:root{
  --navy:#0b2545; --navy-2:#13315c; --ink:#1b2430; --muted:#5b6b80;
  --line:#e3e8f0; --bg:#f4f7fb; --white:#fff; --accent:#2f6fed;
  --radius:22px; --shadow:0 12px 40px rgba(11,37,69,.16),0 2px 8px rgba(11,37,69,.08);
  --font-ui:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-head:"Space Grotesk","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font-ui);color:var(--ink);background:radial-gradient(1200px 600px at 50% -10%,#dfe8f7 0,var(--bg) 60%);-webkit-font-smoothing:antialiased}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 12px;border-radius:8px;z-index:99}
.skip:focus{left:8px}
.stage{min-height:100%;display:flex;flex-direction:column;align-items:center;padding:max(10vh,24px) 16px 24px}
.bar-wrap{position:relative;width:min(640px,100%);z-index:10;will-change:transform;transform:translate3d(0,0,0)}
.bar-wrap.homing{transition:transform .35s var(--ease)}
.bar{touch-action:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}
.grip{flex:none;display:grid;grid-template-columns:repeat(2,4px);gap:3px;padding:8px 2px 8px 8px;cursor:grab;touch-action:none}
.grip i{width:4px;height:4px;border-radius:50%;background:#b7c3d6}
/* touch long-press cue: slow lift over the 1s hold */
.bar-wrap.holding .bar{transform:scale(1.03);box-shadow:0 18px 50px rgba(11,37,69,.22),0 0 0 4px rgba(47,111,237,.14);transition:transform 1s linear,box-shadow 1s linear}
.bar-wrap.dragging .bar{transform:scale(1.04);box-shadow:0 24px 60px rgba(11,37,69,.28),0 0 0 4px rgba(47,111,237,.22);transition:transform .15s var(--ease),box-shadow .15s}
.bar-wrap.dragging .grip{cursor:grabbing}
body.drag-active,body.drag-active *{user-select:none!important;-webkit-user-select:none!important;cursor:grabbing!important}
body.drag-active{overflow:hidden;overscroll-behavior:none}
.bar{position:relative;z-index:2;display:flex;align-items:center;gap:6px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:6px;box-shadow:var(--shadow);transition:box-shadow .25s var(--ease),transform .25s var(--ease);transform-origin:center}
.bar:focus-within{box-shadow:0 0 0 4px rgba(47,111,237,.18),var(--shadow)}
.bar input{flex:1;min-width:0;border:0;outline:0;background:transparent;font:500 17px/1.3 var(--font-ui);color:var(--ink);padding:10px 4px}
.bar input::-webkit-search-cancel-button{display:none}
.hint{font:600 11px var(--font-ui);color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:3px 6px;white-space:nowrap}
.icon-btn{flex:none;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:0;cursor:pointer;background:transparent;color:var(--navy);transition:background .2s,transform .15s}
.icon-btn svg{width:22px;height:22px;fill:currentColor}
.icon-btn:hover{background:#eef2f8}
.icon-btn:active{transform:scale(.94)}
.icon-btn:focus-visible,.chip-btn:focus-visible,.sources a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.go{background:var(--navy);color:#fff}
.go:hover{background:var(--navy-2)}
.mic[aria-pressed="true"]{background:#e8414a;color:#fff;animation:pulse 1.2s infinite}
.mic.unsupported{opacity:.45}
.icon-btn.small{width:34px;height:34px}.icon-btn.small svg{width:18px;height:18px}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(232,65,74,.5)}100%{box-shadow:0 0 0 12px rgba(232,65,74,0)}}

.panel{position:absolute;left:0;right:0;top:calc(100% + 10px);display:flex;flex-direction:column;overflow:hidden;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 18px 0;transform-origin:top center;animation:drop .32s var(--ease);max-height:min(60vh,420px)}
.panel[hidden]{display:none}
@keyframes drop{from{opacity:0;transform:translateY(-8px) scaleY(.96)}to{opacity:1;transform:none}}
.panel.closing{animation:lift .2s var(--ease) forwards}
@keyframes lift{to{opacity:0;transform:translateY(-6px) scaleY(.97)}}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.panel-actions{display:flex;align-items:center;gap:6px}
.badge{font:600 11px/1 var(--font-ui);letter-spacing:.02em;color:#8a5a00;background:#fff4d6;border:1px solid #f2d68a;border-radius:999px;padding:5px 9px}
.chip-btn{font:600 13px var(--font-ui);color:var(--navy);background:#eef2f8;border:0;border-radius:999px;padding:8px 14px;cursor:pointer;min-height:34px}
.chip-btn:hover{background:#e1e8f3}
.panel-q{font:600 17px/1.3 var(--font-head);color:var(--navy);margin:6px 0 6px}
.answer{font-size:15px;line-height:1.55;color:var(--ink)}
.answer p{margin:0 0 8px}
.answer.loading{color:var(--muted)}
.dots::after{content:"";animation:dots 1s steps(4) infinite}
@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}
.sources{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 0;padding:0}
.sources a{display:inline-flex;align-items:center;gap:6px;max-width:240px;font:600 12.5px var(--font-ui);color:var(--navy);text-decoration:none;background:#f4f7fb;border:1px solid var(--line);border-radius:999px;padding:7px 12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sources a:hover{border-color:#c9d4e5;background:#eef2f8}
.sources .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}

