/* ===== Istho · Chatbot de inventario — estilos basados en ISTHO_DESPACHOS_PRO ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --navy:#1E224D; --navy2:#295B9F;
  --green:#3DAA6E; --green2:#2D8A54;
  --orange:#E84A1E; --red:#D9534F; --yellow:#FFC107;
  --muted:#6B6F8A; --r:10px;
  --bg:url('/assets/fondo_istho.jpg');
}

html,body{height:100%}
body{
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,sans-serif;
  color:#fff; background:var(--navy);
  -webkit-font-smoothing:antialiased;
  height:100vh; height:100dvh;      /* alto exacto del viewport */
  overflow:hidden;                  /* cada vista maneja su propio scroll */
}
.hidden{display:none !important}

/* Fondo de marca compartido (bodega + overlay navy) */
.landing,.chat-view{
  position:relative;
  height:100vh; height:100dvh;      /* alto exacto (incluye barra del navegador móvil) */
  background:var(--bg) center/cover no-repeat fixed;
}
.landing-overlay,.bg-overlay{
  position:absolute;inset:0;background:rgba(15,18,45,.80);z-index:0;
}

/* ============ LANDING ============ */
/* margin:auto en el hijo centra sin cortar el contenido cuando no cabe (permite scroll) */
.landing{display:flex;padding:2rem 1.25rem;overflow-y:auto}
.landing-content{
  position:relative;z-index:1;max-width:620px;width:100%;margin:auto;text-align:center;
  animation:fadeUp .6s ease both;
}
.landing-logo{width:180px;max-width:60vw;height:auto;margin-bottom:1.6rem;
  filter:drop-shadow(0 6px 24px rgba(0,0,0,.45));
  background:#fff;padding:14px 20px;border-radius:16px}
.landing-title{
  font-size:clamp(28px,6vw,48px);font-weight:900;letter-spacing:-1px;
  line-height:1.05;margin-bottom:.9rem;
  background:linear-gradient(90deg,#fff 0%,#bfe6cf 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.landing-sub{
  font-size:clamp(14px,2.6vw,17px);color:rgba(255,255,255,.72);
  line-height:1.55;max-width:520px;margin:0 auto 2rem;
}
.landing-sub strong{color:var(--green)}

.landing-features{
  display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:2.2rem;
}
.feat{
  display:flex;align-items:center;gap:10px;text-align:left;
  background:rgba(255,255,255,.08);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:12px 16px;
}
.feat-ico{font-size:22px;line-height:1}
.feat-txt{display:flex;flex-direction:column}
.feat-txt b{font-size:13px;font-weight:700}
.feat-txt span{font-size:11px;color:rgba(255,255,255,.5)}

.cta{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);
  color:#fff;border:none;border-radius:12px;
  padding:15px 34px;font-size:16px;font-weight:800;font-family:inherit;
  box-shadow:0 10px 30px rgba(61,170,110,.4);transition:transform .15s,box-shadow .15s;
}
.cta:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(61,170,110,.55)}
.cta:active{transform:translateY(0)}
.cta svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2.4;
  stroke-linecap:round;stroke-linejoin:round}
.landing-foot{margin-top:1.8rem;font-size:11px;color:rgba(255,255,255,.4);letter-spacing:.3px}
.landing-foot b{color:rgba(255,255,255,.65)}

/* ============ CHAT ============ */
.chat-view{display:flex;flex-direction:column;overflow:hidden}

.topbar{
  position:relative;z-index:10;flex-shrink:0;
  background:#fff;height:64px;display:grid;
  grid-template-columns:auto 1fr auto;align-items:center;gap:10px;
  padding:0 clamp(12px,3vw,24px);box-shadow:0 2px 16px rgba(30,34,77,.18);
}
.topbar::before{content:'';position:absolute;top:0;left:0;right:0;height:5px;background:var(--navy)}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px}
.topbar-right{justify-content:flex-end}
.topbar-logo{height:30px;width:auto}
.topbar-center{text-align:center;min-width:0}
.topbar-title{font-size:15px;font-weight:800;color:var(--navy);letter-spacing:-.2px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-sub{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}

