:root {
  --bg: #f4f6f3;
  --panel: #ffffff;
  --soft: #f9faf7;
  --text: #1e2926;
  --muted: #66736e;
  --line: #dce1d8;
  --primary: #176f67;
  --primary-dark: #105850;
  --danger: #b8454e;
  --warning: #b37a18;
  --accent-blue: #2f5f9f;
  --accent-gold: #c9932a;
  --accent-rose: #b85d75;
  --shadow: 0 16px 34px rgba(30, 41, 38, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.45;
}

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

a {
  color: inherit;
}

.topbar {
  width: min(1320px, calc(100% - 28px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}

.brand span {
  padding: 4px 7px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 900;
}

.brand strong {
  font-size: 1.05rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
}

.nav a,
.user-pill {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 780;
  text-decoration: none;
}

.page {
  width: min(1320px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 42px;
}

.footer {
  width: min(1320px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  font-size: 1.05rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.16rem);
}

.eyebrow,
.panel-title,
label span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 22px;
  align-items: start;
  padding: 34px 0 22px;
}

.login-page .page {
  padding-top: 34px;
}

.login-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 26px;
  align-items: start;
  padding: 24px 0 22px;
}

.login-copy h1 {
  max-width: 760px;
}

.login-copy .lead {
  max-width: 650px;
}

.login-visual {
  max-width: 720px;
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.visual-header span,
.visual-tags span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.visual-meter {
  height: 9px;
  margin: 16px 0;
  overflow: hidden;
  border-radius: 999px;
  background: var(--soft);
}

.visual-meter i {
  display: block;
  width: 42%;
  height: 100%;
  background: var(--primary);
}

.visual-stage-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.stage {
  min-height: 58px;
  display: grid;
  place-items: center;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--muted);
  font-weight: 900;
}

.stage.open {
  border-color: rgba(47, 95, 159, 0.35);
  background: rgba(47, 95, 159, 0.09);
  color: var(--accent-blue);
}

.stage.active {
  border-color: rgba(23, 111, 103, 0.35);
  background: rgba(23, 111, 103, 0.1);
  color: var(--primary-dark);
}

.visual-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.visual-tags span {
  padding: 6px 8px;
  border-radius: 999px;
  background: rgba(201, 147, 42, 0.12);
  color: #755719;
}

.signin-card {
  padding: 22px;
  margin-top: clamp(92px, 8vw, 138px);
}

.signin-card-head {
  margin-bottom: 16px;
}

.signin-card-head span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.signin-card-head strong {
  display: block;
  font-size: 1.35rem;
  line-height: 1.18;
}

.signin-card-head p {
  margin: 8px 0 0;
  color: var(--muted);
}

.google-signin {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 0 14px;
  border: 1px solid #dadce0;
  border-radius: 6px;
  background: #fff;
  color: #3c4043;
  font-weight: 650;
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(60, 64, 67, 0.12);
}

.google-signin:hover {
  background: #f8fafd;
  border-color: #c6cbd2;
}

.google-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
}

.google-icon svg {
  width: 18px;
  height: 18px;
}

.fallback-access {
  margin-top: 16px;
  border-top: 1px solid var(--line);
}

.fallback-access > summary {
  padding-top: 13px;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 850;
}

.fallback-grid {
  display: grid;
  gap: 10px;
}

.fallback-access .fallback-grid {
  margin-top: 4px;
}

.login-showcase {
  max-width: 760px;
  margin-top: 30px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(47, 95, 159, 0.08), transparent 44%),
    linear-gradient(315deg, rgba(201, 147, 42, 0.12), transparent 48%),
    var(--panel);
  box-shadow: var(--shadow);
}

.showcase-topline,
.showcase-footer,
.student-unit-detail-head,
.progress-board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.showcase-topline span,
.showcase-footer span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.course-path-graphic {
  display: grid;
  grid-template-columns: 18px 1fr 18px 1fr 18px 1fr 18px;
  align-items: center;
  gap: 7px;
  margin: 16px 0;
}

.path-node {
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--panel);
}

.path-node.done,
.path-node.active {
  border-color: var(--primary);
  background: var(--primary);
}

