/* learn.css — رحلة النحو (الخريطة والدروس) + قسم الشروحات + قائمة الشروحات الفرعية */

/* ---------- drawer: الشروحات submenu ---------- */
.drawer .nav-parent{display:flex;align-items:center;gap:14px;width:100%;border:0;background:transparent;border-radius:14px;padding:11px 14px;cursor:pointer;
  font:inherit;font-size:16px;font-weight:500;color:var(--text-2);text-align:start;transition:background .2s,color .2s}
.drawer .nav-parent:hover{background:var(--surface);color:var(--text)}
.drawer .nav-parent.on{color:var(--gold)}
.drawer .nav-parent .chev{margin-inline-start:auto;width:16px;height:16px;transition:transform .3s var(--ease)}
.drawer .nav-parent[aria-expanded="true"] .chev{transform:rotate(-90deg)}
.nav-sub{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease)}
.nav-sub.open{grid-template-rows:1fr}
.nav-sub>div{overflow:hidden;display:flex;flex-direction:column;gap:2px;padding-inline-start:30px}
.nav-sub button{border:0;background:transparent;text-align:start;padding:8px 14px;border-radius:12px;font:inherit;font-size:15px;color:var(--text-3);cursor:pointer;
  border-inline-start:2px solid var(--line);border-start-start-radius:0;border-end-start-radius:0}
.nav-sub button:hover{color:var(--text);background:var(--surface)}
.nav-sub button.on{color:var(--gold);border-inline-start-color:var(--gold)}

/* ---------- home banner ---------- */
.jy-banner{margin-top:16px;display:flex;align-items:center;gap:22px;padding:20px 24px;border-radius:24px;cursor:pointer;text-align:start;font:inherit;color:var(--text);
  border:1px solid var(--line);background:linear-gradient(120deg,color-mix(in srgb,#7cc576 22%,var(--surface)),var(--surface) 55%,color-mix(in srgb,#f2c14e 20%,var(--surface)));
  transition:transform .3s var(--ease),border-color .3s;width:100%}
.jy-banner:hover{transform:translateY(-3px);border-color:var(--line-2)}
.jy-banner svg{width:120px;height:64px;flex:none}
.jy-banner h3{margin:0;font-family:var(--f-display);font-size:22px}
.jy-banner p{margin:2px 0 0;color:var(--text-2);font-size:14.5px}
.jy-banner .btn{margin-inline-start:auto;flex:none}
@media (max-width:640px){.jy-banner{flex-wrap:wrap}.jy-banner svg{width:96px;height:52px}.jy-banner .btn{margin-inline-start:0}}

/* ---------- journey: top bar ---------- */
.jy-top{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.jy-meter{flex:1;min-width:180px;height:12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);overflow:hidden}
.jy-meter i{display:block;height:100%;width:0;background:linear-gradient(90deg,#7cc576,#f2c14e);border-radius:999px;transition:width .8s var(--ease)}
.jy-count{font-size:14px;color:var(--text-2);font-variant-numeric:tabular-nums}

/* ---------- journey: map ---------- */
.jy-map-wrap{max-width:600px;margin:0 auto;border-radius:28px;overflow:hidden;border:3px solid #3b2a1a;box-shadow:0 22px 50px -26px rgba(0,0,0,.6);background:#bfe3f5}
.jy-map{display:block;width:100%;height:auto;user-select:none;-webkit-user-select:none}
:root:not([data-theme="light"]) .jy-map{filter:brightness(.86) saturate(.92)}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]) .jy-map{filter:none}}
.jy-node{cursor:pointer;outline:none}
.jy-node .bob{transition:transform .25s var(--ease);transform-box:fill-box;transform-origin:center}
.jy-node:hover .bob,.jy-node:focus-visible .bob{transform:scale(1.1)}
.jy-node:focus-visible .ring{stroke:#1d6fd8;stroke-width:5}
.jy-node.locked{cursor:not-allowed}
.jy-node.shake .bob{animation:jyShake .4s}
.jy-node .pulse{transform-box:fill-box;transform-origin:center;animation:jyPulse 1.8s ease-out infinite}
.jy-mascot{animation:jyBob 1.6s ease-in-out infinite;transform-box:fill-box}
@keyframes jyPulse{from{transform:scale(1);opacity:.75}to{transform:scale(1.7);opacity:0}}
@keyframes jyBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes jyShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.jy-toast{position:fixed;inset-inline:0;bottom:calc(24px + env(safe-area-inset-bottom,0px));margin:auto;width:max-content;max-width:90vw;z-index:70;padding:10px 18px;border-radius:999px;
  background:var(--text);color:var(--bg);font-size:14.5px;box-shadow:0 12px 30px -12px rgba(0,0,0,.5);animation:fadeUp .3s var(--ease) both}

