/* Geometry Impression · translated call
   Palette: deep graphite + warm champagne brass, like walnut and brushed hardware */
:root{
  --stage:#0b0b0c; --panel:#141416; --panel-2:#1c1c1f; --ink:#f3efe7; --muted:#a39c90; --line:#2b2925;
  --bubble:rgba(16,16,18,.66); --bubble-me:rgba(58,46,28,.72);
  --accent:#c9a46a; --accent-2:#e6cc9c; --accent-ink:#1a1307; --danger:#d9534f; --warn:#e8a65a;
  --font:"Inter","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --serif:"Cormorant Garamond","Songti SC","Noto Serif SC",Georgia,serif;
  --fs:17px;
  color-scheme:dark;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{background:var(--stage);color:var(--ink);font-family:var(--font);font-size:15px;overflow:hidden;-webkit-font-smoothing:antialiased}
button,select,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;transition:transform .15s ease,background .2s ease,border-color .2s ease,opacity .2s}
button:active{transform:scale(.97)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none!important}

/* ---------- Join / ended screens ---------- */
#join,#ended{
  height:100%;overflow-y:auto;display:flex;align-items:center;justify-content:center;
  padding:28px 16px calc(28px + env(safe-area-inset-bottom,0px));
  background:
    radial-gradient(900px 520px at 85% -10%,rgba(201,164,106,.16),transparent 60%),
    radial-gradient(700px 480px at -10% 110%,rgba(201,164,106,.09),transparent 60%),
    repeating-linear-gradient(135deg,rgba(255,255,255,.012) 0 1px,transparent 1px 22px),
    var(--stage);
}
.card{width:100%;max-width:440px;display:flex;flex-direction:column;gap:20px}
.panel{
  background:linear-gradient(180deg,rgba(28,28,31,.92),rgba(18,18,20,.92));
  border:1px solid var(--line);border-radius:22px;padding:30px 24px 24px;
  box-shadow:0 30px 80px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.04);
  position:relative;
}
.panel::before{content:"";position:absolute;left:24px;right:24px;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.7}
.form{display:flex;flex-direction:column;gap:20px}

.brand{display:flex;align-items:center;gap:12px}
.brand .mark{width:38px;height:38px;flex:none;fill:none;stroke:var(--accent);stroke-width:1.4}
.brand .mark circle{fill:var(--accent);stroke:none}
.brand-name{font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:.04em;line-height:1.1;color:var(--ink)}
.brand-tag{font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin-top:3px}
.card h1{margin:4px 0 0;font-family:var(--serif);font-weight:500;font-size:34px;line-height:1.12;letter-spacing:.005em;text-wrap:balance}
.card p{margin:0;color:var(--muted);line-height:1.65}

.field{display:flex;flex-direction:column;gap:9px}
.field > span{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.selwrap{position:relative;display:block}
.selwrap::after{content:"";position:absolute;right:18px;top:50%;width:8px;height:8px;border-right:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:translateY(-70%) rotate(45deg);pointer-events:none}
[dir="rtl"] .selwrap::after{right:auto;left:18px}
#langSel{width:100%;appearance:none;-webkit-appearance:none;background:var(--panel-2);border:1px solid var(--line);border-radius:14px;padding:15px 44px 15px 16px;font-size:17px;font-weight:600;color:var(--ink)}
#langSel:focus{border-color:var(--accent);outline:none}
#langSel option{background:#1c1c1f;color:var(--ink)}
.auto{font-size:12px;color:var(--accent-2);opacity:.8}

.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.seg.two{grid-template-columns:1fr 1fr}
.seg button{border:1px solid var(--line);background:var(--panel-2);border-radius:14px;padding:14px 8px;font-weight:600;display:flex;flex-direction:column;align-items:center;gap:3px}
.seg button small{font-weight:400;color:var(--muted);font-size:11.5px}
.seg button[aria-pressed="true"]{border-color:var(--accent);background:linear-gradient(180deg,rgba(201,164,106,.18),rgba(201,164,106,.06));box-shadow:0 0 0 1px rgba(201,164,106,.25) inset}
.primary{border:none;background:linear-gradient(180deg,var(--accent-2),var(--accent));color:var(--accent-ink);border-radius:14px;padding:16px;font-weight:700;font-size:16px;letter-spacing:.02em;box-shadow:0 10px 30px rgba(201,164,106,.25)}
.primary:disabled{opacity:.5}
.note{display:flex;flex-direction:column;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--line);text-align:center}
.note .chips{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 14px}
.note .chips span{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--accent-2);letter-spacing:.02em;white-space:nowrap}
.note .chips svg{width:14px;height:14px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.note .tip{font-size:11.5px;color:var(--muted);line-height:1.6;opacity:.85}
.err{color:var(--warn);font-size:13px;line-height:1.5}
.err:empty{display:none}

