/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  min-height: 44px;
  white-space: nowrap;
}

.btn--primary {
  background: var(--primary);
  color: var(--text-light);
}

.btn--primary:hover {
  background: var(--secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background: var(--accent);
  color: var(--primary);
}

.btn--accent:hover {
  background: #6ec8ff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  border: 2px solid var(--text-light);
  color: var(--text-light);
  background: transparent;
}

.btn--outline:hover {
  background: var(--text-light);
  color: var(--primary);
}

.btn--outline-dark {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn--outline-dark:hover {
  background: var(--primary);
  color: var(--text-light);
}

/* Cards */
.card {
  background: var(--bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}

.card__icon svg {
  width: 32px;
  height: 32px;
}

.card__body {
  padding: var(--spacing-md);
}

.card__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.card__text {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.card__link {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card__link:hover {
  color: var(--accent);
}

/* Form */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.375rem;
}

.form-control {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition);
  min-height: 44px;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(135, 214, 255, 0.3);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0;
}

.lang-toggle__btn {
  padding: 0.25rem 0.5rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-light);
  opacity: 0.6;
  text-decoration: none;
  transition: opacity var(--transition);
}

.lang-toggle__btn.is-active,
.lang-toggle__btn:hover {
  opacity: 1;
}

.lang-toggle__btn:first-child {
  border-right: 1px solid rgba(255, 255, 255, 0.3);
  padding-right: 0.625rem;
  margin-right: 0.125rem;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: var(--z-whatsapp);
  box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
  background: var(--accent);
  color: var(--primary);
}

/* WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-whatsapp);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

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

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}