/* Yudu MVP app */
html,body{height:100%}
body{min-height:100svh;overflow-x:hidden}
.bg{position:fixed;inset:0;width:100%;height:100%;object-fit:cover;opacity:.32;z-index:-2;filter:blur(1px)}
.bg-veil{position:fixed;inset:0;z-index:-1;background:radial-gradient(ellipse at 50% 38%,rgba(0,0,0,.35),#000 78%)}

.top{position:fixed;inset:0 0 auto 0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:calc(14px + env(safe-area-inset-top)) 16px 14px}
.brand{display:flex;align-items:center;gap:10px;font-size:13px}
.brand .mark{width:24px;height:24px}
.top-r{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--ink-2);background:rgba(0,0,0,.4);backdrop-filter:blur(10px)}
.icon-btn:hover{color:#fff;border-color:#fff}
.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);font-size:12px;color:var(--ink-3);background:rgba(0,0,0,.4);backdrop-filter:blur(10px)}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--ink-4)}
.pill.on{color:#fff;border-color:rgba(255,255,255,.4)}
.pill.on i{background:#fff;box-shadow:0 0 10px #fff}

.screen{min-height:100svh;padding:calc(90px + env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom));max-width:620px;margin:0 auto}

/* ---------- onboarding ---------- */
.ob-progress{height:2px;background:var(--line);border-radius:2px;margin-bottom:8vh;overflow:hidden}
.ob-progress i{display:block;height:100%;width:20%;background:#fff;box-shadow:0 0 12px #fff;transition:width .6s var(--ease)}
.ob-step{display:none;animation:stepIn .7s var(--ease)}
.ob-step.active{display:block}
@keyframes stepIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.ob-step h1{font-weight:200;font-size:clamp(32px,8vw,48px);line-height:1.1;letter-spacing:-.015em;margin:14px 0 30px}
.ob-step h1 b{font-weight:400}
.hero-mark{width:72px;height:72px;margin-bottom:28px;filter:drop-shadow(0 0 18px rgba(255,255,255,.4))}
.field{width:100%;background:transparent;border:0;border-bottom:1px solid var(--ink-4);color:#fff;font:inherit;font-size:22px;font-weight:300;padding:12px 0;outline:none;transition:border-color .3s;border-radius:0}
.field:focus{border-color:#fff}
.field.mono{font-family:ui-monospace,Menlo,monospace;font-size:14px}
.lbl{display:block;margin:26px 0 2px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.lbl small{display:block;text-transform:none;letter-spacing:0;font-size:12px;color:var(--ink-4);margin-top:2px}
.hint,.sub{color:var(--ink-3);font-size:14px;margin-top:14px}
.sub{color:var(--ink-2);font-size:15px;margin:-10px 0 20px}
.row{display:flex;gap:12px;margin-top:36px}
.row .btn{flex:1;justify-content:center}
.ob-step>.btn.next{margin-top:36px;width:100%;justify-content:center}
.linkish{display:block;margin:18px auto 0;color:var(--ink-3);font-size:13px;text-decoration:underline;text-underline-offset:4px}
.err{color:#fff;font-size:13px;margin-top:12px;min-height:1em;opacity:.8}

.personas{display:grid;gap:12px}
.persona{display:grid;grid-template-columns:44px 1fr;grid-template-rows:auto auto;column-gap:16px;align-items:center;text-align:left;padding:18px;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);transition:all .35s var(--ease)}
.persona .orb{grid-row:1/3;width:40px;height:40px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff,rgba(255,255,255,.12) 62%,transparent 72%);opacity:.5;transition:all .4s}
.persona b{font-weight:400;font-size:18px}
.persona small{color:var(--ink-3);font-size:13px}
.persona.sel{border-color:#fff;background:var(--panel-2)}
.persona.sel .orb{opacity:1;box-shadow:var(--glow);animation:breathe 3s ease-in-out infinite}
@keyframes breathe{50%{transform:scale(.85)}}

.keybox{margin-bottom:20px}
.enroll{border:1px solid var(--line);border-radius:22px;padding:26px 20px;background:var(--panel);text-align:center}
.ring-prog{position:relative;width:120px;height:120px;margin:0 auto 18px}
.ring-prog svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring-prog circle{fill:none;stroke-width:3}
.ring-prog .trk{stroke:var(--line)}
.ring-prog .val{stroke:#fff;stroke-linecap:round;stroke-dasharray:339.3;stroke-dashoffset:339.3;transition:stroke-dashoffset .3s;filter:drop-shadow(0 0 6px #fff)}
.ring-prog span{position:absolute;inset:0;display:grid;place-items:center;font-size:22px;font-weight:200}
.read{font-size:19px;line-height:1.45;min-height:3em;color:#fff}
.read.dim{color:var(--ink-3);font-size:15px}
.meter{width:100%;height:40px;margin-top:14px}

