/* ============================================================================
   Jesus Guerra — Portafolio con interfaz de chat de IA
   Estética: SaaS premium mate (Linear / Vercel / Notion AI). Glassmorphism sutil,
   acento lavanda apagado, temas claro/oscuro.
   ============================================================================ */

:root {
  /* Oscuro (por defecto) */
  --bg: #0f1116;
  --panel: #0b0d11;
  --card: #161922;
  --glass: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text: #e8eaf0;
  --text-2: #c3c8d4;
  --muted: #8a90a0;

  --accent: #8b8ff5;
  --accent-weak: rgba(139, 143, 245, 0.14);
  --on-accent: #ffffff;

  --user-bubble: #2b2f52;
  --user-text: #eceefb;
  --bot-bubble: rgba(255, 255, 255, 0.035);
  --online: #5fbf8f;

  --shadow: 0 10px 34px rgba(0, 0, 0, 0.30);
  --pad: clamp(22px, 4vw, 52px);
  --font: "Inter", -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
}

[data-theme="light"] {
  --bg: #f5f6f9;
  --panel: #eef0f4;
  --card: #ffffff;
  --glass: rgba(20, 22, 40, 0.035);
  --border: rgba(20, 22, 40, 0.10);
  --border-strong: rgba(20, 22, 40, 0.16);

  --text: #191c23;
  --text-2: #3d434f;
  --muted: #6b7280;

  --accent: #5b60e0;
  --accent-weak: rgba(91, 96, 224, 0.10);
  --on-accent: #ffffff;

  --user-bubble: #e6e7fb;
  --user-text: #23264a;
  --bot-bubble: #ffffff;
  --online: #2fa06a;

  --shadow: 0 10px 30px rgba(20, 20, 40, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  height: 100dvh;
  overflow: hidden;
}

.ico { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* Transición suave al cambiar de tema (claro/oscuro) */
body, .nav, .nav-logo, .chat, .mobile-bar, .mb-avatar, .badge, .hero, .hero-sub,
.bubble, .msg-ava, .disclaimer, .profile, .card, .photo, .p-name, .p-role, .p-loc,
.stat, .s-label, .s-val, .card-title, .tag, .cta-title, .cta-q, .copyright,
.theme-label, .lang-mini {
  transition: background-color 0.32s ease, color 0.32s ease,
    border-color 0.32s ease, box-shadow 0.32s ease;
}

/* Entrada suave del sitio */
.app { animation: appIn 0.45s ease both; }
@keyframes appIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Estructura de 3 columnas -------------------------------------- */
.app {
  height: 100dvh;
  width: 100%;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr) 340px;
  background: var(--bg);
}

/* ============================ NAV IZQUIERDA =============================== */
.nav {
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
}
.nav-logo {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--accent-weak);
  color: var(--accent);
  display: grid; place-items: center;
  font-weight: 700; font-size: 15px;
  border: 1px solid var(--border);
  margin-bottom: 28px;
}
.nav-menu { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  width: 100%; text-align: left;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-2);
  font-size: 14px; font-family: inherit;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.nav-item .ico { width: 18px; height: 18px; opacity: 0.85; transition: transform 0.18s ease; }
.nav-item:hover { background: var(--glass); color: var(--text); transform: translateX(3px); }
.nav-item:hover .ico { transform: scale(1.08); }
.nav-item:active { transform: translateX(1px) scale(0.99); }
.nav-item.active { background: var(--glass); color: var(--text); border-color: var(--border); }

.nav-foot { display: flex; flex-direction: column; gap: 16px; }
.model-row { display: flex; flex-direction: column; gap: 7px; }
.model-row label { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }

.model-dropdown { position: relative; }
.model-trigger {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: 9px;
  padding: 9px 11px; font-size: 13px; font-family: inherit; cursor: pointer;
  transition: border-color 0.15s ease;
}
.model-trigger:hover { border-color: var(--accent); }
.model-trigger .chev { width: 15px; height: 15px; color: var(--muted); transition: transform 0.2s ease; }
.model-dropdown.open .model-trigger { border-color: var(--accent); }
.model-dropdown.open .model-trigger .chev { transform: rotate(180deg); }

