/* Tokens: see design-tokens.css (loaded first in index.html). */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--accent-hover);
}

.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-subtle);
  border-right: 1px solid var(--border);
  padding: 1.25rem;
  overflow-y: auto;
  position: sticky;
  top: 0;
  height: 100vh;
  scrollbar-width: thin;
}

.sidebar .nav-link {
  font-size: 0.82rem;
  padding: 0.4rem 0.55rem;
}

.md-link-external::after {
  content: " ↗";
  font-size: 0.75em;
  opacity: 0.65;
}

.content pre {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.content th,
.content td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.6rem;
  text-align: left;
}

.brand-link {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 0.35rem 0.5rem;
  margin: -0.35rem -0.5rem 0.5rem;
  border-radius: 8px;
  transition: background 0.15s;
}

.brand-link:hover {
  background: var(--surface2);
  text-decoration: none;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand span {
  color: var(--accent);
}

.brand-hint {
  font-size: 0.68rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.subtitle {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.nav-section {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 1rem 0 0.5rem;
}

.nav-link {
  display: block;
  padding: 0.45rem 0.65rem;
  border-radius: 8px;
  color: var(--text-soft);
  font-size: 0.9rem;
  margin-bottom: 2px;
  transition: background 0.12s, color 0.12s;
}

.nav-link:hover,
.nav-link.active {
  background: var(--surface);
  color: var(--accent);
  text-decoration: none;
  box-shadow: var(--shadow);
}

.nav-link.done::after {
  content: " ✓";
  color: var(--accent);
  font-size: 0.75rem;
}

.nav-link.nav-optional {
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

.main {
  padding: 2rem 2.5rem 4rem;
  max-width: 960px;
}

.main.main--dashboard,
.main.main--intro {
  max-width: 1140px;
}

/* —— Instructor intro (#intro) —— */
.intro-page {
  animation: fadeIn 0.4s ease;
}

.intro-hero {
  background: linear-gradient(135deg, #1a2332 0%, #2c3e50 42%, #3d4f61 100%);
  color: #f8f6f2;
  border-radius: 16px;
  padding: 2.5rem 2.75rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 252, 248, 0.08);
}

.intro-welcome {
  margin: 0 0 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 252, 248, 0.72);
}

.intro-avatar-row {
  display: flex;
  gap: 1.35rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.intro-avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  flex-shrink: 0;
  background: linear-gradient(145deg, #c4a574 0%, #8b7355 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.intro-name {
  margin: 0 0 0.35rem;
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.intro-headline {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.intro-detail,
.intro-loc {
  margin: 0.2rem 0 0;
  font-size: 0.88rem;
  color: rgba(255, 252, 248, 0.78);
}

.intro-hook {
  margin: 0 0 1.5rem;
  padding: 1rem 1.25rem;
  border-left: 4px solid #7eb8d4;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0 10px 10px 0;
  font-size: 1.05rem;
  line-height: 1.6;
  font-style: italic;
  color: rgba(255, 252, 248, 0.95);
  max-width: 52ch;
}

.intro-tip-card {
  background: linear-gradient(120deg, #fffdf9 0%, #f3ebe0 55%, #e8eef5 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.35rem 1.5rem;
  margin-bottom: 1.75rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.intro-tip-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #5b8a9a, #c4a574, #6b4c9a);
}

.intro-tip-header {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.intro-tip-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.intro-tip-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.intro-tip-date {
  margin: 0.15rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 500;
}

.intro-tip-topic {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
}

.intro-tip-text {
  margin: 0 0 0.65rem;
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--text);
  font-weight: 500;
}

.intro-tip-remember {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-soft);
  padding: 0.65rem 0.85rem;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 8px;
  border: 1px dashed var(--border);
}

.intro-tip-remember strong {
  color: var(--accent-hover);
}

.intro-tip-source {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.intro-tip-source a {
  font-weight: 600;
}

/* —— Daily tip + quiz grid —— */
.intro-daily-section {
  margin-bottom: 2rem;
}

.intro-daily-section-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.intro-daily-section-lead {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 52rem;
}

