/* AppKineo · explorador de la biblioteca de ejercicios (prefijo kl-). Mobile-first, oscuro, sin dependencias. */
.kl-noscroll, .kl-noscroll body { overflow: hidden; }
.kl-host {
  --kl-bg: #0b1118; --kl-panel: #121b25; --kl-panel2: #172433; --kl-line: #263444; --kl-text: #eaf1f8; --kl-dim: #9fb0c1;
  --kl-accent: #5ee3c1; --kl-accent-ink: #05231b; --kl-danger: #ff5d6c; --kl-warn: #ffc86b; --kl-ok: #5ee3a0;
  color: var(--kl-text); font: 16px/1.45 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
.kl-root { background: var(--kl-bg); color: var(--kl-text); min-height: 60vh; padding: 12px 16px 40px; border-radius: 0; position: relative; }
.kl-root *, .kl-root *::before, .kl-root *::after { box-sizing: border-box; }
.kl-root [hidden] { display: none !important; }
.kl-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.kl-dim { color: var(--kl-dim); }
.kl-hint { color: var(--kl-dim); font-size: .88rem; margin: 6px 0; }
.kl-err, .kl-form-err { color: #ffd3d7; }
.kl-form-err:not(:empty) { background: rgba(255, 93, 108, .12); border: 1px solid rgba(255, 93, 108, .5); border-radius: 12px; padding: 10px 12px; margin: 10px 0; }
.kl-warn { color: #ffe4ad; background: rgba(255, 200, 107, .1); border: 1px solid rgba(255, 200, 107, .4); padding: 8px 12px; border-radius: 12px; }
.kl-danger-txt { color: #ff9aa4 !important; }
.kl-root :focus-visible { outline: 3px solid #fff; outline-offset: 2px; box-shadow: 0 0 0 5px rgba(94, 227, 193, .65); }
.kl-root h2, .kl-root h3, .kl-root h4 { margin: 0; }

/* botones */
.kl-btn { min-height: 44px; padding: 0 16px; border-radius: 12px; border: 1px solid var(--kl-line); background: var(--kl-panel); color: var(--kl-text); font: inherit; font-weight: 600; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.kl-btn:hover { border-color: #3a4f66; }
.kl-btn:disabled { opacity: .5; cursor: default; }
.kl-btn-primary { background: var(--kl-accent); border-color: var(--kl-accent); color: var(--kl-accent-ink); }
.kl-btn-primary:hover { filter: brightness(1.06); border-color: var(--kl-accent); }
.kl-btn-secondary { background: var(--kl-panel2); }
.kl-btn-ghost { background: transparent; border-color: transparent; color: var(--kl-dim); }
.kl-btn-danger { background: transparent; border-color: rgba(255, 93, 108, .6); color: #ff9aa4; }
.kl-btn-big { min-height: 52px; font-size: 1.05rem; width: 100%; }
.kl-icon-btn { min-width: 44px; min-height: 44px; border-radius: 12px; border: 1px solid var(--kl-line); background: var(--kl-panel); color: var(--kl-text); font-size: 1.1rem; cursor: pointer; }
.kl-link { background: none; border: 0; padding: 4px 2px; color: var(--kl-accent); font: inherit; cursor: pointer; text-decoration: underline; min-height: 32px; }
.kl-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }

/* campos */
.kl-input { width: 100%; min-height: 44px; padding: 8px 12px; border-radius: 12px; border: 1px solid var(--kl-line); background: #0e1620; color: var(--kl-text); font: inherit; }
textarea.kl-input { min-height: 72px; resize: vertical; }
.kl-input-sm { width: auto; min-height: 40px; }
.kl-field { display: flex; flex-direction: column; gap: 4px; margin: 10px 0; }
.kl-field > label, .kl-sec > h4 { font-weight: 600; font-size: .92rem; }
.kl-cols { display: grid; grid-template-columns: 1fr; gap: 0 14px; }
.kl-opt { display: flex; align-items: center; gap: 10px; min-height: 40px; padding: 4px 6px; cursor: pointer; }
.kl-opt input { width: 20px; height: 20px; accent-color: var(--kl-accent); flex: none; }
.kl-opt-sep { border-top: 1px solid var(--kl-line); margin-top: 6px; padding-top: 8px; }
.kl-checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 2px 10px; }
.kl-fs { border: 1px solid var(--kl-line); border-radius: 14px; margin: 14px 0; padding: 6px 14px 12px; }
.kl-fs legend { padding: 0 8px; font-weight: 650; color: var(--kl-accent); }
.kl-sticky { position: sticky; bottom: 0; background: linear-gradient(180deg, transparent, var(--kl-bg) 30%); padding: 14px 0 6px; }

/* cabecera / busqueda / pestañas */
.kl-top { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.kl-search-wrap { position: relative; flex: 1 1 260px; }
.kl-search-ico { position: absolute; left: 14px; top: 50%; transform: translateY(-52%); color: var(--kl-dim); font-size: 1.25rem; pointer-events: none; }
.kl-search { width: 100%; min-height: 48px; padding: 8px 14px 8px 42px; border-radius: 24px; border: 1px solid var(--kl-line); background: var(--kl-panel); color: var(--kl-text); font: inherit; }
.kl-tabs { display: flex; gap: 4px; margin: 12px 0 4px; overflow-x: auto; scrollbar-width: none; border-bottom: 1px solid var(--kl-line); }
.kl-tabs::-webkit-scrollbar { display: none; }
.kl-tab { flex: none; min-height: 44px; padding: 0 14px; background: none; border: 0; border-bottom: 3px solid transparent; color: var(--kl-dim); font: inherit; font-weight: 600; cursor: pointer; }
.kl-tab[aria-selected="true"] { color: var(--kl-text); border-bottom-color: var(--kl-accent); }

/* filtros */
.kl-filters { display: flex; gap: 8px; margin: 12px 0 6px; overflow-x: auto; padding: 2px 2px 8px; scrollbar-width: none; }
.kl-filters::-webkit-scrollbar { display: none; }
.kl-fwrap { position: relative; flex: none; }
.kl-chip { min-height: 40px; padding: 0 14px; border-radius: 20px; border: 1px solid var(--kl-line); background: var(--kl-panel); color: var(--kl-text); font: inherit; font-size: .92rem; cursor: pointer; white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.kl-chip-on { background: rgba(94, 227, 193, .16); border-color: var(--kl-accent); color: #d6fff3; }
.kl-caret { font-size: .7rem; opacity: .7; }
.kl-pop { position: fixed; left: 12px; right: 12px; bottom: 12px; max-height: 70vh; overflow: auto; z-index: 50; background: var(--kl-panel); border: 1px solid #36506a; border-radius: 16px; padding: 12px 14px; box-shadow: 0 12px 40px rgba(0, 0, 0, .6); }
.kl-pop-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.kl-pop-close { width: 100%; margin-top: 10px; }
.kl-active { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin: 4px 0 6px; }
.kl-tag { min-height: 34px; padding: 0 10px; border-radius: 16px; border: 1px solid var(--kl-accent); background: rgba(94, 227, 193, .1); color: #d6fff3; font: inherit; font-size: .84rem; cursor: pointer; }
.kl-stats { display: flex; flex-wrap: wrap; gap: 4px 16px; color: var(--kl-dim); font-size: .85rem; margin: 4px 0 8px; }
.kl-stats strong { color: var(--kl-text); }
.kl-stat-alert { color: var(--kl-warn); }
.kl-result-count { color: var(--kl-dim); margin: 8px 0; font-size: .9rem; }

