/* ===== MANUEL "Aurora Glass" interface ===== */
:root{
  --bg:#05060a; --side:rgba(12,14,22,.62); --surface:rgba(255,255,255,.045); --surface2:rgba(255,255,255,.075);
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.13);
  --text:#f1f4f8; --soft:#c3cad4; --muted:#7f8896;
  --ice:#7ce7ff; --ice-strong:#38d6ff; --violet:#9b7bff; --pink:#ff6fd8; --green:#3ddc97;
  --grad:linear-gradient(120deg,#7ce7ff 0%,#9b7bff 55%,#ff6fd8 100%);
  --grad-soft:linear-gradient(120deg,rgba(124,231,255,.22),rgba(155,123,255,.22) 55%,rgba(255,111,216,.18));
  --radius:18px;
}
html,body{background:var(--bg)}
body{overflow:hidden}

/* animated aurora backdrop: radial gradients + transforms only (cheap on phones) */
.aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;background:radial-gradient(120% 80% at 50% 120%,#0b1020 0%,#05060a 60%)}
.aurora i{position:absolute;width:70vmax;height:70vmax;border-radius:50%;opacity:.55;will-change:transform}
.aurora .a1{left:-20vmax;top:-30vmax;background:radial-gradient(circle,rgba(56,214,255,.38),rgba(56,214,255,0) 62%);animation:drift1 22s ease-in-out infinite alternate}
.aurora .a2{right:-25vmax;top:-10vmax;background:radial-gradient(circle,rgba(155,123,255,.34),rgba(155,123,255,0) 62%);animation:drift2 26s ease-in-out infinite alternate}
.aurora .a3{left:10vmax;bottom:-45vmax;background:radial-gradient(circle,rgba(61,220,151,.20),rgba(255,111,216,.10) 40%,rgba(0,0,0,0) 65%);animation:drift3 30s ease-in-out infinite alternate}
.aurora .grain{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 75%)}
@keyframes drift1{to{transform:translate(18vmax,12vmax) scale(1.15)}}
@keyframes drift2{to{transform:translate(-16vmax,18vmax) scale(.9)}}
@keyframes drift3{to{transform:translate(12vmax,-14vmax) scale(1.1)}}
.app{position:relative;z-index:1}

/* glass sidebar */
.sidebar{background:var(--side);border-right:1px solid var(--line);backdrop-filter:blur(22px) saturate(140%);-webkit-backdrop-filter:blur(22px) saturate(140%)}
.brand-text .wordmark{font-size:18px;letter-spacing:5px}
.wordmark{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:sheen 8s ease-in-out infinite}
@keyframes sheen{50%{background-position:100% 0}}
.ai-tag{color:#05060a;background:var(--grad);border:0;font-weight:700;padding:3px 7px;border-radius:7px}
.new-chat{position:relative;background:var(--grad-soft);border:1px solid rgba(124,231,255,.25);border-radius:14px;padding:12px 14px;font-weight:600;box-shadow:0 8px 30px -12px rgba(56,214,255,.5)}
.new-chat:hover{background:var(--grad-soft);border-color:rgba(124,231,255,.5);transform:translateY(-1px);box-shadow:0 12px 34px -10px rgba(155,123,255,.6)}
.new-chat svg{color:var(--ice)}
.search{background:var(--surface);border:1px solid var(--line);border-radius:14px}
.search:focus-within{border-color:rgba(124,231,255,.4);background:var(--surface2)}
.chat-item{border-radius:12px}
.chat-item:hover{background:var(--surface)}
.chat-item.active{background:var(--grad-soft);color:var(--text)}
.chat-item.active::before{background:var(--grad);width:3px}
.menu{background:rgba(20,22,32,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:14px}
.side-item{border-radius:12px}
.side-item:hover{background:var(--surface)}
.side-item svg{color:var(--ice)}
.side-item[aria-pressed="true"]{color:var(--text);background:rgba(124,231,255,.08)}
