:root {
  --s234-primary: #0d5b55;
  --s234-primary-2: #11786f;
  --s234-soft: #e9f6f3;
  --s234-bg: #f4f8f7;
  --s234-card: #ffffff;
  --s234-text: #16312f;
  --s234-muted: #667b78;
  --s234-line: #d8e5e2;
  --s234-success: #18794e;
  --s234-success-soft: #e8f7ef;
  --s234-danger: #b42318;
  --s234-danger-soft: #fff0ee;
  --s234-warning: #9a6700;
  --s234-shadow: 0 18px 60px rgba(10, 49, 45, .16);
}
body.s234-open { overflow: hidden; }
.s234-profile-gate,
.s234-app { position: fixed; inset: 0; z-index: 100000; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--s234-text); }
.s234-profile-gate { display:grid; place-items:center; padding:24px; background:rgba(6,32,30,.72); backdrop-filter: blur(12px); }
.s234-profile-card { width:min(560px,100%); padding:36px; border:1px solid rgba(255,255,255,.7); border-radius:28px; background:linear-gradient(145deg,#fff,#f2faf8); box-shadow:var(--s234-shadow); text-align:center; }
.s234-logo { width:68px; height:68px; margin:0 auto 18px; display:grid; place-items:center; border-radius:22px; background:linear-gradient(135deg,var(--s234-primary),var(--s234-primary-2)); color:#fff; font-size:1.45rem; font-weight:900; letter-spacing:.05em; }
.s234-kicker { display:block; margin-bottom:8px; color:var(--s234-primary-2); font-size:.78rem; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.s234-profile-card h1 { margin:0; font-size:clamp(1.7rem,4vw,2.45rem); }
.s234-profile-card p { color:var(--s234-muted); line-height:1.65; }
.s234-profile-entry { display:grid; grid-template-columns:1fr auto; gap:10px; margin-top:22px; }
.s234-profile-entry input { min-width:0; }
.s234-profile-list { display:grid; gap:9px; margin-top:18px; }
.s234-profile-list button { display:flex; justify-content:space-between; gap:16px; align-items:center; padding:14px 16px; text-align:left; }
.s234-profile-list small { color:var(--s234-muted); }
.s234-link { margin-top:12px; border:0!important; background:transparent!important; color:var(--s234-primary)!important; box-shadow:none!important; }
.s234-app { background:var(--s234-bg); overflow:auto; }
.s234-shell { min-height:100%; }
.s234-header { position:sticky; top:0; z-index:20; display:flex; justify-content:space-between; gap:20px; align-items:center; padding:18px clamp(18px,4vw,54px); border-bottom:1px solid var(--s234-line); background:rgba(255,255,255,.94); backdrop-filter:blur(16px); }
.s234-header h1 { margin:0; font-size:clamp(1.25rem,2.6vw,2rem); }
.s234-header-actions { display:flex; align-items:center; gap:9px; }
.s234-header-actions button:last-child { width:42px; height:42px; padding:0; font-size:1.5rem; }
.s234-profile-chip { padding:9px 13px; border-radius:999px; background:var(--s234-soft); color:var(--s234-primary); font-weight:800; }
.s234-nav { position:sticky; top:79px; z-index:19; display:flex; gap:8px; padding:12px clamp(18px,4vw,54px); overflow:auto; border-bottom:1px solid var(--s234-line); background:rgba(244,248,247,.96); }
.s234-nav button { white-space:nowrap; border-color:transparent; background:transparent; box-shadow:none; }
.s234-nav button.active { background:var(--s234-primary); color:#fff; }
.s234-main { width:min(1240px,calc(100% - 32px)); margin:0 auto; padding:28px 0 64px; }
.s234-app button,
.s234-profile-gate button,
.s234-app input,
.s234-app textarea,
.s234-app select,
.s234-profile-gate input { font:inherit; }
.s234-app button,
.s234-profile-gate button,
