:root {
  --bg: #f7f4fa;
  --card: #ffffff;
  --ink: #2b2438;
  --sub: #837a92;
  --line: #ece5f1;
  --soft: #faf7fd;
  --brand: #d94f96;
  --brand2: #8b5cf6;
  --grad: linear-gradient(135deg, #f062a4, #8b5cf6);
  --shadow: 0 2px 12px rgba(120, 80, 160, .07);
  --danger: #d64550;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.deco { position: fixed; border-radius: 50%; filter: blur(90px); opacity: .14; pointer-events: none; z-index: 0; }
.d1 { width: 420px; height: 420px; background: #f062a4; top: -160px; right: -120px; }
.d2 { width: 380px; height: 380px; background: #8b5cf6; bottom: -160px; left: -140px; }

.wrap { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 28px 16px 110px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 18px; box-shadow: var(--shadow);
}

/* 登录 */
.login { max-width: 360px; margin: 9vh auto 0; text-align: center; padding: 30px 26px 26px; }
.login .logo {
  width: 58px; height: 58px; margin: 0 auto 12px; border-radius: 50%;
  background: var(--grad); display: grid; place-items: center; font-size: 27px;
  box-shadow: 0 6px 16px rgba(217, 79, 150, .28);
}
.login h1 { font-size: 18px; margin: 0; }
.login .sub { color: var(--sub); font-size: 13px; margin: 6px 0 18px; }
.login input {
  width: 100%; padding: 11px 14px; border: 1.5px solid var(--line); border-radius: 12px;
  font-size: 14.5px; font-family: inherit; outline: none; background: var(--soft);
  transition: border-color .15s ease;
}
.login input:focus { border-color: var(--brand); background: #fff; }
.login .btn { width: 100%; margin-top: 12px; }
.err { color: var(--danger); font-size: 12.5px; margin: 12px 0 0; }

/* 按钮 */
.btn {
  appearance: none; border: 0; cursor: pointer; font-family: inherit;
  border-radius: 12px; padding: 11px 18px; font-size: 14px; font-weight: 650;
  transition: filter .15s ease, background .15s ease;
}
.btn.primary { background: var(--grad); color: #fff; box-shadow: 0 5px 14px rgba(217, 79, 150, .30); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.primary:disabled { opacity: .55; cursor: default; filter: none; }
.btn.ghost { background: var(--card); color: var(--ink); border: 1.5px solid var(--line); }
.btn.ghost:hover { border-color: #e3c6da; color: var(--brand); }
.btn.small { padding: 7px 13px; font-size: 12.5px; border-radius: 10px; }

/* 顶栏 */
.top { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.t-left { display: flex; align-items: center; gap: 9px; font-size: 16px; }
.mini-logo {
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
  display: grid; place-items: center; font-size: 16px;
}
.t-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.dirty { font-size: 12px; color: var(--danger); background: #fdeeee; border-radius: 999px; padding: 4px 11px; }

/* 校区 tabs */
.tabs {
  margin-bottom: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 6px;
  box-shadow: var(--shadow);
}
.tab {
  appearance: none; border: 0; background: transparent; cursor: pointer;
  border-radius: 11px; padding: 9px 10px; font-family: inherit; font-size: 14.5px; font-weight: 700;
  color: var(--ink); transition: background .15s ease;
}
.tab.active { background: var(--grad); color: #fff; box-shadow: 0 4px 12px rgba(217, 79, 150, .30); }
.tab:not(.active):hover { background: var(--soft); }

/* 公告编辑 */
.notice-box { margin-bottom: 14px; }
.notice-box label { display: block; font-size: 12.5px; font-weight: 650; color: var(--sub); margin-bottom: 6px; }
.notice-box textarea {
  width: 100%; min-height: 66px; resize: vertical;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--soft);
  padding: 10px 13px; font-size: 13.5px; font-family: inherit; line-height: 1.6; outline: none;
}
.notice-box textarea:focus { border-color: var(--brand); background: #fff; }

/* 歌单块 */
.pblock {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 14px; margin-top: 12px; box-shadow: var(--shadow);
}
.pb-head { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.pb-head input[type="date"] {
  border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 10px;
  font-family: inherit; font-size: 13.5px; background: var(--soft); color: var(--ink); outline: none;
}
.pb-head input.period { flex: 1; min-width: 120px; border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 10px; font-family: inherit; font-size: 13.5px; background: var(--soft); color: var(--ink); outline: none; }
.pb-head input:focus { border-color: var(--brand); background: #fff; }

.note-in {
  width: 100%; margin-top: 8px; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 8px 10px; font-family: inherit; font-size: 12.5px; background: var(--soft);
  color: var(--ink); outline: none;
}
.note-in:focus { border-color: var(--brand); background: #fff; }

.op {
  appearance: none; border: 1.5px solid var(--line); background: var(--card); cursor: pointer;
  width: 32px; height: 32px; border-radius: 9px; font-size: 13px; color: var(--sub);
  display: grid; place-items: center; flex: none; font-family: inherit;
  transition: color .12s ease, border-color .12s ease, background .12s ease;
}
.op:hover { color: var(--brand); border-color: #e3c6da; background: var(--soft); }
.op.danger:hover { color: #fff; background: var(--danger); border-color: var(--danger); }

.rows { margin-top: 11px; display: flex; flex-direction: column; gap: 7px; }
.srow { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, .85fr) auto; gap: 6px; align-items: center; }
.srow input {
  width: 100%; border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 10px;
  font-family: inherit; font-size: 13.5px; background: var(--soft); color: var(--ink); outline: none;
  min-width: 0;
}
.srow input:focus { border-color: var(--brand); background: #fff; }
.srow .ops { display: flex; gap: 3px; }
.srow .op { width: 30px; height: 30px; font-size: 12px; }

.add-song {
  appearance: none; border: 1.5px dashed var(--line); background: transparent; cursor: pointer;
  border-radius: 10px; padding: 8px; width: 100%; margin-top: 9px;
  font-family: inherit; font-size: 12.5px; color: var(--sub); font-weight: 600;
}
.add-song:hover { color: var(--brand); border-color: #e3c6da; background: var(--soft); }

.add-pl-wrap { margin-top: 14px; }
.add-pl-wrap .btn { width: 100%; border-style: dashed; }

/* 保存栏 */
.savebar {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 16px; width: min(688px, calc(100% - 32px));
  display: flex; gap: 9px;
  background: rgba(255, 255, 255, .88); backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: 16px; padding: 10px;
  box-shadow: 0 8px 24px rgba(80, 50, 110, .14);
}
.savebar .btn.primary { flex: 1; }

/* 提示 */
.toast {
  position: fixed; left: 50%; bottom: 86px; transform: translateX(-50%);
  background: #2f2a3d; color: #fff; font-size: 13px;
  padding: 9px 18px; border-radius: 999px; box-shadow: 0 6px 20px rgba(0, 0, 0, .22);
  z-index: 20; white-space: nowrap;
}

@media (max-width: 560px) {
  .wrap { padding: 20px 12px 120px; }
  .srow { grid-template-columns: 1fr auto; }
  .srow input { grid-column: 1 / 2; }
  .srow input.t { grid-column: 1 / -1; }
  .srow .ops { grid-column: 2 / 3; grid-row: 1 / span 3; flex-direction: column; }
  .pb-head input[type="date"] { flex: 1; }
}