/* ===== Shared styles: schedule page + internal portal systems ===== */

/* Nav login button */
.nav-login {
  background: var(--primary);
  color: #fff !important;
  padding: 7px 16px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-login:hover { background: var(--accent); }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.stat-box {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
}
.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}
.stat-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 22px;
}
.filter-group { display: flex; flex-direction: column; gap: 6px; }
.filter-group label { font-size: 0.82rem; color: var(--text-secondary); font-weight: 600; }
.filter-group select {
  min-width: 160px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.92rem;
  background: #fff;
  color: var(--text);
}
.filter-search-group { flex: 1; min-width: 220px; }
.search-box { display: flex; gap: 8px; }
.search-box input {
  flex: 1;
  min-width: 140px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.92rem;
  background: #fff;
  color: var(--text);
}
.search-box input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,26,230,0.08); }

/* Data table */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 760px; }
.data-table th, .data-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table thead th { background: var(--primary); color: #fff; font-weight: 600; position: sticky; top: 0; }
.data-table tbody tr:nth-child(even) { background: #fafbfe; }
.data-table tbody tr:hover { background: var(--primary-soft); }
.table-empty { padding: 30px; text-align: center; color: var(--text-secondary); }
.table-note { margin-top: 14px; font-size: 0.82rem; color: var(--text-secondary); }

/* Course tags */
.course-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
.tag-hs { background: #16a34a; }
.tag-bls { background: #2563eb; }
.tag-acls { background: #dc2626; }
.tag-hst { background: #0891b2; }
.tag-blst { background: #7c3aed; }

/* ===== Internal portal layout ===== */
.portal-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 248px;
  background: #0b1f3a;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-brand img { height: 34px; width: auto; max-width: 100%; object-fit: contain; display: inline-block; }
.sidebar-brand span { color: #fff; font-weight: 800; font-size: 1.05rem; }
.role-badge {
  margin: 16px 20px;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(0,26,230,0.18);
  border: 1px solid rgba(0,26,230,0.4);
  font-size: 0.84rem;
}
.role-badge .role-name { color: #fff; font-weight: 700; font-size: 0.95rem; display: block; }
.sidebar nav { display: flex; flex-direction: column; padding: 4px 12px; flex: 1; }
.sidebar nav a {
  color: #cbd5e1;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  display: flex; align-items: center; gap: 10px;
  transition: background 0.2s;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active { background: var(--primary); color: #fff; font-weight: 600; }
.sidebar .side-foot { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.sidebar .side-foot a { color: #94a3b8; font-size: 0.85rem; }

.portal-main { flex: 1; background: #f4f6fb; min-width: 0; }
.topbar {
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 14px 28px; display: flex; align-items: center; justify-content: space-between;
}
.topbar h1 { font-size: 1.2rem; margin: 0; }
.topbar .crumbs { font-size: 0.82rem; color: var(--text-secondary); }
.portal-content { padding: 28px; }
.dash-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.dash-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
}
.dash-card h3 { margin: 0 0 8px; font-size: 1rem; }
.dash-card .big { font-size: 2rem; font-weight: 800; color: var(--primary); }
.dash-card p { margin: 6px 0 0; color: var(--text-secondary); font-size: 0.88rem; }
.dash-card .go { display: inline-block; margin-top: 14px; color: var(--primary); font-weight: 600; font-size: 0.88rem; }

.sys-section-title { font-size: 1.05rem; margin: 26px 0 14px; font-weight: 700; }
.panel {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); margin-bottom: 18px;
}
.panel h3 { margin: 0 0 14px; font-size: 1rem; }
.list-row { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); gap: 12px; }
.list-row:last-child { border-bottom: none; }
.list-row .lr-title { font-weight: 600; }
.list-row .lr-meta { font-size: 0.82rem; color: var(--text-secondary); }
.progress { height: 8px; background: #eef2f7; border-radius: 999px; overflow: hidden; flex: 1; max-width: 220px; }
.progress > span { display: block; height: 100%; background: var(--primary); }
.res-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.res-card { background:#fff; border:1px solid var(--border); border-radius: var(--radius); padding:18px; box-shadow: var(--shadow); }
.res-card .res-type { font-size: 0.74rem; font-weight:700; color: var(--accent); text-transform: uppercase; letter-spacing:.5px; }
.res-card h4 { margin: 6px 0 8px; font-size: 0.98rem; }
.res-card p { color: var(--text-secondary); font-size: 0.84rem; margin: 0 0 12px; }