.path-node.active {
  box-shadow: 0 0 0 5px rgba(23, 111, 103, 0.13);
}

.path-line {
  height: 4px;
  border-radius: 999px;
  background: var(--line);
}

.path-line.done {
  background: var(--primary);
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 10px;
}

.showcase-tile {
  min-height: 112px;
  display: grid;
  align-content: space-between;
  gap: 8px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.showcase-tile span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.showcase-tile strong {
  font-size: 1.34rem;
  line-height: 1;
}

.studio-tile {
  border-color: rgba(23, 111, 103, 0.25);
}

.studio-tile em {
  display: block;
  width: 68%;
  height: 9px;
  border-radius: 999px;
  background: var(--primary);
}

.lab-tile {
  border-color: rgba(47, 95, 159, 0.25);
}

.signal-bars {
  display: flex;
  align-items: end;
  gap: 6px;
  min-height: 46px;
}

.signal-bars i {
  width: 13px;
  border-radius: 999px 999px 4px 4px;
  background: var(--accent-blue);
}

.signal-bars i:nth-child(1) { height: 16px; opacity: 0.55; }
.signal-bars i:nth-child(2) { height: 28px; opacity: 0.7; }
.signal-bars i:nth-child(3) { height: 38px; opacity: 0.86; }
.signal-bars i:nth-child(4) { height: 24px; opacity: 0.62; }

.cert-tile {
  border-color: rgba(201, 147, 42, 0.32);
}

.cert-tile strong {
  color: #755719;
}

.team-tile {
  border-color: rgba(184, 93, 117, 0.28);
}

.mini-avatars {
  display: flex;
}

.mini-avatars i {
  width: 34px;
  height: 34px;
  margin-right: -7px;
  border: 2px solid var(--panel);
  border-radius: 50%;
  background: var(--accent-rose);
}

.mini-avatars i:nth-child(2) {
  background: var(--primary);
}

.mini-avatars i:nth-child(3) {
  background: var(--accent-blue);
}

.showcase-footer {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.login-panel,
.panel,
.narrow-card,
.notice-card,
.unit-panel,
.lesson-card,
.lesson-status,
.trust-grid > div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.login-panel,
.panel,
.narrow-card,
.notice-card {
  padding: 16px;
}

.stacked-form {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.stacked-form input,
.stacked-form textarea,
.settings-grid input,
.settings-grid select,
.settings-grid textarea,
.inline-form input,
textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--soft);
  color: var(--text);
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 111, 103, 0.14);
}

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-weight: 850;
  text-decoration: none;
  white-space: nowrap;
}

.button.primary,
.button.google {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.button.primary:hover,
.button.google:hover {
  background: var(--primary-dark);
}

.button.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

.button.danger-outline {
  border-color: rgba(184, 69, 78, 0.45);
  color: var(--danger);
}

.button.compact {
  min-height: 32px;
  padding: 0 10px;
  font-size: 0.88rem;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.54;
}

.setup-note,
.alert {
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--muted);
}

.alert.success {
  border-color: rgba(23, 111, 103, 0.25);
  color: var(--primary-dark);
}

.alert.danger {
  border-color: rgba(184, 69, 78, 0.25);
  color: var(--danger);
}

.trust-grid,
.teacher-grid,
.project-context-grid,
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.trust-grid > div {
  padding: 14px;
}

.trust-grid p,
.muted,
.small,
.form-note,
.lesson-card p,
.notice-card p {
  color: var(--muted);
}

.small {
  font-size: 0.9rem;
}

.dashboard-head,
.lesson-hero {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.dashboard-head h1,
.lesson-hero h1 {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.stat-grid div {
  min-width: 110px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat-grid strong {
  display: block;
  font-size: 1.6rem;
}

.stat-grid span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.panel {
  margin-bottom: 14px;
}

.admin-setup-panel > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.admin-setup-panel > summary::-webkit-details-marker {
  display: none;
}

.admin-setup-panel > summary span {
  font-weight: 900;
}

.admin-setup-panel > summary em {
  color: var(--muted);
  font-size: 0.88rem;
  font-style: normal;
  font-weight: 760;
}