.intro-daily-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: stretch;
}

.intro-daily-grid--four {
  grid-template-columns: 1fr 1fr;
}

.intro-daily-grid > div {
  min-height: 0;
}

.intro-daily-grid .intro-tip-card,
.intro-daily-grid .quiz-of-day-card,
.intro-daily-grid .daily-card {
  margin-bottom: 0;
  height: 100%;
}

@media (max-width: 900px) {
  .intro-daily-grid,
  .intro-daily-grid--four {
    grid-template-columns: 1fr;
  }
}

/* —— ERP deliverables —— */
.erp-deliverables-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.erp-deliverable-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  border-left: 4px solid #4a5c8c;
}

.erp-deliverable-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.erp-deliverable-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-soft);
}

.intro-avatar--erp {
  background: linear-gradient(145deg, #3d4f6f, #2a3d52);
}

/* —— Daily cards (humor / cartoon) —— */
.daily-card {
  background: linear-gradient(120deg, #fffdf9 0%, #f5f8fc 55%, #f0f4f8 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.daily-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #c9a227, #4a7c6f, #5b8a9a);
}

.daily-card-header {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.daily-card-icon {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 8px;
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.daily-card-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.daily-card-meta {
  margin: 0.12rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
}

.daily-humor-setup {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
}

.daily-humor-punch {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
  font-style: italic;
}

.daily-cartoon-figure {
  margin: 0;
}

.daily-cartoon-img {
  width: 100%;
  height: auto;
  max-height: 120px;
  object-fit: contain;
  display: block;
  margin-bottom: 0.5rem;
}

.daily-cartoon-figure figcaption {
  font-size: 0.82rem;
  line-height: 1.4;
  color: var(--text-soft);
}

.daily-loading {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 1rem;
}

/* —— Student access gate —— */
.access-gate-page {
  max-width: 520px;
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.access-gate-header h1 {
  margin: 0.25rem 0 0.75rem;
  font-size: 1.75rem;
}

.access-gate-eyebrow {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
}

.access-gate-lead {
  margin: 0 0 1.5rem;
  color: var(--text-soft);
  line-height: 1.55;
}

.access-gate-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.access-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.access-field em {
  font-weight: 400;
  color: var(--muted);
}

.access-field input {
  font: inherit;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.access-or {
  margin: 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.access-hint {
  margin: 0;
  font-size: 0.85rem;
  color: #8b3030;
}

.access-gate-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.access-privacy {
  margin: 0.5rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.nav-link.nav-locked {
  color: var(--accent);
  font-weight: 600;
}

body.mode-intro .progress-bar,
body.mode-intro #progress-label {
  display: none;
}

/* —— Quiz of the day —— */
.quiz-of-day-card {
  background: linear-gradient(120deg, #f8f4ff 0%, #eef6f3 55%, #fffdf9 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.quiz-of-day-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #6b4c9a, #4a7c6f, #5b8a9a);
}

.quiz-of-day-header {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}

.quiz-of-day-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  background: linear-gradient(145deg, #6b4c9a, #4a5c8c);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.quiz-of-day-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.quiz-of-day-meta {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
}

.quiz-of-day-optional {
  font-style: italic;
}

.quiz-of-day-hint {
  margin: 0.2rem 0 0;
  font-size: 0.72rem;
  color: var(--muted);
}

.quiz-of-day-question {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.quiz-of-day-options {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}

.quiz-option-btn {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  width: 100%;
  text-align: left;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.75);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--text-soft);
  transition: border-color 0.15s, background 0.15s;
}

.quiz-option-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: #fff;
}

.quiz-option-btn:disabled {
  cursor: default;
}

.quiz-option-letter {
  flex-shrink: 0;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 4px;
  background: var(--bg-subtle);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
}

.quiz-option-btn.is-correct {
  border-color: #3d6a5e;
  background: #e8f5f0;
}

.quiz-option-btn.is-correct .quiz-option-letter {
  background: #3d6a5e;
  color: #fff;
}

.quiz-option-btn.is-wrong {
  border-color: #c45c5c;
  background: #fdf0f0;
}

.quiz-option-btn.is-wrong .quiz-option-letter {
  background: #c45c5c;
  color: #fff;
}

.quiz-result-instant {
  margin-bottom: 0.75rem;
  padding: 0.75rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.45;
}

.quiz-result-instant.pass {
  background: #e8f5f0;
  border: 1px solid #b8dccf;
  color: #2a4a3f;
}

