/* ═══════ Nebula — themes ═══════ */
:root{--font:'Inter',-apple-system,'Segoe UI',system-ui,sans-serif}
[data-theme=night]{
  --bg:#0b1026; --bg2:#141b3d; --panel:rgba(17,23,52,.92); --panel-br:#2b3568;
  --ink:#e8ecff; --ink-dim:#96a0cf; --accent:#8ea2ff; --accent2:#c77dff;
  --glow:rgba(142,162,255,.55); --halo:rgba(90,110,255,.16);
  --card:#1a2148; --line:#39406e; --danger:#ff7b93; --ok:#63e6be;
  --star:.9; --input:#131a3e;
}
[data-theme=day]{
  --bg:#eef1fb; --bg2:#dfe5f8; --panel:rgba(255,255,255,.94); --panel-br:#c9d2ef;
  --ink:#232a4d; --ink-dim:#6b74a3; --accent:#4f63d2; --accent2:#9b5de5;
  --glow:rgba(79,99,210,.35); --halo:rgba(79,99,210,.10);
  --card:#f4f6ff; --line:#b9c3e8; --danger:#d6336c; --ok:#0ca678;
  --star:.18; --input:#fff;
}
*{box-sizing:border-box;margin:0}
.hidden{display:none!important}
html,body{height:100%;overflow:hidden}
body{font-family:var(--font);background:radial-gradient(1200px 800px at 70% -10%,var(--bg2),var(--bg) 60%);color:var(--ink)}
button{font-family:inherit}

/* ═══ top bar ═══ */
#topbar{position:fixed;inset:0 0 auto 0;height:52px;display:flex;align-items:center;
 justify-content:space-between;padding:0 14px;z-index:40;
 background:var(--panel);border-bottom:1px solid var(--panel-br);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.06em;font-size:17px}
.brand-orb{width:16px;height:16px;border-radius:50%;
 background:radial-gradient(circle at 35% 35%,#fff,var(--accent) 45%,var(--accent2));
 box-shadow:0 0 14px var(--glow)}
.top-actions{display:flex;align-items:center;gap:6px;position:relative}
.icon-btn{background:none;border:1px solid transparent;color:var(--ink);font-size:15px;
 padding:7px 9px;border-radius:10px;cursor:pointer;text-decoration:none;position:relative}
.icon-btn:hover{background:var(--card);border-color:var(--panel-br)}
.badge{position:absolute;top:1px;right:1px;min-width:16px;height:16px;border-radius:8px;
 background:var(--danger);color:#fff;font-size:10px;line-height:16px;text-align:center;padding:0 4px}
#searchBox{background:var(--input);border:1px solid var(--panel-br);color:var(--ink);
 border-radius:10px;padding:8px 12px;width:220px;font-size:13px;outline:none}
#searchBox:focus{border-color:var(--accent)}
.dropdown{position:absolute;top:44px;right:10px;background:var(--panel);border:1px solid var(--panel-br);
 border-radius:12px;min-width:260px;max-height:340px;overflow:auto;z-index:60;box-shadow:0 10px 40px rgba(0,0,0,.35)}
.dropdown a{display:block;padding:9px 14px;color:var(--ink);text-decoration:none;font-size:13px;border-bottom:1px solid var(--panel-br)}
.dropdown a:hover{background:var(--card)}

/* ═══ canvas ═══ */
#sky{position:fixed;inset:0;touch-action:none;cursor:grab}
#sky.grabbing{cursor:grabbing}
#sky.linkmode{cursor:crosshair}
#hint{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);color:var(--ink-dim);
 font-size:11.5px;opacity:.75;z-index:5;pointer-events:none;white-space:nowrap}
@media(max-width:760px){#hint{display:none}}

