:root{--bg:#f5f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--line:#e5e7eb;--accent:#2563eb;--ok:#059669;--warn:#d97706;--danger:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Noto Sans KR",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.container{max-width:1180px;margin:auto;padding:24px}.topbar{background:#111827;color:#fff;padding:14px 22px;display:flex;gap:18px;align-items:center;justify-content:space-between}.topbar nav{display:flex;gap:12px;flex-wrap:wrap}.topbar a{color:#fff;opacity:.92}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:18px;box-shadow:0 6px 24px rgba(15,23,42,.05)}.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.btn,button{display:inline-block;border:none;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;background:#e5e7eb}.btn.primary,button.primary{background:var(--accent);color:#fff}.btn.ok{background:var(--ok);color:#fff}.btn.danger{background:var(--danger);color:#fff}.input,textarea,select{width:100%;padding:12px;border:1px solid #d1d5db;border-radius:11px;background:#fff;font:inherit}label{font-weight:700;display:block;margin:10px 0 6px}.muted{color:var(--muted)}.badge{display:inline-block;padding:5px 9px;border-radius:999px;background:#eef2ff;font-size:.86rem}.badge.ok{background:#d1fae5;color:#065f46}.badge.wait{background:#fef3c7;color:#92400e}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.thumb{width:140px;height:100px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}.mission-card{border-left:6px solid var(--accent)}.student-shell{max-width:720px;margin:auto;padding:18px}.student-title{font-size:1.8rem;margin:.2rem 0}.big-btn{width:100%;padding:16px;font-size:1.1rem}.preview{max-width:100%;border-radius:16px;margin-top:12px}.landing{min-height:100vh;display:grid;place-items:center;padding:24px}.hero-card{max-width:700px;background:#fff;border-radius:26px;padding:42px;box-shadow:0 18px 60px rgba(15,23,42,.12);text-align:center}.logo{font-size:1rem;font-weight:900;color:var(--accent);letter-spacing:.15em}.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:24px}.stat{font-size:2rem;font-weight:900}.small{font-size:.88rem}@media(max-width:760px){.grid.two,.grid.three{grid-template-columns:1fr}.container{padding:14px}.topbar{align-items:flex-start;flex-direction:column}.thumb{width:100%;height:auto}}