/* 🏫 校园中枢 · 移动优先
   白底容器必须显式写 color（style.css 的 body 是浅色文字，继承会看不见）。 */

.hub-wrap { max-width: 860px; margin: 0 auto; padding-bottom: 84px; }

.hub-card {
  background: #12151d;
  color: #e8ecf5;
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 14px;
  padding: 14px 16px;
  margin: 10px 0;
}

.hub-muted { color: rgba(232,236,245,.62); font-size: 13px; }
.hub-hint { color: rgba(232,236,245,.75); font-size: 13px; }

/* ---------- 顶部身份条 ---------- */
.hub-idbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 10px 14px; margin: 8px 0 4px;
  background: rgba(100,126,234,.10); border: 1px solid rgba(100,126,234,.22);
  border-radius: 12px; font-size: 13px; color: #cfd7ea;
}
.hub-idbar b { color: #fff; font-weight: 600; }

/* ---------- 页签 ---------- */
.hub-tabs {
  display: flex; gap: 6px; overflow-x: auto; padding: 6px 0 2px;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.hub-tabs::-webkit-scrollbar { display: none; }
.hub-tab {
  flex: none; border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05); color: #cfd7ea;
  border-radius: 999px; padding: 9px 16px; font: inherit; font-size: 14px;
  cursor: pointer; min-height: 40px;
}
.hub-tab[aria-selected="true"] { background: #3b6fd4; border-color: #3b6fd4; color: #fff; }
.hub-tab .hub-tab-n {
  display: inline-block; margin-left: 6px; padding: 0 7px; border-radius: 999px;
  background: rgba(255,255,255,.16); font-size: 12px;
}

/* ---------- 截止日期：整个界面的主角 ---------- */
.hub-due { border-radius: 12px; padding: 10px 13px; margin: 9px 0; font-size: 14px; line-height: 1.5; }
.hub-due .hub-due-label { font-size: 13px; opacity: .85; }
.hub-due .hub-due-time { display: block; font-size: 21px; font-weight: 800; letter-spacing: .3px; margin: 3px 0 1px; }
.hub-due .hub-due-left { font-size: 15px; font-weight: 700; }

.hub-due.d-today { background: rgba(239,68,68,.16); border: 1px solid rgba(239,68,68,.55); color: #ffd9d9; }
.hub-due.d-soon  { background: rgba(249,115,22,.14); border: 1px solid rgba(249,115,22,.5); color: #ffe4cc; }
.hub-due.d-week  { background: rgba(250,204,21,.12); border: 1px solid rgba(250,204,21,.42); color: #fff3cc; }
.hub-due.d-far   { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); color: #dbe2ef; }
.hub-due.d-none  { background: rgba(255,255,255,.03); border: 1px dashed rgba(255,255,255,.14); color: rgba(232,236,245,.6); }
.hub-due.d-expired { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.1); color: rgba(232,236,245,.5); }
.hub-due.d-today .hub-due-time, .hub-due.d-soon .hub-due-time { color: #fff; }

/* ---------- 信息条目 ---------- */
.hub-item {
  border: 1px solid rgba(255,255,255,.07); border-radius: 14px;
  padding: 13px 15px; margin: 9px 0; background: #12151d; color: #e8ecf5;
  cursor: pointer;
}
.hub-item:active { border-color: rgba(100,126,234,.5); }
.hub-item h3 { margin: 0 0 6px; font-size: 16px; line-height: 1.45; font-weight: 650; }
.hub-item .hub-sum { font-size: 13.5px; color: rgba(232,236,245,.72); line-height: 1.6; }
.hub-meta { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.hub-badge {
  display: inline-block; font-size: 12px; border-radius: 999px;
  padding: 2px 9px; background: rgba(255,255,255,.08); color: #cfd7ea;
}
.hub-badge.t-A { background: rgba(34,197,94,.18); color: #9ff0bb; }
.hub-badge.t-B { background: rgba(96,165,250,.16); color: #bcd8ff; }
.hub-badge.t-C { background: rgba(255,255,255,.08); color: #aab3c4; }
.hub-badge.imp-3 { background: rgba(239,68,68,.18); color: #ffc9c9; }
.hub-badge.imp-2 { background: rgba(250,204,21,.16); color: #ffe9a8; }
.hub-badge.rel { background: rgba(167,139,250,.16); color: #ddd0ff; }

.hub-empty { color: rgba(232,236,245,.55); font-size: 14px; padding: 18px 4px; text-align: center; }

