/* ══════════════════════════════════════
       TOKENS & RESET
    ══════════════════════════════════════ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --stt_bg:      #0d0f14;
      --surface: #13161e;
      --panel:   #1a1e29;
      --stt_border:  #252b3b;
      --green:   #4fffb0;   /* STT accent  */
      --cyan:    #00c9ff;   /* TTS accent  */
      --warn:    #ff6b6b;
      --yellow:  #f7c948;
      --purple:  #b48cff;
      --stt_text:    #e8eaf0;
      --stt_muted:   #5a6175;
      --stt_radius:  14px;
    }
    body {
      background: var(--stt_bg); color: var(--stt_text);
      font-family: 'Syne', sans-serif;
      min-height: 100vh;
      padding: 24px 16px 48px;
      overflow-x: hidden;
    }
    body::before {
      content: ''; position: fixed; inset: 0; pointer-events: none;
      background-image:
        linear-gradient(rgba(79,255,176,.022) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79,255,176,.022) 1px, transparent 1px);
      background-size: 40px 40px;
    }


    .gap_from_nav{
      margin-top: 5rem;
    }
    .gap_from_footer{
      margin-bottom: 4rem;
    }



    /* ══════════════════════════════════════
       PAGE LAYOUT
    ══════════════════════════════════════ */
    .page-title {
      text-align: center; margin-bottom: 32px;
    }
    .page-title h1 {
      font-size: clamp(1.6rem, 4vw, 2.4rem);
      font-weight: 800; letter-spacing: -.03em;
    }
    .page-title h1 span.g { color: var(--green); }
    .page-title h1 span.c { color: var(--cyan); }
    .page-title p {
      font-family: 'DM Mono', monospace; font-size: .78rem;
      color: var(--stt_muted); margin-top: 6px;
    }

    .suite-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      max-width: 1300px;
      margin: 0 auto;
    }
    @media (max-width: 900px) {
      .suite-grid { grid-template-columns: 1fr; }
    }

    /* ══════════════════════════════════════
       SHARED CARD
    ══════════════════════════════════════ */
    .cardd {
      background: var(--surface); border: 1px solid var(--stt_border);
      border-radius: 24px; padding: 28px 26px 26px;
      position: relative;
      box-shadow: 0 24px 64px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.03);
    }
    .cardd.stt-card::before {
      content: ''; position: absolute; top: 0; left: 28px; right: 28px; height: 2px;
      background: linear-gradient(90deg, transparent, var(--green), var(--cyan), transparent);
      border-radius: 0 0 4px 4px;
    }
    .cardd.tts-card::before {
      content: ''; position: absolute; top: 0; left: 28px; right: 28px; height: 2px;
      background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), transparent);
      border-radius: 0 0 4px 4px;
    }

    /* ══════════════════════════════════════
       CARD HEADER
    ══════════════════════════════════════ */
    .card-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
    .logo-ring {
      width: 38px; height: 38px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .logo-ring svg { width: 18px; height: 18px; }
    .stt-ring { border: 2px solid var(--green); box-shadow: 0 0 14px rgba(79,255,176,.22); }
    .stt-ring svg { fill: var(--green); }
    .tts-ring { border: 2px solid var(--cyan);  box-shadow: 0 0 14px rgba(0,201,255,.22); }
    .tts-ring svg { fill: var(--cyan); }

    .header-text { flex: 1; }
    .header-text h2 { font-size: 1.15rem; font-weight: 800; letter-spacing: -.02em; }
    .header-text p  { font-size: .72rem; color: var(--stt_muted); font-family: 'DM Mono', monospace; margin-top: 1px; }
    .stt-card .header-text h2 { color: var(--green); }
    .tts-card .header-text h2 { color: var(--cyan); }

