/* =========================================================
   Cybersecurity Conferences — Theme overrides
   Teal / emerald palette to complement the cyber (navy/orange)
   and AI/ML (violet/indigo) services.
   ========================================================= */

/* ── Colour variable overrides ──────────────────────────── */
:root {
  --colour-bg:          #f0fdf9;
  --colour-bg-alt:      #e6faf5;
  --colour-primary:     #0f4c45;
  --colour-primary-mid: #0d9488;
  --colour-accent:      #0d9488;

}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  background: linear-gradient(135deg, #022c22 0%, #064e3b 55%, #065f46 100%);
  border-bottom-color: #0d9488;
}
.site-header::before {
  background: radial-gradient(
    ellipse 70% 120% at 20% 50%,
    rgba(13, 148, 136, 0.22) 0%,
    transparent 70%
  );
}
.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(52,211,153,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

/* ── Nav buttons ─────────────────────────────────────────── */
.btn-nav--cyber {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
}
.btn-nav--cyber:hover {
  background: rgba(59, 130, 246, 0.3);
}
.btn-nav--aiml {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(139, 92, 246, 0.4);
}
.btn-nav--aiml:hover {
  background: rgba(139, 92, 246, 0.3);
}

/* ── Score / accent bar ──────────────────────────────────── */
.score-bar-fill { background: #0d9488; }
.score-value    { color: #0f766e; }

/* ── Card title hover ────────────────────────────────────── */
.card-title-link:hover,
.event-link:hover { color: #0d9488; }

/* ── Filter chip active — overrides tag-chip colour when selected ── */
.filter-chip.active,
.filter-chip.tag-chip.active {
  background: #0d9488 !important;
  border-color: #0d9488 !important;
  color: #fff !important;
  box-shadow: 0 0 0 3px rgb(13 148 136 / 0.2);
}

/* ── Search focus ring ────────────────────────────────────── */
.search-input:focus {
  border-color: #0d9488;
  box-shadow: 0 0 0 3px rgb(13 148 136 / 0.15);
}

/* ── Section heading accent bar ──────────────────────────── */
.section-heading { border-left-color: #0d9488; }

/* ── Method card top accent ──────────────────────────────── */
.method-card { border-top: 3px solid #0d9488; }
.method-icon { color: #0d9488; }

/* ── Back-to-top button ──────────────────────────────────── */
.back-to-top       { background: #0d9488; }
.back-to-top:hover { background: #0f766e; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { background: #022c22; }

/* ── View-toggle active ──────────────────────────────────── */
.view-toggle-btn.active .view-toggle-label,
.view-toggle-btn.active .view-toggle-icon { color: #0d9488; }

/* ── Clear-filters / link button ─────────────────────────── */
.btn-clear-filters:hover { border-color: #0d9488; color: #0d9488; }
.link-btn { color: #0d9488; }

/* ── Expand toggle hover ─────────────────────────────────── */
.expand-toggle:hover { border-color: #5eead4; color: #0f766e; }

/* ══════════════════════════════════════════════════════════
   Conferences-specific components
   ══════════════════════════════════════════════════════════ */

/* ── Controls bar ────────────────────────────────────────── */
.controls-bar {
  background: var(--colour-bg-alt);
  border-bottom: 1px solid var(--colour-border);
  padding: 0.75rem 0;
}
.controls-bar__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.search-wrap { flex: 1; min-width: 200px; }

/* ── Tag filter bar ──────────────────────────────────────── */
.tag-filter-bar {
  background: var(--colour-bg);
  border-bottom: 1px solid var(--colour-border);
  padding: 0.5rem 0;
}
.tag-filter-bar__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

/* ── Tag chips ───────────────────────────────────────────── */
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid currentColor;
  background: transparent;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}
.tag-chip:hover  { opacity: 0.8; }
.tag-chip.active { background: #0d9488; color: #fff; border-color: #0d9488; }

