:root {
  --bg: #0c0e14;
  --surface: #141824;
  --surface-2: #1b2030;
  --border: #262c3d;
  --text: #eef1f8;
  --text-dim: #99a1b8;
  --accent: #7c8cff;
  --accent-2: #46d19e;
  --warn: #ffb454;
  --danger: #ff6b6b;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #171c2b 0%, var(--bg) 55%);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  min-height: 100vh;
}
a { color: var(--accent); }

/* ---- top bar ---- */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 24px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(12,14,20,.8); backdrop-filter: blur(10px); z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .2px; }
.brand .dot { width: 12px; height: 12px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 0 14px var(--accent); }
.brand small { color: var(--text-dim); font-weight: 500; }
.spacer { flex: 1; }
.range { display: flex; gap: 4px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 3px; }
.range button { background: transparent; color: var(--text-dim); border: 0; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 600; }
.range button.active { background: var(--accent); color: #0c0e14; }
.btn-ghost { background: var(--surface); color: var(--text-dim); border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; cursor: pointer; font-weight: 600; }
.btn-ghost:hover { color: var(--text); }

/* ---- layout ---- */
.wrap { padding: 24px; max-width: 1200px; margin: 0 auto; }
.demo-banner { background: rgba(255,180,84,.12); border: 1px solid rgba(255,180,84,.4); color: var(--warn); padding: 10px 14px; border-radius: 10px; margin-bottom: 18px; font-size: 13px; }
.err-banner { background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.4); color: var(--danger); padding: 10px 14px; border-radius: 10px; margin-bottom: 18px; font-size: 13px; display: none; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 20px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.kpi .label { color: var(--text-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .6px; }
.kpi .value { font-size: 30px; font-weight: 750; margin-top: 6px; font-variant-numeric: tabular-nums; }
.kpi .sub { color: var(--text-dim); font-size: 12px; margin-top: 2px; }

.grid { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
@media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .grid3 { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin-bottom: 16px; }
.card h3 { margin: 0 0 14px; font-size: 14px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.card h3 .muted { color: var(--text-dim); font-weight: 500; font-size: 12px; }

/* ---- charts ---- */
svg { display: block; width: 100%; overflow: visible; }
.axis { fill: var(--text-dim); font-size: 10px; }
.gridline { stroke: var(--border); stroke-width: 1; }

/* ---- bars / lists ---- */
.rows { display: flex; flex-direction: column; gap: 10px; }
.row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }
.row .name { color: var(--text); font-size: 13px; }
.row .bar { grid-column: 1 / -1; height: 8px; background: var(--surface-2); border-radius: 6px; overflow: hidden; }
.row .bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 6px; }
.row .n { color: var(--text-dim); font-size: 12px; font-variant-numeric: tabular-nums; }

/* funnel */
.funnel { display: flex; flex-direction: column; gap: 8px; }
.step { background: var(--surface-2); border-radius: 10px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: center; position: relative; overflow: hidden; }
.step .fill { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(124,140,255,.35), rgba(70,209,158,.25)); }
.step .lbl, .step .val { position: relative; z-index: 1; }
.step .val { font-weight: 700; font-variant-numeric: tabular-nums; }
.step .rate { color: var(--text-dim); font-size: 12px; margin-left: 8px; }

/* support */
.support-wrap { display: grid; grid-template-columns: 300px 1fr; gap: 16px; min-height: 260px; }
@media (max-width: 760px) { .support-wrap { grid-template-columns: 1fr; } }
.ticket-list { display: flex; flex-direction: column; gap: 8px; max-height: 420px; overflow-y: auto; }
.ticket { text-align: left; background: var(--surface-2); border: 1px solid transparent; border-radius: 10px; padding: 10px 12px; cursor: pointer; width: 100%; }
.ticket:hover { border-color: var(--border); }
.ticket.active { border-color: var(--accent); }
.ticket .trow { display: flex; align-items: center; gap: 8px; }
.ticket .cid { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--text); }
.ticket .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: none; }
.ticket .plat { font-size: 11px; color: var(--text-dim); margin-left: auto; }
.ticket .snip { color: var(--text-dim); font-size: 12px; margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ticket .st { font-size: 10px; text-transform: uppercase; letter-spacing: .4px; }
.ticket .st.resolved { color: var(--accent-2); }
.ticket .st.open { color: var(--warn); }