    .btn-help {
      width: 30px; height: 30px; border-radius: 50%;
      border: 1px solid var(--stt_border); background: var(--panel);
      color: var(--stt_muted); font-family: 'Syne', sans-serif;
      font-size: .88rem; font-weight: 700; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: border-color .2s, color .2s, box-shadow .2s; flex-shrink: 0;
    }
    .stt-card .btn-help:hover { border-color: var(--green); color: var(--green); box-shadow: 0 0 10px rgba(79,255,176,.2); }
    .tts-card .btn-help:hover { border-color: var(--cyan);  color: var(--cyan);  box-shadow: 0 0 10px rgba(0,201,255,.2); }

    /* ══════════════════════════════════════
       STATUS BAR
    ══════════════════════════════════════ */
    .status-barr {
      display: flex; align-items: center; gap: 9px;
      background: var(--panel); border: 1px solid var(--stt_border);
      border-radius: 10px; padding: 9px 14px; margin-bottom: 16px;
      font-family: 'DM Mono', monospace; font-size: .77rem;
    }
    .dott {
      width: 8px; height: 8px; border-radius: 50%;
      flex-shrink: 0; transition: background .3s, box-shadow .3s;
    }
    .dott.idle    { background: var(--stt_muted); }
    .dott.active  { background: var(--green); box-shadow: 0 0 9px var(--green); animation: pulse 1.2s infinite; }
    .dott.paused  { background: var(--yellow);box-shadow: 0 0 9px var(--yellow); }
    .dott.stopped { background: var(--warn);  box-shadow: 0 0 9px var(--warn); }
    .tts-card .dott.active { background: var(--cyan); box-shadow: 0 0 9px var(--cyan); }
    @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
    .status-msg { color: var(--stt_text); flex: 1; min-width: 0; }
    .status-timer { color: var(--stt_muted); white-space: nowrap; font-size: .72rem; }
    .status-timer span { color: var(--warn); }

    /* ══════════════════════════════════════
       BANNERS
    ══════════════════════════════════════ */
    .compat-banner {
      display: none; align-items: flex-start; gap: 10px;
      background: rgba(247,201,72,.05); border: 1px solid rgba(247,201,72,.22);
      border-radius: 9px; padding: 11px 14px; margin-bottom: 14px;
      font-size: .78rem; line-height: 1.5;
    }
    .compat-banner svg { flex-shrink: 0; margin-top: 1px; }
    .compat-title { font-weight: 700; color: var(--yellow); margin-bottom: 2px; }
    .compat-body  { color: var(--stt_muted); }
    .compat-body a { color: var(--cyan); text-decoration: underline; cursor: pointer; }
    .no-support {
      display: none; background: rgba(255,107,107,.07);
      border: 1px solid rgba(255,107,107,.22); color: var(--warn);
      border-radius: 9px; padding: 12px 16px; font-size: .82rem;
      margin-bottom: 14px; line-height: 1.6;
    }

    /* ══════════════════════════════════════
       TEXTAREA
    ══════════════════════════════════════ */
    .textarea-wrap { position: relative; margin-bottom: 14px; }
    .app-textarea {
      width: 100%; min-height: 190px;
      background: var(--panel); border: 1px solid var(--stt_border);
      border-radius: var(--stt_radius); color: var(--stt_text);
      font-family: 'DM Mono', monospace; font-size: .88rem; line-height: 1.7;
      padding: 16px 18px 42px; resize: vertical; outline: none;
      transition: border-color .25s, box-shadow .25s;
    }
    .stt-card .app-textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(79,255,176,.07); }
    .tts-card .app-textarea:focus { border-color: var(--cyan);  box-shadow: 0 0 0 3px rgba(0,201,255,.07); }
    .app-textarea::placeholder { color: var(--stt_muted); }

    .interim-overlay {
      position: absolute; bottom: 48px; left: 18px; right: 18px;
      font-family: 'DM Mono', monospace; font-size: .88rem; line-height: 1.7;
      color: var(--stt_muted); pointer-events: none;
      white-space: pre-wrap; word-break: break-word;
    }
    .highlight-overlay {
      position: absolute; inset: 0;
      padding: 16px 18px 42px;
      font-family: 'DM Mono', monospace; font-size: .88rem; line-height: 1.7;
      color: transparent; pointer-events: none;
      white-space: pre-wrap; word-break: break-word;
      border-radius: var(--stt_radius); overflow: hidden;
    }
    .highlight-overlay mark { background: rgba(0,201,255,.2); color: transparent; border-radius: 3px; }

