/* =========================================================
   hub.css｜作業區（homeworks.html）與資源專區（links.html）
   共用 digi05.css（版型）＋ home.css（評分元件）＋ shell.css（外框）
   ========================================================= */
.hub-intro { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(0,.75fr); gap: 36px; align-items: center; padding: 56px 0 8px; }
.hub-intro > * { min-width: 0; }
.hub-intro .d5-mono { color: var(--d-brand-strong); margin: 0; }
.hub-intro h2 { font: 900 clamp(28px, 3.6vw, 42px)/1.2 var(--d-font-display); margin: 12px 0 0; }
.hub-intro p.lead { margin: 14px 0 0; font-size: 16px; }
.hub-card { background: #141311; color: #F4F1EB; border-radius: 20px; padding: 20px 22px; position: relative; overflow: hidden; }
.hub-card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 100% 0%, rgba(232,89,12,.35), transparent 50%), radial-gradient(rgba(255,255,255,.07) 1px, transparent 1.2px) 0 0 / 20px 20px; pointer-events: none; }
.hub-card > * { position: relative; }
.hub-card .lbl { font: 800 11px var(--d-font-mono); letter-spacing: .14em; color: #F2B28F; display: flex; align-items: center; gap: 8px; }
.hub-card .lbl i { width: 8px; height: 8px; border-radius: 50%; background: #E8590C; box-shadow: 0 0 0 4px rgba(232,89,12,.25); }
.hub-card .big { display: flex; align-items: baseline; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.hub-card .big b { font: 900 40px/1 var(--d-font-display); color: #fff; }
.hub-card .big span { font: 700 13px var(--d-font-mono); color: #CFCAC1; }
.hub-card h3 { font: 900 17px/1.45 var(--d-font-display); color: #fff; margin: 8px 0 0; }
.hub-card p { color: #CFCAC1 !important; font-size: 13.5px !important; margin: 6px 0 0 !important; }
.hub-card .go { display: inline-flex; gap: 6px; margin-top: 12px; font-size: 13.5px; font-weight: 800; color: #141311; background: #fff; border-radius: 10px; padding: 7px 12px; text-decoration: none; }
.hub-card .go:hover { color: #141311; }
.hub-card .stats { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; margin-top: 14px; }
.hub-card .stats div { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 12px; padding: 10px; }
.hub-card .stats b { display: block; font: 900 24px/1 var(--d-font-display); color: #fff; }
.hub-card .stats span { display: block; font-size: 11.5px; color: #A8A39A; margin-top: 4px; }

/* ---------- 工具列 ---------- */
.hub-toolbar { position: sticky; top: var(--hdr, 68px); z-index: 20; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 0; margin-top: 26px; background: rgba(250,247,242,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--d-line); }
.hub-toolbar .chip-filter { margin: 0; }
.hub-search { position: relative; flex: 0 1 280px; }
.hub-search input { width: 100%; border: 1px solid var(--d-line); background: #fff; border-radius: 12px; padding: 9px 12px 9px 36px; font-size: 14px; font-family: inherit; color: var(--d-ink); }
.hub-search input:focus { outline: 2px solid var(--d-brand-soft); border-color: var(--d-brand); }
.hub-search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--d-ink-3); }
.hub-count { font: 700 12.5px var(--d-font-mono); color: var(--d-ink-3); }

