/* Base reset */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --shell-max-width:1100px;
  --shell-gutter:2.5rem;
}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);color:#e6f0ff;min-height:100vh}

.hidden{display:none!important}

/* Header */
.app-header{background:rgba(26,26,46,.9);backdrop-filter:blur(10px);border-bottom:1px solid rgba(79,172,254,.2);display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.6rem;gap:1.15rem;flex-wrap:wrap;width:min(var(--shell-max-width),calc(100% - var(--shell-gutter)));margin:1.25rem auto 0;border-radius:22px 22px 0 0;box-shadow:0 22px 48px rgba(4,12,28,.35)}
.brand{font-weight:700;font-size:1.2rem;color:#46b3ff;display:flex;align-items:center;gap:.4rem}
.brand canvas{width:36px;height:36px}
.header-actions{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.pill{border-radius:999px;padding:.52rem .95rem;border:1px solid rgba(79,172,254,.25);background:transparent;color:#e6f0ff;cursor:pointer;transition:.2s}
.pill:hover{transform:translateY(-1px);box-shadow:0 10px 20px -18px rgba(79,172,254,.85)}
.pill.active,
#handsFreeToggle.active{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#0a0a0a;border:0}
.pill.danger{background:rgba(255,101,132,.18);border-color:rgba(255,101,132,.4)}
.pill.danger:hover{box-shadow:0 12px 26px -18px rgba(255,101,132,.85);transform:translateY(-1px)}
.mode-toggle,.new-chat{border-radius:999px;padding:.45rem .8rem;border:1px solid rgba(79,172,254,.25);background:rgba(15,52,96,.35);color:#e6f0ff;cursor:pointer}

/* Tabs */
.tabbar{display:flex;gap:.7rem;padding:.7rem 1.6rem;border-bottom:1px solid rgba(79,172,254,.15);width:min(var(--shell-max-width),calc(100% - var(--shell-gutter)));margin:.45rem auto 0;border-radius:0 0 20px 20px;background:rgba(15,28,52,.4);backdrop-filter:blur(8px);flex-wrap:wrap;justify-content:flex-start}
.tabbar button{background:transparent;border:1px solid rgba(79,172,254,.18);color:#cde8ff;padding:.55rem 1rem;border-radius:999px;cursor:pointer;transition:background .2s ease; font-weight:500;font-size:.92rem}
.tabbar button.active{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#0a0a0a}

.app-main{padding:1.5rem 0;width:min(var(--shell-max-width),calc(100% - var(--shell-gutter)));margin:0 auto;display:flex;flex-direction:column;gap:1.5rem}
.tab-panel{padding:0}

.panel{position:relative;background:rgba(15,28,52,.55);border:1px solid rgba(79,172,254,.18);border-radius:22px;padding:1.75rem;box-shadow:0 18px 40px rgba(5,12,26,.25);display:flex;flex-direction:column;gap:1.35rem}
.panel.card{background:rgba(15,28,52,.58)}
.panel h3{margin:0;font-size:1.2rem;letter-spacing:.01em}
.panel .muted{max-width:72ch}

