:root {
  --pico-font-size: 100%;
  --app-bg: #111827;
  --panel-bg: #1f2937;
  --panel-soft: #273449;
  --panel-border: #34445c;
  --text-soft: #aebbd0;
  --accent: #7289da;
}

body { margin: 0; background: var(--app-bg); }
button { transition: filter .15s ease, background .15s ease; }
button:hover:not(:disabled) { filter: brightness(1.08); }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 4.5rem 15rem minmax(0, 1fr) 15rem; }
.hub-sidebar, .channel-sidebar, .member-sidebar { background: var(--panel-bg); }
.hub-sidebar { padding: .75rem .55rem; border-right: 1px solid var(--panel-border); }
.channel-sidebar { padding: 1rem .8rem; border-right: 1px solid var(--panel-border); }
.member-sidebar { padding: 1rem; border-left: 1px solid var(--panel-border); overflow-y: auto; }
.member-sidebar h3 { display: flex; align-items: center; gap: .35rem; }
.hub-list { display: grid; gap: .65rem; }
.hub-button { width: 3.25rem; height: 3.25rem; padding: 0; margin: 0 auto; border: 0; border-radius: 50%; background: var(--panel-soft); color: white; font-weight: 700; }
.hub-button.active { border-radius: 1rem; background: var(--accent); }
.hub-button.add { color: #8ee0a6; }
.brand { margin: .15rem auto 1.2rem; width: 3.25rem; height: 3.25rem; display: grid; place-items: center; color: white; font-weight: 800; }
.channel-header { padding-bottom: 1rem; border-bottom: 1px solid var(--panel-border); }
.channel-header strong, .member-sidebar h3 { color: white; }
.channel-group { margin-top: 1.25rem; }
.channel-group h3 { margin: 0 0 .35rem; color: var(--text-soft); font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; }
.channel-button { width: 100%; margin: .1rem 0; padding: .5rem .65rem; border: 0; border-radius: .35rem; background: transparent; color: var(--text-soft); text-align: left; }
.channel-button:hover, .channel-button.active { background: var(--panel-soft); color: white; }
.channel-icon { display: inline-block; width: 1.3rem; color: var(--text-soft); }
.member-count { float: right; color: var(--text-soft); font-size: .75rem; }
.channel-members { margin: -.05rem 0 .4rem 1.95rem; }
.channel-member { display: flex; align-items: center; gap: .45rem; padding: .2rem .35rem; color: var(--text-soft); font-size: .82rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.channel-member small { color: var(--text-soft); font-size: .68rem; }
.status-dot { width: .45rem; height: .45rem; flex: 0 0 .45rem; border-radius: 50%; background: #45d483; }
.voice-channel { margin: .1rem 0; }
.main-panel { min-width: 0; padding: 1.4rem clamp(1rem, 4vw, 3rem); }
.main-header { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; border-bottom: 1px solid var(--panel-border); padding-bottom: 1rem; }
.main-header h1 { margin: 0; color: white; }
.main-header p { margin: .25rem 0 0; color: var(--text-soft); }
.content-card { margin-top: 1.5rem; padding: 1.25rem; background: var(--panel-bg); border: 1px solid var(--panel-border); border-radius: .6rem; }
.status { display: flex; align-items: center; gap: .6rem; border-left: .25rem solid var(--accent); padding: .75rem 1rem; background: var(--panel-soft); }
.status small { display: block; color: var(--text-soft); }
.status-indicator { width: .55rem; height: .55rem; flex: 0 0 .55rem; border-radius: 50%; background: #f4c95d; }
.status-connected { border-left-color: #45d483; }
.status-connected .status-indicator { background: #45d483; }
.status-error { border-left-color: #ef7272; }
.status-error .status-indicator { background: #ef7272; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
textarea { min-height: 8rem; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .8rem; }
.actions { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.audio-output { display: none; }
.voice-controls { margin-top: 1.5rem; }
.member { display: flex; align-items: center; gap: .6rem; padding: .45rem 0; color: var(--text-soft); }
.avatar { width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; font-size: .8rem; font-weight: 700; }
.member small { display: block; color: #7ee0a1; }
.member-total { color: var(--text-soft); font-size: .75rem; font-weight: 400; }
.empty-members { color: var(--text-soft); font-size: .85rem; }
.muted { color: var(--text-soft); }

@media (max-width: 850px) {
  .app-shell { grid-template-columns: 4.5rem minmax(0, 1fr); }
  .member-sidebar { display: none; }
}
@media (max-width: 560px) {
  .app-shell { grid-template-columns: 1fr; }
  .hub-sidebar { display: flex; gap: .5rem; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--panel-border); }
  .brand { margin: 0; flex: 0 0 auto; }
  .hub-list { display: flex; }
  .channel-sidebar { border-right: 0; border-bottom: 1px solid var(--panel-border); }
}