/* Trắc nghiệm MBTI - giao diện sáng. TẤT CẢ class có tiền tố mbti- để không đụng theme. */
#mbti-app{
  --bg1:#eef2ff;--bg2:#f6f9ff;--card:#ffffff;--soft:#f3f5fc;--soft2:#eef1fb;
  --accent:#6c5ce7;--accent2:#00a8c6;--text:#1f2433;--muted:#5b6477;--line:#e4e8f4;
  --good:#16a05f;--bad:#e23d5b;--radius:16px;
  display:block;max-width:720px;margin:24px auto;
  font-family:'Roboto','Segoe UI',system-ui,-apple-system,Arial,sans-serif;color:var(--text);
}
#mbti-app *{box-sizing:border-box}
#mbti-app .mbti-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 18px 50px -22px rgba(60,70,120,.45);overflow:hidden}
#mbti-app .mbti-pad{padding:30px}
#mbti-app .mbti-progress-wrap{padding:18px 30px 0}
#mbti-app .mbti-progress-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:8px}
#mbti-app .mbti-timer{font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;white-space:nowrap}
#mbti-app .mbti-timer-low{color:var(--bad)}
#mbti-app .mbti-bar{height:9px;background:var(--soft);border-radius:99px;overflow:hidden}
#mbti-app .mbti-bar>i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s ease}
#mbti-app .mbti-hero{text-align:center}
#mbti-app .mbti-badge{display:inline-block;width:auto;height:auto;min-width:0;min-height:0;max-width:none;border-radius:99px;overflow:visible;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#fff;
  background:linear-gradient(90deg,var(--accent),var(--accent2));padding:6px 14px;margin-bottom:18px;font-weight:600;line-height:1.4}
#mbti-app .mbti-h1{font-size:28px;line-height:1.25;margin:0 0 12px;color:var(--text);font-weight:800}
#mbti-app .mbti-lead{color:var(--muted);font-size:16px;line-height:1.65;max-width:540px;margin:0 auto 24px}
#mbti-app .mbti-vers{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:26px}
#mbti-app .mbti-vers button{background:var(--soft);border:1.5px solid var(--line);color:var(--text);
  padding:10px 18px;border-radius:14px;font-size:15px;cursor:pointer;transition:.18s;line-height:1.3;font-weight:600;text-transform:none}
#mbti-app .mbti-vers button:hover{border-color:var(--accent)}
#mbti-app .mbti-vers button.mbti-on{background:linear-gradient(90deg,var(--accent),var(--accent2));border-color:transparent;color:#fff}
#mbti-app .mbti-vers button.mbti-vers-done{opacity:.45}
#mbti-app .mbti-intro-msg{color:var(--bad);font-size:14px;font-weight:600;margin-top:14px;min-height:18px}
#mbti-app .mbti-btn{appearance:none;border:0;cursor:pointer;font-size:16px;font-weight:700;padding:13px 26px;border-radius:12px;color:#fff;
  background:linear-gradient(90deg,var(--accent),var(--accent2));box-shadow:0 10px 22px -10px rgba(108,92,231,.8);transition:transform .15s,opacity .15s;text-transform:none}
#mbti-app .mbti-btn:hover{transform:translateY(-2px)}
#mbti-app .mbti-btn:active{transform:translateY(0)}
#mbti-app .mbti-btn.mbti-ghost{background:var(--soft);border:1.5px solid var(--line);box-shadow:none;color:var(--text)}
#mbti-app .mbti-btn.mbti-ghost:hover{border-color:var(--accent)}
#mbti-app .mbti-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;filter:grayscale(.4);box-shadow:none}
#mbti-app .mbti-qno{color:var(--accent);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-weight:700}
#mbti-app .mbti-qtext{font-size:21px;line-height:1.45;margin-bottom:22px;color:var(--text);font-weight:600}
#mbti-app .mbti-opts{display:flex;flex-direction:column;gap:11px}
#mbti-app .mbti-opt{text-align:left;background:var(--soft);border:1.5px solid var(--line);color:var(--text);padding:14px 16px;
  border-radius:12px;font-size:16px;font-weight:400;line-height:1.3;cursor:pointer;display:flex;align-items:center;gap:13px;transition:.16s;width:100%;text-transform:none}
#mbti-app .mbti-opt:hover{border-color:var(--accent);background:var(--soft2);transform:translateX(2px)}
#mbti-app .mbti-dot{width:20px;height:20px;border-radius:50%;border:2px solid #b9c0d6;flex:0 0 auto;transition:.16s}
#mbti-app .mbti-opt:hover .mbti-dot{border-color:var(--accent)}
#mbti-app .mbti-opt.mbti-sel{border-color:var(--accent);background:#efeaff}
#mbti-app .mbti-opt.mbti-sel .mbti-dot{border-color:var(--accent);background:radial-gradient(circle at center,var(--accent) 0 46%,#fff 47%)}
#mbti-app .mbti-nav{display:flex;justify-content:space-between;margin-top:20px;gap:12px}
#mbti-app .mbti-submit-zone{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line)}
#mbti-app .mbti-unanswered{font-size:14px;margin-bottom:12px}
#mbti-app .mbti-unanswered.mbti-ok{color:var(--good);font-weight:600}
#mbti-app .mbti-unanswered.mbti-warn{color:var(--bad)}
#mbti-app .mbti-miss-note{margin-bottom:8px}
#mbti-app .mbti-qnav{display:flex;flex-wrap:wrap;gap:6px}
#mbti-app .mbti-qcell{width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  background:var(--soft);border:1.5px solid var(--line);color:var(--muted);border-radius:8px;font-size:13px;font-weight:600;