/* Chat area */
.messages{background:rgba(15,28,52,.55);border:1px solid rgba(79,172,254,.2);border-radius:16px;min-height:48vh;padding:1rem;overflow-y:auto}
.input-bar{margin-top:1rem;display:flex;gap:1rem;flex-wrap:wrap;align-items:center;background:rgba(15,28,52,.55);border:1px solid rgba(79,172,254,.2);border-radius:18px;padding:1rem}
.text-input{display:flex;gap:.5rem;align-items:center;flex:1}
#userInput{flex:1;padding:.6rem .8rem;border-radius:12px;border:1px solid rgba(79,172,254,.25);background:rgba(0,0,0,.25);color:#e6f0ff;box-shadow:0 8px 18px -16px rgba(79,172,254,.75)}
.input-bar label{font-size:.9rem;opacity:.85;display:flex;align-items:center;gap:.4rem}
.input-bar select{padding:.5rem .85rem;border-radius:12px;border:1px solid rgba(79,172,254,.25);background:rgba(9,20,40,.45);color:#e6f0ff;min-width:160px;box-shadow:0 8px 18px -16px rgba(79,172,254,.8);transition:border .2s ease}
.input-bar select:focus{outline:none;border-color:rgba(79,172,254,.55)}
.language-selector{display:flex;flex-direction:column;gap:.4rem}
.language-selector select{width:100%}
.voice-preferences label{gap:.35rem}
.voice-preferences select{padding:.5rem .85rem;border-radius:12px;border:1px solid rgba(79,172,254,.25);background:rgba(9,20,40,.45);color:#e6f0ff}
.send{padding:.55rem 1.1rem;border-radius:12px;border:1px solid rgba(79,172,254,.25);background:linear-gradient(135deg,#4facfe,#00f2fe);color:#0a0a0a;cursor:pointer;box-shadow:0 10px 24px -16px rgba(79,172,254,.8)}

.voice-controls{display:flex;gap:.9rem;align-items:center;flex-wrap:wrap}
.voice-controls .voice-preferences{display:flex;gap:.55rem;align-items:center;flex-wrap:wrap}
#record-audio,#stop-recording{padding:.55rem .95rem;border-radius:10px;border:1px solid rgba(79,172,254,.25);background:rgba(15,52,96,.35);color:#e6f0ff;cursor:pointer;transition:.2s}
#record-audio:hover,#stop-recording:hover{box-shadow:0 8px 18px -14px rgba(79,172,254,.7);transform:translateY(-1px)}
#stop-recording.hidden{display:none}

.status-indicator{opacity:.9}

body.light #userInput{background:rgba(255,255,255,.92);color:#101010;border-color:rgba(15,52,96,.12)}
body.light .input-bar select,body.light .voice-preferences select{background:rgba(255,255,255,.95);color:#111111;border-color:rgba(15,52,96,.12)}

/* Bubbles */
.msg{margin:.4rem 0;display:flex}
.msg.user{justify-content:flex-end}
.msg .bubble{max-width:70%;padding:.6rem .8rem;background:rgba(79,172,254,.14);border:1px solid rgba(79,172,254,.25);border-radius:12px}
.msg.assistant .bubble{background:rgba(0,0,0,.25)}
.msg .bubble p{margin:.25rem 0 0 0;white-space:pre-wrap}
.muted{opacity:.8;font-size:.9em}

/* Phrases (legacy card list) */
.phrases{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.75rem}
.phrases .cardlet{background:rgba(15,28,52,.5);border:1px solid rgba(79,172,254,.2);padding:.75rem;border-radius:12px}

/* NEW: Phrases spheres grid */
.phrases-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));align-items:start;margin-top:1rem}
.phrases-tier{text-align:center}
.phrases-tier h3{margin-bottom:.5rem;opacity:.85}
.sphere-wrap{position:relative;width:260px;height:260px;margin:auto}
.orbit-chip{position:absolute;background:rgba(255,255,255,.08);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:.25rem .6rem;font-size:.85rem;cursor:pointer;user-select:none;transition:.2s;color:#e6f0ff}
.orbit-chip:hover{background:rgba(79,172,254,.25);color:#fff}

.detail-card{margin-top:1rem;padding:1rem;border:1px solid rgba(79,172,254,.2);border-radius:14px;background:rgba(15,28,52,.55);color:inherit}
.detail-card .detail-head{font-weight:600;font-size:1.05rem;margin-bottom:.35rem}
.detail-card .detail-description{margin:.35rem 0;line-height:1.4}
.translation-list{margin:.5rem 0 0;padding-left:1.1rem;list-style:disc}
.translation-list li{margin:.25rem 0;font-size:.95rem;text-align:left}
.detail-card .muted{opacity:.7}