.credit{background:var(--surface);border:1px solid var(--line);border-radius:14px}
.credit-dot{background:var(--green);box-shadow:0 0 12px var(--green)}
.credit-handle{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* top bar */
.topbar.scrolled{background:rgba(5,6,10,.55);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom-color:var(--line)}
.chip-toggle{background:var(--surface);border:1px solid var(--line2);color:var(--soft);height:36px;padding:0 14px;font-weight:500}
.chip-toggle[aria-pressed="true"]{color:#05060a;background:var(--grad);border-color:transparent;box-shadow:0 0 22px -4px rgba(124,231,255,.7)}
.icon-btn{border-radius:12px}
.icon-btn:hover{background:var(--surface2)}

/* welcome hero */
.welcome{align-items:center;text-align:center;padding-top:7vh}
.orb{position:relative;width:118px;height:118px;margin-bottom:22px}
.orb-core{position:absolute;inset:14px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#ffffff 0%,#bdf4ff 12%,#38d6ff 34%,#7b5cff 66%,#2a1260 100%);box-shadow:0 0 50px rgba(56,214,255,.55),0 0 110px rgba(155,123,255,.45),inset -10px -14px 30px rgba(10,0,40,.6);animation:orbpulse 4.5s ease-in-out infinite}
.orb-ring{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 0deg,transparent 0 20%,rgba(124,231,255,.9) 32%,transparent 45% 60%,rgba(255,111,216,.85) 75%,transparent 88%);-webkit-mask:radial-gradient(circle,transparent 55px,#000 56px,#000 58px,transparent 59px);mask:radial-gradient(circle,transparent 55px,#000 56px,#000 58px,transparent 59px);animation:spin 6s linear infinite}
@keyframes orbpulse{50%{transform:scale(1.06);box-shadow:0 0 70px rgba(56,214,255,.7),0 0 140px rgba(155,123,255,.55),inset -10px -14px 30px rgba(10,0,40,.6)}}
@keyframes spin{to{transform:rotate(360deg)}}
.hello-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:var(--surface);border:1px solid var(--line2);font:500 11.5px "Geist Mono";letter-spacing:.6px;color:var(--soft);text-transform:uppercase;margin-bottom:16px}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(61,220,151,.7);animation:live 1.8s infinite}
@keyframes live{70%{box-shadow:0 0 0 8px rgba(61,220,151,0)}100%{box-shadow:0 0 0 0 rgba(61,220,151,0)}}
.welcome h1{font-size:clamp(40px,7vw,64px);font-weight:700;letter-spacing:-2.4px;line-height:1}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:sheen 6s ease-in-out infinite}
.welcome p{max-width:460px;margin:16px auto 30px;color:var(--soft);font-size:16px;line-height:1.5}
.starters{gap:12px}
.starter{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .2s,border-color .2s,background .2s}
.starter::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s}
.starter:hover{transform:translateY(-3px);background:var(--surface2);border-color:transparent}
.starter:hover::after{opacity:1}
.starter:active{transform:scale(.98)}
.st-ic{font-style:normal;font-size:20px;line-height:1;width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--grad-soft);border:1px solid var(--line2);margin-bottom:8px}
.starter b{font-weight:600;font-size:15px}
.welcome-credit{color:var(--muted)}

/* messages */
.msg{animation:rise .35s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(10px) scale(.99)}}