    .char-count {
      position: absolute; bottom: 12px; right: 14px;
      font-family: 'DM Mono', monospace; font-size: .68rem; color: var(--stt_muted);
    }

    /* ══════════════════════════════════════
       TTS CONTROLS (voice / rate / volume)
    ══════════════════════════════════════ */
    .controls-grid {
      display: grid; grid-template-columns: 2fr 1fr 1fr;
      gap: 10px; margin-bottom: 14px;
    }
    .ctrl-group { display: flex; flex-direction: column; gap: 6px; }
    .ctrl-label {
      font-family: 'DM Mono', monospace; font-size: .67rem;
      color: var(--stt_muted); letter-spacing: .06em; text-transform: uppercase;
      display: flex; justify-content: space-between; align-items: center;
    }
    .ctrl-val { color: var(--cyan); }
    #tts-voice {
      background: var(--panel); border: 1px solid var(--stt_border);
      color: var(--stt_text); border-radius: 8px; padding: 8px 30px 8px 10px;
      font-family: 'DM Mono', monospace; font-size: .75rem;
      outline: none; cursor: pointer; width: 100%;
      appearance: none; transition: border-color .2s;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7' viewBox='0 0 11 7'%3E%3Cpath d='M1 1l4.5 4.5L10 1' stroke='%235a6175' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat; background-position: right 10px center;
    }
    #tts-voice:focus { border-color: var(--cyan); }
    #tts-voice option { background: #1a1e29; }
    input[type=range] {
      -webkit-appearance: none; appearance: none;
      width: 100%; height: 4px; border-radius: 4px; outline: none; cursor: pointer;
      background: linear-gradient(90deg, var(--cyan) var(--pct,50%), var(--stt_border) var(--pct,50%));
    }
    input[type=range]::-webkit-slider-thumb {
      -webkit-appearance: none; width: 15px; height: 15px; border-radius: 50%;
      background: var(--cyan); border: 2px solid var(--surface);
      box-shadow: 0 0 7px rgba(0,201,255,.4); transition: transform .15s;
    }
    input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.2); }
    input[type=range]::-moz-range-thumb {
      width: 15px; height: 15px; border-radius: 50%;
      background: var(--cyan); border: 2px solid var(--surface);
    }

    /* TTS toolbar */
    .toolbar {
      display: flex; align-items: center; gap: 4px;
      margin-bottom: 8px; flex-wrap: wrap;
    }
    .toolbar-label {
      font-family: 'DM Mono', monospace; font-size: .65rem;
      color: var(--stt_muted); letter-spacing: .06em; text-transform: uppercase;
      margin-right: 2px; white-space: nowrap;
    }
    .tb-btn {
      display: flex; align-items: center; gap: 4px; padding: 4px 9px;
      background: var(--panel); border: 1px solid var(--stt_border);
      border-radius: 6px; color: var(--stt_muted);
      font-family: 'DM Mono', monospace; font-size: .68rem;
      cursor: pointer; transition: border-color .18s, color .18s, background .18s;
      white-space: nowrap;
    }
    .tb-btn svg { width: 11px; height: 11px; flex-shrink: 0; }
    .tb-btn:hover:not(:disabled) { border-color: var(--cyan); color: var(--cyan); background: rgba(0,201,255,.05); }
    .tb-btn:active:not(:disabled) { transform: scale(.95); }
    .tb-btn:disabled { opacity: .28; cursor: not-allowed; }
    .tb-sep { width: 1px; height: 16px; background: var(--stt_border); margin: 0 1px; flex-shrink: 0; }