/* filas tipo Netflix y grilla */
.kl-main { outline: none; }
.kl-row { margin: 18px 0 8px; }
.kl-row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.kl-row-title { font-size: 1.1rem; font-weight: 700; }
.kl-count { font-weight: 400; font-size: .85rem; }
.kl-row-track { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 12px; scroll-snap-type: x proximity; scrollbar-width: thin; scrollbar-color: #36506a transparent; -webkit-overflow-scrolling: touch; }
.kl-row-track > .kl-card-wrap { flex: none; width: 148px; scroll-snap-align: start; }
.kl-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 12px; }
.kl-card-wrap { position: relative; min-width: 0; }
.kl-card { position: relative; display: flex; flex-direction: column; gap: 3px; width: 100%; text-align: left; background: none; border: 0; padding: 0; color: inherit; font: inherit; cursor: pointer; border-radius: 12px; }
.kl-card:hover .kl-thumb { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0, 0, 0, .5); }
.kl-card-title { font-weight: 650; font-size: .95rem; line-height: 1.25; margin-top: 4px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.kl-card-meta { font-size: .78rem; color: var(--kl-dim); }
.kl-select { position: absolute; right: 8px; bottom: 8px; width: 24px; height: 24px; accent-color: var(--kl-accent); z-index: 3; }
.kl-thumb { display: block; position: relative; aspect-ratio: 9 / 16; border-radius: 12px; overflow: hidden; background: #0e1620; border: 1px solid var(--kl-line); transition: transform .15s, box-shadow .15s; }
.kl-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.kl-thumb-sm { width: 54px; flex: none; border-radius: 8px; }
.kl-ph { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 8px; }
.kl-ph-letter { font-size: 2.6rem; font-weight: 800; color: rgba(255, 255, 255, .9); text-shadow: 0 2px 12px rgba(0, 0, 0, .4); }
.kl-ph-sub { font-size: .7rem; color: rgba(255, 255, 255, .8); }
.kl-thumb-sm .kl-ph-letter { font-size: 1.4rem; }
.kl-thumb-sm .kl-ph-sub { display: none; }
.kl-badges { position: absolute; top: 6px; left: 6px; right: 6px; display: flex; flex-wrap: wrap; gap: 4px; z-index: 2; pointer-events: none; }
.kl-badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: .7rem; font-weight: 700; background: rgba(8, 13, 18, .8); color: var(--kl-text); backdrop-filter: blur(4px); }
.kl-badge-video { color: var(--kl-accent); }
.kl-badge-warn { color: var(--kl-warn); }
.kl-badge-err { color: #ff9aa4; }
.kl-badge-mine { color: #a9b6ff; }
.kl-badge-rev { color: var(--kl-warn); }
.kl-rev-aprobada { color: var(--kl-ok); }
.kl-rev-descartada { color: #ff9aa4; }
.kl-inline { display: inline-block; }
.kl-sem { position: absolute; top: 6px; right: 6px; width: 14px; height: 14px; border-radius: 50%; border: 2px solid rgba(8, 13, 18, .85); z-index: 2; }
.kl-sem-verde { background: #3ddc84; } .kl-sem-amarillo { background: #ffc233; } .kl-sem-rojo { background: #ff4d5e; }
.kl-more { display: flex; justify-content: center; margin: 18px 0; }
.kl-empty { text-align: center; padding: 36px 12px; }
.kl-empty-t { font-size: 1.05rem; font-weight: 650; margin: 0 0 6px; }
.kl-skel { aspect-ratio: 9 / 14; border-radius: 12px; background: linear-gradient(100deg, #111a24 30%, #1a2735 50%, #111a24 70%); background-size: 200% 100%; animation: kl-sh 1.3s linear infinite; }
@keyframes kl-sh { to { background-position: -200% 0; } }

/* mis ejercicios / propuestas / revision */
.kl-mine-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.kl-mine-head .kl-hint { flex: 1 1 100%; margin: 0; }
.kl-proposals { display: grid; gap: 14px; }
.kl-prop { display: grid; grid-template-columns: 120px 1fr; gap: 14px; padding: 12px; border: 1px solid var(--kl-line); border-radius: 14px; background: var(--kl-panel); }
.kl-prop-info { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.kl-prop-info p { margin: 0; }
.kl-bulk { background: var(--kl-panel); border: 1px solid var(--kl-line); border-radius: 14px; padding: 10px 12px; margin-bottom: 14px; position: sticky; top: 0; z-index: 5; }
.kl-bulk-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.kl-bulk-row .kl-input { flex: 1 1 200px; width: auto; }
.kl-bulk-n { color: var(--kl-dim); font-size: .88rem; }

