:root {
  --nsa-primary: #673de6;
  --nsa-primary-dark: #5025d1;
  --nsa-bg: #f5f6ff;
  --nsa-surface: #ffffff;
  --nsa-border: #e6e8f3;
  --nsa-text: #1e2433;
  --nsa-muted: #6b7280;
  --nsa-success-bg: #eefbf3;
  --nsa-success-text: #166534;
  --nsa-error-bg: #fff1f2;
  --nsa-error-text: #be123c;
  --nsa-radius: 20px;
  --nsa-shadow: 0 18px 40px rgba(103, 61, 230, 0.08);
}

.nsa-auth-wrap,
.nsa-dashboard-shell,
.nsa-course-shell {
  font-family: Inter, Arial, sans-serif;
  color: var(--nsa-text);
}

.nsa-auth-wrap {
  display: grid;
  gap: 24px;
  grid-template-columns: 1.1fr .9fr;
  align-items: stretch;
}

.nsa-brand-card,
.nsa-card,
.nsa-course-head,
.nsa-course-content,
.nsa-stat-card {
  background: var(--nsa-surface);
  border: 1px solid var(--nsa-border);
  border-radius: var(--nsa-radius);
  box-shadow: var(--nsa-shadow);
}

.nsa-brand-card {
  background: linear-gradient(180deg, #f3f0ff 0%, #ffffff 100%);
  padding: 34px;
}

.nsa-brand-card h2,
.nsa-dashboard-head h2,
.nsa-course-title {
  margin: 10px 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
}

.nsa-brand-card p,
.nsa-dashboard-head p,
.nsa-course-subtitle,
.nsa-card p,
.nsa-small {
  color: var(--nsa-muted);
}

.nsa-brand-card ul {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.nsa-brand-card li {
  padding-left: 22px;
  position: relative;
}

.nsa-brand-card li::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--nsa-primary);
  position: absolute;
  left: 0;
  top: 8px;
}

.nsa-card,
.nsa-auth-card,
.nsa-course-content {
  padding: 28px;
}

.nsa-form,
.nsa-form label {
  display: grid;
  gap: 8px;
}

.nsa-form {
  gap: 16px;
}

.nsa-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.nsa-form input,
.nsa-form textarea,
.nsa-form select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--nsa-border);
  background: #fff;
  padding: 13px 14px;
  min-height: 48px;
  font-size: 15px;
  box-sizing: border-box;
}

.nsa-form textarea {
  min-height: 120px;
  resize: vertical;
}

.nsa-form input:focus,
.nsa-form textarea:focus,
.nsa-form select:focus {
  outline: 2px solid rgba(103, 61, 230, 0.18);
  border-color: var(--nsa-primary);
}

.nsa-checkbox {
  display: flex !important;
  align-items: center;
  gap: 10px;
}

.nsa-checkbox input {
  width: 18px;
  min-height: 18px;
}

.nsa-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  background: var(--nsa-primary);
  color: #fff !important;
  text-decoration: none;
  border: none;
  border-radius: 14px;
  padding: 14px 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease;
}

.nsa-button:hover {
  background: var(--nsa-primary-dark);
  transform: translateY(-1px);
}

.nsa-button-secondary {
  background: #fff;
  color: var(--nsa-primary) !important;
  border: 1px solid var(--nsa-border);
}

.nsa-button-secondary:hover {
  background: #f7f6ff;
}

.nsa-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nsa-kicker,
.nsa-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #f3f0ff;
  color: var(--nsa-primary);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.nsa-dashboard-shell,
.nsa-course-shell {
  display: grid;
  gap: 22px;
}

.nsa-dashboard-head,
.nsa-course-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.nsa-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.nsa-stat-card {
  padding: 22px;
}

.nsa-stat-card span {
  display: block;
  color: var(--nsa-muted);
  margin-bottom: 12px;
}

.nsa-stat-card strong {
  font-size: 28px;
  line-height: 1;
}

.nsa-dashboard-grid,
.nsa-grid-courses {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.nsa-grid-courses .nsa-card {
  height: 100%;
}

.nsa-course-card h3,
.nsa-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.nsa-meta-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--nsa-muted);
  font-size: 14px;
  margin: 14px 0 18px;
}

.nsa-course-meta-box {
  min-width: 260px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid var(--nsa-border);
  background: #fafaff;
  display: grid;
  gap: 10px;
}

.nsa-notice {
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 16px;
  font-weight: 600;
}

.nsa-notice-success {
  background: var(--nsa-success-bg);
  color: var(--nsa-success-text);
}

.nsa-notice-error {
  background: var(--nsa-error-bg);
  color: var(--nsa-error-text);
}

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

.nsa-table th,
.nsa-table td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--nsa-border);
  text-align: left;
}

.nsa-table th {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--nsa-muted);
}

.nsa-table a {
  color: var(--nsa-primary);
  text-decoration: none;
  font-weight: 700;
}

.nsa-small {
  font-size: 13px;
}

@media (max-width: 960px) {
  .nsa-auth-wrap,
  .nsa-dashboard-grid,
  .nsa-grid-courses,
  .nsa-stats-grid,
  .nsa-form-row {
    grid-template-columns: 1fr;
  }

  .nsa-dashboard-head,
  .nsa-course-head {
    flex-direction: column;
  }

  .nsa-course-meta-box {
    min-width: 100%;
  }
}