/* =============================================
   TLM - Trento Local Minimum — custom styles
   Override the SexyJekyll theme
   ============================================= */

/* --- Hide "Skip to main content" link --- */
.skip-to-content {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-to-content:focus {
  position: fixed;
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  overflow: visible;
  z-index: 9999;
  background: var(--bg-primary, #0f0f23);
  color: var(--text-primary, #fff);
  padding: 0.5rem 1rem;
  border-radius: 4px;
}

/* --- Hero sub-elements --- */
.hero-role {
  display: block;
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary, #fff);
  margin-bottom: 0.15rem;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-secondary, #e0e0ff);
  margin-bottom: 0.1rem;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

.hero-tagline {
  font-style: normal;
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  color: var(--text-secondary, #e0e0ff);
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
  opacity: 0.8;
  margin-bottom: 0.25rem;
  line-height: 1.6;
  max-width: 600px;
}

.hero-description {
  max-width: 600px;
  font-size: clamp(0.85rem, 1.6vw, 1rem);
  color: var(--text-secondary, #e0e0ff);
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
  opacity: 0.9;
  line-height: 1.6;
}

/* --- Upcoming sessions section --- */
.upcoming-sessions {
  margin: 3rem auto;
  max-width: 1400px;
  padding: 0 2rem;
}

.upcoming-sessions h2 {
  margin-bottom: 0.25rem;
}

.upcoming-subtitle {
  color: var(--text-tertiary, #a0a0d0);
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
}

/* --- Session table (used in home and labs) --- */
.session-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.session-table th {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 2px solid var(--border, rgba(168,85,247,0.2));
  font-weight: 600;
}

.session-table td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border, rgba(168,85,247,0.1));
  vertical-align: top;
}

.session-table tr:last-child td {
  border-bottom: none;
}

.session-table a {
  color: var(--color-purple, #a855f7);
  text-decoration: none;
  transition: color 0.2s ease;
}

.session-table a:visited {
  color: var(--color-purple, #a855f7);
}

.session-table a:hover {
  color: var(--accent-hover, #c084fc);
}

/* --- Type badges --- */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-talk {
  background-color: #1e3a5f;
  color: #93c5fd;
}

.badge-lab {
  background-color: #14532d;
  color: #86efac;
}

/* --- Person cards --- */
.person-card {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--bg-secondary, rgba(20,20,40,0.7));
  border: 1px solid var(--border, rgba(168,85,247,0.2));
  border-radius: var(--radius-md, 1rem);
}

.person-card--organizer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.person-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border, rgba(168,85,247,0.3));
  flex-shrink: 0;
}

.person-info {
  flex: 1;
}

.person-card h3 {
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary, #fff);
  margin: 0 0 0.2rem;
}

.person-role {
  font-size: 0.85rem;
  color: var(--text-tertiary, #a0a0d0);
  margin: 0 0 0.6rem;
}

.person-date {
  font-size: 0.8rem;
  color: var(--text-tertiary, #a0a0d0);
  margin-left: 0.5rem;
}

.person-links {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.person-links a {
  color: var(--color-purple, #a855f7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.person-links a:hover {
  color: var(--accent-hover, #c084fc);
}

/* --- Markdown tables (labs, etc.) --- */
.page-container table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 1.5rem 0;
}

.page-container th {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 2px solid var(--border, rgba(168,85,247,0.2));
  font-weight: 600;
  color: var(--text-primary, #fff);
}

.page-container td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border, rgba(168,85,247,0.1));
  color: var(--text-secondary, #e0e0ff);
}

.page-container em {
  color: var(--text-tertiary, #a0a0d0);
}

/* --- Page content container --- */
.page-content {
  min-height: 60vh;
}

.page-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.page-container h1 {
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--color-purple, #a855f7) 0%, var(--color-pink, #ec4899) 25%, var(--color-cyan, #06b6d4) 55%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-container h2 {
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary, #fff);
}

.page-container p {
  color: var(--text-secondary, #e0e0ff);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.page-container strong {
  color: var(--text-primary, #fff);
}

.page-container a {
  color: var(--color-purple, #a855f7);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-container a:hover {
  color: var(--accent-hover, #c084fc);
}

.page-container ul, .page-container ol {
  color: var(--text-secondary, #e0e0ff);
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.page-container li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

/* --- About page cards --- */
.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.about-card {
  background: var(--bg-secondary, rgba(20,20,40,0.7));
  border: 1px solid var(--border, rgba(168,85,247,0.2));
  border-radius: var(--radius-md, 1rem);
  padding: 1.5rem;
}

.about-card h3 {
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary, #fff);
  margin-bottom: 0.5rem;
}

.about-card p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- Survey embed --- */
.survey-frame {
  background: #fff;
  border-radius: var(--radius-md, 1rem);
  overflow: hidden;
  border: 1px solid var(--border, rgba(168,85,247,0.2));
  margin-top: 1rem;
}

.survey-frame iframe {
  display: block;
  border: none;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border, rgba(168,85,247,0.2));
  padding: 2rem 0 1.5rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.footer-title {
  font-family: var(--font-heading, 'Sora', system-ui, sans-serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary, #fff);
  margin: 0;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--text-secondary, #e0e0ff);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--color-purple, #a855f7);
}

.footer-description {
  font-size: 0.85rem;
  color: var(--text-tertiary, #a0a0d0);
  line-height: 1.5;
  margin: 0 0 1.5rem;
}

.footer-bottom {
  border-top: 1px solid var(--border, rgba(168,85,247,0.15));
  padding-top: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-tertiary, #a0a0d0);
}

/* --- Mobile --- */
@media (max-width: 768px) {
  /* Nav: smaller gaps, wrap if needed */
  .nav-container {
    padding: 1rem;
  }

  .nav-links {
    gap: 0.8rem;
    flex-wrap: wrap;
  }

  .nav-link {
    font-size: 0.9rem;
  }

  /* Hero: full width, tighter */
  .hero {
    min-height: 50vh;
    padding: 1.5rem 1rem;
  }

  .hero-name {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

  /* Sessions: stack as cards instead of table */
  .session-table thead {
    display: none;
  }

  .session-table,
  .session-table tbody,
  .session-table tr,
  .session-table td {
    display: block;
    width: 100%;
  }

  .session-table tr {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border, rgba(168,85,247,0.1));
  }

  .session-table td {
    padding: 0.15rem 0;
    border-bottom: none;
  }

  .session-table td:first-child {
    font-weight: 600;
    color: var(--text-tertiary, #a0a0d0);
    font-size: 0.85rem;
  }

  .upcoming-sessions {
    padding: 0 1rem;
  }

  /* Pages */
  .page-container {
    padding: 2rem 1rem;
  }

  .about-cards {
    grid-template-columns: 1fr;
  }

  .person-card--organizer {
    flex-direction: column;
    text-align: center;
  }

  /* Footer */
  .footer-row {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .footer-nav {
    gap: 1rem;
  }
}