:root{
  --bg:var(--theme-bg);
  --panel:var(--theme-panel);
  --panel2:var(--theme-panel-2);
  --text:var(--theme-text);
  --muted:var(--theme-muted);
  --accent:var(--theme-accent);
  --stroke:var(--theme-border);
  --stroke2:var(--theme-border);
  --input-bg:var(--theme-input-bg);
  --input-bg2:var(--theme-input-bg-2);
  --danger:var(--theme-danger);
  --button-bg:var(--theme-button-bg);
  --button-hover:var(--theme-button-hover);
  --button-text:var(--theme-button-text);
  --button-border:var(--theme-button-border);
  --tab-active-bg:var(--theme-tab-bg);
  --tab-active-text:var(--theme-tab-text);
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
}

a{ color: var(--theme-link); text-decoration:none; }
 a:hover{ text-decoration:underline; }

/* Global form controls (dark theme, high contrast) */
input, select, textarea{
  font: inherit;
  color: var(--text);
}
input:not([type="checkbox"]):not([type="radio"]),
select,
textarea{
  background: var(--input-bg);
  border:1px solid var(--stroke);
  border-radius:12px;
  padding:10px 12px;
  outline:none;
}
input::placeholder, textarea::placeholder{
  color: rgba(159,177,198,0.75);
}
select{
  appearance:none;
  background-image: linear-gradient(45deg, transparent 50%, var(--theme-select-arrow-color) 50%),
                    linear-gradient(135deg, var(--theme-select-arrow-color) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(1em + 2px), calc(100% - 13px) calc(1em + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 34px;
}
select option,
select optgroup{
  background: var(--panel);
  color: var(--text);
}
select option:hover,
select option:checked,
select option:focus{
  background: var(--theme-accent-2);
  color: #0f1c13;
}
input:focus, select:focus, textarea:focus{
  border-color: rgba(106,166,255,0.55);
  box-shadow: 0 0 0 3px rgba(106,166,255,0.15);
}

button, .btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:42px;
  line-height:1.2;
  white-space:normal;
  text-align:center;
  border-radius:12px;
  border:1px solid var(--button-border);
  background: var(--button-bg);
  color:var(--button-text);
  font-weight:800;
  padding:10px 12px;
  cursor:pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}
button:hover, .btn:hover{
  filter: none;
  border-color: rgba(106,166,255,0.45);
  background: var(--button-hover);
}
button:disabled{
  opacity:0.55;
  cursor:not-allowed;
}

/* Fix file inputs on dark backgrounds */
input[type="file"]{
  color: var(--muted);
}

/* Utility */
.mono{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }


.topbar{
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  row-gap:8px;
  padding:10px 16px;
  border-bottom:1px solid var(--stroke);
  background: var(--panel);
}
.brand{ font-weight:700; }
.topbar-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.link{ color: var(--theme-link); font-weight:700; }

.layout{
  display:flex;
  height: calc(100vh - 56px);
}

.sidebar{
  width: 340px;
  border-right:1px solid var(--stroke);
  background: var(--panel2);
  display:flex;
  flex-direction:column;
}
.sidebar-header{
  padding:12px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.chatlist{ overflow:auto; padding:8px; }
.chatitem{
  padding:10px;
  border-radius:10px;
  cursor:pointer;
  margin-bottom:8px;
  background: var(--input-bg2);
  border:1px solid var(--stroke);
}
.chatitem:hover{ border-color: var(--button-border); }
.chatitem.active{ outline:2px solid rgba(34,197,94,0.4); }
.chatitem .row{
  display:flex; justify-content:space-between; gap:8px;
}
.small{ font-size:12px; }
.muted{ color: var(--muted); }
.btn-small{
  background: var(--button-bg);
  border:1px solid var(--button-border);
  color: var(--button-text);
  border-radius:10px;
  padding:6px 10px;
  cursor:pointer;
}
.btn-small:disabled{ opacity:0.5; cursor:not-allowed; }

.main{
  flex:1;
  display:flex;
  flex-direction:column;
}
.chat-header{
  padding:12px 14px;
  border-bottom:1px solid var(--stroke);
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.chat-title{ font-weight:700; }