/* detalle (hoja inferior en mobile, panel centrado en desktop) */
.kl-detail-overlay { position: fixed; inset: 0; z-index: 9000; background: rgba(3, 7, 11, .78); display: flex; align-items: flex-end; justify-content: center; }
.kl-detail { width: 100%; max-width: 980px; height: 100%; max-height: 100dvh; background: var(--kl-bg); display: flex; flex-direction: column; color: var(--kl-text); }
.kl-d-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top)); border-bottom: 1px solid var(--kl-line); }
.kl-d-title { font-size: 1.1rem; font-weight: 700; }
.kl-d-body, .kl-ed-body { flex: 1; min-height: 0; overflow: auto; padding: 14px 16px; padding-bottom: max(24px, env(safe-area-inset-bottom)); -webkit-overflow-scrolling: touch; }
.kl-d-body { display: grid; grid-template-columns: 1fr; gap: 16px; align-content: start; }
.kl-d-media { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.kl-d-video { width: min(100%, 360px); aspect-ratio: 9 / 16; max-height: 52vh; border-radius: 14px; background: #000; object-fit: contain; }
.kl-d-ph { width: min(100%, 190px); }
.kl-d-ph .kl-ph { position: relative; aspect-ratio: 9 / 16; border-radius: 14px; }
.kl-d-info { min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.kl-d-info p { margin: 0; }
.kl-d-meta { color: var(--kl-dim); font-size: .92rem; }
.kl-d-desc { font-size: 1.02rem; }
.kl-chips { display: grid; grid-template-columns: 1fr; gap: 8px; }
.kl-chips:empty { display: none; }
.kl-info { display: flex; gap: 10px; align-items: flex-start; background: var(--kl-panel); border: 1px solid var(--kl-line); border-radius: 12px; padding: 10px 12px; }
.kl-info-ico { font-size: 1.3rem; }
.kl-info-l { font-size: .78rem; color: var(--kl-dim); text-transform: uppercase; letter-spacing: .04em; }
.kl-sec h3, .kl-sec h4 { margin: 0 0 4px; }
.kl-sec ul { margin: 4px 0 0; padding-left: 1.2em; }
.kl-bul-ok h3::before { content: '✓ '; color: var(--kl-ok); }
.kl-bul-warn h3::before { content: '⚠ '; color: var(--kl-warn); }
.kl-semaforo { display: flex; gap: 12px; align-items: center; border-radius: 12px; padding: 10px 12px; border: 1px solid var(--kl-line); background: var(--kl-panel); }
.kl-semaforo .kl-sem { position: static; flex: none; width: 22px; height: 22px; }
.kl-semaforo-amarillo { border-color: rgba(255, 194, 51, .5); } .kl-semaforo-rojo { border-color: rgba(255, 77, 94, .5); }

/* dosis */
.kl-dose { border: 1px solid var(--kl-line); border-radius: 14px; padding: 8px 14px 12px; margin: 0; }
.kl-dose legend { padding: 0 8px; font-weight: 650; }
.kl-dose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; align-items: end; }
.kl-step { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.kl-step-l { flex: 1 1 100%; font-size: .85rem; color: var(--kl-dim); }
.kl-step-b { width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--kl-line); background: var(--kl-panel2); color: var(--kl-text); font-size: 1.3rem; cursor: pointer; }
.kl-step-v { min-width: 36px; text-align: center; font-weight: 700; font-size: 1.1rem; }
.kl-dose-sum { margin-top: 10px; color: var(--kl-accent); font-weight: 600; }