.model-menu {
  position: absolute; left: 0; right: 0; bottom: calc(100% + 6px);
  list-style: none; margin: 0; padding: 5px;
  background: var(--card); border: 1px solid var(--border); border-radius: 11px;
  box-shadow: var(--shadow);
  opacity: 0; transform: translateY(6px); pointer-events: none;
  transition: opacity 0.16s ease, transform 0.16s ease;
  z-index: 60;
}
.model-dropdown.open .model-menu { opacity: 1; transform: translateY(0); pointer-events: auto; }
.model-opt {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 10px; border-radius: 8px;
  font-size: 13px; color: var(--text-2); cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease;
}
.model-opt:hover { background: var(--glass); color: var(--text); }
.model-opt.selected { color: var(--accent); }
.model-opt .check { width: 15px; height: 15px; opacity: 0; }
.model-opt.selected .check { opacity: 1; }
.theme-row { display: flex; align-items: center; justify-content: space-between; }
.theme-label { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; }
.theme-label .ico { width: 16px; height: 16px; }

.theme-switch {
  width: 42px; height: 24px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--glass);
  position: relative; cursor: pointer; padding: 0;
  transition: background 0.2s;
}
.theme-switch .knob {
  position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--muted);
  transition: transform 0.2s, background 0.2s;
}
.theme-switch.is-light .knob { transform: translateX(18px); background: var(--accent); }

.socials { display: flex; align-items: center; gap: 14px; }
.socials a { color: var(--muted); display: grid; place-items: center; transition: color 0.16s ease, transform 0.16s ease; }
.socials a:hover { color: var(--accent); transform: translateY(-2px); }
.socials .ico { width: 18px; height: 18px; }
.lang-mini {
  background: transparent; border: 1px solid var(--border);
  border-radius: 8px; padding: 5px 9px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.3px;
  color: var(--muted); font-family: inherit; cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.lang-mini:hover { color: var(--text); border-color: var(--muted); }
.copyright { font-size: 11px; color: var(--muted); opacity: 0.7; }

/* ============================ CHAT (CENTRO) ============================== */
.chat {
  display: flex; flex-direction: column;
  min-width: 0; min-height: 0;
  padding: 0 var(--pad);
  background: var(--bg);
}
.mobile-bar { display: none; }

.chat-scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 34px 0 10px; scroll-behavior: smooth; }
.chat-scroll::-webkit-scrollbar { width: 9px; }
.chat-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--glass);
  color: var(--text-2);
  font-size: 12.5px;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--online); flex: 0 0 auto; transition: background 0.2s ease; }
.badge-dot.offline { background: #c76a5c; }

.hero { font-size: clamp(26px, 3vw, 34px); font-weight: 600; margin-top: 20px; letter-spacing: -0.02em; }
.hero .accent { color: var(--accent); }
.hero-sub { color: var(--muted); font-size: 16px; margin-top: 8px; }

.quick-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-2);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px; font-family: inherit;
  cursor: pointer; white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.chip:hover { border-color: var(--accent); color: var(--text); background: var(--glass); transform: translateY(-2px); }
.chip:active { transform: translateY(0) scale(0.98); }