/* ---------- 作業卡 ---------- */
.hw-list { display: grid; gap: 12px; margin-top: 18px; }
.hw-item { display: grid; grid-template-columns: 74px minmax(0,1fr) 210px; gap: 18px; background: #fff; border: 1px solid var(--d-line); border-radius: 18px; padding: 16px 18px; position: relative; overflow: hidden; scroll-margin-top: calc(var(--hdr, 68px) + 80px); }
.hw-item::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--c); }
.hw-item.is-hidden { display: none; }
.hw-item.is-done { opacity: .62; }
.hw-item.is-done:hover { opacity: 1; }
.hw-item.is-due { border-color: #F3B08A; box-shadow: 0 0 0 3px rgba(232,89,12,.14); }
.hw-item.exam { background: #1F1E1B; border-color: #1F1E1B; color: #F4F1EB; }
.hw-item .no { width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center; background: var(--c); color: #fff; font: 900 20px/1 var(--d-font-display); text-align: center; }
.hw-item .no small { display: block; font: 800 9.5px var(--d-font-mono); letter-spacing: .08em; opacity: .85; }
.hw-item .unit { font: 800 11px var(--d-font-mono); letter-spacing: .08em; color: var(--c); }
.hw-item.exam .unit { color: #F2B28F; }
.hw-item h3 { font: 900 18px/1.4 var(--d-font-display); margin: 2px 0 0; color: var(--d-ink); }
.hw-item.exam h3 { color: #fff; }
.hw-item p { font-size: 14px !important; margin: 6px 0 0 !important; }
.hw-item.exam p { color: #CFCAC1 !important; }
.hw-item .spec { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.hw-item .spec span { font-size: 12.5px; font-weight: 700; color: var(--d-ink-2); background: #F3EFE8; border-radius: 8px; padding: 3px 9px; }
.hw-item.exam .spec span { background: rgba(255,255,255,.1); color: #E8E3DA; }
.hw-item ol { margin: 8px 0 0; padding-left: 20px; font-size: 13.5px; line-height: 1.8; color: var(--d-ink-2); }
.hw-item.exam ol { color: #CFCAC1; }
.hw-item ol b { color: var(--d-ink); }
.hw-item.exam ol b { color: #fff; }
.hw-item .side { display: flex; flex-direction: column; gap: 8px; align-items: stretch; }
.hw-item .due { border-radius: 12px; padding: 10px 12px; background: #F7F4EF; }
.hw-item.exam .due { background: rgba(255,255,255,.08); }
.hw-item .due small { display: block; font: 800 10.5px var(--d-font-mono); letter-spacing: .1em; color: var(--d-ink-3); }
.hw-item .due b { display: block; font: 900 16px/1.35 var(--d-font-display); color: var(--d-ink); margin-top: 2px; }
.hw-item.exam .due b { color: #fff; }
.hw-item .st { align-self: flex-start; font-size: 11.5px; font-weight: 800; border-radius: 99px; padding: 3px 10px; }
.hw-item .st.done { background: #EFEDE9; color: #8A857C; }
.hw-item .st.due { background: #E8590C; color: #fff; }
.hw-item .st.open { background: #E3F2EA; color: #2B8A5E; }
.hw-item .st.later { background: #F3EFE8; color: var(--d-ink-2); }
.hw-item .grade { font-size: 12.5px; font-weight: 800; color: var(--d-ink-2); }
.hw-item.exam .grade { color: #E8E3DA; }
.hw-item .grade b { font-family: var(--d-font-mono); color: var(--c); }
.hw-item .links { display: flex; flex-direction: column; gap: 6px; }
.hw-item .links a { font-size: 12.5px; font-weight: 800; color: var(--c); border: 1px solid currentColor; border-radius: 9px; padding: 5px 10px; text-decoration: none; text-align: center; }
.hw-item .links a:hover { background: var(--c); color: #fff; border-color: var(--c); }
.hw-item .links span { font-size: 12.5px; font-weight: 700; color: var(--d-ink-3); border: 1px dashed var(--d-line); border-radius: 9px; padding: 5px 10px; text-align: center; }

/* ---------- 計分對照 ---------- */
.map-table td:first-child { white-space: nowrap; }
.map-table .pill { display: inline-block; font-size: 11.5px; font-weight: 800; border-radius: 99px; padding: 2px 9px; color: #fff; background: var(--c); margin: 1px 0; }

