/* =====================================================================
   研行 · 学业跟踪 —— 日程（Schedule）
   · 仅作用于 data-page="schedule" 页面（.page-schedule）与新增的 .sch-* 类
   · 复用 tokens.css / style.css 的设计令牌与既有组件类（.section/.btn/.cal/.cols…）
   · 不修改任何共享样式；.sch-grid 的 48px 每小时须与 app.js 的 SCH_HOUR_H 保持一致
   ===================================================================== */

.page-schedule .cols{margin-top:32px}

/* ---------- 顶部：月历 + 当日摘要 ---------- */
/* 摘要卡与月历等高（stretch），并把操作推到底部，消除右侧与下方的空白 */
.sch-top{display:flex;flex-wrap:wrap;gap:20px 24px;align-items:stretch}
.sch-cal-card{flex:0 1 460px;min-width:320px}
.sch-nav{display:inline-flex;flex-wrap:wrap;gap:8px}
.sch-cal-section .section-head{justify-content:flex-start;gap:20px}

.sch-dayinfo{display:flex;flex-direction:column;gap:16px;min-width:0;flex:1 1 420px;padding:22px 24px;
  border-radius:var(--radius-lg);background:var(--color-bg-4)}
.sch-dayinfo-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.sch-day-date{font:600 24px/32px var(--font-body);color:var(--color-text-1);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.sch-day-week{font:500 12px/18px var(--font-body);color:var(--color-text-2);background:#fff;
  border:1px solid var(--divider);border-radius:9999px;padding:2px 10px}
.sch-day-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin:0;
  padding-top:16px;border-top:1px solid var(--divider)}
.sch-fact{display:flex;flex-direction:column;gap:2px;min-width:0;padding-left:18px;border-left:1px solid var(--divider)}
.sch-fact:first-child{padding-left:0;border-left:0}
.sch-fact b{font:600 22px/30px var(--font-body);color:var(--color-text-1);font-variant-numeric:tabular-nums}
.sch-fact span{font:400 12px/20px var(--font-body);color:var(--color-text-3)}
.sch-dayinfo-actions{margin-top:auto}
.sch-dayinfo .hintline{margin-top:0}

/* ---------- 时间轴 ---------- */
.sch-toolbar{display:inline-flex;align-items:center;gap:8px}
.sch-toolbar-label{font:400 12px/20px var(--font-body);color:var(--color-text-3)}
.sch-kind-select{width:auto;min-width:132px;max-width:168px;height:32px;padding:0 8px;font-size:12px}

.sch-budget{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.sch-budget-head{display:flex;align-items:baseline;gap:6px}
.sch-budget-head b{font:600 14px/22px var(--font-body);color:var(--color-text-1);font-variant-numeric:tabular-nums}
.sch-budget-head span{font:400 12px/20px var(--font-body);color:var(--color-text-3)}
.sch-budget-track{height:8px;border-radius:9999px;background:var(--color-bg-5);overflow:hidden}
.sch-budget-fill{height:100%;width:0;border-radius:9999px;background:var(--primary-6);transition:width .24s ease}
.sch-budget-fill.is-over{background:var(--color-warning)}

.sch-timeline-wrap{display:flex;align-items:flex-start;padding:10px 4px 10px 0;max-height:72vh;overflow-y:auto;overflow-x:hidden;
  border:1px solid var(--color-border-2);border-radius:var(--radius-lg);background:var(--color-bg-1)}
.sch-axis{flex:none;width:52px}
.sch-axis-hour{position:relative;height:40px}
.sch-axis-hour span{position:absolute;top:0;right:10px;transform:translateY(-50%);
  font:400 11px/1 var(--font-mono);color:var(--color-text-3);font-variant-numeric:tabular-nums}

.sch-grid{position:relative;flex:1;min-width:0;height:960px;cursor:crosshair;user-select:none;
  background-image:
    linear-gradient(to bottom,var(--color-border-3) 1px,transparent 1px),
    linear-gradient(to bottom,var(--color-bg-5) 1px,transparent 1px);
  background-size:100% 40px,100% 20px}