/* ═══ side panels ═══ */
.panel{position:fixed;top:52px;right:0;bottom:0;width:340px;max-width:92vw;z-index:30;
 background:var(--panel);border-left:1px solid var(--panel-br);backdrop-filter:blur(12px);
 display:flex;flex-direction:column;animation:slidein .18s ease}
@keyframes slidein{from{transform:translateX(30px);opacity:0}}
.panel-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;
 border-bottom:1px solid var(--panel-br);font-weight:600}
.close{background:none;border:none;color:var(--ink-dim);font-size:15px;cursor:pointer}
.panel-body{padding:14px 16px;overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:12px}
.big-input{width:100%;background:var(--input);border:1px solid var(--panel-br);color:var(--ink);
 border-radius:10px;padding:11px 12px;font-size:16px;font-weight:600;outline:none}
.big-input:focus{border-color:var(--accent)}
.chiprow{display:flex;gap:6px;flex-wrap:wrap}
.chip{background:var(--card);border:1px solid var(--panel-br);color:var(--ink-dim);
 border-radius:999px;padding:5px 13px;font-size:12px;cursor:pointer}
.chip.sel{background:var(--accent);color:#fff;border-color:var(--accent)}
.field{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--ink-dim)}
.field>span{text-transform:uppercase;letter-spacing:.08em;font-size:10.5px}
.field input,.field textarea{background:var(--input);border:1px solid var(--panel-br);color:var(--ink);
 border-radius:9px;padding:9px 10px;font-size:13.5px;font-family:inherit;outline:none;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--accent)}
.fieldrow{display:flex;gap:10px}.fieldrow .field{flex:1}
.btn{background:var(--card);border:1px solid var(--panel-br);color:var(--ink);border-radius:10px;
 padding:9px 14px;font-size:13px;cursor:pointer;text-align:center;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.danger{color:var(--danger)}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#0b1026;font-weight:600}
.btn.small{padding:5px 10px;font-size:12px}
.muted{color:var(--ink-dim);font-size:12px}
#fileList{display:flex;flex-direction:column;gap:6px}
#fileList a{color:var(--accent);font-size:13px;text-decoration:none;word-break:break-all}
#fileList .frow{display:flex;gap:8px;align-items:center;justify-content:space-between;background:var(--card);
 border:1px solid var(--panel-br);border-radius:9px;padding:7px 10px}
#fileList .frow button{background:none;border:none;color:var(--danger);cursor:pointer}
.file-btn{cursor:pointer;font-size:12px}
hr{border:none;border-top:1px solid var(--panel-br)}
code{color:var(--accent);font-size:12px;word-break:break-all}

/* waiting/inbox/archive rows */
.item{background:var(--card);border:1px solid var(--panel-br);border-radius:12px;
 padding:11px 13px;margin-bottom:9px;cursor:pointer}
.item:hover{border-color:var(--accent)}
.item .lbl{font-size:14px;font-weight:600;margin-bottom:3px}
.item .meta{font-size:11.5px;color:var(--ink-dim);display:flex;gap:10px;flex-wrap:wrap}
.item.overdue{border-left:3px solid var(--danger)}
.item.soon{border-left:3px solid #f59f00}
.item .rowbtns{display:flex;gap:6px;margin-top:8px}
.empty{color:var(--ink-dim);font-size:13px;text-align:center;padding:24px 8px}

/* toast */
#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(80px);
 background:var(--card);color:var(--ink);border:1px solid var(--panel-br);border-radius:12px;
 padding:11px 20px;font-size:13.5px;z-index:80;opacity:0;transition:all .25s;box-shadow:0 8px 30px rgba(0,0,0,.4)}
#toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ═══ login ═══ */
.auth-body{display:flex;align-items:center;justify-content:center}
#stars{position:fixed;inset:0}
.auth-card{position:relative;z-index:2;background:var(--panel);border:1px solid var(--panel-br);
 border-radius:22px;padding:44px 40px 26px;width:340px;text-align:center;backdrop-filter:blur(14px);
 box-shadow:0 20px 80px rgba(0,0,0,.5)}
.auth-orb{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;
 background:radial-gradient(circle at 35% 35%,#fff,var(--accent) 45%,var(--accent2) 90%);
 box-shadow:0 0 40px var(--glow);animation:pulse 4s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 60px var(--glow)}}
.auth-card h1{font-weight:700;letter-spacing:.1em}
.auth-sub{color:var(--ink-dim);font-size:13px;margin:4px 0 22px}
.auth-card input{display:block;width:100%;margin-bottom:12px;background:var(--input);
 border:1px solid var(--panel-br);border-radius:11px;padding:12px 14px;color:var(--ink);font-size:14px;outline:none}
.auth-card input:focus{border-color:var(--accent)}
.auth-card button{width:100%;padding:12px;border:none;border-radius:11px;font-size:15px;font-weight:700;
 cursor:pointer;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.auth-err{color:var(--danger);font-size:12.5px;min-height:16px;margin-top:10px}
.auth-foot{color:var(--ink-dim);font-size:10.5px;margin-top:18px;letter-spacing:.05em}