/* ---------- 繳交規範 ---------- */
.rule-list { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.rule-list div { background: #fff; border: 1px solid var(--d-line); border-radius: 16px; padding: 16px; }
.rule-list i { font-size: 22px; color: var(--d-brand); }
.rule-list b { display: block; font: 900 15.5px/1.4 var(--d-font-display); margin-top: 6px; }
.rule-list p { font-size: 13.5px !important; margin: 6px 0 0 !important; line-height: 1.75 !important; }
.fname { background: #fff; border: 1px solid var(--d-line); border-radius: 18px; padding: 18px; }
.fname .row2 { display: grid; grid-template-columns: 1fr 1.4fr 1.4fr; gap: 10px; }
.fname label { display: block; font-size: 12.5px; font-weight: 800; color: var(--d-ink); margin-bottom: 4px; }
.fname select, .fname input { width: 100%; border: 1px solid var(--d-line); border-radius: 10px; padding: 8px 10px; font-size: 14px; font-family: inherit; background: #fff; color: var(--d-ink); }
.fname .out { margin-top: 12px; display: flex; align-items: center; gap: 10px; background: #1F1E1B; color: #F4EFE6; border-radius: 12px; padding: 10px 12px; font: 600 14px var(--d-font-mono); word-break: break-all; }
.fname .out span { flex: 1; }
.fname .out button { flex: 0 0 auto; appearance: none; border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.08); color: #fff; border-radius: 8px; padding: 4px 10px; font-size: 12px; font-weight: 700; cursor: pointer; }
.fname .out button.ok { background: var(--d-good); border-color: var(--d-good); }

/* ---------- 資源卡 ---------- */
.res-group { margin-top: 30px; }
.res-group h3 { display: flex; align-items: center; gap: 10px; font: 900 20px var(--d-font-display); margin: 0 0 12px; }
.res-group h3 i { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 16px; color: #fff; background: var(--gc); }
.res-group h3 small { font: 700 12px var(--d-font-mono); color: var(--d-ink-3); }
.res-group.is-hidden { display: none; }
.res-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.res { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--d-line); border-radius: 16px; padding: 14px 16px; transition: transform .25s var(--d-ease), box-shadow .25s; }
.res:hover { transform: translateY(-3px); box-shadow: 0 18px 30px -24px rgba(31,30,27,.55); }
.res.is-hidden { display: none; }
.res .top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.res h4 { font: 900 16px/1.35 var(--d-font-display); margin: 0; }
.res h4 a { color: var(--d-ink); text-decoration: none; }
.res h4 a:hover { color: var(--d-brand-strong); }
.res .url { display: block; font: 600 11px var(--d-font-mono); color: var(--d-ink-3); margin-top: 2px; word-break: break-all; }
.res .kind { flex: 0 0 auto; font-size: 11px; font-weight: 800; border-radius: 6px; padding: 2px 7px; background: #F3EFE8; color: var(--d-ink-2); white-space: nowrap; }
.res p { font-size: 13.5px !important; margin: 8px 0 0 !important; line-height: 1.7 !important; }
.res .use { font-size: 12.5px; color: var(--d-ink-2); margin-top: 6px; line-height: 1.65; }
.res .use b { color: var(--d-ink); }
.res .meta { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; padding-top: 10px; }
.res .meta span, .res .meta a { font-size: 11.5px; font-weight: 800; border-radius: 6px; padding: 2px 8px; text-decoration: none; }
.res .meta .free { background: #E3F2EA; color: #2B8A5E; }
.res .meta .limit { background: #FFF6DE; color: #8A6100; }
.res .meta .u { background: var(--d-brand-soft); color: var(--d-brand-strong); }
.res .meta .u:hover { background: var(--d-brand); color: #fff; }
.res.dead { background: #FAFAF8; }
.res.dead h4, .res.dead h4 a { color: var(--d-ink-3); text-decoration: line-through; }
.no-result { display: none; text-align: center; padding: 40px 0; color: var(--d-ink-3); }

@media (max-width: 991px) {
	.hub-intro { grid-template-columns: 1fr; }
	.hw-item { grid-template-columns: 64px minmax(0,1fr); }
	.hw-item .side { grid-column: 2; flex-direction: row; flex-wrap: wrap; align-items: center; }
	.hw-item .links { flex-direction: row; flex-wrap: wrap; }
	.res-grid, .rule-list { grid-template-columns: 1fr 1fr; }
	.fname .row2 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
	.hw-item { grid-template-columns: 1fr; gap: 10px; padding: 14px 14px 14px 18px; }
	.hw-item .side { grid-column: 1; }
	.hw-item .no { width: 52px; height: 52px; font-size: 17px; }
	.res-grid, .rule-list { grid-template-columns: 1fr; }
	.hub-toolbar { position: static; }
	.hub-search { flex: 1 1 100%; }
	.hub-card .stats { grid-template-columns: repeat(3, minmax(0,1fr)); }
}