.s234-file { min-height:42px; padding:10px 15px; border:1px solid var(--s234-line); border-radius:12px; background:#fff; color:var(--s234-text); font-weight:800; cursor:pointer; box-shadow:0 4px 14px rgba(10,49,45,.05); }
.s234-app button:hover,
.s234-profile-gate button:hover { border-color:var(--s234-primary); transform:translateY(-1px); }
.s234-app button:disabled,
.s234-profile-gate button:disabled { opacity:.48; cursor:not-allowed; transform:none; }
.s234-primary { border-color:var(--s234-primary)!important; background:var(--s234-primary)!important; color:#fff!important; }
.s234-app input,
.s234-app textarea,
.s234-app select,
.s234-profile-gate input { width:100%; min-height:46px; padding:11px 13px; border:1px solid var(--s234-line); border-radius:12px; background:#fff; color:var(--s234-text); outline:none; }
.s234-app textarea { min-height:120px; resize:vertical; line-height:1.55; }
.s234-app input:focus,
.s234-app textarea:focus,
.s234-app select:focus,
.s234-profile-gate input:focus { border-color:var(--s234-primary); box-shadow:0 0 0 3px rgba(13,91,85,.12); }
.s234-app label { display:grid; gap:7px; color:var(--s234-muted); font-weight:750; }
.s234-hero,
.s234-resume { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:28px; align-items:center; padding:30px; border:1px solid var(--s234-line); border-radius:26px; background:linear-gradient(135deg,#fff 0%,#eaf7f4 100%); box-shadow:0 12px 34px rgba(10,49,45,.08); }
.s234-hero.compact { margin-bottom:20px; }
.s234-hero h2,
.s234-resume h2 { margin:0 0 10px; font-size:clamp(1.55rem,3vw,2.45rem); }
.s234-hero p,
.s234-resume p { max-width:760px; margin:0; color:var(--s234-muted); line-height:1.65; }
.s234-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:20px; }
.s234-plan-time { width:150px; aspect-ratio:1; display:grid; place-items:center; align-content:center; border-radius:50%; background:#fff; box-shadow:inset 0 0 0 10px var(--s234-soft),0 10px 30px rgba(13,91,85,.12); text-align:center; }
.s234-plan-time strong { font-size:2.5rem; color:var(--s234-primary); }
.s234-plan-time span { color:var(--s234-muted); font-size:.82rem; }
.s234-resume { margin-bottom:16px; padding:20px 24px; background:linear-gradient(135deg,#fff7db,#fff); }
.s234-resume span { color:var(--s234-warning); font-weight:900; text-transform:uppercase; letter-spacing:.07em; font-size:.74rem; }
.s234-stat-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; margin:18px 0; }
.s234-stat-grid article { padding:20px; border:1px solid var(--s234-line); border-radius:18px; background:var(--s234-card); }
.s234-stat-grid span,
.s234-stat-grid small { display:block; color:var(--s234-muted); }
.s234-stat-grid strong { display:block; margin:8px 0 4px; font-size:1.8rem; color:var(--s234-primary); }
.s234-panel { margin-top:18px; padding:24px; border:1px solid var(--s234-line); border-radius:22px; background:var(--s234-card); box-shadow:0 8px 24px rgba(10,49,45,.05); }
.s234-panel h3 { margin:0 0 12px; font-size:1.25rem; }
.s234-panel > p { color:var(--s234-muted); line-height:1.55; }
.s234-panel-head { display:flex; justify-content:space-between; gap:18px; align-items:center; margin-bottom:16px; }
.s234-panel-head h3 { margin:0; }
.s234-panel-head p { margin:5px 0 0; color:var(--s234-muted); }
.s234-prescription-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; }
.s234-prescription-grid article { display:flex; gap:14px; padding:18px; border:1px solid var(--s234-line); border-radius:16px; background:#fbfdfc; }
.s234-prescription-grid > article > span { width:34px; height:34px; display:grid; place-items:center; flex:0 0 auto; border-radius:50%; background:var(--s234-primary); color:#fff; font-weight:900; }
