.practice-gate,.practice-area,.practice-admin{margin-bottom:90px}.practice-gate{padding:40px;background:var(--panel);border:1px solid var(--line);border-radius:18px}.practice-gate p{margin:24px 0;max-width:650px}.practice-account{display:flex;gap:25px;align-items:center;flex-wrap:wrap;padding:18px 0;border-block:1px solid var(--line)}.practice-account a{font-size:12px;color:var(--orange)}#practice-service{margin:20px 0;color:var(--gold)}.practice-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:25px}.practice-sidebar,.practice-problem,.practice-editor,.practice-admin{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:25px}.practice-sidebar{align-self:start}.practice-workspace{min-width:0;display:grid;gap:25px}.practice-sidebar button{width:100%;text-align:left;display:flex;flex-direction:column;gap:8px;margin-top:12px;padding:15px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text)}.practice-sidebar button[aria-pressed=true]{border-color:var(--orange)}.practice-sidebar small{color:var(--muted)}.practice-problem h2{font-size:34px;letter-spacing:-1px}.practice-problem h3,.practice-admin h3{margin:24px 0 12px}.practice-problem p{margin-top:18px;white-space:pre-wrap}.practice-example{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:20px}.practice-example h4{font-size:12px;color:var(--muted);margin:0 0 8px}.practice-example pre{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:18px;margin:0;font:13px/1.8 Consolas,monospace;overflow:auto;max-height:220px}.practice-editor-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.practice-area label,.practice-admin label{display:block;font-size:12px}.practice-area select,.practice-admin select,.practice-admin input:not([type=checkbox]),.practice-admin textarea{display:block;width:100%;margin:9px 0 18px;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text)}.practice-code-area{display:flex;background:#091427;border:1px solid #8eaacf40;border-radius:10px;overflow:hidden;height:400px}.practice-code-area pre{margin:0;padding:20px 12px;min-width:42px;font:14px/1.8 Consolas,monospace;color:#7290b6;text-align:right;overflow:hidden;user-select:none;background:#0d1c33}.practice-code-area textarea{border:0;background:transparent;color:#e1edff;font:14px/1.8 Consolas,monospace;resize:none;width:100%;padding:20px 14px;white-space:pre;tab-size:4;min-width:0;outline-offset:-3px}#practice-code-note{font-size:11px;margin:15px 0;line-height:1.9}.practice-editor .button{margin-top:10px}#practice-result{margin-top:20px;padding:15px;border-left:2px solid var(--orange);background:var(--surface);white-space:pre-wrap}.practice-ranking{margin-top:60px}.practice-ranking>p{margin:25px 0;max-width:800px}.practice-ranking ol{padding:0;list-style:none}.practice-ranking li{padding:15px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}.practice-admin{max-width:1000px}.practice-admin-fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.practice-admin small{display:block;color:var(--muted);font-size:10px}.practice-admin .practice-account{margin-bottom:25px}.practice-admin p{font-size:12px;margin:12px 0 20px}.admin-test{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;border:1px solid var(--line);border-radius:10px;margin:12px 0;padding:15px}.admin-test textarea{font:12px/1.6 Consolas,monospace;min-height:100px}.admin-test button{align-self:center;border:0;background:transparent;color:var(--orange);padding:10px}.admin-publish{margin:25px 0}#admin-status{color:var(--gold)}.language-ribbon{gap:20px;flex-wrap:wrap;font-size:16px}.hero-copy p{max-width:470px;line-height:1.9}.site-header nav{gap:18px}.site-header{gap:16px}
.practice-editor #practice-submit:disabled{cursor:not-allowed;opacity:.65}.practice-editor #practice-submit[aria-busy=true]{cursor:progress}.practice-editor #practice-reset{background:transparent;border:0;color:var(--text);font:inherit;cursor:pointer}#site-auth-status{color:var(--orange);font-size:13px;white-space:pre-wrap}.auth-name-fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.header-account{display:flex;align-items:center;gap:10px}.header-account button{border:1px solid var(--line);border-radius:9px;color:var(--text);background:var(--surface);padding:8px 11px;white-space:nowrap;font-size:11px}.header-account #header-user{font-size:11px;max-width:115px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.site-header{flex-wrap:wrap}.site-header>.theme-toggle{margin-left:auto}.site-header>nav{margin-left:auto;gap:18px}.site-auth-dialog input{margin-bottom:10px}.site-auth-dialog .quiz-social a[aria-disabled=true]{cursor:not-allowed}
@media(max-width:1000px){.practice-layout{grid-template-columns:210px minmax(0,1fr)}.site-header nav{gap:10px}.site-header .brand{font-size:18px}}
@media(max-width:800px){.header-account{order:3;width:100%;justify-content:flex-end;border-top:1px solid var(--line);padding-top:10px}.site-header>nav{order:4}.header-account #header-user{max-width:65vw}.auth-name-fields{grid-template-columns:1fr}.header-account button{min-height:35px}}
@media(max-width:800px){.practice-layout{grid-template-columns:1fr}.practice-sidebar{padding:18px}#practice-tasks{display:grid;grid-template-columns:1fr 1fr;gap:8px}.practice-sidebar button{margin:0;font-size:11px}.practice-problem,.practice-editor,.practice-admin{padding:20px}.practice-problem h2{font-size:28px}.practice-admin-fields{grid-template-columns:1fr}.practice-editor-bar{flex-wrap:wrap}.practice-account{font-size:12px;gap:16px}.practice-example{gap:10px}.admin-test{grid-template-columns:1fr}.practice-code-area{height:340px}}