:root{
  color-scheme:light;
  --navy:#16345c;--blue:#3569d4;--indigo:#483c9e;--teal:#13878e;
  --ink:#192b42;--muted:#60748c;--border:#dfe7f5;--white:#fff;
  --bg:#f4f7fd;--soft:#edf3ff;--yellow:#ffe269;--green:#166e58;
  font-family:system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);min-height:100vh}
button,input,select{font:inherit}button,a,select,input{outline-offset:3px}
a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.53}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #89affb}
p{line-height:1.85}h1,h2,h3{line-height:1.35}
.page-shell{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:100vh;direction:rtl}
.sidebar{height:100vh;position:sticky;top:0;overflow-y:auto;border-left:1px solid var(--border);background:white;padding:20px 15px;z-index:30}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;padding:10px 8px}
.brand-symbol{display:grid;place-items:center;width:47px;height:47px;border-radius:14px;background:linear-gradient(135deg,#d4e2ff,#e8ddff);font-size:27px}
.brand strong{display:block;font-size:19px;line-height:1.3}.brand small{display:block;color:var(--muted);margin-top:3px}
.sidebar-home{display:flex;align-items:center;gap:9px;background:#eff4ff;color:#294e9b;border-radius:13px;padding:12px;margin:10px 0 14px;font-weight:750}
.sidebar-home:hover{background:#e2edff}
.search-input,.filter{width:100%;border:1px solid #d5dff0;border-radius:12px;background:white;padding:11px 12px;color:var(--ink)}
.search-input:focus,.filter:focus{border-color:#7a9ced}
.side-label{display:block;margin:11px 5px 7px;color:#647790;font-size:12px;font-weight:800}
.level-nav{margin-top:12px}
.level-group{border-bottom:1px solid #edf0f8;padding:5px 0}
.level-group>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;cursor:pointer;padding:9px 7px;font-weight:800;color:#3c5171;border-radius:9px}
.level-group>summary::-webkit-details-marker{display:none}
.level-group>summary .qty{font-size:12px;color:#8091a7;font-weight:600}
.side-link{display:flex;align-items:center;gap:9px;padding:9px 8px;border-radius:10px;font-size:13px;line-height:1.5;color:#405673}
.side-link:hover{background:#f2f5fd}
.side-link.active{background:#eaf0ff;color:#174d9f;font-weight:800;border:1px solid #c8d9fa}
.side-num{display:grid;place-items:center;min-width:27px;height:27px;border-radius:8px;background:#f0f3fa;color:#7385a0;font-size:11px}
.side-link.active .side-num{background:#c8ddff;color:#20529b}
.side-en{display:block;direction:ltr;text-align:left;font-weight:650}
.side-ar{display:block;font-size:11px;color:#8291a4;margin-top:1px}
.side-footer{color:#7a899e;font-size:11px;line-height:1.9;margin:18px 5px}
.main{min-width:0;padding:29px clamp(16px,4.5vw,56px) 80px;max-width:1350px;width:100%;margin:0 auto}
.mobile-top{display:none}
.mobile-menu{border:1px solid #d5e0f2;background:white;border-radius:11px;padding:10px 14px;font-weight:800;color:#244b95}
.menu-cover{display:none}
.hero{background:linear-gradient(118deg,#183d79,#4546a0 72%,#4b63b7);border-radius:24px;color:white;padding:clamp(24px,4vw,46px);position:relative;overflow:hidden}
.hero:after{content:"";width:280px;height:280px;position:absolute;left:-85px;top:-125px;border:55px solid #ffffff12;border-radius:50%;pointer-events:none}
.hero-kicker{font-size:13px;font-weight:700;color:#d0e3ff;letter-spacing:.4px}
.hero h1{font-size:clamp(25px,3.2vw,39px);margin:11px 0 7px;max-width:780px}
.hero p{max-width:790px;margin:0;color:#e1e9ff;font-size:15px}
.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.hero-tags>span{background:#ffffff24;border:1px solid #ffffff27;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:700}
.action-primary,.action-secondary,.action-danger{border:0;border-radius:12px;padding:12px 15px;font-weight:800;display:inline-flex;gap:7px;align-items:center;justify-content:center}
.action-primary{color:white;background:var(--blue)}
.action-primary:hover{background:#2458c1}
.action-secondary{color:#29529c;background:#e8efff}
.action-secondary:hover{background:#dce8ff}
.action-danger{color:#9a2947;background:#fff0f4}
.action-danger:hover{background:#ffe3ed}
.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:21px}
.stat{background:white;border:1px solid var(--border);border-radius:14px;padding:16px}
