body {
    font-family: 'IRANSans', sans-serif;
    margin: 0;
    padding: 0;
    background: #E3F2FD; /* آبی ملایم */
    color: #333;
    direction: rtl;
    text-align: right;
}
header {
    background: #1B263B; /* آبی سورمه‌ای */
    color: #fff;
    padding: 1rem;
    text-align: center;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}
nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}
nav ul li a:hover {
    color: #ffeb3b; /* زرد شاد برای هاور */
}
main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}
section {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    animation: fadeIn 1s ease-in;
    overflow: hidden;
}
.box-container {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}
.box {
    flex: 1;
    background: #f9f9f9;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.box p {
    margin: 0.5rem 0;
}
.btn {
    background: #ff5722; /* نارنجی شاد برای دکمه */
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    margin: 0.5rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.btn:hover {
    transform: scale(1.05);
    opacity: 0.9;
}
.notification {
    position: fixed;
    left: 20px;
    top: 20px;
    background: #fff;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.notification.show {
    opacity: 1;
    visibility: visible;
}
.notification-contact {
    background: #2ecc71; /* سبز شاد */
    color: #fff;
}
.notification-about {
    background: #ff4081; /* صورتی شاد */
    color: #fff;
}
footer {
    background: #1B263B; /* آبی سورمه‌ای */
    color: #fff;
    text-align: center;
    padding: 1rem;
    bottom: 0;
    width: 100%;
}
@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}
@media (max-width: 600px) {
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    main {
        margin: 1rem;
    }
    .box-container {
        flex-direction: column;
    }
    .box {
        min-height: 200px;
    }
    .notification {
        left: 10px;
        right: 10px;
        width: calc(100% - 20px);
    }
}