@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");:root{--bg:#f5f3ff;--surface:#fff;--text:#1e1b4b;--muted:#6b7280;--primary:#6366f1;--primary-dark:#4f46e5;--primary-soft:#ede9fe;--border:#e0e7ff;--border-soft:#f0ebff;--danger:#dc2626;--ok:#16a34a;--info:#4f46e5;--shadow-sm:0 1px 3px rgba(99,102,241,.07),0 1px 2px rgba(0,0,0,.04);--shadow-md:0 4px 16px rgba(99,102,241,.1),0 2px 4px rgba(0,0,0,.04);--shadow-lg:0 8px 32px rgba(99,102,241,.14),0 4px 8px rgba(0,0,0,.06);--radius:14px;--radius-sm:10px;--radius-xs:8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Pretendard,Noto Sans KR,-apple-system,sans-serif;color:var(--text);background:linear-gradient(160deg,#f0ebff,#f5f3ff 40%,#eef2ff);min-height:100vh;-webkit-font-smoothing:antialiased}main{max-width:1100px;margin:0 auto;padding:24px 16px 80px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}.sticky-header{position:-webkit-sticky;position:sticky;top:8px;z-index:20;display:flex;justify-content:space-between;gap:12px;align-items:center;border-bottom:none;background:hsla(0,0%,100%,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);box-shadow:var(--shadow-md)}.header-actions{min-width:200px}.grid{display:grid;grid-gap:16px;gap:16px}.grid.two{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--muted);letter-spacing:.01em}input,select,textarea{width:100%;border-radius:var(--radius-sm);border:1.5px solid var(--border);padding:10px 14px;font:inherit;font-size:14px;color:var(--text);background:#fff;transition:border-color .15s,box-shadow .15s;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.12)}input::placeholder,textarea::placeholder{color:#c4c4c8}textarea{min-height:88px;resize:vertical}button{width:100%;border-radius:var(--radius-sm);border:none;padding:11px 16px;font:inherit;font-size:14px;font-weight:600;cursor:pointer;min-height:44px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;transition:opacity .15s,transform .1s,box-shadow .15s;box-shadow:0 2px 8px rgba(99,102,241,.25);letter-spacing:.01em}button:hover:not(:disabled){opacity:.92;box-shadow:0 4px 16px rgba(99,102,241,.35);transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}button.ghost{background:var(--primary-soft);color:var(--primary);box-shadow:none}button.ghost:hover:not(:disabled){background:#ddd6fe;box-shadow:none}button.outline{background:#fff;color:var(--text);border:1.5px solid var(--border);box-shadow:none}button.outline:hover:not(:disabled){border-color:var(--primary);color:var(--primary);background:var(--primary-soft);box-shadow:none;transform:none}p.hint{color:var(--muted);font-size:13px;margin-top:6px;margin-bottom:0;line-height:1.6}.notice{margin:8px 0 0;font-size:13px;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);font-weight:500}.notice.success{color:#166534;background:#f0fdf4;border-color:#bbf7d0}.notice.error{color:#991b1b;background:#fef2f2;border-color:#fecaca}.notice.info{color:#3730a3;background:#eef2ff;border-color:#c7d2fe}.row{display:flex;gap:8px;align-items:center}.space-between{justify-content:space-between}.badge{display:inline-flex;padding:3px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.01em}.tabs{display:flex;gap:6px;overflow-x:auto;padding:4px;background:#f3f0ff;border-radius:12px;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{width:auto;padding:9px 16px;background:transparent;color:#7c6fcd;border-radius:9px;border:none;font-weight:600;font-size:13px;min-height:unset;box-shadow:none;white-space:nowrap;transition:background .15s,color .15s}.tab:hover:not(.active){background:rgba(99,102,241,.08);color:var(--primary);transform:none;box-shadow:none}.tab.active{background:#fff;color:var(--primary);box-shadow:0 2px 8px rgba(99,102,241,.15);transform:none}.empty-state{border:1.5px dashed #c7d2fe;border-radius:var(--radius);padding:24px 16px;text-align:center;background:#fafbff}.empty-state 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var(--border-soft);background:#fafbff;border-radius:var(--radius) var(--radius) 0 0}.feed-post-author{display:block;line-height:1.4}.feed-post-body{padding:14px 16px 16px}.feed-post-comments{margin-top:12px;padding:12px;border:1px solid var(--border-soft);border-radius:var(--radius-sm);background:#f9f8ff}.feed-card-grid{display:grid;grid-gap:14px;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}@media (max-width:768px){.sticky-header{position:static;flex-direction:column;align-items:stretch;-webkit-backdrop-filter:none;backdrop-filter:none}.student-card-grid{grid-template-columns:1fr}main{padding:16px 12px 64px}}@media (min-width:769px) and (max-width:1024px){.student-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}