:root{color-scheme:light;--background: rgb(242, 242, 247);--panel: rgb(255, 255, 255);--card: rgb(255, 255, 255);--editor: rgb(255, 255, 255);--line: rgb(209, 209, 214);--accent: rgb(0, 122, 255);--amber: rgb(255, 149, 0);--silver: rgb(142, 142, 147);--foreground: rgb(28, 28, 30);--onAccent: rgb(255, 255, 255);--error: rgb(199, 26, 26);--syntax-control: #AF00DB;--syntax-type: #0000FF;--syntax-preprocessor: #0000FF;--syntax-op: #0000FF;--syntax-string: #A31515;--syntax-comment: #008000;--syntax-number: #098658;--safe-bottom: env(safe-area-inset-bottom, 0px);--keyboard-inset: 0px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}html,body,#app{margin:0;min-height:100%;height:100%;background:var(--background);color:var(--foreground)}*{box-sizing:border-box}button,input,textarea{font:inherit;color:inherit}button{background:none;border:0;padding:0;cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid 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48px;gap:36px}.home-projects{display:flex;flex-direction:column;gap:12px}.home-header{display:flex;align-items:center;gap:12px}.learn-title{font-size:28px;font-weight:600}.logo{height:44px;width:auto}.hero{display:flex;align-items:center;gap:12px;padding:16px 18px;background:var(--accent);color:var(--onAccent);border-radius:14px;text-align:left;width:100%}.hero .name{font-size:17px;font-weight:600}.hero .file{font-size:15px;opacity:.85}.section-label{font-size:13px;font-weight:600;color:var(--silver);text-transform:uppercase;letter-spacing:.4px}.hour-meter{display:flex;align-items:center;gap:8px}.deck-header{display:flex;flex-direction:column;gap:8px}.deck-header 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ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}.badge.pulse .dot{animation:pulse .7s ease-in-out infinite alternate}@keyframes pulse{0%{opacity:.35}to{opacity:1}}.stdin-row{display:flex;align-items:center;gap:8px;margin-top:8px;padding:0 10px;height:44px;background:var(--panel);border-radius:6px;border:1px solid var(--line)}.stdin-row.waiting{border-color:var(--amber);border-width:1.5px}.kbd-hide,.format-btn{width:34px;height:30px;display:grid;place-items:center;background:var(--panel);border:1px solid color-mix(in srgb,var(--line) 75%,transparent);border-radius:4px;color:var(--silver);flex-shrink:0}.format-btn{font:700 11px ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;width:auto;height:34px;padding:0 10px;color:var(--accent)}.topbar .format-btn{background:var(--panel)}.symbol-bar{display:none;background:var(--panel);border-top:1px solid var(--line);height:40px;padding:0 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.logo{height:44px}.onboarding-logo-lg{height:52px!important}.onboarding-halo{padding:28px 36px;border-radius:22px;display:grid;place-items:center;background:color-mix(in srgb,var(--accent) 12%,transparent);box-shadow:0 0 0 1.5px color-mix(in srgb,var(--accent) 28%,transparent)}.onboarding-stamps{display:flex;gap:10px}.onboarding-stamp{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;font-weight:700;letter-spacing:1.2px;color:var(--accent);padding:8px 14px;background:var(--card);border-radius:8px;border:1px solid color-mix(in srgb,var(--accent) 45%,transparent)}.onboarding-editor{width:100%;background:var(--card);border-radius:14px;border:1px solid color-mix(in srgb,var(--line) 70%,transparent);overflow:hidden;text-align:left;box-shadow:0 8px 20px color-mix(in srgb,var(--accent) 10%,transparent);background-image:repeating-linear-gradient(to bottom,transparent,transparent 2px,color-mix(in srgb,var(--foreground) 4%,transparent) 3px)}.onboarding-editor-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;font-size:13px;font-weight:600}.onboarding-run{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:11px;font-weight:700;color:var(--onAccent);background:var(--accent);border-radius:4px;padding:5px 10px;box-shadow:0 0 10px color-mix(in srgb,var(--accent) 45%,transparent)}.onboarding-code{margin:0;padding:14px;font-size:13px;font-weight:500;line-height:1.45;background:var(--editor);border-top:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-bottom:1px solid color-mix(in srgb,var(--line) 80%,transparent)}.onboarding-out{display:flex;align-items:center;gap:8px;padding:12px 14px;color:var(--accent);font-size:14px}.onboarding-pip{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 6px var(--accent)}.onboarding-headline{margin:20px 0 0;font-size:28px;font-weight:600;line-height:1.15}.onboarding-line{margin:8px 0 0;font-size:17px;color:var(--silver)}.onboarding-dots{display:flex;justify-content:center;gap:8px;margin-bottom:22px}.onboarding-dot{width:7px;height:7px;border-radius:50%;background:var(--line)}.onboarding-dot.on{background:var(--accent);box-shadow:0 0 8px color-mix(in srgb,var(--accent) 45%,transparent)}.onboarding-primary{width:100%;padding:16px;font-size:17px;font-weight:600;color:var(--onAccent);background:var(--accent);border-radius:14px}.swipe-card-score{font:600 13px ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--accent)}.linux-course-teaser{flex:none;width:100%;box-sizing:border-box;height:auto;overflow:visible}.quiz-swipe-card 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ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--foreground);background:var(--editor);border-radius:12px;white-space:pre-wrap;overflow-x:auto}.quiz-choices{overflow:hidden}.quiz-choice{display:flex;align-items:center;gap:12px;width:100%;padding:14px 16px;text-align:left}.quiz-choice:disabled{cursor:default}.quiz-letter{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--silver);display:grid;place-items:center;font:600 15px ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--silver);flex-shrink:0}.quiz-choice.picked .quiz-letter{border-color:var(--accent);color:var(--accent)}.quiz-choice.correct{background:color-mix(in srgb,var(--accent) 12%,transparent)}.quiz-choice.correct .quiz-letter{border-color:var(--accent);color:var(--accent)}.quiz-choice.missed{background:color-mix(in srgb,var(--amber) 12%,transparent)}.quiz-choice.missed .quiz-letter{border-color:var(--amber);color:var(--amber)}.quiz-footer{padding:16px;background:var(--panel);border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent);flex-shrink:0}.quiz-submit{width:100%;min-height:44px;font:700 15px ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--onAccent);background:var(--accent);border-radius:8px}.quiz-submit:disabled{opacity:.45}.quiz-score{font:600 44px ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;color:var(--accent)}