.messages{
  flex:1;
  overflow:auto;
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.bubble{
  max-width: 72%;
  padding:10px 12px;
  border-radius: 14px;
  border:1px solid var(--stroke);
  background: var(--input-bg2);
  white-space: pre-wrap;
}
.bubble.out{ align-self:flex-end; background: rgba(148,163,184,0.10); border-color: rgba(148,163,184,0.20); }
.bubble.in{ align-self:flex-start; background: rgba(34,197,94,0.10); border-color: rgba(34,197,94,0.22); }
.bubble.human{ align-self:flex-end; background: rgba(59,130,246,0.12); border-color: rgba(59,130,246,0.22); }

.composer{
  display:flex;
  gap:10px;
  padding:12px;
  border-top:1px solid var(--stroke);
  align-items:flex-end;
  flex-wrap:wrap;
}
.composer input[type="text"]{
  flex:1;
  border-radius:12px;
  border:1px solid var(--stroke);
  background: var(--input-bg);
  color: var(--text);
  padding:10px 12px;
  outline:none;
}

/* Controles de adjuntos sin empalmes */
.composer-actions,
.composer-tools{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  min-width:0;
}
.composer-actions input[type="file"],
.composer-actions button,
.composer-tools button{
  width:auto;
  max-width:100%;
}

/* Web demo: custom file picker so "Elegir archivo" and "Enviar" align */
#fileInput{ display:none; }

.file-picker{
  display:flex;
  align-items:center;
  gap:12px;
}

.file-btn{
  border-radius:12px;
  border:1px solid var(--button-border);
  background: var(--button-bg);
  color:var(--button-text);
  font-weight:700;
  padding:10px 14px;
  width:220px;
  cursor:pointer;
}

.file-name{
  color:var(--muted);
  font-size:12px;
  max-width:160px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.composer button:not(.file-btn){
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.14);
  background: var(--accent);
  color:#06210f;
  font-weight:700;
  padding:10px 14px;
  cursor:pointer;
}
.composer button:not(.file-btn):disabled{ opacity:0.5; cursor:not-allowed; }

.footer-note{ padding:0 12px 12px; }

.login-body{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100vh;
}
.login-card{
  width:360px;
  padding:18px;
  border-radius:14px;
  background: var(--input-bg2);
  border:1px solid var(--stroke);
}
.login-card input{
  width:100%;
  margin-top:10px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--stroke);
  background: var(--input-bg);
  color: var(--text);
}
.login-card button{
  width:100%;
  margin-top:10px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.14);
  background: var(--accent);
  color:var(--button-text);
  font-weight:700;
  cursor:pointer;
}
.error{
  background: rgba(239,68,68,0.15);
  border:1px solid rgba(239,68,68,0.25);
  padding:8px 10px;
  border-radius:12px;
  margin-top:10px;
}

.webdemo-body{ margin:0; }
.webdemo-wrap{
  display:flex;
  justify-content:center;
  padding:18px;
}
.webdemo-card{
  width:min(900px, 98vw);
  height: calc(100vh - 56px - 36px);
  border-radius:14px;
  background: var(--input-bg2);
  border:1px solid var(--stroke);
  display:flex;
  flex-direction:column;
}
.composer input[type="file"]{
  width:220px;
  color: var(--muted);
}
.quick-replies{
  padding:0 12px 12px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.qr{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.05);
  color: var(--button-text);
  cursor:pointer;
}
.qr:hover{
  border-color: rgba(34,197,94,0.35);
}

.bubble-media{ margin-top:8px; }
.bubble-image,
.bubble-video{
  display:block;
  max-width:min(100%, 360px);
  max-height:320px;
  border-radius:12px;
  border:1px solid var(--stroke);
  background:rgba(0,0,0,0.22);
}
.bubble-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--button-text);
  text-decoration:none;
  border:1px solid var(--stroke);
  background:rgba(255,255,255,0.04);
  border-radius:10px;
  padding:8px 10px;
}
.bubble-link:hover{ background:rgba(255,255,255,0.08); text-decoration:none; }