.stat strong{display:block;color:#2c4c89;font-size:23px}.stat span{color:#687c92;font-size:12px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:13px;flex-wrap:wrap;margin:26px 0 15px}
.section-heading h2{font-size:23px;margin:0}.section-heading p{margin:5px 0 0;color:var(--muted);font-size:13px}
.filters-row{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(125px,.85fr));gap:10px}
.story-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}
.story-tile{border:1px solid var(--border);background:white;border-radius:17px;padding:18px;display:flex;flex-direction:column;min-height:255px;transition:box-shadow .2s,transform .2s,border-color .2s}
.story-tile:hover{border-color:#9db6eb;box-shadow:0 9px 26px #1b427513;transform:translateY(-2px)}
.tile-top{display:flex;justify-content:space-between;align-items:center}
.tile-emoji{font-size:33px;background:#f0f5ff;width:54px;height:54px;border-radius:15px;display:grid;place-items:center}
.level-pill{font-size:12px;padding:6px 9px;border-radius:9px;background:#eaf3f6;color:#167080;font-weight:800}
.level-A1{background:#eaf8f1;color:#237a52}.level-A2{background:#ecf5ff;color:#285eaf}
.level-B1{background:#f2eefe;color:#6751a8}.level-B2{background:#fff2e9;color:#ae5e29}
.tile-category{font-size:11px;color:#63809c;font-weight:750;margin:11px 0 4px}
.tile-title{direction:ltr;text-align:right;font-size:17px;line-height:1.4;margin:3px 0 5px;font-weight:850}
.tile-ar{font-weight:700;font-size:14px;color:#456184;margin:0 0 9px}
.tile-desc{font-size:12px;color:#6c7e92;line-height:1.75;flex:1;margin:0 0 10px}
.tile-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #ecf0f7;padding-top:12px;font-size:12px;color:#677d96}
.tile-link{color:#245ab9;font-weight:800}
.empty-result{background:white;padding:24px;border:1px solid var(--border);border-radius:14px;margin-top:14px}
.crumb{display:flex;gap:9px;align-items:center;flex-wrap:wrap;color:#68809a;font-size:13px;margin-bottom:19px}
.crumb a:hover{text-decoration:underline}
.story-intro{background:linear-gradient(110deg,#193e7c,#4d4ca8);border-radius:22px;padding:28px;color:white}
.intro-top{display:flex;gap:13px;align-items:center;flex-wrap:wrap}
.intro-emoji{font-size:37px;background:#ffffff20;border-radius:14px;padding:12px}
.intro-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12px}
.intro-meta>span{border:1px solid #ffffff3d;background:#ffffff20;padding:6px 9px;border-radius:999px}
.story-intro h1{direction:ltr;text-align:right;font-size:clamp(27px,4vw,38px);margin:16px 0 3px}
.story-intro h2{font-size:20px;color:#e7efff;margin:3px 0 10px}
.story-intro p{color:#d5e4ff;max-width:740px;margin:0;font-size:14px}
.path-nav{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin:17px 0 18px}
.path-nav a{font-size:13px;font-weight:750;color:#335faa;border:1px solid #dbe6f6;background:white;padding:10px 13px;border-radius:10px}
.path-nav a:hover{background:#eef3ff}
.player-bar{position:sticky;top:10px;z-index:12;background:#ffffffed;backdrop-filter:blur(11px);border:1px solid #d9e4f6;border-radius:17px;padding:14px;box-shadow:0 6px 25px #19345d12}
.player-buttons{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.player-buttons button{white-space:nowrap}
.player-buttons label{display:flex;align-items:center;gap:8px;background:#f3f6fc;padding:9px 11px;border-radius:11px;font-weight:700;color:#50647d;font-size:12px}
.player-buttons select{border:0;background:transparent;color:#264e9b;font-weight:800}
.player-status{font-size:12px;color:#506781;margin:10px 2px 0;min-height:19px}
.wake-status{color:#61768e;font-size:11px;margin:6px 2px 0;line-height:1.6}
.wake-status.ok{color:#166e58}.wake-status.warning{color:#ac6821}
.progress-track{margin-top:12px;background:#e9eef8;height:7px;border-radius:7px;overflow:hidden}
.progress-fill{width:0;height:100%;background:linear-gradient(90deg,#53b8aa,#3668d4);transition:width .2s}
.study-note{border:1px solid #dce6f5;background:#ecf3ff;border-radius:12px;padding:14px 16px;margin:17px 0;color:#345176;font-size:13px;line-height:1.9}
.chapter-block{margin-top:25px}
.chapter-head{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap;padding:7px 2px 13px;border-bottom:2px solid #dbe5f5}
