/* ===== 登录页 / 后台 ===== */
.acc-main { min-height: calc(100vh - 160px); padding: 56px clamp(18px, 6vw, 86px) 90px; }

/* 登录 */
.login-wrap { display: grid; place-items: center; min-height: calc(100vh - 260px); }
.login-card {
  width: min(440px, 100%);
  padding: 40px clamp(22px, 5vw, 44px);
  border: 1px solid var(--line);
  background: rgba(12, 12, 12, 0.88);
  backdrop-filter: blur(8px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5);
}
.login-card h1 { margin-bottom: 8px; font-size: clamp(2rem, 5vw, 2.6rem); line-height: 1.15; letter-spacing: 0; text-transform: none; }
.login-card .acc-sub { margin-bottom: 28px; color: var(--muted); font-size: 0.92rem; line-height: 1.7; }

/* 表单 */
.acc-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.acc-field span { color: var(--muted); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.08em; }
.acc-input, .acc-select {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(5, 5, 5, 0.8);
  color: var(--text);
  font: inherit;
  font-size: 0.96rem;
  font-weight: 600;
}
.acc-input:focus, .acc-select:focus { outline: none; border-color: var(--yellow); box-shadow: 0 0 0 3px rgba(255, 209, 102, 0.12); }
.acc-select option { background: #111; }
.acc-submit {
  width: 100%;
  min-height: 48px;
  margin-top: 6px;
  border: none;
  background: linear-gradient(135deg, var(--yellow), var(--orange));
  color: #050505;
  font: inherit;
  font-weight: 900;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: filter 200ms ease, opacity 200ms ease;
}
.acc-submit:hover { filter: brightness(1.08); }
.acc-submit:disabled { opacity: 0.6; cursor: wait; }
.acc-msg { min-height: 22px; margin: 12px 0 0; font-size: 0.88rem; font-weight: 700; }
.acc-msg.is-error { color: #ff6b81; }
.acc-msg.is-ok { color: var(--yellow); }
.acc-hint { margin-top: 22px; color: var(--muted); font-size: 0.82rem; line-height: 1.7; }

