@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazir.woff2') format('woff2');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

:root {
    --bg-color: #1a202c; 
    --card-bg: #2d3748;
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;
    --accent-color: #4ade80; 
}

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

body {
    font-family: 'Vazirmatn', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero {
    text-align: center;
    padding: 100px 0 60px;
}

.hero img.logo {
    width: 150px;
    height: auto;
    border-radius: 30px;
    margin-bottom: 30px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.hero img.logo:hover {
    transform: scale(1.05);
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* دکمه‌ها */
.btn {
    display: inline-block;
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    padding: 12px 35px;
    font-size: 1.1rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px rgba(74, 222, 128, 0.4);
}

.about {
    background: rgba(255, 255, 255, 0.02);
    padding: 80px 0;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.about h2 {
    font-size: 2rem;
    margin-bottom: 25px;
}

.about p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* ویژگی‌ها */
.features {
    padding: 80px 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255,255,255,0.03);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255,255,255,0.05);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* فوتر */
.footer {
    text-align: center;
    padding: 60px 0 40px;
    background: #151a23;
}

.footer p {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.copyright {
    margin-top: 50px !important;
    font-size: 0.8rem !important;
    color: #64748b !important;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    .about p { font-size: 0.95rem; }
}

.social-buttons {
        display: flex;
        justify-content: center;
        gap: 15px;
        flex-wrap: wrap;
        margin-top: 20px;
    }
    
.social-buttons .btn {
    padding: 10px 25px;
    font-size: 1rem;
}

.btn.disabled {
        pointer-events: none; 
        opacity: 0.5; 
        border-color: #475569; 
        color: #94a3b8;
    }