/* ==========================================================================
   COMPONENTES: títulos, botões, cards, chips, campos, WhatsApp
   ========================================================================== */

/* ---- Títulos e textos ---- */

.h2 {
  font-size: var(--step-head);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.section-lead {
  font-size: var(--step-lead);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 40rem;
}

.card-title {
  font-size: var(--step-h3);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: var(--step-small);
  line-height: 1.6;
  color: var(--muted);
}

/* ---- Botões: pílula, borda leve ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--t-press) var(--ease-out), background-color var(--t-hover) ease, border-color var(--t-hover) ease, color var(--t-hover) ease, box-shadow var(--t-hover) ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn-icon {
  width: 1.05em;
  height: 1.05em;
  flex: none;
  transition: transform var(--t-ui) var(--ease-out);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn-ink {
  background: var(--paper-ink);
  color: var(--paper);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--whatsapp-ink);
}

.btn-small {
  min-height: 2.25rem;
  padding: 0.45rem 1rem;
  font-size: var(--step-small);
}

.btn[disabled] {
  cursor: progress;
  opacity: 0.7;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--accent-strong);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 8px 24px -10px rgba(255, 74, 28, 0.6);
  }

  .btn-primary:hover .btn-icon {
    transform: translateX(3px);
  }

  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--line-hover);
  }

  .btn-ink:hover {
    background: var(--surface-2);
  }

  .btn-whatsapp:hover {
    filter: brightness(1.08);
  }
}

/* ---- Card ---- */

.card {
  position: relative;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: border-color var(--t-ui) ease, background-color var(--t-ui) ease, transform var(--t-ui) var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .card:hover {
    border-color: var(--line-hover);
  }
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip,
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  font-size: var(--step-xs);
  color: var(--ink-2);
  background: var(--surface-2);
}

/* ---- Campos ---- */

.form-row {
  display: grid;
  gap: 1rem;
}

.form-group {
  display: grid;
  gap: 0.4rem;
}

.form-group label {
  font-size: var(--step-small);
  font-weight: 500;
  color: var(--ink-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.6rem 0.8rem;
  font-size: var(--step-body);
  color: var(--ink);
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  appearance: none;
  transition: border-color var(--t-hover) ease, box-shadow var(--t-hover) ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--muted);
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23C9C8C4' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group select option {
  background: var(--surface);
  color: var(--ink);
}

.form-group textarea {
  min-height: 7rem;
  resize: vertical;
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--line-hover);
}

.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-group .field-error {
  border-color: var(--error);
}

.field-msg {
  font-size: var(--step-xs);
  color: var(--error);
}

.field-msg:empty {
  display: none;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---- Botão flutuante do WhatsApp ---- */

.whatsapp-btn {
  position: fixed;
  right: max(var(--margin), env(safe-area-inset-right));
  bottom: max(var(--margin), env(safe-area-inset-bottom));
  z-index: var(--z-whatsapp);
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background: var(--whatsapp);
  color: var(--whatsapp-ink);
  box-shadow: 0 10px 30px -10px rgba(37, 211, 102, 0.55);
  transition: transform var(--t-ui) var(--ease-out), opacity var(--t-ui) ease, visibility 0s;
}

.whatsapp-btn.is-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(1rem);
  transition: transform var(--t-ui) var(--ease-out), opacity var(--t-ui) ease, visibility 0s linear var(--t-ui);
}

.whatsapp-btn:active {
  transform: scale(0.94);
}

@media (hover: hover) and (pointer: fine) {
  .whatsapp-btn:hover {
    transform: translateY(-2px);
  }
}