/* ---------- Call screen ---------- */
#call{position:fixed;inset:0;display:flex;flex-direction:column}
#stage{position:relative;flex:1;min-height:0;background:#000;overflow:hidden}
#remoteVideo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000}
#stage::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,.45) 0,transparent 18%,transparent 48%,rgba(8,7,6,.72) 100%),
             radial-gradient(120% 90% at 50% 40%,transparent 60%,rgba(0,0,0,.35) 100%)}
.subsonly #stage::after{display:none}
#localVideo{position:absolute;top:calc(60px + env(safe-area-inset-top,0px));right:12px;width:28%;max-width:170px;aspect-ratio:3/4;object-fit:cover;border-radius:14px;border:1px solid rgba(201,164,106,.55);background:#111;z-index:3;transform:scaleX(-1);box-shadow:0 10px 30px rgba(0,0,0,.5)}
#localVideo.rear{transform:none}
.waiting{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:26vh!important;gap:14px;color:var(--muted);text-align:center;padding:0 28px;z-index:1;
  background:radial-gradient(600px 400px at 50% 40%,rgba(201,164,106,.10),transparent 70%),var(--stage);font-size:15px;line-height:1.6}
.waiting .dot{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(201,164,106,.6);animation:ring 1.6s infinite}
@keyframes ring{0%{box-shadow:0 0 0 0 rgba(201,164,106,.55)}100%{box-shadow:0 0 0 22px rgba(201,164,106,0)}}

.topbar{position:absolute;top:0;left:0;right:0;z-index:4;display:flex;align-items:center;gap:10px;padding:calc(12px + env(safe-area-inset-top,0px)) 12px 12px;background:linear-gradient(rgba(0,0,0,.7),rgba(0,0,0,0))}
.pair{display:flex;align-items:center;gap:6px;font-weight:600;font-size:13.5px;background:rgba(20,20,22,.6);border:1px solid rgba(201,164,106,.35);padding:7px 12px;border-radius:999px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.state{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px;min-width:0}
.state i{width:8px;height:8px;border-radius:50%;background:var(--muted);flex:none}
.state.ok i{background:#5fc58e}
.state.bad i{background:var(--warn)}
.state span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .sp{flex:1}
.timer{font-variant-numeric:tabular-nums;font-size:13px;color:var(--accent-2)}
.iconbtn{border:1px solid rgba(255,255,255,.12);background:rgba(20,20,22,.6);border-radius:999px;padding:6px 12px;font-size:13px}

#subs{position:absolute;left:0;right:0;bottom:0;max-height:62%;overflow-y:auto;z-index:2;padding:40px 12px 14px;display:flex;flex-direction:column;gap:10px;
  -webkit-mask-image:linear-gradient(transparent 0,#000 40px);mask-image:linear-gradient(transparent 0,#000 40px);scrollbar-width:none}
#subs::-webkit-scrollbar{display:none}
.subsonly #stage{background:radial-gradient(700px 500px at 50% 0%,rgba(201,164,106,.08),transparent 70%),var(--stage)}
.subsonly #subs{max-height:none;top:calc(56px + env(safe-area-inset-top,0px))}
.msg{max-width:min(86%,640px);display:flex;flex-direction:column;align-self:flex-start;animation:rise .22s ease}
@keyframes rise{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.msg.mine{align-self:flex-end;align-items:flex-end}
.bubble{background:var(--bubble);-webkit-backdrop-filter:blur(14px) saturate(1.2);backdrop-filter:blur(14px) saturate(1.2);box-shadow:0 6px 24px rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.06);border-radius:16px 16px 16px 4px;padding:9px 13px;font-size:var(--fs);line-height:1.45;word-break:break-word}
.mine .bubble{background:var(--bubble-me);border-color:rgba(201,164,106,.3);border-radius:16px 16px 4px 16px}
.bubble .main{font-weight:600}
.bubble .sub{font-size:.8em;opacity:.72;margin-top:4px}
.bubble.live .main{opacity:.75;font-weight:400}
.bubble .wait{font-style:italic;opacity:.6}
.who{font-size:10px;color:var(--accent-2);opacity:.75;margin:0 6px 3px;letter-spacing:.14em;text-transform:uppercase}

.invite{position:absolute;left:12px;right:12px;top:calc(68px + env(safe-area-inset-top,0px));z-index:5;background:linear-gradient(180deg,#1d1d20,#151517);border:1px solid var(--line);border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:12px;max-width:460px;margin:0 auto;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.invite h3{margin:0;font-family:var(--serif);font-weight:600;font-size:20px}
.invite .link{font-size:12px;color:var(--muted);word-break:break-all;background:var(--stage);border:1px solid var(--line);padding:9px 11px;border-radius:10px;user-select:all}
.invite .row{display:flex;gap:8px;flex-wrap:wrap}
.invite .row > *{flex:1;min-width:120px;text-align:center;border-radius:12px;padding:11px;font-weight:600;font-size:14px;text-decoration:none}
.btn-wa{background:#25d366;color:#05301a;border:none}
.btn-ghost{background:var(--panel-2);border:1px solid var(--line)}

