/* تعریف فونت Peyda-Bold */
@font-face {
    font-family: 'Peyda';
    src: url('fonts/Peyda-Bold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

:root {
    --primary: #F59E0B;
    --primary-dark: #996a06;
    --bg: #F8FAFC;
    --text: #0F172A;
    --radius: 18px;
    --transition: 0.3s ease;
}

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

/* اعمال فونت Peyda روی کل سایت با fallback Vazirmatn */
body {
    font-family: "Peyda", "Vazirmatn", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.9;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Header */
.header {
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    padding: 15px 0;
}

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

.logo {
    width: 160px;
}

nav a {
    margin-left: 25px;
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

nav a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(to bottom, #fff, #f1f5f9);
}

.hero h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.hero p {
    font-size: 17px;
    color: #475569;
}

/* Systems */
.systems {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 60px 0;
}

.card {
    background: #ffffff;
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
    transition: var(--transition);
    text-align: center;
}

.card:hover {
    transform: translateY(-8px);
}

.card h3 {
    margin-bottom: 10px;
    font-weight: 700;
}

.card p {
    margin-bottom: 20px;
    color: #64748B;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 30px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    text-decoration: none;
    transition: var(--transition);
    background-color: #F59E0B;
}

.btn:hover {
    box-shadow: 0 10px 25px rgba(245,158,11,0.4);
}

/* About */
.about {
    background: #ffffff;
    padding: 60px 0;
    text-align: center;
}

.about h2 {
    font-size: 26px;
    margin-bottom: 20px;
}

.about p {
    max-width: 700px;
    margin: auto;
    color: #475569;
}

/* Footer */
.footer {
    background: #4f5157;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 15px;
    }
}

/* لوگوی Hero */
.hero-logo {
    display: block;
    margin: 0 auto 20px;
    max-width: 200px;
    height: auto;
}