/* HelloBonjour Tutor — estilos
   Layout: barra superior + contenido de una columna (máx. 960px); tarjetas para actividades y grupos. */
/* Marca HelloBonjour (hellobonjour.academy): negro, verde menta y azul eléctrico.
   Títulos en Montserrat, texto en Open Sans. */
:root{
  --black:#000000; --mint:#1df5a3; --blue:#0000ff; --blue-2:#002eff;
  --bg:#f4f5f2; --surface:#ffffff; --ink:#0d0d12; --muted:#565a66; --line:#dcdfe3;
  --accent:#0000ff; --accent-soft:#e6e8ff; --accent-ink:#ffffff;
  --tutor:#e9fbf3; --me:#0000ff; --me-ink:#ffffff;
  --good:#007a4d; --good-soft:#d6fbec; --warn:#9a5b00; --warn-soft:#fbf0de; --bad:#c4281c; --bad-soft:#fde8e6;
  --font-display:"Plus Jakarta Sans","Montserrat",Arial,sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#07070b; --surface:#121219; --ink:#f1f2f5; --muted:#a3a7b3; --line:#262633;
  --accent:#5c6bff; --accent-soft:#1a1d4a; --accent-ink:#ffffff;
  --tutor:#0f2a20; --me:#2a3bff; --me-ink:#ffffff;
  --good:#1df5a3; --good-soft:#0f2a20; --warn:#f0b35a; --warn-soft:#3a2b14; --bad:#ff8a7e; --bad-soft:#3b1f1c; color-scheme:dark}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.5}
.top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding:14px max(16px,env(safe-area-inset-right,0px)) 14px max(16px,env(safe-area-inset-left,0px));
  background:var(--black);color:#fff}
.brand{display:flex;align-items:center;gap:12px}
.logo{display:block;height:44px;width:auto}
.tag{font-family:var(--font-display);font-size:12px;font-weight:700;color:var(--black);background:var(--mint);padding:2px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.08em}
.who{display:flex;align-items:center;gap:10px;font-size:14px}
.role{font-size:12px;font-weight:700;padding:2px 9px;border-radius:999px;background:var(--mint);color:var(--black)}
.top .ghost{color:#fff;border-color:#3a3a44}
.wrap{max-width:960px;margin:0 auto;padding-block:24px 56px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2{font-family:var(--font-display);font-weight:800;letter-spacing:-.01em;margin:0 0 6px;text-wrap:balance}
h1{font-size:28px;color:var(--accent)} h2{font-size:20px} h3{font-size:15px;margin:0 0 4px}
.muted{color:var(--muted)} .small{font-size:13px;color:var(--muted)}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.card p{margin:0}
.pill{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}
.pill.en{background:var(--good-soft);color:var(--good)}
.pill.off{background:var(--bg);color:var(--muted);border:1px solid var(--line)}
button{font:inherit;cursor:pointer;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 14px;font-weight:500}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-family:var(--font-display);font-weight:700}
button.primary:hover:not(:disabled){background:var(--black);border-color:var(--black)}
button.ghost{background:transparent}
button.danger{color:var(--bad)}
button:disabled{opacity:.5;cursor:default}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input,select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 10px;width:100%;min-width:0}
textarea{min-height:72px;resize:vertical}
label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:500;color:var(--muted);min-width:0}
form.box{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
form.box .full{grid-column:1/-1}
@media (max-width:600px){form.box{grid-template-columns:1fr}}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:8px 0 16px;overflow-x:auto}
.tabs button{border:0;border-bottom:2px solid transparent;border-radius:0;background:none;color:var(--muted);padding:8px 12px;white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom:3px solid var(--mint);font-weight:700}
.tablewrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:620px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600}
td.num{font-variant-numeric:tabular-nums}
tr.click{cursor:pointer} tr.click:hover td{background:var(--accent-soft)}
.empty{background:var(--surface);border:1px dashed var(--line);border-radius:14px;padding:20px;color:var(--muted);text-align:center}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(20px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:14px;z-index:20;max-width:90vw}
.login{max-width:440px;margin:40px auto}
.login-logo{display:block;width:180px;height:auto;margin:0 auto 18px}
@media (prefers-color-scheme: dark){.login-logo{filter:invert(1)}}
.login .card{border:0;border-radius:20px;background:var(--mint);color:var(--black);padding:28px}