/* Mensajes */
.messages { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.row { display: flex; gap: 10px; width: 100%; }
.row.user { justify-content: flex-end; }
.msg-ava {
  width: 30px; height: 30px; flex: 0 0 auto;
  border-radius: 9px;
  background: var(--accent-weak); color: var(--accent);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  margin-top: 2px;
}
.msg-ava .ico { width: 15px; height: 15px; }
.bubble {
  max-width: 72%;
  padding: 13px 16px;
  border-radius: 16px;
  font-size: 14.5px; line-height: 1.55;
  white-space: pre-wrap; word-wrap: break-word;
  animation: rise 0.2s ease;
}
.row.bot .bubble { background: var(--bot-bubble); border: 1px solid var(--border); border-top-left-radius: 5px; color: var(--text); }
.row.user .bubble { background: var(--user-bubble); color: var(--user-text); border-top-right-radius: 5px; }
.bubble a { color: var(--accent); text-underline-offset: 2px; }
.bubble strong { font-weight: 600; color: var(--text); }
.bubble code {
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 5px; padding: 1px 6px; font-size: 0.88em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
@keyframes rise { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ---- Respuestas enriquecidas (chips FAQ) ---- */
.ans { display: flex; flex-direction: column; gap: 14px; white-space: normal; }
.ans-p { line-height: 1.55; }
.ans-group { display: flex; flex-direction: column; gap: 8px; }
.ans-cat {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); font-weight: 600;
}
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill {
  background: var(--accent-weak); color: var(--accent);
  border-radius: 7px; padding: 4px 10px; font-size: 12px; font-weight: 500;
  transition: transform 0.15s ease;
}
.pill:hover { transform: translateY(-1px); }
.ans-item { border-left: 2px solid var(--accent); padding: 1px 0 1px 12px; }
.ai-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.ai-title { font-weight: 600; color: var(--text); font-size: 14px; }
.ai-badge {
  font-size: 11px; color: var(--muted);
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 8px; white-space: nowrap;
}
.ai-sub { color: var(--accent); font-size: 12.5px; margin-top: 2px; }
.ai-desc { color: var(--text-2); font-size: 13px; line-height: 1.5; margin-top: 4px; }

/* Tarjetas de contacto clickables */
a.contact-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--glass);
  color: var(--text); text-decoration: none;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
a.contact-row:hover { transform: translateY(-2px); border-color: var(--accent); }
.cr-ico {
  width: 34px; height: 34px; flex: 0 0 auto;
  border-radius: 9px;
  background: var(--accent-weak); color: var(--accent);
  display: grid; place-items: center;
}
.cr-ico .ico { width: 17px; height: 17px; }
.cr-text { display: flex; flex-direction: column; line-height: 1.25; }
.cr-label { font-size: 11px; color: var(--muted); }
.cr-val { font-size: 13.5px; color: var(--text); font-weight: 500; }

.typing { display: inline-flex; gap: 5px; align-items: center; padding: 3px 2px; }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: blink 1.3s infinite ease-in-out; }
.typing span:nth-child(2) { animation-delay: 0.18s; }
.typing span:nth-child(3) { animation-delay: 0.36s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.3; } 40% { opacity: 0.9; } }

.quick-row--foot { margin: 8px 0 0; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; }
.quick-row--foot::-webkit-scrollbar { height: 0; }
.quick-row--foot .chip { flex: 0 0 auto; }

.composer { display: flex; gap: 12px; align-items: center; padding: 16px 0 6px; }
.input {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 15px 18px;
  color: var(--text);
  font-size: 14.5px; font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-weak); }
.input::placeholder { color: var(--muted); }
.input:disabled { opacity: 0.55; }
.send {
  width: 46px; height: 46px; flex: 0 0 auto;
  border: none; border-radius: 12px;
  background: var(--accent); color: var(--on-accent);
  display: grid; place-items: center; cursor: pointer;
  transition: filter 0.15s ease, opacity 0.15s ease, transform 0.15s ease;
}
.send:hover { filter: brightness(1.08); transform: scale(1.06); }
.send:active { transform: scale(0.94); }
.send:disabled { opacity: 0.5; cursor: default; transform: none; }
.send .ico, .send svg { transition: transform 0.2s ease; }
.send:hover svg { transform: translateX(1px); }

.disclaimer { color: var(--muted); font-size: 12px; text-align: center; padding: 6px 0 16px; opacity: 0.8; }

