/* ============================================
   BOTONES
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: box-shadow var(--transition-base), background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), filter var(--transition-base);
  text-align: center;
  border: 2px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn:hover { filter: brightness(1.05); }
.btn:active { filter: brightness(0.97); }
.btn i, .btn svg { width: 18px; height: 18px; transition: transform var(--transition-base); }
.btn:hover i, .btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-charcoal);
  border-color: var(--color-charcoal);
}
.btn-secondary:hover {
  background: var(--color-charcoal);
  color: var(--color-white);
}
.btn-secondary--light {
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn-secondary--light:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  padding: 0.5rem 0;
  border-radius: 0;
}
.btn-ghost::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.btn-ghost:hover { transform: none; }
.btn-ghost:hover::after { transform: scaleX(1); }

.btn-accent {
  background: var(--color-accent);
  color: var(--color-charcoal);
  box-shadow: var(--shadow-sm);
}
.btn-accent:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-block { width: 100%; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn-lg { padding: 1rem 2rem; font-size: 1rem; }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  height: var(--header-height);
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
  background: transparent;
}
.site-header[data-scroll-state="top"] {
  background: rgba(42, 74, 61, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.site-header[data-scroll-state="scrolled"] {
  background: var(--color-charcoal);
  box-shadow: var(--shadow-md);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 100%;
  padding-block: var(--space-3);
}
.header__logo img {
  height: 56px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.25));
  transition: transform var(--transition-base);
}
.header__logo:hover img { transform: scale(1.05); }

.header__nav { display: none; }
.header__nav ul { display: flex; gap: var(--space-2); }
.header__nav a {
  position: relative;
  display: block;
  padding: var(--space-3) var(--space-4);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--color-white);
  letter-spacing: 0.01em;
  transition: color var(--transition-base);
}
.header__nav a::after {
  content: '';
  position: absolute;
  left: var(--space-4);
  right: var(--space-4);
  bottom: 6px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.header__nav a:hover { color: var(--color-primary-light); }
.header__nav a:hover::after,
.header__nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.header__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-white);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}
.header__toggle:hover { background: rgba(255,255,255,0.1); }
.header__toggle i { width: 24px; height: 24px; }

@media (min-width: 768px) {
  .header__nav { display: block; }
  .header__toggle { display: none; }
}

/* Mobile nav drawer */
@media (max-width: 767px) {
  .header__nav {
    display: block;
    position: fixed;
    inset: 0 0 0 auto;
    width: min(320px, 80vw);
    background: var(--color-charcoal);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
    box-shadow: var(--shadow-xl);
  }
  .header__nav.is-open { transform: translateX(0); }
  .header__nav ul { flex-direction: column; gap: var(--space-1); }
  .header__nav a {
    padding: var(--space-4);
    font-size: 1.125rem;
    border-radius: var(--radius-md);
  }
  .header__nav a::after { display: none; }
  .header__nav a:hover { background: rgba(255,255,255,0.05); }
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: calc(var(--z-header) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
  }
  .nav-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-charcoal);
  color: rgba(255,255,255,0.85);
  padding-block: var(--space-20) var(--space-5);
}
.site-footer h3 {
  color: var(--color-white);
  font-size: 1.125rem;
  margin-bottom: var(--space-5);
  font-weight: 700;
}
.footer__grid {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
@media (min-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr 1fr; }
}
.footer__col p { margin-bottom: var(--space-5); }
.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.footer__contact-item i {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary-light);
  margin-top: 3px;
}
.footer__contact-item span { font-size: 0.9375rem; }
.footer__contact-item a:hover { color: var(--color-primary-light); }

.footer-form { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-form .form-row {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr 1fr;
}
.footer-form input,
.footer-form textarea {
  width: 100%;
  padding: 0.75rem var(--space-4);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: 0.9375rem;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}
.footer-form input:focus,
.footer-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: rgba(255,255,255,0.08);
}
.footer-form input::placeholder,
.footer-form textarea::placeholder { color: rgba(255,255,255,0.5); }
.footer-form textarea { resize: vertical; min-height: 100px; }
.form-message {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  display: none;
}
.form-message.is-success {
  display: block;
  background: rgba(22,163,74,0.15);
  color: #86efac;
  border: 1px solid rgba(22,163,74,0.3);
}
.form-message.is-error {
  display: block;
  background: rgba(220,38,38,0.15);
  color: #fca5a5;
  border: 1px solid rgba(220,38,38,0.3);
}

.footer__sub {
  text-align: center;
  padding-top: var(--space-4);
  padding-bottom: 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.7);
}
.site-footer { padding-block: var(--space-20) var(--space-5); }

.social {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-5);
  flex-wrap: wrap;
}
.social a {
  display: inline-block;
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-base);
}
.social a:hover {
  color: var(--color-primary-light);
}

/* ============================================
   FLOATING ELEMENTS
   ============================================ */
.floating-wa,
.back-to-top {
  position: fixed;
  right: var(--space-6);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-floating);
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-base), opacity var(--transition-base);
  cursor: pointer;
}
.floating-wa {
  bottom: var(--space-6);
  background: #25D366;
  color: white;
}
.floating-wa:hover { transform: scale(1.1); }
.floating-wa svg { width: 28px; height: 28px; }

.back-to-top {
  bottom: calc(var(--space-6) + 64px);
  background: var(--color-charcoal);
  color: white;
  opacity: 0;
  pointer-events: none;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--color-primary); }

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  box-shadow: var(--shadow-xl);
}
.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  margin-bottom: var(--space-5);
  transition: transform var(--transition-base), background-color var(--transition-base);
}
.card__icon i { width: 28px; height: 28px; }
.card:hover .card__icon {
  transform: rotate(-8deg) scale(1.05);
  background: var(--color-accent);
  color: var(--color-charcoal);
}
.card h3 { margin-bottom: var(--space-3); }
.card p {
  color: var(--color-gray-700);
  margin-bottom: var(--space-5);
  flex-grow: 1;
}

/* ============================================
   FORM (modal cotizar)
   ============================================ */
.form-field { margin-bottom: var(--space-4); }
.form-field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-gray-700);
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.75rem var(--space-4);
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}
.form-field textarea { resize: vertical; min-height: 100px; }
.form-field--required label::after {
  content: ' *';
  color: var(--color-primary);
}

/* ============================================
   MODAL
   ============================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.modal[hidden] { display: none; }
.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  animation: fadeIn 250ms var(--ease-out-expo);
}
.modal__dialog {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: scaleIn 300ms var(--ease-out-expo);
}
.modal__dialog--lg { max-width: 920px; }
.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-gray-100);
}
.modal__title { font-size: 1.25rem; }
.modal__close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: background-color var(--transition-base), color var(--transition-base);
}
.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}
.modal__close i { width: 20px; height: 20px; }
.modal__body { padding: var(--space-6); }
.modal__footer {
  padding: var(--space-6);
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ============================================
   CHIPS / FILTROS
   ============================================ */
.chips {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base), transform var(--transition-base);
  border: 1.5px solid transparent;
}
.chip:hover {
  background: var(--color-gray-300);
}
.chip.is-active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ============================================
   SEARCH INPUT
   ============================================ */
.search-input {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 360px;
}
.search-input i {
  position: absolute;
  left: var(--space-4);
  width: 18px;
  height: 18px;
  color: var(--color-gray-500);
  pointer-events: none;
}
.search-input input {
  width: 100%;
  padding: 0.75rem var(--space-4) 0.75rem 2.75rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.search-input input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}