:root{
  --bg:#09090b;
  --panel:#121214;
  --panel2:#17171a;
  --line:rgba(255,255,255,.08);
  --muted:#9c9ca5;
  --text:#f5f5f7;
  --purple:#8b4cf6;
  --purple2:#6f32d8;
  --green:#35c26b;
  --red:#ff5c62;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}
*{box-sizing:border-box}
html,body{margin:0;background:#000;color:var(--text);min-height:100%;overscroll-behavior:none}
body{display:flex;justify-content:center;min-height:100dvh;-webkit-tap-highlight-color:transparent}
button,input,select{font:inherit}
button{color:inherit}
.app-shell{
  width:100%;
  max-width:520px;
  min-height:100dvh;
  background:radial-gradient(circle at 50% 20%,rgba(139,76,246,.06),transparent 34%),var(--bg);
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
}
.topbar{
  min-height:88px;
  padding:calc(18px + env(safe-area-inset-top)) 26px 16px;
  display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid transparent;
  flex:none;
}
.brand{display:flex;align-items:center;gap:12px;font-size:29px;font-weight:750;letter-spacing:-1.2px}
.brand.large{justify-content:center;font-size:31px}
.brand-mark{width:34px;height:31px;display:inline-flex;gap:3px;align-items:center;justify-content:center}
.brand-mark i{display:block;width:4px;border-radius:8px;background:linear-gradient(180deg,#a36cff,#6d34db);box-shadow:0 0 12px rgba(139,76,246,.26)}
.brand-mark i:nth-child(1){height:20px}.brand-mark i:nth-child(2){height:29px}.brand-mark i:nth-child(3){height:24px}.brand-mark i:nth-child(4){height:16px}
.top-actions{display:flex;gap:18px}
.icon-button,.back-button,.modal-close{
  width:38px;height:38px;border:0;background:transparent;display:grid;place-items:center;cursor:pointer;padding:0
}
.icon-button svg{width:26px;height:26px;fill:#fff}
.main-view{flex:1;min-height:0;position:relative;overflow:hidden}
.view{display:none;height:100%;overflow:auto;padding:22px 26px 18px;scrollbar-width:none}
.view::-webkit-scrollbar,.conversation-stream::-webkit-scrollbar{display:none}
.view.active{display:flex;flex-direction:column}
.room-card{
  background:linear-gradient(145deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:24px;padding:24px 24px 26px;text-align:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.015)
}
.room-people-icon{width:44px;height:44px;margin:0 auto 4px;color:var(--purple)}
.room-people-icon svg{width:100%;height:100%;fill:currentColor}
.room-label{font-size:20px;color:#aaaab2;margin-top:2px}
.room-code{font-size:42px;font-weight:800;letter-spacing:2px;margin:2px 0 10px}
.room-help{font-size:14px;color:#9b9ba4}
.room-actions{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.primary-button,.secondary-button{
  min-height:54px;border-radius:13px;padding:0 18px;border:1px solid rgba(255,255,255,.14);font-weight:700;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:9px
}
.primary-button{background:linear-gradient(135deg,#8b4cf6,#7134d8);border-color:transparent;box-shadow:0 8px 28px rgba(111,50,216,.18)}
.secondary-button{background:#151518}
.primary-button:active,.secondary-button:active{transform:translateY(1px)}
.wide{width:100%;margin-top:16px}
.button-icon{font-size:21px}
.status-card{
  margin-top:18px;background:linear-gradient(145deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:20px;padding:20px 22px
}
.status-line{display:flex;align-items:center;gap:12px;font-size:20px}
.status-dot,.tiny-dot{width:18px;height:18px;border-radius:50%;background:#5e5e65;box-shadow:0 0 18px rgba(0,0,0,.2)}
.status-dot.online,.tiny-dot{background:var(--green);box-shadow:0 0 18px rgba(53,194,107,.28)}
.status-sub{font-size:14px;color:var(--muted);margin-top:5px}
.language-row{display:grid;grid-template-columns:1fr 42px 1fr;gap:12px;align-items:center;margin-top:18px}
.language-card{
  display:flex;align-items:center;gap:10px;background:linear-gradient(145deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:18px;padding:14px;min-width:0
}
.flag{font-size:29px;line-height:1}
.language-copy{min-width:0;display:flex;flex-direction:column;gap:2px;flex:1}
