/* 大圣数学 · 教务管理系统 —— 应用布局（沿用 Sprout 设计规范） */
html, body { margin: 0; height: 100%; }
body { background: var(--sprout-bg); font-family: var(--sprout-font-body); color: var(--sprout-text); }
#app { min-height: 100vh; }
a { color: var(--sprout-primary-deep); text-decoration: none; }
a:hover { opacity: .82; }

/* ---------- 登录 / 注册 ---------- */
.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 32px; }
.auth-card { width: min(940px, 100%); background: var(--sprout-card); border-radius: 24px; overflow: hidden; box-shadow: 0 40px 80px -30px rgba(20,32,27,.34); border: 1px solid var(--sprout-border); display: flex; min-height: 560px; }
.auth-hero { width: 44%; background: var(--sprout-primary-grad); color: #fff; padding: 52px 48px; display: flex; flex-direction: column; justify-content: center; gap: 20px; }
.auth-hero-logo { width: 74px; height: 74px; border-radius: 22px; background: rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 40px; font-weight: 800; font-family: var(--sprout-font-display); }
.auth-hero-title { font-family: var(--sprout-font-display); font-size: 34px; font-weight: 800; line-height: 1.2; }
.auth-hero-sub { font-size: 15px; opacity: .92; line-height: 1.7; max-width: 300px; }
.auth-hero-tags { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.auth-hero-tags span { background: rgba(255,255,255,.18); padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.auth-form { flex: 1; padding: 52px 56px; display: flex; flex-direction: column; justify-content: center; }
.auth-form h1 { font-family: var(--sprout-font-display); font-size: 26px; font-weight: 800; color: var(--sprout-ink); margin: 0 0 6px; }
.auth-form .muted { font-size: 13px; color: var(--sprout-muted); margin-bottom: 26px; }
.auth-fields { display: flex; flex-direction: column; gap: 16px; max-width: 400px; }
.auth-note { display: flex; gap: 10px; padding: 13px 15px; background: var(--sprout-primary-soft); border-radius: 12px; font-size: 12.5px; line-height: 1.6; color: var(--sprout-primary-deep); }
.auth-switch { font-size: 13px; color: var(--sprout-muted); text-align: center; }

/* ---------- 应用外壳 ---------- */
.shell { display: flex; min-height: 100vh; }
.side { width: 224px; background: var(--sprout-card); border-right: 1px solid var(--sprout-border); padding: 18px 12px; display: flex; flex-direction: column; gap: 3px; flex: none; position: sticky; top: 0; height: 100vh; }
.side-brand { display: flex; align-items: center; gap: 10px; padding: 2px 8px 16px; }
.side-logo { width: 38px; height: 38px; border-radius: 11px; background: var(--sprout-primary-grad); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 21px; font-weight: 800; font-family: var(--sprout-font-display); }
.side-cap { font-size: 10.5px; font-weight: 700; letter-spacing: 1px; color: var(--sprout-muted); padding: 8px 12px 4px; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 11px; padding: 10px 12px; border-radius: 11px; color: var(--sprout-muted); font-size: 13.5px; font-weight: 600; cursor: pointer; border: none; background: none; width: 100%; text-align: left; font-family: inherit; }
.nav:hover { background: var(--sprout-bg); color: var(--sprout-text); }
.nav.on { background: var(--sprout-primary-soft); color: var(--sprout-primary-deep); }
.nav svg { width: 18px; height: 18px; flex: none; }
.nav .badge { margin-left: auto; background: var(--sprout-error); color: #fff; font-size: 10px; font-weight: 800; min-width: 17px; height: 17px; border-radius: 9px; display: flex; align-items: center; justify-content: center; padding: 0 4px; }
.side-user { margin-top: auto; display: flex; align-items: center; gap: 10px; padding: 12px 8px 4px; border-top: 1px solid var(--sprout-border); }

.main { flex: 1; background: var(--sprout-bg); display: flex; flex-direction: column; min-width: 0; }
.topbar { min-height: 62px; border-bottom: 1px solid var(--sprout-border); background: var(--sprout-card); display: flex; align-items: center; padding: 0 26px; gap: 14px; position: sticky; top: 0; z-index: 20; }
.topbar-t { font-size: 17px; font-weight: 800; color: var(--sprout-ink); }
.topbar .sub { font-size: 12.5px; color: var(--sprout-muted); }
.content { padding: 24px 26px 96px; display: flex; flex-direction: column; gap: 20px; }
.nowrap { white-space: nowrap; }
.avatar { border-radius: 50%; background: var(--sprout-primary-grad); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; flex: none; font-family: var(--sprout-font-display); }

