/* Button Base Styles */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    font-family: var(--font-family-base);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.4s var(--ease-spring);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.04em;
}

/* Primary Button */
.button--primary {
    background: var(--color-primary);
    color: var(--color-light);
    padding: 14px 32px;
    border-radius: 9999px;
    box-shadow: var(--shadow-purple);
    font-size: 0.85rem;
    text-transform: uppercase;
}

.button--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(190, 130, 189, 0.35);
    background: var(--color-primary-dark);
}

.button--primary:active {
    transform: translateY(0);
}

/* Secondary Button */
.button--secondary {
    background: transparent;
    color: var(--color-primary);
    padding: 12px 28px;
    border: 1.5px solid var(--color-primary);
    border-radius: 9999px;
    font-size: 0.85rem;
    text-transform: uppercase;
}

.button--secondary:hover {
    background: var(--color-primary);
    color: var(--color-light);
    transform: translateY(-2px);
}

.button--secondary:active {
    transform: translateY(0);
}

/* Text Button */
.button--text {
    background: transparent;
    color: var(--color-primary);
    padding: 8px 16px;
    font-size: 0.85rem;
    text-transform: uppercase;
}

.button--text:hover {
    color: var(--color-primary-dark);
}

/* Button Sizes */
.button--small {
    font-size: 0.8rem;
}

.button--small.button--primary { padding: 10px 22px; }
.button--small.button--secondary { padding: 8px 18px; }
.button--small.button--text { padding: 6px 12px; }

.button--large {
    font-size: 0.95rem;
}

.button--large.button--primary { padding: 18px 40px; }
.button--large.button--secondary { padding: 16px 36px; }
.button--large.button--text { padding: 10px 20px; }

/* Button States */
.button--disabled,
.button[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Loading State */
.button--loading {
    color: transparent;
}

.button--loading::after {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    top: 50%;
    left: 50%;
    margin: -9px 0 0 -9px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: button-loading 0.8s linear infinite;
}

@keyframes button-loading {
    to { transform: rotate(360deg); }
}

/* Icon Positioning */
.button--icon-left .button__icon { order: -1; }
.button--icon-right .button__icon { order: 1; }

/* Responsive */
@media screen and (max-width: 767px) {
    .button { padding-left: 24px; padding-right: 24px; }
    .button--large { padding-left: 32px; padding-right: 32px; }
}

/* Floating WhatsApp CTA */
.floating-whatsapp {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background: var(--color-whatsapp);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.4s var(--ease-spring);
    z-index: 999;
    text-decoration: none;
}

.floating-whatsapp:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
    color: white;
}

.floating-whatsapp::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid rgba(37, 211, 102, 0.3);
    animation: whatsapp-pulse 2s ease-in-out infinite;
}

@keyframes whatsapp-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.15); opacity: 0; }
}

@media (max-width: 768px) {
    .floating-whatsapp {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
    }
}