/* homework.css : 학생 「📮 과제」(homework.js)와 선생님 과제 내기·채점(homework-admin.html) 함께 쓰는 모양, 2026-11-12 */
.hw-box { margin: 0 0 16px; }
.hw-card { background: #fff; border: 1px solid #dfe3f5; border-radius: 16px; padding: 16px 18px; margin: 0 0 12px; box-shadow: 0 3px 12px rgba(30, 27, 75, .06); font-size: 17px; line-height: 1.6; }
.hw-card.muted, .hw-empty { color: #6b7280; }
.hw-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.hw-item { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; text-align: left; font: inherit; padding: 16px 18px; min-height: 112px; border-radius: 16px; border: 2px solid #c7d2fe; background: #fff; cursor: pointer; color: #1e1b4b; transition: transform .12s, box-shadow .12s, border-color .12s; }
.hw-item:hover, .hw-item:focus-visible { border-color: #6366f1; box-shadow: 0 8px 20px rgba(79, 70, 229, .16); transform: translateY(-2px); outline: none; }
.hw-ttl { font-size: 19px; font-weight: 800; line-height: 1.35; word-break: keep-all; }
.hw-chip { font-size: 14px; font-weight: 800; padding: 3px 10px; border-radius: 999px; background: #e0e7ff; color: #3730a3; }
.hw-new { border-color: #fb7185; } .hw-new .hw-chip { background: #ffe4e6; color: #be123c; }
.hw-draft .hw-chip { background: #fef3c7; color: #92400e; }
.hw-done .hw-chip { background: #dcfce7; color: #166534; }
.hw-back { border-color: #a78bfa; } .hw-back .hw-chip { background: #ede9fe; color: #5b21b6; }
.hw-meta { display: flex; gap: 10px; align-items: center; color: #6b7280; font-size: 15px; margin-top: auto; }
.hw-meta em { font-style: normal; font-weight: 800; color: #5b21b6; }
.hw-old { margin-top: 14px; } .hw-old > summary { cursor: pointer; font-weight: 700; color: #4b5563; padding: 6px 0; font-size: 16px; } .hw-old .hw-list { margin-top: 8px; opacity: .85; }
.hw-top { display: flex; align-items: center; gap: 12px; margin: 0 0 12px; flex-wrap: wrap; }
.hw-due { font-size: 15px; font-weight: 800; color: #be123c; background: #ffe4e6; border-radius: 999px; padding: 3px 12px; }
.hw-top h3 { margin: 0; font-size: 22px; color: #1e1b4b; word-break: keep-all; }
.hw-label { display: block; font-size: 14px; font-weight: 800; color: #4f46e5; margin: 0 0 4px; letter-spacing: .02em; }
.hw-q p { margin: 0 0 10px; font-size: 18px; font-weight: 600; color: #111827; }
.hw-material { background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 12px; padding: 10px 14px; margin: 0 0 10px; font-size: 16px; color: #374151; }
.hw-crit summary { cursor: pointer; font-weight: 800; color: #0f766e; font-size: 16px; } .hw-crit p { margin: 6px 0 0; font-size: 16px; color: #134e4a; background: #f0fdfa; border-radius: 10px; padding: 8px 12px; }
.hw-write textarea { width: 100%; box-sizing: border-box; min-height: 180px; resize: vertical; font: inherit; font-size: 18px; line-height: 1.7; padding: 12px 14px; border: 2px solid #c7d2fe; border-radius: 12px; background: #fff; color: #111827; }
.hw-write textarea:focus { outline: none; border-color: #6366f1; box-shadow: 0 0 0 3px rgba(99, 102, 241, .18); }
.hw-write textarea[readonly] { background: #f8fafc; border-color: #e5e7eb; }
.hw-tools { display: flex; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.hw-sp { flex: 1; }
.hw-count { color: #6b7280; font-size: 15px; }
.hw-pri, .hw-ghost { font: inherit; font-size: 17px; font-weight: 800; border-radius: 12px; padding: 10px 18px; cursor: pointer; min-height: 46px; }
.hw-pri { background: #4f46e5; color: #fff; border: 0; } .hw-pri:hover { background: #4338ca; }
.hw-ghost { background: #fff; color: #3730a3; border: 2px solid #c7d2fe; } .hw-ghost:hover { border-color: #6366f1; }
.hw-ghost.on { background: #fee2e2; border-color: #f87171; color: #b91c1c; }
.hw-pri:disabled, .hw-ghost:disabled { opacity: .55; cursor: default; }
.hw-note { margin: 0 0 12px; padding: 10px 14px; border-radius: 12px; background: #eef2ff; color: #3730a3; font-size: 16px; font-weight: 600; }
.hw-note.ok { background: #ecfdf5; color: #065f46; } .hw-note.warn { background: #fef2f2; color: #991b1b; }
.hw-feedback { border: 2px solid #a78bfa; background: linear-gradient(135deg, #faf5ff, #fff); }
.hw-fb-head { font-weight: 800; color: #5b21b6; font-size: 15px; }
.hw-fb-score { display: flex; gap: 12px; align-items: baseline; margin: 4px 0; font-size: 26px; color: #4c1d95; }
.hw-lv { background: #7c3aed; color: #fff; border-radius: 10px; padding: 0 12px; font-size: 22px; }
.hw-fb-msg { margin: 6px 0 0; font-size: 18px; color: #1f2937; }
.hw-mine { margin-top: 10px; } .hw-mine summary { cursor: pointer; font-weight: 700; color: #92400e; } .hw-mine textarea { min-height: 90px; margin-top: 6px; }
@media (max-width: 600px) { .hw-list { grid-template-columns: 1fr; } .hw-top h3 { font-size: 19px; } .hw-pri, .hw-ghost { font-size: 16px; padding: 9px 14px; } }