/* Corrections side drawer */
.chat-layout{display:flex;gap:1.2rem;align-items:flex-start;flex-wrap:wrap}
.chat-sidebar{flex:0 0 260px;display:flex;flex-direction:column;gap:1rem}
.chat-sidebar .pill.full{width:100%;justify-content:center}
.chat-onboarding{padding:1.25rem;border-radius:18px;background:rgba(79,172,254,.14);border:1px solid rgba(79,172,254,.25);display:flex;flex-direction:column;gap:.75rem}
.chat-onboarding h3{margin:0;font-size:1.15rem}
.chat-onboarding p{margin:0;line-height:1.5}
.chat-onboarding.hidden{display:none}
.chat-sidecontrols{padding:1.1rem;border-radius:16px;background:rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:.75rem}
.chat-sidecontrols h4{margin:0 0 .25rem 0;font-size:1rem;opacity:.85}
.chat-history{margin-top:1.25rem;padding:1rem;border-radius:18px;background:rgba(5,10,25,.65);border:1px solid rgba(79,172,254,.2);box-shadow:0 18px 35px rgba(6,8,20,.4)}
.chat-history__header{display:flex;align-items:center;justify-content:space-between;gap:.5rem}
.chat-history__list{display:flex;flex-direction:column;gap:.75rem;margin-top:.75rem}
.chat-history__item strong{display:block;font-size:1rem;margin-bottom:.25rem;color:#e6f0ff}
.chat-history__item p{margin:0;font-size:.9rem;line-height:1.4}
.chat-main{flex:1 1 420px;display:flex;flex-direction:column;min-width:0}
.chat-corrections{flex:0 0 260px;background:rgba(15,28,52,.55);border:1px solid rgba(79,172,254,.2);border-radius:16px;padding:.75rem;display:flex;flex-direction:column}
.chat-corrections h4{margin-bottom:.5rem;font-size:1rem;opacity:.85}
.correction-item{border:1px solid rgba(79,172,254,.25);border-radius:.75rem;padding:.5rem .75rem;margin:.5rem 0;background:rgba(0,0,0,.15)}
.correction-original,.correction-suggestion{margin:.25rem 0;font-size:.9rem}
.detail-toggle{margin-top:.4rem;padding:.35rem .6rem;border-radius:8px;border:1px solid rgba(79,172,254,.3);background:rgba(79,172,254,.12);color:#e6f0ff;font-size:.85rem;cursor:pointer}
.detail-toggle:hover{background:rgba(79,172,254,.25)}
.correction-detail{margin-top:.45rem;font-size:.85rem;line-height:1.4;background:rgba(0,0,0,.18);padding:.45rem .6rem;border-radius:.65rem;border:1px solid rgba(79,172,254,.2)}
.correction-detail.hidden{display:none}

.tab-language-picker{display:flex;justify-content:flex-end;align-items:center;font-size:.9rem;margin-bottom:.5rem;gap:.5rem}
.tab-language-picker label{display:flex;align-items:center;gap:.35rem;opacity:.85}
.tab-language-picker select{padding:.35rem .6rem;border-radius:8px;border:1px solid rgba(79,172,254,.3);background:rgba(15,52,96,.35);color:#e6f0ff}


