:root {
  --fbl-core-primary: #1457d9;
  --fbl-core-primary-dark: #0e3d99;
  --fbl-core-bg: #f5f7fb;
  --fbl-core-card: #ffffff;
  --fbl-core-border: #dfe6f2;
  --fbl-core-ink: #152033;
  --fbl-core-muted: #667085;
  --fbl-core-good: #15803d;
  --fbl-core-warn: #b45309;
  --fbl-core-danger: #b91c1c;
  --fbl-core-radius: 20px;
}
.fbl-dashboard, .fbl-admin-wrap { color: var(--fbl-core-ink); }
.fbl-dash-hero {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  padding: clamp(22px, 4vw, 36px); margin-bottom: 22px;
  border-radius: 28px; color: #fff; background: linear-gradient(135deg, #103d96, #1457d9);
  box-shadow: 0 22px 50px rgba(20, 87, 217, .22);
}
.fbl-dash-hero span { display: inline-flex; background: rgba(255,255,255,.15); padding: 7px 12px; border-radius: 999px; font-weight: 800; }
.fbl-dash-hero h1 { margin: 10px 0 0; font-size: clamp(1.6rem, 3vw, 3rem); line-height: 1.08; letter-spacing: -.035em; }
.fbl-dash-button { display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 999px; background: var(--fbl-core-primary); color: #fff !important; padding: 11px 16px; font-weight: 800; text-decoration: none; cursor: pointer; box-shadow: 0 10px 24px rgba(20,87,217,.2); }
.fbl-dash-button:hover { background: var(--fbl-core-primary-dark); color: #fff; }
.fbl-dash-card { background: var(--fbl-core-card); border: 1px solid var(--fbl-core-border); border-radius: var(--fbl-core-radius); padding: clamp(18px, 3vw, 28px); box-shadow: 0 12px 30px rgba(21, 32, 51, .05); margin-bottom: 20px; }
.fbl-dash-card h2 { margin-top: 0; line-height: 1.15; letter-spacing: -.02em; }
.fbl-dash-card h3 { margin-bottom: 10px; }
.fbl-dashboard-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; align-items: start; }
.fbl-span-2 { grid-column: 1 / -1; }
.fbl-stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin: 0 0 22px; }
.fbl-stat { background: var(--fbl-core-card); border: 1px solid var(--fbl-core-border); border-radius: 18px; padding: 18px; box-shadow: 0 10px 24px rgba(21,32,51,.04); }
.fbl-stat span { display: block; color: var(--fbl-core-muted); font-size: .9rem; font-weight: 800; }
.fbl-stat strong { display: block; font-size: clamp(1.35rem, 2.4vw, 2rem); margin-top: 6px; line-height: 1; }
.fbl-table-wrap { overflow-x: auto; }
.fbl-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.fbl-table th, .fbl-table td { border-bottom: 1px solid var(--fbl-core-border); padding: 12px 10px; text-align: left; vertical-align: top; }
.fbl-table th { color: var(--fbl-core-muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; }
.fbl-badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 10px; background: #eef4ff; color: #1646a4; font-size: .78rem; font-weight: 900; text-transform: capitalize; }
.fbl-clean-list { display: grid; gap: 12px; padding-left: 20px; }
.fbl-form { display: grid; gap: 14px; }
.fbl-form label { display: grid; gap: 7px; font-weight: 800; color: var(--fbl-core-ink); }
.fbl-form input, .fbl-form select, .fbl-form textarea { width: 100%; border: 1px solid var(--fbl-core-border); border-radius: 12px; padding: 10px 12px; background: #fff; color: var(--fbl-core-ink); font: inherit; }
.fbl-form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.fbl-alert { border-radius: 14px; padding: 12px 14px; margin: 0 0 18px; font-weight: 800; background: #ecfdf3; color: #067647; border: 1px solid #abefc6; }
.fbl-alert--error { background: #fef3f2; color: #b42318; border-color: #fecdca; }
.fbl-mini-stats { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 18px; }
.fbl-mini-stats span { display: inline-flex; border: 1px solid var(--fbl-core-border); background: #f8fafc; border-radius: 999px; padding: 8px 12px; font-weight: 800; }
.fbl-teacher-cards { display: grid; gap: 12px; }
.fbl-teacher-card { border: 1px solid var(--fbl-core-border); border-radius: 16px; padding: 14px; background: #fff; }
.fbl-teacher-card strong, .fbl-teacher-card span, .fbl-teacher-card small { display: block; }
.fbl-teacher-card span { color: var(--fbl-core-primary); font-weight: 800; }
.fbl-teacher-card p { color: var(--fbl-core-muted); margin: 8px 0; }
.fbl-task-list { display: grid; gap: 14px; }
.fbl-task { border: 1px solid var(--fbl-core-border); border-radius: 16px; padding: 16px; background: #fff; }
.fbl-task h3 { margin: 10px 0 6px; }
.fbl-task p { color: var(--fbl-core-muted); }
.fbl-submit-work { margin-top: 12px; border-top: 1px solid var(--fbl-core-border); padding-top: 10px; }
.fbl-submit-work summary { cursor: pointer; font-weight: 900; color: var(--fbl-core-primary); }
.fbl-course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.fbl-course-card { background: #fff; border: 1px solid var(--fbl-core-border); border-radius: 20px; padding: 18px; box-shadow: 0 10px 24px rgba(21,32,51,.04); }
.fbl-course-card img { border-radius: 16px; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
@media (max-width: 960px) {
  .fbl-dashboard-grid, .fbl-stat-grid, .fbl-course-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .fbl-dash-hero { align-items: flex-start; flex-direction: column; }
  .fbl-dashboard-grid, .fbl-stat-grid, .fbl-course-grid, .fbl-form-row { grid-template-columns: 1fr; }
}