.admin-setup-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.danger-zone > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.danger-zone > summary::-webkit-details-marker {
  display: none;
}

.danger-zone > summary span {
  color: var(--danger);
  font-weight: 900;
}

.danger-zone > summary em {
  color: var(--muted);
  font-size: 0.88rem;
  font-style: normal;
  font-weight: 760;
}

.semester-reset-form {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.teacher-grid {
  grid-template-columns: 1fr 1fr;
  margin-bottom: 14px;
}

.student-management-grid {
  display: grid;
  grid-template-columns: 0.9fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.student-progress-list {
  display: grid;
  gap: 10px;
}

.student-progress-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(320px, 1.4fr) auto;
  gap: 14px;
  align-items: start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.student-identity {
  display: grid;
  gap: 4px;
}

.student-identity strong {
  font-size: 1.05rem;
}

.student-identity small,
.student-progress-detail small {
  color: var(--muted);
}

.student-identity p {
  margin: 5px 0 0;
  color: var(--muted);
}

.student-status {
  width: fit-content;
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(184, 69, 78, 0.1);
  color: var(--danger);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.student-status.allowed {
  background: rgba(23, 111, 103, 0.11);
  color: var(--primary-dark);
}

.student-progress-detail {
  display: grid;
  gap: 8px;
}

.student-progress-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.student-progress-head span {
  color: var(--muted);
  font-weight: 850;
}

.student-unit-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.student-unit-chips span {
  padding: 5px 7px;
  border: 1px solid color-mix(in srgb, var(--unit-color) 35%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--unit-color) 10%, #fff);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 820;
}

.student-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.progress-board-panel {
  overflow: hidden;
}

.progress-board-head {
  margin-bottom: 12px;
}

.progress-board-head p {
  margin-bottom: 0;
}

.star-chart-wrap {
  overflow-x: auto;
}

.star-chart-table {
  width: 100%;
  min-width: 960px;
  border-collapse: collapse;
}

.star-chart-table th,
.star-chart-table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.star-chart-table thead th {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.star-chart-table tbody th {
  min-width: 220px;
}

.star-chart-table tbody th a {
  display: block;
  color: var(--text);
  font-weight: 900;
  text-decoration: none;
}

.star-chart-table tbody th a:hover {
  text-decoration: underline;
}

.star-chart-table small {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 760;
}

.table-progress-cell {
  display: grid;
  gap: 2px;
}

.star-cell {
  min-width: 130px;
}

.unit-cell-title {
  display: none;
}

.star-progress {
  width: 40px;
  height: 40px;
  display: inline-block;
  position: relative;
  overflow: hidden;
  background: #e8e5d9;
  clip-path: polygon(50% 0, 61% 34%, 97% 34%, 68% 55%, 79% 90%, 50% 68%, 21% 90%, 32% 55%, 3% 34%, 39% 34%);
  vertical-align: middle;
}

.star-progress i {
  display: block;
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: var(--fill);
  background: var(--accent-gold);
}

.student-detail-stack {
  margin-bottom: 14px;
}

.student-detail-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  margin-bottom: 10px;
}

.student-detail-card > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  cursor: pointer;
  list-style: none;
}

.student-detail-card > summary::-webkit-details-marker {
  display: none;
}

.student-detail-card > summary span {
  display: grid;
  gap: 2px;
}

.student-detail-card > summary strong {
  font-size: 1.04rem;
}

.student-detail-card > summary small,
.student-detail-card > summary em {
  color: var(--muted);
  font-size: 0.84rem;
  font-style: normal;
  font-weight: 780;
}

.student-detail-card > summary em {
  margin-left: auto;
}

.student-detail-card > summary::after {
  content: "Open";
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--soft);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 850;
}

.student-detail-card[open] > summary::after {
  content: "Close";
}

.student-detail-body {
  display: grid;
  gap: 14px;
  padding: 0 14px 14px;
}

.student-detail-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.student-detail-meta p {
  margin: 0;
  color: var(--muted);
}

.student-unit-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.student-unit-detail {
  border: 1px solid color-mix(in srgb, var(--unit-color) 30%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--unit-color) 6%, white);
}

