/* /styles/components/buttons.css */

.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 46px;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-14);
  font-weight: var(--font-weight-600);
  font-size: var(--font-size-16);
  line-height: var(--line-120);
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--dur-120) var(--ease-out),
    background-color var(--dur-200) var(--ease-out),
    border-color var(--dur-200) var(--ease-out),
    box-shadow var(--dur-200) var(--ease-out),
    color var(--dur-200) var(--ease-out),
    opacity var(--dur-200) var(--ease-out);
}

.c-button:hover { text-decoration: none; transform: translateY(-1px); }
.c-button:active { transform: translateY(1px); }
.c-button:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }

/* PRIMARY = verde (Entrar, ações nav, botões secundários) */
.c-button--primary {
  background: var(--color-button-primary-bg);
  color: var(--color-button-primary-text);
  border-color: transparent;
  box-shadow: var(--shadow-brand-sm);
  position: relative;
  overflow: hidden;
}

.c-button--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
  border-radius: inherit;
}

.c-button--primary:hover {
  background: var(--color-button-primary-bg-hover);
  color: var(--color-button-primary-text);
  box-shadow: var(--shadow-brand-md);
}

.c-button--primary:active { box-shadow: var(--shadow-sm); }

/* CTA = vermelho (só WhatsApp / Falar) */
/* WhatsApp CTA — fundo verde, texto branco */
.c-button--whatsapp-cta {
  background: var(--color-brand-600);
  color: #ffffff;
  border-color: transparent;
  box-shadow: var(--shadow-brand-sm);
  position: relative;
  overflow: hidden;
}

.c-button--whatsapp-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 50%);
  pointer-events: none;
  border-radius: inherit;
}

.c-button--whatsapp-cta:hover {
  background: var(--color-brand-700);
  color: #ffffff;
  box-shadow: var(--shadow-brand-md);
}

.c-button--whatsapp-cta:active { box-shadow: var(--shadow-sm); }

/* GHOST — neutro com borda */
.c-button--ghost {
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-text);
  border-color: var(--color-border);
  box-shadow: none;
  backdrop-filter: blur(8px);
}

.c-button--ghost:hover {
  background: var(--color-slate-100);
  border-color: var(--color-border-2);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* Ghost no fundo escuro (CTA section) */
.s-section--cta .c-button--ghost {
  background: rgba(255,255,255,0.10);
  color: #fff;
  border-color: rgba(255,255,255,0.30);
}

.s-section--cta .c-button--ghost:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.50);
  color: #fff;
}

/* Sizes */
.c-button--full { width: 100%; }

.c-button--sm {
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-14);
  border-radius: var(--radius-10);
}

.c-button--cta {
  min-height: 52px;
  padding: var(--space-3) var(--space-8);
  font-size: var(--font-size-16);
  letter-spacing: 0.01em;
}

/* WhatsApp icon prefix */
.c-button--whatsapp::before,
a[data-whatsapp-link].c-button--whatsapp-cta::before,
a[data-whatsapp-link].c-button--primary::before,
a[data-whatsapp-link].c-button--cta::before,
.c-whatsapp-float::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath fill='white' d='M380.9 97.1C339 55.1 283.2 32 223.9 32c-122.4 0-222 99.6-222 222 0 39.1 10.2 77.3 29.6 111L0 480l117.7-30.9c32.4 17.7 68.9 27 106.1 27h.1c122.3 0 224.1-99.6 224.1-222 0-59.3-25.2-115-67.1-157zm-157 341.6c-33.2 0-65.7-8.9-94-25.7l-6.7-4-69.8 18.3L72 359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-32.6-16.3-54-29.1-75.5-66-5.7-9.8 5.7-9.1 16.3-30.3 1.8-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 35.2 15.2 49 16.5 66.6 13.9 10.7-1.6 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
}

/* Floating WhatsApp */
.c-whatsapp-float {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: calc(var(--z-header) + 1);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45), 0 2px 8px rgba(0,0,0,0.15);
  transition: transform var(--dur-200) var(--ease-out), box-shadow var(--dur-200) var(--ease-out);
  text-decoration: none;
}

.c-whatsapp-float::before { display: none !important; }

.c-whatsapp-float:hover {
  color: #ffffff;
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.55), 0 4px 12px rgba(0,0,0,0.15);
}

.c-whatsapp-float:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

/* Disabled */
.c-button[disabled], .c-button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

/* Button Groups */
.c-button-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

/* Motion Safety */
@media (prefers-reduced-motion: reduce) {
  .c-button { transition: none; }
  .c-button:hover, .c-button:active { transform: none; }
}

/* Responsive */
@media (max-width: 640px) {
  .c-button { min-height: 48px; width: 100%; }
  .c-button--sm { width: auto; }
  .c-button-group { flex-direction: column; align-items: stretch; }
}