.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:9px;cursor:pointer;
  background:rgba(30,34,77,.06);border:1px solid rgba(30,34,77,.1);transition:background .15s;
}
.icon-btn:hover{background:rgba(30,34,77,.12)}
.icon-btn svg{width:18px;height:18px;stroke:var(--navy);fill:none;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.estado-dot{width:10px;height:10px;border-radius:50%;background:var(--muted);flex-shrink:0}
.estado-dot.ok{background:var(--green);box-shadow:0 0 0 3px rgba(61,170,110,.25)}
.estado-dot.err{background:var(--red);box-shadow:0 0 0 3px rgba(217,83,79,.25)}

.chat-main{
  position:relative;z-index:1;flex:1;display:flex;flex-direction:column;
  width:100%;max-width:860px;margin:0 auto;min-height:0;
  padding:16px clamp(10px,3vw,20px) calc(12px + env(safe-area-inset-bottom,0px));
}

.mensajes{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:14px;
  padding:4px 2px 8px;scroll-behavior:smooth}

.msg{display:flex;gap:10px;max-width:92%;animation:fadeUp .25s ease both}
.msg.user{align-self:flex-end;flex-direction:row-reverse}
.msg-avatar{
  width:32px;height:32px;border-radius:9px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:15px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15)}
.msg.assistant .msg-avatar{background:rgba(61,170,110,.18);border-color:rgba(61,170,110,.4)}
.msg-bubble{
  background:rgba(255,255,255,.10);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.16);border-radius:14px;
  padding:11px 15px;font-size:14px;line-height:1.55;color:#fff;
  box-shadow:0 4px 20px rgba(0,0,0,.22);word-wrap:break-word;overflow-wrap:anywhere}
.msg.user .msg-bubble{
  background:rgba(61,170,110,.22);border-color:rgba(61,170,110,.4);border-bottom-right-radius:5px}
.msg.assistant .msg-bubble{border-bottom-left-radius:5px}

/* Markdown dentro de las burbujas */
.msg-bubble p{margin:0 0 .5em}.msg-bubble p:last-child{margin-bottom:0}
.msg-bubble strong{color:#fff;font-weight:800}
.msg-bubble ul,.msg-bubble ol{margin:.3em 0 .5em 1.2em}
.msg-bubble code{background:rgba(0,0,0,.3);padding:1px 5px;border-radius:4px;font-size:12px}
.msg-bubble table{width:100%;border-collapse:collapse;font-size:12px;margin:.4em 0;
  background:rgba(0,0,0,.15);border-radius:8px;overflow:hidden}
.msg-bubble th{background:rgba(30,34,77,.6);text-align:left;padding:6px 9px;
  font-size:10px;text-transform:uppercase;letter-spacing:.4px;color:rgba(255,255,255,.7)}
.msg-bubble td{padding:6px 9px;border-top:1px solid rgba(255,255,255,.07)}

/* Gráficos (ECharts) dentro de la burbuja */
.chart-box{
  position:relative;
  width:min(680px,74vw);height:320px;margin-top:12px;
  background:rgba(15,18,45,.35);border:1px solid rgba(255,255,255,.12);
  border-radius:12px;padding:6px;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.chart-error{padding:14px;font-size:12px;color:var(--yellow)}
@media (max-width:640px){ .chart-box{width:82vw;height:270px} }

/* Botón de descarga del gráfico (esquina superior derecha) */
.chart-dl{
  position:absolute;top:10px;right:10px;z-index:3;
  width:30px;height:30px;border-radius:8px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.75);transition:all .15s;backdrop-filter:blur(6px)}
.chart-dl:hover{background:rgba(61,170,110,.28);border-color:var(--green);color:#fff}

/* Barra de acciones de cada respuesta (copiar / descargar) */
.msg-actions{display:flex;gap:8px;margin-top:10px;padding-top:9px;
  border-top:1px solid rgba(255,255,255,.08)}
.act-btn{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-family:inherit;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.8);border-radius:8px;padding:6px 11px;font-size:11.5px;
  font-weight:600;transition:all .15s}
.act-btn:hover{background:rgba(61,170,110,.2);border-color:var(--green);color:#fff}
.act-ico{font-size:13px;line-height:1}

