.btn-main,
.btn-ghost-main,
.btn-client-area,
.btn-overlay-main,
.btn-overlay-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.4rem;
    padding: 0.9rem 1.6rem;
    border-radius: 0.15rem;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: transform 0.25s ease, box-shadow 0.25s ease, color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn-main {
    background: rgba(0, 240, 255, 0.1);
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
}

.btn-main:hover {
    background: var(--neon-cyan);
    color: var(--dark-bg);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.32);
    transform: translateY(-2px);
}

.btn-ghost-main,
.btn-overlay-secondary {
    background: transparent;
    color: var(--white-soft);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost-main:hover,
.btn-overlay-secondary:hover {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
}

.btn-client-area {
    border: 1px solid rgba(0, 240, 255, 0.6);
    color: var(--neon-cyan);
    font-family: var(--font-code);
    font-size: 0.8rem;
    background: transparent;
}

.btn-client-area:hover {
    background: var(--neon-cyan);
    color: var(--dark-bg);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
}

.btn-overlay-main {
    background: var(--white-soft);
    color: var(--dark-bg);
    border: 1px solid var(--white-soft);
}

.btn-overlay-main:hover {
    background: var(--neon-cyan);
    border-color: var(--neon-cyan);
    color: var(--dark-bg);
}

.btn-overlay-secondary {
    min-height: 2.9rem;
    padding: 0.72rem 1.2rem;
    font-size: 0.8rem;
}

.contact-buttons {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 1040;
}

.contact-buttons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 999px;
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.28);
}

.contact-buttons-svg {
    width: 1.9rem;
    height: 1.9rem;
}

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

.btn-whatsapp:hover {
    background: #1eb154;
    border-color: #1eb154;
    color: #fff;
    transform: translateY(-2px);
}

@media (max-width: 575.98px) {
    .contact-buttons {
        right: 1rem;
        bottom: 1rem;
    }

    .contact-buttons a {
        width: 3.6rem;
        height: 3.6rem;
    }
}