.ui-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
    min-height: 32px;
    border: 0;
    border-radius: 6px;
    padding: 0 16px;
    cursor: pointer;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 0.9em;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
    transition: background 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

.ui-button:hover,
.ui-button:focus {
    opacity: 0.72;
}

.ui-button:disabled {
    cursor: wait;
    opacity: 0.72;
}

.ui-button.is-loading {
    pointer-events: none;
}

.ui-button-spinner {
    width: 14px;
    height: 14px;
    flex: 0 0 auto;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: ui-button-spin .72s linear infinite;
}

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

.ui-button-primary {
    background: var(--amarelo);
    color: #000000;
}

.ui-button-primary:hover,
.ui-button-primary:focus {
    background: #1f2937;
    color: #ffffff;
    opacity: 1;
}

.ui-button-dark {
    background: #333333;
    color: #ffffff;
}

.ui-button-secondary {
    border: 1px solid #d7dce5;
    background: #ffffff;
    color: #334155;
}

.ui-button-secondary:hover,
.ui-button-secondary:focus {
    background: #f8fafc;
    color: #111827;
    opacity: 1;
}

.ui-button-ghost {
    border: 1px solid #d1d5db;
    background: #ffffff;
    color: #374151;
}

.ui-button-ghost:hover,
.ui-button-ghost:focus {
    background: #f8fafc;
    color: #111827;
    opacity: 1;
}

.ui-button-link {
    min-height: 0;
    border: 0;
    border-radius: 0;
    padding: 0;
    background: transparent;
    color: #0b63ff;
    text-transform: none;
}

.ui-button-link:hover,
.ui-button-link:focus {
    color: #0847b8;
    opacity: 1;
}

.ui-button-icon {
    width: 34px;
    height: 34px;
    min-height: 34px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid #e5e7eb;
    background: #ffffff;
    color: #111827;
}

.ui-button-icon:hover,
.ui-button-icon:focus {
    background: #f8fafc;
    opacity: 1;
}

.ui-button.whatsapp-button {
    border: 1px solid #1fb85a;
    background: #25d366;
    color: #ffffff;
}

.ui-button.whatsapp-button:hover,
.ui-button.whatsapp-button:focus {
    background: #1fb85a;
    color: #ffffff;
    opacity: 1;
}

.ui-button.whatsapp-button img {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.ui-button-tab {
    min-height: 34px;
    border: 1px solid #d7dce5;
    background: #ffffff;
    color: #475569;
    text-transform: none;
}

.ui-button-tab:hover,
.ui-button-tab:focus {
    background: #f8fafc;
    color: #111827;
    opacity: 1;
}

.ui-button-tab.is-active {
    border-color: #111827;
    background: #111827;
    color: #ffffff;
}

.ui-button-tab.is-active:hover,
.ui-button-tab.is-active:focus {
    background: #111827;
    color: #ffffff;
    opacity: 0.92;
}

.ui-button-control {
    min-height: 44px;
    justify-content: space-between;
    border: 1px solid #d6dbe3;
    background: #ffffff;
    color: #111827;
    font-size: 15px;
    text-align: left;
    text-transform: none;
}

.ui-button-control:hover,
.ui-button-control:focus {
    border-color: #b7c1d0;
    background: #fbfcfe;
    opacity: 1;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, .06);
}

.ui-button-menu {
    width: 100%;
    justify-content: flex-start;
    border: 0;
    border-top: 1px solid #f2f2f2;
    border-radius: 0;
    padding: 11px 14px;
    background: #ffffff;
    color: #333333;
    font-size: 0.87em;
    text-align: left;
    text-transform: none;
}

.ui-button-menu:hover,
.ui-button-menu:focus {
    background: #f7f7f7;
    opacity: 1;
}

.ui-button-menu.danger {
    color: var(--danger, #d92d20);
}

.ui-button-menu.danger:hover,
.ui-button-menu.danger:focus {
    background: rgba(217, 45, 32, .08);
}

.ui-button-danger {
    background: #ef3038;
    color: #ffffff;
}

.ui-button-danger-soft {
    border: 1px solid #cbd5e1;
    background: #f8fafc;
    color: #991b1b;
}

.ui-button-sm {
    min-height: 28px;
    padding: 0 12px;
    font-size: 0.82em;
}

.ui-button-md {
    min-height: 36px;
    padding: 0 16px;
}

.ui-button-lg {
    min-height: 42px;
    padding: 10px 18px;
    line-height: 1.2;
}