.student-unit-detail-head {
  padding: 10px;
  border-bottom: 1px solid color-mix(in srgb, var(--unit-color) 22%, var(--line));
}

.student-unit-detail-head span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
}

.student-lesson-checks {
  display: grid;
  gap: 6px;
  padding: 10px;
}

.lesson-check {
  display: grid;
  grid-template-columns: 16px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.lesson-check i {
  width: 14px;
  height: 14px;
  margin-top: 2px;
  border: 2px solid #a9b0ab;
  border-radius: 50%;
}

.lesson-check.done i {
  border-color: var(--unit-color);
  background: var(--unit-color);
}

.lesson-check.locked {
  opacity: 0.55;
}

.lesson-check strong,
.lesson-check small {
  display: block;
}

.lesson-check strong {
  line-height: 1.22;
}

.lesson-check small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
}

.detail-actions {
  justify-content: flex-start;
}

.roster-tools-panel > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.roster-tools-panel > summary::-webkit-details-marker {
  display: none;
}

.roster-tools-panel > summary span {
  font-weight: 900;
}

.roster-tools-panel > summary em {
  color: var(--muted);
  font-size: 0.88rem;
  font-style: normal;
  font-weight: 760;
}

.roster-tools-panel[open] > summary {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.inner-panel {
  margin-bottom: 0;
  box-shadow: none;
}

.roster-mini-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.roster-mini-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.roster-mini-row span:first-child {
  display: grid;
  gap: 2px;
}

.roster-mini-row small {
  color: var(--muted);
}

.project-context-grid {
  grid-template-columns: 1.2fr 0.8fr;
}

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

.settings-grid .wide {
  grid-column: 1 / -1;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 780;
}

.check input {
  width: auto;
  min-height: 0;
}

.inline-actions,
.inline-form,
.row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.team-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.team-card.is-mine {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 111, 103, 0.12), var(--shadow);
}

.team-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.team-card h2 {
  margin: 0;
  font-size: 1.15rem;
}

.team-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.member-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.member-list li {
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.member-list strong,
.member-list small {
  display: block;
}

.member-list small {
  color: var(--muted);
  font-weight: 700;
}

.unit-stack {
  display: grid;
  gap: 12px;
}

.unit-panel {
  overflow: hidden;
}

.unit-panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  cursor: pointer;
  list-style: none;
  font-weight: 900;
}

.unit-panel summary span {
  min-width: 0;
}

.unit-panel summary small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 750;
}

.unit-panel summary::-webkit-details-marker {
  display: none;
}

.unit-panel summary form {
  margin: 0;
}

.lesson-table {
  border-top: 1px solid var(--line);
}

.lesson-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.lesson-row:last-child {
  border-bottom: 0;
}

.lesson-row strong {
  display: block;
}

.lesson-row small {
  display: block;
  color: var(--muted);
  margin-top: 3px;
}

.status-dot {
  width: 10px;
  height: 10px;
  display: inline-block;
  margin-right: 7px;
  border-radius: 50%;
  background: #a6aea8;
}

.is-unlocked .status-dot {
  background: var(--primary);
}

.current-lesson-row {
  background: #f7faf6;
}

.current-lesson-row strong {
  color: var(--primary-dark);
}

.lesson-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.lesson-status {
  min-width: 190px;
  display: grid;
  gap: 8px;
  padding: 12px;
  color: var(--primary-dark);
  font-weight: 900;
  text-align: center;
}

.lesson-status.teacher-only {
  color: var(--warning);
}

.arduino-workflow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.95fr) minmax(260px, 0.95fr);
  gap: 12px;
}

.arduino-workflow-grid > div,
.vocab-card {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.arduino-workflow-grid h2 {
  margin-bottom: 8px;
}

.workflow-steps {
  display: grid;
  gap: 7px;
  margin: 8px 0 0;
  padding-left: 22px;
}

.workflow-steps li::marker {
  color: var(--primary);
  font-weight: 900;
}

.code-snippet {
  max-height: 260px;
  overflow: auto;
  margin: 8px 0 0;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #15211e;
  color: #f2faf7;
  font-size: 0.86rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.vocab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
}

