:root{
  --bg:#0b1020;
  --bg2:#0f1730;
  --card:#151d38;
  --card2:#1b2547;
  --line:#26315c;
  --text:#eef2ff;
  --muted:#9aa6d0;
  --muted2:#6b76a3;
  --accent:#6366f1;
  --accent2:#0ea5e9;
  --good:#22c55e;
  --warn:#f59e0b;
  --danger:#ef4444;
  --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --maxw:1080px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:radial-gradient(1200px 600px at 80% -10%,rgba(99,102,241,.25),transparent 60%),
             radial-gradient(1000px 500px at -10% 10%,rgba(14,165,233,.18),transparent 55%),
             var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.45;
  padding-bottom:60px;
}

/* ---------- Top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(12px);
  background:rgba(11,16,32,.78);
  border-bottom:1px solid var(--line);
  padding:12px clamp(12px,4vw,28px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.logo{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:grid;place-items:center;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 18px rgba(99,102,241,.5);
}
.brandtext h1{font-size:19px;margin:0;font-weight:800;letter-spacing:.2px}
.brandtext h1 span{color:var(--accent2)}
.brandtext p{margin:1px 0 0;font-size:12px;color:var(--muted)}
.tabs{display:flex;gap:8px}
.tab{
  border:1px solid var(--line);background:var(--card);color:var(--text);
  padding:9px 14px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;
  display:flex;align-items:center;gap:8px;transition:.15s;
}
.tab:hover{border-color:var(--accent)}
.tab.active{background:linear-gradient(135deg,var(--accent),var(--accent2));border-color:transparent}
.pill{
  background:rgba(255,255,255,.16);border-radius:999px;padding:1px 8px;font-size:12px;font-weight:700;min-width:22px;text-align:center;
}

/* ---------- Layout ---------- */
.view{max-width:var(--maxw);margin:0 auto;padding:16px clamp(12px,4vw,28px)}
.hidden{display:none !important}

/* ---------- Controls ---------- */
.controls{
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;margin-bottom:16px;position:sticky;top:74px;z-index:30;box-shadow:var(--shadow);
}
.searchrow{display:flex;gap:8px;align-items:center}
#search{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;
  color:var(--text);padding:12px 14px;font-size:15px;outline:none;
}
#search:focus{border-color:var(--accent)}
#search::placeholder{color:var(--muted2)}
.ghost{
  background:var(--card);border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:10px 12px;cursor:pointer;font-size:14px;transition:.15s;
}
.ghost:hover{border-color:var(--accent)}
.ghost.small{padding:7px 11px;font-size:13px}
.ghost.danger:hover{border-color:var(--danger);color:#ffd7d7}

.chiprow{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chip{
  border:1px solid var(--line);background:var(--card);color:var(--text);
  padding:7px 13px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer;transition:.15s;
  display:flex;align-items:center;gap:7px;
}
.chip:hover{border-color:var(--accent)}
.chip.active{background:var(--accent);border-color:transparent;color:#fff}
.chip .c-count{font-size:11px;opacity:.75}
.chip.active .c-count{opacity:.9}

.filterrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px;align-items:flex-end}
.selwrap{display:flex;flex-direction:column;gap:4px;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.selwrap select{
  background:var(--card);border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:9px 10px;font-size:14px;min-width:150px;cursor:pointer;
}
.filterrow .ghost.small{margin-left:auto}
.resultmeta{margin-top:10px;font-size:13px;color:var(--muted)}

