/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Vazirmatn', sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* Header Styles */
header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.logo h1 {
    color: #2c3e50;
    font-size: 1.5rem;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: #2c3e50;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
}

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

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

.btn-login, .btn-register {
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.btn-login {
    background-color: #3498db;
    color: #fff !important;
}

.btn-register {
    background-color: #2ecc71;
    color: #fff !important;
}

/* Main Content Styles */
main {
    margin-top: 80px;
    padding: 2rem 5%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: #fff;
    padding: 4rem 0;
    text-align: center;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.upload-container {
    margin-top: 2rem;
}

.upload-area {
    border: 2px dashed #fff;
    border-radius: 10px;
    padding: 2rem;
    margin: 1rem 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.upload-area:hover {
    background-color: rgba(255,255,255,0.1);
}

.upload-area i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-btn {
    background-color: #2ecc71;
    color: #fff;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
}

.upload-btn:hover {
    background-color: #27ae60;
}

/* Features Section */
.features {
    padding: 4rem 0;
    text-align: center;
}

.features h2 {
    margin-bottom: 3rem;
    color: #2c3e50;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 1rem;
}

/* How It Works Section */
.how-it-works {
    padding: 4rem 0;
    text-align: center;
    background-color: #fff;
    border-radius: 10px;
    margin: 3rem 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.step {
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: #3498db;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Footer Styles */
footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 4rem 5% 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: #3498db;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

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

.footer-section a:hover {
    color: #3498db;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .navbar {
        padding: 1rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 0.8rem;
        border-radius: 5px;
    }

    .nav-links a:hover {
        background-color: #f8f9fa;
    }

    .btn-login, .btn-register {
        width: 100%;
        text-align: center;
        margin: 0.5rem 0;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
    }
}