/* explore.css: topics, the library and the aspect playground. */

.explore-intro { padding-top: 32px; display: flex; flex-direction: column; gap: 12px; }

/* --- Topic list: simple rows, each with a small coloured dot --- */
.topics { padding-block: 28px 56px; }
.topic-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--champagne); }
.topic-list li { border-bottom: 1px solid var(--line); }
.topic-link {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 32px;
  padding: 16px 0; text-decoration: none;
}
.topic-num { width: 40px; font: 650 14px var(--serif); letter-spacing: 0.2em; color: var(--champagne); }
.topic-dot { width: 11px; height: 11px; border-radius: 50%; align-self: center; flex-shrink: 0; }
.topic-name { flex: 1 1 340px; font: 500 clamp(1.3rem, 2vw, 1.75rem)/1.15 var(--serif); }
.topic-ask { flex: 1 1 260px; color: var(--bone-soft); font-style: italic; }
.topic-go { font-size: 14px; font-weight: 650; color: var(--champagne); text-decoration: underline; text-underline-offset: 5px; }
.topic-go span { display: inline-block; transition: transform 0.2s; }
.topic-link:hover .topic-name { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.topic-link:hover .topic-go span { transform: translateX(4px); }
.no-chart-note { margin: 20px 0 0; }

/* --- Library --- */
.library { background: rgba(0, 0, 0, 0.12); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 56px; }
.library .lede { margin: 10px 0 24px; }
.library-sections { border-top: 1px solid var(--champagne); }
.library-sections details { border-bottom: 1px solid var(--line); }
.library-sections summary {
  display: flex; align-items: baseline; gap: 20px; cursor: pointer; list-style: none;
  padding: 16px 0;
}
.library-sections summary::-webkit-details-marker { display: none; }
.library-sections summary::after { content: '+'; margin-left: auto; font-size: 26px; color: var(--champagne); line-height: 1; }
.library-sections details[open] summary::after { content: '−'; }
.lib-name { font: 500 clamp(1.25rem, 1.9vw, 1.6rem)/1.15 var(--serif); }
.lib-sub { color: var(--bone-soft); }
.lib-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 0 40px; padding: 4px 0 32px; }
.lib-item { padding: 16px 0; border-top: 1px solid var(--line); }
.lib-item h3 { font: 500 19px/1.2 var(--serif); margin: 0 0 4px; display: flex; gap: 10px; align-items: baseline; }
.lib-item h3 .symbol { color: var(--champagne); font-family: 'Segoe UI Symbol', 'Apple Symbols', 'Noto Sans Symbols', var(--serif); }
.lib-item p { margin: 0; color: var(--bone-soft); font-size: 15px; }
.lib-item .yours { display: inline-block; margin-top: 8px; color: var(--champagne); font-size: 14px; font-weight: 650; }

/* --- Aspect playground --- */
.playground { display: flex; flex-wrap: wrap; align-items: center; gap: 32px 64px; padding-block: 56px 16px; }
.playground-text { flex: 1 1 380px; display: flex; flex-direction: column; gap: 18px; }
.playground-wheel { flex: 0 1 auto; width: min(420px, calc(100vh - 160px), 100%); margin-inline: auto; touch-action: none; }
.playground-steps { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 6px; max-width: 62ch; }
.playground-steps li::marker { color: var(--champagne); font-weight: 700; }
.playground-link { margin: 0; font-size: 15px; max-width: 62ch; }
.playground-readout { min-height: 150px; border-top: 1px solid var(--champagne); padding-top: 18px; }
.playground-readout .angle { font: 500 34px/1 var(--serif); margin: 0 0 8px; }
.playground-readout .aspect-name { font: 650 16px var(--sans); color: var(--champagne); margin: 0 0 4px; }
.playground-readout p { margin: 0 0 6px; }

.pg svg { width: 100%; height: auto; overflow: visible; }
.pg .ring { fill: none; stroke: var(--bone); stroke-opacity: 0.5; }
.pg .tick { stroke: var(--champagne); stroke-opacity: 0.7; }
.pg .tick-label { fill: var(--bone-soft); font: 600 11px var(--sans); }
.pg .fixed { fill: var(--champagne); }
.pg .moving { fill: var(--page); stroke: var(--champagne); stroke-width: 2.5; cursor: grab; }
.pg .moving:focus-visible { outline: none; stroke: var(--bone); stroke-width: 4; }
.pg .moving-hit { fill: transparent; cursor: grab; }
.pg .link { stroke: var(--champagne); stroke-width: 1.6; }
.pg .link.soft { stroke-dasharray: 6 4; }
.pg .link.off { stroke: var(--bone); stroke-opacity: 0.15; stroke-dasharray: 2 4; }
.pg .glyph { fill: var(--ink); font: 18px 'Segoe UI Symbol', 'Apple Symbols', 'Noto Sans Symbols', var(--serif); pointer-events: none; }
.pg .glyph.moving-glyph { fill: var(--champagne); }

/* --- One topic --- */
.topic-head { padding-top: 28px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.topic-head .back { margin-bottom: 10px; }
.topic-head .topic-big-question { font: italic 600 clamp(1.15rem, 1.7vw, 1.4rem)/1.3 var(--serif); color: var(--champagne); margin: 0; }
.topic-head .lede { margin-top: 6px; }
.time-note { margin: 0; max-width: 60ch; }

.topic-item { display: flex; flex-wrap: wrap; gap: 16px 64px; padding-block: 32px; border-bottom: 1px solid var(--line); }
.topic-item:first-child { margin-top: 32px; border-top: 1px solid var(--champagne); }
.topic-item-head { flex: 1 1 260px; display: flex; flex-direction: column; gap: 8px; }
.topic-item-head .symbol { font-size: 28px; color: var(--champagne); line-height: 1; font-family: 'Segoe UI Symbol', 'Apple Symbols', 'Noto Sans Symbols', var(--serif); }
.topic-item-title { font: 500 clamp(1.5rem, 2.2vw, 1.9rem)/1.1 var(--serif); }
.topic-item-meta { margin: 0; color: var(--bone-soft); font-size: 15px; }
.topic-item-body { flex: 2 1 480px; min-width: 0; }
.topic-item-body p { margin: 0 0 14px; max-width: 64ch; }
.topic-item-body .lens { font: 500 clamp(1.1rem, 1.5vw, 1.3rem)/1.45 var(--serif); }
.topic-item-body ul { list-style: none; margin: 0 0 14px; padding: 0; }
.topic-item-body li { padding: 10px 0; border-top: 1px solid var(--line); }
.topic-item-body li strong { font-weight: 650; }
.topic-nav { padding-block: 40px 0; display: flex; flex-wrap: wrap; gap: 12px 32px; }
.topic-nav a { font-weight: 650; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.topic-nav a:hover { text-decoration: underline; }