:root{
  --bg:#060B14;
  --surface:#0E1A2C;
  --surface-raised:#132542;
  --border:#1E3252;
  --border-strong:#2C4A73;
  --ink:#E7EEF9;
  --ink-soft:#8CA3C7;
  --ink-faint:#5A7196;
  --accent:#3E8BFF;
  --accent-bright:#5EEBFF;
  --accent-deep:#1E4FD9;
  --ok:#33D6A6;
  --err:#FF5C7A;
  --ch-natural:#35C7F4;
  --ch-casual:#4F7CFF;
  --ch-question:#9B7BFF;
  --ch-flirty:#FF5FA8;
  --shadow:0 1px 0 rgba(0,0,0,.2),0 12px 30px -16px rgba(3,10,25,.7);
  --glow:0 0 0 1px rgba(62,139,255,.18),0 0 24px -6px rgba(62,139,255,.35);
  --safe-bottom:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:
    radial-gradient(1100px 560px at 12% -12%,rgba(62,139,255,.20),transparent 60%),
    radial-gradient(900px 480px at 105% 0%,rgba(94,235,255,.10),transparent 55%),
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px) 0 0/100% 40px,
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px) 0 0/40px 100%,
    var(--bg);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  min-height:100vh;
  padding:28px 20px calc(60px + var(--safe-bottom));
}
button,input,select,textarea{font:inherit;}
button{cursor:pointer;-webkit-tap-highlight-color:transparent;}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent-bright);
  outline-offset:2px;
}
.wrap{max-width:960px;margin:0 auto;}
header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:6px;gap:12px;flex-wrap:wrap;
}
h1{
  font-family:'Inter',sans-serif;
  font-size:29px;font-weight:800;margin:0;
  letter-spacing:-.02em;color:var(--ink);
}
h1::after{
  content:'';
  display:inline-block;width:7px;height:7px;margin-left:10px;margin-bottom:3px;
  border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 3px rgba(51,214,166,.18),0 0 10px 1px rgba(51,214,166,.7);
  vertical-align:middle;
  animation:pulseDot 2.4s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{opacity:1;}
  50%{opacity:.45;}
}
.header-actions{display:flex;gap:10px;align-items:center;}
.icon-round-btn{
  background:var(--surface);border:1px solid var(--border);
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;box-shadow:var(--shadow);
  color:var(--ink);
}
.icon-round-btn:hover{border-color:var(--border-strong);}
.panel-toggle{
  background:var(--accent);color:#fff;
  border:none;border-radius:20px;padding:9px 16px;
  font-family:'Inter';font-weight:600;font-size:14.5px;cursor:pointer;
  box-shadow:var(--shadow),0 0 20px -8px rgba(62,139,255,.7);
}
.subline{color:var(--ink-soft);font-size:15.5px;margin:0 0 22px;}

.controlbar{
  display:flex;flex-direction:column;gap:10px;margin-bottom:20px;
}
.control-row{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-soft);
}
.control-row--secondary{padding-top:10px;border-top:1px solid var(--border);}
.control-row--secondary + .control-row--secondary{border-top:none;padding-top:0;}
.segmented{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--surface);}
.segmented button{
  border:none;background:transparent;padding:7px 14px;font-family:'JetBrains Mono',monospace;
  font-size:12.5px;letter-spacing:.02em;cursor:pointer;color:var(--ink-soft);
}
.segmented button.active{background:var(--accent);color:#fff;font-weight:600;}
select{
  font-family:'Inter';font-size:15px;color:var(--ink);
  background:var(--surface);border:1px solid var(--border);
  padding:7px 11px;border-radius:6px;max-width:240px;
}
.toggle-row{display:flex;align-items:center;gap:6px;}
.toggle-row input{accent-color:var(--accent);}

.composer{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:12px 12px 12px 22px;
  display:flex;gap:10px;align-items:flex-end;
  margin-bottom:16px;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.composer:focus-within{
  border-color:var(--accent);
  box-shadow:var(--shadow),0 0 0 3px rgba(62,139,255,.16);
}
.composer textarea{
  flex:1;border:none;background:transparent;outline:none;resize:none;
  font-family:'Inter';font-size:16.5px;line-height:1.5;color:var(--ink);
  min-width:0;max-height:160px;padding:8px 0;
}
.composer textarea::placeholder{color:var(--ink-faint);}
.sendbtn{
  flex:none;width:38px;height:38px;border-radius:50%;
  background:var(--accent);color:#fff;border:none;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:0 0 20px -8px rgba(62,139,255,.8);
  transition:background .15s ease,transform .1s ease;
}
.sendbtn:hover:not(:disabled){background:var(--accent-deep);}
.sendbtn:active:not(:disabled){transform:scale(.9);}
.sendbtn:disabled{background:var(--surface-raised);color:var(--ink-faint);cursor:not-allowed;box-shadow:none;}

.status-line{font-size:13.5px;color:var(--ink-soft);min-height:20px;margin-bottom:14px;font-family:'JetBrains Mono',monospace;}
.status-line.error{color:var(--err);}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media(max-width:720px){.grid{grid-template-columns:1fr;}}