.s234-prescription-grid strong,
.s234-prescription-grid b { display:block; }
.s234-prescription-grid b { margin-top:5px; color:var(--s234-primary); }
.s234-prescription-grid p { margin:7px 0 0; color:var(--s234-muted); line-height:1.45; }
.s234-status-strip { display:flex; gap:8px; margin-top:18px; overflow:auto; }
.s234-status-strip button { min-width:112px; display:grid; gap:3px; text-align:center; }
.s234-status-strip strong { font-size:1.3rem; color:var(--s234-primary); }
.s234-status-strip span { color:var(--s234-muted); font-size:.76rem; }
.s234-verb-row { display:flex; gap:12px; overflow:auto; padding-bottom:4px; }
.s234-mini-verb { min-width:230px; display:grid; grid-template-columns:78px 1fr; gap:12px; align-items:center; padding:10px; border:1px solid var(--s234-line); border-radius:16px; }
.s234-mini-verb strong,
.s234-mini-verb span,
.s234-mini-verb small { display:block; }
.s234-mini-verb span,
.s234-mini-verb small { color:var(--s234-muted); }
.s234-image { margin:0; overflow:hidden; border-radius:14px; background:var(--s234-soft); }
.s234-image img { width:100%; height:100%; display:block; object-fit:cover; }
.s234-thumb { width:78px; height:68px; }
.s234-rewards { display:flex; flex-wrap:wrap; gap:10px; }
.s234-rewards > span { display:grid; grid-template-columns:auto 1fr; gap:2px 8px; align-items:center; padding:11px 13px; border-radius:14px; background:#fff7d6; color:#7b5900; }
.s234-rewards small { grid-column:2; opacity:.7; }
.s234-empty { width:100%; padding:24px; border:1px dashed var(--s234-line); border-radius:14px; color:var(--s234-muted); text-align:center; }
.s234-ladder { display:grid; gap:10px; }
.s234-ladder article { display:flex; gap:14px; align-items:flex-start; padding:14px; border:1px solid var(--s234-line); border-radius:14px; }
.s234-ladder article > span { width:34px; height:34px; display:grid; place-items:center; flex:0 0 auto; border-radius:11px; background:var(--s234-soft); color:var(--s234-primary); font-weight:900; }
.s234-ladder strong { display:block; }
.s234-ladder p { margin:4px 0 0; color:var(--s234-muted); }
.s234-check-list { display:grid; gap:9px; padding:0; list-style:none; }
.s234-check-list li { padding:12px 14px; border-radius:12px; background:#f6faf9; }
.s234-check-list li::before { content:'✓'; margin-right:9px; color:var(--s234-success); font-weight:900; }
.s234-check-list li.bad::before { content:'×'; color:var(--s234-danger); }
.s234-process,
.s234-test-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; }
.s234-process article,
.s234-test-grid article { padding:18px; border:1px solid var(--s234-line); border-radius:16px; }
.s234-process article > span { width:32px; height:32px; display:grid; place-items:center; border-radius:50%; background:var(--s234-soft); color:var(--s234-primary); font-weight:900; }
.s234-process strong,
.s234-test-grid strong,
.s234-test-grid b { display:block; margin-top:10px; }
.s234-process p,
.s234-test-grid p { color:var(--s234-muted); line-height:1.45; }
.s234-test-grid span { color:var(--s234-primary); font-size:.78rem; font-weight:900; text-transform:uppercase; }
.s234-test-grid b { color:var(--s234-primary); }
.s234-verb-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; }
.s234-verb-card { display:grid; grid-template-columns:120px 1fr; gap:14px; padding:12px; border:1px solid var(--s234-line); border-radius:18px; cursor:pointer; }
.s234-verb-card:hover { border-color:var(--s234-primary); transform:translateY(-2px); box-shadow:0 10px 24px rgba(10,49,45,.08); }