/* Light theme overrides */
body.light{background:linear-gradient(135deg,#f5f7ff 0%,#eef2ff 50%,#e6f0ff 100%);color:#0a0a0a}
body.light .app-header{background:rgba(255,255,255,.85);border-color:rgba(15,52,96,.12)}
body.light .brand{color:#0b6cff}
body.light .mode-toggle,body.light .new-chat{background:#eef2ff;color:#101010;border-color:rgba(15,52,96,.12)}
body.light .pill{background:rgba(239,243,255,.9);color:#101010;border-color:rgba(15,52,96,.18)}
body.light .pill:hover{box-shadow:0 10px 24px -18px rgba(15,52,96,.45)}
body.light .pill.ghost{background:rgba(239,243,255,.65);color:#101010}
body.light .pill.danger{background:rgba(255,101,132,.28);border-color:rgba(255,101,132,.45);color:#101010}
body.light .pill.danger:hover{box-shadow:0 12px 26px -18px rgba(255,101,132,.65)}
body.light .messages{background:rgba(255,255,255,.8);border-color:rgba(15,52,96,.12)}
.analytics-panel{margin:1.5rem 0;padding:1.75rem;border-radius:16px;background:rgba(15,63,173,.08);border:1px solid rgba(255,255,255,.1);box-shadow:0 18px 32px -18px rgba(15,63,173,.55);display:flex;flex-direction:column;gap:1.25rem}
.analytics-panel.hidden{display:none}
.analytics-header{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap}
.score-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(79,172,254,.35),rgba(15,63,173,.4));border-radius:999px;padding:1.1rem 1.6rem;color:#fff;box-shadow:0 10px 24px -14px rgba(79,172,254,.9)}
.score-label{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;opacity:.8}
.score-value{font-size:2.4rem;font-weight:700;line-height:1.1}
.analytics-summary h4{margin:0;font-size:1.25rem}
.analytics-summary p{margin:.35rem 0 0 0;max-width:32rem}
.analytics-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.analytics-metric{background:rgba(0,0,0,.2);border-radius:12px;padding:1rem;display:flex;flex-direction:column;gap:.4rem;border:1px solid rgba(255,255,255,.06)}
.analytics-metric span{font-size:.85rem;opacity:.75}
.analytics-metric strong{font-size:1.4rem}
.analytics-insights{background:rgba(0,0,0,.18);border-radius:12px;padding:1rem 1.2rem;border:1px solid rgba(255,255,255,.06)}
.analytics-insights ul{margin:0;padding-left:1.2rem;display:flex;flex-direction:column;gap:.45rem}
.analytics-insights li{line-height:1.4}
.analytics-actions{display:flex;flex-wrap:wrap;gap:.75rem}
.analytics-panel .muted.small{font-size:.85rem}
.text-error{color:#ff6584}
.reading-panel{gap:1.25rem;position:relative;overflow:hidden}
.reading-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap}
.reading-actions{display:flex;gap:.6rem;align-items:center}
.reading-passage{display:grid;gap:1.25rem;grid-template-columns:minmax(0,2fr) minmax(0,1.2fr);align-items:flex-start}
.reading-side{display:grid;gap:.9rem;background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.06);padding:1rem 1.2rem;border-radius:12px;height:100%}
.reading-side>div{display:flex;flex-direction:column;gap:.45rem}
.reading-side h5{margin:0 0 .35rem 0}
.reading-text{line-height:1.6;white-space:pre-wrap}
.reading-questions{display:flex;flex-direction:column;gap:1rem}
.reading-question{background:rgba(0,0,0,.18);border-radius:12px;border:1px solid rgba(255,255,255,.06);padding:1rem;display:flex;flex-direction:column;gap:.65rem}
.reading-question label{font-weight:600;line-height:1.4}
.reading-question textarea{min-height:110px;border-radius:10px;border:1px solid rgba(79,172,254,.25);background:rgba(0,0,0,.25);color:#e6f0ff;padding:.75rem;resize:vertical}
.reading-feedback{background:rgba(79,172,254,.12);border-radius:10px;padding:.65rem .8rem;border:1px solid rgba(79,172,254,.25);font-size:.9rem}
.reading-feedback.negative{background:rgba(255,101,132,.12);border-color:rgba(255,101,132,.3)}
.reading-insight{font-size:.9rem;opacity:.85}
.reading-form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem}
.reading-form-actions .pill{min-width:180px;justify-content:center;text-align:center}
.reading-form-actions .pill[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
#readingVocab{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none;padding:0;margin:0}
#readingVocab li{background:rgba(79,172,254,.18);border-radius:999px;padding:.3rem .75rem;font-size:.85rem;border:1px solid rgba(79,172,254,.3)}
.muted.small{font-size:.85rem}
.translate-panel{display:flex;flex-direction:column;gap:1.6rem}
.translate-layout{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:flex-start}
.translate-controls{flex:2 1 320px;display:flex;flex-direction:column;gap:1rem}
.translate-language-row{display:flex;gap:1rem;flex-wrap:wrap}
.translate-language-row label{flex:1 1 180px;display:flex;flex-direction:column;gap:.4rem;font-weight:600}
.translate-form select{width:100%;padding:.6rem;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(9,20,40,.45);color:#fff}
body.light .translate-form select{background:rgba(255,255,255,.95);color:#101010}