/* ---------- 按钮 ---------- */
.hub-btn {
  border: 1px solid #3b6fd4; background: #3b6fd4; color: #fff;
  border-radius: 10px; padding: 10px 16px; font: inherit; font-size: 15px;
  cursor: pointer; min-height: 42px;
}
.hub-btn:disabled { opacity: .5; }
.hub-btn.ghost { background: transparent; color: #bcd8ff; border-color: rgba(255,255,255,.18); }
.hub-btn.ok { background: #1d8b4a; border-color: #1d8b4a; }
.hub-btn.danger { background: #c0392b; border-color: #c0392b; }
.hub-btn.big { width: 100%; font-size: 17px; padding: 14px; }

.hub-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* ---------- 底部固定「快速添加」 ---------- */
.hub-fab {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(7,9,18,0), rgba(7,9,18,.96) 40%);
}
.hub-fab .hub-btn {
  max-width: 860px; margin: 0 auto; display: block;
  box-shadow: 0 6px 22px rgba(59,111,212,.42);
}

/* ---------- 添加面板（全屏 sheet） ---------- */
.hub-sheet {
  position: fixed; inset: 0; z-index: 80; background: #0b0e16;
  overflow: auto; color: #e8ecf5;
  padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
}
.hub-sheet-inner { max-width: 720px; margin: 0 auto; }
.hub-sheet-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.hub-sheet-head h2 { margin: 0; font-size: 19px; }

.hub-input, .hub-textarea, .hub-select {
  width: 100%; box-sizing: border-box; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16); border-radius: 10px;
  padding: 11px 12px; font: inherit; font-size: 15px; color: #e8ecf5;
}
.hub-textarea { min-height: 150px; resize: vertical; line-height: 1.65; }
.hub-field { margin: 10px 0; }
.hub-field > label { display: block; font-size: 13px; color: rgba(232,236,245,.7); margin-bottom: 5px; }
.hub-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 560px) { .hub-grid2 { grid-template-columns: 1fr; } }

.hub-date-row {
  display: grid; grid-template-columns: 110px 1fr 90px 36px; gap: 8px; align-items: center;
  margin: 8px 0;
}
@media (max-width: 560px) {
  .hub-date-row { grid-template-columns: 1fr 1fr; }
  .hub-date-row .hub-date-raw { grid-column: 1 / -1; }
}

.hub-check { width: 22px; height: 22px; flex: none; accent-color: #3b6fd4; cursor: pointer; }

.hub-todo-row {
  display: flex; gap: 12px; align-items: flex-start;
  border: 1px solid rgba(255,255,255,.07); border-radius: 12px;
  padding: 12px 13px; margin: 8px 0; background: #12151d;
}
.hub-todo-row.done { opacity: .5; }
.hub-todo-main { flex: 1; min-width: 0; }
.hub-todo-main h4 { margin: 0 0 4px; font-size: 15px; font-weight: 620; line-height: 1.45; }

.hub-detail-dates { list-style: none; padding: 0; margin: 10px 0; }
.hub-detail-dates li { padding: 8px 0; border-bottom: 1px dashed rgba(255,255,255,.1); font-size: 14px; }

.hub-src { font-size: 13.5px; color: #bcd8ff; padding: 5px 0; word-break: break-all; }
.hub-src a { color: #bcd8ff; }

.hub-modal {
  position: fixed; inset: 0; z-index: 90; background: rgba(5,7,12,.78);
  overflow: auto; padding: 20px 14px calc(30px + env(safe-area-inset-bottom));
}
.hub-modal-body {
  background: #12151d; color: #e8ecf5; border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px; max-width: 720px; margin: 0 auto; padding: 18px 18px 22px;
}

.hub-flash-ok { background: rgba(34,197,94,.14); border: 1px solid rgba(34,197,94,.4);
  color: #b6f0cb; border-radius: 10px; padding: 10px 13px; font-size: 13.5px; margin: 8px 0; }
.hub-flash-err { background: rgba(239,68,68,.14); border: 1px solid rgba(239,68,68,.45);
  color: #ffc9c9; border-radius: 10px; padding: 10px 13px; font-size: 13.5px; margin: 8px 0; }

.hub-hidden { display: none !important; }

/* 桌面端：卡片稍微紧凑一点就够，保持同一套结构 */
@media (min-width: 900px) {
  .hub-wrap { padding-bottom: 96px; }
  .hub-item h3 { font-size: 17px; }
}