/* ========== RESET BÁSICO ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: #02040b;
  color: #f7f9ff;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Canvas de fondo */
#bgCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  display: block;
}

/* Estrellas suaves por encima del canvas */
body::after {
  content: "";
  position: fixed;
  inset: -50px;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.8), transparent 55%),
    radial-gradient(1px 1px at 80% 30%, rgba(255, 255, 255, 0.5), transparent 55%),
    radial-gradient(1px 1px at 30% 80%, rgba(255, 255, 255, 0.7), transparent 55%),
    radial-gradient(1px 1px at 60% 60%, rgba(255, 255, 255, 0.6), transparent 55%);
  animation: drift-stars 80s linear infinite alternate;
  z-index: -1;
}

@keyframes drift-stars {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-40px, 40px, 0); }
}

/* ========== LAYOUT GENERAL ========== */

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========== HEADER ========== */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.75rem 3vw;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at 50% -60%, rgba(19, 62, 103, 0.75), rgba(3, 9, 24, 0.94));
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.75);
}

/* Marca */

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.brand-orb {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, #ffe5b4 0, #ff9a3c 35%, #f85c70 70%, #0a1b3b 100%);
  box-shadow:
    0 0 20px rgba(248, 138, 63, 0.9),
    0 0 45px rgba(0, 197, 255, 0.8);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.95rem;
}

.brand-tagline {
  font-size: 0.7rem;
  opacity: 0.8;
}

/* Nav principal */

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex: 1;
}

.primary-nav a {
  font-size: 0.82rem;
  text-decoration: none;
  color: #e0e6ff;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  opacity: 0.85;
  white-space: nowrap;
  transition: background 0.2s ease, opacity 0.2s ease, transform 0.15s ease;
}

.primary-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
  opacity: 1;
  transform: translateY(-1px);
}

.nav-contact {
  font-weight: 600;
}

/* Zona derecha header */

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.beta-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffddb5;
  white-space: nowrap;
}

.lang-switch {
  display: flex;
  gap: 0.25rem;
}

.lang-btn {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(2, 12, 28, 0.7);
  color: #f6f7ff;
  font-size: 0.7rem;
  padding: 0.28rem 0.6rem;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease,
    border-color 0.2s ease;
}

.lang-btn.active {
  background: radial-gradient(circle at 30% 20%, #ffe7c1, #ff9b42 40%, #2ec3ff 100%);
  color: #041520;
  box-shadow:
    0 0 16px rgba(255, 178, 75, 0.9),
    0 0 30px rgba(60, 220, 255, 0.65);
  border-color: transparent;
  transform: translateY(-1px);
}

/* ========== MAIN ========== */

.main-section {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 2.5rem 3vw 3.5rem;
}

.chat-section {
  width: 100%;
  max-width: 1200px;
}

/* Tarjeta principal */

.chat-card {
  background: radial-gradient(circle at 20% 0%, #1b3352, #060f1e 55%, #020713 100%);
  border-radius: 30px;
  padding: 1.75rem;
  box-shadow:
    0 38px 90px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(127, 178, 255, 0.28);
  backdrop-filter: blur(18px);
}

.chat-card-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 1.75rem;
}

/* Columna izquierda */

.chat-left {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.agent-title {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.agent-subtitle {
  margin: 0;
  font-size: 0.85rem;
  opacity: 0.85;
}

.bubble {
  margin-top: 0.8rem;
  padding: 0.75rem 0.9rem;
  border-radius: 14px;
  border: 1px solid rgba(164, 204, 255, 0.35);
  background: radial-gradient(circle at 0% 0%, rgba(145, 213, 255, 0.18), #040918);
  font-size: 0.8rem;
  color: #ecf4ff;
}

/* Textarea y botón */

.chat-form {
  margin-top: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chat-textarea-wrapper {
  border-radius: 18px;
  padding: 0.35rem;
  background: radial-gradient(circle at 0 0, rgba(168, 212, 255, 0.28), #020715);
  border: 1px solid rgba(126, 187, 255, 0.35);
}

.chat-textarea {
  width: 100%;
  resize: vertical;
  border-radius: 14px;
  border: none;
  background: rgba(1, 8, 20, 0.88);
  padding: 0.9rem 1rem;
  color: #f5f8ff;
  font-size: 0.86rem;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.4);
}

.chat-textarea::placeholder {
  color: rgba(197, 210, 240, 0.8);
}

/* Fila del botón */

.chat-input-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.chat-input-spacer {
  flex: 1;
}

.btn-pill {
  border-radius: 999px;
  padding: 0.35rem 1.45rem;
  border: none;
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 600;
  color: #041520;
  background: radial-gradient(circle at 0% 0%, #ffeac7, #ff9741 50%, #2ebaff 105%);
  box-shadow:
    0 0 20px rgba(255, 184, 89, 0.95),
    0 0 40px rgba(46, 186, 255, 0.9);
  transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.15s ease;
}

.btn-pill:hover {
  filter: brightness(1.03);
  transform: translateY(-1px);
}

.btn-pill:active {
  transform: translateY(0);
  box-shadow:
    0 0 10px rgba(255, 184, 89, 0.75),
    0 0 22px rgba(46, 186, 255, 0.7);
}

/* Columna derecha */

.chat-right {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.agent-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  background: rgba(10, 45, 30, 0.88);
  color: #e2ffeb;
  font-size: 0.75rem;
  align-self: flex-start;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #d5ffb4, #0dd15f);
  box-shadow: 0 0 10px rgba(35, 234, 116, 0.9);
}