  cursor:pointer;padding:0;line-height:1;transition:.12s}
#mbti-app .mbti-qcell:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-1px)}
#mbti-app .mbti-qcell-done{border-color:var(--good);color:var(--good);background:#eafaf1}
#mbti-app .mbti-qcell-cur{box-shadow:0 0 0 2px var(--accent);font-weight:700}
#mbti-app .mbti-submit-row{display:flex;justify-content:center}
#mbti-app .mbti-btn.mbti-submit{min-width:200px;background:linear-gradient(90deg,var(--good),#23c08a)}
#mbti-app .mbti-gate-title{font-size:21px;margin-bottom:6px;text-align:center;color:var(--text);font-weight:700}
#mbti-app .mbti-gate-sub{color:var(--muted);text-align:center;margin-bottom:16px;font-size:14px}
#mbti-app .mbti-guide{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px;
  line-height:1.7;font-size:15.5px;max-height:48vh;overflow:auto;color:#1f2433}
#mbti-app .mbti-guide img{max-width:100%;height:auto;border-radius:8px;margin:8px 0}
#mbti-app .mbti-guide a{color:var(--accent)}
#mbti-app .mbti-codebox{display:flex;gap:10px;margin-top:8px}
#mbti-app .mbti-codebox input{flex:1;background:#fff;border:1.5px solid var(--line);color:var(--text);border-radius:12px;
  padding:13px 15px;font-size:17px;letter-spacing:.04em;text-align:center;text-transform:none}
#mbti-app .mbti-codebox input:focus{outline:0;border-color:var(--accent)}
#mbti-app .mbti-msg{min-height:20px;font-size:14px;margin-top:10px;text-align:center}
#mbti-app .mbti-msg.mbti-err{color:var(--bad);font-weight:600}
#mbti-app .mbti-msg.mbti-ok{color:var(--good)}
/* TỪ KHOÁ = NÚT COPY */
#mbti-app .mbti-copy-btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:0;
  background:linear-gradient(90deg,var(--accent),var(--accent2));color:#fff;font-weight:700;font-size:15px;
  padding:8px 14px;border-radius:9px;margin:4px 0;vertical-align:middle;line-height:1.3}
#mbti-app .mbti-copy-btn:hover{filter:brightness(1.07)}
#mbti-app .mbti-copy-kw{white-space:normal}
#mbti-app .mbti-copy-ic{font-size:17px;line-height:1;opacity:.95}
/* kết quả */
#mbti-app .mbti-res-head{text-align:center;margin-bottom:16px}
#mbti-app .mbti-type-code{font-size:52px;font-weight:800;letter-spacing:.05em;
  background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
#mbti-app .mbti-type-name{font-size:21px;margin-top:2px;color:var(--text);font-weight:700}
#mbti-app .mbti-desc{color:var(--muted);line-height:1.7;font-size:15.5px;margin:12px 0 20px;text-align:center}
#mbti-app .mbti-info{display:grid;gap:11px;margin-bottom:20px}
#mbti-app .mbti-info .mbti-box{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:13px 16px}
#mbti-app .mbti-info .mbti-box h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin:0 0 5px}
#mbti-app .mbti-info .mbti-box p{font-size:15px;line-height:1.5;margin:0;color:var(--text)}
#mbti-app .mbti-axes{display:flex;flex-direction:column;gap:13px;margin-bottom:22px}
#mbti-app .mbti-axis .mbti-row{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:6px}
#mbti-app .mbti-axis .mbti-track{height:11px;background:var(--soft);border-radius:99px;position:relative;overflow:hidden}
#mbti-app .mbti-axis .mbti-fill{position:absolute;top:0;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
#mbti-app .mbti-strong{color:var(--text);font-weight:700}
#mbti-app .mbti-hide{display:none !important}
#mbti-app .mbti-center{text-align:center}
#mbti-app .mbti-footnote{color:var(--muted);font-size:12px;text-align:center;margin-top:16px}
#mbti-app .mbti-spin{color:var(--muted);text-align:center;padding:40px}
/* ===== Mobile ===== */
@media(max-width:560px){
  #mbti-app{margin:12px auto}
  #mbti-app .mbti-pad{padding:18px}
  #mbti-app .mbti-progress-wrap{padding:14px 18px 0}
  #mbti-app .mbti-h1{font-size:22px;line-height:1.3}
  #mbti-app .mbti-lead{font-size:14.5px;margin-bottom:20px}
  #mbti-app .mbti-badge{font-size:11px;letter-spacing:.1em;padding:5px 12px}
  #mbti-app .mbti-vers{gap:8px}
  #mbti-app .mbti-vers button{padding:9px 13px;font-size:14px}
  #mbti-app .mbti-qtext{font-size:18px;margin-bottom:18px}
  #mbti-app .mbti-opt{font-size:15px;padding:11px 13px;line-height:1.25;gap:11px}
  #mbti-app .mbti-dot{width:18px;height:18px}
  #mbti-app .mbti-btn{padding:12px 18px;font-size:15px}
  #mbti-app .mbti-nav{gap:8px}
  #mbti-app .mbti-nav .mbti-btn{padding:11px 12px;font-size:14px;flex:1}
  #mbti-app .mbti-qcell{width:32px;height:32px;font-size:12px}
  #mbti-app .mbti-codebox{flex-direction:column}
  #mbti-app .mbti-codebox input{font-size:16px;letter-spacing:.08em}
  #mbti-app .mbti-btn.mbti-submit{width:100%;min-width:0}
  #mbti-app .mbti-type-code{font-size:44px}
  #mbti-app .mbti-type-name{font-size:19px}
  #mbti-app .mbti-guide{padding:16px;font-size:15px;max-height:52vh}
}