/* Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }

/* Light/Dark themes */
:root,
html[data-theme="light"] {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #3498db;
  --shadow: 0 6px 18px rgba(0,0,0,0.08);
}
html[data-theme="dark"] {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #4dabf7;
  --shadow: 0 6px 18px rgba(0,0,0,0.4);
}

/* Base */
body { font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
       background: var(--bg); color: var(--text); line-height: 1.5; }

/* Topbar */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
          padding: 0.8rem 1rem; background: var(--card); box-shadow: var(--shadow);
          position: sticky; top: 0; z-index: 9; }
.brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; }
.brand i { color: var(--accent); }
.controls { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }

/* Tabs */
.tabs { display: inline-flex; background: var(--bg); border-radius: 12px; padding: 4px; }
.tab { border: 0; background: transparent; color: var(--muted);
       padding: 0.5rem 0.8rem; border-radius: 10px; cursor: pointer; font-weight: 600; }
.tab.active { color: var(--text); background: var(--bg); box-shadow: inset 0 0 0 2px var(--accent); }
.tab i { margin-right: 0.4rem; color: var(--accent); }

/* Containers / Views */
.container { width: min(1100px, 92%); margin: 18px auto 30px; }
.view { display: none; }
.view.active { display: block; }

h1 { margin: 6px 0 14px; }
.subtitle { color: var(--muted); margin-bottom: 16px; }

/* Timeline (Celebrations) */
#calendar { position: relative; margin: 20px 0; padding: 10px 0; }
#calendar::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
                    width: 4px; background: var(--accent); transform: translateX(-50%); }
.event { position: relative; width: 50%; padding: 10px 40px; }
.event.left { left: 0; text-align: right; }
.event.right { left: 50%; text-align: left; }
.event .content {
  background: var(--card); padding: 15px; border-radius: 10px; position: relative; box-shadow: var(--shadow);
  outline: 2px solid color-mix(in oklab, var(--tint, var(--accent)) 22%, transparent);
}
.event.left .content::after { content: ""; position: absolute; top: 15px; right: -8px;
  border-width: 8px 0 8px 8px; border-style: solid; border-color: transparent transparent transparent var(--card); }
.event.right .content::after { content: ""; position: absolute; top: 15px; left: -8px;
  border-width: 8px 8px 8px 0; border-style: solid; border-color: transparent var(--card) transparent transparent; }
.event .icon { font-size: 22px; margin-bottom: 8px; color: var(--tint, var(--accent)); }
.event .title { font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.event .name { font-size: 16px; margin-bottom: 4px; }
.event .date { font-size: 13px; color: var(--muted); }
.event .type-row { margin-top: 8px; }

/* Type pill (used by celebrations & achievements) */
.type-row { display: flex; flex-wrap: wrap; gap: 6px; }
.type-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px;
  background: color-mix(in oklab, var(--tint, var(--accent)) 18%, var(--card));
  border: 1px solid color-mix(in oklab, var(--tint, var(--accent)) 55%, transparent);
  color: var(--text);
  padding: 2px 8px; border-radius: 999px;
}
.type-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--tint, var(--accent)); }

@media (max-width: 768px) {
  #calendar::before { left: 20px; }
  .event { width: 100%; padding-left: 60px; padding-right: 20px; text-align: left; margin-bottom: 16px; }
  .event.left, .event.right { left: 0; }
  .event.left .content::after, .event.right .content::after {
    left: -8px; border-width: 8px 8px 8px 0; border-color: transparent var(--card) transparent transparent;
  }
}

/* Achievements */
.chart-card { background: var(--card); padding: 16px; border-radius: 12px; box-shadow: var(--shadow); margin-bottom: 18px; }

