/* ============================================================
   DIETA FÁCIL — Buttons Component
   ============================================================ */
.btn-df {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font-accent);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;
}
.btn-df:hover { transform: translateY(-1px); }
.btn-df:active { transform: translateY(0) scale(0.98); }

.btn-df-primary {
    background: var(--gradient-primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-primary);
}
.btn-df-primary:hover { box-shadow: 0 6px 25px rgba(108,99,255,0.35); color: #fff; }

.btn-df-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
}
.btn-df-secondary:hover { background: var(--border); color: var(--text-primary); }

.btn-df-success {
    background: var(--gradient-green);
    color: var(--text-inverse);
    box-shadow: var(--shadow-success);
}

.btn-df-danger {
    background: var(--gradient-warm);
    color: var(--text-inverse);
}

.btn-df-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-df-outline:hover {
    background: var(--primary);
    color: var(--text-inverse);
}

.btn-df-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 16px;
}
.btn-df-ghost:hover { background: var(--bg-input); color: var(--text-primary); }

.btn-df-icon {
    width: 40px; height: 40px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-df-sm { padding: 6px 16px; font-size: 0.8rem; }
.btn-df-lg { padding: 14px 32px; font-size: 1rem; }
.btn-df-block { width: 100%; }

.btn-df .spinner-border { width: 18px; height: 18px; border-width: 2px; }