.login h1{color:var(--blue);font-size:34px;line-height:1.1}
.login .muted,.login label,.login .small{color:#1c2a24}
.login input{background:#fff;border-color:#fff;color:var(--black)}
.back{background:none;border:0;color:var(--accent);padding:0;margin-bottom:8px}
/* live session */
.live{background:var(--surface);border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;min-height:560px}
.live-head{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.timer{font-variant-numeric:tabular-nums;font-weight:600}
.orb-zone{display:flex;flex-direction:column;align-items:center;gap:10px;padding:22px 16px 8px}
.orb{width:120px;height:120px;border-radius:50%;background:var(--black);border:3px solid var(--mint);display:grid;place-items:center;transition:transform .12s ease}
.orb .core{width:56px;height:56px;border-radius:50%;background:var(--mint)}
.orb.talking{border-color:var(--blue-2)} .orb.talking .core{background:var(--blue-2)}
.status{font-size:14px;color:var(--muted);min-height:1.4em;text-align:center}
.msgs{flex:1;overflow-y:auto;padding:12px 16px 16px;display:flex;flex-direction:column;gap:10px;max-height:46vh}
.msg{max-width:80%;display:flex;flex-direction:column;gap:4px;min-width:0}
.msg .bubble{padding:9px 13px;border-radius:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.tutor{align-self:flex-start} .msg.tutor .bubble{background:var(--tutor);border-top-left-radius:4px}
.msg.student{align-self:flex-end;align-items:flex-end} .msg.student .bubble{background:var(--me);color:var(--me-ink);border-top-right-radius:4px}
.msg .who-l{font-size:12px;color:var(--muted)}
.flag{font-size:12.5px;color:var(--bad);font-weight:500}
.live-foot{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;padding:12px;border-top:1px solid var(--line)}
.score{display:flex;gap:18px;flex-wrap:wrap}
.score .n{font-family:var(--font-display);font-size:30px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.score .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
ul.clean{margin:0;padding-left:18px}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.transcript{display:flex;flex-direction:column;gap:6px;font-size:14px}
.transcript .t b{color:var(--muted);font-weight:600}
dialog{border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--ink);max-width:min(720px,92vw);width:100%;padding:0}
dialog::backdrop{background:rgba(0,0,0,.4)}
dialog .dh{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
dialog .db{padding:16px;max-height:70vh;overflow-y:auto;display:flex;flex-direction:column;gap:14px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ============ Vista del alumno (diseño pro) ============
   Columna de celular centrada; tarjeta negra para la misión; la conversación ocupa una pantalla oscura. */
.stu{--s-ink:#0b0b10;--s-muted:#5e6372;--s-line:#ececf1;--s-card:#fff;--s-bg:#f6f7f5;--s-dark:#000;--s-dark2:#16161d;--s-dline:#2c2c35;--s-soft:#eef0ff;
  max-width:560px;margin:-8px auto 0;display:flex;flex-direction:column;gap:18px;padding-bottom:88px;color:var(--s-ink)}
@media (prefers-color-scheme:dark){.stu{--s-ink:#f1f2f5;--s-muted:#a3a7b3;--s-line:#262633;--s-card:#121219;--s-soft:#1a1d4a}}
.stu svg{flex:none}
.s-page{display:flex;flex-direction:column;gap:18px}
.s-center{align-items:center;text-align:center;padding:60px 0}
.s-date{margin:0;font-size:13px;color:var(--s-muted);font-weight:600;text-transform:capitalize}
.s-hello,.s-title{font-family:var(--font-display);font-weight:800;font-size:30px;letter-spacing:-.02em;line-height:1.05;margin:2px 0 0;color:var(--s-ink)}
.s-hello span{color:var(--accent)}
.s-muted{color:var(--s-muted);font-size:13px;margin:0}.s-c{text-align:center}
.s-row{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.s-card{background:var(--s-card);border:1px solid var(--s-line);border-radius:20px;padding:14px 16px;display:flex;flex-direction:column;gap:12px}
.s-week b{font-family:var(--font-display);font-size:14px}
.s-days{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}
.s-days div{display:flex;flex-direction:column;align-items:center;gap:6px}
.s-days small{font-size:11px;color:var(--s-muted);font-weight:600;text-transform:uppercase}
.s-dot{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--s-line);color:#fff}
.s-dot svg{width:15px;height:15px;stroke-width:3}
.s-dot.later{background:none;border:2px solid var(--s-line)}
.s-dot.on{background:var(--accent)}.s-dot.now{background:none;border:2px dashed var(--accent)}