/* 后台 */
.acc-head { margin-bottom: 34px; }
.acc-head h1 { margin-bottom: 10px; font-size: clamp(2.4rem, 5.5vw, 4rem); line-height: 1.1; letter-spacing: 0; text-transform: none; }
.acc-head p { color: var(--muted); }
.acc-banner {
  margin-bottom: 26px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 209, 102, 0.35);
  border-left: 3px solid var(--yellow);
  background: rgba(255, 209, 102, 0.08);
  color: var(--text);
  font-weight: 700;
}
.acc-banner[hidden] { display: none; }
.acc-grid { display: block; }
.acc-workspace { display: grid; grid-template-columns: 214px minmax(0, 1fr); align-items: start; gap: 26px; min-width: 0; }
.acc-body { min-width: 0; max-width: 100%; }
.acc-sidebar { position: sticky; top: 95px; min-width: 0; padding: 20px 12px; border: 1px solid var(--line); background: rgba(12,12,12,.9); }
.acc-sidebar-title { display: flex; align-items: center; gap: 11px; padding: 4px 8px 18px; border-bottom: 1px solid var(--line); color: var(--text); font-size: .77rem; font-weight: 900; letter-spacing: .1em; }
.acc-sidebar-title small { display: block; color: var(--muted); font-size: .7rem; letter-spacing: 0; margin-top: 4px; }
.acc-sidebar-mark { display: grid; place-items: center; width: 34px; height: 34px; flex-shrink: 0; background: var(--red); color: #fff; font-size: 1.2rem; font-style: italic; }
.acc-sidebar-note { margin: 20px 8px 0; color: var(--muted); font-size: .67rem; letter-spacing: .1em; line-height: 1.5; }
.acc-module-nav { display: grid; gap: 5px; margin-top: 14px; }
.acc-module-nav button { display: flex; align-items: center; width: 100%; gap: 12px; padding: 13px 11px; border: 1px solid transparent; background: transparent; color: var(--muted); font: inherit; font-size: .9rem; font-weight: 800; text-align: left; cursor: pointer; }
.acc-module-nav button[hidden] { display: none; }
.acc-module-nav button span { color: var(--yellow); font-family: "Anton", sans-serif; font-size: .9rem; }
.acc-module-nav button b { margin-left: auto; font-weight: 500; opacity: 0; }
.acc-module-nav button:hover, .acc-module-nav button.is-active { border-color: rgba(255,209,102,.32); background: rgba(255,209,102,.07); color: var(--text); }
.acc-module-nav button.is-active b { opacity: 1; color: var(--yellow); }
.acc-module-nav button:disabled { cursor: not-allowed; opacity: .45; }
.acc-overview-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(210px,1fr)); gap: 16px; margin-top: 26px; }
.acc-overview-grid button { display: flex; flex-direction: column; align-items: flex-start; min-height: 200px; padding: 25px; border: 1px solid var(--line); background: linear-gradient(145deg,rgba(239,35,60,.16),rgba(16,16,16,.95)); color: var(--text); font: inherit; text-align: left; cursor: pointer; }
.acc-overview-grid button:hover { border-color: var(--yellow); }
.acc-overview-grid button > span { color: var(--yellow); font-size: .72rem; font-weight: 900; letter-spacing: .14em; }
.acc-overview-grid button strong { margin: 18px 0 8px; font-size: 1.3rem; }
.acc-overview-grid button small { color: var(--muted); font-size: .85rem; }
.acc-overview-grid button i { align-self: flex-end; margin-top: auto; color: var(--yellow); font-size: 1.3rem; font-style: normal; }
.acc-panel { min-width: 0; padding: 28px; border: 1px solid var(--line); background: rgba(12, 12, 12, 0.85); }
.acc-panel[hidden] { display: none; }
.acc-panel h2 { margin-bottom: 18px; font-family: "Noto Sans SC", sans-serif; font-size: 1.25rem; font-weight: 900; letter-spacing: 0.02em; text-transform: none; }
.acc-panel h3 { margin: 28px 0 14px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 1rem; }
.acc-profile { display: grid; grid-template-columns: auto 1fr; gap: 10px 18px; margin: 0; font-size: 0.92rem; }
.acc-profile dt { color: var(--muted); font-weight: 700; }
.acc-profile dd { margin: 0; font-weight: 800; }
.acc-role { display: inline-block; padding: 2px 10px; border-radius: 999px; background: rgba(255, 209, 102, 0.14); color: var(--yellow); font-size: 0.78rem; font-weight: 900; }
.acc-role.r-superadmin { background: rgba(239, 35, 60, 0.2); color: #ff8095; }
.acc-role.r-coach { background: rgba(255, 122, 0, 0.18); color: #ffb067; }

.acc-create { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; align-items: end; }
.acc-create .acc-field { margin: 0; }
.acc-create .acc-submit { width: auto; min-height: 46px; margin: 0; padding: 0 22px; }
.acc-toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 26px 0 14px; }
.acc-toolbar .acc-input { flex: 1 1 220px; width: auto; min-height: 40px; }
.acc-toolbar .acc-select { width: auto; min-height: 40px; }
.acc-count { margin-left: auto; color: var(--muted); font-size: 0.86rem; font-weight: 700; }

.acc-table-wrap { overflow-x: auto; border: 1px solid var(--line); }
.acc-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.acc-table th, .acc-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.acc-table th { background: rgba(255, 209, 102, 0.06); color: var(--yellow); font-size: 0.76rem; letter-spacing: 0.08em; }
.acc-table tbody tr:last-child td { border-bottom: none; }
.acc-table tr.is-inactive td { color: var(--muted); }
.acc-table .acc-select { min-height: 32px; padding: 0 8px; font-size: 0.84rem; }
.acc-table .muted { color: var(--muted); font-size: 0.82rem; }
.acc-actions { display: flex; gap: 6px; }
.acc-btn {
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 800;
  cursor: pointer;
  transition: border-color 200ms ease, color 200ms ease;
}
.acc-btn:hover { border-color: var(--yellow); color: var(--yellow); }
.acc-btn.danger:hover { border-color: var(--red); color: #ff6b81; }
.acc-empty { padding: 26px; color: var(--muted); text-align: center; }