    /* TTS selection badge */
    .sel-badge {
      display: none; align-items: center; gap: 8px;
      background: rgba(0,201,255,.07); border: 1px solid rgba(0,201,255,.22);
      border-radius: 7px; padding: 6px 12px; margin-bottom: 10px;
      font-family: 'DM Mono', monospace; font-size: .72rem; color: var(--cyan);
    }
    .sel-badge svg { width: 13px; height: 13px; fill: var(--cyan); flex-shrink: 0; }
    .sel-clear { margin-left: auto; background: none; border: none; color: var(--stt_muted); cursor: pointer; font-size: .82rem; transition: color .15s; }
    .sel-clear:hover { color: var(--warn); }

    /* TTS progress */
    .progress-wrap { height: 3px; border-radius: 3px; background: var(--stt_border); margin-bottom: 12px; overflow: hidden; }
    .progress-bar  { height: 100%; width: 0%; background: linear-gradient(90deg, var(--cyan), var(--purple)); border-radius: 3px; transition: width .25s ease; }

    /* ══════════════════════════════════════
       BUTTON ROWS
    ══════════════════════════════════════ */
    .btn-row { display: grid; gap: 8px; margin-bottom: 14px; }
    .stt-btns { grid-template-columns: repeat(5, 1fr); }
    .tts-btns { grid-template-columns: repeat(5, 1fr); }

    .btn {
      position: relative; padding: 11px 6px;
      border: 1px solid var(--stt_border); border-radius: var(--stt_radius);
      background: var(--panel); color: var(--stt_text);
      font-family: 'Syne', sans-serif; font-size: .74rem; font-weight: 600;
      letter-spacing: .02em; cursor: pointer;
      transition: background .2s, border-color .2s, color .2s, transform .12s, box-shadow .2s;
      overflow: hidden; display: flex; flex-direction: column; align-items: center; gap: 5px;
    }
    .btn svg { width: 16px; height: 16px; }
    .btn:not(:disabled):hover { background: #20263a; border-color: #3a4260; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,.3); }
    .btn:not(:disabled):active { transform: translateY(0); }
    .btn::after { content:''; position:absolute; inset:0; background: radial-gradient(circle at center, rgba(255,255,255,.1), transparent 70%); opacity:0; transition:opacity .3s; }
    .btn:not(:disabled):active::after { opacity: 1; }
    .btn:disabled { opacity: .22; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

    /* STT button colours */
    .btn-stt-start:not(:disabled)  { border-color: rgba(79,255,176,.3);  color: var(--green); }
    .btn-stt-start:not(:disabled):hover  { border-color: var(--green); box-shadow: 0 8px 22px rgba(79,255,176,.14); }
    .btn-stt-pause:not(:disabled)  { border-color: rgba(247,201,72,.3);  color: var(--yellow); }
    .btn-stt-pause:not(:disabled):hover  { border-color: var(--yellow); box-shadow: 0 8px 22px rgba(247,201,72,.12); }
    .btn-stt-resume:not(:disabled) { border-color: rgba(0,201,255,.3);   color: var(--cyan); }
    .btn-stt-resume:not(:disabled):hover { border-color: var(--cyan);   box-shadow: 0 8px 22px rgba(0,201,255,.12); }
    .btn-stt-stop:not(:disabled)   { border-color: rgba(255,107,107,.3); color: var(--warn); }
    .btn-stt-stop:not(:disabled):hover   { border-color: var(--warn);   box-shadow: 0 8px 22px rgba(255,107,107,.12); }
    .btn-stt-clear:not(:disabled)  { border-color: rgba(180,140,255,.3); color: var(--purple); }
    .btn-stt-clear:not(:disabled):hover  { border-color: var(--purple); box-shadow: 0 8px 22px rgba(180,140,255,.12); }

