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span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.theme-empty{color:var(--muted);text-align:center;margin:20px 4px;font-size:.74rem}.theme-filter-actions{grid-template-columns:1fr 1fr;gap:7px;display:grid}.theme-filter-actions button{border:1px solid var(--forest-strong);min-height:38px;color:var(--forest-strong);background:0 0;font-weight:750}.theme-filter-actions button:last-child{color:var(--paper-strong);background:var(--forest-strong)}.theme-filter-actions button:disabled{opacity:.4}.settings-layout{width:min(640px,100% - 32px);min-height:100vh;margin:0 auto;padding:120px 0 60px}.settings-layout h1{font-family:var(--font-display);margin:8px 0 30px;font-size:clamp(3rem,8vw,5rem);font-weight:520;line-height:.95}.settings-form{border:1px solid var(--line);background:var(--paper-strong);gap:24px;padding:28px;display:grid;box-shadow:10px 10px #36574429}.setting-toggle{align-items:flex-start;gap:12px;display:flex}.setting-toggle input{width:18px;height:18px;margin-top:2px}.setting-toggle span,.number-setting{gap:4px;display:grid}.setting-toggle small{color:var(--muted);line-height:1.5}.number-setting{font-size:.78rem;font-weight:750}.number-setting input{border:1px solid var(--line);background:#fff;width:120px;min-height:44px;padding:8px 10px}.number-setting input:disabled{opacity:.45}.progress-layout{width:min(1040px,100% - 32px);min-height:100vh;margin:0 auto;padding:105px 0 60px}.history-layout{width:min(1120px,100% - 32px);min-height:100vh;margin:0 auto;padding:105px 0 60px}.history-header{justify-content:space-between;align-items:end;gap:24px;margin-bottom:38px;display:flex}.history-header h1{font-family:var(--font-display);margin:8px 0 0;font-size:clamp(3.5rem,8vw,6rem);font-weight:520;line-height:.9}.history-header>span{color:var(--muted);font-size:.76rem}.history-table-wrap{border:1px solid var(--line);background:var(--paper-strong)}.history-table{border-collapse:collapse;table-layout:fixed;width:100%}.history-table th,.history-table td{border-bottom:1px solid var(--line);text-align:left;vertical-align:middle;padding:14px 16px}.history-table th{color:var(--muted);background:var(--forest)}@supports (color:color-mix(in lab, red, red)){.history-table th{background:color-mix(in srgb, var(--forest) 5%, var(--paper-strong))}}.history-table th{font-size:.63rem;font-weight:800}.history-table tbody tr:last-child td{border-bottom:0}.history-table th:first-child{width:21%}.history-table th:nth-child(2){width:28%}.history-table th:nth-child(3){width:15%}.history-table th:nth-child(4),.history-table th:nth-child(5){width:10%}.history-table th:nth-child(6){width:16%}.history-table td{font-variant-numeric:tabular-nums;font-size:.76rem}.history-table time,.history-table small{color:var(--muted)}.history-puzzle{grid-template-columns:auto 1fr;align-items:baseline;gap:2px 8px;display:grid}.history-puzzle>span{color:var(--muted);font-size:.67rem}.history-puzzle>div{grid-column:1/-1;gap:4px;min-width:0;display:flex;overflow:hidden}.history-puzzle>div span{color:var(--forest-strong);background:var(--forest);padding:2px 5px;overflow:hidden}@supports (color:color-mix(in lab, red, red)){.history-puzzle>div span{background:color-mix(in srgb, var(--forest) 10%, transparent)}}.history-puzzle>div span{text-overflow:ellipsis;white-space:nowrap;font-size:.58rem}.history-outcome{font-weight:800;display:block}.outcome-solved{color:var(--forest)}.outcome-failed,.outcome-too_hard{color:var(--coral)}.outcome-skipped,.outcome-too_easy{color:var(--muted)}.history-empty{border:1px solid var(--line);background:var(--paper-strong);text-align:center;padding:40px}.history-empty h2{font-family:var(--font-display);margin:0;font-size:2rem}.history-empty