* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Vazirmatn', sans-serif;
    direction: rtl;
    background-image: url('bg.jpg'); /* همین عکس DarkFireShop */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
}

/* لایه تیره برای خوانایی */
.overlay {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at top, rgba(255,215,0,0.15), rgba(0,0,0,0.85));
    z-index: 0;
}

/* کانتینر اصلی */
.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* لوگو و عنوان */
.logo-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}
.df-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid #ffd700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 22px;
    color: #ffd700;
    background: rgba(0,0,0,0.7);
    box-shadow: 0 0 15px rgba(255,215,0,0.7);
}
.titles h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(255,215,0,0.8);
}
.titles h2 {
    margin: 0;
    font-size: 14px;
    font-weight: 400;
    color: #ffdd88;
}

/* باکس پرداخت گلس + طلایی */
.pay-box {
    width: 100%;
    max-width: 380px;
    margin-top: 10px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,215,0,0.4);
    box-shadow:
        0 0 20px rgba(0,0,0,0.9),
        0 0 18px rgba(255,215,0,0.4);
}
.pay-title {
    margin: 0 0 12px 0;
    font-size: 15px;
    font-weight: 600;
    color: #ffdd88;
}

/* دکمه‌ها */
.btn {
    width: 100%;
    padding: 12px;
    margin: 6px 0;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
}

/* طلایی */
.btn.gold {
    background: linear-gradient(135deg, #b8860b, #ffd700);
    box-shadow: 0 0 12px rgba(255,215,0,0.8);
}
/* قرمز */
.btn.red {
    background: linear-gradient(135deg, #8b0000, #ff4500);
    box-shadow: 0 0 12px rgba(255,69,0,0.8);
}
/* آبی */
.btn.blue {
    background: linear-gradient(135deg, #004b8b, #1e90ff);
    box-shadow: 0 0 12px rgba(30,144,255,0.8);
}
/* خاکستری */
.btn.gray {
    background: linear-gradient(135deg, #444, #777);
    box-shadow: 0 0 12px rgba(200,200,200,0.6);
}

/* افکت Hover */
.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 18px rgba(255,255,255,0.9);
}

/* فوتر */
.footer {
    margin-top: 18px;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #ffdd88;
    text-shadow: 0 0 8px rgba(255,215,0,0.7);
}