/* ---------- live ---------- */
#live{display:flex;flex-direction:column;padding-top:calc(70px + env(safe-area-inset-top))}
#live[hidden]{display:none}
.stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:44svh;text-align:center}
.orb-wrap{position:relative;width:min(56vw,250px);aspect-ratio:1;display:grid;place-items:center;cursor:pointer;-webkit-tap-highlight-color:transparent}
.big-mark{width:62%;height:62%;position:relative;z-index:3;transition:filter .5s,opacity .5s,transform .4s var(--ease);opacity:.55}
.halo{position:absolute;inset:8%;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 65%);opacity:0;transition:opacity .5s,transform .12s}
.rip{position:absolute;inset:19%;border-radius:50%;border:1px solid rgba(255,255,255,.5);opacity:0}
.orb-wrap[data-state="standby"] .big-mark{opacity:.8;animation:idle 4.5s ease-in-out infinite}
@keyframes idle{50%{opacity:.5;transform:scale(.97)}}
.orb-wrap[data-state="connecting"] .big-mark,.orb-wrap[data-state="capturing"] .big-mark,.orb-wrap[data-state="speaking"] .big-mark{opacity:1;filter:drop-shadow(0 0 16px #fff) drop-shadow(0 0 48px rgba(255,255,255,.55))}
.orb-wrap[data-state="connecting"] .halo,.orb-wrap[data-state="capturing"] .halo,.orb-wrap[data-state="speaking"] .halo{opacity:1}
.orb-wrap[data-state="connecting"] .big-mark{animation:pulse .7s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(.94)}}
.orb-wrap[data-state="speaking"] .rip{animation:ripple 2.1s var(--ease) infinite}
.orb-wrap[data-state="speaking"] .r2{animation-delay:.7s}.orb-wrap[data-state="speaking"] .r3{animation-delay:1.4s}
@keyframes ripple{0%{opacity:.8;transform:scale(1)}100%{opacity:0;transform:scale(2.1)}}
.orb-wrap.blocked .big-mark{animation:reject .45s}
.orb-wrap.blocked .halo{opacity:0!important}
@keyframes reject{20%{transform:translateX(-8px)}40%{transform:translateX(7px)}60%{transform:translateX(-5px)}80%{transform:translateX(3px)}}
.state-line{margin-top:30px;font-size:clamp(20px,5vw,26px);font-weight:300;letter-spacing:-.01em}
.state-sub{margin-top:6px;color:var(--ink-3);font-size:14px;min-height:1.4em}

.dock{display:flex;flex-direction:column;gap:14px}
.iso-card{border:1px solid var(--line);border-radius:var(--r);padding:14px 16px 12px;background:rgba(0,0,0,.5);backdrop-filter:blur(12px)}
.iso-card.off{opacity:.45}
.iso-head{display:flex;justify-content:space-between;align-items:baseline}
.iso-head b{font-weight:300;font-size:20px;font-variant-numeric:tabular-nums}
#spark{width:100%;height:44px;margin:6px 0 6px}
.iso-legend{display:flex;gap:16px;font-size:11px;color:var(--ink-3);align-items:center}
.iso-legend i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:0}
.iso-legend .me{background:#fff;box-shadow:0 0 6px #fff}
.iso-legend .them{border:1px dashed var(--ink-3)}
.iso-legend .blocked{margin-left:auto;font-variant-numeric:tabular-nums}

.transcript{max-height:30svh;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:2px;scroll-behavior:smooth;-webkit-mask-image:linear-gradient(transparent,#000 18px)}
.transcript:empty{display:none}
.line{padding:10px 14px;border-radius:16px;font-size:15px;max-width:88%;animation:stepIn .4s var(--ease)}
.line.user{align-self:flex-end;background:#fff;color:#000;border-bottom-right-radius:5px}
.line.agent{align-self:flex-start;background:var(--panel-2);border:1px solid var(--line);border-bottom-left-radius:5px}
.line.sys{align-self:center;background:transparent;color:var(--ink-3);font-size:12px;letter-spacing:.04em;padding:4px 10px;border:1px dashed var(--ink-4)}
.line.action{align-self:flex-start;border:1px solid rgba(255,255,255,.6);font-size:13px;letter-spacing:.02em}

.controls{display:flex;gap:10px}
.controls .btn{flex:1;justify-content:center}
.fine{text-align:center;color:var(--ink-4);font-size:11px;letter-spacing:.04em}

/* ---------- settings ---------- */
.sheet{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);display:flex;justify-content:flex-end}
.sheet[hidden]{display:none}
.sheet-card{width:min(460px,100%);height:100%;overflow-y:auto;background:#050505;border-left:1px solid var(--line);padding:calc(20px + env(safe-area-inset-top)) 22px 40px;animation:slide .45s var(--ease)}
@keyframes slide{from{transform:translateX(40px);opacity:0}}
.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.sheet-head h2{font-weight:300;font-size:24px}
.sheet .field{font-size:17px}
.seg{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;margin-top:8px}
.seg button{flex:1;padding:9px;border-radius:999px;font-size:13px;color:var(--ink-3)}
.seg button.on{background:#fff;color:#000}
input[type=range]{width:100%;margin-top:12px;accent-color:#fff}
.mem{list-style:none;margin-top:10px;display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--ink-2)}
.mem li{padding:8px 12px;border:1px solid var(--line);border-radius:12px}
.mem li.empty{border-style:dashed;color:var(--ink-4)}
.sheet-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:30px}
.sheet-actions .btn{justify-content:center;padding:12px 10px;font-size:13px}
.sheet-actions .btn.solid{grid-column:1/-1}
.btn.danger:hover{background:#fff;color:#000}

.toast{position:fixed;left:50%;top:calc(76px + env(safe-area-inset-top));transform:translate(-50%,-20px);opacity:0;z-index:80;padding:12px 20px;border-radius:999px;background:#fff;color:#000;font-size:14px;transition:all .45s var(--ease);pointer-events:none;max-width:calc(100% - 32px);text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (min-width:900px){
  #live{max-width:1100px;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
  .stage{min-height:70svh}
  .transcript{max-height:40svh}
}

/* standby mode card */
.iso-card .seg{margin-top:10px}
.mode-note{margin-top:10px;font-size:12.5px;color:var(--ink-3);line-height:1.5}
.live-dot{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);display:inline-flex;align-items:center;gap:6px}
.live-dot.on{color:#fff}
.live-dot.on::before{content:"";width:7px;height:7px;border-radius:50%;background:#fff;box-shadow:0 0 10px #fff;animation:breathe 1.6s ease-in-out infinite}