.s-mission{background:var(--s-dark);color:#fff;border-radius:24px;padding:20px;display:flex;flex-direction:column;gap:14px}
.s-mhead{display:flex;justify-content:space-between;align-items:flex-start}
.s-mhead>div{display:flex;flex-direction:column;gap:2px}
.s-eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#9aa0ad;min-height:13px}
.s-num{font-family:var(--font-display);font-weight:800;font-size:44px;line-height:1;color:var(--mint);letter-spacing:-.03em}
.s-lvl{border:1px solid var(--s-dline);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700}
.s-mission h2{font-family:var(--font-display);font-weight:800;font-size:22px;line-height:1.2;margin:0;color:#fff}
.s-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:#b9bdc7}
.s-meta span{display:flex;align-items:center;gap:6px}.s-meta svg{width:15px;height:15px}
.s-meta .s-done{color:var(--mint);font-weight:700}
.s-goals{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.s-goals li{border:1px solid var(--s-dline);border-radius:14px;padding:10px 12px;font-size:14px;font-weight:600}
.s-go{height:52px;border-radius:14px;border:0;background:var(--mint);color:#000;display:flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-weight:800;font-size:16px;cursor:pointer;width:100%}
.s-page>.s-go{background:var(--accent);color:#fff}
.s-go:hover{filter:brightness(.95)}
.s-list{display:flex;flex-direction:column;gap:8px}
.s-list h2{font-family:var(--font-display);font-weight:700;font-size:15px;margin:0 0 2px;color:var(--s-ink)}
.s-item{background:var(--s-card);border:1px solid var(--s-line);border-radius:16px;padding:12px 14px;display:flex;align-items:center;gap:12px;text-align:left;cursor:pointer;color:var(--s-ink);width:100%}
.s-item:hover{border-color:var(--accent)}
.s-item>svg{color:#9aa0ad;width:16px;height:16px}
.s-badge{width:40px;height:40px;flex:none;border-radius:12px;background:var(--s-soft);color:var(--accent);display:grid;place-items:center;font-family:var(--font-display);font-weight:800;font-size:13px}
.s-badge.ok{background:var(--mint);color:#000}
.s-itxt{flex:1;min-width:0;display:flex;flex-direction:column}.s-itxt b{font-size:14px}.s-itxt small{font-size:12px;color:var(--s-muted)}
.s-empty{background:var(--s-card);border:1px dashed var(--s-line);border-radius:20px;padding:28px 20px;text-align:center;color:var(--s-muted)}
.s-dark{background:var(--s-dark);color:#fff;border-radius:24px;padding:20px;display:flex;flex-direction:column;gap:18px}
.s-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.s-stats b{display:block;font-family:var(--font-display);font-weight:800;font-size:28px;color:var(--mint);font-variant-numeric:tabular-nums}
.s-stats small{font-size:12px;color:#b9bdc7}
.s-ladder{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}
.s-ladder div{display:flex;flex-direction:column;align-items:center;gap:6px}
.s-ladder i{width:100%;height:8px;border-radius:999px;background:#2a2a33}.s-ladder i.past{background:var(--mint)}.s-ladder i.now{background:#3b4bff;box-shadow:0 0 0 2px var(--mint)}
.s-ladder span{font-family:var(--font-display);font-size:12px;font-weight:700;color:#9aa0ad}.s-ladder span.now{color:var(--mint)}
.s-words{display:flex;gap:6px;flex-wrap:wrap}
.s-words span{border:1px solid var(--s-line);background:var(--s-card);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600}
.s-nav{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--surface);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  padding:6px max(8px,env(safe-area-inset-left,0px)) calc(10px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-right,0px))}
.s-nav button{border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--muted);font-size:12px;padding:6px 0;border-radius:12px;cursor:pointer}
.s-nav button.on{color:var(--accent);font-weight:700}
.s-preview{align-self:stretch;display:flex;align-items:center;gap:8px;border:1px dashed var(--accent);color:var(--accent);border-radius:14px;padding:6px 6px 6px 12px;font-size:13px;font-weight:600}
.s-preview select{flex:1;min-width:0;border:0;background:var(--s-soft);color:var(--s-ink);border-radius:10px;padding:8px 10px;font:inherit}
.s-nav.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.s-nav .s-staff{color:var(--ink)}
/* conversación */
.s-live{background:#07070b;color:#fff;border-radius:28px;padding:18px 18px 22px;display:flex;flex-direction:column;gap:12px;min-height:calc(100vh - 140px)}
.s-lhead{display:flex;align-items:center;gap:12px}
