/* ==========================================================================
   Components — botones, cards, forms, header, footer, etc.
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: 
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  min-height: 44px;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  box-shadow: 0 10px 28px hsl(15 85% 40% / 0.4);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn--secondary:hover {
  background-color: var(--color-surface-alt);
  border-color: var(--color-text-muted);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
}

.btn--ghost:hover {
  color: var(--color-text);
  background: var(--color-surface-alt);
}

.btn--lg {
  padding: 1.05rem 1.85rem;
  font-size: var(--text-base);
  min-height: 52px;
}

.btn--sm {
  padding: 0.6rem 1.1rem;
  font-size: var(--text-xs);
  min-height: 36px;
}

.btn--full {
  width: 100%;
}

/* ---------- Announcement bar ---------- */
.announcement {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--announcement-height);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.announcement__dot {
  width: 7px;
  height: 7px;
  background: var(--color-success);
  border-radius: 50%;
  margin-right: var(--space-2);
  animation: pulseGreen 2s ease-in-out infinite;
}

@keyframes pulseGreen {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: hsl(0 0% 8% / 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: height var(--duration-base) var(--ease-out);
}

[data-theme="light"] .site-header {
  background: hsl(30 20% 97% / 0.9);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  flex-shrink: 0;
}

.logo__mark {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--color-text-inverse);
  font-size: 1.1rem;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-text);
  background: var(--color-surface-alt);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Theme toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.theme-toggle:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
}

.menu-toggle:hover {
  background: var(--color-surface-alt);
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

.card:hover {
  border-color: var(--color-border-strong);
}

.card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.card__media img {
  width: 100%;
  height: 100%;
  transition: transform var(--duration-slower) var(--ease-out);
}

.card:hover .card__media img {
  transform: scale(1.03);
}

.card__body {
  padding: var(--space-5) var(--space-5) var(--space-6);
}

.card__category {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
}

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: auto;
}

/* ---------- Trust bar ---------- */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8) var(--space-12);
  padding-block: var(--space-8);
  border-block: 1px solid var(--color-border);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.trust-item svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ---------- FAQ Accordion ---------- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: left;
  color: var(--color-text);
  transition: color var(--duration-fast);
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--duration-base) var(--ease-out);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-slow) var(--ease-out);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  grid-template-rows: 1fr;
}

.faq-answer__inner {
  overflow: hidden;
}

.faq-answer__inner p {
  padding-bottom: var(--space-5);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 65ch;
}

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  min-height: 48px;
}

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

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px hsl(15 85% 52% / 0.2);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  margin-top: var(--space-2);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-2);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 28ch;
  line-height: var(--leading-relaxed);
}

.footer__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__list a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.footer__list a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__legal a {
  color: var(--color-text-subtle);
  transition: color var(--duration-fast);
}

.footer__legal a:hover {
  color: var(--color-text-muted);
}

/* ---------- WhatsApp float ---------- */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-sticky);
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px hsl(142 70% 40% / 0.4);
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast);
}

.whatsapp-float:hover {
  transform: scale(1.06);
  box-shadow: 0 8px 28px hsl(142 70% 40% / 0.5);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  color: white;
}

/* ---------- Badge / tags ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius-sm);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.badge--success {
  background: hsl(145 40% 18%);
  color: hsl(145 60% 55%);
}

[data-theme="light"] .badge--success {
  background: hsl(145 40% 92%);
  color: hsl(145 60% 32%);
}

/* ---------- Process steps ---------- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-top: var(--space-8);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.process-step h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.process-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}