.translate-form textarea{width:100%;min-height:144px;padding:.75rem;border-radius:16px;border:1px solid rgba(255,255,255,.12);background:rgba(9,20,40,.52);color:#f0f7ff;resize:vertical}
body.light .translate-form textarea{background:rgba(255,255,255,.92);color:#101010}
.translate-actions{display:flex;align-items:center;gap:1rem}
.translate-actions .muted{min-height:1.25rem}
.translate-result{min-height:3.4rem;padding:1rem;border-radius:18px;background:rgba(79,172,254,.12);color:#fff;line-height:1.55}
body.light .translate-result{background:rgba(79,172,254,.18);color:#111111}
.translate-save{display:flex;flex-direction:column;gap:.8rem;padding:1rem;border-radius:16px;background:rgba(255,255,255,.05)}
body.light .translate-save{background:rgba(15,28,52,.08);color:#101010}
.translate-save h4{margin:0}
.translate-save-fields{display:flex;flex-wrap:wrap;gap:1rem}
.translate-save-fields label{flex:1 1 180px;display:flex;flex-direction:column;gap:.35rem;font-weight:600}
.translate-save-fields input{padding:.65rem;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(9,20,40,.5);color:#f0f7ff}
body.light .translate-save-fields input{background:rgba(255,255,255,.95);color:#101010}
.translate-external{flex:1 1 240px;display:flex;flex-direction:column;gap:.8rem;padding:1.25rem;border-radius:20px;background:rgba(9,20,40,.45);border:1px solid rgba(79,172,254,.12)}
.translate-external h4{margin:0}
.translate-external p{margin:0;line-height:1.5}
body.light .translate-external{background:rgba(255,255,255,.88);border-color:rgba(15,28,52,.12);color:#111111}
.translate-queue{display:flex;flex-direction:column;gap:1rem;border-top:1px solid rgba(255,255,255,.08);padding-top:1.25rem;margin-top:1.25rem}
body.light .translate-queue{border-top:1px solid rgba(15,28,52,.15)}
.translate-queue-header{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.translate-queue-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}
.translate-queue-list li{display:flex;flex-wrap:wrap;align-items:center;gap:.8rem;padding:.85rem 1rem;border-radius:14px;background:rgba(15,28,52,.55);border:1px solid rgba(79,172,254,.2)}
body.light .translate-queue-list li{background:rgba(255,255,255,.9);border-color:rgba(15,28,52,.12);color:#0c1726}
body.light .muted{color:#1f2937;opacity:.95}
body.light .coach-status{background:#f4f7ff;border-color:rgba(11,27,42,.12);color:#101010}
body.light .coach-status.info{background:#e2edff;border-color:rgba(11,108,255,.3)}
body.light .coach-status.success{background:#e0f5ea;border-color:rgba(34,139,94,.32);color:#06452a}
body.light .coach-status.warning{background:#fff3d6;border-color:rgba(217,150,0,.35);color:#5b3a00}
body.light .coach-status.danger{background:#ffe6ea;border-color:rgba(204,67,91,.35);color:#6a1a2f}
body.light .coach-status.ghost{background:#f0f4ff;border-color:rgba(11,27,42,.12);color:#101010}
body.light .coach-status__detail{color:#1c3558;opacity:.95}
body.light .coach-status__grid .badge span{color:#1c3558;opacity:.9}
body.light .session-item .muted{color:#1f2937;opacity:.95}
.translate-queue-list .word-meta{flex:1 1 60%;display:flex;flex-direction:column;gap:.3rem}
.translate-queue-list .word-meta span{display:block}
@media(max-width:900px){
  .reading-passage{grid-template-columns:minmax(0,1fr);}
}
@media(max-width:980px){
  .chat-layout{flex-direction:column;}
  .chat-sidebar{width:100%;flex:0 0 auto;flex-direction:column}
  .chat-sidecontrols{flex-direction:column}
  .chat-sidecontrols .pill.full{width:100%}
  .chat-corrections{flex:1 1 auto;width:100%}
}
body.light .input-bar{background:rgba(255,255,255,.85);border-color:rgba(15,52,96,.12)}
body.light .tabbar button.active{background:#0b6cff;color:#fff}
body.light .tabbar{background:rgba(255,255,255,.85);border-color:rgba(15,52,96,.12)}
body.light .tabbar button{border-color:rgba(15,52,96,.15);color:#141414}
body.light .app-header{background:rgba(255,255,255,.9);border-color:rgba(15,52,96,.12);box-shadow:0 20px 40px rgba(11,27,42,.18)}
body.light .status-indicator{color:#101010}
body.light .chat-corrections{background:rgba(255,255,255,.85);border-color:rgba(15,52,96,.12)}
body.light .chat-onboarding{background:rgba(11,108,255,.12);border-color:rgba(11,108,255,.25);color:#101010}
body.light .chat-sidecontrols{background:rgba(255,255,255,.92);border-color:rgba(15,52,96,.12);color:#101010}
body.light .chat-history{background:rgba(255,255,255,.85);border-color:rgba(15,52,96,.12);color:#0f172a}
body.light .correction-item{background:#f5f7ff;border-color:rgba(15,52,96,.15)}
body.light .detail-toggle{background:rgba(11,108,255,.08);border-color:rgba(11,108,255,.25);color:#101010}
body.light .detail-toggle:hover{background:rgba(11,108,255,.18)}
body.light .correction-detail{background:rgba(11,108,255,.08);border-color:rgba(11,108,255,.18)}
body.light .tab-language-picker label{color:#101010;opacity:.85}
body.light .tab-language-picker select{background:#eef2ff;border-color:rgba(15,52,96,.12);color:#101010}