/* Chart area + loader */
.chart-wrap {
  position: relative;
  height: 280px;
  overflow: hidden;
}
.chart-wrap > canvas {
  position: absolute; inset: 0;
  width: 100% !important; height: 100% !important; display: block;
}
.chart-loader[hidden] { display: none; }
.chart-loader {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: color-mix(in oklab, var(--bg) 40%, transparent);
  backdrop-filter: blur(1px);
  z-index: 5;
}
.spinner { width: 22px; height: 22px; border-radius: 50%;
  border: 3px solid rgba(0,0,0,0.15); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.achievements-header { margin: 6px 0 10px; }
.chart-note { margin-top: 8px; font-size: 13px; color: var(--muted); }

.achievements-list { display: grid; grid-template-columns: 1fr; gap: 16px; }
.ach-card {
  background: var(--card); border-radius: 12px; box-shadow: var(--shadow); padding: 16px;
  border-left: 4px solid color-mix(in oklab, var(--tint, transparent) 70%, transparent);
}
.ach-header { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.ach-header h3 { font-size: 20px; font-weight: 800; }
.ach-meta { color: var(--muted); font-size: 14px; display: flex; align-items: center; gap: 6px; }
.ach-desc { margin-top: 8px; }
.ach-card .type-row { margin-top: 8px; }

/* Weight stars (yellow) */
.stars { display: inline-flex; gap: 4px; align-items: center; margin-top: 6px; }
.stars i { font-size: 16px; color: var(--muted); }
.stars i.fill { color: #f1c40f; }

/* Gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
           gap: 10px; margin-top: 12px; }
.thumb { border: 0; background: transparent; padding: 0; cursor: pointer; border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.85); display: grid; place-items: center; z-index: 50; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 90vw; max-height: 80vh; border-radius: 12px; box-shadow: var(--shadow); }
.lightbox-close, .lightbox-nav { position: absolute; background: rgba(255,255,255,0.12); color: #fff; border: 0; cursor: pointer;
                                 border-radius: 10px; padding: 10px; backdrop-filter: blur(3px); }
.lightbox-close { top: 18px; right: 18px; }
.lightbox-nav.prev { left: 18px; }
.lightbox-nav.next { right: 18px; }
.lightbox-nav i, .lightbox-close i { font-size: 20px; }

/* fallback icon alias */
i.fa-chart-scatter::before { content: "\f7ee"; }

/* Type filter (multi-select chips) */
.type-filter {
  display: flex; align-items: center; gap: 10px; margin: 8px 0 14px; flex-wrap: wrap;
}
.type-filter i { color: var(--accent); }
/* Multi-select chips (color-aware) */
.chip-wrap { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  --chip-color: var(--accent);
  border: 1px solid color-mix(in oklab, var(--chip-color) 40%, var(--card));
  background: color-mix(in oklab, var(--chip-color) 10%, var(--card));
  color: var(--text);
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--shadow);
  font-size: 14px;
  user-select: none;
}
.chip[aria-pressed="true"] {
  outline: 2px solid var(--chip-color);
  background: color-mix(in oklab, var(--chip-color) 18%, var(--card));
}

/* Screen-reader only helper */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Global, clickable chart tooltip (fixed) */
/* Fallback so .chart-tooltip without #id still has a bg */
.chart-tooltip { background: var(--card); color: var(--text); }

#chart-tooltip.chart-tooltip {
  position: fixed;
  transform: none;
  pointer-events: none;
  background: var(--card);
  color: var(--text);
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 10px 12px 12px;
  max-width: 360px;
  z-index: 9999;
}
.chart-tooltip .ct-head { font-weight: 800; margin: 0 18px 8px 0; }
.chart-tooltip .ct-body { display: grid; grid-template-columns: 140px 1fr; gap: 10px; align-items: start; }
.chart-tooltip img.ct-img { width: 140px; height: 90px; object-fit: cover; border-radius: 8px; display: block; }
.chart-tooltip .ct-text { font-size: 13px; color: var(--text); }
.chart-tooltip .ct-close {
  position: absolute; top: 6px; right: 6px;
  background: transparent; border: 0; color: var(--muted);
  font-size: 18px; line-height: 1; cursor: pointer;
}

/* Flash highlight for scrolled-to card */
.ach-card.flash { outline: 2px solid var(--accent); transition: outline-color 1.2s ease; }