.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  box-shadow:var(--shadow);
  padding:24px 18px 16px;
  position:relative;
  overflow:hidden;
}
.tape{position:absolute;top:0;left:0;right:0;height:3px;opacity:1;}
.card.natural .tape{background:var(--ch-natural);box-shadow:0 0 12px 0 var(--ch-natural);}
.card.casual .tape{background:var(--ch-casual);box-shadow:0 0 12px 0 var(--ch-casual);}
.card.question .tape{background:var(--ch-question);box-shadow:0 0 12px 0 var(--ch-question);}
.card.flirty .tape{background:var(--ch-flirty);box-shadow:0 0 12px 0 var(--ch-flirty);}

.style-label{
  font-family:'JetBrains Mono',monospace;font-size:12px;text-transform:uppercase;
  letter-spacing:.08em;color:var(--ink-soft);margin:6px 0 10px;
  display:flex;align-items:center;gap:7px;
}
.style-label::before{
  content:'';width:6px;height:6px;border-radius:50%;background:currentColor;
  box-shadow:0 0 8px 0 currentColor;flex:none;
}
.card.natural .style-label{color:var(--ch-natural);}
.card.casual .style-label{color:var(--ch-casual);}
.card.question .style-label{color:var(--ch-question);}
.card.flirty .style-label{color:var(--ch-flirty);}

.en{font-family:'Inter',sans-serif;font-size:22px;font-weight:600;letter-spacing:-.01em;line-height:1.45;margin:0 0 10px;color:var(--ink);user-select:text;-webkit-user-select:text;}
.marked-text{
  background:rgba(94,235,255,.18);
  color:var(--accent-bright);
  border-radius:5px;
  padding:0 2px;
  box-decoration-break:clone;
  -webkit-box-decoration-break:clone;
}

.icon-row{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap;}
.icon-btn{
  border:1px solid var(--border);background:var(--surface-raised);color:var(--ink);
  min-width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:14px;padding:0 9px;
}
.icon-btn:hover{border-color:var(--border-strong);}
.icon-btn.text-btn{
  width:auto;border-radius:16px;font-size:12.5px;font-weight:600;font-family:'JetBrains Mono',monospace;
}
.icon-btn.bookmarked{background:var(--accent);color:#fff;border-color:var(--accent);}
.icon-btn.playing{background:var(--accent-bright);color:#04121F;border-color:var(--accent-bright);box-shadow:0 0 14px 0 var(--accent-bright);}
.icon-btn:disabled{opacity:.65;cursor:wait;}

.backtranslate{
  font-size:15.5px;color:var(--ink-soft);font-style:italic;
  padding-left:10px;border-left:2px solid var(--border-strong);
  margin-bottom:12px;
}

.vocab{margin-bottom:12px;}
.vocab-title{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;}
.vocab-item{font-size:15px;margin-bottom:5px;display:flex;align-items:center;gap:5px;flex-wrap:wrap;}
.vocab-item .en-w{font-weight:600;color:var(--ink);}
.vocab-item .star{cursor:pointer;color:var(--ink-faint);margin-right:4px;border:0;background:transparent;padding:0;font-size:15px;}
.vocab-item .star.on{color:var(--accent-bright);}
.mini-action{
  border:1px solid var(--border);
  background:var(--surface-raised);
  color:var(--ink-soft);
  border-radius:12px;
  padding:2px 7px;
  font-size:11px;
  font-family:'JetBrains Mono',monospace;
}

.note{
  font-family:'Inter';font-style:italic;font-size:15.5px;color:var(--ch-question);
  line-height:1.45;margin-top:10px;
  border-top:1px dashed var(--border);padding-top:8px;
}

.placeholder{
  text-align:center;color:var(--ink-soft);padding:60px 20px;
  font-size:15px;border:1px dashed var(--border);border-radius:10px;
}

/* settings modal */
.overlay{position:fixed;inset:0;background:rgba(3,8,18,.6);display:none;align-items:center;justify-content:center;z-index:70;padding:16px;backdrop-filter:blur(3px);}
.overlay.open{display:flex;}
.modal{
  background:var(--surface-raised);border:1px solid var(--border);border-radius:12px;
  width:420px;max-width:90vw;max-height:85vh;overflow-y:auto;padding:22px;box-shadow:var(--shadow),var(--glow);
}
.modal h2,.panel h2,.edit-dialog h2{font-family:'Inter';font-weight:700;font-size:20px;margin:0 0 4px;letter-spacing:-.01em;color:var(--ink);}
.modal .hint{font-size:13px;color:var(--ink-soft);margin-bottom:18px;line-height:1.45;}
.section-title{font-family:'Inter';font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin:18px 0 10px;padding-top:14px;border-top:1px solid var(--border);}
.section-title:first-of-type{margin-top:14px;padding-top:0;border-top:none;}
.field{margin-bottom:14px;}
.field label,.edit-dialog label{display:block;font-size:12.5px;font-weight:600;margin-bottom:5px;font-family:'JetBrains Mono',monospace;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em;}
.field input,.edit-dialog input,.edit-dialog textarea{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:7px;
  font-family:'JetBrains Mono',monospace;font-size:13px;background:var(--surface);color:var(--ink);
}
.field input:focus,.edit-dialog input:focus,.edit-dialog textarea:focus{border-color:var(--accent);}
.edit-dialog textarea{font-family:'Inter';resize:vertical;line-height:1.4;}
.setting-toggle{font-size:13px;color:var(--ink-soft);margin:8px 0;}
.modal-actions,.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px;}
.btn-secondary{background:var(--surface);border:1px solid var(--border);color:var(--ink);border-radius:7px;padding:9px 16px;font-family:'Inter';font-size:14px;cursor:pointer;}
.btn-secondary:hover{border-color:var(--border-strong);}
.btn-primary{background:var(--accent);color:#fff;border:none;border-radius:7px;padding:9px 16px;font-family:'Inter';font-weight:600;font-size:14px;cursor:pointer;}
.btn-primary:hover{background:var(--accent-deep);}