.acc-secret {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 209, 102, 0.4);
  background: rgba(255, 209, 102, 0.08);
  font-size: 0.9rem;
}
.acc-secret[hidden] { display: none; }
.acc-secret code { padding: 4px 10px; background: rgba(0, 0, 0, 0.5); color: var(--yellow); font-family: "SF Mono", Consolas, monospace; font-size: 1.05rem; letter-spacing: 0.06em; user-select: all; }

.acc-courses { margin-top: 0; }
.acc-course-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 14px; }
.acc-course-intro { color: var(--muted); font-size: 0.9rem; line-height: 1.8; margin: 0 0 22px; }
.acc-course-editor { display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; gap: 22px; }
.acc-course-fields { display: grid; gap: 16px; }
.acc-course-group { min-width: 0; margin: 0; padding: 22px; border: 1px solid var(--line); background: rgba(5, 5, 5, 0.36); }
.acc-course-group legend { padding: 0 10px; color: var(--text); font-size: 1rem; font-weight: 900; }
.acc-course-group legend span { color: var(--yellow); font-family: "Anton", sans-serif; font-size: 1.18rem; margin-right: 7px; }
.acc-course-fields-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px; }
.acc-course-fields-grid .acc-field { min-width: 0; margin: 0; }
.acc-course-fields-grid .acc-field em { color: var(--red); font-style: normal; }
.acc-wide { grid-column: 1 / -1; }
.acc-textarea { display: block; resize: vertical; min-height: 94px; padding: 12px 14px; line-height: 1.6; }
.acc-course-help { color: var(--muted); font-size: 0.78rem; line-height: 1.6; margin: 4px 0 14px; }
.acc-field .acc-course-help { margin: 0; }
.acc-field-error { display: block; min-height: 16px; color: #ff8095; font-size: 0.76rem; line-height: 1.4; }
.acc-input[aria-invalid="true"], .acc-select[aria-invalid="true"] { border-color: var(--red); }
.acc-time-shortcuts { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 18px; color: var(--muted); font-size: 0.82rem; }
.acc-time-shortcuts button { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,209,102,.05); color: var(--yellow); font: inherit; font-weight: 800; cursor: pointer; }
.acc-time-shortcuts button:hover { border-color: var(--yellow); }
.acc-course-preview { position: sticky; top: 98px; border: 1px solid rgba(255,209,102,.38); padding: 24px; background: radial-gradient(circle at 80% 0%, rgba(239,35,60,.14), transparent 65%), #12100f; }
.acc-course-preview h3 { margin: 0 0 22px; padding: 0; border: 0; font-size: 1.3rem; overflow-wrap: anywhere; }
.acc-course-preview dl { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 12px; margin: 0 0 24px; font-size: .85rem; }
.acc-course-preview dt { color: var(--muted); }
.acc-course-preview dd { margin: 0; font-weight: 800; overflow-wrap: anywhere; }
.acc-course-preview .acc-submit { width: 100%; }
.acc-course-preview .acc-msg { margin: 0 0 12px; }
.acc-course-tabs { display: flex; flex-wrap: wrap; gap: 8px; padding: 17px 0 24px; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
.acc-course-tabs button { display: inline-flex; align-items: center; gap: 7px; padding: 9px 16px; border: 1px solid var(--line); background: rgba(255,255,255,.03); color: var(--muted); font: inherit; font-size: .85rem; font-weight: 900; cursor: pointer; }
.acc-course-tabs button:hover { color: var(--text); border-color: var(--yellow); }
.acc-course-tabs button.is-active { border-color: transparent; background: var(--yellow); color: #050505; }
.acc-requests-badge { display: inline-grid; place-items: center; min-width: 19px; height: 19px; padding: 0 4px; border-radius: 99px; background: var(--red); color: #fff; font-size: .7rem; }
.acc-requests-badge[hidden], [data-course-panel][hidden] { display: none !important; }