.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-sm { padding: 7px 14px; font-size: 0.84rem; }

/* Auth / login page */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #0b1f3a 0%, #001ae6 100%); padding: 30px; }
.auth-card { background: #fff; width: 100%; max-width: 440px; border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,0.25); overflow: hidden; }
.auth-head { padding: 26px 30px; text-align: center; border-bottom: 1px solid var(--border); }
.auth-head img { height: 44px; width: auto; max-width: 100%; object-fit: contain; display: inline-block; }
.auth-head h2 { margin: 14px 0 4px; font-size: 1.25rem; }
.auth-head p { margin: 0; color: var(--text-secondary); font-size: 0.86rem; }
.role-tabs { display: flex; gap: 8px; padding: 18px 30px 0; }
.role-tabs button {
  flex: 1; padding: 10px; border: 1px solid var(--border); background: var(--bg-soft);
  border-radius: 10px; font-size: 0.9rem; cursor: pointer; font-weight: 600; color: var(--text-secondary);
  transition: all 0.2s;
}
.role-tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
/* 登录方式切换（密码 / 短信验证码 / 微信）与身份切换同款视觉 */
.method-tabs { display: flex; gap: 8px; padding: 12px 30px 0; }
.method-tabs button {
  flex: 1; padding: 9px 6px; border: 1px solid var(--border); background: var(--bg-soft);
  border-radius: 10px; font-size: 0.86rem; cursor: pointer; font-weight: 600; color: var(--text-secondary);
  transition: all 0.2s;
}
.method-tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
/* 微信登录入口按钮竖排 */
.wx-methods { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.wx-methods .wx-btn { width: 100%; margin-top: 0; text-align: center; text-decoration: none; }
/* 不可用态（如微信登录未配置）：置灰且不可点 */
.btn.disabled, .btn.disabled:hover { opacity: 0.5; cursor: not-allowed; background: var(--bg-soft); color: var(--text-secondary); border-color: var(--border); }
.auth-form { padding: 18px 30px 30px; }
.auth-form label { display: block; font-size: 0.84rem; font-weight: 600; margin: 12px 0 6px; }
.auth-form input {
  width: 100%; padding: 11px 13px; border: 1px solid var(--border); border-radius: 9px;
  font-size: 0.95rem; box-sizing: border-box;
}
.auth-form .btn { width: 100%; margin-top: 20px; }
.auth-hint { font-size: 0.8rem; color: var(--text-secondary); margin-top: 14px; text-align: center; }
/* 「记住我」：复选框与文字同行，不占整行宽度 */
.auth-remember {
  display: flex !important; align-items: center; gap: 7px;
  font-size: 0.82rem !important; font-weight: 500 !important;
  color: var(--text-secondary); margin: 12px 0 0 !important; cursor: pointer;
  user-select: none;
}
.auth-remember input[type="checkbox"] { width: 15px !important; height: 15px; margin: 0; cursor: pointer; accent-color: var(--primary); }

/* 「同意协议与政策」：可多行换行，链接高亮 */
.auth-terms {
  display: flex !important; align-items: flex-start; gap: 7px;
  font-size: 0.82rem !important; font-weight: 500 !important;
  margin-top: 10px !important; line-height: 1.55 !important;
  color: var(--text-secondary) !important; cursor: pointer; user-select: none;
}
.auth-terms input[type="checkbox"] {
  width: 15px !important; height: 15px; margin: 2px 0 0 0;
  cursor: pointer; accent-color: var(--primary); flex-shrink: 0;
}
.auth-terms a { color: var(--primary); text-decoration: underline; }
.auth-terms a:hover { color: var(--accent); }