.info-block {
  font-size: 0.86rem;
}

.info-block h2,
.info-block h3 {
  margin: 0 0 0.3rem;
  font-size: 0.95rem;
}

.info-block p {
  margin: 0 0 0.35rem;
  opacity: 0.9;
}

.info-block ul {
  margin: 0;
  padding-left: 1.1rem;
  opacity: 0.9;
}

.info-block li {
  margin-bottom: 0.2rem;
}

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

.site-footer {
  padding: 1.6rem 3vw 1.4rem;
  font-size: 0.8rem;
  color: rgba(205, 215, 242, 0.9);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  color: rgba(222, 233, 255, 0.95);
  text-decoration: none;
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.85);
  transition: width 0.18s ease;
}

.footer-links a:hover::after {
  width: 100%;
}

/* ========== RESPONSIVE ========== */

@media (max-width: 1024px) {
  .site-header {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.5rem;
  }

  .brand { order: 1; }
  .primary-nav { order: 3; }
  .header-right { order: 2; }

  .chat-card-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 0.6rem 4vw;
  }

  .brand-name {
    font-size: 0.9rem;
  }

  .brand-tagline {
    font-size: 0.64rem;
  }

  .primary-nav a {
    font-size: 0.78rem;
  }

  .beta-label {
    font-size: 0.63rem;
  }

  .chat-card {
    border-radius: 22px;
    padding: 1.25rem;
    margin: 0 2vw;
  }

  .agent-title {
    font-size: 1.05rem;
    letter-spacing: 0.16em;
  }

  .agent-subtitle {
    font-size: 0.8rem;
  }

  .bubble {
    font-size: 0.78rem;
  }

  .chat-textarea {
    font-size: 0.84rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .site-header {
    flex-direction: column;
    align-items: center;
  }

  .brand {
    justify-content: center;
  }

  .primary-nav {
    justify-content: center;
  }

  .btn-pill {
    padding-inline: 1.35rem;
  }
}
// assets/chat.js
//
// Control del chat de RALPHI AI �� INNERSPARK
// Funciona con el formulario #chat-form, textarea #chat-input
// contenedor de mensajes #chat-output y estado #agent-status

document.addEventListener("DOMContentLoaded", function () {
  var form = document.getElementById("chat-form");
  var input = document.getElementById("chat-input");
  var chatWindow = document.getElementById("chat-output");
  var statusEl = document.getElementById("agent-status");
  var sendBtn = document.getElementById("chat-send");

  // Si algo cr��tico no existe, no hacemos nada
  if (!form || !input || !chatWindow) {
    console.error("No se encontraron los elementos del chat en el DOM.");
    return;
  }

  function setStatus(text) {
    if (!statusEl) return;
    statusEl.textContent = text;
  }

  function appendMessage(text, who) {
    // who: "user" | "bot"
    var wrapper = document.createElement("div");
    wrapper.className = "chat-message " + (who === "user" ? "user" : "bot");

    var bubble = document.createElement("div");
    bubble.className = "chat-bubble";

    var label = document.createElement("div");
    label.className = "chat-label";
    label.textContent = who === "user" ? "T��" : "Ralphi AI";

    var body = document.createElement("p");
    body.className = "chat-text";
    body.textContent = text;

    bubble.appendChild(label);
    bubble.appendChild(body);
    wrapper.appendChild(bubble);
    chatWindow.appendChild(wrapper);

    // Desplazar al final
    chatWindow.scrollTop = chatWindow.scrollHeight;
  }

  function setLoading(isLoading) {
    if (sendBtn) {
      sendBtn.disabled = isLoading;
      sendBtn.textContent = isLoading ? "��" : sendBtn.dataset.labelEs || "Enviar";
    }
    input.disabled = isLoading;
  }

  // Enviar mensaje
  form.addEventListener("submit", function (event) {
    event.preventDefault();

    var text = (input.value || "").trim();
    if (!text) return;

    appendMessage(text, "user");
    input.value = "";
    setStatus("Escribiendo��");
    setLoading(true);

    // Llamada al backend PHP
    fetch("assets/chat.php", {
      method: "POST",
      headers: {
        "Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
      },
      body: "message=" + encodeURIComponent(text),
    })
      .then(function (response) {
        if (!response.ok) {
          throw new Error("HTTP " + response.status);
        }
        return response.json();
      })
      .then(function (data) {
        if (!data || !data.reply) {
          appendMessage(
            "No pude obtener una respuesta clara del servidor. Intenta de nuevo m��s tarde.",
            "bot"
          );
          setStatus("Error de servidor");
          return;
        }

        appendMessage(data.reply, "bot");
        setStatus("�� AGENTE ACTIVO");
      })
      .catch(function (error) {
        console.error("Error en la solicitud:", error);
        appendMessage(
          "No pude conectar con el servidor en este momento. Intenta nuevamente en unos segundos.",
          "bot"
        );
        setStatus("Error de conexi��n");
      })
      .finally(function () {
        setLoading(false);
        input.focus();
      });
  });

  // ENTER = enviar, SHIFT+ENTER = salto de l��nea
  input.addEventListener("keydown", function (e) {
    if (e.key === "Enter" && !e.shiftKey) {
      e.preventDefault();
      form.dispatchEvent(new Event("submit", { cancelable: true }));
    }
  });

  // Estado inicial
  setStatus("�� AGENTE ACTIVO");
});