/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

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

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(197, 43, 39, 0.32);
}

.btn-ghost {
  background: rgba(34, 38, 47, 0.03);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-border-strong);
  background: rgba(34, 38, 47, 0.06);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--fs-md);
}

.btn-block {
  width: 100%;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--color-text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Card */
.card {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(197, 43, 39, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.card-icon svg {
  width: 26px;
  height: 26px;
}

.card-icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.card h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--space-3);
}

.card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* Solution preview card (homepage "Suite Etherius" grid) */
.solution-preview-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.solution-preview-head .card-icon {
  flex-shrink: 0;
}

/* Badge / tag */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* Stats */
.stat {
  text-align: center;
}

.stat-value {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

.stat-label {
  margin-top: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

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

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

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--fs-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control::placeholder {
  color: var(--color-text-faint);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(197, 43, 39, 0.18);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

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

.form-feedback {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  display: none;
}

.form-feedback.is-visible {
  display: block;
}

.form-feedback.success {
  background: rgba(63, 143, 20, 0.1);
  border: 1px solid rgba(63, 143, 20, 0.3);
  color: var(--color-success);
}

.form-feedback.error {
  background: rgba(197, 43, 39, 0.08);
  border: 1px solid rgba(197, 43, 39, 0.3);
  color: var(--color-danger);
}

/* Select custom look reuses form-control */
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%239aa0c3' stroke-width='1.6' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* Solution / product card (links out to its own product page) */
.solution-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.solution-card .solution-head {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.solution-card .solution-body {
  padding: var(--space-6);
}

/* Filter pills for soluciones page */
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.filter-pill {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.filter-pill.is-active {
  background: var(--gradient-brand);
  color: #fff;
  border-color: transparent;
}

/* Blog card */
.blog-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-strong);
}

.blog-card .blog-thumb {
  height: 180px;
  background: var(--gradient-brand);
  position: relative;
  overflow: hidden;
}

.blog-card .blog-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 30% 20%, rgba(255, 255, 255, 0.25), transparent 60%);
}

.blog-card .blog-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.blog-card .blog-meta {
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
}

.blog-card h3 {
  font-size: var(--fs-md);
}

.blog-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  flex: 1;
}

.blog-card .read-more {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* Accordion (used in servicios/soluciones detail) */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  background: var(--color-surface);
  border: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: var(--fs-base);
  font-weight: 600;
  cursor: pointer;
}

.accordion-trigger svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion-item.is-open .accordion-trigger svg {
  transform: rotate(45deg);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  background: var(--color-bg-elevated);
}

.accordion-panel-inner {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* CTA box (gradient call-to-action panel, used across several pages) */
.cta-box {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--gradient-brand);
  position: relative;
  overflow: hidden;
}

.cta-box h2 {
  font-size: var(--fs-2xl);
  color: #fff;
  max-width: 30ch;
  margin-inline: auto;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 50ch;
  margin: var(--space-4) auto var(--space-8);
}

.cta-box .btn-primary {
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.cta-box .btn-primary:hover {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

/* Back-to-top */
.back-to-top {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 90;
  border: none;
  cursor: pointer;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  left: var(--space-6);
  bottom: var(--space-6);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  z-index: 90;
}

.whatsapp-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(37, 211, 102, 0.5);
}

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

@media (max-width: 640px) {
  .whatsapp-float {
    left: var(--space-4);
    bottom: var(--space-4);
    width: 50px;
    height: 50px;
  }

  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}