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auto;width:100%}.session-group{display:flex;align-items:center;gap:10px}.session-label{font-family:var(--mono);font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.learn-pills{display:inline-flex;gap:6px}.learn-pill{background:var(--bg-2);border:1px solid var(--border);color:var(--text-muted);font-family:var(--mono);font-size:11px;text-transform:lowercase;padding:6px 11px;border-radius:999px;cursor:pointer;transition:color .15s,border-color .15s,background .15s}.learn-pill:hover{color:var(--text);border-color:var(--accent)}.learn-pill.active{color:var(--accent);border-color:var(--accent);background:#7eb6ff14}.learn-pill:disabled{opacity:.35;cursor:not-allowed}.learn-pill:disabled:hover{color:var(--text-muted);border-color:var(--border)}.lang-pair-row{display:flex;align-items:flex-start;gap:10px;margin:16px 0 0}.lang-pair-group{flex:1;display:flex;flex-direction:column;gap:6px}.lang-pair-label{font-family:var(--mono);font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;line-height:1}.lang-pair-select{background:var(--bg-2);border:1px solid var(--border);color:var(--text);font-family:var(--mono);font-size:13px;padding:7px 10px;border-radius:8px;cursor:pointer;appearance:auto;width:100%;height:36px;box-sizing:border-box}.lang-pair-select:focus{border-color:var(--accent);outline:none}.lang-pair-arrow{color:var(--text-muted);font-size:16px;margin-top:20px;flex-shrink:0}.dir-group{flex:1;min-width:220px;max-width:360px;justify-content:flex-end}.dir-end{white-space:nowrap}.dir-slider{flex:1;max-width:180px;-webkit-appearance:none;appearance:none;height:4px;background:var(--bg-3);border-radius:2px;outline:none;cursor:pointer}.dir-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}.dir-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--accent);cursor:pointer;border:none}@media (max-width: 480px){.session-row{padding:4px 18px 10px;gap:10px 14px}.dir-group{width:100%;max-width:none;justify-content:space-between}.dir-slider{max-width:none}.prompt{font-size:26px}input[type=text]{font-size:20px}.card{padding:22px 20px}}@media (max-width: 540px){header{padding:14px 14px 6px;gap:6px;position:sticky;top:0;background:var(--bg);z-index:50}.header-actions{gap:6px}header h1{font-size:18px}header .brand .sub{display:none}.level-pill{padding:6px 10px;gap:4px}.level-pill .level-pill-label{display:none}.icon-btn{width:34px;height:34px;font-size:13px}.user-btn{padding:6px 10px 6px 8px}.user-btn .user-btn-name{max-width:80px}.menu-btn{display:inline-flex;font-size:16px}.header-overflow{display:none;position:absolute;top:calc(100% - 4px);left:12px;background:var(--bg-2);border:1px solid var(--border);border-radius:14px;padding:10px;box-shadow:0 16px 40px #00000080;z-index:60;flex-direction:column;align-items:stretch;gap:8px;width:200px}.header-overflow.open{display:flex}.header-overflow .overflow-label{display:inline;margin-right:auto;color:var(--text-muted);text-transform:lowercase;letter-spacing:.04em;font-size:11px}.header-overflow .lang-dropdown{width:100%}.header-overflow .lang-dropdown-btn{width:100%;height:38px;padding:0 14px}.header-overflow .lang-dropdown-menu{position:static;width:100%;min-width:0;margin-top:4px;box-shadow:none;background:var(--bg-3)}.header-overflow #themeToggleBtn{width:100%;height:38px;border-radius:10px;font-size:14px;justify-content:flex-start;padding:0 14px;gap:12px;color:var(--text)}.header-overflow .icon-glyph{font-family:var(--mono);font-size:14px;color:var(--text-muted)}}@media (max-width: 380px){.user-btn .user-btn-name{display:none}.user-btn{padding:6px 8px}}