.vocab-card {
  display: grid;
  align-content: start;
  gap: 6px;
}

.vocab-card strong {
  color: var(--primary-dark);
}

.vocab-card p,
.vocab-card small {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.guide-grid > div {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.guide-grid strong {
  display: block;
  margin-bottom: 5px;
}

.guide-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.teacher-snapshot-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.teacher-snapshot-grid small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
}

.teacher-guide-block {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.teacher-guide-block h2,
.study-tool-head h2,
.objective-map h2 {
  margin: 0;
  font-size: 1rem;
}

.guide-note-grid,
.resource-note-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px;
}

.guide-note-card,
.resource-note-card {
  display: grid;
  align-content: start;
  gap: 7px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.guide-note-card strong,
.resource-note-card strong {
  display: block;
}

.guide-note-card p,
.resource-note-card p,
.guide-flow-list p {
  margin-bottom: 0;
  color: var(--text);
  font-size: 0.9rem;
}

.resource-note-card small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
}

.resource-note-card details {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
}

.resource-note-card summary {
  padding: 8px 10px;
  cursor: pointer;
  color: var(--primary-dark);
  font-size: 0.86rem;
  font-weight: 850;
}

.resource-note-card details p {
  padding: 0 10px 10px;
}

.guide-flow-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}

.guide-flow-list li {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.guide-flow-list li::marker {
  color: var(--primary);
  font-weight: 900;
}

.edp-source-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.edp-source-row span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 780;
}

.edp-section-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.edp-section {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.edp-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  cursor: pointer;
  list-style: none;
  font-weight: 900;
}

.edp-section summary::-webkit-details-marker {
  display: none;
}

.edp-section summary em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 800;
  white-space: nowrap;
}

.edp-section-body {
  display: grid;
  gap: 8px;
  padding: 0 12px 12px;
}

.edp-section-body p {
  margin-bottom: 0;
  color: var(--text);
}

.edp-table-wrap {
  overflow-x: auto;
  padding: 0 12px 12px;
}

.edp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.edp-table td {
  min-width: 150px;
  padding: 8px;
  border: 1px solid var(--line);
  vertical-align: top;
}

.edp-appendix {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.edp-appendix > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  cursor: pointer;
  list-style: none;
  font-weight: 900;
}

.edp-appendix > summary::-webkit-details-marker {
  display: none;
}

.edp-appendix > summary em {
  color: var(--muted);
  font-size: 0.8rem;
  font-style: normal;
  font-weight: 800;
}

.resource-list {
  display: grid;
  gap: 8px;
}

.resource-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  text-decoration: none;
}

.resource-row:hover {
  border-color: #bac3bd;
}

.resource-row span {
  font-weight: 830;
}

.resource-row small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.resource-row em,
.unit-panel summary em {
  color: var(--muted);
  font-style: normal;
  font-size: 0.88rem;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  background: #eef2ed;
  color: var(--text);
  overflow-wrap: anywhere;
}

.project-home-head h1 {
  max-width: 760px;
}

.trainer-card {
  width: min(360px, 100%);
}

.trainer-card strong,
.compact-panel strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.06rem;
}

.project-overview-grid {
  display: grid;
  grid-template-columns: 1.1fr repeat(5, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.progress-overview,
.unit-progress-card {
  min-height: 126px;
  display: grid;
  align-content: space-between;
  gap: 8px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.progress-overview span,
.unit-progress-card span,
.unit-progress-card small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.progress-overview strong,
.unit-progress-card strong {
  font-size: 1.55rem;
  line-height: 1;
}

.unit-progress-card strong {
  color: var(--unit-color);
}

.project-meter {
  width: 100%;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e7ebe5;
}

.project-meter i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--unit-color, var(--primary));
}

.studio-support-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.compact-panel {
  display: grid;
  align-content: start;
  gap: 8px;
}

.help-queue-card {
  border-color: rgba(23, 111, 103, 0.28);
}

.help-status {
  display: grid;
  gap: 6px;
  padding: 11px;
  border: 1px solid rgba(23, 111, 103, 0.22);
  border-radius: 8px;
  background: #f2faf7;
}