.edit-dialog{
  width:420px;max-width:90vw;border:1px solid var(--border);border-radius:12px;
  background:var(--surface-raised);color:var(--ink);padding:0;box-shadow:var(--shadow),var(--glow);
}
.edit-dialog::backdrop{background:rgba(3,8,18,.65);}
.edit-dialog form{padding:22px;display:grid;gap:10px;}

/* side panel */
.panel{
  position:fixed;top:0;right:-360px;width:340px;height:100%;
  background:var(--surface-raised);border-left:1px solid var(--border);
  transition:right .25s ease;padding:22px 18px;overflow-y:auto;
  box-shadow:-10px 0 40px -20px rgba(0,0,0,.6);z-index:60;
}
.panel.open{right:0;}
.panel-tabs{display:flex;gap:4px;margin:14px 0;flex-wrap:wrap;}
.saved-lang-segmented{width:100%;margin-top:12px;}
.saved-lang-segmented button{flex:1;text-align:center;}
.panel-tabs button{
  flex:1 1 46%;padding:7px 4px;border-radius:6px;border:1px solid var(--border);
  background:var(--surface);color:var(--ink-soft);font-family:'JetBrains Mono',monospace;font-size:11px;cursor:pointer;
}
.panel-tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent);}
.panel-backdrop{position:fixed;inset:0;background:rgba(3,8,18,.5);z-index:50;}
.saved-item{
  background:var(--surface);border:1px solid var(--border);border-radius:8px;
  padding:11px 13px;margin-bottom:8px;font-size:14.5px;position:relative;color:var(--ink);
}
.saved-item .actions{position:absolute;top:9px;right:10px;display:flex;gap:8px;color:var(--ink-soft);font-size:13px;}
.saved-item .actions button{cursor:pointer;border:0;background:transparent;color:inherit;padding:0;}
.saved-item .ctx{color:var(--ink-soft);font-size:13px;margin-top:4px;font-style:italic;padding-right:48px;}
.saved-item.clickable{cursor:pointer;transition:border-color .15s,background .15s;}
.saved-item.clickable:hover{border-color:var(--accent);background:var(--surface-raised);}
.empty-msg{color:var(--ink-soft);font-size:13.5px;text-align:center;padding:30px 10px;}

.selection-bar{
  position:fixed;left:12px;right:12px;bottom:calc(12px + var(--safe-bottom));
  z-index:90;background:var(--surface-raised);color:var(--ink);border:1px solid var(--border-strong);
  border-radius:12px;box-shadow:0 16px 42px -24px rgba(0,0,0,.8),var(--glow);
  padding:10px;display:grid;grid-template-columns:1fr auto auto auto;gap:8px;align-items:center;
}
.selection-bar span{display:block;font-size:11px;color:var(--ink-faint);font-family:'JetBrains Mono',monospace;}
.selection-bar strong{display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;}
.selection-bar button{
  border:1px solid var(--border-strong);background:var(--surface);color:var(--ink);
  border-radius:14px;padding:7px 10px;font-size:12.5px;font-weight:600;
}
.selection-bar button:last-child{background:var(--accent);color:#fff;border-color:var(--accent);}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

@media(max-width:560px){
  body{padding:20px 12px calc(82px + var(--safe-bottom));}
  h1{font-size:25px;}
  header{align-items:flex-start;}
  .controlbar{gap:8px;}
  .control-row{gap:8px;font-size:13px;}
  .control-row--secondary{padding-top:8px;}
  .segmented button{padding:7px 12px;}
  .composer{padding:10px 10px 10px 18px;border-radius:20px;}
  .composer textarea{font-size:16px;}
  .sendbtn{width:36px;height:36px;}
  .panel{
    top:auto;left:0;right:0;bottom:-88vh;width:100%;height:82vh;
    border-left:0;border-top:1px solid var(--border);
    border-radius:16px 16px 0 0;transition:bottom .25s ease;
  }
  .panel.open{right:0;bottom:0;}
  .selection-bar{grid-template-columns:1fr 1fr 1fr;gap:7px;}
  .selection-copy{grid-column:1/-1;}
}