p{color:var(--muted);margin:8px 0 22px}.history-empty .primary-command{text-decoration:none;display:inline-flex}.history-pagination{color:var(--muted);grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin-top:16px;font-size:.7rem;display:grid}.history-pagination a{color:var(--forest-strong);align-items:center;gap:4px;font-weight:800;text-decoration:none;display:inline-flex}.history-pagination a:last-child{justify-self:end}.history-pagination svg{width:15px;height:15px}.progress-header{justify-content:space-between;align-items:end;gap:24px;display:flex}.progress-header h1{font-family:var(--font-display);margin:8px 0 0;font-size:clamp(3.5rem,8vw,6rem);font-weight:520;line-height:.9}.rating-confidence{color:var(--muted);font-size:.76rem}.progress-metrics{border:1px solid var(--line);background:var(--line);grid-template-columns:repeat(5,1fr);gap:1px;margin:42px 0;display:grid}.progress-metrics>div{background:var(--paper-strong);gap:3px;min-width:0;padding:18px;display:grid}.progress-metrics span{color:var(--muted);font-size:.68rem}.progress-metrics strong{font-family:var(--font-display);font-variant-numeric:tabular-nums;font-size:1.8rem}.progress-section{border:1px solid var(--line);background:var(--paper-strong);margin-top:22px;padding:24px}.progress-section h2{font-family:var(--font-display);margin:4px 0 20px;font-size:1.8rem;font-weight:560}.rating-chart{min-height:200px;padding-left:42px;position:relative}.rating-chart svg{width:100%;height:200px;overflow:visible}.rating-chart line{stroke:var(--line);stroke-width:1px}.rating-chart polyline{fill:none;stroke:var(--forest);stroke-width:4px;stroke-linecap:round;stroke-linejoin:round}.rating-chart circle{fill:var(--gold);stroke:var(--forest-strong);stroke-width:2px}.chart-range{color:var(--muted);font-variant-numeric:tabular-nums;flex-direction:column;justify-content:space-between;font-size:.64rem;display:flex;position:absolute;inset:19px auto 19px 0}.forecast-chart{grid-template-columns:repeat(14,minmax(18px,1fr));align-items:end;gap:7px;min-height:180px;display:grid}.forecast-chart>div{text-align:center;grid-template-rows:18px 130px 18px;gap:4px;min-width:0;display:grid}.forecast-count,.forecast-chart time{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.6rem}.forecast-track{background:var(--forest);position:relative}@supports (color:color-mix(in lab, red, red)){.forecast-track{background:color-mix(in srgb, var(--forest) 8%, transparent)}}.forecast-track span{background:var(--forest);min-height:3px;position:absolute;bottom:0;left:0;right:0}@media (max-width:720px){.progress-layout{width:min(560px,100% - 24px);padding-top:90px}.progress-header{flex-direction:column;align-items:start}.progress-metrics{grid-template-columns:repeat(2,1fr)}.progress-metrics>div:first-child{grid-column:span 2}.progress-section{padding:18px 12px}.forecast-chart{gap:3px}.forecast-chart time{font-size:.52rem}.history-layout{width:min(560px,100% - 24px);padding-top:90px}.history-header{flex-direction:column;align-items:start}.history-table-wrap{background:0 0;border:0}.history-table,.history-table tbody,.history-table tr,.history-table td{width:100%;display:block}.history-table thead{display:none}.history-table tr{border:1px solid var(--line);background:var(--paper-strong);grid-template-columns:repeat(2,minmax(0,1fr));gap:13px 18px;margin-bottom:10px;padding:14px;display:grid}.history-table td{border:0;gap:3px;padding:0;display:grid}.history-table td:before{content:attr(data-label);color:var(--muted);font-size:.58rem;font-weight:800}.history-table td:first-child,.history-table .history-puzzle{grid-column:1/-1}.history-puzzle{grid-template-columns:auto 