.quiz-result-instant.fail {
  background: #fdf0f0;
  border: 1px solid #e8c4c4;
  color: #5c3030;
}

.quiz-result-instant p {
  margin: 0;
}

.quiz-of-day-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

.quiz-of-day-loading {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  padding: 1rem;
}

.intro-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.intro-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.intro-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.intro-stat-value {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.intro-stat-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.72rem;
  color: var(--muted);
}

.intro-section {
  margin-bottom: 2rem;
}

.intro-section--soft {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
}

.intro-section-title {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.intro-lead {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-soft);
  max-width: 68ch;
}

.intro-why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.intro-why-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.25rem;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
}

.intro-why-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.intro-why-num {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #c4a574;
  margin-bottom: 0.4rem;
}

.intro-why-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  color: var(--text);
}

.intro-why-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--muted);
}

.intro-cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  background: linear-gradient(135deg, var(--accent-soft) 0%, var(--surface) 100%);
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 1.75rem 2rem;
  margin-top: 2rem;
}

.intro-cta-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.intro-cta-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  color: var(--text);
}

.intro-cta-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
  max-width: 42ch;
}

/* —— Learning home (#home) —— */
.learn-hero {
  display: grid;
  grid-template-columns: 1fr minmax(200px, 240px);
  gap: 1.75rem;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem 2.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
}

.learn-eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.learn-title {
  margin: 0 0 0.4rem;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}

.learn-tagline {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
}

.learn-path {
  margin: 0 0 1.15rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
  max-width: 55ch;
}

.learn-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.learn-about-link {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-btn:hover {
  color: var(--accent-hover);
}

@media (max-width: 900px) {
  .intro-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .learn-hero {
    grid-template-columns: 1fr;
  }

  .intro-cta-band {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* —— Dashboard —— */
.dashboard {
  animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dashboard-hero {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.dashboard-hero h1 {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  letter-spacing: -0.03em;
  color: var(--text);
}

.dashboard-headline {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 0.5rem;
  line-height: 1.45;
}

.dashboard-meta {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.dashboard-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.dashboard-card h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
}

.dashboard-card p,
.dashboard-card li {
  font-size: 0.92rem;
  color: var(--text-soft);
  margin: 0.35rem 0;
}

.dashboard-card ul {
  margin: 0;
  padding-left: 1.15rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  font-size: 0.8rem;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-hover);
  border: 1px solid transparent;
}

.skill-tag.learning {
  background: var(--accent2-soft);
  color: #3d6570;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

.focus-item {
  background: var(--bg);
  border-radius: 8px;
  padding: 0.85rem;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.focus-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.focus-item strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.focus-item span {
  font-size: 0.8rem;
  color: var(--muted);
}

.progress-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.progress-section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  color: var(--text);
}

.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.section-title {
  font-size: 1.05rem;
  margin: 0 0 1rem;
  color: var(--text);
}

/* —— Portfolio-style home (#home) —— */
.dashboard-port {
  --dash-radius: 12px;
  --port-hero-bg: linear-gradient(145deg, #2a3d38 0%, #3a5c52 45%, #4a7c6f 100%);
  --port-gold: #c4a574;
}

.port-hero {
  background: var(--port-hero-bg);
  color: #f8f6f2;
  border-radius: 16px;
  padding: 2.5rem 2.75rem 2.25rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-md);
}

.port-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--port-gold);
}

.port-hero .port-kicker {
  color: rgba(255, 252, 248, 0.75);
}

.port-hero-name {
  margin: 0 0 0.65rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.port-name-first,
.port-name-last {
  color: #fff;
}

.port-name-mid {
  color: var(--port-gold);
}

.port-hero-headline {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
}

.port-hero-detail {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  color: rgba(255, 252, 248, 0.82);
}

.port-hero-loc {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: rgba(255, 252, 248, 0.65);
}

.port-hero-lead {
  margin: 0 0 1.35rem;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 252, 248, 0.88);
}

.port-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.port-hero-next {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255, 252, 248, 0.7);
}

.port-hero-next strong {
  color: #fff;
}

.btn-light {
  background: #fff;
  color: #2a3d38;
  border: 1px solid #fff;
}

.btn-light:hover {
  background: #f0ebe3;
  color: #2a3d38;
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 252, 248, 0.45);
}