.topbar-actions{ row-gap:8px; }
.tabs{ flex-wrap:wrap !important; row-gap:8px; }
.tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  border:1px solid transparent;
}
.tab.active,
.tab:hover{
  background:var(--tab-active-bg) !important;
  color:var(--tab-active-text) !important;
  border-color:var(--button-border) !important;
  text-decoration:none;
}

.login-card button,
.composer button:not(.file-btn),
.file-btn,
.qr{
  background: var(--button-bg);
  color:var(--button-text);
  border:1px solid var(--button-border);
}
.login-card button:hover,
.composer button:not(.file-btn):hover,
.file-btn:hover,
.qr:hover{
  background: var(--button-hover);
  border-color: rgba(106,166,255,0.45);
}
.composer-file-input{ display:none; }
.composer-file-btn{ min-width:148px; }
.composer-file-name{
  max-width:220px;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
@media (max-width: 900px){
  .composer-tools{ width:100%; }
  .composer-file-name{ max-width:100%; }
}


.tabs{display:flex;gap:10px;padding:10px 18px;border-bottom:1px solid var(--stroke);flex-wrap:wrap;align-items:center}
.tab{padding:8px 10px;border-radius:10px;text-decoration:none;color:var(--muted);font-weight:700}
.tab.active{background:var(--tab-active-bg);color:var(--tab-active-text);border:1px solid var(--button-border)}
.btn-mini{background:var(--button-bg);color:var(--button-text);border:1px solid var(--button-border)}
.btn-mini:hover{background:var(--button-hover)}

html[data-theme="light"] body,
html[data-theme="light"] .login-card,
html[data-theme="light"] .webdemo-card,
html[data-theme="light"] .bubble-link,
html[data-theme="light"] .file-btn,
html[data-theme="light"] .qr,
html[data-theme="light"] .chatmenu-btn,
html[data-theme="light"] .chatmenu-pop,
html[data-theme="light"] .assign-pop select{
  color:var(--text);
}
html[data-theme="light"] .bubble{ background:rgba(20,33,24,.04); border-color:var(--stroke); }
html[data-theme="light"] .bubble.out{ background:rgba(20,33,24,.06); border-color:rgba(20,33,24,.10); }
html[data-theme="light"] .bubble.in{ background:rgba(93,187,122,.11); border-color:rgba(93,187,122,.18); }
html[data-theme="light"] .bubble.human{ background:rgba(73,132,98,.10); border-color:rgba(73,132,98,.18); }
html[data-theme="light"] .chatmenu-btn,
html[data-theme="light"] .chatmenu-pop,
html[data-theme="light"] .assign-pop select,
html[data-theme="light"] .assigned-pill{ background:var(--panel); border-color:var(--stroke); }
html[data-theme="light"] .chatmenu-pop button:hover{ background:rgba(20,33,24,.05); }
html[data-theme="light"] .chatmenu-pop button.danger{ color:var(--danger); }
html[data-theme="light"] .assigned-pill{ color:var(--text); }

@media (max-width: 960px){
  .layout{flex-direction:column;height:auto;min-height:calc(100vh - 112px)}
  .sidebar{width:100%;max-height:38vh;border-right:0;border-bottom:1px solid var(--stroke)}
  .main{min-height:55vh}
  .bubble{max-width:86%}
  .chat-header{flex-wrap:wrap;gap:10px;align-items:flex-start}
}
@media (max-width: 720px){
  .topbar{padding:12px}
  .topbar-actions{width:100%;gap:10px}
  .tabs{padding:10px 12px}
  .sidebar-header,
  .messages,
  .composer{padding:10px}
  .composer{align-items:stretch}
  .composer input[type="text"]{width:100%}
  .composer-tools,
  .composer-actions{width:100%}
  .composer button:not(.file-btn),
  .file-btn,
  .btn-small{width:100%}
  .composer-file-btn{min-width:0}
  .composer-file-name{max-width:100%}
  .webdemo-wrap{padding:12px}
  .webdemo-card{width:min(100%, 100vw);height:auto;min-height:calc(100vh - 120px)}
  .login-card{width:min(100%, 420px);margin:0 12px}
}