.btn {
    display: inline-flex;
    align-items: center;
    background-color: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-family: var(--font-en);
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    width: 100%;
}

.btn:hover,
.btn:hover i,
.btn:hover span {
    color: black;
    box-shadow: 0 0 20px var(--primary);
    transform: translateY(-3px);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
    margin-top: 15px;
    width: fit-content;
}

/* Filled call-to-action (Google Play download) */
.download-btn {
    gap: 8px;
    background-color: var(--primary);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.35);
}

.download-btn::before {
    background: #fff;
}

.download-btn i {
    font-size: 1.05em;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.btn-outline:hover,
.btn-outline:hover i,
.btn-outline:hover span {
    border-color: var(--primary);
    color: black;
    box-shadow: 0 0 20px var(--primary);
}

.cta-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .cta-buttons {
        display: flex;
        flex-direction: column;
        gap: 15px;
        width: 100%;
    }

    .btn,
    .btn-outline {
        display: flex;
        justify-content: center;
        width: 100%;
        margin-left: 0;
    }
}

/* Floating Buttons */
.float-btn {
    position: fixed;
    bottom: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    z-index: 1000;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
    transition: all 0.3s;
    border: none;
    text-decoration: none;
}

.whatsapp-btn {
    left: 30px;
    background: #25d366;
    border: 1px solid #25d366;
}

.whatsapp-btn:hover {
    background: #128c7e;
    box-shadow: 0 0 20px #25d366;
    transform: translateY(-5px);
}

.scroll-btn {
    left: 30px;
    bottom: 95px;
    /* Stacked above WhatsApp (30 + 50 + 15 gap) */
    background: var(--primary);
    border: 1px solid var(--primary);
    opacity: 0;
    visibility: hidden;
}

.scroll-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-btn:hover {
    background: transparent;
    color: var(--primary);
    box-shadow: 0 0 20px var(--primary);
    transform: translateY(-5px);
}