/* ============================================
   Xavigate Training Runtime — App Styles
   Mobile-first. Clean. App-like.
   ============================================ */

/* ============ Layout ============ */
.container { max-width: var(--layout-max); margin: 0 auto; padding: 0 var(--space-md); }
.narrow { max-width: var(--content-narrow); }
.mid { max-width: var(--content-mid); }

/* ============ Header ============ */
.header {
  height: 52px;
  background: var(--surface-card);
  border-bottom: 1px solid var(--surface-card-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header__container {
  max-width: var(--layout-max);
  margin: 0 auto;
  padding: 0 1rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (min-width: 600px) {
  .header__container { padding: 0 var(--space-md); }
}
.header__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-primary);
  text-decoration: none;
}
.header__brand:hover { text-decoration: none; }
.header__mark { width: 22px; height: 22px; color: var(--thread-renergence); }
.header__nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.header__link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.25rem 0;
}
.header__link:hover { color: var(--text-primary); text-decoration: none; }
.header__link--btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: 0.25rem 0;
}
.header__link--btn:hover { color: var(--text-primary); }

/* ============ Hero ============ */
.hero {
  background: var(--thread-renergence);
  color: #fff;
  padding: var(--space-lg) 1rem;
  text-align: center;
}
@media (min-width: 600px) {
  .hero { padding: var(--space-xl) var(--space-md); }
}
.hero h1 { color: #fff; margin-bottom: var(--space-xs); font-size: var(--text-2xl); }
.hero p { color: rgba(255,255,255,0.8); font-size: var(--text-md); margin: 0; }

/* ══════════════════════════════════
   DASHBOARD (my-training)
   ══════════════════════════════════ */
.dash {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1rem 4rem;
  min-height: calc(100vh - 52px - 80px);
}
@media (min-width: 600px) {
  .dash { padding: 2.5rem var(--space-md) 4rem; }
}

.dash__greeting { margin-bottom: 1.5rem; }
.dash__title {
  font-family: var(--font-title);
  font-size: clamp(1.25rem, 2vw + 0.5rem, 1.75rem);
  color: var(--text-primary);
  margin: 0 0 0.25rem;
}
.dash__subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}
.dash__grid {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.dash__loading {
  text-align: center;
  padding: 3rem 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
}
.dash__empty {
  text-align: center;
  padding: 3rem 0;
}
.dash__empty h2 { color: var(--text-secondary); font-size: var(--text-xl); margin-bottom: var(--space-xs); }
.dash__empty p { color: var(--text-muted); margin-bottom: var(--space-md); }
.dash__error { color: var(--status-error); text-align: center; padding: var(--space-md); }

/* ── Dashboard Course Card ── */
.dash-card {
  display: grid;
  grid-template-columns: 4px 1fr auto;
  align-items: center;
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.12s;
}
.dash-card:hover {
  border-color: var(--card-thread, var(--thread-renergence));
  box-shadow: 0 4px 16px rgba(13,17,100,0.08);
  transform: translateY(-1px);
  text-decoration: none;
}
.dash-card:active { transform: translateY(0); box-shadow: none; }
.dash-card__thread {
  width: 4px;
  align-self: stretch;
  background: var(--card-thread, var(--thread-renergence));
  border-radius: 4px 0 0 4px;
}
.dash-card__content {
  padding: 0.875rem 0.75rem 0.875rem 1rem;
  min-width: 0;
}
@media (min-width: 600px) {
  .dash-card__content { padding: 1rem 1rem 1rem 1.25rem; }
}
.dash-card__header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}
.dash-card__title {
  font-family: var(--font-title);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}
.dash-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}
.dash-card__progress {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.dash-card__bar {
  flex: 1;
  height: 4px;
  background: var(--surface-panel);
  border-radius: 2px;
  overflow: hidden;
  max-width: 120px;
}
.dash-card__bar-fill {
  height: 100%;
  background: var(--card-thread, var(--thread-renergence));
  border-radius: 2px;
  width: 0%;
  transition: width 0.5s ease;
}
.dash-card__pct {
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.dash-card__arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  margin-right: 0.875rem;
  opacity: 0.35;
  transition: opacity 0.15s, transform 0.15s;
}
.dash-card:hover .dash-card__arrow {
  opacity: 0.7;
  transform: translateX(2px);
}

/* ============ Catalog Cards ============ */
.catalog {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-lg) 1rem;
}
@media (min-width: 600px) {
  .catalog { padding: var(--space-lg) var(--space-md); }
}

.course-card {
  background: var(--surface-card);
  border: 1px solid var(--surface-card-border);
  border-radius: 10px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.course-card:hover {
  box-shadow: var(--shadow-elevated);
  border-color: var(--thread-renergence);
}
.course-card__status {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: var(--space-xs);
  align-self: flex-start;
}
.course-card__status--enrolled { background: var(--status-pass-bg); color: var(--status-pass); }
.course-card__status--available { background: var(--surface-panel); color: var(--text-secondary); }
.course-card__status--completed { background: #e8f5e9; color: #2e7d32; }
.course-card__title { font-family: var(--font-title); font-size: var(--text-lg); margin-bottom: 0.4rem; }
.course-card__info { font-size: var(--text-sm); color: var(--text-secondary); flex: 1; line-height: 1.5; }
.course-card__footer { margin-top: var(--space-sm); display: flex; justify-content: space-between; align-items: center; }

