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

:root {
  --bg:        #0f1117;
  --bg-2:      #161b22;
  --bg-3:      #1c2128;
  --border:    rgba(255,255,255,0.08);
  --border-md: rgba(255,255,255,0.14);
  --fg:        rgba(255,255,255,0.9);
  --fg-muted:  rgba(255,255,255,0.55);
  --fg-faint:  rgba(255,255,255,0.32);
  --accent:    #58a6ff;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --purple:    #bc8cff;
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body { height: 100dvh; overflow: hidden; }

button { cursor: pointer; border: none; background: none; color: inherit; font: inherit; }
input  { font: inherit; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

/* ── Layout ── */
#app { display: flex; height: 100dvh; overflow: hidden; }

/* ── Sidebar ── */
.sidebar {
  width: 220px; flex-shrink: 0;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.sidebar-header {
  padding: 16px 14px 12px;
  border-bottom: 1px solid var(--border);
}
.sidebar-header .app-name { font-size: 13px; font-weight: 600; letter-spacing: -0.02em; }
.sidebar-header .repo-name { font-size: 11px; color: var(--fg-faint); margin-top: 1px; }

.sidebar-section { padding: 10px 8px 4px; }
.sidebar-section.grow { flex: 1; overflow-y: auto; }
.section-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--fg-faint);
  padding: 0 6px; margin-bottom: 4px; display: block;
}
.nav-item {
  display: flex; align-items: center; gap: 8px;
  width: 100%; text-align: left; padding: 5px 8px;
  border-radius: 6px; font-size: 13px;
  color: var(--fg-muted);
  transition: background 0.12s, color 0.12s;
}
.nav-item:hover { background: rgba(255,255,255,0.04); color: var(--fg); }
.nav-item.active { background: rgba(255,255,255,0.06); color: var(--fg); }

.sidebar-footer {
  padding: 10px 12px 14px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
}
.sidebar-footer .user-name { font-size: 12px; font-weight: 500; }
.sidebar-footer .user-role { font-size: 11px; color: var(--fg-faint); }

/* ── Avatar ── */
.avatar {
  border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; color: #fff; letter-spacing: -0.02em;
}

/* ── Status dot ── */
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  flex-shrink: 0; display: inline-block;
}
.dot.online  { background: var(--green); }
.dot.offline { background: var(--fg-faint); }

/* ── Feed ── */
.feed {
  flex: 1; display: flex; flex-direction: column; overflow: hidden;
  min-width: 0;
}
.feed-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}
.feed-header .chan-name { font-weight: 600; font-size: 14px; }
.feed-header .chan-desc { color: var(--fg-faint); font-size: 12px; }

.messages {
  flex: 1; overflow-y: auto;
  padding: 12px 20px 8px;
  display: flex; flex-direction: column; gap: 0;
}
.msg-group { padding-top: 12px; }
.msg-group.compact { padding-top: 2px; }
.msg-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 3px;
}
.msg-author { font-weight: 600; font-size: 13px; }
.msg-time   { font-size: 11px; color: var(--fg-faint); margin-left: auto; }
.msg-badge  {
  font-size: 10px; font-weight: 600; padding: 1px 6px;
  border-radius: 4px; letter-spacing: 0.04em; text-transform: uppercase;
}
.msg-meta   { font-size: 11px; color: var(--accent); font-family: monospace; }
.msg-body   {
  padding-left: 32px; font-size: 13px;
  color: var(--fg-muted); line-height: 1.6;
}
.msg-body.incident { color: var(--red); }

/* ── Composer ── */
.composer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.composer-inner {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg-3); border: 1px solid var(--border-md);
  border-radius: 8px; padding: 8px 12px;
}
.composer-inner input {
  flex: 1; background: transparent; border: none; outline: none;
  font-size: 13px; color: var(--fg);
}
.composer-inner input::placeholder { color: var(--fg-faint); }
.send-btn {
  padding: 4px 12px; border-radius: 6px;
  font-size: 12px; font-weight: 500;
  background: rgba(255,255,255,0.06); color: var(--fg-faint);
  transition: background 0.12s, color 0.12s;
}
.send-btn.ready { background: var(--accent); color: #fff; }

/* ── Sprint panel ── */
.sprint-panel {
  width: 256px; flex-shrink: 0;
  background: var(--bg-2); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden;
}
.sprint-header {
  padding: 12px 14px; border-bottom: 1px solid var(--border);
}
.sprint-header .sprint-name { font-weight: 600; font-size: 13px; }
.sprint-header .sprint-dates { font-size: 11px; color: var(--fg-faint); margin-top: 1px; }

.sprint-goal {
  padding: 12px 14px; border-bottom: 1px solid var(--border);
}
.sprint-goal .label { font-size: 11px; color: var(--fg-faint); margin-bottom: 5px; }
.sprint-goal .goal-text { font-size: 12px; color: var(--fg-muted); line-height: 1.5; }
.progress-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.progress-track {
  flex: 1; height: 4px; border-radius: 2px;
  background: rgba(255,255,255,0.08); overflow: hidden;
}
.progress-fill { height: 100%; background: var(--green); border-radius: 2px; transition: width 0.5s; }
.progress-count { font-size: 11px; color: var(--fg-faint); flex-shrink: 0; }

.task-list { flex: 1; overflow-y: auto; padding: 8px; }
.task-item {
  display: flex; align-items: flex-start; gap: 8px;
  padding: 6px 8px; border-radius: 6px;
  border-bottom: 1px solid var(--border);
}
.task-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; margin-top: 5px; }
.task-title {
  font-size: 12px; color: var(--fg-muted); line-height: 1.4;
}
.task-title.done { text-decoration: line-through; color: var(--fg-faint); }
.task-sub { display: flex; align-items: center; gap: 5px; margin-top: 3px; }
.task-status-label { font-size: 10px; color: var(--fg-faint); }

.presence-footer {
  padding: 10px 14px 12px; border-top: 1px solid var(--border);
}
.presence-footer .label { font-size: 11px; color: var(--fg-faint); margin-bottom: 7px; }
.presence-row { display: flex; align-items: center; gap: 7px; margin-bottom: 5px; }
.presence-name { font-size: 11px; }
.presence-name.offline { color: var(--fg-faint); }
.away-badge { font-size: 10px; color: var(--fg-faint); margin-left: auto; }

@media (max-width: 720px) {
  .sprint-panel { display: none; }
}
@media (max-width: 520px) {
  .sidebar { width: 180px; }
}