.language-caption{font-size:11px;color:#a2a2aa}
.language-card select{appearance:none;background:transparent;border:0;color:var(--purple);font-size:17px;outline:0;max-width:100%;cursor:pointer}
.language-card select option{background:#18181b;color:#fff}
.swap-button{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#151518;color:#a7a7b0;font-size:22px}
.ptt-zone{display:flex;flex-direction:column;align-items:center;margin:auto 0 12px;padding-top:34px}
.ptt-button{
  width:234px;height:234px;border-radius:50%;border:0;background:transparent;padding:13px;cursor:pointer;
  touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;outline:none;
  position:relative
}
.ptt-button::before{
  content:"";position:absolute;inset:0;border-radius:50%;border:3px solid var(--purple);opacity:.95;
  box-shadow:0 0 30px rgba(139,76,246,.08)
}
.ptt-ring{
  position:absolute;inset:16px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 50% 40%,#202023,#141416 68%);
  border:1px solid rgba(255,255,255,.1);box-shadow:0 18px 35px rgba(0,0,0,.38),inset 0 0 30px rgba(255,255,255,.02);
  transition:transform .12s ease,background .16s ease,box-shadow .16s ease
}
.ptt-button.recording .ptt-ring{
  transform:scale(.96);
  background:radial-gradient(circle at 50% 35%,#8d55ef,#5d28c8 75%);
  box-shadow:0 0 38px rgba(139,76,246,.32),inset 0 0 26px rgba(255,255,255,.08)
}
.ptt-button.processing .ptt-ring{animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(.965);box-shadow:0 0 42px rgba(139,76,246,.35)}}
.mic-icon{width:72px;height:72px;color:#fff}
.mic-icon svg{width:100%;height:100%;fill:currentColor}
.ptt-title{font-size:30px;font-weight:800;margin-top:18px}
.ptt-subtitle{font-size:18px;color:#a5a5ad;margin-top:4px}
.ptt-timer{margin-top:8px;color:#c9b8f9;font-variant-numeric:tabular-nums}
.bottom-nav{
  min-height:82px;padding:10px 32px calc(10px + env(safe-area-inset-bottom));
  display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);background:rgba(9,9,11,.95);backdrop-filter:blur(14px);flex:none
}
.nav-item{border:0;background:transparent;color:#9a9aa1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;font-size:13px;cursor:pointer}
.nav-item svg{width:27px;height:27px;fill:currentColor}
.nav-item.active{color:var(--purple)}
.page-title{font-size:28px;font-weight:800}
.page-subtitle{font-size:14px;color:var(--muted);margin:4px 0 18px}
.messages-list{display:flex;flex-direction:column;gap:12px}
.empty-state{color:#777780;border:1px dashed var(--line);border-radius:18px;padding:30px 18px;text-align:center;margin-top:16px}
.message-card{
  background:#131316;border:1px solid var(--line);border-radius:18px;padding:16px 18px
}
.message-meta{display:flex;justify-content:space-between;gap:12px;color:#9b72f5;font-size:12px;margin-bottom:10px}
.message-main{font-size:17px;line-height:1.45}
.message-original{font-size:13px;color:#8e8e97;margin-top:6px}
.message-audio{display:flex;align-items:center;gap:12px;margin-top:13px}
.play-audio{width:40px;height:40px;border-radius:50%;border:1px solid rgba(139,76,246,.45);background:#15121c;color:var(--purple);font-size:17px}
.wave{height:24px;flex:1;display:flex;align-items:center;gap:2px;overflow:hidden}
.wave i{width:3px;border-radius:4px;background:var(--purple);display:block;opacity:.9}
.wave i:nth-child(4n+1){height:8px}.wave i:nth-child(4n+2){height:18px}.wave i:nth-child(4n+3){height:12px}.wave i:nth-child(4n){height:22px}
.about-card{background:#131316;border:1px solid var(--line);border-radius:24px;padding:30px 24px;margin:auto 0}
.about-card h2{text-align:center;font-size:27px;margin:22px 0 10px}
.about-card p{color:#aaaab2;line-height:1.65;text-align:center}
.about-points{margin-top:24px;display:grid;gap:12px;color:#c7c7cd}
.about-points span{color:var(--purple);margin-right:8px}
.conversation-panel{
  margin-top:18px;background:#0d0d0f;border:1px solid var(--line);border-radius:22px;min-height:310px;max-height:420px;display:flex;flex-direction:column;overflow:hidden
}