/* ============ Progress Bar (generic) ============ */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--surface-panel);
  border-radius: 3px;
  overflow: hidden;
  margin: var(--space-xs) 0;
}
.progress-bar__fill {
  height: 100%;
  background: var(--thread-renergence);
  border-radius: 3px;
  transition: width 0.3s;
}

/* ============ Lesson List ============ */
.lesson-list { list-style: none; }
.lesson-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--surface-divider);
}
.lesson-item:last-child { border-bottom: none; }
.lesson-item__icon { width: 24px; text-align: center; font-size: 1rem; flex-shrink: 0; }
.lesson-item__icon--completed { color: var(--status-pass); }
.lesson-item__icon--current { color: var(--thread-renergence); font-weight: 700; }
.lesson-item__icon--locked { color: var(--text-muted); }
.lesson-item__title { flex: 1; }
.lesson-item__title a { color: var(--text-primary); }
.lesson-item__meta { font-size: var(--text-sm); color: var(--text-secondary); }
.lesson-item--locked { opacity: 0.5; }
.lesson-item--completed .lesson-item__icon { color: var(--status-pass); }
.lesson-item--current {
  background: var(--surface-panel);
  margin: 0 calc(-1 * var(--space-md));
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
}

/* ============ Lesson Content ============ */
.lesson {
  max-width: var(--content-mid);
  margin: 0 auto;
  padding: var(--space-md) 1rem var(--space-xl);
}
@media (min-width: 600px) {
  .lesson { padding: var(--space-lg) var(--space-md) var(--space-xl); }
}
.lesson h1 { margin-bottom: var(--space-md); }
.lesson h2 { margin-top: var(--space-lg); margin-bottom: var(--space-sm); }
.lesson h3 { margin-top: var(--space-md); }
.lesson p { margin-bottom: var(--space-sm); line-height: 1.7; }
.lesson ul, .lesson ol { margin-bottom: var(--space-sm); padding-left: 1.5rem; }
.lesson li { margin-bottom: 0.4rem; line-height: 1.6; }
.lesson table { width: 100%; border-collapse: collapse; margin: var(--space-sm) 0; font-size: var(--text-sm); }
.lesson th, .lesson td { padding: 0.5rem 0.75rem; border: 1px solid var(--surface-divider); text-align: left; }
.lesson th { background: var(--surface-panel); font-weight: 600; }
.lesson strong { color: var(--text-primary); }
.lesson blockquote {
  border-left: 3px solid var(--thread-renergence);
  padding-left: var(--space-sm);
  color: var(--text-secondary);
  margin: var(--space-sm) 0;
}

/* Breadcrumb */
.breadcrumb {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb__separator { color: var(--text-muted); }

/* Lesson navigation */
.nav-section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--surface-card-border);
}
.nav-section a {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: 0.5rem 0;
}
.nav-section a:hover { color: var(--text-primary); }

/* ============ Submission Box ============ */
.submission {
  background: var(--surface-panel);
  border-radius: 10px;
  padding: 1.25rem;
  margin-top: var(--space-lg);
}
@media (min-width: 600px) {
  .submission { padding: var(--space-md); }
}
.submission__title { margin-bottom: var(--space-sm); font-size: var(--text-lg); }
.submission__form { margin-top: var(--space-sm); }

.form__group { margin-bottom: var(--space-sm); }
.form__label { display: block; font-size: var(--text-sm); font-weight: 500; margin-bottom: 0.3rem; color: var(--text-body); }
.form__textarea {
  width: 100%;
  min-height: 200px;
  padding: 0.875rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--surface-card);
  resize: vertical;
  line-height: 1.65;
  color: var(--text-body);
}
@media (min-width: 600px) {
  .form__textarea { min-height: 280px; }
}
.form__textarea:focus {
  outline: none;
  border-color: var(--thread-renergence);
}
.form__error {
  font-size: var(--text-sm);
  color: var(--status-error);
  margin-top: 0.35rem;
}
.form__button {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  background: var(--thread-renergence);
  color: #fff;
  font-weight: 600;
  font-size: var(--text-base);
  font-family: var(--font-body);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
  text-align: center;
}
.form__button:hover { opacity: 0.9; text-decoration: none; }
.form__button:disabled { opacity: 0.5; cursor: not-allowed; }

.word-count {
  display: flex;
  justify-content: space-between;
  margin-top: 0.35rem;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.word-count--error span:first-child { color: var(--status-error); }