/* ---------- journey: lesson ---------- */
.jy-lesson{max-width:760px;margin:0 auto}
.jy-lhead{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.jy-badge{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;flex:none;font-family:var(--f-display);font-size:22px;font-weight:700;color:#3b2a1a;border:3px solid #3b2a1a;box-shadow:0 4px 0 #3b2a1a}
.jy-lhead h3{margin:0;font-family:var(--f-display);font-size:clamp(22px,3vw,28px);line-height:1.3}
.jy-lhead small{display:block;color:var(--text-3);font-size:13px}
.jy-lhead .btn-ghost{margin-inline-start:auto}
.jy-dots{display:flex;gap:6px;margin:0 0 14px}
.jy-dots i{flex:1;height:6px;border-radius:999px;background:var(--line-2);transition:background .3s}
.jy-dots i.on{background:var(--gold)}
.jy-card{padding:clamp(20px,3.5vw,32px);border-radius:26px;animation:fadeUp .35s var(--ease) both}
.jy-card h4{margin:0 0 10px;font-family:var(--f-display);font-size:22px;color:var(--gold)}
.jy-card p{margin:0 0 12px;font-size:17px;line-height:2;color:var(--text)}
.jy-hl{color:var(--gold);font-weight:600}
.jy-ex{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.jy-ex div{font-family:var(--f-text);font-size:clamp(19px,2.4vw,22px);line-height:1.7;padding:10px 16px;border-radius:14px;background:var(--surface-2);border-inline-start:3px solid var(--gold)}
.jy-sent{display:flex;flex-wrap:wrap;gap:10px 14px;justify-content:center;margin:14px 0 6px;direction:rtl}
.jy-w{font-family:var(--f-text);font-size:clamp(24px,3.4vw,32px);line-height:1.5;padding:6px 14px 10px;border-radius:14px;border:2px dashed var(--line-2);background:var(--surface-2);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:2px;min-width:64px;color:var(--text);transition:transform .2s var(--ease),border-color .2s,background .2s}
.jy-w:hover{transform:translateY(-2px);border-color:var(--gold)}
.jy-w small{font-family:var(--f-ui);font-size:12.5px;font-weight:600;color:var(--c,var(--gold));min-height:1.2em;opacity:0;transition:opacity .3s}
.jy-w.shown{border-style:solid;border-color:var(--c,var(--gold))}
.jy-w.shown small{opacity:1}
.jy-w.good{border-style:solid;border-color:var(--good);background:color-mix(in srgb,var(--good) 16%,var(--surface-2))}
.jy-w.bad{border-style:solid;border-color:var(--bad);animation:jyShake .35s}
.jy-hint{font-size:14px;color:var(--text-3);text-align:center;margin:4px 0 0}
.jy-fb{margin-top:12px;padding:12px 16px;border-radius:14px;font-size:15.5px;line-height:1.9;animation:fadeUp .3s var(--ease) both}
.jy-fb.ok{background:color-mix(in srgb,var(--good) 14%,transparent);border-inline-start:3px solid var(--good)}
.jy-fb.no{background:color-mix(in srgb,var(--bad) 12%,transparent);border-inline-start:3px solid var(--bad)}
.jy-sort{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.jy-item{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:10px 14px;border-radius:16px;background:var(--surface-2);border:2px solid transparent;transition:border-color .25s}
.jy-item b{font-family:var(--f-text);font-size:clamp(19px,2.4vw,22px);font-weight:400;flex:1;min-width:120px}
.jy-item.good{border-color:var(--good)}
.jy-item.bad{animation:jyShake .35s;border-color:var(--bad)}
.jy-chips{display:flex;gap:6px;flex-wrap:wrap}
.jy-chip{border:1px solid var(--line-2);background:var(--surface);border-radius:999px;padding:6px 14px;font:inherit;font-size:14px;color:var(--text-2);cursor:pointer;transition:all .2s}
.jy-chip:hover{border-color:var(--gold);color:var(--text)}
.jy-chip.on{background:var(--good);border-color:var(--good);color:#10240f}
.jy-nav{display:flex;gap:10px;justify-content:space-between;margin-top:16px}
.jy-opts{display:grid;gap:10px;margin-top:12px}
.jy-opt{text-align:start;font:inherit;font-size:16.5px;line-height:1.7;padding:12px 16px;border-radius:16px;border:1.5px solid var(--line-2);background:var(--surface-2);color:var(--text);cursor:pointer;transition:border-color .2s,background .2s}
.jy-opt:hover:not(:disabled){border-color:var(--gold)}
.jy-opt:disabled{cursor:default}
.jy-opt.good{border-color:var(--good);background:color-mix(in srgb,var(--good) 16%,var(--surface-2))}
.jy-opt.bad{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 14%,var(--surface-2))}
.jy-qtop{display:flex;justify-content:space-between;color:var(--text-3);font-size:14px;margin-bottom:6px}
.jy-q{font-size:19px;line-height:1.9;margin:0;font-weight:500}
.jy-result{text-align:center}
.jy-result .big{font-family:var(--f-display);font-size:56px;line-height:1.1;color:var(--gold);margin:6px 0}
.jy-result .q-actions,.jy-result .acts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.jy-weak{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:10px}
.jy-cert{max-width:620px;margin:16px auto 0;padding:30px 26px;border-radius:24px;text-align:center;position:relative;
  background:radial-gradient(circle at 50% 0,color-mix(in srgb,var(--gold) 22%,var(--surface)),var(--surface) 70%);border:2px solid var(--gold)}
.jy-cert::before{content:"";position:absolute;inset:8px;border:1px dashed color-mix(in srgb,var(--gold) 60%,transparent);border-radius:18px;pointer-events:none}
.jy-cert h3{margin:0;font-family:var(--f-display);font-size:30px;color:var(--gold)}
.jy-cert .nm{font-family:var(--f-text);font-size:30px;margin:10px 0}
.jy-cert p{color:var(--text-2);margin:4px 0}
.jy-confetti{position:fixed;inset:0;pointer-events:none;z-index:80;overflow:hidden}
.jy-confetti i{position:absolute;top:-12px;width:10px;height:14px;border-radius:3px;animation:jyFall linear forwards}
@keyframes jyFall{to{transform:translateY(110vh) rotate(720deg)}}