.msg.user .bubble{background:linear-gradient(135deg,rgba(56,214,255,.22),rgba(155,123,255,.26));border:1px solid rgba(155,123,255,.35);border-radius:22px 22px 6px 22px;padding:12px 16px;box-shadow:0 10px 30px -14px rgba(155,123,255,.6)}
.bot-avatar{display:flex!important;align-items:center;gap:8px}
.bot-avatar::before{content:"";width:16px;height:16px;border-radius:50%;background:radial-gradient(circle at 32% 28%,#fff,#7ce7ff 30%,#7b5cff 70%,#2a1260);box-shadow:0 0 12px rgba(56,214,255,.7)}
.wordmark.sm{font-size:11px}
.bot-body{background:rgba(255,255,255,.028);border:1px solid var(--line);border-radius:6px 22px 22px 22px;padding:14px 16px}
#thinking .bot-body{display:inline-block;padding:8px 16px}
.thinking span{background:var(--grad);opacity:.35}
.md strong{color:#fff}
.md a{color:var(--ice)}
.md blockquote{border-left:3px solid var(--violet)}
.md code{background:rgba(155,123,255,.12);border-color:rgba(155,123,255,.25)}
.codeblock{background:rgba(5,6,12,.75);border-color:var(--line2);border-radius:14px}
.actions{margin-left:-6px}
.actions button:hover{background:var(--surface2);color:var(--ice)}
.gen-image img{border-radius:18px;box-shadow:0 20px 50px -20px rgba(155,123,255,.6)}

/* composer: floating glass pill with glowing gradient border */
.composer-zone{position:relative}
.composer{position:relative;background:rgba(14,16,26,.7);border:1px solid var(--line2);border-radius:26px;padding:8px;backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);box-shadow:0 18px 50px -20px rgba(0,0,0,.8)}
.composer::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1.5px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.35;transition:opacity .25s;pointer-events:none}
.composer:focus-within{border-color:transparent;box-shadow:0 0 40px -10px rgba(124,231,255,.55),0 18px 50px -20px rgba(0,0,0,.8)}
.composer:focus-within::before{opacity:1}
.send{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#05060a;box-shadow:0 6px 20px -6px rgba(124,231,255,.8)}
.send:not(:disabled):hover{transform:scale(1.06)}
.send:disabled{background:var(--surface2);box-shadow:none}
.send.stop{background:var(--surface2);color:var(--text);box-shadow:none}
.icon-btn.attach,.mic{color:var(--soft)}
.mic.rec{background:linear-gradient(135deg,#ff4d6d,#ff6fd8);color:#fff}
.fineprint{color:var(--muted)}
.attach-chip{background:var(--surface2);border-radius:14px}

/* sheets, toast */
.sheet{background:rgba(3,4,8,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.sheet-card{background:rgba(16,18,28,.88);border:1px solid var(--line2);border-radius:26px;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:0 30px 80px -30px rgba(155,123,255,.5)}
.sheet-head small{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sheet textarea,.auth-form input{background:rgba(255,255,255,.05);border-radius:14px}
.sheet textarea:focus,.auth-form input:focus{border-color:rgba(124,231,255,.5)}
.primary{background:var(--grad);color:#05060a;border-radius:14px;font-weight:700;box-shadow:0 10px 30px -12px rgba(124,231,255,.7)}
.primary.ghost{background:transparent;color:var(--text);box-shadow:none}
.tab.active{background:var(--grad-soft);color:var(--text)}
.toast{background:var(--grad);color:#05060a;font-weight:600}

@media (max-width:860px){
  .sidebar{background:rgba(10,12,20,.9)}
  .welcome{padding-top:4vh}
  .orb{width:96px;height:96px;margin-bottom:16px}