/* ============================ PERFIL (DERECHA) =========================== */
.profile {
  border-left: 1px solid var(--border);
  padding: 22px 20px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 16px;
}
.profile::-webkit-scrollbar { width: 8px; }
.profile::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
.profile-card { text-align: center; }
.photo {
  width: 92px; height: 92px; border-radius: 50%;
  margin: 2px auto 14px;
  display: block;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: 0 0 0 4px var(--accent-weak);
}
.p-name { font-size: 19px; font-weight: 600; }
.p-role { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.p-loc { display: flex; align-items: center; justify-content: center; gap: 6px; color: var(--muted); font-size: 13px; margin-top: 12px; }
.p-loc .ico { width: 15px; height: 15px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 11px; padding: 11px 16px;
  font-size: 13.5px; font-weight: 500; font-family: inherit;
  cursor: pointer; text-decoration: none;
  transition: filter 0.16s ease, border-color 0.16s ease, color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.99); }
.btn-accent:hover { box-shadow: 0 6px 20px var(--accent-weak); }
.btn .ico { width: 16px; height: 16px; }
.btn-ghost { margin-top: 16px; width: 100%; background: var(--glass); border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-accent { margin-top: 14px; width: 100%; background: var(--accent); color: var(--on-accent); border: none; }
.btn-accent:hover { filter: brightness(1.08); }

.stats-card { display: flex; flex-direction: column; gap: 16px; }
.stat { display: flex; align-items: center; gap: 12px; }
.stat .ico { width: 20px; height: 20px; color: var(--accent); flex: 0 0 auto; }
.s-label { font-size: 12.5px; color: var(--muted); }
.s-val { font-size: 15px; font-weight: 600; color: var(--text); margin-top: 1px; }

.card-title { font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  background: var(--glass); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 11px; font-size: 12px; color: var(--text-2);
  transition: transform 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}
.tag:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--text); }

.cta-title { display: flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: var(--text); }
.cta-q { color: var(--muted); font-size: 13px; margin-top: 8px; }

/* ============================ RESPONSIVE ================================= */
.drawer-backdrop { display: none; }

@media (max-width: 1080px) {
  .app { grid-template-columns: 1fr; }

  /* Nav y perfil se vuelven paneles deslizables (off-canvas) */
  .nav, .profile {
    position: fixed; top: 0; height: 100dvh; z-index: 50;
    background: var(--panel);
    transition: transform 0.28s ease, box-shadow 0.28s ease;
  }
  .nav { left: 0; width: min(284px, 84vw); transform: translateX(-100%); }
  .profile {
    right: 0; width: min(332px, 88vw); transform: translateX(100%);
    border-left: 1px solid var(--border); border-right: none;
  }
  .app.nav-open .nav { transform: translateX(0); box-shadow: 0 0 60px rgba(0,0,0,0.5); }
  .app.profile-open .profile { transform: translateX(0); box-shadow: 0 0 60px rgba(0,0,0,0.5); }

  .drawer-backdrop {
    display: block; position: fixed; inset: 0; z-index: 40;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0; pointer-events: none; transition: opacity 0.28s ease;
  }
  .app.nav-open .drawer-backdrop,
  .app.profile-open .drawer-backdrop { opacity: 1; pointer-events: auto; }

  /* Barra superior móvil */
  .mobile-bar {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 14px; border-bottom: 1px solid var(--border); background: var(--panel);
  }
  .mb-btn {
    width: 38px; height: 38px; flex: 0 0 auto;
    display: grid; place-items: center;
    background: transparent; border: 1px solid var(--border); border-radius: 9px;
    color: var(--text-2); cursor: pointer;
    transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
  }
  .mb-btn:hover { color: var(--text); border-color: var(--accent); }
  .mb-btn:active { transform: scale(0.94); }
  .mb-btn .ico { width: 19px; height: 19px; }
  .mb-brand { flex: 1; display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; }
  .mb-avatar { width: 32px; height: 32px; border-radius: 9px; background: var(--accent-weak); color: var(--accent); display: grid; place-items: center; font-size: 12px; font-weight: 700; }

  .chat { padding: 0 12px; }
  .chat-scroll { padding-top: 16px; }
  .hero { font-size: clamp(22px, 5vw, 30px); }
  .hero-sub { font-size: 14.5px; }
  .quick-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; }
  .quick-row::-webkit-scrollbar { height: 0; }
  .quick-row .chip { flex: 0 0 auto; }
  .bubble { max-width: 90%; }
}