.btn-outline-light:hover {
  background: rgba(255, 252, 248, 0.12);
  color: #fff;
  border-color: rgba(255, 252, 248, 0.7);
}

.port-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.port-metric {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1rem 1.1rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.port-metric-value {
  display: block;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.port-metric-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.3;
}

.port-metric--progress {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.port-metric--progress .port-metric-value {
  color: var(--accent-hover);
}

.port-section {
  margin-bottom: 2.25rem;
}

.port-section .port-kicker {
  color: var(--accent);
}

.port-heading {
  margin: 0 0 0.85rem;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.port-body {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-soft);
  max-width: 65ch;
}

.port-body--sub {
  margin-top: -0.35rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.port-edu {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.port-services {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.port-service {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1.15rem 1.2rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  box-shadow: var(--shadow);
}

.port-service:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.port-service-num {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--port-gold);
  letter-spacing: 0.06em;
  margin-bottom: 0.45rem;
}

.port-service h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  color: var(--text);
}

.port-service p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

.port-exp-grid {
  display: grid;
  gap: 0.85rem;
}

.port-exp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1.2rem 1.35rem;
  box-shadow: var(--shadow);
}

.port-exp-head h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.port-exp-co {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.port-exp-meta {
  margin: 0.5rem 0 0.35rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.port-exp-summary {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.55;
}

.port-skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.port-skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1.1rem 1.2rem;
}

.port-skill-group h3 {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
}

.port-skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.port-skill-tags span {
  font-size: 0.78rem;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-soft);
}

.port-learning {
  margin-top: 1.25rem;
}

.port-learning-label {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.port-cta .port-heading {
  margin-bottom: 1rem;
}

.port-note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

@media (max-width: 900px) {
  .port-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .port-hero {
    padding: 1.75rem 1.35rem;
  }

  .port-strip {
    grid-template-columns: 1fr;
  }
}

/* —— Legacy dashboard widgets (tracks, quick links) —— */
.dashboard-pro {
  --dash-radius: 12px;
}

.dash-hero {
  display: grid;
  grid-template-columns: 1fr minmax(200px, 260px);
  gap: 2rem;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.dash-brand-row {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.dash-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  flex-shrink: 0;
  background: linear-gradient(145deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.dash-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.dash-title {
  margin: 0 0 0.35rem;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
}

.dash-tagline {
  margin: 0 0 0.85rem;
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 500;
}

.dash-about {
  margin: 0 0 1.25rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-soft);
  max-width: 52ch;
}

.dash-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
}

.btn-lg {
  padding: 0.65rem 1.25rem;
  font-size: 0.92rem;
}

.dash-continue-hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.dash-continue-hint strong {
  color: var(--text);
  font-weight: 600;
}

.dash-hero-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem 1.25rem;
}

.dash-panel-label {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.dash-ring {
  --ring-size: 120px;
  width: var(--ring-size);
  height: var(--ring-size);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: conic-gradient(
    var(--accent) calc(var(--pct, 0) * 1%),
    var(--border) 0
  );
  position: relative;
  margin-bottom: 1rem;
}

.dash-ring::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  background: var(--bg);
}

.dash-ring-value {
  position: relative;
  z-index: 1;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
}

.dash-ring-value small {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.dash-panel-sub {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
  color: var(--text-soft);
}

.dash-panel-note {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}

.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}

.dash-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1rem 1.15rem;
  box-shadow: var(--shadow);
}

.dash-stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
}

.dash-stat-label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
}

.dash-section {
  margin-bottom: 1.75rem;
}

.dash-section-head {
  margin-bottom: 1rem;
}

.dash-section-head h2,
.dash-section > h2,
.dash-aside h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.dash-section-head p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.dash-tracks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}

.dash-track {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1.1rem 1.2rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--track-accent, var(--accent));
}

.dash-track:hover {
  border-color: var(--track-accent, var(--accent));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.dash-track-head {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}

.dash-track-badge {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  background: var(--track-accent, var(--accent));
  border-radius: 6px;
}

.dash-track-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.dash-track-meta {
  margin: 0.15rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.dash-track-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.45rem;
}

