hover img {
    transform: scale(1.03);
}

.intro-image::before {
    content: '';
    position: absolute;
    width: 80%;
    height: 80%;
    bottom: -20px;
    right: -20px;
    background-color: var(--primary-light);
    z-index: -1;
    border-radius: 10px;
    opacity: 0.5;
}

/* ویژگی‌ها */
.features {
    background-color: var(--light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    text-align: center;
    border-bottom: 4px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    border-bottom-color: var(--accent);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: var(--primary-dark);
    font-size: 1.8rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background-color: var(--accent);
    color: var(--white);
    transform: rotate(15deg) scale(1.1);
}

.feature-title {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 15px;
    font-weight: 700;
}

/* تماس */
.contact {
    background-color: var(--white);
}

.contact-container {
    display: flex;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.info-icon {
    background-color: var(--primary-light);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-size: 1.2rem;
    margin-left: 15px;
    flex-shrink: 0;
}

.info-text h4 {
    margin: 0 0 5px;
    font-size: 1.1rem;
}

.info-text p {
    margin: 0;
    color: var(--medium-gray);
}

.contact-form {
    flex: 1;
    background-color: var(--light);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    transition: all 0.3s ease;
	    box-sizing: border-box;

}

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

.form-group textarea {
    height: 140px;
    resize: vertical;
}

.submit-btn {
    background-color: var(--accent);
    color: var(--white);
    border: none;
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 10px;
}

.submit-btn:hover {
    background-color: var(--accent-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 204, 0, 0.3);
}

/* فوتر */
.footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 60px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: var(--white);
    transform: skewY(3deg);
    z-index: 1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-col {
    flex: 1;
    min-width: 250px;
}

.footer-col h3 {
    color: var(--white);
    margin-bottom: 25px;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 50px;
    height: 2px;
    background-color: var(--accent);
}

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

.footer-links li {
    margin-bottom: 12px;
}

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

.footer-links a:hover {
    color: var(--accent);
    transform: translateX(-5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

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

.fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

/* رسپانسیو */
@media (max-width: 992px) {
    .intro-container {
        flex-direction: column;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        padding: 15px;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-menu li {
        margin: 0 10px 10px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
}