.conversation-head{display:grid;grid-template-columns:46px 1fr 54px;align-items:center;padding:13px 12px;border-bottom:1px solid var(--line);text-align:center}
.back-button{font-size:28px;color:#b6b6be}
.conversation-room{font-weight:750}
.conversation-connected{font-size:12px;color:#aaaab2;display:flex;justify-content:center;align-items:center;gap:6px;margin-top:2px}
.tiny-dot{width:8px;height:8px}
.leave-button{border:0;background:transparent;color:var(--red);font-weight:650;cursor:pointer}
.conversation-stream{overflow:auto;padding:15px;display:flex;flex-direction:column;gap:12px}
.transcript-bubble{border-radius:16px;background:#17171a;border:1px solid rgba(255,255,255,.05);padding:14px}
.transcript-label{display:flex;justify-content:space-between;color:#9f72f8;font-size:12px;margin-bottom:8px}
.transcript-text{font-size:16px}
.transcript-original{font-size:12px;color:#8c8c94;margin-top:5px}
.translating-card{display:flex;justify-content:space-between;align-items:center;color:#b0b0b7}
.spinner{width:22px;height:22px;border:3px solid rgba(139,76,246,.2);border-top-color:var(--purple);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.modal-backdrop{
  position:fixed;inset:0;background:rgba(0,0,0,.76);backdrop-filter:blur(10px);display:grid;place-items:center;padding:24px;z-index:100
}
.modal-backdrop.hidden,.hidden{display:none!important}
.modal{
  width:min(100%,420px);background:#111114;border:1px solid rgba(255,255,255,.11);border-radius:24px;padding:28px;box-shadow:0 28px 80px rgba(0,0,0,.55)
}
.modal.compact{padding:24px}
.modal-brand{justify-content:center;font-size:27px}
.modal h1{text-align:center;margin:22px 0 6px}.modal-note{text-align:center;color:#9999a2;margin:0 0 24px}
.field-label{display:block;font-size:12px;color:#a4a4ad;margin:13px 0 7px}
.text-input{
  width:100%;min-height:52px;border-radius:13px;border:1px solid var(--line);background:#18181b;color:#fff;padding:0 14px;outline:0
}
.text-input:focus{border-color:rgba(139,76,246,.7);box-shadow:0 0 0 3px rgba(139,76,246,.09)}
.or-divider{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;color:#777780;margin:20px 0}
.or-divider span{height:1px;background:var(--line)}.or-divider em{font-style:normal;font-size:12px}
.join-row{display:grid;grid-template-columns:1fr auto;gap:10px}.room-input{text-transform:uppercase;letter-spacing:3px;font-weight:700}
.form-error{min-height:20px;color:#ff767b;font-size:12px;margin-top:8px}
.modal-title-row{display:flex;align-items:center;justify-content:space-between}.modal-title-row h2{margin:0}.modal-close{font-size:28px;color:#aaaab2}
.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:18px 0;font-size:14px}
.toggle-row input{width:20px;height:20px;accent-color:var(--purple)}
.compat-note{font-size:11px;color:#75757e;line-height:1.5;border:1px solid var(--line);border-radius:12px;padding:12px}
.participant-list{display:grid;gap:10px;margin-top:18px}
.participant-row{display:flex;align-items:center;justify-content:space-between;background:#18181b;border:1px solid var(--line);border-radius:13px;padding:12px}
.participant-lang{color:#9f72f8;font-size:12px}
.toast{
  position:fixed;left:50%;bottom:calc(96px + env(safe-area-inset-bottom));transform:translateX(-50%);
  background:#242428;color:white;border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-size:13px;z-index:150;box-shadow:0 14px 35px rgba(0,0,0,.35)
}
@media (max-width:420px){
  .topbar{padding-left:20px;padding-right:20px}.view{padding-left:18px;padding-right:18px}
  .brand{font-size:25px}.room-code{font-size:36px}.ptt-button{width:205px;height:205px}
  .ptt-title{font-size:27px}.language-card{padding:12px 10px}.flag{font-size:24px}.language-card select{font-size:15px}
}
@media (max-height:760px){
  .topbar{min-height:72px;padding-top:calc(10px + env(safe-area-inset-top));padding-bottom:10px}
  .room-card{padding-top:16px;padding-bottom:18px}.room-people-icon{width:36px;height:36px}.room-code{font-size:34px}
  .status-card{padding:15px 18px}.language-row{margin-top:12px}.ptt-zone{padding-top:16px}.ptt-button{width:180px;height:180px}