.sql-toggle{margin-top:8px;font-size:11px;color:var(--green);cursor:pointer;
  display:inline-flex;align-items:center;gap:5px;user-select:none;font-weight:600}
.sql-box{margin-top:6px;background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.1);
  border-radius:8px;padding:9px 11px;font-family:Consolas,monospace;font-size:11px;
  color:#bfe6cf;white-space:pre-wrap;word-break:break-word}

/* Indicador de "escribiendo" */
.typing{display:flex;gap:4px;align-items:center;padding:4px 2px}
.typing span{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.6);
  animation:blink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}

.sugerencias{display:flex;gap:8px;overflow-x:auto;padding:8px 2px;flex-shrink:0;
  -webkit-overflow-scrolling:touch}
.chip{white-space:nowrap;cursor:pointer;font-family:inherit;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.85);border-radius:99px;padding:8px 14px;font-size:12px;
  transition:background .15s,border-color .15s;flex-shrink:0}
.chip:hover{background:rgba(61,170,110,.2);border-color:var(--green);color:#fff}

.composer{display:flex;align-items:flex-end;gap:10px;flex-shrink:0;
  background:rgba(255,255,255,.10);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.18);border-radius:16px;
  padding:8px 8px 8px 16px;box-shadow:0 6px 24px rgba(0,0,0,.25);margin-bottom:6px}
.composer-input{flex:1;background:transparent;border:none;outline:none;resize:none;
  color:#fff;font-family:inherit;font-size:14px;line-height:1.4;max-height:140px;
  padding:9px 0}
.composer-input::placeholder{color:rgba(255,255,255,.4)}
.send-btn{flex-shrink:0;width:42px;height:42px;border-radius:12px;cursor:pointer;border:none;
  background:linear-gradient(135deg,var(--green) 0%,var(--green2) 100%);
  display:flex;align-items:center;justify-content:center;transition:transform .12s,opacity .12s}
.send-btn:hover{transform:scale(1.05)}
.send-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.send-btn svg{width:19px;height:19px;stroke:#fff;fill:none;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}

/* Scrollbars */
.mensajes::-webkit-scrollbar,.sugerencias::-webkit-scrollbar{width:6px;height:6px}
.mensajes::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:6px}

@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes blink{0%,60%,100%{opacity:.3}30%{opacity:1}}

/* ============ RESPONSIVE (móvil) ============ */
@media (max-width:640px){
  /* El fondo fijo falla en iOS: se ancla al scroll */
  .landing,.chat-view{background-attachment:scroll}

  /* --- Landing compacta, pensada para caber en una sola pantalla --- */
  .landing{padding:4vh 1.1rem}
  .landing-logo{width:132px;margin-bottom:1.1rem;padding:10px 14px}
  .landing-title{margin-bottom:.55rem}
  .landing-sub{margin-bottom:1.3rem;font-size:14px;line-height:1.5}
  .landing-features{gap:8px;margin-bottom:1.4rem}
  .feat{padding:9px 13px;flex:1 1 100%;max-width:300px}
  .cta{width:100%;max-width:340px;justify-content:center;padding:14px 24px}
  .landing-foot{margin-top:1.2rem}

  /* --- Chat --- */
  .topbar{height:56px}
  .topbar-logo{height:26px}
  .topbar-sub{display:none}
  .chat-main{padding:10px 10px calc(8px + env(safe-area-inset-bottom,0px))}
  .mensajes{gap:11px;padding:2px 0 6px}
  .msg{max-width:100%;gap:8px}
  .msg-avatar{display:none}          /* más ancho útil para texto y gráficos */
  .msg-bubble{font-size:13.5px;padding:10px 13px}
  .chart-box{width:calc(100vw - 50px);height:250px}
  .sugerencias{padding:6px 0}
  .chip{padding:7px 12px;font-size:11.5px}
  .composer{border-radius:14px;padding:6px 6px 6px 14px}
  .composer-input{font-size:15px}   /* 16px evita el zoom-in de iOS al enfocar */
  .send-btn{width:40px;height:40px}
  .msg-actions{gap:6px}
  .act-btn{padding:6px 10px;font-size:11px}
}
@media (max-width:360px){
  .landing-title{font-size:26px}
  .chart-box{height:230px}
}