.dash-track-fill {
  height: 100%;
  background: var(--track-accent, var(--accent));
  border-radius: 2px;
  transition: width 0.3s ease;
}

.dash-track-progress {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.dash-track-cta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--track-accent, var(--accent));
}

/* —— Course home tiles —— */
.course-home {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0.25rem 0 2.5rem;
}

.course-home-head {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.course-home-title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.course-home-sub {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.course-home-progress {
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.course-home-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.25s;
}

.course-home-progress-label {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.course-home-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.course-path-heading {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.course-path-lead {
  margin: 0 0 1rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.course-tiles-sections {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.course-part-tiles {
  --part-accent: var(--accent);
}

.course-part-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--part-accent, var(--accent));
}

.course-part-num {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--part-accent, var(--accent));
}

.course-part-title {
  margin: 0;
  flex: 1;
  font-size: 1.05rem;
  font-weight: 700;
}

.course-part-meta {
  font-size: 0.75rem;
  color: var(--muted);
}

.course-tiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 0.65rem;
}

.course-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  min-height: 6.5rem;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  border-top: 3px solid var(--tile-accent, var(--accent));
  background: var(--surface);
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.course-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
  border-color: color-mix(in srgb, var(--tile-accent) 40%, var(--border));
}

.course-tile:focus-visible {
  outline: 2px solid var(--tile-accent, var(--accent));
  outline-offset: 2px;
}

.course-tile.is-current {
  border-color: var(--tile-accent, var(--accent));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--tile-accent, var(--accent)) 22%, transparent);
}

.course-tile.is-done {
  background: var(--bg-soft, #f8f9fa);
}

.course-tile-num {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--tile-accent, var(--accent));
  font-variant-numeric: tabular-nums;
}

.course-tile-title {
  flex: 1;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}

.course-tile.is-done .course-tile-title {
  color: var(--muted);
}

.course-tile-status {
  margin-top: auto;
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
}

.course-tile-status.is-done {
  color: #1a6b3c;
  background: #e8f5ec;
}

.course-tile-status.is-current {
  color: var(--tile-accent, var(--accent));
  background: color-mix(in srgb, var(--tile-accent, var(--accent)) 15%, white);
}

@media (max-width: 400px) {
  .course-tiles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.course-resources {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.course-resources-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-right: 0.25rem;
}

.course-resource-link {
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  padding: 0.2rem 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.course-resource-link:hover {
  color: var(--text);
}

/* —— Lesson reader context —— */
.lesson-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
}

.lesson-context-back {
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
}

.lesson-context-meta {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

.lesson-context-meta strong {
  color: var(--text);
  font-weight: 600;
}

.lesson-context-num {
  font-weight: 700;
  color: var(--text);
}

.lesson-context-sep {
  opacity: 0.5;
}

.lesson-context-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.dash-split {
  display: grid;
  grid-template-columns: 1fr minmax(220px, 280px);
  gap: 1.25rem;
  align-items: start;
}

.dash-quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
}

.dash-quick {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  font-family: inherit;
}

.dash-quick:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dash-quick-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.dash-quick-desc {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.dash-aside {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
}

.dash-skill-list {
  margin: 0 0 0.85rem;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.5;
}

.dash-aside-note {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}

.dash-aside-btn {
  width: 100%;
}

@media (max-width: 900px) {
  .dash-hero {
    grid-template-columns: 1fr;
  }

  .dash-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dash-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .dash-stats {
    grid-template-columns: 1fr;
  }

  .dash-quick-grid {
    grid-template-columns: 1fr;
  }
}

.hero {
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: 2rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.03em;
}

.hero p {
  color: var(--muted);
  max-width: 60ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  box-shadow: var(--shadow);
}

.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  color: var(--text);
}

.card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.content-panel blockquote {
  margin: 1rem 0;
  padding: 0.7rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 8px 8px 0;
}

.content-panel blockquote p {
  margin: 0.25rem 0;
}

.content-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow);
}

.content-panel h1,
.content-panel h2,
.content-panel h3 {
  margin-top: 1.5rem;
  color: var(--text);
}

.content-panel h1:first-child {
  margin-top: 0;
}

.visual-figure {
  margin: 1.25rem 0;
  padding: 0;
  text-align: center;
}

.visual-figure img,
.content-panel .md-img,
img.visual-img {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  min-height: 120px;
  margin: 0 auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  background: var(--surface);
  object-fit: contain;
}

