/* ===============================
   One Software BD – Advertisement Style
================================ */
.onesbd-box {
    width: 360px;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    color: #fff;
    padding: 25px;
    border-radius: 18px;
    text-align: center;
    margin: 20px auto;
    box-shadow: 0 15px 40px rgba(0,0,0,0.4);
    animation: onesbdFloat 3s ease-in-out infinite;
}

.onesbd-box h2 {
    font-size: 26px;
    font-weight: bold;
    animation: onesbdGlow 2s infinite alternate;
}

.onesbd-offer {
    background: #facc15;
    color: #000;
    padding: 10px;
    border-radius: 10px;
    margin: 15px 0;
    font-weight: bold;
    animation: onesbdPulse 1.8s infinite;
}

.onesbd-box p {
    margin: 5px 0;
}

.onesbd-box a {
    display: inline-block;
    margin-top: 12px;
    padding: 12px 20px;
    background: #22c55e;
    color: #000;
    font-weight: bold;
    border-radius: 30px;
    text-decoration: none;
    transition: 0.3s;
}

.onesbd-box a:hover {
    background: #4ade80;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(34,197,94,0.6);
}

/* ===============================
   Sidebar Buttons
================================ */
.onesbd-sidebar {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.onesbd-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    border-radius: 40px;
    color: #fff;
    font-weight: bold;
    text-decoration: none;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    transition: 0.3s;
}

.onesbd-btn:hover {
    transform: scale(1.08);
}

.onesbd-btn.wa { background: #25D366; }
.onesbd-btn.call { background: #2563eb; }
.onesbd-btn.msg { background: linear-gradient(135deg, #00b2ff, #006aff); }

/* ===============================
   Animations
================================ */
@keyframes onesbdFloat {
    0% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0); }
}

@keyframes onesbdGlow {
    from { text-shadow: 0 0 5px #93c5fd; }
    to { text-shadow: 0 0 20px #bfdbfe; }
}

@keyframes onesbdPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}