/* progresion */
.kl-nav { display: grid; grid-template-columns: 1fr; gap: 8px; }
.kl-navcard { display: flex; gap: 12px; align-items: center; text-align: left; padding: 8px; border-radius: 12px; border: 1px solid var(--kl-line); background: var(--kl-panel); color: inherit; font: inherit; cursor: pointer; }
.kl-navcard > span:last-child { display: flex; flex-direction: column; min-width: 0; }
.kl-navl { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; }
.kl-navt { font-weight: 650; }
.kl-chain { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center; font-size: .88rem; }
.kl-chain li + li::before { content: '→'; color: var(--kl-dim); margin-right: 6px; }
.kl-chain-on { font-weight: 700; color: var(--kl-accent); }
.kl-eq { font-size: .85rem; }

/* panel profesional */
.kl-pro { border: 1px dashed #3a4f66; border-radius: 14px; padding: 12px 14px; background: rgba(23, 36, 51, .5); display: flex; flex-direction: column; gap: 10px; }
.kl-pro h3 { font-size: .95rem; color: var(--kl-warn); }
.kl-pro p { margin: 0; }
.kl-review { display: flex; flex-direction: column; gap: 8px; }
.kl-hist summary { cursor: pointer; color: var(--kl-dim); min-height: 32px; }
.kl-hist ul { font-size: .85rem; color: var(--kl-dim); }

/* sugeridor */
.kl-sug { border: 1px solid var(--kl-line); border-radius: 14px; background: var(--kl-panel); padding: 10px 14px; margin: 10px 0; }
.kl-sug p { margin: 2px 0; }
.kl-sug summary { cursor: pointer; color: var(--kl-accent); min-height: 32px; }
.kl-sug-res { margin-top: 14px; }
.kl-root input[type="range"] { width: 100%; accent-color: var(--kl-accent); min-height: 32px; }

/* avisos */
.kl-toasts { position: fixed; left: 12px; right: 12px; bottom: max(14px, env(safe-area-inset-bottom)); z-index: 9500; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.kl-toast { pointer-events: auto; max-width: 520px; width: 100%; padding: 12px 16px; border-radius: 12px; background: #1c2c3d; border: 1px solid #36506a; color: var(--kl-text); box-shadow: 0 8px 28px rgba(0, 0, 0, .55); animation: kl-in .2s ease-out; }
.kl-toast-err { background: #3a1820; border-color: rgba(255, 93, 108, .6); color: #ffd3d7; }
@keyframes kl-in { from { opacity: 0; transform: translateY(8px); } }

@media (min-width: 640px) {
  .kl-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kl-filters { flex-wrap: wrap; overflow: visible; }
  .kl-cols { grid-template-columns: repeat(2, 1fr); }
  .kl-nav { grid-template-columns: 1fr 1fr; }
  .kl-row-track > .kl-card-wrap { width: 168px; }
  .kl-pop { position: absolute; left: 0; right: auto; bottom: auto; top: calc(100% + 6px); width: 300px; max-height: 360px; }
}
@media (min-width: 960px) {
  .kl-root { padding: 18px 28px 48px; }
  .kl-grid { grid-template-columns: repeat(auto-fill, minmax(176px, 1fr)); }
  .kl-cols { grid-template-columns: repeat(3, 1fr); }
  .kl-detail-overlay { align-items: center; }
  .kl-detail { height: min(92vh, 900px); border-radius: 18px; border: 1px solid var(--kl-line); overflow: hidden; }
  .kl-d-body { grid-template-columns: 340px 1fr; gap: 24px; }
  .kl-d-media { position: sticky; top: 0; align-self: start; }
  .kl-d-video { max-height: 70vh; }
}
@media (prefers-reduced-motion: reduce) {
  .kl-skel, .kl-toast { animation: none; }
  .kl-thumb { transition: none; }
}
@media (forced-colors: active) {
  .kl-chip-on, .kl-tab[aria-selected="true"] { border: 2px solid Highlight; }
}