.tb-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.tb-user { display: flex; align-items: center; gap: 9px; padding: 5px 10px; border-radius: 12px; cursor: pointer; position: relative; }
.tb-user:hover, .tb-user.open { background: var(--sprout-bg); }
.tb-uname { display: flex; flex-direction: column; line-height: 1.25; font-size: 13px; font-weight: 700; color: var(--sprout-ink); text-align: left; }
.tb-uname span { font-size: 10.5px; font-weight: 500; color: var(--sprout-muted); }
.tb-menu { position: absolute; top: calc(100% + 12px); right: 0; width: 214px; background: var(--sprout-card); border: 1px solid var(--sprout-border); border-radius: 14px; box-shadow: var(--sprout-shadow-soft); padding: 7px; z-index: 30; text-align: left; }
.tb-mi { display: flex; align-items: center; gap: 11px; padding: 9px 11px; border-radius: 9px; font-size: 13px; font-weight: 600; color: var(--sprout-text); cursor: pointer; }
.tb-mi svg { width: 16px; height: 16px; color: var(--sprout-muted); flex: none; }
.tb-mi:hover { background: var(--sprout-primary-soft); color: var(--sprout-primary-deep); }
.tb-mi:hover svg { color: var(--sprout-primary-deep); }
.tb-mi.danger, .tb-mi.danger svg { color: var(--sprout-error); }
.tb-sep { height: 1px; background: var(--sprout-border); margin: 5px 8px; }

/* ---------- 卡片 / KPI / 面板 ---------- */
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.grad-card { background: var(--sprout-primary-grad); border-radius: var(--sprout-radius-md); padding: 22px; color: #fff; box-shadow: var(--sprout-shadow-clay); }
.kpi-card { flex: 1; min-width: 150px; background: var(--sprout-card); border: 1px solid var(--sprout-border); border-radius: var(--sprout-radius-md); padding: 18px 20px; box-shadow: var(--sprout-shadow-card); }
.kpi-lbl { font-size: 12.5px; color: var(--sprout-muted); margin-bottom: 8px; }
.kpi-val { font-family: var(--sprout-font-display); font-size: 28px; font-weight: 800; color: var(--sprout-ink); font-variant-numeric: tabular-nums; line-height: 1; }
.panel { background: var(--sprout-card); border: 1px solid var(--sprout-border); border-radius: var(--sprout-radius-md); box-shadow: var(--sprout-shadow-card); overflow: hidden; }
.panel-h { display: flex; align-items: center; justify-content: space-between; padding: 15px 20px; border-bottom: 1px solid var(--sprout-border); }
.panel-t { font-size: 14.5px; font-weight: 800; color: var(--sprout-ink); }
.hint-line { margin: -8px 0; font-size: 12.5px; color: var(--sprout-muted); }
.hint-line b { color: var(--sprout-primary-deep); }

/* ---------- 表格 ---------- */
.tbl-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 700; color: var(--sprout-muted); padding: 11px 16px; border-bottom: 1px solid var(--sprout-border); font-size: 12px; background: var(--sprout-bg); white-space: nowrap; }
td { padding: 13px 16px; border-bottom: 1px solid var(--sprout-border); color: var(--sprout-text); }
tbody tr:last-child td { border-bottom: none; }
tbody tr.hl { background: var(--sprout-primary-soft); }
.tname { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.course { color: var(--sprout-primary-deep); font-weight: 600; }
.money { font-family: var(--sprout-font-display); font-weight: 800; font-variant-numeric: tabular-nums; }
/* 退款行：与报名行并列，用淡红底色区分 */
tbody tr.refund-row { background: rgba(239,68,68,.04); }
/* 退款原因跟在具体课程下方；限宽 + 省略号，避免撑宽整列把其它列挤到折行 */
.row-note { margin-top: 2px; max-width: 150px; font-size: 11.5px; font-weight: 400; color: var(--sprout-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* 姓名 / 金额 / 状态标签不折行（列一多就会被压成竖排） */
tbody .tname, tbody .money, tbody .sprout-pill { white-space: nowrap; }
.link { color: var(--sprout-primary-deep); font-weight: 600; cursor: pointer; }
.rank { width: 24px; height: 24px; border-radius: 7px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 12px; font-family: var(--sprout-font-display); flex: none; }

/* ---------- 表单 ---------- */
.field-lbl { font-size: 13px; font-weight: 600; color: var(--sprout-text); margin-bottom: 6px; display: flex; gap: 2px; }
.req { color: var(--sprout-error); }
.inp { height: 44px; padding: 0 14px; border: 1.5px solid var(--sprout-border); border-radius: var(--sprout-radius-sm); background: var(--sprout-card); color: var(--sprout-text); font-size: 14px; width: 100%; font-family: inherit; }
.inp:focus { outline: none; border-color: var(--sprout-primary); box-shadow: var(--sprout-focus-ring); }
select.inp { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
textarea.inp { height: auto; min-height: 62px; padding: 11px 14px; resize: vertical; }
.inp.hi { border-color: var(--sprout-primary); background: var(--sprout-primary-soft); }
.helper { font-size: 12px; color: var(--sprout-muted); margin-top: 5px; }
.helper.accent { color: var(--sprout-primary-deep); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .col-span { grid-column: 1 / -1; }

