/* Exercise pages, hubs and the A–Z directory (API v2). Tokens come from ../index.css. */

.wx-main { padding: 112px 0 96px; }
.wx-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-3); margin-bottom: 28px; }
.wx-crumbs a { color: var(--ink-2); text-decoration: none; }
.wx-crumbs a:hover { color: var(--ink); }
.wx-crumbs [aria-current] { color: var(--ink); }

/* ── Exercise hero ── */
.wx-hero { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 56px; align-items: start; margin-bottom: 64px; }
.wx-frame { position: relative; aspect-ratio: 5 / 6; background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid var(--rule); }
.wx-frame video, .wx-frame img { width: 100%; height: 100%; object-fit: contain; display: block; user-select: none; -webkit-user-drag: none; }
.wx-shield { position: absolute; inset: 0; z-index: 1; }
.wx-media-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-top: 14px; }
.wx-seg { display: inline-flex; gap: 4px; padding: 3px; border: 1px solid var(--ink-4); border-radius: 10px; background: var(--bg); }
.wx-seg button { font: 500 13px/1 Inter, sans-serif; color: var(--ink-2); background: transparent; border: 0; border-radius: 7px; padding: 8px 12px; cursor: pointer; }
.wx-seg button:hover { color: var(--ink); }
.wx-seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.wx-seg button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.wx-media-tag { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--ink-3); }
.wx-media-note { font-size: 13px; color: var(--ink-3); margin-top: 12px; line-height: 1.55; }
.wx-media-note a { color: var(--ink-2); }

.wx-kicker { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.wx-title { font-size: clamp(32px, 5vw, 48px); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); margin: 0 0 18px; }
.wx-answer { font-size: 17px; line-height: 1.65; color: var(--ink-2); margin: 0 0 28px; max-width: 680px; }
.wx-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.wx-badge { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink); border: 1px solid var(--rule-2); border-radius: 100px; padding: 5px 11px; }
.wx-specs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; margin: 0 0 28px; }
.wx-specs > div { background: var(--bg-1); padding: 14px 16px; }
.wx-specs dt { font-family: 'JetBrains Mono', monospace; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.wx-specs dd { margin: 0; font-size: 15px; color: var(--ink); }
.wx-muscles { display: grid; gap: 14px; }
.wx-muscles h2 { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); font-weight: 500; margin: 0 0 8px; }
.wx-chips { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.wx-chips li { font-size: 13.5px; color: var(--ink); background: var(--bg-1); border: 1px solid var(--ink-4); border-radius: 8px; padding: 6px 10px; }
.wx-chips li span { color: var(--ink-3); }
.wx-ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

/* ── Content blocks ── */
.wx-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; margin-bottom: 24px; }
.wx-block { background: var(--bg-1); border: 1px solid var(--rule); border-radius: 18px; padding: 28px; }
.wx-block h2 { font-size: 20px; font-weight: 650; color: var(--ink); margin: 0 0 18px; letter-spacing: -0.01em; }
.wx-steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 14px; }
.wx-steps li { counter-increment: step; display: grid; grid-template-columns: 30px 1fr; gap: 12px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.wx-steps li::before { content: counter(step); width: 28px; height: 28px; border-radius: 8px; background: var(--bg-2); border: 1px solid var(--ink-4); color: var(--ink); font: 600 13px/28px 'JetBrains Mono', monospace; text-align: center; }
.wx-tips { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.wx-tips li { position: relative; padding-left: 22px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.wx-tips li::before { content: ''; position: absolute; left: 4px; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--ink); }

.wx-section { margin-top: 56px; }
.wx-section > h2 { font-size: 24px; font-weight: 650; letter-spacing: -0.01em; color: var(--ink); margin: 0 0 20px; }
.wx-faq { display: grid; gap: 10px; }
.wx-faq details { background: var(--bg-1); border: 1px solid var(--rule); border-radius: 14px; padding: 0 20px; }
.wx-faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-size: 15.5px; font-weight: 550; color: var(--ink); display: flex; justify-content: space-between; gap: 16px; }
.wx-faq summary::-webkit-details-marker { display: none; }
.wx-faq summary::after { content: '+'; color: var(--ink-3); font-weight: 400; }
.wx-faq details[open] summary::after { content: '–'; }
.wx-faq details p { margin: 0 0 18px; font-size: 15px; line-height: 1.65; color: var(--ink-2); }