  .orb-ring{-webkit-mask:radial-gradient(circle,transparent 44px,#000 45px,#000 47px,transparent 48px);mask:radial-gradient(circle,transparent 44px,#000 45px,#000 47px,transparent 48px)}
  .welcome h1{font-size:44px;letter-spacing:-1.8px}
  .welcome p{font-size:15px;margin:12px auto 22px}
  .starters{gap:9px}
  .starter{padding:13px;text-align:left}
  .st-ic{width:34px;height:34px;font-size:18px}
  .bot-body{padding:12px 14px}
  .composer{border-radius:24px}
}
@media (prefers-reduced-motion:reduce){
  .aurora i,.orb-core,.orb-ring,.wordmark,.grad,.live-dot{animation:none!important}
}
.ai-tag{color:#05060a!important;-webkit-text-fill-color:#05060a;font-weight:800}

/* ===== V.S.O.M welcome splash ===== */
.vsom{position:fixed;inset:0;z-index:999;display:grid;place-items:end center;padding:24px 24px max(9vh,48px);background:#03040a;overflow:hidden;transition:opacity .7s ease,transform .7s ease}
.vsom.out{opacity:0;transform:scale(1.04);pointer-events:none}
.vsom-stage{position:absolute;inset:0;overflow:hidden}
.vsom.shake .vsom-stage{animation:vsomShake .5s cubic-bezier(.36,.07,.19,.97)}
.vsom-zeus{position:absolute;left:50%;top:50%;width:max(100vw,55.814vh);aspect-ratio:768/1376;transform:translate(-50%,-50%) scale(1.14);filter:brightness(.08) saturate(.7);transition:transform 3.2s cubic-bezier(.2,.7,.2,1),filter 1.4s ease}
@media (min-aspect-ratio:4/5){.vsom-zeus{width:auto;height:100vh;-webkit-mask:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);mask:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent)}}
.vsom-zeus img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.vsom.rise .vsom-zeus{transform:translate(-50%,-50%) scale(1.02);filter:brightness(.8) saturate(.95)}
.vsom.sky .vsom-zeus{filter:brightness(1.35) saturate(.8)!important;transition:filter .05s}
.vsom.ready .vsom-zeus{filter:brightness(.62) saturate(.9);transform:translate(-50%,-50%) scale(1)}
.vsom-eye{position:absolute;width:7%;aspect-ratio:1;border-radius:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,#fff 0 12%,rgba(170,230,255,.95) 22%,rgba(90,170,255,.55) 45%,rgba(60,120,255,0) 72%);mix-blend-mode:screen;opacity:0;transition:opacity .5s ease}
.vsom-eye.e1{left:51.2%;top:29.6%}.vsom-eye.e2{left:56.9%;top:29.4%}
.vsom.eyes .vsom-eye{opacity:1;animation:vsomEye 1.6s ease-in-out infinite}
.vsom-fist{position:absolute;left:37%;top:11.4%;width:20%;aspect-ratio:1;border-radius:50%;transform:translate(-50%,-50%) scale(.4);background:radial-gradient(circle,rgba(255,255,255,.95) 0 8%,rgba(150,215,255,.7) 25%,rgba(80,140,255,0) 70%);mix-blend-mode:screen;opacity:0;transition:opacity .4s,transform .9s ease}
.vsom.charge .vsom-fist{opacity:1;transform:translate(-50%,-50%) scale(1);animation:vsomEye .18s steps(2) infinite}
.vsom-glow{position:absolute;aspect-ratio:1;border-radius:50%;transform:translate(-50%,-50%);mix-blend-mode:screen;opacity:0;pointer-events:none;background:radial-gradient(circle,rgba(225,215,255,.85) 0,rgba(150,130,255,.45) 30%,rgba(90,160,255,.18) 55%,rgba(60,90,255,0) 72%);transition:opacity .9s ease}
.vsom-glow.g1{left:80%;top:30%;width:70%}.vsom-glow.g2{left:16%;top:52%;width:62%}.vsom-glow.g3{left:72%;top:78%;width:80%}.vsom-glow.g4{left:88%;top:10%;width:50%}.vsom-glow.g5{left:24%;top:82%;width:66%}
.vsom-glow.on{opacity:1;transition:opacity .04s}
.vsom.rise .vsom-glow:not(.on){opacity:.18}
