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

:root {
  --bg: #f4f6fc;
  --card: #ffffff;
  --ink: #1f2430;
  --ink-2: #6b7280;
  --line: #e4e8f3;
  --accent: #6c63ff;
  --accent-2: #9d7bff;
  --danger: #e8547a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  background-image: radial-gradient(1200px 500px at 15% -10%, #e8e4ff 0%, transparent 50%),
    radial-gradient(1000px 500px at 90% 0%, #dff1ff 0%, transparent 45%);
  color: var(--ink);
  min-height: 100vh;
}

#app { max-width: 1080px; margin: 0 auto; padding: 32px 20px 64px; }

/* ---- 顶部 ---- */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.brand h1 { font-size: 26px; letter-spacing: .5px; }
.brand h1 .dot { color: var(--accent); }
.brand p { color: var(--ink-2); font-size: 13px; margin-top: 4px; }
.btn {
  border: none; cursor: pointer; font-size: 14px; font-weight: 600;
  padding: 10px 18px; border-radius: 12px; transition: all .15s ease;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; box-shadow: 0 4px 14px rgba(108, 99, 255, .35);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(108, 99, 255, .45); }
.btn.ghost {
  background: #fff; color: var(--ink-2); border: 1px solid var(--line); box-shadow: none;
}
.btn.ghost:hover { color: var(--ink); }
.btn.danger { background: #fff; color: var(--danger); border: 1px solid #f5d3dd; box-shadow: none; }
.btn.danger:hover { background: #fff5f8; }

/* ---- 新建计划表单 ---- */
.add-form {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px; margin-bottom: 24px; display: flex; gap: 10px; flex-wrap: wrap;
  box-shadow: 0 4px 16px rgba(31, 36, 48, .05);
}
.add-form input {
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
  font-size: 14px; outline: none; background: #fafbff;
}
.add-form input:focus { border-color: var(--accent); }
.add-form .in-name { flex: 1; min-width: 160px; }
.add-form .in-icon { width: 64px; text-align: center; }

/* ---- 卡片网格 ---- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 20px; cursor: pointer; transition: all .18s ease;
  box-shadow: 0 4px 16px rgba(31, 36, 48, .05);
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(31, 36, 48, .12); }
.card .head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.card .icon {
  width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center;
  justify-content: center; font-size: 24px; flex-shrink: 0;
}
.card h3 { font-size: 16px; flex: 1; word-break: break-all; }
.card .desc { color: var(--ink-2); font-size: 12.5px; margin-bottom: 14px; min-height: 18px; }
.card .meta { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--ink-2); margin-bottom: 8px; }
.bar { height: 8px; background: #edf0f8; border-radius: 999px; overflow: hidden; }
.bar .fill { height: 100%; border-radius: 999px; transition: width .3s ease; }
.empty { text-align: center; color: var(--ink-2); padding: 60px 0; font-size: 14px; }

/* ---- 详情页 ---- */
.panel { max-width: 720px; margin: 0 auto; }
.back {
  display: inline-flex; align-items: center; gap: 6px; border: none; background: none;
  color: var(--ink-2); font-size: 14px; cursor: pointer; margin-bottom: 18px; padding: 4px 0;
}
.back:hover { color: var(--accent); }
.plan-head {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 24px; margin-bottom: 18px; box-shadow: 0 4px 16px rgba(31, 36, 48, .05);
}
.plan-head .top { display: flex; align-items: center; gap: 16px; }
.plan-head .icon {
  width: 54px; height: 54px; border-radius: 15px; display: flex; align-items: center;
  justify-content: center; font-size: 28px;
}
.plan-head h2 { flex: 1; font-size: 21px; word-break: break-all; }
.plan-head .ops { display: flex; gap: 8px; }
.plan-head .progress { margin-top: 16px; font-size: 13px; color: var(--ink-2); display: flex; justify-content: space-between; margin-bottom: 8px; }

/* ---- 任务列表 ---- */
.task-add { display: flex; gap: 10px; margin-bottom: 14px; }
.task-add input {
  flex: 1; border: 1px solid var(--line); border-radius: 10px; padding: 11px 14px;
  font-size: 14px; outline: none; background: #fff;
}
.task-add input:focus { border-color: var(--accent); }
.tasks { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.task {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 14px; display: flex; align-items: center; gap: 12px; transition: all .15s ease;
}
.task:hover { box-shadow: 0 3px 10px rgba(31, 36, 48, .08); }
.check {
  width: 24px; height: 24px; border-radius: 50%; border: 2px solid #ccd3e6;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  flex-shrink: 0; transition: all .15s ease; background: #fff; font-size: 13px; color: transparent;
}
.check:hover { border-color: var(--accent); }
.task.done .check {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent; color: #fff;
}
.task .text { flex: 1; font-size: 14.5px; word-break: break-all; transition: color .15s ease; }
.task.done .text { color: #aab0c0; text-decoration: line-through; }
.task .del {
  border: none; background: none; color: #c3c9d8; cursor: pointer; font-size: 15px;
  opacity: 0; transition: opacity .15s ease;
}
.task:hover .del { opacity: 1; }
.task .del:hover { color: var(--danger); }
.tip { color: var(--ink-2); font-size: 12.5px; margin-top: 14px; text-align: center; }

@media (max-width: 600px) {
  #app { padding: 20px 14px 48px; }
  .grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .card { padding: 14px; }
  .card h3 { font-size: 14.5px; }
  .plan-head .ops { flex-direction: column; }
}