    /* TTS button colours */
    .btn-tts-start:not(:disabled)  { border-color: rgba(0,201,255,.3);   color: var(--cyan); }
    .btn-tts-start:not(:disabled):hover  { border-color: var(--cyan);   box-shadow: 0 8px 22px rgba(0,201,255,.14); }
    .btn-tts-pause:not(:disabled)  { border-color: rgba(247,201,72,.3);  color: var(--yellow); }
    .btn-tts-pause:not(:disabled):hover  { border-color: var(--yellow); box-shadow: 0 8px 22px rgba(247,201,72,.12); }
    .btn-tts-resume:not(:disabled) { border-color: rgba(79,255,176,.3);  color: var(--green); }
    .btn-tts-resume:not(:disabled):hover { border-color: var(--green);  box-shadow: 0 8px 22px rgba(79,255,176,.12); }
    .btn-tts-stop:not(:disabled)   { border-color: rgba(255,107,107,.3); color: var(--warn); }
    .btn-tts-stop:not(:disabled):hover   { border-color: var(--warn);   box-shadow: 0 8px 22px rgba(255,107,107,.12); }
    .btn-tts-clear:not(:disabled)  { border-color: rgba(180,140,255,.3); color: var(--purple); }
    .btn-tts-clear:not(:disabled):hover  { border-color: var(--purple); box-shadow: 0 8px 22px rgba(180,140,255,.12); }

    /* ══════════════════════════════════════
       HINT BAR
    ══════════════════════════════════════ */
    .hint {
      padding: 9px 14px; background: var(--panel); border: 1px solid var(--stt_border);
      border-radius: 9px; font-family: 'DM Mono', monospace; font-size: .7rem;
      color: var(--stt_muted); display: flex; gap: 5px; flex-wrap: wrap; align-items: center;
    }
    .hint strong { color: var(--stt_text); }
    .htag { padding: 2px 8px; border-radius: 20px; font-size: .67rem; }
    .htag.g { background: rgba(79,255,176,.08);  border: 1px solid rgba(79,255,176,.18);  color: var(--green); }
    .htag.c { background: rgba(0,201,255,.08);   border: 1px solid rgba(0,201,255,.18);   color: var(--cyan); }
    .htag.r { background: rgba(255,107,107,.08); border: 1px solid rgba(255,107,107,.18); color: var(--warn); }

    /* ══════════════════════════════════════
       MODAL
    ══════════════════════════════════════ */
    .modal-backdrop {
      display: none; position: fixed; inset: 0; z-index: 200;
      background: rgba(0,0,0,.74); backdrop-filter: blur(6px);
      align-items: center; justify-content: center; padding: 18px;
    }
    .modal-backdrop.open { display: flex; }
    .modal {
      background: var(--surface); border: 1px solid var(--stt_border);
      border-radius: 20px; width: 100%; max-width: 560px;
      max-height: 90vh; overflow-y: auto;
      box-shadow: 0 40px 100px rgba(0,0,0,.7);
      animation: modalIn .2s ease;
    }
    @keyframes modalIn { from{opacity:0;transform:translateY(12px) scale(.97)} to{opacity:1;transform:none} }
    .modal-header {
      display: flex; align-items: center; gap: 11px;
      padding: 20px 24px 15px; border-bottom: 1px solid var(--stt_border);
      position: sticky; top: 0; background: var(--surface); z-index: 2;
    }
    .modal-header h2 { font-size: 1rem; font-weight: 800; flex: 1; }
    .modal-close {
      width: 28px; height: 28px; border-radius: 50%;
      border: 1px solid var(--stt_border); background: var(--panel);
      color: var(--stt_muted); font-size: .9rem; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: border-color .2s, color .2s;
    }
    .modal-close:hover { border-color: var(--warn); color: var(--warn); }
    .modal-body { padding: 20px 24px 26px; }