/* Tag colour families */
.tag-chip--hacking           { color: #b91c1c; border-color: #fca5a5; background: #fef2f2; }
.tag-chip--industry          { color: #1d4ed8; border-color: #93c5fd; background: #eff6ff; }
.tag-chip--ctf               { color: #92400e; border-color: #fcd34d; background: #fffbeb; }
.tag-chip--training          { color: #065f46; border-color: #6ee7b7; background: #ecfdf5; }
.tag-chip--research          { color: #4338ca; border-color: #a5b4fc; background: #eef2ff; }
.tag-chip--beginner-friendly { color: #0f766e; border-color: #5eead4; background: #f0fdfa; }
.tag-chip--regional          { color: #334155; border-color: #94a3b8; background: #f8fafc; }
.tag-chip--free              { color: #166534; border-color: #86efac; background: #f0fdf4; }
.tag-chip--virtual           { color: #5b21b6; border-color: #c4b5fd; background: #f5f3ff; }
.tag-chip--government        { color: #1e3a5f; border-color: #7dd3fc; background: #f0f9ff; }
.tag-chip--threat-intel      { color: #9d174d; border-color: #f9a8d4; background: #fdf2f8; }
.tag-chip--malware           { color: #1a0d18; border-color: #d8b4fe; background: #fdf4ff; }
.tag-chip--appsec            { color: #713f12; border-color: #fcd34d; background: #fefce8; }
.tag-chip--privacy           { color: #1e293b; border-color: #cbd5e1; background: #f1f5f9; }
.tag-chip--offensive         { color: #7c2d12; border-color: #fb923c; background: #fff7ed; }
.tag-chip--defensive         { color: #14532d; border-color: #86efac; background: #f0fdf4; }
.tag-chip--academic          { color: #312e81; border-color: #a5b4fc; background: #eef2ff; }
.tag-chip--enterprise        { color: #1e40af; border-color: #93c5fd; background: #eff6ff; }

/* ── Event cards ─────────────────────────────────────────── */
.events-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 2rem;
}
.month-heading {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--colour-text-muted);
  margin: 1.5rem 0 0.75rem;
}
.month-heading:first-child { margin-top: 0; }

.event-card {
  display: flex;
  gap: 1rem;
  background: var(--colour-card);
  border: 1px solid var(--colour-border);
  border-left: 3px solid #0d9488;
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.event-card:hover {
  border-color: var(--colour-border-hover);
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.06);
}
.event-card[data-status="ongoing"] {
  border-left-color: #059669;
  background: #f0fdf4;
}

/* Date badge */
.event-date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 3.2rem;
  background: #0d9488;
  color: #fff;
  border-radius: 0.375rem;
  padding: 0.4rem 0.5rem;
  text-align: center;
  align-self: flex-start;
  flex-shrink: 0;
}
.event-date-month { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.08em; line-height: 1.2; }
.event-date-day   { font-size: 1.5rem; font-weight: 800; line-height: 1; }

.event-body { flex: 1; min-width: 0; }

.event-header { display: flex; align-items: flex-start; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.3rem; }
.event-name   { margin: 0; font-size: 1rem; font-weight: 600; }
.event-link   { color: var(--colour-text); text-decoration: none; }
.event-link:hover { color: #0d9488; }
.ext-link-icon { font-size: 0.75rem; color: var(--colour-text-muted); }
.event-badges { display: flex; gap: 0.3rem; flex-wrap: wrap; }

.event-status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 600;
  border: 1px solid;
}
.event-status-badge--ongoing { background: #ecfdf5; color: #065f46; border-color: #6ee7b7; }
.event-status-badge--free    { background: #f0fdf4; color: #14532d; border-color: #86efac; }
.event-status-badge--virtual { background: #f5f3ff; color: #5b21b6; border-color: #c4b5fd; }

.event-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--colour-text-muted);
  margin-bottom: 0.5rem;
}
.event-location, .event-dates, .cfp-deadline { white-space: nowrap; }
.meta-separator { color: var(--colour-border); }

