:root {
    --tg-blue: #0088cc;
    --tg-dark-blue: #0077b5;
    --bg-dark: #050a13;
    --card-bg: rgba(255, 255, 255, 0.05);
    --cyan-accent: #38bdf8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Vazirmatn', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: #e2e8f0;
    overflow-x: hidden;
    line-height: 1.8;
}

/* AI Background Effect */
.ai-glow {
    position: fixed;
    top: 20%;
    left: 50%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 136, 204, 0.15) 0%, transparent 70%);
    filter: blur(60px);
    z-index: -1;
    transform: translateX(-50%);
}

header {
    padding: 20px 10%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 1px;
}

.logo span { color: var(--tg-blue); }

nav ul { display: flex; list-style: none; }
nav ul li { margin-right: 30px; }
nav ul li a { text-decoration: none; color: #cbd5e1; font-size: 14px; transition: 0.3s; }
nav ul li a:hover { color: var(--tg-blue); }

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 10%;
}

.badge {
    background: rgba(0, 136, 204, 0.1);
    color: var(--cyan-accent);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 13px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

h1 {
    font-size: 3.5rem;
    margin: 20px 0;
    font-weight: 900;
}

.txt-gradient {
    background: linear-gradient(90deg, #fff, var(--tg-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    max-width: 600px;
    margin: 0 auto 30px;
    color: #94a3b8;
}

.btn-main {
    background: var(--tg-blue);
    color: white;
    padding: 12px 30px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    box-shadow: 0 10px 20px rgba(0, 136, 204, 0.2);
}

.btn-main:hover { background: var(--tg-dark-blue); transform: translateY(-3px); }

.btn-sub {
    color: white;
    margin-right: 15px;
    text-decoration: none;
    border: 1px solid #334155;
    padding: 12px 30px;
    border-radius: 12px;
}

/* Features */
.features { padding: 100px 10%; }
.section-title { text-align: center; margin-bottom: 50px; font-size: 2rem; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: 0.3s;
}

.card:hover { border-color: var(--tg-blue); background: rgba(0, 136, 204, 0.05); }

.card .icon { font-size: 40px; margin-bottom: 20px; }

/* Contact Section */
.contact-section { padding: 100px 10%; }
.contact-box {
    background: linear-gradient(135deg, rgba(0,136,204,0.1), rgba(0,0,0,0));
    border-radius: 30px;
    padding: 60px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
}

.contact-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.contact-card {
    padding: 20px 40px;
    border-radius: 15px;
    text-decoration: none;
    color: white;
    font-weight: bold;
    min-width: 200px;
    transition: 0.3s;
}

.tg { background: #0088cc; }
.ig { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.phone-placeholder { background: #1e293b; border: 1px dashed #475569; }

.contact-card:hover { transform: scale(1.05); opacity: 0.9; }

footer {
    text-align: center;
    padding: 40px;
    color: #475569;
    font-size: 13px;
    border-top: 1px solid #1e293b;
}

@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    nav ul { display: none; }
}


/* Services List Section */
.services-list {
    padding: 80px 10%;
    background: rgba(255, 255, 255, 0.02);
}

.section-subtitle {
    text-align: center;
    color: #94a3b8;
    margin-bottom: 50px;
    margin-top: -30px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.service-card:hover {
    background: rgba(0, 136, 204, 0.1);
    border-color: var(--tg-blue);
    transform: translateY(-10px);
}

.service-icon {
    font-size: 35px;
    margin-bottom: 20px;
    background: rgba(0, 136, 204, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
}

.service-card h4 {
    font-size: 1.2rem;
    color: #fff;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9rem;
    color: #94a3b8;
    text-align: justify;
}

/* واکنش‌گرایی برای موبایل */
@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}