/* Light mode phrases */
body.light .phrases .cardlet{background:#f9fbff;border-color:rgba(15,52,96,.12)}
body.light .orbit-chip{background:rgba(15,52,96,.05);border-color:rgba(15,52,96,.12);color:#101010}
body.light .orbit-chip:hover{background:#0b6cff;color:#fff}
body.light .detail-card{background:rgba(255,255,255,.92);border-color:rgba(15,52,96,.12);color:#101010}
body.light .detail-card .detail-head{color:#101010}
body.light .tier-loading{background:rgba(255,255,255,.85);color:#101010}
body.light .tier-loading__message{color:#101010}
body.light .tier-loading__spinner{border-color:rgba(11,27,42,.15);border-top-color:var(--tier-accent,#0b6cff)}
body.light .panel{background:rgba(255,255,255,.9);border-color:rgba(11,27,42,.08);box-shadow:0 18px 36px rgba(11,27,42,.15);color:#0a0a0a}
body.light .panel.card{background:rgba(255,255,255,.94)}

/* Splash */
.loading-container{min-height:50vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem}
.globe-container{width:260px;height:260px;display:flex;align-items:center;justify-content:center;position:relative}
.loading-text{opacity:.8}

/* Startup modal */
.modal-screen{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:1000}
.modal-card.glass{background:rgba(20,30,60,.95);backdrop-filter:blur(12px);padding:2rem;border-radius:16px;max-width:420px;width:90%;text-align:center;color:#e6f0ff}
.modal-card.glass h2{margin-bottom:1rem}
.form-group{margin:1rem 0;text-align:left}