.event-description {
  font-size: 0.85rem;
  color: var(--colour-text-mid);
  margin: 0 0 0.6rem;
  line-height: 1.5;
}
.event-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; }

/* ── Stat pills ──────────────────────────────────────────── */
.stat-pill--active { background: rgba(5, 150, 105, 0.25); }
.stat-pill--accent { background: rgba(13, 148, 136, 0.2); }

/* ── No results ──────────────────────────────────────────── */
.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--colour-text-muted);
  font-size: 0.95rem;
}

/* ── View content panels ─────────────────────────────────── */
.view-content { display: none; }
.view-content--active { display: block; }

/* ── Calendar ────────────────────────────────────────────── */
.calendar-nav {
  max-width: 780px;
  margin: 1.25rem auto 0.75rem;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.cal-nav-btn {
  background: var(--colour-bg-alt);
  border: 1px solid var(--colour-border);
  border-radius: 0.375rem;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font-size: 1rem;
  color: var(--colour-text);
  transition: background 0.12s;
}
.cal-nav-btn:hover { background: #ccfbf1; }
.cal-month-label {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--colour-primary);
  margin: 0;
}
.calendar-grid {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.25rem 1rem;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.cal-day-header {
  text-align: center;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--colour-text-muted);
  padding: 0.3rem 0;
}
.cal-day {
  min-height: 4.5rem;
  background: var(--colour-card);
  border: 1px solid var(--colour-border);
  border-radius: 0.25rem;
  padding: 0.3rem;
  font-size: 0.75rem;
}
.cal-day--empty { background: transparent; border-color: transparent; }
.cal-day--today { border-color: #0d9488; background: #f0fdfa; }
.cal-day__num {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--colour-text-muted);
  margin-bottom: 0.2rem;
}
.cal-day--today .cal-day__num { color: #0d9488; font-weight: 800; }
.cal-event-dot {
  display: block;
  background: #0d9488;
  color: #fff;
  border-radius: 3px;
  padding: 1px 4px;
  font-size: 0.62rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  margin-bottom: 1px;
  max-width: 100%;
}
.cal-event-dot:hover { background: #0f766e; }
.cal-event-dot--ongoing { background: #059669; }

.cal-event-list {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  min-height: 3rem;
}
.cal-event-list p { font-size: 0.85rem; color: var(--colour-text-muted); }

/* ── Map ─────────────────────────────────────────────────── */
#conferences-map {
  width: 100%;
  height: 520px;
  background: #e0f2f1;
}
.map-attribution-note {
  max-width: 1100px;
  margin: 0.5rem auto 0;
  padding: 0 1.25rem;
  font-size: 0.75rem;
  color: var(--colour-text-muted);
}

/* ── Feed section — teal overrides (base styles in style.css) */
.feed-card { border-top-color: #0d9488; }
.feed-card__url { color: #0f766e; }

/* ── Dark mode ───────────────────────────────────────────── */
html[data-dark="true"] {
  --colour-bg:          #021a14;
  --colour-bg-alt:      #042f24;
  --colour-card:        #073d2e;
  --colour-border:      #0e4d3b;
  --colour-border-hover:#1a7a5e;
  --colour-primary:     #0d9488;
  --colour-primary-mid: #2dd4bf;