/* ---------- 时间块 ---------- */
.sch-block{position:absolute;left:10px;right:10px;min-height:22px;padding:3px 20px 3px 8px;
  border-radius:var(--radius-sm);border-left:3px solid var(--sch-c,var(--primary-6));
  background:var(--sch-bg,var(--color-bg-4));color:var(--color-text-1);
  box-shadow:var(--shadow-1);overflow:hidden;cursor:grab;user-select:none;touch-action:none;
  transition:box-shadow .16s,opacity .16s}
.sch-block:hover{box-shadow:var(--shadow-2)}
.sch-block:focus-visible{outline:2px solid var(--primary-6);outline-offset:1px}
.sch-block.is-dragging{cursor:grabbing;box-shadow:var(--shadow-3);z-index:6;opacity:.92}
.sch-block.is-done{opacity:.7}
.sch-block.is-skip{opacity:.45}
.sch-block.is-done .sch-block-title,.sch-block.is-skip .sch-block-title{text-decoration:line-through}
.sch-block-draft{z-index:7;min-height:30px;overflow:visible;padding-left:8px;border-left-style:dashed;background:var(--color-primary-bg);box-shadow:var(--shadow-2)}

.sch-block-body{min-width:0}
.sch-block-title{font:500 12px/16px var(--font-body);color:var(--color-text-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sch-block-meta{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-top:1px;font:400 10px/14px var(--font-body);color:var(--color-text-3)}
.sch-block-time{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.sch-status-plan{color:var(--color-text-3)}
.sch-status-done{color:var(--color-success)}
.sch-status-skip{color:var(--color-text-4)}

.sch-resize{position:absolute;left:0;right:0;height:6px;z-index:3;cursor:ns-resize}
.sch-resize-top{top:0}
.sch-resize-bottom{bottom:0}
.sch-resize:hover{background:rgba(22,100,255,.18)}

.sch-del{position:absolute;top:1px;right:1px;width:18px;height:18px;display:grid;place-items:center;
  border-radius:var(--radius-sm);color:var(--color-text-3);font-size:14px;line-height:1;opacity:0;
  transition:opacity .16s,background .16s,color .16s}
.sch-block:hover .sch-del,.sch-block:focus-within .sch-del{opacity:1}
.sch-del:hover{background:var(--color-tag-danger-bg);color:var(--color-danger)}

.sch-input{width:100%;height:22px;min-height:22px;padding:0 4px;font:500 12px/20px var(--font-body);
  border:1px solid var(--primary-6);border-radius:var(--radius-sm);background:#fff}

.sch-ghost{position:absolute;left:10px;right:10px;display:grid;place-items:center;pointer-events:none;
  border:1px dashed var(--primary-6);border-radius:var(--radius-sm);background:var(--primary-2);
  color:var(--primary-6);font:500 11px/1 var(--font-mono)}

.sch-now{position:absolute;left:0;right:0;height:0;z-index:4;border-top:1.5px solid var(--color-danger);pointer-events:none}
.sch-now-dot{position:absolute;left:-4px;top:-4px;width:7px;height:7px;border-radius:50%;background:var(--color-danger)}
.sch-now-label{position:absolute;right:2px;top:-9px;padding:1px 5px;border-radius:9999px;
  background:var(--color-danger);color:#fff;font:500 10px/14px var(--font-mono)}

/* ---------- 类型配色（时间块 + 图例共用） ---------- */
.sch-kind-study{--sch-c:var(--primary-6);--sch-bg:var(--primary-2)}
.sch-kind-course{--sch-c:var(--violet-6);--sch-bg:var(--violet-2)}
.sch-kind-life{--sch-c:var(--success-6);--sch-bg:var(--success-2)}
.sch-kind-commute{--sch-c:var(--warning-6);--sch-bg:var(--warning-2)}
.sch-kind-other{--sch-c:var(--color-text-2);--sch-bg:var(--color-bg-5)}
.sch-kind-none{--sch-c:var(--color-text-4);--sch-bg:var(--color-bg-4)}

/* ---------- 侧栏：未排时间 + 图例 ---------- */
.sch-untimed{display:flex;flex-direction:column;gap:8px}
.sch-untimed-item{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;border-radius:var(--radius-sm);background:var(--color-bg-4)}
.sch-untimed-main{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-width:0}
.sch-untimed-title{font:500 13px/20px var(--font-body);color:var(--color-text-1);overflow-wrap:anywhere}