.visual-figure figcaption {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

.visual-gallery {
  display: grid;
  gap: 1.25rem;
  margin: 1rem 0;
}

a.md-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a.md-link:hover {
  color: var(--accent-hover);
}

.module-complete-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin: 1.5rem 0 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.module-complete-hint {
  font-size: 0.85rem;
  color: var(--muted);
  flex: 1;
  min-width: 12rem;
}

.mark-complete-btn {
  background: #6366f1;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  font-size: 0.9rem;
}

.mark-complete-btn:hover {
  background: #4f46e5;
}

.mark-complete-btn.mc-completed {
  background: #16a34a;
}

.mark-complete-btn.mc-completed:hover {
  background: #b91c1c;
}

.mark-complete-btn.mc-completed:hover::after {
  content: " (click to unmark)";
  font-size: 0.8em;
  font-weight: 400;
}

.progress-note {
  font-size: 0.75rem;
  color: #94a3b8;
  font-style: italic;
  margin-top: 8px;
}

.reset-progress-link {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.78rem;
  color: #94a3b8;
  text-decoration: underline;
  cursor: pointer;
  font-family: inherit;
}

.reset-progress-link:hover {
  color: #64748b;
}

.intro-progress-reset {
  margin: 0.75rem 0 0;
}

.exercise-nav,
.module-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.module-footer-nav {
  border-top: none;
  padding-top: 0;
  margin-top: 0.5rem;
}

/* Learning roadmaps — internal flowcharts */
.roadmap-panel {
  margin: 0 0 1.25rem;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.roadmap-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.roadmap-title {
  margin: 0;
  font-size: 1.1rem;
  color: var(--accent);
}

.roadmap-step {
  font-size: 0.85rem;
  color: var(--muted);
}

.roadmap-syllabus,
.roadmap-hint,
.roadmap-program-label,
.roadmap-ref {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0.35rem 0;
}

.roadmap-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0.75rem 0;
  padding: 0.65rem;
  background: var(--bg-subtle);
  border-radius: 8px;
  overflow-x: auto;
}

.roadmap-node {
  min-width: 2rem;
  padding: 0.35rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-family: var(--font);
}

.roadmap-node:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.roadmap-node.is-current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.roadmap-node.is-done {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.roadmap-node.is-optional {
  opacity: 0.75;
  border-style: dashed;
}

.roadmap-arrow {
  color: var(--muted);
  font-size: 0.75rem;
  user-select: none;
}

.roadmap-program {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.5rem 0 0.75rem;
}

.program-pill {
  padding: 0.3rem 0.65rem;
  font-size: 0.78rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  color: var(--text-soft);
  cursor: pointer;
  font-family: var(--font);
}

.program-pill.is-active-track {
  background: var(--accent2-soft);
  border-color: var(--accent2);
  color: var(--text);
  font-weight: 600;
}

.roadmap-topics-title {
  margin: 0.75rem 0 0.35rem;
  font-size: 0.95rem;
}

.roadmap-topics {
  margin: 0 0 0.75rem;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.roadmap-actions {
  margin: 0.5rem 0 0;
}

.roadmap-intro {
  color: var(--text-soft);
  max-width: 52rem;
}

.roadmap-track-card {
  margin: 1.5rem 0;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.roadmap-track-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.roadmap-track-head h2 {
  margin: 0;
  font-size: 1.15rem;
}

.roadmap-module-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.roadmap-module-list li {
  margin: 0.5rem 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

.roadmap-list-link {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.25rem 0;
  border: none;
  background: none;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.95rem;
}

.roadmap-list-skills {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.roadmap-also li {
  color: var(--warn);
}

.roadmap-inline-link {
  border: none;
  background: none;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-size: inherit;
  font-family: inherit;
  text-decoration: underline;
}

/* —— Program & track flowcharts —— */
.roadmap-flow--program {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.35rem 0.25rem;
  margin: 0.75rem 0 1rem;
  padding: 1rem;
  background: linear-gradient(135deg, var(--bg-subtle) 0%, var(--surface2) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
}