/* ---------- List & day groups ---------- */
.list{display:flex;flex-direction:column;gap:10px}
.daygroup{margin-top:6px}
.dayhead{
  position:sticky;top:0;z-index:5;
  display:flex;align-items:baseline;gap:10px;
  padding:10px 4px 8px;margin:8px 0 4px;
  font-weight:800;font-size:16px;
  border-bottom:1px solid var(--line);
}
.dayhead .count{font-size:12px;color:var(--muted);font-weight:600}
.grouplabel{
  font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  padding:12px 4px 2px;
}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:14px;padding:13px 14px;display:flex;gap:14px;align-items:flex-start;
  transition:.15s;
}
.card:hover{border-color:var(--accent);background:var(--card2)}
.card .time{
  flex:0 0 auto;min-width:64px;text-align:center;
}
.card .time .t1{font-weight:800;font-size:15px;line-height:1.1}
.card .time .t2{font-size:12px;color:var(--muted)}
.card .time .dur{font-size:10px;color:var(--muted2);margin-top:3px}
.card .body{flex:1;min-width:0}
.card .title{font-size:15px;font-weight:700;margin:0 0 3px;line-height:1.3}
.card .title-zh{font-size:12.5px;color:var(--muted);margin:0 0 7px;line-height:1.35}
.card .metaline{display:flex;flex-wrap:wrap;gap:6px 10px;font-size:12.5px;color:var(--muted);align-items:center}
.card .venue{display:flex;align-items:center;gap:4px}
.tag{
  font-size:11px;font-weight:700;padding:2px 9px;border-radius:999px;
  color:#fff;white-space:nowrap;
}
.card .actions{display:flex;flex-direction:column;gap:6px;flex:0 0 auto}
.iconbtn{
  border:1px solid var(--line);background:var(--bg2);color:var(--text);
  border-radius:10px;padding:8px 10px;cursor:pointer;font-size:13px;font-weight:600;
  white-space:nowrap;transition:.15s;display:flex;align-items:center;gap:5px;justify-content:center;
}
.iconbtn:hover{border-color:var(--accent)}
.iconbtn.added{background:linear-gradient(135deg,var(--good),#16a34a);border-color:transparent;color:#fff}
.iconbtn.research:hover{border-color:var(--accent2)}

/* conflict badge in planner */
.conflict{
  border-left-color:var(--warn) !important;
}
.conflict-note{
  font-size:11.5px;color:#ffcf87;background:rgba(245,158,11,.12);
  border:1px solid rgba(245,158,11,.35);border-radius:8px;padding:4px 8px;margin-top:6px;display:inline-block;
}

/* ---------- Empty state ---------- */
.empty{
  text-align:center;padding:50px 20px;color:var(--muted);
  border:1px dashed var(--line);border-radius:var(--radius);background:var(--bg2);
}
.empty h3{color:var(--text);margin:0 0 6px}
.empty .big{font-size:34px;margin-bottom:8px}

/* ---------- Planner head ---------- */
.planner-head{
  display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;
  margin-bottom:12px;
}
.planner-head h2{margin:0;font-size:20px}
.planner-actions{display:flex;gap:8px}
.muted{color:var(--muted);font-size:13px;margin:4px 0 0}

/* ---------- Modal ---------- */
.modal{
  position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:16px;
  background:rgba(4,7,18,.72);backdrop-filter:blur(4px);
}
.modal-card{
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);
  max-width:520px;width:100%;padding:22px;position:relative;box-shadow:var(--shadow);
  max-height:88vh;overflow:auto;
}
.modal-close{
  position:absolute;top:12px;right:12px;border:1px solid var(--line);background:var(--card);
  color:var(--text);border-radius:8px;width:32px;height:32px;cursor:pointer;font-size:15px;
}
.modal-card h3{margin:0 8px 4px 0;font-size:18px;padding-right:30px}
.modal-card .m-zh{color:var(--muted);font-size:13px;margin:0 0 14px}
.modal-card .m-meta{font-size:13px;color:var(--muted);margin:0 0 16px;display:flex;flex-direction:column;gap:4px}
.m-section-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted2);margin:16px 0 8px;font-weight:700}
.research-links{display:flex;flex-direction:column;gap:8px}
.research-links a{
  display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);
  background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 13px;font-size:14px;transition:.15s;
}
.research-links a:hover{border-color:var(--accent2);background:var(--card2)}
.research-links a .r-ico{font-size:17px}
.research-links a .r-sub{display:block;font-size:11.5px;color:var(--muted)}
.modal-addrow{margin-top:18px;display:flex;gap:8px}
.modal-addrow .iconbtn{flex:1;padding:12px;font-size:14px}