.sch-legend{display:flex;flex-wrap:wrap;gap:10px 16px;margin:4px 0 12px}
.sch-legend-item{display:inline-flex;align-items:center;gap:6px;font:400 12px/20px var(--font-body);color:var(--color-text-2)}
.sch-swatch{flex:none;width:14px;height:14px;border-radius:3px;
  background:var(--sch-bg,var(--color-bg-4));box-shadow:inset 0 0 0 2px var(--sch-c,var(--primary-6))}
.sch-status-dot{flex:none;width:8px;height:8px;border-radius:50%;background:currentColor}

/* ---------- 预算条：可用时间设置入口 ---------- */
.sch-budget-set{margin-left:auto;flex:none;padding:0 4px;font-size:12px;line-height:20px}

/* ---------- 时间轴空状态 ---------- */
.sch-empty{position:absolute;left:24px;right:24px;top:170px;max-width:320px;margin:0 auto;text-align:center;
  color:var(--color-text-3);font:400 12px/20px var(--font-body);pointer-events:none}
.sch-empty::before{content:"";display:block;width:2px;height:28px;margin:0 auto 10px;border-radius:2px;background:var(--color-border-3)}

/* ---------- 时间块：转学习记录 ---------- */
.sch-block.has-convert .sch-block-body{padding-right:64px}
.sch-convert{position:absolute;right:6px;top:50%;transform:translateY(-50%);z-index:2;
  height:20px;padding:0 9px;border-radius:var(--radius-full);
  border:1px solid var(--color-border-3);background:rgba(255,255,255,.9);color:var(--color-text-2);
  font:500 10px/18px var(--font-body);white-space:nowrap;opacity:.68;
  transition:opacity .16s,color .16s,border-color .16s,background .16s}
.sch-block:hover .sch-convert,.sch-block:focus-within .sch-convert{opacity:1}
.sch-convert:hover{color:var(--primary-6);border-color:var(--primary-6);background:#fff}
.sch-convert:focus-visible{outline:2px solid var(--primary-6);outline-offset:1px}

/* ---------- 计划任务列表（可拖入时间轴） ---------- */
.sch-task-list{display:flex;flex-direction:column;gap:8px}
.sch-task-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);
  background:var(--color-bg-4);cursor:grab;user-select:none;touch-action:none;
  transition:background .16s,box-shadow .16s,opacity .16s}
.sch-task-item:hover{background:var(--color-bg-5);box-shadow:var(--shadow-1)}
.sch-task-item:focus-visible{outline:2px solid var(--primary-6);outline-offset:1px}
.sch-task-item.is-dragging{opacity:.45;cursor:grabbing}
.sch-grip{flex:none;color:var(--color-text-4);font:400 13px/1 var(--font-mono);cursor:grab}
.sch-task-main{flex:1;min-width:0}
.sch-task-title{font:500 13px/20px var(--font-body);color:var(--color-text-1);overflow-wrap:anywhere}
.sch-task-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.sch-task-ghost{position:fixed;z-index:60;padding:6px 10px;border-radius:var(--radius-sm);
  background:var(--primary-6);color:#fff;font:500 12px/16px var(--font-body);box-shadow:var(--shadow-3);
  pointer-events:none;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sch-grid.is-drop-target{background-color:var(--primary-2);box-shadow:inset 0 0 0 1.5px var(--primary-6)}

/* ---------- 模板列表 ---------- */
.sch-tpl-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.sch-tpl-item{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--color-bg-4)}
.sch-tpl-main{flex:1;min-width:0}
.sch-tpl-title{font:500 13px/20px var(--font-body);color:var(--color-text-1);overflow-wrap:anywhere}
.sch-tpl-meta{font:400 11px/18px var(--font-body);color:var(--color-text-3);font-variant-numeric:tabular-nums}

/* ---------- 右栏底部留白（避开右下角悬浮计时器） ---------- */
.sch-side{padding-bottom:120px}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .sch-top{grid-template-columns:1fr;gap:16px}
  .sch-timeline-wrap{max-height:none}
}
@media(max-width:640px){
  .sch-axis{width:44px}
  .sch-toolbar{flex-wrap:wrap;justify-content:flex-end;row-gap:6px}
  .sch-convert{position:static;transform:none;display:block;margin-top:4px;opacity:1}
  .sch-block.has-convert .sch-block-body{padding-right:0}
  .sch-side{padding-bottom:96px}
}