/* ==========================================================================
   LeanHaus — Componentes reutilizables
   ========================================================================== */

/* ---- Botones ---- */
.btn {
  --btn-h: 3.375rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: var(--btn-h);
  padding: 0 1.625rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out),
    transform 600ms var(--ease-expo);
}

.btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transform: translate3d(var(--mag-x, 0px), var(--mag-y, 0px), 0) scale(var(--press, 1));
}

.btn--primary {
  background: var(--brand-oxford);
  color: var(--brand-choco);
}
/* Relleno crema que sube desde abajo al pasar el ratón */
.btn--primary::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--brand-cream);
  transform: translate3d(0, 102%, 0);
  transition: transform 650ms var(--ease-expo);
}
.btn--primary:hover::before { transform: none; }

/* Sobre crema: botón chocolate que se llena de Oxford al pasar el ratón */
.theme-light .btn--primary { background: var(--brand-choco); color: var(--brand-cream); }
.theme-light .btn--primary::before { background: var(--brand-oxford); }
.theme-light .btn--primary:hover { color: var(--brand-choco); }
.btn:active { --press: 0.97; }

.btn--sm { --btn-h: 2.75rem; padding: 0 1.25rem; font-size: 0.875rem; }
.btn--lg { --btn-h: 3.75rem; min-width: 10rem; padding: 0 2.5rem; font-size: 1rem; }

.btn__icon {
  width: 1.125rem;
  height: 1.125rem;
  flex: none;
  transition: transform var(--dur) var(--ease-out);
}
.btn:hover .btn__icon { transform: translateX(4px); }

.btn[aria-busy="true"] { pointer-events: none; opacity: 0.7; }

/* ---- Enlace con subrayado animado ---- */
.link-arrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  color: var(--fg);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
}
.link-arrow::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.55rem;
  height: 1px;
  background: currentColor;
  transform-origin: right;
  transition: transform var(--dur) var(--ease-out);
}
.link-arrow:hover::after { transform: scaleX(0); transform-origin: left; }

/* ---- Etiquetas ---- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.875rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  line-height: 1.3;
  color: var(--fg);
}

.tags--quiet .tag {
  border-color: var(--line);
  color: var(--fg-muted);
  font-size: 0.8125rem;
}

/* ---- Marquee de logos ---- */
.marquee {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.marquee__viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 60s linear infinite;
}

.marquee__list {
  display: flex;
  align-items: center;
  flex: none;
}

.logo {
  display: flex;
  align-items: center;
  padding-inline: clamp(1.75rem, 1rem + 2.5vw, 3.5rem);
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 0.95rem + 0.5vw, 1.375rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  white-space: nowrap;
  color: var(--fg-muted);
  transition: color var(--dur) var(--ease-out);
}
.logo:hover { color: var(--fg); }

.marquee__viewport:hover .marquee__track,
.marquee.is-paused .marquee__track { animation-play-state: paused; }

.marquee__toggle {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--fg-muted);
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.marquee__toggle:hover { color: var(--fg); border-color: var(--fg-subtle); }
.marquee__icon { width: 14px; height: 14px; }
.marquee__icon--play { display: none; }
.marquee.is-paused .marquee__icon--play { display: block; }
.marquee.is-paused .marquee__icon--pause { display: none; }

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* Sin animación: logos estáticos y sin duplicado */
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; width: auto; flex-wrap: wrap; }
  .marquee__list[aria-hidden="true"],
  .marquee__toggle { display: none; }
  .marquee__list { flex-wrap: wrap; row-gap: 1rem; }
  .marquee__viewport { -webkit-mask-image: none; mask-image: none; }
}

/* ---- Chips seleccionables (checkbox / radio) ---- */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}

.chip__input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}

.chip__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.5rem 1.125rem;
  border: 1px solid var(--fg-subtle);
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  line-height: 1.2;
  color: var(--fg);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.chip:hover .chip__label { border-color: var(--fg); }

.chip__input:checked + .chip__label {
  background: var(--brand-oxford);
  border-color: var(--brand-oxford);
  color: var(--brand-choco);
}

.chip__input:focus-visible + .chip__label {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.chip--time .chip__label {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

/* ---- Campos de formulario ---- */
.fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 1.25rem;
}

.field { display: grid; gap: 0.5rem; align-content: start; }
.field--full { grid-column: 1 / -1; }

.field__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg);
}

.optional { font-weight: 400; color: var(--fg-muted); }

.field__input {
  width: 100%;
  min-height: 3rem;
  padding: 0.625rem 0;
  border: 0;
  border-bottom: 1px solid var(--fg-subtle);
  border-radius: 0;
  background: transparent;
  color: var(--fg);
  font-size: 1.0625rem;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.field__input:hover { border-bottom-color: var(--fg-muted); }
.field__input:focus-visible {
  outline: none;
  border-bottom-color: var(--focus, var(--brand-oxford));
  box-shadow: 0 1px 0 0 var(--focus, var(--brand-oxford));
}
.field__input--area { resize: vertical; min-height: 5.5rem; line-height: 1.5; }
.field__input[type="date"] { color-scheme: dark; }

.field__input[aria-invalid="true"] { border-bottom-color: var(--error-line, #E8A48F); }

.field-hint,
.field-note {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

.field-error {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--error, #F0B8A6);
}
.field-error::before { content: "—"; }
.field-error[hidden] { display: none; }

/* ---- Botón de menú (móvil) ---- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  padding: 0 0.25rem 0 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
}

.nav-toggle__icon {
  position: relative;
  display: grid;
  place-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 50%;
}
.nav-toggle__icon span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--dur) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

/* ---- Barra de progreso de lectura (en la cabecera) ---- */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  background: var(--brand-oxford);
  transform-origin: left;
  transform: scaleX(var(--progress, 0));
}

/* ---- Botón circular de icono (pausas de animación) ---- */
.icon-btn {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--fg-muted);
  transition: color var(--dur-fast), border-color var(--dur-fast), background-color var(--dur-fast);
}
.icon-btn:hover { color: var(--fg); border-color: var(--fg-subtle); }
.icon-btn svg { width: 14px; height: 14px; }
.icon-btn .icon-play { display: none; }
.icon-btn[aria-pressed="true"] .icon-play { display: block; }
.icon-btn[aria-pressed="true"] .icon-pause { display: none; }