/* ============================================================
   LUMMA CONNECT — Base / Reset / Utilidades globales
   ============================================================ */

/* --- Reset moderno ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-regular);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ---- Tipografía base ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl)); }
h2 { font-size: clamp(var(--text-2xl), 3.5vw, var(--text-4xl)); }
h3 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  max-width: 68ch;
}

p.wide { max-width: none; }

a {
  color: var(--text-accent);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color var(--transition-fast),
              text-decoration-color var(--transition-fast);
}

a:hover {
  text-decoration-color: currentColor;
}

a:focus-visible {
  outline: 2px solid var(--color-brand-purple);
  outline-offset: 3px;
  border-radius: 4px;
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol { list-style: none; }

/* ---- Contenedor principal ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Secciones ---- */
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--sm {
  padding-block: clamp(var(--space-10), 5vw, var(--space-20));
}

.section--lg {
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
}

/* ---- Encabezado de sección ---- */
.section-header {
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-header--centered {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-teal-dark);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-heading);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 60ch;
}

.section-header--centered .section-subtitle {
  margin-inline: auto;
}

/* ---- Fondos alternados ---- */
.bg-white    { background-color: var(--color-white); }
.bg-light    { background-color: var(--color-gray-50); }
.bg-accent   { background-color: var(--color-brand-purple-pale); }
.bg-dark     { background-color: var(--color-gray-900); }
.bg-black    { background-color: var(--color-black); }

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.75rem;
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  font-family: var(--font-heading);
  letter-spacing: 0.01em;
  border-radius: var(--radius-full);
  min-height: 48px;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-spring);
  white-space: nowrap;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-brand-purple);
  outline-offset: 3px;
}

.btn:active {
  transform: scale(0.98);
}

/* Variante primaria — MORADO */
.btn-primary {
  background-color: var(--color-brand-purple);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-brand-purple-dark);
  box-shadow: var(--shadow-brand);
  text-decoration: none;
  color: var(--color-white);
}

/* Variante secundaria — TEAL brillante */
.btn-secondary {
  background-color: transparent;
  color: var(--color-brand-teal);
  border: 1.5px solid var(--color-brand-teal);
}

.btn-secondary:hover {
  background-color: var(--color-brand-teal-pale);
  text-decoration: none;
  color: var(--color-brand-teal-dark);
}

/* Variante ghost (texto) */
.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  padding-inline: var(--space-4);
}

.btn-ghost:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* Variante blanca (sobre fondo oscuro) */
.btn-white {
  background-color: var(--color-white);
  color: var(--color-brand-purple);
}

.btn-white:hover {
  background-color: var(--color-gray-100);
  text-decoration: none;
  color: var(--color-brand-purple);
}

/* Variante outline blanca */
.btn-outline-white {
  background-color: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.5);
}

.btn-outline-white:hover {
  background-color: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.8);
  text-decoration: none;
  color: var(--color-white);
}

/* Tamaños */
.btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-xs);
  min-height: 40px;
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--text-base);
  min-height: 56px;
}

/* Ancho completo */
.btn--block { width: 100%; }

/* ---- Tarjetas ---- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-normal),
              transform var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card__body {
  padding: var(--space-8);
}

.card__header {
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--border-color);
}

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
}

.badge--teal {
  background-color: var(--color-brand-teal-pale);
  color: var(--color-brand-teal);
}

.badge--purple {
  background-color: var(--color-brand-purple-pale);
  color: var(--color-brand-purple);
}

.badge--gray {
  background-color: var(--color-gray-100);
  color: var(--color-gray-600);
}

.badge--dark {
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

/* ---- Divisor ---- */
.divider {
  height: 1px;
  background-color: var(--border-color);
  border: none;
  margin-block: var(--space-8);
}

/* ---- Chip de proceso ---- */
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-brand-purple);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--fw-bold);
  font-family: var(--font-heading);
  flex-shrink: 0;
}

/* ---- Grid utilitarios ---- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
}

/* ---- Flex utilitarios ---- */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---- Texto utilitarios ---- */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ---- Animación de entrada ---- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---- Stagger delay ---- */
.stagger-1 { transition-delay: 50ms; }
.stagger-2 { transition-delay: 100ms; }
.stagger-3 { transition-delay: 150ms; }
.stagger-4 { transition-delay: 200ms; }
.stagger-5 { transition-delay: 250ms; }
.stagger-6 { transition-delay: 300ms; }

/* ---- Espaciado de gap ---- */
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* ---- Forms base ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
}

.form-label .required {
  color: #DC2626;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--color-white);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  min-height: 48px;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand-teal);
  box-shadow: 0 0 0 3px rgba(0,122,135,0.15);
}

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

.form-control:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  opacity: 0.7;
}

.form-control--error {
  border-color: #DC2626;
}

.form-control--error:focus {
  box-shadow: 0 0 0 3px rgba(220,38,38,0.15);
}

.form-error {
  font-size: var(--text-xs);
  color: #DC2626;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

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

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

/* ---- Checkbox personalizado ---- */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  position: relative;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast);
  margin-top: 2px;
}

.form-checkbox input[type="checkbox"]:checked {
  background-color: var(--color-brand-teal);
  border-color: var(--color-brand-teal);
}

.form-checkbox input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  inset: 3px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='white' stroke-width='2'%3E%3Cpath d='M2 6l3 3 5-5'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.form-checkbox input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-brand-teal);
  outline-offset: 2px;
}

.form-checkbox__label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

/* ---- Acordeón ---- */
.accordion-item {
  border-bottom: 1px solid var(--border-color);
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-6) 0;
  font-size: var(--text-base);
  font-weight: var(--fw-semibold);
  font-family: var(--font-heading);
  color: var(--text-primary);
  text-align: left;
  background: none;
  cursor: pointer;
  gap: var(--space-4);
}

.accordion-trigger:hover {
  color: var(--color-brand-teal);
}

.accordion-trigger:focus-visible {
  outline: 2px solid var(--color-brand-teal);
  outline-offset: 3px;
  border-radius: 4px;
}

.accordion-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--color-brand-teal);
}

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

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-normal);
}

.accordion-content[aria-hidden="false"],
.accordion-content.is-open {
  grid-template-rows: 1fr;
}

.accordion-content__inner {
  overflow: hidden;
}

.accordion-body {
  padding-bottom: var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 72ch;
}

/* ---- Alertas / mensajes ---- */
.alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert--success {
  background-color: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}

.alert--error {
  background-color: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

.alert--info {
  background-color: var(--color-brand-teal-pale);
  color: var(--color-brand-teal);
  border: 1px solid var(--color-brand-teal-mid);
}

/* ---- WhatsApp flotante ---- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-sticky);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: #25D366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.45);
  transition: transform var(--transition-spring),
              box-shadow var(--transition-normal);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 28px rgba(37,211,102,0.55);
  color: white;
  text-decoration: none;
}

.whatsapp-float:focus-visible {
  outline: 2px solid #25D366;
  outline-offset: 3px;
}

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

/* ---- Skip link accesibilidad ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--color-brand-teal);
  color: white;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: var(--fw-semibold);
  z-index: var(--z-modal);
  transition: top var(--transition-fast);
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

/* ---- Scrollbar personalizado ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* ---- Selección de texto ---- */
::selection {
  background-color: var(--color-brand-teal-mid);
  color: var(--color-gray-900);
}