1fr;display:grid}.history-puzzle:before,.history-puzzle>div{grid-column:1/-1}}.grade-grid span{color:var(--muted);margin-top:3px;font-size:.68rem}.guest-strip{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:12px;margin-top:38px;padding-top:15px;font-size:.76rem;display:flex}.guest-strip button,.guest-strip a{color:var(--forest-strong);background:0 0;border:0;align-items:center;gap:3px;padding:0;font-weight:800;display:inline-flex}.guest-strip button:disabled{cursor:default}.guest-strip svg{width:14px}.empty-state{width:min(680px,100% - 32px);margin:15vh auto}.empty-state code{background:var(--paper-strong);padding:2px 5px}.auth-layout{grid-template-columns:1fr minmax(340px,.72fr);align-items:center;gap:80px;width:min(980px,100% - 32px);min-height:100vh;margin:0 auto;display:grid}.auth-intro h1,.mailbox-layout h1{font-family:var(--font-display);margin:10px 0 16px;font-size:clamp(3rem,7vw,5.5rem);font-weight:520;line-height:.92}.auth-intro p{max-width:520px;color:var(--muted);font-size:1.02rem;line-height:1.7}.back-link{color:var(--forest-strong);align-items:center;gap:7px;font-size:.82rem;font-weight:750;text-decoration:none;display:inline-flex;position:absolute;top:32px}.back-link svg{width:16px}.auth-form-panel{border:1px solid var(--line);background:var(--paper-strong);padding:28px;box-shadow:10px 10px #36574429}.auth-tabs{border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;margin-bottom:26px;display:grid}.auth-tabs button{color:var(--muted);background:0 0;border:0;border-bottom:3px solid #0000;padding:10px 4px;font-weight:750}.auth-tabs button[aria-selected=true]{border-bottom-color:var(--forest);color:var(--ink)}.auth-form-panel form,.auth-form-panel label{display:grid}.auth-form-panel form{gap:18px}.auth-form-panel label{gap:7px;font-size:.78rem;font-weight:750}.auth-form-panel input{border:1px solid var(--line);width:100%;min-height:44px;color:var(--ink);background:#fff;padding:9px 11px}.auth-form-panel .primary-command{width:100%;margin-top:4px}.form-message{color:var(--forest-strong);margin:0;font-size:.8rem;line-height:1.5}.mailbox-link{color:var(--forest-strong);text-align:center;margin-top:18px;font-size:.78rem;font-weight:750;display:block}.spinner{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.mailbox-layout{width:min(860px,100% - 32px);margin:0 auto;padding:48px 0}.mailbox-layout header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;display:flex}.mailbox-layout h1{font-size:3.5rem}.mailbox-layout header a,.message-list a{color:var(--forest-strong);font-weight:750}.mailbox-empty{color:var(--muted);margin-top:36px}.message-list{gap:12px;margin-top:28px;display:grid}.message-list article{border-left:4px solid var(--gold);background:var(--paper-strong);padding:22px}.message-list article>span{color:var(--muted);font-size:.72rem}.message-list h2{font-family:var(--font-display);margin:5px 0 12px;font-size:1.5rem}.message-list p{overflow-wrap:anywhere;color:var(--muted);font-size:.8rem}@media (max-width:820px){.app-shell{width:min(680px,100% - 24px)}.site-header{min-height:64px}.icon-command span{display:none}.trainer-layout{grid-template-columns:1fr;gap:34px;min-height:auto;padding:22px 0 44px}.training-panel{border:1px solid var(--line);padding:14px}.compact-actions{flex-wrap:wrap}.compact-actions .theme-filter-menu{left:0;right:auto}.auth-layout{grid-template-columns:1fr;gap:30px;width:min(560px,100% - 24px);min-height:auto;padding:100px 0 50px}.auth-intro h1{font-size:3.3rem}}@media (max-width:480px){.wordmark>span:last-child,.sign-in-command span{display:none}.sign-in-command{justify-content:center;width:40px;padding:0}.board-frame{border-width:4px;box-shadow:7px 7px #36574438}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}