/* First-time walkthrough */
.tour-overlay{position:fixed;inset:0;background:rgba(5,12,28,.78);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:1100;padding:1.5rem}
.tour-overlay.hidden{display:none}
.tour-card{background:linear-gradient(135deg,rgba(15,52,96,.88),rgba(28,79,177,.9));border:1px solid rgba(79,172,254,.35);border-radius:20px;padding:2rem;max-width:520px;width:100%;color:#f5f8ff;box-shadow:0 18px 48px rgba(4,18,38,.55);display:flex;flex-direction:column;gap:1.25rem}
.tour-card h3{margin:0;font-size:1.5rem}
.tour-card ol{margin:0;padding-left:1.2rem;display:flex;flex-direction:column;gap:.75rem;font-size:1rem}
.tour-card li strong{display:block;margin-bottom:.15rem}
.tour-card .pill{align-self:flex-end}
body.light .tour-card{background:linear-gradient(135deg,#ffffff,#eef4ff);color:#101010;border-color:rgba(15,52,96,.18)}
.form-group label{display:block;margin-bottom:.5rem}
.form-group select,.form-group input[type="checkbox"]{margin-top:.25rem}

/* Authentication */
.auth-card{max-width:420px;display:flex;flex-direction:column;gap:1rem}
.auth-form{display:flex;flex-direction:column;gap:.75rem;width:100%}
.auth-form label{display:flex;flex-direction:column;gap:.4rem;font-size:.9rem}
.auth-form input{padding:.6rem .75rem;border-radius:10px;border:none;background:rgba(255,255,255,.1);color:inherit}
.auth-subtitle{margin:0 0 .5rem;opacity:.85}
.auth-hint{font-size:.8rem;opacity:.7;margin-top:-.25rem}
.auth-error{color:#ff6b6b;font-size:.9rem;min-height:1.2rem}
.auth-info{color:#9be7ff;font-size:.9rem;min-height:1.2rem}
.auth-switch{background:none;border:none;color:#9be7ff;font-size:.85rem;text-decoration:underline;cursor:pointer;align-self:flex-end;padding:0}
.auth-switch:hover{color:#fff}
.auth-reset{display:flex;flex-direction:column;gap:.85rem;width:100%;background:rgba(255,255,255,.05);border:1px solid rgba(79,172,254,.2);border-radius:14px;padding:1rem;margin-top:-.25rem;text-align:left}
.register-toggle{width:100%}
.register-toggle>summary{cursor:pointer;padding:.4rem 0;font-weight:600}
.user-badge{display:flex;align-items:center;gap:.5rem;font-weight:600}
.user-badge.hidden{display:none}
.pill.ghost{border-color:rgba(255,255,255,.35);}
.pill.ghost:hover{background:rgba(255,255,255,.08);color:inherit}