  .ptt-title{margin-top:8px;font-size:25px}.ptt-subtitle{font-size:15px}
}


.app-nav-bar{
  height:42px; flex:none; padding:0 20px 6px;
  display:grid; grid-template-columns:repeat(5,42px); gap:8px;
  align-items:center; justify-content:start; background:var(--bg);
}
.app-nav-btn{
  width:42px;height:36px;border-radius:11px;border:1px solid var(--line);
  background:#121214;color:#b8b8c0;display:grid;place-items:center;
  font-size:19px;line-height:1;cursor:pointer;touch-action:manipulation;
  user-select:none;-webkit-user-select:none;
}
.app-nav-btn:active{transform:translateY(1px);background:#1a1a1e}
.app-nav-home{color:#a98aff}.app-nav-exit{color:#ff7379}
.exit-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.exit-note{text-align:left;margin:12px 0 0}
@media (max-width:420px){
  .app-nav-bar{padding-left:16px;padding-right:16px;grid-template-columns:repeat(5,38px);gap:7px}
  .app-nav-btn{width:38px;height:34px}
}

.language-row-single{
  grid-template-columns:1fr;
  gap:9px;
}
.language-card-single{
  width:100%;
  max-width:100%;
}
.own-language-note{
  text-align:center;
  font-size:11px;
  color:#777780;
  line-height:1.4;
  padding:0 8px;
}


.credit-balance-card{
  margin-top:18px;
  border-radius:22px;
  border:1px solid rgba(139,76,246,.24);
  background:linear-gradient(145deg,rgba(139,76,246,.13),rgba(255,255,255,.025));
  padding:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.credit-balance-label{
  font-size:12px;color:#9e9ea7;text-transform:uppercase;letter-spacing:.12em
}
.credit-balance-value{font-size:30px;font-weight:800;margin-top:5px}
.credit-balance-icon{
  width:50px;height:50px;border-radius:16px;display:grid;place-items:center;
  background:rgba(139,76,246,.15);color:#a878ff;font-size:24px;flex:none
}
.credit-section-title{margin:24px 0 12px;font-size:14px;font-weight:750;color:#d2d2d7}
.credit-pack-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.credit-pack{
  min-height:132px;border-radius:18px;border:1px solid var(--line);
  background:#131316;display:flex;flex-direction:column;align-items:flex-start;
  justify-content:center;padding:18px;cursor:pointer;position:relative;text-align:left
}
.credit-pack.featured{
  border-color:rgba(139,76,246,.55);
  box-shadow:0 0 0 1px rgba(139,76,246,.1),0 12px 30px rgba(93,40,200,.12)
}
.credit-pack-badge{
  position:absolute;right:12px;top:10px;font-size:10px;color:#bda5ff;
  background:rgba(139,76,246,.12);border:1px solid rgba(139,76,246,.22);
  padding:4px 7px;border-radius:999px
}
.credit-pack-amount{font-size:27px;font-weight:850}
.credit-pack-label{font-size:12px;color:#8e8e97;margin-top:1px}
.credit-pack-price{margin-top:13px;color:#9f72f8;font-weight:750;font-size:13px}
.credit-info-card{
  margin-top:18px;border-radius:18px;border:1px solid var(--line);background:#111114;
  padding:17px;color:#9898a0;font-size:13px;line-height:1.55
}
.credit-info-title{color:#e7e7ea;font-weight:750;margin-bottom:5px}
.credit-info-card p{margin:0}
.bottom-nav .nav-item{min-width:0}
.bottom-nav .nav-item span{font-size:11px}

/* Manual own-language selector stays full-width and touch-friendly. */
.language-row-single{grid-template-columns:1fr!important;gap:9px}
.language-card-single{width:100%;max-width:100%;min-height:64px}
.language-card-single select{font-size:17px;min-height:36px}

/* Strong mobile responsiveness for small Android WebViews. */
@media (max-width:380px){
  .view{padding-left:14px;padding-right:14px}
  .room-actions{grid-template-columns:1fr}
  .credit-pack-grid{grid-template-columns:1fr}
  .credit-pack{min-height:104px}
  .bottom-nav{padding-left:10px;padding-right:10px}
  .bottom-nav .nav-item span{font-size:10px}
  .app-nav-bar{grid-template-columns:repeat(5,36px);gap:5px;padding-left:12px;padding-right:12px}
  .app-nav-btn{width:36px;height:34px}
}
@media (max-width:340px){
  .brand{font-size:22px}
  .top-actions{gap:8px}
  .room-code{font-size:30px}
  .ptt-button{width:172px;height:172px}
  .ptt-title{font-size:24px}
}