:root {
  --bg: #0b0a14;
  --panel: #14122a;
  --edge: #2a2650;
  --violeta: #8b5cf6;
  --rosa: #ec4899;
  --texto: #e9e6ff;
  --mate: #8d89b0;
  --ok: #34d399;
  --alerta: #fbbf24;
  --err: #f87171;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b1640 0%, var(--bg) 60%) fixed;
  color: var(--texto);
  font: 15px/1.45 system-ui, "Segoe UI", Roboto, sans-serif;
}
#app { height: 100%; display: flex; flex-direction: column; max-width: 900px; margin: 0 auto; padding: 0 16px; }

header { display: flex; align-items: center; justify-content: space-between; padding: 14px 2px; }
.brand { font-size: 20px; font-weight: 700; letter-spacing: .3px; }
.brand span { color: var(--violeta); }
.pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill { font-size: 11px; padding: 3px 9px; border-radius: 99px; border: 1px solid var(--edge); color: var(--mate); }
.pill.ok { color: var(--ok); border-color: #1d4b3a; }
.pill.bad { color: var(--err); border-color: #5c2233; }

nav { display: flex; gap: 8px; }
.tab {
  flex: 1; background: var(--panel); color: var(--mate); border: 1px solid var(--edge);
  border-radius: 12px; padding: 10px; font-size: 15px; font-weight: 600; cursor: pointer;
}
.tab.active { color: #fff; background: linear-gradient(135deg, var(--violeta), var(--rosa)); border-color: transparent; }

main { flex: 1; display: flex; margin-top: 12px; min-height: 0; }
.panel { display: none; flex: 1; flex-direction: column; background: var(--panel); border: 1px solid var(--edge); border-radius: 16px; padding: 14px; min-height: 0; }
.panel.active { display: flex; }

.panel-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; color: var(--mate); font-size: 13px; }
.panel-head b { color: var(--texto); }

.chat { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; padding: 6px 2px 10px; }
.msg { max-width: 85%; padding: 9px 12px; border-radius: 14px; white-space: pre-wrap; word-break: break-word; }
.msg.user { align-self: flex-end; background: linear-gradient(135deg, var(--violeta), var(--rosa)); color: #fff; border-bottom-right-radius: 4px; }
.msg.model { align-self: flex-start; background: #1d1a3d; border-bottom-left-radius: 4px; }
.msg.info { align-self: center; color: var(--mate); font-size: 12.5px; background: none; }
.msg.qr-msg { align-self: flex-start; background: transparent; }
.msg.error { align-self: flex-start; background: #3a1522; color: var(--err); }

.composer { display: flex; gap: 8px; margin-top: 10px; }
.composer input {
  flex: 1; background: #0f0d22; border: 1px solid var(--edge); border-radius: 12px; color: var(--texto);
  padding: 11px 13px; font-size: 15px; outline: none;
}
.composer input:focus { border-color: var(--violeta); }
.send { background: linear-gradient(135deg, var(--violeta), var(--rosa)); border: 0; color: #fff; border-radius: 12px; padding: 0 18px; font-weight: 700; cursor: pointer; }
.send:disabled { opacity: .5; cursor: default; }

.ghost { background: #1d1a3d; border: 1px solid var(--edge); color: var(--texto); border-radius: 10px; padding: 6px 10px; font-size: 12px; cursor: pointer; }
.ghost:disabled { opacity: .5; cursor: default; }

.qr { text-align: center; margin: 6px 0; }
.qr p { color: var(--mate); margin-bottom: 8px; font-size: 13px; }
.qr img { width: 210px; height: 210px; background: #fff; padding: 8px; border-radius: 12px; }
.hidden { display: none; }
.pair-code { font-size: 30px; letter-spacing: 6px; font-weight: 800; color: #fff; background: #1d1a3d; border: 1px dashed var(--violeta); border-radius: 12px; padding: 12px; margin: 6px auto; width: fit-content; }
.hint { font-size: 12px; opacity: .6; margin-top: 6px; }
.spin { display: inline-block; animation: girar .8s linear infinite; }
@keyframes girar { to { transform: rotate(360deg); } }