/* ================================================================
   BUTTONS SECTION — Sistema de Botões
   ================================================================ */

.btn-showcase,
.btn-sizes,
.btn-with-icons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}

/* ── Base button ── */
.sc-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--r-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast),
              box-shadow var(--t-fast), transform var(--t-fast), opacity var(--t-fast);
  position: relative;
  overflow: hidden;
  letter-spacing: -0.01em;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
}

.sc-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.sc-btn:active:not(:disabled) {
  transform: scale(0.97) !important;
}

.sc-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Primary ── */
.sc-btn--primary {
  background: var(--c-blue);
  color: #FBF9F4;
  border-color: var(--c-blue);
}
.sc-btn--primary:hover:not(:disabled) {
  background: #0048B0;
  border-color: #0048B0;
  box-shadow: 0 4px 20px rgba(0, 88, 212, 0.38);
  transform: translateY(-1px);
}

/* ── Secondary ── */
.sc-btn--secondary {
  background: transparent;
  color: var(--c-blue);
  border-color: var(--c-blue);
}
.sc-btn--secondary:hover:not(:disabled) {
  background: var(--accent-dim);
  box-shadow: 0 4px 16px rgba(0, 88, 212, 0.15);
  transform: translateY(-1px);
}

/* ── Ghost ── */
.sc-btn--ghost {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border);
}
.sc-btn--ghost:hover:not(:disabled) {
  background: var(--surface);
  color: var(--text);
}

/* ── Danger ── */
.sc-btn--danger {
  background: var(--c-red);
  color: #FBF9F4;
  border-color: var(--c-red);
}
.sc-btn--danger:hover:not(:disabled) {
  background: #D8381C;
  border-color: #D8381C;
  box-shadow: 0 4px 20px rgba(248, 79, 46, 0.38);
  transform: translateY(-1px);
}

/* ── Success ── */
.sc-btn--success {
  background: var(--c-green-cta);
  color: #1C1C1C;
  border-color: var(--c-green-cta);
}
.sc-btn--success:hover:not(:disabled) {
  background: #70B312;
  border-color: #70B312;
  box-shadow: 0 4px 20px rgba(132, 204, 22, 0.38);
  transform: translateY(-1px);
}

/* ── Sizes ── */
.sc-btn--sm {
  padding: 6px 13px;
  font-size: 12px;
  border-radius: var(--r-xs);
}
.sc-btn--sm svg { width: 13px; height: 13px; }

.sc-btn--lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--r-md);
}
.sc-btn--lg svg { width: 18px; height: 18px; }

/* ── Icon only ── */
.sc-btn--icon-only {
  padding: 9px;
  gap: 0;
}
.sc-btn--icon-only.sc-btn--sm { padding: 6px; }
.sc-btn--icon-only.sc-btn--lg { padding: 13px; }

/* ── Loading ── */
.sc-btn--loading {
  color: transparent !important;
  cursor: wait;
  pointer-events: none;
}
.sc-btn--loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 15px;
  height: 15px;
  margin: -7.5px 0 0 -7.5px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.65s linear infinite;
}
@keyframes btn-spin {
  to { transform: rotate(360deg); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .btn-showcase,
  .btn-sizes,
  .btn-with-icons {
    flex-direction: column;
    align-items: flex-start;
  }
}