:root {
  --bg: #0d0f14;
  --panel: #161922;
  --panel-2: #1d2130;
  --border: #2a2f3e;
  --text: #e7e9ee;
  --muted: #8b91a3;
  --accent: #8a5cf6;
  --accent-2: #e1306c;
  --ok: #36c08a;
  --warn: #e6b450;
  --me: #3a2f6b;
  --them: #20242f;
  --radius: 12px;
  --grad: linear-gradient(95deg, #e1306c, #8a5cf6 60%, #4f8cff);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; cursor: pointer; }
input, select { font: inherit; }
a { color: #7aa2ff; }
.hidden { display: none !important; }
.muted { color: var(--muted); }

/* ---- auth ---- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card {
  width: 100%; max-width: 380px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 16px; padding: 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.brand { font-weight: 800; font-size: 22px; letter-spacing: -.3px; margin: 0 0 4px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.auth-card p { color: var(--muted); margin: 0 0 18px; font-size: 13.5px; }
.auth-card input { width: 100%; padding: 12px 14px; margin-bottom: 12px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 10px; color: var(--text); }
.auth-card input:focus { outline: none; border-color: var(--accent); }
.btn-primary { width: 100%; padding: 12px; border: none; border-radius: 10px; color: #fff;
  background: var(--grad); font-weight: 700; }
.btn-primary:disabled { opacity: .6; cursor: default; }
.err { color: #ff7a90; font-size: 13px; min-height: 18px; margin-top: 2px; }

/* ---- app shell ---- */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 16px;
  padding: 12px 20px; background: rgba(13,15,20,.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border); }
.topbar .brand { font-size: 18px; margin: 0; }
.topbar .stats { color: var(--muted); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; }
.topbar .stats b { color: var(--text); font-weight: 600; }
.topbar .spacer { flex: 1; }
.icon-btn { background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: 9px; }
.icon-btn:hover { border-color: var(--accent); }

.container { max-width: 1100px; margin: 0 auto; padding: 20px; }

/* ---- import panel ---- */
.import { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 18px; }
.import h3 { margin: 0 0 10px; font-size: 14px; }
.import .row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.import input[type=text] { flex: 1; min-width: 240px; padding: 10px 12px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 9px; color: var(--text); }
.dropzone { border: 1.5px dashed var(--border); border-radius: 10px; padding: 18px; text-align: center;
  color: var(--muted); margin-top: 10px; transition: .15s; }
.dropzone.drag { border-color: var(--accent); color: var(--text); background: rgba(138,92,246,.08); }
.btn { background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 16px; border-radius: 9px; font-weight: 600; }
.btn:hover { border-color: var(--accent); }
.btn.go { background: var(--grad); border: none; color: #fff; }
.progress { margin-top: 12px; font-size: 13px; color: var(--muted); }
.bar { height: 6px; background: var(--panel-2); border-radius: 4px; overflow: hidden; margin-top: 6px; }
.bar > i { display: block; height: 100%; background: var(--grad); width: 0%; transition: width .3s; }

/* ---- search ---- */
.searchbar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.searchbar input.q { flex: 1; padding: 13px 16px; font-size: 16px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 12px; color: var(--text); }
.searchbar input.q:focus { outline: none; border-color: var(--accent); }
.modes { display: inline-flex; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.modes button { background: transparent; border: none; color: var(--muted); padding: 11px 14px; }
.modes button.active { background: var(--panel-2); color: var(--text); }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.filters select, .filters input[type=date] { background: var(--panel); border: 1px solid var(--border);
  color: var(--text); padding: 8px 10px; border-radius: 9px; }
.filters .chip { color: var(--muted); font-size: 12px; align-self: center; }

/* ---- results ---- */
.results { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 820px){ .results { grid-template-columns: 1fr; } }
.col h4 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.col h4 span { color: var(--accent); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; margin-bottom: 10px; cursor: pointer; transition: .12s; }
.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card .head { display: flex; gap: 8px; align-items: baseline; font-size: 12.5px; margin-bottom: 5px; }
.card .sender { font-weight: 700; }
.card .when { color: var(--muted); }
.card .thread { color: var(--muted); margin-left: auto; max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .body { font-size: 14.5px; white-space: pre-wrap; word-break: break-word; }
.card .body mark { background: rgba(225,48,108,.32); color: inherit; border-radius: 3px; padding: 0 2px; }
.card .score { font-size: 11px; color: var(--accent); float: right; }
.thumbs { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.thumbs img { width: 84px; height: 84px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.media-tag { display: inline-block; font-size: 11px; padding: 2px 7px; border-radius: 20px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); margin-top: 8px; }
.empty { color: var(--muted); padding: 30px; text-align: center; }

/* ---- modal / conversation ---- */
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 40; display: grid; place-items: center; padding: 24px; }
.modal { width: 100%; max-width: 680px; max-height: 86vh; background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; display: flex; flex-direction: column; overflow: hidden; }
.modal .mhead { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.modal .mhead .title { font-weight: 700; }
.modal .mbody { padding: 16px 18px; overflow-y: auto; }
.bubble { max-width: 78%; padding: 9px 12px; border-radius: 14px; margin: 8px 0; font-size: 14.5px;
  white-space: pre-wrap; word-break: break-word; background: var(--them); }
.bubble .b-sender { font-size: 11.5px; color: var(--muted); margin-bottom: 3px; }
.bubble .b-when { font-size: 10.5px; color: var(--muted); margin-top: 4px; }
.bubble.me { margin-left: auto; background: var(--me); }
.bubble.target { outline: 2px solid var(--accent); }
.bubble img { max-width: 220px; border-radius: 10px; display: block; margin-top: 4px; cursor: zoom-in; }
.bubble .react { font-size: 12px; margin-top: 4px; }

/* ---- lightbox ---- */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.9); z-index: 60; display: grid; place-items: center; cursor: zoom-out; }
.lightbox img { max-width: 94vw; max-height: 94vh; border-radius: 8px; }