.help-status strong {
  margin: 0;
  color: var(--primary-dark);
}

.mini-help-form {
  margin-top: 0;
}

.help-queue-panel {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.help-queue-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
}

.help-queue-head strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.15rem;
}

.help-queue-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(92px, 1fr));
  gap: 8px;
}

.help-queue-metrics span {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.help-queue-metrics strong {
  display: block;
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
}

.help-queue-controls {
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.help-queue-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.help-column {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.help-column h2 {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 0;
  padding: 11px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: uppercase;
}

.help-list {
  display: grid;
  gap: 8px;
  min-height: 94px;
  padding: 10px;
}

.help-entry {
  display: grid;
  gap: 8px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.help-entry.helping {
  border-color: rgba(47, 95, 159, 0.35);
  background: #f3f7fd;
}

.help-entry.done {
  opacity: 0.74;
}

.help-entry strong,
.help-entry small {
  display: block;
}

.help-entry small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.help-entry p {
  margin: 0;
  color: var(--muted);
}

.help-entry form,
.help-queue-controls form {
  margin: 0;
}

.help-empty {
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.queue-present-page {
  background: #111b18;
  color: #fff;
}

.queue-present-page .button {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.present-topbar,
.present-shell {
  width: min(1440px, calc(100% - 36px));
  margin: 0 auto;
}

.present-topbar {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.present-topbar .brand span {
  background: #fff;
  color: var(--primary-dark);
}

.present-topbar .brand strong {
  color: #fff;
}

.present-shell {
  padding: 28px 0 42px;
}

.present-hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.present-hero h1 {
  max-width: 880px;
  color: #fff;
  font-size: clamp(3rem, 8vw, 7rem);
}

.present-hero .eyebrow,
.present-hero .lead {
  color: rgba(255, 255, 255, 0.72);
}

.present-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 10px;
}

.present-metrics span {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.85rem;
  font-weight: 900;
  text-transform: uppercase;
}

.present-metrics strong {
  display: block;
  color: #fff;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
}

.present-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.75fr) minmax(0, 1.25fr);
  gap: 14px;
  align-items: start;
}

.present-column {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.present-column h2 {
  margin: 0;
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(1rem, 2vw, 1.35rem);
  text-transform: uppercase;
}

.present-list {
  display: grid;
  gap: 12px;
  min-height: 240px;
  padding: 14px;
}

.present-entry {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.present-entry.helping {
  border-color: rgba(201, 147, 42, 0.55);
  background: rgba(201, 147, 42, 0.16);
}

.present-entry span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.9rem;
  font-weight: 900;
  text-transform: uppercase;
}

.present-entry strong {
  color: #fff;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  line-height: 1;
}

.present-entry p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1rem, 2vw, 1.35rem);
}

.present-empty {
  min-height: 160px;
  display: grid;
  place-items: center;
  padding: 22px;
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.62);
  text-align: center;
}

.project-unit-panel {
  --unit-color-soft: color-mix(in srgb, var(--unit-color) 11%, white);
}

.project-unit-panel summary {
  border-left: 7px solid var(--unit-color);
}

.project-unit-panel summary em {
  color: var(--unit-color);
  font-weight: 900;
}

.current-unit {
  border-color: color-mix(in srgb, var(--unit-color, var(--primary)) 45%, var(--line));
}

.current-unit > summary {
  background: color-mix(in srgb, var(--unit-color, var(--primary)) 8%, white);
}

.project-unit {
  display: grid;
  gap: 14px;
  padding: 14px;
  border-top: 1px solid var(--line);
}

.project-brief {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 0.22fr);
  gap: 14px;
  align-items: center;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--unit-color-soft, var(--soft));
}

.project-brief strong {
  display: block;
  margin-bottom: 5px;
}

.project-brief p {
  margin-bottom: 0;
  color: var(--muted);
}

.project-progress-block {
  display: grid;
  gap: 8px;
}

.project-progress-block span {
  color: var(--unit-color);
  font-size: 1.5rem;
  font-weight: 950;
  text-align: right;
}