}
html[data-dark="true"] .event-card[data-status="ongoing"] {
  background: #042f24;
  border-left-color: #34d399;
}
html[data-dark="true"] .tag-chip--hacking     { background: #1a0505; color: #fca5a5; }
html[data-dark="true"] .tag-chip--industry    { background: #071829; color: #93c5fd; }
html[data-dark="true"] .tag-chip--ctf         { background: #1c1200; color: #fcd34d; }
html[data-dark="true"] .tag-chip--training    { background: #022c22; color: #6ee7b7; }
html[data-dark="true"] .tag-chip--research    { background: #1a1848; color: #a5b4fc; }
html[data-dark="true"] .tag-chip--beginner-friendly { background: #022c22; color: #5eead4; }
html[data-dark="true"] .tag-chip--regional    { background: #1e293b; color: #94a3b8; }
html[data-dark="true"] .tag-chip--free        { background: #022c22; color: #86efac; }
html[data-dark="true"] .tag-chip--virtual     { background: #180f33; color: #c4b5fd; }
html[data-dark="true"] .tag-chip--government  { background: #071829; color: #7dd3fc; }
html[data-dark="true"] .tag-chip--threat-intel{ background: #1a0514; color: #f9a8d4; }
html[data-dark="true"] .tag-chip--malware     { background: #1a0d1a; color: #d8b4fe; }
html[data-dark="true"] .tag-chip--appsec      { background: #1c1200; color: #fde68a; }
html[data-dark="true"] .tag-chip--privacy     { background: #1e293b; color: #cbd5e1; }
html[data-dark="true"] .tag-chip--offensive   { background: #1c0a00; color: #fb923c; }
html[data-dark="true"] .tag-chip--defensive   { background: #022c22; color: #86efac; }
html[data-dark="true"] .tag-chip--academic    { background: #12104a; color: #a5b4fc; }
html[data-dark="true"] .tag-chip--enterprise  { background: #071829; color: #93c5fd; }
html[data-dark="true"] .feed-card__url        { background: #042f24; color: #2dd4bf; }
html[data-dark="true"] .cal-nav-btn:hover     { background: #0e4d3b; }
html[data-dark="true"] .cal-day--today        { background: #042f24; border-color: #0d9488; }
html[data-dark="true"] .event-status-badge--ongoing { background: #022c22; color: #34d399; }
html[data-dark="true"] .event-status-badge--free    { background: #022c22; color: #86efac; }
html[data-dark="true"] .event-status-badge--virtual { background: #180f33; color: #c4b5fd; }
html[data-dark="true"] .btn-dark-mode { background: rgba(255 255 255 / 0.12); color: #e2e8f0; }
html[data-dark="true"] .btn-dark-mode:hover { background: rgba(255 255 255 / 0.2); }
html[data-dark="true"] .btn-dark-mode .icon-moon { display: none; }
html[data-dark="true"] .btn-dark-mode .icon-sun  { display: inline; }

/* ── Background gradient wash ───────────────────────────── */
body {
  background-image: radial-gradient(
    ellipse 200% 60% at 50% 0%,
    rgba(13, 148, 136, 0.24) 0%,
    transparent 65%
  );
}
html[data-dark="true"] body {
  background-image: radial-gradient(
    ellipse 200% 60% at 50% 0%,
    rgba(45, 212, 191, 0.30) 0%,
    transparent 65%
  );
}

/* ── Mobile responsive ───────────────────────────────────── */
@media (max-width: 640px) {
  .controls-bar__inner { flex-direction: column; align-items: stretch; }
  .search-wrap { min-width: 0; }
  .view-toggle-bar { justify-content: stretch; width: 100%; }
  .view-toggle-btn { flex: 1; }

  .event-card { flex-direction: column; gap: 0.6rem; }
  .event-date-badge { flex-direction: row; gap: 0.4rem; align-self: flex-start; padding: 0.3rem 0.6rem; border-radius: 0.25rem; min-width: auto; }
  .event-date-month { font-size: 0.75rem; }
  .event-date-day   { font-size: 1rem; }

  .calendar-grid { gap: 1px; }
  .cal-day { min-height: 2.8rem; padding: 0.15rem; }
  .cal-event-dot { font-size: 0; width: 6px; height: 6px; border-radius: 50%; padding: 0; margin: 1px auto; }

  #conferences-map { height: 340px; }

  .events-container { padding: 1rem 0.75rem; }
  .tag-filter-bar__inner { padding: 0.4rem 0.75rem; gap: 0.3rem; }
  .tag-chip { font-size: 0.7rem; padding: 0.15rem 0.45rem; }

  .month-heading { font-size: 0.85rem; }
}