.s-avatar{width:44px;height:44px;border-radius:50%;background:var(--accent);display:grid;place-items:center;box-shadow:0 0 0 3px #07070b,0 0 0 5px #2c2c35}
.s-live.talking .s-avatar{box-shadow:0 0 0 3px #07070b,0 0 0 5px var(--mint)}
.s-ltitle{flex:1;min-width:0;display:flex;flex-direction:column}.s-ltitle b{font-family:var(--font-display);font-size:15px}.s-ltitle small{font-size:12px;color:#9aa0ad}
.s-timer{font-family:var(--font-display);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;color:#b9bdc7}
.s-close,.s-round{width:40px;height:40px;border-radius:50%;border:1px solid #2c2c35;background:#16161d;color:#fff;display:grid;place-items:center;cursor:pointer;padding:0}
.s-round{width:52px;height:52px}
.s-lgoals{border:1px solid #2c2c35;border-radius:16px;padding:10px 14px;font-size:13px}
.s-lgoals span{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--mint)}
.s-lgoals ul{margin:6px 0 0;padding-left:18px;color:#d6d8de;display:grid;gap:2px}
.s-msgs{flex:1;min-height:220px;max-height:46vh;overflow-y:auto;display:flex;flex-direction:column;gap:10px;padding:6px 0}
.s-msg{display:flex;flex-direction:column;gap:4px;max-width:88%}
.s-msg.tutor{align-self:flex-start}.s-msg.tutor .bubble{font-family:var(--font-display);font-weight:700;font-size:19px;line-height:1.3}
.s-msg.student{align-self:flex-end;align-items:flex-end}.s-msg.student .bubble{background:#16161d;border-radius:18px 18px 4px 18px;padding:10px 14px;font-size:15px;color:#d6d8de}
.s-msg .bubble{overflow-wrap:anywhere}
.s-flag{font-size:12px;color:var(--mint)}
.s-status{margin:0;text-align:center;font-size:13px;color:#9aa0ad}
.s-wave{height:48px;display:flex;align-items:center;justify-content:center;gap:4px;opacity:.35;transition:opacity .3s}
.s-wave span{width:4px;border-radius:2px;background:var(--mint);transform:scaleY(.25)}
.s-live.live .s-wave{opacity:1}.s-live.talking .s-wave span{animation:swave 1s ease-in-out infinite}
@keyframes swave{0%,100%{transform:scaleY(.25)}50%{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){.s-live.talking .s-wave span{animation:none;transform:none}}
.s-lfoot{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px}
.s-lfoot .s-round{justify-self:start}
.s-micwrap{display:flex;flex-direction:column;align-items:center;gap:6px}
.s-mic{width:80px;height:80px;border-radius:50%;border:0;background:var(--mint);color:#000;display:grid;place-items:center;cursor:pointer;box-shadow:0 0 0 8px #0d2a20}
.s-mic svg{width:30px;height:30px}.s-mic.muted{background:#fff;box-shadow:0 0 0 8px #1c1c24}
.s-miclabel{font-size:12px;color:#b9bdc7}
.s-finish{justify-self:end;min-height:52px;padding:0 18px;border-radius:999px;border:0;background:#fff;color:#000;font-family:var(--font-display);font-weight:800;font-size:14px;cursor:pointer}
.s-finish:disabled,.s-round:disabled{opacity:.35;cursor:default}
.s-spinner{width:44px;height:44px;border-radius:50%;border:4px solid var(--s-line);border-top-color:var(--accent);animation:sspin 1s linear infinite}
@keyframes sspin{to{transform:rotate(360deg)}}
/* resultado */
.s-win{background:var(--s-dark);color:#fff;border-radius:24px;padding:22px 20px;display:flex;align-items:center;gap:16px}
.s-win h1{font-family:var(--font-display);font-weight:800;font-size:28px;line-height:1.05;margin:0;color:#fff}
.s-win p{margin:4px 0 0;font-size:13px;color:#b9bdc7}
.s-stamp{width:88px;height:88px;flex:none;border-radius:50%;border:3px solid var(--mint);color:var(--mint);display:grid;place-items:center;transform:rotate(-10deg)}
.s-stamp div{width:72px;height:72px;border-radius:50%;border:1.5px dashed var(--mint);display:flex;flex-direction:column;align-items:center;justify-content:center;font-family:var(--font-display);line-height:1.1}
.s-stamp small{font-size:8px;font-weight:700;letter-spacing:.08em}.s-stamp b{font-size:20px;font-weight:800}
.s-quote{margin:0;font-size:16px;line-height:1.5}
.s-skill{display:flex;flex-direction:column;gap:6px;font-size:13px}
.s-track{height:8px;border-radius:999px;background:var(--s-line);overflow:hidden}
.s-track i{display:block;height:100%;border-radius:999px;background:var(--mint)}.s-track i.hi{background:var(--accent)}
.s-fix{background:var(--s-card);border:1px solid var(--s-line);border-radius:16px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.s-fix s{font-size:13px;color:var(--s-muted)}.s-fix b{font-size:15px}
.s-bul{margin:0;padding-left:18px;display:grid;gap:4px}
@media (max-width:520px){body:has(.stu) #who-name{display:none}}
.who[hidden]{display:none}