.roadmap-flow-phase {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  min-width: 7.5rem;
  max-width: 10rem;
  padding: 0.65rem 0.75rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  text-align: left;
  font-family: var(--font);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

button.roadmap-flow-phase:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.roadmap-flow-phase.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.roadmap-flow-phase.is-complete {
  border-color: var(--accent);
}

.roadmap-flow-phase-idx {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.roadmap-flow-phase-title {
  font-size: 0.88rem;
  line-height: 1.25;
  color: var(--text);
}

.roadmap-flow-phase-stat {
  font-size: 0.75rem;
  color: var(--muted);
}

.roadmap-flow-phase-arrow {
  align-self: center;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0 0.15rem;
  flex-shrink: 0;
}

.roadmap-flow-steps {
  list-style: none;
  margin: 0.75rem 0;
  padding: 0 0 0 0.35rem;
  position: relative;
}

.roadmap-flow-step {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: stretch;
  margin: 0;
  padding: 0 0 0.85rem;
  position: relative;
}

.roadmap-flow-step[data-go] {
  cursor: pointer;
}

.roadmap-flow-step[data-go]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 10px;
}

.roadmap-flow-step:not(:last-child) .roadmap-flow-step-rail::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 2.1rem;
  bottom: -0.85rem;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, var(--accent-soft), var(--border));
}

.roadmap-flow-step-rail {
  position: relative;
  display: flex;
  justify-content: center;
}

.roadmap-flow-step-dot {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-soft);
  z-index: 1;
}

.roadmap-flow-step.is-current .roadmap-flow-step-dot {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.roadmap-flow-step.is-done .roadmap-flow-step-dot {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-hover);
}

.roadmap-flow-step.is-optional .roadmap-flow-step-dot {
  border-style: dashed;
}

.roadmap-flow-step-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  text-align: left;
  cursor: pointer;
  font-family: var(--font);
  transition: border-color 0.15s, box-shadow 0.15s;
  pointer-events: none;
}

.roadmap-flow-step[data-go]:hover .roadmap-flow-step-card {
  border-color: var(--accent);
}

.roadmap-flow-step.is-current .roadmap-flow-step-card {
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.roadmap-flow-step.is-done .roadmap-flow-step-card {
  background: var(--accent-soft);
  border-color: rgba(8, 145, 178, 0.35);
}

.roadmap-flow-step-card strong {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.3;
}

.roadmap-flow-step-skills {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
}

.roadmap-track-focus {
  margin: 0.15rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.roadmap-lesson-index {
  margin: 0.75rem 0 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-subtle);
}

.roadmap-lesson-index summary {
  padding: 0.55rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-soft);
}

.roadmap-lesson-index[open] summary {
  border-bottom: 1px solid var(--border);
}

.roadmap-lesson-index .roadmap-module-list {
  margin: 0;
  padding: 0.5rem 0.85rem 0.85rem;
}

@media (max-width: 720px) {
  .roadmap-flow--program {
    flex-direction: column;
    align-items: stretch;
  }

  .roadmap-flow-phase-arrow {
    align-self: center;
    transform: rotate(90deg);
  }

  .roadmap-flow-phase {
    max-width: none;
  }
}

.exercise-nav:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.practice-box {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.practice-box strong {
  color: var(--accent-hover);
}

.content-panel blockquote.callout-warning {
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  color: #92400e;
}

.content-panel blockquote.callout-result {
  background: #f0fdf4;
  border-left: 4px solid #22c55e;
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  color: #166534;
}

.content-panel .lesson-diagram {
  margin: 1.25rem 0 1.5rem;
  max-width: 100%;
}

.content-panel .lesson-diagram svg {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--bg-subtle, #f8fafc);
}

.content-panel pre {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.content-panel code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface2);
  padding: 0.15em 0.35em;
  border-radius: 4px;
}

.content-panel pre code {
  background: none;
  padding: 0;
}

.content-panel table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}

.content-panel th,
.content-panel td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  text-align: left;
}

.content-panel th {
  background: var(--surface2);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.88rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn.secondary {
  background: var(--surface);
  color: var(--text-soft);
  border: 1px solid var(--border);
}

.btn.secondary:hover {
  background: var(--surface2);
  color: var(--accent);
}

.btn.success {
  background: var(--accent2);
}

.quiz-q {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.quiz-q label {
  display: block;
  margin: 0.35rem 0;
  cursor: pointer;
  color: var(--text-soft);
}