.acc-courses > .acc-msg:empty { display: none; }
.acc-courses > .acc-msg { margin: 0 0 20px; }
.acc-course-list-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 16px; margin: 8px 0 22px; }
.acc-application-list { display: grid; gap: 12px; }
.acc-application-item { padding: 18px 20px; border: 1px solid var(--line); background: rgba(5,5,5,.45); }
.acc-application-top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.acc-application-top strong { color: var(--text); font-size: 1.02rem; }
.acc-application-top .acc-actions { margin-left: auto; }
.acc-application-course { margin: 9px 0 5px; color: var(--yellow); font-weight: 800; }
.acc-application-meta { color: var(--muted); font-size: .82rem; line-height: 1.65; }
.acc-application-filter-empty { padding: 42px 18px; border: 1px dashed var(--line); color: var(--muted); text-align: center; }
.acc-course-list .acc-course-info { margin-bottom: 0; }
.acc-course-list-head h2 { margin: 0; }
.acc-course-list { display: grid; gap: 16px; margin-top: 20px; }
.acc-course-item { padding: 22px; border: 1px solid var(--line); background: rgba(5, 5, 5, 0.45); }
.acc-course-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; }
.acc-course-top h3 { margin: 0; padding: 0; border: 0; font-size: 1.12rem; }
.acc-course-meta { margin: 12px 0; color: var(--muted); font-size: 0.86rem; line-height: 1.8; }
.acc-course-info { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; margin: 10px 0 16px; color: var(--yellow); font-size: 0.85rem; font-weight: 800; }
.acc-course-bookings { display: grid; gap: 8px; }
.acc-course-booking { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); font-size: 0.86rem; }
.acc-course-booking strong { min-width: 120px; }
.acc-course-booking .acc-actions { margin-left: auto; }
.acc-course-state { color: var(--muted); font-size: 0.82rem; }
.acc-course-state.pending { color: var(--yellow); }
.acc-course-state.approved, .acc-course-state.accepted { color: #8bd8af; }
.acc-course-state.rejected { color: #ff8095; }
[data-team-panel][hidden], #plan-manual-fields[hidden], #plan-official-fields[hidden] { display: none !important; }
.acc-team-form { display: grid; gap: 16px; margin: 16px 0 26px; }
.acc-team-form .acc-field { margin: 0; }
.acc-team-form .acc-field > span { color: var(--muted); }
.acc-team-submit { width: auto; min-width: 190px; justify-self: start; padding: 0 22px; }
.acc-official-option { padding: 12px 14px; border: 1px solid var(--line); background: rgba(255,255,255,.03); color: var(--text); text-align: left; font: inherit; cursor: pointer; }
.acc-official-option:hover, .acc-official-option.is-selected { border-color: var(--yellow); }
.acc-award-status { color: var(--yellow); font-size: .82rem; font-weight: 800; }
@media (max-width: 1080px) {
  .acc-workspace { grid-template-columns: minmax(0, 1fr); }
  .acc-sidebar { position: static; padding: 14px; }
  .acc-sidebar-title, .acc-sidebar-note { display: none; }
  .acc-module-nav { display: flex; max-width: 100%; overflow-x: auto; margin: 0; }
  .acc-module-nav button { width: auto; flex-shrink: 0; white-space: nowrap; }
  .acc-grid, .acc-course-editor { grid-template-columns: 1fr; }
  .acc-course-preview { position: static; }
  .acc-create { grid-template-columns: 1fr 1fr; }
  .acc-create .acc-submit { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .acc-overview-grid { grid-template-columns: 1fr; }
  .acc-course-tabs { flex-wrap: nowrap; overflow-x: auto; }
  .acc-course-tabs button { flex-shrink: 0; white-space: nowrap; }
  .acc-create, .acc-course-fields-grid { grid-template-columns: 1fr; }
  .acc-wide { grid-column: auto; }
  .acc-course-group, .acc-course-preview { padding: 18px; }
  .acc-panel { padding: 20px; }
}