:root {
  --black:#000;--white:#fff;--green:#00CA55;--light-grey:#EAE8E8;
  --mid-grey:#726E6B;--orange:#FF6A3B;--pink:#F256B6;--yellow:#FEF14D;
  --bg:#F5F5F3;--border:#DDDBD9;
  --fp:'Noto Sans JP',Arial,sans-serif;--fm:'IBM Plex Mono','Courier New',monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{height:100%}
body{font-family:var(--fp);background:var(--bg);color:var(--black);min-height:100vh}
.screen{display:none;min-height:100vh}
.screen.active{display:block}

.topbar{background:var(--white);border-bottom:1px solid var(--border);padding:0 40px;display:flex;align-items:center;justify-content:space-between;height:52px}
.topbar-logo{display:flex;align-items:center;cursor:pointer;opacity:1;transition:opacity .15s}.topbar-logo:hover{opacity:.7}
.topbar-svg{height:22px;width:auto;display:block}
.topbar-right{display:flex;align-items:center;gap:16px}
.topbar-label{font-family:var(--fm);font-size:11px;color:var(--mid-grey);letter-spacing:.08em;text-transform:uppercase}
.lang-toggle{display:flex;align-items:center;gap:2px}
.lang-btn{font-family:var(--fm);font-size:11px;letter-spacing:.08em;text-transform:uppercase;background:none;border:none;cursor:pointer;color:var(--mid-grey);padding:4px 7px;border-radius:2px}
.lang-btn.active{color:var(--black);font-weight:700}
.lang-btn:hover{color:var(--black)}
.lang-sep{font-family:var(--fm);font-size:11px;color:var(--border);user-select:none}

.page{max-width:860px;margin:0 auto;padding:40px 40px 80px}
.eyebrow{font-family:var(--fm);font-size:11px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.main-heading{font-size:clamp(28px,5vw,48px);font-weight:700;line-height:1.08;color:var(--black);margin-bottom:16px}
.intro-desc{font-size:16px;color:var(--black);margin-bottom:40px;line-height:1.7;max-width:600px;border-left:3px solid var(--green);padding-left:20px}
.divider{height:1px;background:var(--border);margin:32px 0}

.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:4px;overflow:hidden;margin-bottom:40px}
.stat-cell{background:var(--white);padding:20px 24px}
.stat-number{font-family:var(--fm);font-size:32px;font-weight:700;color:var(--black);line-height:1;margin-bottom:6px}
.stat-label{font-family:var(--fm);font-size:10px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase}

.levels-section-label{font-family:var(--fm);font-size:11px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}
.levels-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:40px}
.level-card{background:var(--white);border:1px solid var(--border);border-radius:4px;padding:24px 24px 20px}
.level-card.lc1{border-top:3px solid var(--yellow)}
.level-card.lc2{border-top:3px solid var(--orange)}
.level-card.lc3{border-top:3px solid var(--green)}
.level-card.lc4{border-top:3px solid var(--pink)}
.lc-num{font-family:var(--fm);font-size:10px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.lc-name{font-size:20px;font-weight:700;color:var(--black);margin-bottom:8px}
.lc-desc{font-size:13px;color:var(--mid-grey);line-height:1.5}

/* These button classes can be applied to <a> elements too (e.g. on the level
   pages), so explicitly drop the default anchor underline. */
.btn-primary,.btn-green,.btn-ghost{text-decoration:none}
.btn-primary{background:var(--black);color:var(--white);border:none;font-family:var(--fm);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:14px 32px;cursor:pointer;border-radius:3px;transition:background .15s;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{background:#222}
.btn-green{background:var(--green);color:var(--black);border:none;font-family:var(--fm);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:13px 28px;cursor:pointer;border-radius:3px;transition:background .15s;display:inline-flex;align-items:center;gap:8px}
.btn-green:hover{background:#00b34a}
.btn-ghost{background:var(--white);color:var(--black);border:1px solid var(--border);font-family:var(--fm);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:13px 28px;cursor:pointer;border-radius:3px;transition:background .15s;display:inline-flex;align-items:center;gap:8px}
.btn-ghost:hover{background:var(--light-grey)}
.actions{display:flex;gap:10px;flex-wrap:wrap}

.progress-wrap{background:var(--white);border-bottom:1px solid var(--border);padding:14px 40px;display:flex;align-items:center;gap:20px}
.progress-track{flex:1;height:2px;background:var(--border);border-radius:2px}
.progress-fill{height:2px;background:var(--green);border-radius:2px;transition:width .4s ease}
.progress-label{font-family:var(--fm);font-size:11px;color:var(--mid-grey);letter-spacing:.08em;white-space:nowrap}
.progress-label span{color:var(--black);font-weight:700}

.q-card{background:var(--white);border:1px solid var(--border);border-top:3px solid var(--green);border-radius:4px;padding:32px;margin-bottom:16px}
.q-number{font-family:var(--fm);font-size:10px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}
.q-text{font-size:clamp(16px,2.5vw,20px);font-weight:700;line-height:1.4;color:var(--black)}