.vsom-rain{position:absolute;inset:-20% 0 0;background:repeating-linear-gradient(104deg,transparent 0 46px,rgba(200,225,255,.10) 46px 47px,transparent 47px 91px);background-size:100% 220px;animation:vsomRain .45s linear infinite;opacity:.55;mix-blend-mode:screen;pointer-events:none}
.vsom-mist{position:absolute;left:-30%;right:-30%;height:45%;bottom:-8%;background:radial-gradient(50% 60% at 30% 60%,rgba(150,170,210,.22),transparent 70%),radial-gradient(45% 55% at 75% 50%,rgba(130,150,200,.18),transparent 70%);filter:blur(18px);pointer-events:none;animation:vsomMist 18s ease-in-out infinite alternate}
.vsom-mist.m2{bottom:6%;height:35%;opacity:.7;animation-duration:26s;animation-direction:alternate-reverse}
@keyframes vsomRain{to{background-position:-40px 220px}}
@keyframes vsomMist{from{transform:translateX(-8%)}to{transform:translateX(8%)}}
.vsom-bolt{position:absolute;inset:0;width:100%;height:100%;mix-blend-mode:screen;pointer-events:none}
.vsom-flash{position:absolute;inset:0;background:radial-gradient(120% 90% at 40% 15%,#fff,#cfe9ff 40%,rgba(160,200,255,.6));opacity:0;pointer-events:none}
.vsom-flash.go{animation:vsomFlash .7s ease-out}
.vsom-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,4,10,.15) 0,rgba(3,4,10,0) 40%,rgba(3,4,10,.78) 72%,rgba(3,4,10,.95));opacity:.6;transition:opacity 1s}
.vsom.ready .vsom-shade{opacity:1}
.vsom-inner{position:relative;text-align:center;max-width:560px;pointer-events:none}
.vsom.ready .vsom-inner{pointer-events:auto}
.vsom-kicker{font:500 12px/1 "Geist Mono",monospace;letter-spacing:.42em;color:#cfe3ff;margin:0 0 18px;opacity:0}
.vsom-title{font:700 clamp(42px,11vw,88px)/.98 Geist,system-ui,sans-serif;letter-spacing:-.035em;margin:0;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:0;filter:drop-shadow(0 0 24px rgba(124,231,255,.25))}
.vsom-mark{font:600 clamp(18px,5vw,26px)/1 "Geist Mono",monospace;letter-spacing:.5em;margin:22px 0 0;padding-left:.5em;color:#fff;text-shadow:0 0 18px rgba(124,231,255,.6);opacity:0}
.vsom-btn{margin-top:36px;border:1px solid rgba(160,215,255,.45);background:rgba(10,16,30,.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:#fff;font:600 16px/1 Geist,system-ui,sans-serif;padding:16px 26px;border-radius:999px;cursor:pointer;opacity:0;box-shadow:0 0 22px rgba(124,231,255,.18);transition:background .2s,box-shadow .3s}
.vsom.ready .vsom-kicker{animation:vsomUp .7s .05s ease forwards}
.vsom.ready .vsom-title{animation:vsomUp .9s .2s ease forwards}
.vsom.ready .vsom-mark{animation:vsomUp .9s .55s ease forwards}
.vsom.ready .vsom-btn{animation:vsomUp .8s .85s ease forwards}
.vsom-btn:hover,.vsom-btn:focus-visible{background:rgba(124,231,255,.18);box-shadow:0 0 32px rgba(124,231,255,.4);outline:none}
@keyframes vsomUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes vsomEye{0%,100%{filter:brightness(1)}50%{filter:brightness(1.6)}}
@keyframes vsomFlash{0%{opacity:0}6%{opacity:1}18%{opacity:.35}26%{opacity:.9}100%{opacity:0}}
@keyframes vsomShake{10%,90%{transform:translate(-2px,1px)}20%,80%{transform:translate(5px,-3px)}30%,50%,70%{transform:translate(-8px,4px)}40%,60%{transform:translate(8px,-4px)}100%{transform:none}}
@media (prefers-reduced-motion:reduce){.vsom-inner *{animation:none!important;opacity:1!important}.vsom-zeus{transition:none!important}}