* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  color: #1b2a35;
  background: #f2f6f9;
}

a {
  color: #0f5b74;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1rem;
}

.panel {
  background: #fff;
  border: 1px solid #d4e0e8;
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 8px 20px rgba(15, 91, 116, 0.08);
}

.panel-soft {
  background: #f9fcff;
  border-style: dashed;
  margin-bottom: 1rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
}

.meta {
  color: #4e6270;
  font-size: 0.92rem;
}

.btn {
  border: 0;
  border-radius: 8px;
  background: #0f5b74;
  color: #fff;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.btn.secondary {
  background: #5a7688;
}

.btn.danger {
  background: #8f3030;
}

.btn.link {
  background: transparent;
  color: #0f5b74;
  padding: 0;
}

.grid {
  display: grid;
  gap: 1rem;
}

.module-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.module-link {
  text-decoration: none;
  border: 1px solid #cfe0ea;
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  color: #0f5b74;
  background: #f7fbfe;
  font-size: 0.92rem;
}

.module-link.active {
  background: #0f5b74;
  color: #fff;
  border-color: #0f5b74;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.8rem;
}

.course-card {
  border: 1px solid #d4e0e8;
  border-radius: 10px;
  padding: 0.75rem;
  background: #fbfdff;
}

.course-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-size: 0.78rem;
  background: #e7f0f5;
  color: #0f5b74;
  border-radius: 999px;
  padding: 0.2rem 0.45rem;
}

.badge-row {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.clean-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.clean-list li {
  padding: 0.3rem 0;
  border-bottom: 1px solid #edf2f6;
}

.muted {
  color: #556873;
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.auth-card {
  width: 100%;
  max-width: 460px;
}

label {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 0.6rem;
}

input {
  font: inherit;
  border: 1px solid #cfdbe3;
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
}

select,
textarea {
  font: inherit;
  border: 1px solid #cfdbe3;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  resize: vertical;
}

.error {
  border: 1px solid #f3c2c2;
  background: #fff2f2;
  color: #8b2e2e;
  border-radius: 8px;
  padding: 0.55rem;
  margin-bottom: 0.6rem;
}

.flash {
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font-size: 0.92rem;
}

.flash.success {
  border: 1px solid #cbe8cf;
  background: #ecf9ef;
  color: #2d6b38;
}

.flash.error {
  border: 1px solid #f3c2c2;
  background: #fff2f2;
  color: #8b2e2e;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: end;
  margin: 0.5rem 0;
}

.inline-form label {
  margin: 0;
  min-width: 180px;
}

.inline-form .full-width {
  min-width: 100%;
}

.checkbox-inline {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 260px;
}

.inline-form.compact {
  justify-content: space-between;
  border: 1px solid #e7eef4;
  border-radius: 8px;
  padding: 0.35rem 0.45rem;
}

.admin-actions {
  margin-top: 0.8rem;
  border-top: 1px solid #e5edf3;
  padding-top: 0.6rem;
}

.admin-actions h4 {
  margin: 0.2rem 0 0.4rem;
}

.student-actions {
  display: grid;
  gap: 0.35rem;
}

.audit-list {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
  display: grid;
  gap: 0.45rem;
}

.audit-list li {
  border: 1px solid #e6edf3;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  background: #fcfeff;
}

.table-wrap {
  overflow: auto;
  margin-bottom: 0.8rem;
}

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

th,
td {
  text-align: left;
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid #e6edf3;
}

.badge.ok {
  background: #e4f7e8;
  color: #1f6f39;
}

.badge.pending {
  background: #fff1dc;
  color: #8a5a1e;
}

.badge-status-pendiente {
  background: #fff1dc;
  color: #8a5a1e;
}

.badge-status-en-curso {
  background: #e8f4ff;
  color: #245e8a;
}

.badge-status-cerrado {
  background: #e4f7e8;
  color: #1f6f39;
}

.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0.8rem;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.7rem;
  margin-bottom: 0.8rem;
}

.filters-row {
  margin-bottom: 0.8rem;
}

@media (max-width: 760px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}