.quiz-result {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 8px;
  background: var(--surface2);
}

.quiz-result.pass {
  border-left: 4px solid var(--accent);
}

.quiz-result.fail {
  border-left: 4px solid var(--danger);
}

.data-table-wrap {
  overflow-x: auto;
  max-height: 400px;
  overflow-y: auto;
}

.data-download-page {
  max-width: 640px;
}

.data-download-lead {
  color: var(--muted);
  margin: 0 0 1.25rem;
  font-size: 0.92rem;
}

.data-download-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.data-download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--dash-radius, 10px);
}

.data-download-meta {
  min-width: 0;
  flex: 1;
}

.data-download-title {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.data-download-filename {
  font-family: var(--mono, monospace);
  font-size: 0.78rem;
  color: var(--muted);
}

.data-download-desc {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--text-soft, var(--muted));
  line-height: 1.4;
}

.data-download-size {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.data-download-btn {
  flex-shrink: 0;
  white-space: nowrap;
}

.data-download-note {
  margin-top: 1.25rem;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 520px) {
  .data-download-item {
    flex-direction: column;
    align-items: stretch;
  }

  .data-download-btn {
    width: 100%;
    text-align: center;
  }
}

.progress-bar {
  height: 8px;
  background: var(--bg-subtle);
  border-radius: 4px;
  margin: 0.75rem 0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%);
  transition: width 0.35s ease;
}

.progress-label {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}

.alert {
  padding: 0.85rem 1.1rem;
  border-radius: 8px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: var(--text-soft);
}

.alert.warn {
  background: #faf3e3;
  border-color: #e8d4a8;
  color: #5c4a2a;
}

#py-output {
  font-family: var(--mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  min-height: 120px;
  margin-top: 0.75rem;
}

textarea.code-input {
  width: 100%;
  min-height: 200px;
  font-family: var(--mono);
  font-size: 0.85rem;
  background: var(--bg-subtle);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  resize: vertical;
}

/* Interview prep accordion (Python lessons) */
.interview-prep-section {
  margin: 40px 0;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
}

.interview-prep-section > h2 {
  background: #1e3a5f;
  color: white;
  padding: 16px 20px;
  margin: 0;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.interview-prep-section > h2::before {
  content: '🎯';
}

.interview-prep-intro {
  background: #f8fafc;
  padding: 16px 20px;
  border-bottom: 1px solid #e2e8f0;
  font-size: 0.85rem;
  color: #475569;
}

.interview-prep-intro ul {
  margin: 8px 0 0 16px;
  padding: 0;
}

.interview-prep-intro li {
  margin-bottom: 4px;
}

.interview-questions {
  padding: 8px 0;
}

.interview-q-item {
  border-bottom: 1px solid #f1f5f9;
}

.interview-q-item:last-child {
  border-bottom: none;
}

.interview-q-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}

.interview-q-btn:hover {
  background: #f8fafc;
}

.iq-number {
  font-size: 0.7rem;
  font-weight: 700;
  color: #2563eb;
  background: #eff6ff;
  padding: 2px 8px;
  border-radius: 20px;
  flex-shrink: 0;
}

.iq-text {
  flex: 1;
  font-size: 0.92rem;
  font-weight: 600;
  color: #1e3a5f;
}

.iq-toggle {
  color: #2563eb;
  font-size: 1.1rem;
  font-weight: 300;
  flex-shrink: 0;
}

.interview-q-answer {
  padding: 4px 20px 16px 52px;
  font-size: 0.88rem;
  color: #334155;
  line-height: 1.7;
}

.interview-q-answer p {
  margin: 0 0 8px;
}

.interview-q-answer code {
  background: #f1f5f9;
  color: #0369a1;
  padding: 1px 6px;
  border-radius: 4px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85em;
}

.iq-tip {
  background: #fffbeb;
  border-left: 3px solid #f59e0b;
  padding: 8px 12px;
  border-radius: 0 6px 6px 0;
  font-size: 0.82rem;
  color: #92400e;
  margin-top: 8px;
}

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

  .main {
    padding: 1.25rem;
  }

  .dashboard-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .avatar {
    margin: 0 auto;
  }
}