/* ═══ health page ═══ */
.health-body{overflow-y:auto;padding:70px 20px 40px;display:block}
.health-wrap{max-width:980px;margin:0 auto}
.hgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin:18px 0}
.hcard{background:var(--card);border:1px solid var(--panel-br);border-radius:16px;padding:18px}
.hcard .k{font-size:11px;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
.hcard .v{font-size:26px;font-weight:700}
.hcard .s{font-size:12px;color:var(--ink-dim);margin-top:4px}
.meter{height:8px;border-radius:4px;background:var(--bg2);margin-top:10px;overflow:hidden}
.meter i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.meter i.hot{background:var(--danger)}
.blist{list-style:none;font-size:13px}
.blist li{padding:8px 12px;border-bottom:1px solid var(--panel-br);display:flex;justify-content:space-between}
.ok-dot{color:var(--ok)} .bad-dot{color:var(--danger)}

/* ═══ AI helper chat ═══ */
#chatLog{flex:1;overflow-y:auto;padding:14px 14px 6px;display:flex;flex-direction:column;gap:9px}
.msg{max-width:88%;padding:9px 13px;border-radius:14px;font-size:13.5px;line-height:1.5}
.msg.bot{background:var(--card);border:1px solid var(--panel-br);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:var(--accent);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.typing{opacity:.6}
#chatQuick{display:flex;flex-wrap:wrap;gap:6px;padding:8px 14px}
#chatRow{display:flex;gap:8px;padding:10px 14px 14px;border-top:1px solid var(--panel-br)}
#chatRow input{flex:1;background:var(--input);border:1px solid var(--panel-br);color:var(--ink);
 border-radius:10px;padding:10px 12px;font-size:13.5px;outline:none}
#chatRow input:focus{border-color:var(--accent)}
#chatRow button{background:var(--accent);border:none;color:#fff;border-radius:10px;
 width:42px;font-size:15px;cursor:pointer}

/* ═══ guided tour ═══ */
#tourMask{position:fixed;inset:0;background:rgba(4,6,18,.55);z-index:90;backdrop-filter:blur(1px)}
#tourBubble{position:fixed;width:340px;z-index:95;background:var(--panel);border:1px solid var(--accent);
 border-radius:16px;padding:18px;box-shadow:0 14px 60px rgba(0,0,0,.55)}
#tourBubble::before{content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);
 width:13px;height:13px;background:var(--panel);border-left:1px solid var(--accent);border-top:1px solid var(--accent)}
#tourTitle{font-weight:700;font-size:16px;margin-bottom:7px;color:var(--accent)}
#tourText{font-size:13.5px;line-height:1.55;color:var(--ink)}
#tourFoot{display:flex;justify-content:space-between;align-items:center;margin-top:14px}
#tourStep{font-size:11.5px;color:var(--ink-dim)}
#tourFoot>div{display:flex;gap:6px}
.tour-hi{outline:3px solid var(--accent2)!important;outline-offset:3px;border-radius:12px;
 box-shadow:0 0 30px var(--glow)!important;position:relative;z-index:94}

/* ═══ first-run welcome ═══ */
#welcome{position:fixed;inset:0;background:rgba(4,6,18,.62);z-index:100;display:flex;
 align-items:center;justify-content:center;backdrop-filter:blur(3px)}
.wc-card{background:var(--panel);border:1px solid var(--panel-br);border-radius:24px;
 padding:40px 44px 30px;max-width:440px;text-align:center;box-shadow:0 30px 90px rgba(0,0,0,.6)}
.wc-card h2{margin-bottom:10px}
.wc-card p{color:var(--ink-dim);font-size:14px;line-height:1.6;margin-bottom:22px}
.wc-btns{display:flex;gap:10px;justify-content:center}

/* ═══ tooltips ═══ */
#tip{position:fixed;z-index:120;background:var(--panel);color:var(--ink);border:1px solid var(--accent);
 border-radius:10px;padding:8px 12px;font-size:12.5px;line-height:1.45;max-width:280px;
 pointer-events:none;opacity:0;transition:opacity .12s;box-shadow:0 8px 28px rgba(0,0,0,.45);
 white-space:pre-line;backdrop-filter:blur(8px)}
#tip.show{opacity:1}