.s234-card-image { min-height:145px; }
.s234-verb-card h3 { margin:7px 0; }
.s234-verb-card h3 small { display:block; margin-top:3px; color:var(--s234-muted); font-weight:650; }
.s234-verb-card p { margin:0; color:var(--s234-muted); font-size:.85rem; }
.s234-verb-card footer { display:flex; justify-content:space-between; gap:10px; margin-top:8px; }
.s234-verb-card footer small { color:var(--s234-muted); text-align:right; }
.s234-status { display:inline-block; padding:4px 8px; border-radius:999px; background:var(--s234-soft); color:var(--s234-primary); font-size:.69rem; font-weight:900; }
.s234-status.weakening,
.s234-status.relearn { background:var(--s234-danger-soft); color:var(--s234-danger); }
.s234-status.strong { background:var(--s234-success-soft); color:var(--s234-success); }
.s234-mastery { height:7px; margin-top:10px; overflow:hidden; border-radius:999px; background:#edf3f1; }
.s234-mastery i { display:block; height:100%; background:linear-gradient(90deg,var(--s234-primary),#42a394); }
.s234-status-bars,
.s234-skill-bars { display:grid; gap:11px; }
.s234-status-bars button,
.s234-skill-bars > div { display:grid; grid-template-columns:180px 1fr 54px; gap:12px; align-items:center; min-height:42px; padding:8px 10px; border:0; box-shadow:none; text-align:left; }
.s234-status-bars button > div,
.s234-skill-bars > div > div { height:10px; overflow:hidden; border-radius:999px; background:#edf3f1; }
.s234-status-bars i,
.s234-skill-bars i { display:block; height:100%; background:linear-gradient(90deg,var(--s234-primary),#48a899); }
.s234-note { margin-top:18px!important; padding:13px 15px; border-radius:12px; background:var(--s234-soft); }
.s234-event-list { display:grid; gap:9px; }
.s234-event-list article { display:flex; gap:12px; align-items:center; padding:11px 13px; border-bottom:1px solid var(--s234-line); }
.s234-event-list article > span { width:32px; height:32px; display:grid; place-items:center; border-radius:50%; background:var(--s234-soft); color:var(--s234-primary); font-weight:900; }
.s234-event-list strong,
.s234-event-list small { display:block; }
.s234-event-list small { color:var(--s234-muted); margin-top:3px; }
.s234-filter-row { display:flex; gap:8px; margin:12px 0 18px; overflow:auto; }
.s234-filter-row button { white-space:nowrap; }
.s234-filter-row button.active { background:var(--s234-primary); color:#fff; }
.s234-settings-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.s234-settings-grid .s234-panel { margin:0; }
.s234-settings-grid label { margin-top:13px; }
.s234-toggle { display:flex!important; grid-template-columns:auto 1fr; align-items:center; }
.s234-toggle input { width:20px; min-height:20px; }
.s234-file { display:inline-flex!important; align-items:center; }
.s234-file input { display:none; }
.s234-quality { display:flex; gap:12px; align-items:center; padding:14px; border-radius:14px; background:var(--s234-soft); }
.s234-quality strong { font-size:2rem; color:var(--s234-primary); }
.s234-success { color:var(--s234-success)!important; }
.s234-session-head { position:sticky; top:144px; z-index:10; display:grid; grid-template-columns:auto 1fr auto; gap:14px; align-items:center; margin-bottom:14px; padding:13px 16px; border:1px solid var(--s234-line); border-radius:16px; background:rgba(255,255,255,.95); backdrop-filter:blur(10px); }
.s234-session-head > div > span { display:block; margin-bottom:6px; color:var(--s234-muted); font-size:.8rem; }
