/* =====================================================
   contact.css — Sección 5: Contacto & Footer
   Formulario HUD minimalista + footer con info legal/nav
   ===================================================== */

/* =====================================================
   CONTACTO
   ===================================================== */

.contact {
  position: relative;
  overflow: hidden;
}

/* ---------- Constelación de Datos Pulsante (fondo reactivo) ----------
   Canvas nativo: red de nodos + líneas + partículas flotantes.
   pointer-events:none → no bloquea el formulario. */
.contact__constellation {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  z-index: 0; /* detrás del contenido del section */
  opacity: 1; /* la opacidad sutil se controla dentro del canvas */
}

/* El contenido debe quedar por encima del canvas */
.contact .container,
.contact .contact__form,
.contact .contact__header {
  position: relative;
  z-index: 1;
}

/* Fade superior desde bg-primary (continúa desde about) */
.contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    transparent
  );
  pointer-events: none;
  z-index: 1;
}

/* ---------- Header ---------- */
.contact__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-9);
  /* Estado inicial controlado por la clase global `.reveal-soft`
     (opacity:0; filter:blur(12px); transform:translateY(40px)).
     initReveal() (IntersectionObserver) la quita cuando entra
     al viewport → la animación de scroll-driven es 100% CSS,
     sin lógica de offsets. */
}

.contact__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--accent-color);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: rgba(73, 197, 182, 0.06);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-pill);
}

.contact__title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-4);
  color: var(--text-main);
  text-wrap: balance;
}

.contact__title-accent {
  display: block;
  color: var(--accent-color);
  font-weight: 900;
  letter-spacing: 0.02em;
  text-shadow: 0 0 24px var(--accent-glow);
}

.contact__subtitle {
  font-size: var(--fs-body);
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 56ch;
  margin: 0 auto;
}

/* =====================================================
   FORMULARIO HUD
   ===================================================== */

.contact__form {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

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

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }
}

/* Form field — HUD style: bottom border only, glow on focus */
.form-field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  /* Estado inicial scroll-driven vía IntersectionObserver + CSS.
     initReveal() añade .is-visible al entrar al viewport. */
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 600ms var(--ease-out-expo),
    transform 600ms var(--ease-out-expo);
  will-change: opacity, transform;
}

/* Stagger por nth-child */
.form-field:nth-child(1) { transition-delay: 0ms; }
.form-field:nth-child(2) { transition-delay: 80ms; }
.form-field:nth-child(3) { transition-delay: 160ms; }
.form-field:nth-child(4) { transition-delay: 240ms; }

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

.form-field--full {
  grid-column: 1 / -1;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-color);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: var(--space-3) 0;
  border: none;
  border-bottom: 1px solid rgba(73, 197, 182, 0.18);
  background: transparent;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  outline: none;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 300ms var(--ease-smooth);
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2349c5b6' stroke-width='1.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  background-size: 16px;
  padding-right: 24px;
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-mono);
  line-height: 1.6;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-bottom-color: var(--accent-color);
  box-shadow:
    0 1px 0 0 var(--accent-color),
    0 0 14px -2px rgba(0, 255, 255, 0.18),
    0 0 28px -6px rgba(0, 255, 255, 0.10);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--text-dim);
  opacity: 0.6;
}

/* =====================================================
   CUSTOM SELECT — dropdown estilizado con la vibra HUD
   Native <select> queda accesible (form-submittable) oculto
   vía inline styles en JS; aquí estilizamos el trigger button
   + panel <ul role="listbox"> + opciones.
   ===================================================== */

.select {
  position: relative;
  width: 100%;
}

/* ---------- Trigger (estado cerrado) ---------- */
.select__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(73, 197, 182, 0.18);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  color: var(--text-main);
  text-align: left;
  outline: none;
  transition:
    border-color var(--dur-base) var(--ease-smooth),
    box-shadow var(--dur-base) var(--ease-smooth);
  -webkit-tap-highlight-color: transparent;
}

.select__trigger:hover,
.select__trigger:focus-visible,
.select__trigger[aria-expanded="true"] {
  border-bottom-color: var(--accent-color);
  box-shadow: 0 1px 0 0 var(--accent-color);
}

/* Glow extra cuando está abierto */
.select__trigger[aria-expanded="true"] {
  text-shadow: 0 0 8px var(--accent-glow);
}

.select__value {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  /* Truncado elegante para textos largos */
}

.select__value:empty::before {
  content: attr(data-placeholder);
  color: var(--text-dim);
  opacity: 0.6;
}

.select__chevron {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  display: inline-flex;
  color: var(--accent-color);
  transition: transform var(--dur-base) var(--ease-out-expo);
}

.select__trigger[aria-expanded="true"] .select__chevron {
  transform: rotate(180deg);
}

/* ---------- Panel (dropdown abierto) ----------
   CRÍTICO: el panel va en `position: fixed` para escapar del stacking
   context que crea `.form-field` al tener `transform: translateY(...)`
   de la animación de entrada con scroll. Con `absolute`, el panel
   quedaba atrapado a z-index effective = 0 dentro del form-field, y
   el header sticky (z=100) lo cubría. Con `fixed`, el panel es
   posicionado por JS contra el viewport y siempre queda encima de
   todo (excepto otros fixed con z-index mayor).

