:root{color-scheme:light;--bg: #fffdfb;--surface: #ffffff;--surface-soft: #f8f5ef;--text: #111111;--muted: #5b4f44;--line: #e6d9cf;--accent: #e53935;--accent-dark: #b71c1c;--display-font: "Arial Narrow", "Roboto Condensed", Impact, Haettenschweiler, sans-serif;--shadow: 0 18px 50px rgba(17, 17, 17, .12)}*{box-sizing:border-box}html{scroll-behavior:smooth}html:not(.aos-enabled) [data-aos]{opacity:1!important;transform:none!important}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at top left,rgba(63,169,245,.08),transparent 24%),radial-gradient(circle at top right,rgba(229,57,53,.12),transparent 22%),linear-gradient(180deg,#fffdfb,#f6efe9 42%,#fff)}a{color:inherit;text-decoration:none}.detail .content a,.editor .preview a{color:#b71c1c;text-decoration:underline;text-decoration-thickness:2px}.detail .content a:focus-visible,.editor .preview a:focus-visible{outline:3px solid #B71C1C;outline-offset:2px}.skip-link{position:fixed;top:8px;left:8px;z-index:100;padding:10px 14px;border-radius:10px;background:#111;color:#fff;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}button,input,textarea{font:inherit}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}[data-aos]{opacity:1!important;transform:none!important}}.academy-error{margin-block:12px;padding:12px 14px;border-left:4px solid #B71C1C;background:#fdecea;color:#111}.btn{display:inline-flex;justify-content:center;align-items:center;gap:6px;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);font-weight:700;text-decoration:none;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease}.btn:hover{transform:translateY(-2px);box-shadow:4px 4px 0 var(--line)}.btn.primary{border-color:transparent;background:linear-gradient(180deg,#f04843 0%,var(--accent) 100%);color:#fff;box-shadow:0 12px 24px #c20b0b38}.btn.primary:hover{box-shadow:0 16px 32px #c20b0b4d}.btn.danger{border-color:var(--accent-dark);color:var(--accent-dark)}.btn.danger:hover{background:#fdecea;box-shadow:4px 4px 0 var(--accent-dark)}.btn:disabled{cursor:not-allowed;opacity:.6;transform:none;box-shadow:none}.btn:focus-visible{outline:3px solid var(--accent-dark);outline-offset:2px}