/* ============================================================
   Convergence Workshop — Shared Stylesheet
   ============================================================ */

/* --- Reset & Base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg:        #fff8f0;
  --color-surface:   #ffecd9;
  --color-primary:   #111111;
  --color-accent:    #333333;
  --color-accent2:   #555555;
  --color-text:      #222222;
  --color-muted:     #777777;
  --color-border:    #f0d9c0;
  --color-orange:    #c45c0a;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Georgia', serif;

  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  --max-w: 1080px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

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

.card-bio a { color: var(--color-orange); }
.card-bio a:hover { color: #a34d08; }

img { max-width: 100%; display: block; }

/* --- Navigation ------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-brand:hover { text-decoration: none; color: #c8dff5; }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.85rem;
  color: rgba(255,255,255,.82);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background .15s, color .15s;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255,255,255,.12);
  color: #fff;
  text-decoration: none;
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .2s;
}

/* --- Page Hero -------------------------------------------- */
.page-hero {
  background: linear-gradient(135deg, #111111 0%, #1a1a1a 100%);
  color: #fff;
  padding: 4rem 1.5rem 3rem;
  text-align: center;
}

.page-hero .workshop-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  margin-bottom: 0.75rem;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.page-hero .subtitle {
  font-size: 1.05rem;
  color: rgba(255,255,255,.75);
  max-width: 580px;
  margin: 0 auto;
}

.page-hero .badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: rgba(255,255,255,.12);
  color: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.2);
}

/* --- Sub-page hero (smaller) ------------------------------ */
.page-hero.compact {
  padding: 2.5rem 1.5rem 2rem;
}
.page-hero.compact h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); }

/* --- Main layout ------------------------------------------ */
.main-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

/* --- Section block ---------------------------------------- */
.section-block {
  margin-bottom: 3.5rem;
}

.section-block h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  border-left: 4px solid var(--color-accent);
  padding-left: 0.85rem;
  margin-bottom: 1.25rem;
}

.section-block h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 1.25rem 0 0.5rem;
}

/* Filled-in text content (abstract, descriptions) */
.abstract-text p {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.1rem;
  text-align: left;
}
.abstract-text p:last-child { margin-bottom: 0; }

/* Placeholder box (for content not yet written) */
.placeholder {
  background: var(--color-surface);
  border: 1.5px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  color: var(--color-muted);
  font-style: italic;
  text-align: center;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Card grid -------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: box-shadow .2s, transform .2s;
}

.card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,.13);
  transform: translateY(-2px);
}

.card .card-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  margin-bottom: 1rem;
  object-fit: cover;
}

.card .card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.2rem;
}

.card .card-role {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.card .card-bio {
  font-size: 0.88rem;
  color: var(--color-text);
}

/* --- Info table ------------------------------------------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.info-table th,
.info-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  background: var(--color-surface);
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* --- Button ----------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, transform .1s;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
}
.btn-primary:hover { background: #444444; text-decoration: none; transform: translateY(-1px); }

/* --- Calendar wrapper ------------------------------------- */
#calendar-container {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

/* Override FullCalendar colours */
.fc-toolbar-title { color: var(--color-primary) !important; font-size: 1.1rem !important; }

/* Custom event content: title + location + description */
.fc-event-custom {
  padding: 2px 3px;
  overflow: hidden;
  width: 100%;
}
.fc-event-title-custom {
  font-weight: 700;
  font-size: 0.82rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.fc-event-loc {
  font-size: 0.72rem;
  opacity: 0.88;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.fc-event-loc::before { content: '\1F4CD\00A0'; } /* 📍 */
.fc-event-desc {
  font-size: 0.72rem;
  opacity: 0.82;
  margin-top: 2px;
  white-space: normal;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.fc-button-primary { background: var(--color-accent) !important; border-color: var(--color-accent) !important; }
.fc-button-primary:hover { background: #444444 !important; border-color: #444444 !important; }
.fc-button-active { background: var(--color-primary) !important; border-color: var(--color-primary) !important; }
.fc-event { background: var(--color-accent) !important; border-color: var(--color-accent) !important; }

/* --- Venue cards + map ------------------------------------ */
.venue-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.venue-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  box-shadow: var(--shadow);
}

.venue-card .venue-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 0.2rem;
}

.venue-card .venue-address {
  font-size: 0.88rem;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.venue-card .venue-note {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

#venue-map {
  width: 100%;
  height: 380px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

/* --- Registration embed wrapper --------------------------- */
#registration-embed {
  min-height: 480px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

/* --- Footer ----------------------------------------------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.65);
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.83rem;
}

.site-footer a { color: rgba(255,255,255,.8); }
.site-footer a:hover { color: #fff; }

/* --- Responsive ------------------------------------------- */
@media (max-width: 680px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 56px; left: 0; right: 0; background: var(--color-primary); padding: 0.5rem 1rem 1rem; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .card-grid { grid-template-columns: 1fr; }
}