    .tab-bar {
      display: flex; gap: 4px; background: var(--panel); border: 1px solid var(--stt_border);
      border-radius: 9px; padding: 4px; margin-bottom: 20px;
    }
    .tab {
      flex: 1; padding: 7px 4px; border: none; border-radius: 6px;
      background: transparent; color: var(--stt_muted);
      font-family: 'Syne', sans-serif; font-size: .74rem; font-weight: 600;
      cursor: pointer; transition: background .18s, color .18s;
      display: flex; align-items: center; justify-content: center; gap: 4px;
    }
    .tab.active { background: var(--surface); color: var(--stt_text); box-shadow: 0 1px 4px rgba(0,0,0,.4); }
    .tab-panel { display: none; }
    .tab-panel.active { display: block; }

    .sec-title {
      font-size: .74rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
      margin-bottom: 12px; display: flex; align-items: center; gap: 8px;
    }
    .sec-title.g { color: var(--green); }
    .sec-title.c { color: var(--cyan); }
    .sec-title.g::after,.sec-title.c::after { content:''; flex:1; height:1px; background: linear-gradient(90deg, var(--stt_border), transparent); }
    .hsec { margin-bottom: 20px; }
    .hsec:last-child { margin-bottom: 0; }

    .use-steps { display: flex; flex-direction: column; gap: 8px; }
    .use-step { display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border: 1px solid var(--stt_border); border-radius: 9px; padding: 11px 13px; }
    .use-step-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
    .use-step-body { font-size: .81rem; line-height: 1.55; color: var(--stt_muted); }
    .use-step-body strong { color: var(--stt_text); display: block; margin-bottom: 1px; }

    .mic-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
    .mic-tab {
      padding: 5px 13px; border-radius: 20px; border: 1px solid var(--stt_border);
      background: var(--panel); color: var(--stt_muted);
      font-family: 'Syne', sans-serif; font-size: .74rem; font-weight: 600;
      cursor: pointer; transition: all .18s;
    }
    .mic-tab.active { background: rgba(0,201,255,.1); border-color: var(--cyan); color: var(--cyan); }
    .mic-steps { display: none; }
    .mic-steps.active { display: block; }
    .steps-list { list-style: none; }
    .steps-list li {
      display: flex; gap: 11px; align-items: flex-start;
      padding: 9px 0; border-bottom: 1px solid var(--stt_border);
      font-size: .81rem; line-height: 1.5; color: var(--stt_muted);
    }
    .steps-list li:last-child { border-bottom: none; }
    .step-num {
      width: 20px; height: 20px; border-radius: 50%;
      background: rgba(0,201,255,.1); border: 1px solid rgba(0,201,255,.22);
      color: var(--cyan); font-family: 'DM Mono', monospace; font-size: .68rem;
      display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px;
    }
    .step-text strong { color: var(--stt_text); }
    .kbd { display: inline-block; background: var(--panel); border: 1px solid var(--stt_border); color: var(--stt_text); border-radius: 4px; padding: 1px 5px; font-family: 'DM Mono', monospace; font-size: .71rem; }
    .tip-box { margin-top: 12px; padding: 11px 13px; background: rgba(0,201,255,.05); border: 1px solid rgba(0,201,255,.14); border-radius: 8px; font-size: .78rem; color: var(--stt_muted); line-height: 1.55; }
    .tip-box strong { color: var(--cyan); }
    .tip-box.warn { background: rgba(255,107,107,.05); border-color: rgba(255,107,107,.14); }
    .tip-box.warn strong { color: var(--warn); }

    .state-tbl { width: 100%; border-collapse: collapse; font-family: 'DM Mono', monospace; font-size: .7rem; }
    .state-tbl th { text-align: left; padding: 6px 5px; color: var(--stt_muted); border-bottom: 1px solid var(--stt_border); font-weight: 600; }
    .state-tbl th.c,.state-tbl td.c { text-align: center; }
    .state-tbl td { padding: 6px 5px; border-bottom: 1px solid var(--stt_border); color: var(--stt_muted); }
    .state-tbl tr:last-child td { border-bottom: none; }

    @media (max-width: 480px) {
      .stt-btns,.tts-btns { grid-template-columns: repeat(3,1fr); }
      .controls-grid { grid-template-columns: 1fr; }
      .modal-body { padding: 16px 16px 22px; }
    }