.answer-grid{display:flex;flex-direction:column;gap:8px}
.answer-card{background:var(--white);border:1px solid var(--border);border-radius:4px;padding:16px 20px;cursor:pointer;transition:border-color .15s,background .15s;display:flex;align-items:center;gap:14px}
.answer-card:hover{border-color:var(--black)}
.answer-card.flash{border-color:var(--green);background:#f0fff7}
.answer-letter{font-family:var(--fm);font-size:11px;font-weight:700;color:var(--mid-grey);background:var(--bg);border:1px solid var(--border);width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:3px;flex-shrink:0;transition:background .15s,color .15s,border-color .15s}
.answer-card.flash .answer-letter{background:var(--green);color:var(--black);border-color:var(--green)}
.answer-card[data-letter="A"] .answer-letter{background:var(--green);color:var(--black);border-color:var(--green)}
.answer-card[data-letter="B"] .answer-letter{background:var(--orange);color:var(--black);border-color:var(--orange)}
.answer-card[data-letter="C"] .answer-letter{background:var(--pink);color:var(--black);border-color:var(--pink)}
.answer-card[data-letter="D"] .answer-letter{background:var(--yellow);color:var(--black);border-color:var(--yellow)}
.answer-text{font-size:14px;line-height:1.5;color:var(--black)}

.result-score-row{display:flex;align-items:baseline;gap:16px;margin-bottom:4px;flex-wrap:wrap}
.result-score-big{font-family:var(--fm);font-size:clamp(52px,10vw,80px);font-weight:700;line-height:1;color:var(--black)}
.result-score-denom{font-family:var(--fm);font-size:20px;color:var(--mid-grey)}
.result-level-pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border);background:var(--white);border-radius:100px;padding:5px 14px 5px 10px;font-family:var(--fm);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--black);margin-bottom:20px}
.result-level-pill .dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.result-cards{display:flex;flex-direction:column;gap:12px}
.result-card{background:var(--white);border:1px solid var(--border);border-radius:4px;padding:24px 28px}
.result-card-label{font-family:var(--fm);font-size:10px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px;display:flex;align-items:center;gap:7px}
.result-card-label .dot{width:6px;height:6px;border-radius:50%}
.result-card-text{font-size:14px;line-height:1.75;color:var(--black)}

.q8-title{font-size:17px;font-weight:700;color:var(--black);margin-bottom:6px}
.q8-sub{font-size:13px;color:var(--mid-grey);margin-bottom:20px;line-height:1.5}
.q8-grid{display:flex;flex-direction:column;gap:8px;margin-bottom:32px}
.q8-option{background:var(--white);border:1px solid var(--border);border-radius:4px;padding:13px 18px;cursor:pointer;transition:border-color .15s,background .15s;display:flex;align-items:center;gap:12px;font-size:14px;color:var(--black);line-height:1.4;user-select:none}
.q8-option:hover{border-color:var(--black)}
.q8-option.selected{border-color:var(--green);background:#f0fff7}
.q8-box{width:18px;height:18px;border:1px solid var(--border);border-radius:2px;flex-shrink:0;background:var(--bg);display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s;font-size:11px;font-weight:700;color:transparent;font-family:var(--fm)}
.q8-option.selected .q8-box{background:var(--green);border-color:var(--green);color:var(--black)}

.share-note{font-family:var(--fm);font-size:11px;color:var(--mid-grey);margin-top:10px;letter-spacing:.04em}

.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:100;align-items:center;justify-content:center;padding:24px}
.modal-overlay.active{display:flex}
.modal{background:var(--white);border-radius:4px;border:1px solid var(--border);max-width:460px;width:100%;padding:36px}
.modal-eyebrow{font-family:var(--fm);font-size:10px;color:var(--mid-grey);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.modal-h2{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--black)}
.modal-desc{font-size:13px;color:var(--mid-grey);margin-bottom:24px;line-height:1.6}
.modal-label{display:block;font-family:var(--fm);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--mid-grey);margin-bottom:6px}
.modal input{width:100%;border:1px solid var(--border);border-radius:3px;padding:11px 14px;font-family:var(--fp);font-size:14px;color:var(--black);background:var(--bg);margin-bottom:16px;outline:none;transition:border-color .15s}
.modal input:focus{border-color:var(--green);background:var(--white)}
.modal-actions{display:flex;gap:10px;margin-top:8px}
.btn-modal-send{background:var(--green);color:var(--black);border:none;font-family:var(--fm);font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:12px 24px;cursor:pointer;border-radius:3px;flex:1;transition:background .15s}
.btn-modal-send:hover{background:#00b34a}
.btn-modal-send:disabled{opacity:.5;cursor:default}
.btn-modal-cancel{background:transparent;color:var(--mid-grey);border:1px solid var(--border);font-family:var(--fm);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:12px 20px;cursor:pointer;border-radius:3px;transition:background .15s}
.btn-modal-cancel:hover{background:var(--light-grey)}
.modal-error{font-family:var(--fm);font-size:11px;color:var(--orange);margin-bottom:12px;min-height:14px;letter-spacing:.02em}

.thanks-pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border);background:var(--white);border-radius:100px;padding:5px 14px 5px 10px;font-family:var(--fm);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--black);margin-bottom:20px}
.thanks-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--green);flex-shrink:0}

.result-card-text a{color:var(--green);text-decoration:underline}
.result-card-text a:hover{opacity:.75}
.result-card-text ul{margin:10px 0 10px 18px;display:flex;flex-direction:column;gap:6px;list-style:disc}
.result-card-text li{font-size:14px;line-height:1.5}