.s234-session-head > div > div { height:8px; overflow:hidden; border-radius:999px; background:#edf3f1; }
.s234-session-head i { display:block; height:100%; background:linear-gradient(90deg,var(--s234-primary),#4cad9d); }
.s234-question { padding:clamp(20px,4vw,42px); border:1px solid var(--s234-line); border-radius:24px; background:#fff; box-shadow:0 14px 40px rgba(10,49,45,.08); }
.s234-question h2 { margin:0 0 18px; font-size:clamp(1.55rem,3vw,2.35rem); }
.s234-question > label { margin-top:15px; }
.s234-question-visual,
.s234-teach-grid { display:grid; grid-template-columns:minmax(260px,46%) 1fr; gap:28px; align-items:start; }
.s234-main-image { min-height:420px; }
.s234-test-image { width:min(480px,100%); height:300px; margin:0 auto 20px; }
.s234-example { padding:15px; border-left:4px solid var(--s234-primary); border-radius:0 12px 12px 0; background:var(--s234-soft); }
.s234-example strong,
.s234-example span { display:block; }
.s234-example span { margin-top:5px; color:var(--s234-muted); }
.s234-encoding { display:grid; gap:9px; margin:18px 0; }
.s234-encoding label,
.s234-self-check label { display:flex; grid-template-columns:auto 1fr; align-items:flex-start; gap:10px; padding:11px 12px; border:1px solid var(--s234-line); border-radius:12px; }
.s234-encoding input,
.s234-self-check input { width:20px; min-height:20px; }
.s234-input-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:13px; }
.s234-input-grid.three { grid-template-columns:repeat(3,minmax(0,1fr)); }
.s234-transform { display:grid; gap:12px; }
.s234-transform p { display:grid; grid-template-columns:auto auto auto 1fr; gap:8px; align-items:center; padding:14px; border-radius:14px; background:#f7faf9; }
.s234-prompt { padding:17px; border-radius:14px; background:var(--s234-soft); font-size:1.15rem; }
.s234-audio-box { display:flex; gap:12px; align-items:center; margin:16px 0; padding:16px; border:1px solid var(--s234-line); border-radius:14px; background:#f8fbfa; }
.s234-audio-box small { color:var(--s234-muted); }
.s234-option-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; margin:16px 0; }
.s234-option-list > button,
.s234-option-list > label { display:flex; align-items:flex-start; gap:10px; padding:14px; border:1px solid var(--s234-line); border-radius:14px; background:#fff; text-align:left; }
.s234-option-list > button strong,
.s234-option-list > button small { display:block; }
.s234-option-list small { margin-top:3px; color:var(--s234-muted); }
.s234-option-list input { width:20px; min-height:20px; }
.s234-confidence { display:flex; flex-wrap:wrap; gap:10px; margin:18px 0; padding:14px; border:1px solid var(--s234-line); border-radius:14px; }
.s234-confidence legend { padding:0 6px; color:var(--s234-muted); font-weight:800; }
.s234-confidence label { display:flex; grid-template-columns:auto 1fr; align-items:center; }
.s234-confidence input { width:18px; min-height:18px; }
.s234-hint { margin-top:12px; }
.s234-hint-area { min-height:0; margin-top:12px; padding:0; color:var(--s234-warning); }
.s234-hint-area:not(:empty) { padding:12px 14px; border-radius:12px; background:#fff7dc; }
.s234-feedback { margin-top:20px; padding:18px; border-radius:16px; }
.s234-feedback.success { background:var(--s234-success-soft); color:var(--s234-success); }
.s234-feedback.error { background:var(--s234-danger-soft); color:var(--s234-danger); }
.s234-feedback p { line-height:1.55; }
.s234-repair-note { margin-bottom:18px; padding:15px; border-radius:14px; background:#fff7dc; color:#765600; }