   - JS calcula `top`/`left`/`width`/`max-height` en cada `open()` y
     en `resize` (mientras esté abierto). Nada de `top: calc(100%…)`.
   - `pointer-events: none/auto` controla la interactividad.
   - Sin `scale()` en el transform — combinado con `backdrop-filter`
     hay bugs de hit-testing en algunos navegadores. */
.select__panel {
  position: fixed;
  /* top/left/width/max-height se setean inline en JS al abrir */
  z-index: var(--z-modal);
  margin: 0;
  padding: var(--space-1) 0;
  list-style: none;
  background: rgba(11, 15, 25, 0.92);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--accent-border-strong);
  border-radius: var(--radius-md);
  box-shadow:
    0 0 0 1px rgba(73, 197, 182, 0.06),
    0 16px 48px -10px rgba(0, 0, 0, 0.6),
    0 0 32px -12px var(--accent-glow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transform-origin: top center;
  transition:
    opacity var(--dur-fast) var(--ease-smooth),
    transform var(--dur-base) var(--ease-out-expo),
    visibility 0s linear var(--dur-base);
  max-height: 280px;
  overflow-y: auto;
  overflow-x: hidden;
}

/* Scrollbar glass */
.select__panel::-webkit-scrollbar       { width: 6px; }
.select__panel::-webkit-scrollbar-track  { background: transparent; }
.select__panel::-webkit-scrollbar-thumb {
  background: var(--accent-border-strong);
  border-radius: 3px;
}
.select__panel::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* El panel controla su propio estado: ya no vive como descendiente
   del wrapper (lo movimos a <body> para escapar del containing block
   que crea el `transform` de .form-field). */
.select__panel.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
  /* En abrir: visibility salta inmediatamente (override del delay
     de 300ms del estado base), así el panel es interactivo al toque. */
  transition-delay: 0s;
}

/* Cuando JS posiciona arriba del trigger (no hay viewport debajo),
   invierte el origen del transform para que la animación "caiga"
   desde abajo en lugar de bajar desde arriba. */
.select__panel.has-flipped {
  transform-origin: bottom center;
}

/* ---------- Options ---------- */
.select__option {
  position: relative;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition:
    background var(--dur-fast) var(--ease-smooth),
    color var(--dur-fast) var(--ease-smooth),
    padding-left var(--dur-fast) var(--ease-out-expo);
}

/* Bullet indicator (estilo HUD / side-nav dot) */
.select__option::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: transparent;
  box-shadow: 0 0 0 1px var(--accent-border-strong);
  flex-shrink: 0;
  transition:
    background var(--dur-fast) var(--ease-smooth),
    box-shadow var(--dur-fast) var(--ease-smooth);
}

.select__option:hover,
.select__option.is-active {
  background: rgba(73, 197, 182, 0.08);
  color: var(--accent-color);
  padding-left: calc(var(--space-4) + 4px);
}

.select__option:hover::before,
.select__option.is-active::before {
  background: var(--accent-color);
  box-shadow: 0 0 8px var(--accent-glow);
}

.select__option[aria-selected="true"] {
  color: var(--accent-color);
  background: rgba(73, 197, 182, 0.05);
}

.select__option[aria-selected="true"]::before {
  background: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-glow);
}

.select__option.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
  color: var(--text-dim);
}

.select__option.is-disabled:hover {
  background: transparent;
  color: var(--text-dim);
  padding-left: var(--space-4);
}

/* =====================================================
   SUBMIT BUTTON
   ===================================================== */

.form-actions {
  display: flex;
  justify-content: flex-start;
}

.form-submit {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition:
    background var(--dur-base) var(--ease-smooth),
    color var(--dur-base) var(--ease-smooth),
    box-shadow var(--dur-base) var(--ease-smooth),
    transform var(--dur-fast) var(--ease-spring);
}

.form-submit:hover:not(:disabled) {
  background: var(--accent-color);
  color: var(--bg-primary);
  box-shadow: 0 0 24px rgba(73, 197, 182, 0.4);
  transform: translateY(-2px);
}

.form-submit:active:not(:disabled) {
  transform: translateY(0);
}

.form-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-submit__arrow {
  transition: transform var(--dur-base) var(--ease-out-expo);
}

.form-submit:hover:not(:disabled) .form-submit__arrow {
  transform: translateX(4px);
}

/* =====================================================
   FORM OUTPUT (Terminal-style log)
   ===================================================== */

.form-output {
  min-height: 0;
  max-height: 0;
  overflow: hidden;
  padding: 0 var(--space-4);
  background: rgba(11, 15, 25, 0.8);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-color);
  line-height: 1.6;
  white-space: pre-wrap;
  transition:
    max-height var(--dur-base) var(--ease-smooth),
    padding var(--dur-base) var(--ease-smooth),
    border-color var(--dur-base) var(--ease-smooth);
}

.form-output.is-active {
  min-height: 160px;
  max-height: 320px;
  padding: var(--space-4);
  border-color: var(--accent-border);
  overflow-y: auto;
}

.form-output::before {
  content: "$ ";
  color: var(--accent-color);
  font-weight: 700;
}

.form-output .line-error { color: #ff9a9a; }
.form-output .line-ok    { color: var(--accent-soft); }
.form-output .line-info  { color: var(--text-muted); }

/* =====================================================
   FOOTER
   ===================================================== */

.site-footer {
  position: relative;
  background: linear-gradient(to bottom, transparent, var(--bg-primary) 30%);
  padding-block: var(--space-9) var(--space-6);
  border-top: 1px solid var(--accent-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 2fr;
    gap: var(--space-9);
  }
}

.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: var(--space-2);
  text-shadow: 0 0 12px var(--accent-glow);
}

.footer__brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-color);
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-5);
}

.footer__nav-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__nav-title {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent-color);
  letter-spacing: 0.2em;
  margin-bottom: var(--space-2);
  opacity: 0.7;
}

.footer__nav a {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-smooth);
}

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

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-5);
  border-top: 1px solid var(--accent-border);
  text-align: center;
}

@media (min-width: 640px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copy,
.footer__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  margin: 0;
  letter-spacing: 0.05em;
}

/* =====================================================
   prefers-reduced-motion
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  .form-submit:hover { transform: none; }
}