.dock{background:linear-gradient(180deg,#141416,#0f0f11);border-top:1px solid var(--line);padding:10px 12px calc(12px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:8px}
.ctrls{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.cbtn{width:54px;height:54px;border-radius:50%;border:1px solid var(--line);background:var(--panel-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;font-size:9.5px;color:var(--muted)}
.cbtn svg{width:21px;height:21px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cbtn.off{background:#3a2626;border-color:#5a3333}
.cbtn.off svg{stroke:var(--danger)}
.cbtn.end{background:var(--danger);border-color:var(--danger)}
.cbtn.end svg{stroke:#fff}
.typerow{display:flex;gap:8px}
.typerow input{flex:1;min-width:0;border:1px solid var(--line);background:var(--stage);border-radius:12px;padding:11px 13px;font-size:16px}
.typerow input:focus{border-color:var(--accent);outline:none}
.typerow button{border:none;background:linear-gradient(180deg,var(--accent-2),var(--accent));color:var(--accent-ink);border-radius:12px;padding:0 18px;font-weight:700}
.hearing{font-size:12px;color:var(--muted);text-align:center;min-height:16px}
.hearing.bad{color:var(--warn)}

@media (prefers-reduced-motion:reduce){.waiting .dot,.msg{animation:none}}
/* ---------- Desktop / tablet ---------- */
@media (min-width:900px){
  .panel{padding:40px 36px 32px;max-width:480px}
  .card h1{font-size:42px}
  #localVideo{top:auto;bottom:18px;left:18px;right:auto;width:220px;max-width:none}
  #subs{left:auto;right:18px;bottom:18px;width:min(460px,40vw);max-height:calc(100% - 96px);padding-top:48px}
  .subsonly #subs{left:50%;right:auto;transform:translateX(-50%);width:min(720px,90vw)}
  .msg{max-width:100%}
  .invite{left:auto;right:18px;margin:0;width:420px}
  .dock{flex-direction:row;align-items:center;justify-content:center;flex-wrap:wrap;padding:12px 24px 14px}
  .dock .hearing{order:-1;flex-basis:100%}
  .typerow{flex-basis:100%;max-width:720px;margin:0 auto}
  .cbtn{width:58px;height:58px}
}
@media (max-height:620px) and (max-width:899px){ #localVideo{width:22%} .cbtn{width:46px;height:46px} }

.nolink{display:flex;flex-direction:column;gap:14px}
.nolink p{margin:0;color:var(--muted);line-height:1.65}

/* tips card on the join page */
.tips{background:linear-gradient(180deg,rgba(201,164,106,.08),rgba(201,164,106,.03));border:1px solid rgba(201,164,106,.22);border-radius:14px;padding:13px 15px}
.tips-h{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;font-weight:600}
.tips ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}
.tips li{position:relative;padding-inline-start:16px;font-size:13px;line-height:1.5;color:var(--ink);opacity:.86}
.tips li::before{content:"";position:absolute;inset-inline-start:2px;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--accent)}

/* voice interpreter */
.cbtn.on{background:linear-gradient(180deg,var(--accent-2),var(--accent));border-color:var(--accent);color:var(--accent-ink)}
.cbtn.on svg{stroke:var(--accent-ink)}
.cbtn.busy svg{animation:pulse 1.2s infinite}
.interp-cap{position:absolute;z-index:3;left:12px;right:12px;top:calc(60px + env(safe-area-inset-top,0px));max-width:min(640px,calc(100% - 24px));
  background:rgba(14,13,12,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(201,164,106,.35);border-radius:14px;padding:10px 14px 10px 38px}
.interp-cap::before{content:"";position:absolute;left:14px;top:15px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(201,164,106,.6);animation:ring 1.6s infinite}
.interp-cap .it{font-size:calc(var(--fs) + 1px);font-weight:600;line-height:1.4}
.interp-cap .io{font-size:.8em;opacity:.65;margin-top:3px}
.interp-cap .io:empty{display:none}
@media (max-width:899px){ .interp-cap{right:calc(28% + 24px)} }
@media (min-width:900px){ .interp-cap{left:50%;right:auto;transform:translateX(-50%);width:min(640px,60vw)} }
@media (max-width:480px){ .ctrls{gap:6px;flex-wrap:nowrap} .cbtn{width:48px;height:48px;font-size:8.5px} .cbtn svg{width:19px;height:19px} .cbtn span{max-width:46px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap} }

.iconbtn.tune{color:var(--accent-2);border-color:rgba(201,164,106,.4);white-space:nowrap}