.sequence-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(34px, 1fr));
  gap: 7px;
  padding: 2px 1px 8px;
}

.sequence-dot {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-decoration: none;
}

.sequence-dot.open {
  border-color: color-mix(in srgb, var(--unit-color) 45%, var(--line));
  color: var(--unit-color);
}

.sequence-dot.done {
  border-color: var(--unit-color);
  background: var(--unit-color);
  color: #fff;
}

.sequence-dot.locked {
  opacity: 0.45;
}

.sequence-dot.current {
  outline: 3px solid color-mix(in srgb, var(--unit-color) 22%, transparent);
  outline-offset: 2px;
}

.phase-accordion-list {
  display: grid;
  gap: 10px;
}

.phase-section {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.phase-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  cursor: pointer;
  list-style: none;
  background: var(--unit-color-soft, #eef2ed);
  color: var(--unit-color, var(--muted));
  font-size: 0.86rem;
  font-weight: 950;
  text-transform: uppercase;
}

.phase-section summary::-webkit-details-marker {
  display: none;
}

.phase-section summary em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 830;
  text-transform: none;
}

.phase-section.current-phase {
  border-color: color-mix(in srgb, var(--unit-color) 50%, var(--line));
}

.phase-section.current-phase summary {
  background: color-mix(in srgb, var(--unit-color) 16%, white);
}

.phase-lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
  padding: 10px;
}

.phase-empty {
  min-height: 72px;
  display: grid;
  align-items: center;
  margin: 10px;
  padding: 10px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
}

.phase-lesson {
  display: grid;
  gap: 5px;
  min-height: 166px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  text-decoration: none;
}

.phase-lesson.available {
  border-color: color-mix(in srgb, var(--unit-color) 30%, var(--line));
}

.phase-lesson.done {
  border-color: var(--unit-color);
  background: color-mix(in srgb, var(--unit-color) 8%, white);
}

.phase-lesson.current-lesson {
  border-color: var(--unit-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--unit-color) 14%, transparent);
}

.phase-lesson.locked {
  opacity: 0.55;
  background: #f1f3ef;
}

.phase-lesson span,
.phase-lesson p,
.phase-lesson small,
.phase-lesson em {
  color: var(--muted);
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 780;
}

.phase-lesson p {
  margin-bottom: 0;
  font-size: 0.85rem;
}

.phase-lesson strong {
  line-height: 1.2;
}

.phase-lesson.done .lesson-card-head strong,
.phase-lesson.done .lesson-title-link {
  color: var(--unit-color);
}

.lesson-title-link {
  color: var(--text);
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.18;
  text-decoration: none;
}

.lesson-title-link:hover {
  text-decoration: underline;
}

.complete-form {
  margin: 0;
}

.cert-head h1 {
  max-width: 760px;
}

.cert-status-card {
  width: min(420px, 100%);
}

.cert-status-card strong,
.cert-status-card small {
  display: block;
}

.cert-status-card small {
  color: var(--muted);
  font-weight: 780;
}

.cert-domain-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.cert-domain-card {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.cert-domain-card span {
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 950;
}

.cert-domain-card strong {
  font-size: 1.08rem;
}

.cert-domain-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.cert-tool-panel {
  display: grid;
  gap: 14px;
}

.study-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.study-tabs button {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--soft);
  color: var(--muted);
  cursor: pointer;
  font-weight: 850;
}

.study-tabs button.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.study-pane {
  display: none;
}

.study-pane.active {
  display: grid;
  gap: 14px;
}

.objective-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.objective-map article {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.objective-map p {
  margin-bottom: 0;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag-row span {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.official-source-list {
  margin-top: 2px;
}

.study-tool-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.study-tool-head select {
  min-height: 40px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--soft);
  color: var(--text);
  font-weight: 800;
}

.flashcard {
  min-height: 240px;
  display: grid;
  align-content: center;
  gap: 12px;
  width: 100%;
  padding: 28px;
  border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--line));
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #edf5f3 100%);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}

.flashcard span,
.flashcard em {
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-style: normal;
  font-weight: 900;
  text-transform: uppercase;
}