/* ---------- 图表 ---------- */
.dbars { display: flex; align-items: flex-end; gap: 20px; height: 170px; padding: 30px 6px 26px; }
.dbar { flex: 1; background: var(--sprout-primary-grad); border-radius: 8px 8px 0 0; position: relative; min-width: 0; min-height: 3px; }
.dbar-lbl { position: absolute; bottom: -22px; left: 0; right: 0; text-align: center; font-size: 11px; color: var(--sprout-muted); }
.dbar-v { position: absolute; top: -20px; left: 0; right: 0; text-align: center; font-size: 11px; font-weight: 700; color: var(--sprout-ink); }
.donut { width: 130px; height: 130px; border-radius: 50%; flex: none; }
.lg-item { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--sprout-text); }
.lg-dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; justify-content: space-between; padding: 13px 18px; border-top: 1px solid var(--sprout-border); flex-wrap: wrap; gap: 8px; }
.pg-info { font-size: 12px; color: var(--sprout-muted); }
.pg-btns { display: flex; gap: 5px; align-items: center; }
.pg-b { min-width: 30px; height: 30px; padding: 0 9px; border: 1px solid var(--sprout-border); background: var(--sprout-card); border-radius: 8px; font-size: 12.5px; font-weight: 600; color: var(--sprout-text); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.pg-b.on { background: var(--sprout-primary); color: #fff; border-color: var(--sprout-primary); }
.pg-b:disabled { color: var(--sprout-muted); opacity: .45; cursor: not-allowed; }

/* ---------- 设置里的 chip ---------- */
.chip { display: inline-flex; align-items: center; gap: 7px; padding: 7px 13px; border-radius: var(--sprout-radius-pill); background: var(--sprout-primary-soft); color: var(--sprout-primary-deep); font-size: 13px; font-weight: 600; }
.chip .x { cursor: pointer; opacity: .6; font-weight: 800; }
.chip .x:hover { opacity: 1; color: var(--sprout-error); }
.chip-name { cursor: pointer; }
.chip-name:hover { text-decoration: underline; }
.danger-btn:hover { color: var(--sprout-error) !important; border-color: var(--sprout-error) !important; }
.chip.add { background: var(--sprout-bg); color: var(--sprout-muted); border: 1px dashed var(--sprout-border); cursor: pointer; }
.chip.add:hover { border-color: var(--sprout-primary); color: var(--sprout-primary-deep); }

/* ---------- 弹窗 ---------- */
.scrim { position: fixed; inset: 0; background: var(--sprout-scrim); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal { background: var(--sprout-card); border-radius: 18px; box-shadow: var(--sprout-shadow-soft); width: 440px; max-width: 100%; padding: 24px; max-height: 90vh; overflow-y: auto; }
/* 内含表格的弹窗（学生明细）需要更宽，窄屏时退回全宽 */
.modal--wide { width: 860px; }
.modal h3 { margin: 0 0 4px; font-family: var(--sprout-font-display); font-size: 20px; color: var(--sprout-ink); }
.modal .muted { font-size: 13px; color: var(--sprout-muted); margin-bottom: 18px; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 22px; }

/* ---------- 通用 ---------- */
.empty { padding: 40px; text-align: center; color: var(--sprout-muted); font-size: 14px; }
.spacer { flex: 1; }
.checkbox { width: 18px; height: 18px; border-radius: 5px; border: 1.5px solid var(--sprout-border); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; background: var(--sprout-card); }
.checkbox.on { background: var(--sprout-primary); border-color: var(--sprout-primary); color: #fff; }
.toast { position: fixed; top: 20px; left: 50%; transform: translateX(-50%); background: var(--sprout-ink); color: #fff; padding: 12px 22px; border-radius: 12px; font-size: 14px; font-weight: 600; z-index: 200; box-shadow: var(--sprout-shadow-soft); opacity: 0; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(4px); }
.toast.err { background: var(--sprout-error); }

/* ---------- 浮动操作按钮（FAB） ---------- */
.fab { position: fixed; right: 30px; bottom: 30px; z-index: 60; height: 54px; padding: 0 22px; border: none; border-radius: var(--sprout-radius-pill); background: var(--sprout-primary-grad); color: #fff; font-size: 15px; font-weight: 700; font-family: var(--sprout-font-body); box-shadow: var(--sprout-shadow-clay); cursor: pointer; display: inline-flex; align-items: center; gap: 8px; transition: transform .15s ease, box-shadow .15s ease; }
.fab:hover { transform: translateY(-2px); }
.fab:active { transform: scale(.97); }

@media (max-width: 720px) {
  .auth-hero { display: none; }
  .auth-form { padding: 40px 28px; }
  .side { position: fixed; z-index: 50; transform: translateX(-100%); transition: transform .2s; box-shadow: var(--sprout-shadow-soft); }
  .side.open { transform: translateX(0); }
  .form-grid { grid-template-columns: 1fr; }
  .menu-toggle { display: inline-flex !important; }
}
.menu-toggle { display: none; }