:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-border: #d4dde5;
  --text: #1e2a36;
  --muted: #5b6b79;
  --primary: #0b5cab;
  --primary-contrast: #ffffff;
  --danger: #b72f2f;
  --warn: #a96a08;
  --ok: #1f7a3b;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(14, 30, 58, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% -20%, #e5f0fb 0%, transparent 40%),
    radial-gradient(circle at 85% -30%, #eef8ef 0%, transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: 'Source Sans 3', sans-serif;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 1px solid transparent;
  background: var(--primary);
  color: var(--primary-contrast);
  padding: 0.5rem 0.9rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}

button.secondary {
  background: var(--panel);
  color: var(--text);
  border-color: var(--panel-border);
}

button.danger {
  background: var(--danger);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 0.5rem 0.65rem;
  background: #fff;
}

textarea {
  min-height: 80px;
  resize: vertical;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem;
}

.app-header {
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  position: sticky;
  top: 0.5rem;
  backdrop-filter: blur(10px);
  z-index: 40;
}

.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.brand {
  font-family: 'Manrope', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.header-user {
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-row {
  margin-top: 0.9rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-link {
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  background: #fff;
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
}

.nav-link.active {
  border-color: var(--primary);
  color: var(--primary);
  background: #eff6ff;
}

.grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid.courses-admin-layout {
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 1fr);
  align-items: start;
}

.course-create-panel,
.course-list-panel {
  min-width: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.panel h2,
.panel h3 {
  font-family: 'Manrope', sans-serif;
  margin-top: 0;
}

.panel p {
  margin-top: 0.25rem;
}

.stack {
  display: grid;
  gap: 0.6rem;
}

.row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.row.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  font-weight: 600;
  color: #33485f;
  font-size: 0.92rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.absent-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  line-height: 1.2;
}

.absent-toggle input[type='checkbox'] {
  width: auto;
  min-width: 0;
  max-width: none;
  border: 0;
  padding: 0;
  background: transparent;
  margin: 0;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid #e6edf3;
  padding: 0.55rem 0.45rem;
  vertical-align: top;
}

th {
  font-family: 'Manrope', sans-serif;
  font-size: 0.88rem;
  color: #364a5e;
  font-weight: 700;
}

td {
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.18rem 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.badge.scheduled {
  color: #0969a2;
  background: #e7f2fb;
}

.badge.completed {
  color: #7f4f00;
  background: #fff3dd;
}

.badge.locked {
  color: #833030;
  background: #fde8e8;
}

.alert {
  margin-top: 1rem;
  border-radius: 10px;
  padding: 0.65rem 0.8rem;
  border: 1px solid transparent;
  font-weight: 600;
}

.alert.info {
  background: #eaf4ff;
  border-color: #b9dafb;
  color: #124876;
}

.alert.success {
  background: #e9f8ee;
  border-color: #bde9ca;
  color: #1d5f33;
}

.alert.error {
  background: #fdeeee;
  border-color: #f3c6c6;
  color: #7f2525;
}

.alert.warn {
  background: #fff7e6;
  border-color: #efd7a3;
  color: #835704;
}

.muted {
  color: var(--muted);
}

.inline-actions {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.card-list {
  display: grid;
  gap: 0.7rem;
}

.card {
  border: 1px solid #dfe8f1;
  border-radius: 10px;
  padding: 0.75rem;
  background: #fff;
}

.scorecard-wrap {
  overflow-x: auto;
}

.scorecard-grid {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.scorecard-grid th,
.scorecard-grid td {
  border: 1px solid #d8e3ee;
  padding: 0.3rem;
  text-align: center;
}

.scorecard-grid th {
  background: #f3f8fd;
  font-size: 0.8rem;
  min-width: 72px;
}

.scorecard-grid td {
  min-width: 62px;
}

.scorecard-grid .scorecard-input {
  text-align: center;
  padding: 0.35rem;
}

.scorecard-grid.match-scorecard th {
  min-width: 160px;
  text-align: left;
  padding-left: 0.5rem;
}

.scorecard-grid.match-scorecard td {
  min-width: 64px;
}

.score-entry-input {
  min-width: 56px;
  max-width: 72px;
}

.scorecard-static-cell {
  background: #f7fbff;
  color: #26445f;
  font-weight: 600;
}

.scorecard-grid .scorecard-separator td {
  border: 0;
  background: transparent;
  height: 0.45rem;
  padding: 0;
}

.scorecard-total {
  border: 1px solid #c5d7e7;
  border-radius: 10px;
  background: #edf4fa;
  color: #27445f;
  font-weight: 700;
  padding: 0.5rem 0.65rem;
}

.login-wrap {
  max-width: 760px;
  margin: 2.4rem auto;
}

.login-title {
  font-family: 'Manrope', sans-serif;
  font-size: 2rem;
  margin-bottom: 0.35rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  background: #edf4fa;
  border: 1px solid #c5d7e7;
  color: #33536e;
  font-size: 0.82rem;
  font-weight: 700;
}

code {
  font-size: 0.88rem;
  background: #eff4fa;
  border: 1px solid #d5e2ee;
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
}

@media (max-width: 840px) {
  .row,
  .row.three {
    grid-template-columns: 1fr;
  }

  .app-header {
    position: static;
  }

  #app {
    padding: 0.6rem;
  }
}

@media (max-width: 1180px) {
  .grid.courses-admin-layout {
    grid-template-columns: 1fr;
  }
}