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

body {
    font-family: 'Vazir', sans-serif;
    direction: rtl;
    background-color: #f5f5f5;
    color: #333;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: #000000;
    color: #fff;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 30px;
}

.nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
}

.nav ul li a:hover {
    color: #ccc;
}

.auth-buttons .btn {
    padding: 8px 20px;
    margin-left: 10px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
}

.auth-buttons .login {
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
}

.auth-buttons .signup {
    background-color: #333;
    color: #fff;
}

.auth-buttons .signup:hover {
    background-color: #444;
}

/* Hero Section */
.hero {
    background-color: #1a1a1a;
    color: #fff;
    padding: 100px 0;
    text-align: center;
    margin-top: 80px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    color: #ccc;
}

.hero-buttons .btn {
    padding: 12px 30px;
    margin: 0 10px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 16px;
}

.hero-buttons .primary {
    background-color: #000000;
    color: #fff;
    border: 1px solid #fff;
}

.hero-buttons .primary:hover {
    background-color: #333;
}

.hero-buttons .secondary {
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
}

.hero-buttons .secondary:hover {
    background-color: #333;
}

/* Footer */
.footer {
    background-color: #000000;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }

    .nav ul {
        flex-direction: column;
        margin: 20px 0;
    }

    .nav ul li {
        margin: 10px 0;
    }

    .auth-buttons {
        margin-bottom: 20px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }
}