/* ---------- Top Picks ---------- */
.top-intro h2{margin:0 0 6px;font-size:20px}
.top-intro{margin-bottom:14px}
.track-head{
  margin:22px 0 4px;padding:14px;border:1px solid var(--line);border-radius:14px;
  background:var(--bg2);
}
.track-head:first-child{margin-top:0}
.track-title{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.track-title h3{margin:0;font-size:17px}
.track-title .count{font-size:12px;color:var(--muted2)}
.track-why{margin:8px 0 0;font-size:13px;color:var(--muted);line-height:1.5}
.rankbadge{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  margin-right:-4px;align-self:center;
}

/* ---------- AI Assistant ---------- */
.chat-shell{display:flex;flex-direction:column;gap:12px}
.chat-log{
  display:flex;flex-direction:column;gap:12px;
  min-height:180px;padding:4px 0;
}
.msg{max-width:92%;line-height:1.5;font-size:14.5px}
.msg.user{
  align-self:flex-end;background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;border-radius:16px 16px 4px 16px;padding:10px 14px;
}
.msg.bot{
  align-self:flex-start;background:var(--card);border:1px solid var(--line);
  border-radius:16px 16px 16px 4px;padding:12px 14px;width:100%;max-width:100%;
}
.msg.bot .bot-head{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:12px;color:var(--muted)}
.msg.bot .bot-head .dot{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.msg.bot p{margin:0 0 8px}
.msg.bot .result-cards{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.msg.bot .result-cards .card{background:var(--bg2)}
.msg.bot .addall{margin-top:10px}
.msg.bot.thinking .bot-head .dot{animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.msg.error{border-color:rgba(239,68,68,.5)}

.chip-suggest{display:flex;gap:8px;flex-wrap:wrap}
.chat-inputrow{display:flex;gap:8px}
#chatInput{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:12px;
  color:var(--text);padding:12px 14px;font-size:15px;outline:none;
}
#chatInput:focus{border-color:var(--accent)}
#chatInput::placeholder{color:var(--muted2)}
.sendbtn{
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;
  border-radius:12px;padding:12px 20px;font-size:15px;font-weight:700;cursor:pointer;transition:.15s;
}
.sendbtn:hover{filter:brightness(1.1)}
.sendbtn:disabled{opacity:.5;cursor:default}

.ai-settings{
  background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:10px 14px;
  font-size:13px;color:var(--muted);
}
.ai-settings summary{cursor:pointer;font-weight:600}
.ai-settings-body{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.ai-settings a{color:var(--accent2)}
.keyrow{display:flex;gap:8px;flex-wrap:wrap}
#apiKey,#aiModel{
  flex:1;min-width:160px;background:var(--card);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:9px 11px;font-size:13px;outline:none;
}
#apiKey{min-width:200px}
#apiKey:focus,#aiModel:focus{border-color:var(--accent)}

/* ---------- Footer ---------- */
.foot{max-width:var(--maxw);margin:24px auto 0;padding:16px clamp(12px,4vw,28px);color:var(--muted2);font-size:12px;text-align:center}

/* ---------- Responsive ---------- */
@media (max-width:640px){
  .controls{top:70px}
  .card{gap:10px;padding:12px}
  .card .time{min-width:54px}
  .card .actions{flex-direction:column}
  .iconbtn{padding:8px 9px;font-size:12px}
  .brandtext p{display:none}
  .selwrap select{min-width:120px}
}

/* ---------- Print ---------- */
@media print{
  body{background:#fff;color:#000}
  .topbar,.controls,.planner-actions,.foot,.card .actions{display:none !important}
  .card{border:1px solid #ccc;break-inside:avoid;color:#000;background:#fff}
  .card .title{color:#000}
  .card .title-zh,.card .metaline,.muted{color:#333}
  .view{max-width:100%}
  .dayhead{color:#000}
}