.backdrop{position:fixed;inset:0;background:rgba(11,37,69,.35);backdrop-filter:blur(3px);z-index:5;animation:fade .25s}
@keyframes fade{from{opacity:0}}
body.expanded .panel{height:auto!important;position:fixed;inset:calc(max(10vh,24px) + 74px) max(16px,6vw) max(16px,4vh);max-height:none;padding:22px 28px;animation:grow .35s var(--ease);z-index:20}
body.expanded .panel-q{font-size:24px}
body.expanded .resize{display:none}
body.expanded .panel{padding-bottom:22px}
body.expanded .answer{font-size:17px;max-width:72ch}
body.expanded .bar-wrap{z-index:20}
@keyframes grow{from{opacity:.4;transform:scale(.97)}to{opacity:1;transform:none}}
.answer .more{display:none}
body.expanded .answer .more{display:block}

.foot{margin-top:auto;padding-top:40vh;font-size:12.5px;color:var(--muted);text-align:center}
.foot kbd{font:600 11px var(--font-ui);border:1px solid var(--line);border-radius:5px;padding:1px 5px;background:#fff}

@media (max-width:560px){
  .grip{padding-left:6px}
  .stage{padding-top:16px}
  .hint{display:none}
  .bar input{font-size:16px}
  .panel{max-height:65vh;padding:12px 14px 14px}
  body.expanded .panel{inset:86px 8px 8px;padding:16px}
  body.expanded .panel-q{font-size:20px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* ---- panel body + resize handle ---- */
.panel-body{flex:1 1 auto;min-height:0;overflow:auto;overscroll-behavior:contain;padding-bottom:6px}
.resize{flex:none;height:22px;margin:0 -18px;display:grid;place-items:center;cursor:ns-resize;touch-action:none;-webkit-tap-highlight-color:transparent}
.resize span{width:44px;height:5px;border-radius:999px;background:#c9d4e5;transition:background .2s,width .2s}
.resize:hover span,.resize:focus-visible span,.panel.sizing .resize span{background:var(--navy-2);width:56px}
.resize:focus-visible{outline:none}
body.resize-active,body.resize-active *{user-select:none!important;-webkit-user-select:none!important;cursor:ns-resize!important}
body.resize-active{overflow:hidden;overscroll-behavior:none}

/* ---- pop-out from the edge tab ---- */
.bar-wrap.pop-left>.bar{animation:popL .32s var(--ease)}
.bar-wrap.pop-right>.bar{animation:popR .32s var(--ease)}
@keyframes popL{from{opacity:0;transform:translateX(-40px) scale(.96)}}
@keyframes popR{from{opacity:0;transform:translateX(40px) scale(.96)}}
.bar-wrap[hidden]{display:none}

/* ---- edge dock tab ---- */
.tab{position:fixed;top:0;left:0;z-index:30;width:44px;height:60px;border:0;padding:0;display:grid;place-items:center;color:#fff;background:var(--navy);
  box-shadow:0 8px 24px rgba(11,37,69,.28);cursor:pointer;touch-action:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;user-select:none;
  will-change:transform;transform:translate3d(0,40vh,0)}
.tab.side-left{border-radius:0 16px 16px 0}
.tab.side-right{border-radius:16px 0 0 16px}
.tab.dragging{border-radius:16px;box-shadow:0 16px 40px rgba(11,37,69,.35);cursor:grabbing}
.tab.snapping{transition:transform .3s var(--ease),border-radius .3s}
.tab svg{width:22px;height:22px;fill:currentColor}
.tab .ic-min{display:none}
.tab[aria-expanded="true"]{background:var(--accent)}
.tab[aria-expanded="true"] .ic-open{display:none}
.tab[aria-expanded="true"] .ic-min{display:block}
.tab:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.tab[hidden]{display:none}
.tab.appear{animation:tabIn .3s var(--ease)}
@keyframes tabIn{from{opacity:0}}

/* ---- toast ---- */
.toast{position:fixed;left:50%;bottom:max(20px,env(safe-area-inset-bottom));transform:translateX(-50%);z-index:40;display:flex;align-items:center;gap:10px;
  width:max-content;max-width:calc(100vw - 24px);background:var(--navy);color:#fff;border-radius:16px;padding:10px 10px 10px 16px;font-size:14px;line-height:1.35;
  box-shadow:0 12px 40px rgba(11,37,69,.3);animation:toastIn .3s var(--ease)}
.toast[hidden]{display:none}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,12px)}}
.toast kbd{font:600 11px var(--font-ui);background:rgba(255,255,255,.15);border-radius:5px;padding:1px 5px}
.toast-btn{flex:none;font:600 13px var(--font-ui);color:var(--navy);background:#fff;border:0;border-radius:999px;padding:8px 12px;cursor:pointer;min-height:34px}
.toast-x{flex:none;width:30px;height:30px;border:0;border-radius:50%;background:transparent;color:#fff;cursor:pointer;font-size:14px}
.toast-x:hover{background:rgba(255,255,255,.15)}
@media (max-width:560px){.bar{gap:2px}.icon-btn.small{width:32px;height:32px}}