/* ── Cards (related exercises, hubs) ── */
.wx-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; }
.wx-card { display: block; text-decoration: none; background: var(--bg-1); border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; transition: border-color 0.2s, transform 0.2s; }
.wx-card:hover { border-color: var(--rule-2); transform: translateY(-2px); }
.wx-card .wx-thumb { position: relative; aspect-ratio: 5 / 6; background: #fff; }
.wx-card .wx-thumb img, .wx-card .wx-thumb video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.wx-card .wx-thumb video { opacity: 0; transition: opacity 0.2s; pointer-events: none; }
.wx-card .wx-thumb video.is-playing { opacity: 1; }
.wx-card .wx-meta { padding: 12px 14px 14px; }
.wx-card .wx-name { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.35; margin: 0 0 6px; }
.wx-card .wx-sub { font-family: 'JetBrains Mono', monospace; font-size: 10.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); }

/* ── Developer card ── */
.wx-dev { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 32px; align-items: center; background: var(--bg-1); border: 1px solid var(--rule); border-radius: 20px; padding: 36px; margin-top: 56px; }
.wx-dev h2 { font-size: 26px; font-weight: 650; color: var(--ink); margin: 0 0 12px; letter-spacing: -0.01em; }
.wx-dev p { font-size: 15px; line-height: 1.6; color: var(--ink-2); margin: 0 0 20px; }
.wx-code { background: var(--bg); border: 1px solid var(--ink-4); border-radius: 12px; padding: 18px 20px; font: 12.5px/1.65 'JetBrains Mono', monospace; color: var(--ink-2); overflow-x: auto; white-space: pre; margin: 0; }
.wx-code .c { color: var(--ink-3); }
.wx-code .k { color: var(--ink); }

/* ── Hubs and A–Z ── */
.wx-hub-head { max-width: 860px; margin-bottom: 36px; }
.wx-hub-head h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.05; font-weight: 700; letter-spacing: -0.02em; color: var(--ink); margin: 0 0 16px; }
.wx-hub-head p { font-size: 16.5px; line-height: 1.7; color: var(--ink-2); margin: 0; }
.wx-hub-head .count { color: var(--ink); font-weight: 600; }
.wx-hub-nav { display: grid; gap: 10px; margin: 0 0 36px; }
.wx-hub-nav div { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.wx-hub-nav span { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-right: 6px; }
.wx-hub-nav a { font-size: 13px; color: var(--ink-2); text-decoration: none; border: 1px solid var(--ink-4); border-radius: 100px; padding: 5px 12px; }
.wx-hub-nav a:hover, .wx-hub-nav a[aria-current] { color: var(--bg); background: var(--ink); border-color: var(--ink); }
.wx-az-letters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 32px; }
.wx-az-letters a { font: 600 13px/1 'JetBrains Mono', monospace; color: var(--ink-2); text-decoration: none; border: 1px solid var(--ink-4); border-radius: 8px; padding: 8px 10px; }
.wx-az-letters a:hover { color: var(--bg); background: var(--ink); }
.wx-az h2 { font: 700 22px/1 'JetBrains Mono', monospace; color: var(--ink); margin: 36px 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--rule); }
.wx-az ul { list-style: none; margin: 0; padding: 0; columns: 3 240px; column-gap: 32px; }
.wx-az li { break-inside: avoid; padding: 4px 0; font-size: 14.5px; }
.wx-az a { color: var(--ink-2); text-decoration: none; }
.wx-az a:hover { color: var(--ink); text-decoration: underline; }

@media (max-width: 900px) {
  .wx-hero { grid-template-columns: 1fr; gap: 32px; }
  .wx-hero .wx-media { max-width: 380px; width: 100%; margin: 0 auto; }
  .wx-grid, .wx-dev { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .wx-main { padding-top: 96px; }
  .container.wx-container { padding: 0 16px; }
  .wx-block, .wx-dev { padding: 22px; }
  .wx-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .wx-specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}