/* Session history */
.session-list{list-style:none;margin:1rem 0;padding:0;display:flex;flex-direction:column;gap:.75rem}
.session-item{padding:.75rem;border-radius:12px;background:rgba(255,255,255,.05);cursor:pointer;transition:background .2s ease}
.session-item:hover{background:rgba(255,255,255,.12)}
.session-item .muted{font-size:.8rem}
.session-empty{opacity:.7;margin-top:1rem}
.session-summary{margin:1rem 0;padding:1rem;border-radius:12px;background:rgba(255,255,255,.03);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;text-align:left}
.session-summary .badge{display:flex;flex-direction:column;font-size:.85rem;opacity:.9}
.session-summary .badge strong{font-size:1.1rem;color:#fff}
.session-summary .coach-status{width:100%}
.lesson-preview{margin-top:1rem;padding:1rem;border-radius:12px;background:rgba(255,255,255,.04);text-align:left}
.lesson-preview .coach-status{width:100%}
.lesson-preview h4{margin-top:0;margin-bottom:.5rem}
.lesson-preview ul{margin:0;padding-left:1.1rem}
.lesson-preview.compact{padding:.75rem}
.lesson-assessment-card{margin-top:1.25rem;border:1px solid rgba(79,172,254,.2);border-radius:18px;padding:1.25rem;background:rgba(10,20,40,.45);box-shadow:0 18px 40px rgba(5,12,26,.25);display:flex;flex-direction:column;gap:1rem}
.lesson-assessment__header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.lesson-assessment__actions{display:flex;gap:.5rem;flex-wrap:wrap}
.assessment-form{display:flex;flex-direction:column;gap:.9rem;margin-top:.25rem}
.assessment-question{display:flex;flex-direction:column;gap:.4rem}
.assessment-question label{font-weight:500;font-size:.95rem}
.assessment-question textarea{width:100%;min-height:70px;border-radius:12px;border:1px solid rgba(79,172,254,.25);background:rgba(0,0,0,.2);color:#e6f0ff;padding:.65rem;resize:vertical}
.lesson-assessment__result{margin-top:.25rem}
body.light .assessment-question textarea{background:rgba(255,255,255,.95);color:#0f172a;border-color:rgba(15,52,96,.12)}
.learning-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin:0 0 1rem}
.learning-actions .pill{background:rgba(79,172,254,.15);border-color:rgba(79,172,254,.45)}
.learning-actions .pill:hover{background:rgba(79,172,254,.3)}

.tier-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:2rem;text-align:center;background:rgba(8,15,30,.58);backdrop-filter:blur(10px);z-index:40;pointer-events:none;opacity:0;transition:opacity .25s ease}
.tier-loading.hidden{display:none}
.tier-loading[data-tone="info"]{--tier-accent:#4facfe}
.tier-loading[data-tone="success"]{--tier-accent:#2ed573}
.tier-loading[data-tone="warning"]{--tier-accent:#ffc107}
.tier-loading[data-tone="danger"]{--tier-accent:#ff6b6b}
.tier-loading__content{display:flex;flex-direction:column;align-items:center;gap:.75rem;max-width:320px}
.tier-loading__message{margin:0;font-size:.95rem;line-height:1.5;opacity:.92}
.tier-loading__spinner{width:38px;height:38px;border-radius:50%;border:3px solid rgba(255,255,255,.2);border-top-color:var(--tier-accent,rgba(79,172,254,.9));animation:spin .9s linear infinite}
.tier-loading__spinner.hidden{display:none}

@keyframes spin{to{transform:rotate(360deg)}}

.coach-status{display:flex;flex-direction:column;gap:.4rem;padding:1rem;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);line-height:1.4;font-size:.9rem;backdrop-filter:blur(6px)}
.coach-status strong{font-size:1rem;letter-spacing:.01em}
.coach-status.info{border-color:rgba(79,172,254,.45);background:rgba(79,172,254,.14)}
.coach-status.success{border-color:rgba(46,213,115,.45);background:rgba(46,213,115,.14)}
.coach-status.warning{border-color:rgba(255,193,7,.45);background:rgba(255,193,7,.16)}
.coach-status.danger{border-color:rgba(255,107,107,.55);background:rgba(255,107,107,.16)}
.coach-status.ghost{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.06)}
.coach-status__detail{margin:0;font-size:.85rem;opacity:.9}
.coach-status__grid{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:.35rem}
.coach-status__grid .badge{display:flex;flex-direction:column;gap:.1rem;opacity:1;font-size:.85rem}
.coach-status__grid .badge strong{font-size:1.05rem}
.coach-status__block{margin-top:.5rem}
.coach-status__list{margin:.2rem 0 0;padding-left:1.1rem}
.coach-status__list li{margin-bottom:.2rem}

/* Reset password layout (kept in stylesheet to satisfy CSP) */
body.reset-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a 0%,#1a1a2e 40%,#101935 100%)}
.reset-screen{position:static;background:transparent;min-height:auto}
.reset-card{max-width:420px;width:100%}
.reset-actions{display:flex;flex-direction:column;gap:.75rem;margin-top:1.5rem}