/* ============ Evaluation Result ============ */
.evaluation {
  border-radius: 10px;
  padding: 1.25rem;
  margin-top: var(--space-md);
}
@media (min-width: 600px) {
  .evaluation { padding: var(--space-md); }
}
.evaluation__title { margin-bottom: var(--space-sm); }
.evaluation__decision {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.evaluation__badge {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
}
.evaluation__badge--pass { background: var(--status-pass-bg); color: var(--status-pass); }
.evaluation__badge--revise { background: var(--status-revise-bg); color: var(--status-revise); }
.evaluation__badge--review { background: var(--status-review-bg); color: var(--status-review); }
.evaluation__score { font-size: var(--text-sm); color: var(--text-secondary); }
.evaluation__feedback { line-height: 1.6; margin-bottom: var(--space-sm); }
.evaluation__feedback-title { font-weight: 600; margin-bottom: 0.35rem; }
.evaluation__feedback-text { color: var(--text-body); }
.evaluation__revisions { margin-top: var(--space-sm); }
.evaluation__revisions-title { font-weight: 600; margin-bottom: 0.35rem; }
.evaluation__revisions-list { padding-left: 1.5rem; }
.evaluation__revisions-list li { margin-bottom: 0.4rem; }

/* ============ Review Queue ============ */
.review-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.review-table th {
  text-align: left;
  padding: 0.75rem;
  background: var(--surface-panel);
  font-weight: 600;
  border-bottom: 2px solid var(--surface-divider);
}
.review-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--surface-divider);
}
.review-table tr:hover { background: var(--surface-panel); }

/* ============ Status Badge ============ */
.badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}
.badge--pass { background: var(--status-pass-bg); color: var(--status-pass); }
.badge--revise { background: var(--status-revise-bg); color: var(--status-revise); }
.badge--review { background: var(--status-review-bg); color: var(--status-review); }
.badge--locked { background: var(--surface-panel); color: var(--text-muted); }
.badge--active { background: #e3f2fd; color: #1565c0; }
.badge--enrolled { background: var(--status-pass-bg); color: var(--status-pass); }
.badge--completed { background: #e8f5e9; color: #2e7d32; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 0.55rem 1.25rem;
  font-weight: 600;
  font-size: var(--text-sm);
  font-family: var(--font-body);
  border-radius: 8px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.9; text-decoration: none; }
.btn--primary { background: var(--thread-renergence); color: #fff; }
.btn--secondary { background: var(--surface-panel); color: var(--text-primary); }
.btn--small { padding: 0.35rem 0.75rem; font-size: var(--text-xs); }

/* ============ Forms (login) ============ */
.form-group { margin-bottom: var(--space-sm); }
.form-label { display: block; font-size: var(--text-sm); font-weight: 500; margin-bottom: 0.3rem; }
.form-input {
  width: 100%;
  padding: 0.65rem 0.875rem;
  background: var(--surface-page);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text-primary);
}
.form-input:focus { outline: none; border-color: var(--thread-renergence); background: #fff; }

/* ============ Login ============ */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--thread-renergence) 0%, #1a0d3d 50%, var(--thread-hnr) 100%);
  padding: 1rem;
}
.login-card {
  background: var(--surface-card);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  text-align: center;
}
.login-card h1 { font-size: 1.35rem; margin-bottom: var(--space-xs); }
.login-card p { font-size: var(--text-sm); color: var(--text-secondary); }

/* ============ Messages ============ */
.msg {
  padding: 0.625rem 0.875rem;
  border-radius: 6px;
  font-size: var(--text-sm);
  margin-bottom: var(--space-sm);
}
.msg--error { background: var(--status-error-bg); color: var(--status-error); border: 1px solid #f5c6c2; }
.msg--success { background: var(--status-pass-bg); color: var(--status-pass); border: 1px solid #b7e4c7; }
.msg--info { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

/* ============ Footer ============ */
.footer {
  border-top: 1px solid var(--surface-card-border);
  padding: 0.875rem 0;
  background: var(--surface-card);
}
.footer__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
  max-width: var(--layout-max);
  margin: 0 auto;
  font-size: var(--text-sm);
  color: var(--text-muted);
}
@media (min-width: 600px) {
  .footer__container { padding: 0 var(--space-md); }
}
.footer__copy { color: var(--text-muted); }
.footer__links {
  display: flex;
  gap: 1rem;
}
.footer__links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
}
.footer__links a:hover { color: var(--text-primary); text-decoration: underline; }
@media (max-width: 480px) {
  .footer__container { flex-direction: column; gap: 0.25rem; text-align: center; }
}

/* ============ Empty State ============ */
.empty {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  color: var(--text-secondary);
}
.empty__title { color: var(--text-secondary); font-size: var(--text-xl); }
.empty__text { margin: var(--space-xs) 0 var(--space-md); }

/* ============ Loading ============ */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--surface-panel);
  border-top-color: var(--thread-renergence);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============ Responsive ============ */
@media (max-width: 640px) {
  .course-grid { grid-template-columns: 1fr; }
}