.thread { display: flex; flex-direction: column; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.thread-head { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-dim); }
.thread-head .cid { font-family: ui-monospace, Menlo, monospace; color: var(--text); }
.thread-head button { margin-left: auto; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-dim); border-radius: 8px; padding: 5px 10px; cursor: pointer; font-size: 12px; }
.msgs { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; max-height: 340px; }
.bubble { max-width: 78%; padding: 9px 12px; border-radius: 12px; font-size: 13px; line-height: 1.4; white-space: pre-wrap; word-break: break-word; }
.bubble.user { align-self: flex-start; background: var(--surface-2); border-bottom-left-radius: 4px; }
.bubble.support { align-self: flex-end; background: var(--accent); color: #0c0e14; border-bottom-right-radius: 4px; }
.bubble .when { display: block; font-size: 10px; opacity: .6; margin-top: 4px; }
.bubble.ai { background: #2a2350; color: var(--text); }
.bubble .tag { display: inline-block; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--accent); margin-right: 6px; vertical-align: 1px; }
.reply-box { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--border); }
.reply-box textarea { flex: 1; resize: none; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 9px 11px; color: var(--text); font: inherit; font-size: 13px; min-height: 38px; max-height: 120px; }
.reply-box textarea:focus { outline: none; border-color: var(--accent); }
.reply-box button { align-self: flex-end; background: var(--accent); color: #0c0e14; border: 0; border-radius: 10px; padding: 9px 16px; font-weight: 700; cursor: pointer; }

/* comps */
.comp-form { display: flex; gap: 8px; flex-wrap: wrap; }
.comp-form input { flex: 1; min-width: 160px; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; color: var(--text); font-size: 14px; }
.comp-form input:focus { outline: none; border-color: var(--accent); }
.comp-err { color: var(--danger); font-size: 13px; min-height: 16px; margin-top: 8px; }
.comp-row { display: flex; align-items: center; gap: 10px; background: var(--surface-2); border-radius: 10px; padding: 10px 12px; }
.comp-row .cid { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; color: var(--text); }
.comp-row .cnote { color: var(--text-dim); font-size: 12px; }
.comp-row .cadded { color: var(--text-dim); font-size: 11px; margin-left: auto; white-space: nowrap; }
.comp-row .cdel { background: transparent; border: 1px solid var(--border); color: var(--danger); border-radius: 8px; padding: 5px 10px; cursor: pointer; font-size: 12px; }
.comp-row .cdel:hover { background: rgba(255,107,107,.12); }

.empty { color: var(--text-dim); font-size: 13px; text-align: center; padding: 20px; }
.updated { color: var(--text-dim); font-size: 12px; text-align: center; margin-top: 8px; }

/* ---- login ---- */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 32px; width: 100%; max-width: 360px; box-shadow: var(--shadow); }
.login-card .brand { justify-content: center; font-size: 20px; margin-bottom: 6px; }
.login-card p.sub { color: var(--text-dim); text-align: center; margin: 0 0 22px; font-size: 13px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
.field input { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 11px 12px; color: var(--text); font-size: 15px; }
.field input:focus { outline: none; border-color: var(--accent); }
.btn-primary { width: 100%; background: var(--accent); color: #0c0e14; border: 0; border-radius: 10px; padding: 12px; font-weight: 700; font-size: 15px; cursor: pointer; }
.btn-primary:disabled { opacity: .6; cursor: default; }
.login-err { color: var(--danger); font-size: 13px; text-align: center; min-height: 18px; margin-top: 10px; }