:root{--p:#003e53;--a:#ffc229;--card:#ebe9e9;--text:#09090a;--white:#ffffff;--danger:#dd2222;--success:#008844}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;-webkit-text-size-adjust:100%}
html:not(.ready) .container,html:not(.ready) .lang-bar{visibility:hidden}
html.ready .lang-bar,html.ready .container{visibility:visible}
body{font-family:'Montserrat',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--white);color:var(--text);min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;align-items:center;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

.container{width:100%;max-width:480px;padding:24px;text-align:center;flex:1;display:flex;flex-direction:column}

.header{margin-bottom:8px;margin-top:56px}
.header h1{font-size:28px;font-weight:700;color:var(--p);display:flex;align-items:center;justify-content:center;gap:6px}

.lang-pair{display:flex;align-items:flex-end;gap:10px;margin-bottom:16px}
.lang-select-wrap{flex:1;text-align:left;min-width:0}
.lang-label-sm{font-size:16px;font-weight:600;color:var(--p);opacity:0.7;display:block;margin-bottom:8px;text-align:center;text-transform:uppercase;letter-spacing:0.3px}
.lang-select{width:100%;padding:10px 12px;border:2px solid var(--card);border-radius:12px;font-family:'Montserrat',sans-serif;font-size:14px;font-weight:500;color:var(--text);background:var(--white);outline:none;cursor:pointer;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23003e53' stroke-width='2' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:32px;min-height:56px;transition:border-color 0.15s,box-shadow 0.15s}
.lang-select:focus{border-color:var(--p);box-shadow:0 0 0 3px rgba(0,62,83,0.12)}
.lang-select.active-source,.lang-select.active-target{border-color:var(--card);box-shadow:none}
.swap-btn{height:56px;padding:0 16px;border-radius:12px;border:2px solid var(--p);background:var(--p);color:var(--white);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;flex-shrink:0;margin-bottom:1px;transition:background 0.15s,transform 0.12s;-webkit-tap-highlight-color:transparent;font-family:'Montserrat',sans-serif;min-width:64px}
.swap-btn .swap-icon{font-size:26px;line-height:1;font-weight:700}
.swap-btn .swap-text{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:0.5px;line-height:1}
.swap-btn:active{background:var(--a);border-color:var(--a);color:var(--p);transform:scale(0.95)}
.swap-btn:disabled{opacity:0.4;cursor:not-allowed;background:var(--card);border-color:var(--card);color:var(--p)}

.mic-area{display:flex;flex-direction:column;align-items:center;padding:20px 0}
.mic-btn{width:120px;height:120px;border-radius:50%;border:none;background:var(--p);color:var(--white);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:48px;transition:all 0.15s;box-shadow:0 6px 24px rgba(0,62,83,0.3);-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none;touch-action:manipulation}
.mic-btn:active{transform:scale(0.92)}
.mic-btn.recording{background:var(--danger);box-shadow:0 6px 24px rgba(221,34,34,0.4);animation:pulse-glow 0.8s infinite}
@keyframes pulse-glow{0%,100%{box-shadow:0 6px 24px rgba(221,34,34,0.4)}50%{box-shadow:0 6px 36px rgba(221,34,34,0.7)}}
.mic-label{font-size:18px;font-weight:500;color:var(--p);margin-top:14px}

.status-bar{font-size:16px;font-weight:500;color:var(--p);opacity:0.7;display:flex;justify-content:center;align-items:center;gap:8px;min-height:24px;margin-bottom:4px}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}
.status-dot.idle{background:#ccc}
.status-dot.connecting{background:var(--a);animation:pulse 0.8s infinite}
.status-dot.error{background:var(--danger)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}

.transcript-area{display:none;flex-direction:column;flex:1;min-height:0;border-top:1px solid var(--card);padding-top:12px;margin-top:4px}
.transcript-area.open{display:flex}
.transcript-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:4px 0;display:flex;flex-direction:column-reverse;gap:10px}
.exchange{animation:fadeIn 0.2s ease-out}
.exchange-source,.exchange-target{display:flex;flex-direction:column;max-width:92%}
.exchange-source{align-self:flex-start}
.exchange-target{align-self:flex-end}
.exchange-label{font-size:10px;font-weight:600;color:var(--p);opacity:0.6;margin-bottom:2px;padding:0 4px}
.exchange-bubble{padding:10px 14px;border-radius:14px;font-size:16px;line-height:1.5;word-wrap:break-word;text-align:left;white-space:pre-wrap}
.exchange-source .exchange-bubble{background:var(--card);color:var(--text);border-bottom-left-radius:4px}
.exchange-target .exchange-bubble{background:var(--p);color:var(--white);border-bottom-right-radius:4px}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

.lang-bar{position:fixed;top:14px;right:14px;z-index:300}
.lang-bar button{background:rgba(235,233,233,0.8);border:1px solid rgba(9,9,10,0.08);cursor:pointer;padding:10px 14px;border-radius:14px;transition:opacity 0.2s,transform 0.15s,background 0.15s;-webkit-tap-highlight-color:transparent;box-shadow:0 1px 4px rgba(0,0,0,0.08);display:flex;flex-direction:row;align-items:center;gap:8px;min-height:44px}
.lang-bar button:active{transform:scale(0.92);background:rgba(235,233,233,0.5)}
.lang-bar #current-flag{font-size:24px;line-height:1}
.lang-bar .lang-label{font-family:'Montserrat',sans-serif;font-size:12px;font-weight:600;color:var(--p);text-transform:uppercase;letter-spacing:0.3px;line-height:1}

.lang-grid{display:grid;grid-template-columns:1fr;gap:8px}
.lang-option{background:var(--card);border:none;border-radius:10px;padding:14px 8px;font-family:'Montserrat',sans-serif;font-size:14px;font-weight:500;cursor:pointer;text-align:center;transition:background 0.15s,color 0.15s,transform 0.12s;line-height:1.3;-webkit-tap-highlight-color:transparent;display:flex;flex-direction:column;align-items:center;gap:4px}
.lang-option:active{transform:scale(0.95)}
.lang-option.active{background:var(--p);color:var(--white);font-weight:600}
.lang-option .flag{font-size:24px;line-height:1}

.modal-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(9,9,10,0.45);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);z-index:200;justify-content:center;align-items:center;opacity:0;transition:opacity 0.2s}
.modal-overlay.open{display:flex;opacity:1}
.modal-bg{background:var(--white);border-radius:20px;width:calc(100% - 32px);max-width:440px;max-height:80vh;display:flex;flex-direction:column;overflow:hidden;transform:scale(0.95);transition:transform 0.25s ease-out}
.modal-overlay.open .modal-bg{transform:scale(1)}
.modal-header{display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;background:var(--white);z-index:1;padding:16px}
.modal-header h2{font-size:20px;font-weight:700;color:var(--p);line-height:1.3}
.modal-scroll{overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;flex:1;-webkit-mask-image:-webkit-radial-gradient(white,black);mask-image:radial-gradient(white,black)}
.modal-body{padding:0 16px 16px}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:var(--text);opacity:0.4;padding:4px;line-height:1;-webkit-tap-highlight-color:transparent;transition:opacity 0.15s}
.modal-close:active{opacity:0.8}

@media(max-width:380px){
.container{padding:16px}
.header h1{font-size:19px}
.mic-btn{width:80px;height:80px;font-size:32px}
.lang-select{font-size:13px;padding:8px 6px}
}