.flashcard strong {
  max-width: 860px;
  font-size: clamp(1.2rem, 3vw, 2rem);
  line-height: 1.2;
}

.study-actions {
  margin-top: 2px;
}

.quiz-list {
  display: grid;
  gap: 10px;
}

.quiz-card {
  display: grid;
  gap: 10px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.quiz-card > span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  text-transform: uppercase;
}

.quiz-choices {
  display: grid;
  gap: 7px;
}

.quiz-choices label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
}

.quiz-explanation {
  display: none;
  margin-bottom: 0;
  color: var(--muted);
}

.quiz-card.correct {
  border-color: rgba(23, 111, 103, 0.45);
  background: #f2faf7;
}

.quiz-card.incorrect {
  border-color: rgba(184, 69, 78, 0.45);
  background: #fff7f7;
}

.quiz-card.correct .quiz-explanation,
.quiz-card.incorrect .quiz-explanation {
  display: block;
}

.quiz-result {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--muted);
  font-weight: 850;
}

.quiz-result.good {
  border-color: rgba(23, 111, 103, 0.35);
  color: var(--primary-dark);
}

.quiz-result.needs-work {
  border-color: rgba(179, 122, 24, 0.35);
  color: var(--warning);
}

.narrow-card {
  max-width: 620px;
  margin: 60px auto;
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: 7px;
  }

  .nav a,
  .user-pill {
    min-height: 34px;
    padding: 6px 9px;
    font-size: 0.82rem;
  }
}

@media (max-width: 1100px) {
  .star-chart-wrap {
    overflow: visible;
  }

  .star-chart-table,
  .star-chart-table tbody,
  .star-chart-table tr,
  .star-chart-table th,
  .star-chart-table td {
    display: block;
    width: 100%;
    min-width: 0;
  }

  .star-chart-table thead {
    display: none;
  }

  .star-chart-table tr {
    display: grid;
    gap: 8px;
    margin-bottom: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--soft);
  }

  .star-chart-table th,
  .star-chart-table td {
    padding: 0;
    border-bottom: 0;
  }

  .star-cell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 40px auto;
    align-items: center;
    gap: 8px;
  }

  .unit-cell-title {
    display: block;
    font-weight: 850;
  }
}

@media (max-width: 1020px) {
  .hero,
  .login-hero,
  .dashboard-head,
  .lesson-hero,
	  .teacher-grid,
	  .project-context-grid,
	  .trust-grid,
	  .settings-grid,
	  .team-grid,
	  .student-management-grid,
	  .student-progress-row,
	  .student-unit-detail-grid,
	  .project-overview-grid,
	  .studio-support-grid,
	  .help-queue-head,
	  .help-queue-board,
	  .help-queue-metrics,
	  .present-hero,
	  .present-grid,
	  .present-metrics,
	  .project-brief,
	  .guide-grid,
	  .teacher-snapshot-grid,
	  .arduino-workflow-grid,
	  .cert-domain-grid,
	  .objective-map,
	  .student-lesson-grid,
	  .lesson-row {
	    grid-template-columns: 1fr;
  }

  .dashboard-head,
  .lesson-hero {
    display: grid;
  }

  .login-visual {
    max-width: none;
  }

  .login-showcase {
    max-width: none;
  }

  .signin-card {
    margin-top: 0;
  }

	  .row-actions {
	    justify-content: flex-start;
	  }

	  .study-tool-head {
	    align-items: stretch;
	    display: grid;
	  }

	  .study-tool-head select {
	    width: 100%;
	  }

	  .project-progress-block span {
	    text-align: left;
	  }
	}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav {
    justify-content: flex-start;
  }

  .resource-row,
  .unit-panel summary,
  .admin-setup-panel > summary,
  .roster-tools-panel > summary,
  .danger-zone > summary,
  .admin-setup-body,
  .progress-board-head,
  .student-detail-card > summary,
  .showcase-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .visual-stage-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .showcase-grid {
    grid-template-columns: 1fr;
  }

  .button,
  .inline-form input,
  .google-signin {
    width: 100%;
  }

  .student-actions {
    justify-content: flex-start;
  }
}