.chapter-head h2{font-size:19px;margin:0;color:#25497c}
.chapter-head button{font-size:12px;padding:9px 11px}
.sentence{background:white;border:1px solid var(--border);border-radius:14px;padding:17px 18px;margin:12px 0;box-shadow:0 2px 10px #12315208;scroll-margin-top:45vh}
.sentence.current{border-color:#7b9de0;box-shadow:0 3px 15px #316cd01c}
.sentence-top{display:flex;justify-content:space-between;gap:9px;align-items:center;margin-bottom:7px}
.sentence-number{font-size:11px;font-weight:800;color:#8a9cb4}
.sentence-top button{font-size:11px;color:#315ea5;background:#eef4ff;border:0;padding:7px 10px;border-radius:8px}
.english{direction:ltr;text-align:left;font-family:Arial,"Segoe UI",sans-serif;line-height:2.1;font-size:clamp(20px,2.25vw,27px);font-weight:600;word-wrap:break-word}
.english .word{border-radius:5px;padding:1px 2px;transition:background-color .06s}
.english .word.active{background:var(--yellow);box-shadow:0 0 0 2px var(--yellow);color:#1c2b42}
.arabic{font-size:17px;line-height:1.85;color:#455f7d;margin-top:9px}
.hide-translation .arabic{display:none}
.glossary{background:#f0f4fd;border:1px solid #dce5f5;border-radius:12px;margin:14px 0;padding:13px 15px}
.glossary summary{cursor:pointer;font-weight:800;color:#31537f}
.vocab-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:8px;margin:11px 0 0}
.vocab-item{background:white;border:1px solid #e3eaf6;border-radius:9px;padding:9px 11px;font-size:13px}
.vocab-item b{display:block;direction:ltr;text-align:left;color:#315db0;font-size:14px;margin-bottom:3px}
.quiz-box{background:white;border:1px solid var(--border);border-radius:18px;margin:25px 0;padding:20px}
.quiz-box h2{margin:0;color:#294d82;font-size:21px}
.quiz-box>p{font-size:13px;color:#6b7f96;margin:7px 0}
.quiz-questions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:15px}
.quiz-card{background:#f5f8ff;border:1px solid #e0e8f6;border-radius:12px;padding:14px}
.quiz-card strong{font-size:14px;display:block}
.quiz-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:10px}
.quiz-option{border:1px solid #d7e1f1;background:white;border-radius:9px;padding:8px 10px;font-size:12px;min-height:43px}
.quiz-option:hover:not(:disabled){border-color:#6f9aed;background:#edf4ff}
.quiz-option.correct{background:#def5e9;border-color:#70bfa0;color:#136547}
.quiz-option.wrong{background:#ffeaed;border-color:#ee99a5;color:#a32d4b}
.quiz-feedback{font-size:12px;min-height:16px;color:#66788f;margin-top:7px}
.lesson-footnote{color:#71839b;font-size:12px;line-height:1.9;margin-top:16px}
.reader-bottom-space{height:48vh}
.bottom-nav{border-top:1px solid #dfe7f2;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:10px;padding-top:20px}
.bottom-nav a{border-radius:11px;padding:12px 14px;background:white;border:1px solid #d5e1f3;color:#2a59a8;font-weight:800;font-size:13px}
@media(max-width:1180px){.story-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:850px){
  .page-shell{display:block}.sidebar{position:fixed;top:0;right:0;width:min(335px,89vw);transform:translateX(110%);transition:transform .25s;z-index:50;box-shadow:0 0 30px #122b4f24}
  body.menu-open .sidebar{transform:translateX(0)}.menu-cover{position:fixed;inset:0;background:#0a22476a;z-index:45}
  body.menu-open .menu-cover{display:block}
  .mobile-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:-2px 0 15px}
  .mobile-top strong{color:#345593;font-size:14px}.main{padding:18px 14px 60px}
}
@media(max-width:590px){
 .hero{border-radius:18px;padding:24px 18px}.hero h1{font-size:27px}
 .story-cards{grid-template-columns:1fr}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .filters-row{grid-template-columns:1fr 1fr}.filters-row input{grid-column:1/-1}
 .player-bar{top:3px;padding:10px 9px;border-radius:12px}
 .player-buttons{gap:6px}.player-buttons button{font-size:12px;padding:10px 11px}
 .player-buttons label{font-size:11px;padding:7px}.player-status{font-size:11px}
 .chapter-head h2{font-size:17px}.sentence{padding:13px 13px}
 .english{font-size:22px}.arabic{font-size:16px}
 .quiz-questions{grid-template-columns:1fr}
 .story-intro{border-radius:17px;padding:21px 17px}
 .intro-meta>span{font-size:11px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

[hidden]{display:none!important}