.auth-form .btn:disabled { opacity: 0.65; cursor: not-allowed; }
.auth-back { text-align: center; margin-top: 16px; }
.auth-back a { color: var(--primary); font-size: 0.85rem; }
.auth-msg { min-height: 18px; font-size: 0.84rem; margin: 12px 0 0; text-align: center; }
.auth-msg.err { color: #d32f2f; }
.auth-msg.ok { color: #16a34a; }

/* SMS verification */
.sms-row { display: flex; gap: 10px; align-items: stretch; }
.sms-row input { flex: 1; }
.sms-row button { width: auto; flex: 0 0 auto; margin-top: 0; padding: 11px 14px; white-space: nowrap; font-size: 0.85rem; }
.sms-row button:disabled { opacity: 0.6; cursor: not-allowed; }

/* Social login */
.auth-social { margin-top: 16px; text-align: center; }
.auth-social-divider { position: relative; font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 12px; }
.auth-social-divider::before, .auth-social-divider::after { content: ""; position: absolute; top: 50%; width: 80px; height: 1px; background: var(--border); }
.auth-social-divider::before { left: 0; }
.auth-social-divider::after { right: 0; }
.btn-wechat { background: #07c160; color: #fff; border: none; }
.btn-wechat:hover { background: #06ad56; }

@media (max-width: 980px) {
  .stats-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .sidebar { display: none; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .portal-content { padding: 18px; }
  .topbar { padding: 12px 16px; }
}

/* ===== RTL 支持（仅阿拉伯语 ar 激活，不影响其他语言）===== */
html[dir="rtl"], html[dir="rtl"] body { direction: rtl; }
html[dir="rtl"] body { text-align: right; }
html[dir="rtl"] .lang-switch,
html[dir="rtl"] .lang-switch * { direction: ltr; text-align: left; }
html[dir="rtl"] input,
html[dir="rtl"] textarea,
html[dir="rtl"] select { direction: ltr; text-align: left; }
html[dir="rtl"] [dir="ltr"] { direction: ltr; }

/* ---------- 看板图表 ---------- */
.charts-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.charts-grid .panel { margin-bottom: 0; }
.chart-card .chart-svg { margin-top: 4px; }
.chart-card .chart-svg svg { display: block; }
.chart-empty { padding: 40px 0; text-align: center; color: var(--text-secondary); font-size: 0.9rem; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; padding-left: 2px; }
.chart-legend .lg-item { display: inline-flex; align-items: center; font-size: 0.82rem; color: var(--text-secondary); }
.chart-legend .lg-item i { width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; display: inline-block; }
@media (max-width: 900px) { .charts-grid { grid-template-columns: 1fr; } }

/* ===== 报名选课 ===== */
.enroll-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 14px; }
.enroll-card { padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.enroll-card-head { display: flex; align-items: center; justify-content: space-between; }
.enroll-card-head h3 { margin: 0; font-size: 1.05rem; }
.enroll-meta { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; color: var(--text-secondary); font-size: 0.9rem; }
.enroll-meta li { line-height: 1.5; }
.enroll-card .btn { margin-top: auto; align-self: flex-start; }
.enroll-card .small { font-size: 0.82rem; }

/* ===== 我的订单 ===== */
.order-list { display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
.order-card { padding: 16px 18px; display: flex; flex-direction: column; gap: 8px; }
.order-row { display: flex; align-items: baseline; justify-content: space-between; }
.order-no { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.92rem; color: var(--text-secondary); }
.order-amt { font-size: 1.15rem; font-weight: 700; color: var(--accent, #c0392b); }
.order-sub { font-size: 0.88rem; color: var(--text-secondary); }
.order-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 2px; }

/* 导师端：班级详情抽屉 */
.drawer-summary { background: var(--bg-soft, #f6f8fa); border: 1px solid var(--border, #e3e8ef); border-radius: 10px; padding: 12px 14px; margin-bottom: 12px; font-size: 0.92rem; }
.drawer-summary .fee-row { margin-top: 6px; color: var(--text-secondary); }
.drawer-summary .fee-row b { color: var(--text-primary, #222); }
.drawer-summary .fee-row b.warn { color: var(--danger, #eb5757); }
.drawer-toolbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }