/* ============================================================
   一年级入学规划 + 英语点读 · 基础层：变量 / 主题 / 布局 / 通用组件
   改动配色只动本文件顶部的 CSS 变量
   ============================================================ */


/* ========== 一年级入学规划 · 样式 ========== */

:root {
  --primary: #E86A33;
  --primary-soft: #FFF1EA;
  --green: #2FA37C;
  --green-soft: #EAF7F2;
  --blue: #3B82F6;
  --blue-soft: #EAF2FE;
  --purple: #8B5CF6;
  --purple-soft: #F3EEFE;
  --amber: #F59E0B;
  --amber-soft: #FEF6E7;
  --pink: #EC4899;
  --pink-soft: #FDEDF6;
  --cyan: #0891B2;
  --cyan-soft: #E8F6F9;
  --red: #EF4444;
  --red-soft: #FEECEC;

  --bg: #F5F6F8;
  --card: #FFFFFF;
  --text: #1F2430;
  --text-2: #4B5563;
  --muted: #8A93A3;
  --border: #E8EAEF;
  --border-2: #F0F2F5;

  /* 语义化变量：深色主题只需覆盖下面这些 */
  --surface: #FFFFFF;        /* 输入框、按钮等内嵌底色 */
  --border-strong: #C9CFD9;  /* 复选框、圆点等强调边框 */
  --note-fg: #8A5A08;
  --note-border: #F6DFB4;
  --note-blue-fg: #1E4E9C;
  --note-blue-border: #CBDEF9;
  --toast-bg: #1F2430;
  --toast-fg: #FFFFFF;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 4px 16px rgba(16,24,40,.06);
  --shadow-hover: 0 2px 4px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.09);
}

/* ---------- 深色主题 ---------- */
[data-theme="dark"] {
  --primary: #FF8A5C;
  --primary-soft: #3A2318;
  --green: #4FC39B;
  --green-soft: #14312A;
  --blue: #6BA6FF;
  --blue-soft: #15273E;
  --purple: #A98BF7;
  --purple-soft: #241D38;
  --amber: #FBBF24;
  --amber-soft: #382C12;
  --pink: #F472B6;
  --pink-soft: #3A1D2C;
  --cyan: #22D3EE;
  --cyan-soft: #0E2F37;
  --red: #F87171;
  --red-soft: #3A1B1B;

  --bg: #14161A;
  --card: #1C1F26;
  --text: #E8EAED;
  --text-2: #AFB5BF;
  --muted: #7C848F;
  --border: #2A2E37;
  --border-2: #22262E;

  --surface: #252932;
  --border-strong: #4A5160;
  --note-fg: #F5D08A;
  --note-border: #4A3C1C;
  --note-blue-fg: #A8C8FF;
  --note-blue-border: #23405F;
  --toast-bg: #E8EAED;
  --toast-fg: #14161A;

  --shadow: 0 1px 2px rgba(0,0,0,.30), 0 4px 16px rgba(0,0,0,.28);
  --shadow-hover: 0 2px 4px rgba(0,0,0,.36), 0 8px 24px rgba(0,0,0,.34);
}
/* 深色下：亮色底块上的文字改深色，保证对比度 */
[data-theme="dark"] .subj-head { color: #14161A; }
[data-theme="dark"] .hm-day.l4 { color: #14161A; }
[data-theme="dark"] .ms-item.done { border-color: #4A3C1C; }
[data-theme="dark"] .ms-item.done .dot::after { color: #14161A; }
[data-theme="dark"] .hm-day.l1 { background: #2C4438; }
[data-theme="dark"] .hm-day.l2 { background: #2F6B55; }
[data-theme="dark"] .hm-day.l3 { background: #3D9B78; }

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 224px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 22px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  cursor: pointer; font-size: 14px; color: var(--text-2);
  transition: all .16s; margin-bottom: 2px; user-select: none;
}
.nav-item:hover { background: var(--border-2); color: var(--text); }
.nav-item.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.nav-item .ic { font-size: 16px; width: 20px; text-align: center; }

.sidebar-foot {
  margin-top: 18px; padding: 12px; border-radius: var(--radius-sm);
  background: var(--border-2); font-size: 11.5px; color: var(--muted); line-height: 1.6;
}

.main { flex: 1; min-width: 0; padding: 26px 34px 80px; max-width: 1180px; }

/* ---------- 顶部 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; margin-bottom: 22px;
}
.topbar h2 { font-size: 22px; font-weight: 700; letter-spacing: -.3px; }
.topbar .sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

.day-badge {
  display: flex; align-items: center; gap: 14px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 18px; box-shadow: var(--shadow);
}
.day-badge .num { font-size: 30px; font-weight: 800; color: var(--primary); line-height: 1; }
.day-badge .lbl { font-size: 12px; color: var(--muted); }
.day-badge .right { border-left: 1px solid var(--border); padding-left: 14px; font-size: 12.5px; color: var(--text-2); }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card > h3 {
  font-size: 15.5px; font-weight: 700; margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.card > h3 .tag {
  font-size: 11px; font-weight: 600; padding: 2px 8px;
  border-radius: 20px; background: var(--primary-soft); color: var(--primary);
}
.hint { font-size: 12.5px; color: var(--muted); margin-bottom: 12px; }

.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 统计块 ---------- */
.stat {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow);
}
.stat .v { font-size: 26px; font-weight: 800; line-height: 1.2; letter-spacing: -.5px; }
.stat .k { font-size: 12.5px; color: var(--muted); margin-top: 2px; }

.note {
  background: var(--amber-soft); border: 1px solid var(--note-border); border-radius: var(--radius-sm);
  padding: 11px 14px; font-size: 12.8px; color: var(--note-fg); margin-bottom: 14px; line-height: 1.7;
}
.note.blue { background: var(--blue-soft); border-color: var(--note-blue-border); color: var(--note-blue-fg); }

.section { display: none; }
.section.active { display: block; animation: fade .28s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: var(--toast-bg); color: var(--toast-fg); padding: 10px 20px; border-radius: 22px;
  font-size: 13.5px; opacity: 0; transition: all .3s; z-index: 999; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

b, strong { font-weight: 700; color: var(--text); }