:root{--fg: #1c1c1c;--muted: #6b6b6b;--bg: #ffffff;--card: #f7f4ef;--line: #e3ded5;--accent: #b3541e;--danger: #a11f1f;--ok: #2f6b34}*{box-sizing:border-box}body{margin:0;color:var(--fg);background:var(--bg);font:17px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif}.app{max-width:720px;margin:0 auto;padding:12px 12px 40px}.app a:not(.button){color:var(--accent);text-decoration:none}.app a:not(.button):hover{text-decoration:underline}h1,h2{font-size:21px;margin:0 0 12px}h3{font-size:19px;margin:0 0 4px}.loading,.muted{color:var(--muted)}.error{color:var(--danger);font-weight:600}.form{display:flex;flex-direction:column;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-weight:600}.field input,.field textarea,.field select{font:inherit;min-height:48px;padding:10px 12px;border:1px solid var(--line);border-radius:10px}.field textarea{min-height:90px}.button{display:inline-flex;align-items:center;justify-content:center;font:inherit;font-weight:600;min-height:48px;padding:12px 20px;border:1px solid var(--accent);border-radius:10px;background:transparent;color:var(--accent);cursor:pointer;text-decoration:none}.button:disabled{opacity:.5;cursor:default}.button-wide{display:block;width:100%;text-align:center}.button+.button{margin-left:10px}.card-list{list-style:none;margin:0 0 16px;padding:0;display:flex;flex-direction:column;gap:10px}.card{border:1px solid var(--line);border-radius:12px;padding:14px;background:var(--card)}.card-title{font-weight:600}.card-meta{color:var(--muted);font-size:15px;margin-top:2px}.price{font-weight:700;font-size:19px}.lesson-image{display:block;max-width:100%;border-radius:10px;margin-top:8px}.status-published{color:var(--ok);font-weight:600}.status-draft{color:var(--muted);font-weight:600}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.actions .button{margin-left:0}