.s234-test-result { display:grid; place-items:center; padding:38px; border-radius:24px; text-align:center; }
.s234-test-result.passed { background:var(--s234-success-soft); color:var(--s234-success); }
.s234-test-result.failed { background:var(--s234-danger-soft); color:var(--s234-danger); }
.s234-test-result > span { width:58px; height:58px; display:grid; place-items:center; border:3px solid currentColor; border-radius:50%; font-size:2rem; font-weight:900; }
.s234-test-result h2 { margin:12px 0 0; font-size:3rem; }
.s234-test-result p { max-width:700px; line-height:1.6; }
.s234-test-history { display:grid; gap:9px; }
.s234-test-history article { display:grid; grid-template-columns:1fr auto auto; gap:14px; align-items:center; padding:12px; border-bottom:1px solid var(--s234-line); }
.s234-test-history strong,
.s234-test-history small { display:block; }
.s234-test-history small { color:var(--s234-muted); margin-top:3px; }
.s234-test-history b { font-size:1.25rem; }
.s234-test-history .pass { color:var(--s234-success); }
.s234-test-history .fail { color:var(--s234-danger); }
.s234-dialog { width:min(900px,calc(100% - 32px)); max-height:90vh; padding:28px; border:0; border-radius:24px; color:var(--s234-text); box-shadow:var(--s234-shadow); }
.s234-dialog::backdrop { background:rgba(6,32,30,.68); backdrop-filter:blur(8px); }
.s234-dialog-close { position:absolute; top:14px; right:14px; width:40px; height:40px; padding:0!important; font-size:1.4rem; }
.s234-dialog-grid { display:grid; grid-template-columns:300px 1fr; gap:24px; }
.s234-dialog-image { min-height:360px; }
.s234-dialog h2 small { display:block; margin-top:4px; color:var(--s234-muted); }
.s234-dialog dl { display:grid; grid-template-columns:auto 1fr; gap:7px 14px; }
.s234-dialog dt { color:var(--s234-muted); }
.s234-dialog dd { margin:0; font-weight:750; }
.s234-toast { position:fixed; left:50%; bottom:24px; z-index:110000; max-width:min(620px,calc(100% - 32px)); padding:14px 18px; border-radius:14px; background:#16312f; color:#fff; box-shadow:var(--s234-shadow); transform:translate(-50%,20px); opacity:0; transition:.22s ease; }
.s234-toast.show { transform:translate(-50%,0); opacity:1; }
@media (max-width: 980px) {
  .s234-stat-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .s234-prescription-grid,
  .s234-process,
  .s234-test-grid,
  .s234-verb-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .s234-settings-grid { grid-template-columns:1fr; }
}
@media (max-width: 720px) {
  .s234-header { align-items:flex-start; }
  .s234-header-actions { flex-wrap:wrap; justify-content:flex-end; }
  .s234-profile-chip { display:none; }
  .s234-nav { top:88px; }
  .s234-main { width:min(100% - 20px,1240px); padding-top:16px; }
  .s234-hero,
  .s234-resume { grid-template-columns:1fr; padding:22px; }
  .s234-plan-time { width:125px; justify-self:center; }
  .s234-stat-grid,
  .s234-prescription-grid,
  .s234-process,
  .s234-test-grid,
  .s234-verb-grid { grid-template-columns:1fr; }
  .s234-question-visual,
  .s234-teach-grid,
  .s234-dialog-grid { grid-template-columns:1fr; }
  .s234-main-image { min-height:280px; }
  .s234-input-grid,
  .s234-input-grid.three,
  .s234-option-list { grid-template-columns:1fr; }
  .s234-session-head { top:145px; grid-template-columns:auto 1fr; }
  .s234-session-head > strong { grid-column:1 / -1; }
  .s234-status-bars button,
  .s234-skill-bars > div { grid-template-columns:115px 1fr 45px; }
  .s234-verb-card { grid-template-columns:100px 1fr; }
  .s234-profile-entry { grid-template-columns:1fr; }
}