/* ---------- الشروحات ---------- */
.vd-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.vd-card{border-radius:22px;overflow:hidden;display:flex;flex-direction:column;animation:fadeUp .4s var(--ease) both;animation-delay:calc(var(--i,0)*40ms)}
.vd-frame{position:relative;aspect-ratio:16/9;background:#0d0a07;display:grid;place-items:center;overflow:hidden}
.vd-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vd-thumb{position:absolute;inset:0;border:0;padding:0;cursor:pointer;background:#000 center/cover no-repeat}
.vd-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.55),transparent 55%)}
.vd-play{position:absolute;inset:0;margin:auto;width:68px;height:48px;border-radius:14px;background:#e3342f;display:grid;place-items:center;z-index:1;transition:transform .2s}
.vd-thumb:hover .vd-play{transform:scale(1.08)}
.vd-play::before{content:"";border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff;margin-inline-start:4px}
.vd-frame.soon{aspect-ratio:auto;padding:26px 16px;background:var(--surface-2)}
.vd-soon{color:var(--text-3);font-size:15px;display:flex;flex-direction:column;align-items:center;gap:8px}
.vd-soon svg{width:40px;height:40px;stroke:currentColor;fill:none;stroke-width:1.4;opacity:.7}
.vd-body{padding:14px 18px 18px}
.vd-body small{color:var(--text-3);font-size:12.5px}
.vd-body h3{margin:2px 0 0;font-family:var(--f-display);font-size:20px;line-height:1.4}
.vd-sum{color:var(--text-2);font-size:14.5px;margin:-6px 0 16px}
@media (max-width:760px){.vd-grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion: reduce){.jy-mascot,.jy-node .pulse{animation:none}.jy-confetti{display:none}}