/* ===== لغتي الجميلة — نسخة الويب =====
   الألوان نفسُها المستعملة في تطبيق iPad حتى لا تختلف التجربة. */
:root{
  /* هويّةُ «الحديقة» — الألوانُ نفسُها في تطبيقِ iPad */
  --primary:#06A77D; --primary-d:#058a67; --accent:#06A77D; --warm:#b3801f;
  --page:#FFFBF2; --card:#fff; --ink:#2B2B3A; --dim:#7B7A8C; --line:#EEF0EA;
  --sun:#FFD166; --sun-i:#5A4300; --sky:#8ECAE6; --sky-i:#0B3D5C; --mint:#B7E4C7; --mint-i:#1B4332;
  --peach:#FFB4A2; --peach-i:#6A2C1E; --lilac:#CDB4DB; --lilac-i:#3E2258; --rose:#FFC8DD; --rose-i:#6D2842;
  --r:24px; --shadow:0 4px 18px rgba(43,43,58,.06);
  --glass:rgba(255,255,255,.55); --glass-b:rgba(255,255,255,.75);
}
@media (prefers-color-scheme:dark){
  :root{ --page:#1b1a17; --card:#26241f; --ink:#f1ede4; --dim:#a39f94; --line:#38352e;
         --shadow:0 4px 18px rgba(0,0,0,.35); --glass:rgba(40,38,32,.55); --glass-b:rgba(255,255,255,.12); }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,"SF Arabic","Geeza Pro","Noto Naskh Arabic",system-ui,sans-serif;
  background:var(--page); color:var(--ink); line-height:1.85;
  -webkit-text-size-adjust:100%;
}
/* خلفيّةٌ هادئة: لمستان لونيّتان خافتتان فقط */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(60vw 60vw at 5% 95%, rgba(183,228,199,.35), transparent 65%),
             radial-gradient(45vw 45vw at 95% 0%, rgba(255,209,102,.28), transparent 65%)}
.boot{padding:40px;text-align:center;color:var(--dim)}
button{font:inherit;color:inherit}

/* ===== الهيكل ===== */
.shell{display:flex;min-height:100dvh}
.side{
  width:300px;flex:0 0 300px;background:var(--card);border-inline-start:1px solid var(--line);
  overflow-y:auto;padding:14px 12px 40px;position:sticky;top:0;height:100dvh;
}
.main{flex:1;min-width:0;overflow-x:hidden}
.wrap{max-width:940px;margin:0 auto;padding:20px 18px 70px}
@media (max-width:900px){
  .shell{display:block}
  .side{position:fixed;inset-block:0;inset-inline-end:0;z-index:60;transform:translateX(-100%);
        transition:transform .22s;box-shadow:-8px 0 30px rgba(0,0,0,.18);width:min(320px,86vw)}
  .side.open{transform:none}
  .scrim{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:55}
}
.topbar{
  position:sticky;top:0;z-index:40;background:transparent;
  display:flex;align-items:center;gap:12px;padding:8px 16px;
}
.topbar h1{display:none}
.burger{display:none}
/* حبّةُ التبويباتِ الزجاجيّة */
.glass{background:var(--glass);backdrop-filter:blur(28px) saturate(170%);-webkit-backdrop-filter:blur(28px) saturate(170%);
  border:1px solid var(--glass-b);box-shadow:0 10px 36px rgba(43,43,58,.10),inset 0 1px 0 rgba(255,255,255,.9)}
.pill{display:flex;gap:3px;padding:4px;border-radius:999px;margin:0 auto}
.pill button{border:0;background:transparent;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;color:var(--ink)}
.pill button.on{background:var(--ink);color:#fff}
.who{display:flex;align-items:center;gap:8px;min-width:0}
.who .av{width:38px;height:38px;border-radius:13px;background:var(--sun);display:grid;place-items:center;font-size:20px}
.who b{font-size:14px;display:block;line-height:1.2} .who small{font-size:11px;color:var(--dim)}
.rbtn{width:38px;height:38px;border-radius:50%;border:0;display:grid;place-items:center;cursor:pointer;font-size:15px;color:var(--ink)}
@media (max-width:760px){ .who b,.who small{display:none} .pill button span{display:none} .pill button{padding:8px 10px} }
/* القائمةُ الجانبيّة صارت درجًا يُفتحُ من زرِّ «الدروس» */
.side{position:fixed;inset-block:0;inset-inline-end:0;z-index:60;transform:translateX(-100%);
  transition:transform .22s;box-shadow:-8px 0 30px rgba(0,0,0,.18);width:min(340px,88vw)}
.side.open{transform:none}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.25);z-index:55}
.shell{display:block}

/* ===== عناصر ===== */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card.glass{background:var(--glass)}
.btn{
  display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;cursor:pointer;
  padding:10px 18px;background:var(--primary);color:#fff;font-weight:600;font-size:15px;
}
.btn:active{transform:translateY(1px)}
.btn{box-shadow:0 8px 20px rgba(6,167,125,.22);font-weight:800}
.btn.ghost{background:rgba(255,255,255,.75);color:var(--ink);border:0;box-shadow:none}
.btn.warm{background:var(--sun);color:var(--sun-i);box-shadow:none} .btn.accent{background:var(--mint);color:var(--mint-i);box-shadow:none}
.btn.sky{background:var(--sky);color:var(--sky-i);box-shadow:none} .btn.lilac{background:var(--lilac);color:var(--lilac-i);box-shadow:none}
.btn.sm{padding:7px 13px;font-size:13.5px}
.btn[disabled]{opacity:.45;cursor:default}
.chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 11px;font-size:13px;font-weight:600}
.chip.p{background:color-mix(in srgb,var(--primary) 16%,transparent);color:var(--primary)}
.chip.a{background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent)}
.chip.w{background:var(--sun);color:var(--sun-i)}
.muted{color:var(--dim)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
h2{font-size:23px;margin:0 0 10px} h3{font-size:19px;margin:0 0 8px}

/* ===== القائمة الجانبية ===== */
.navsec{margin:14px 4px 6px;font-size:12.5px;font-weight:700;color:var(--dim)}
.navitem{
  display:block;width:100%;text-align:start;background:none;border:0;cursor:pointer;
  padding:9px 12px;border-radius:11px;font-size:15px;line-height:1.5;
}
.navitem:hover{background:color-mix(in srgb,var(--primary) 8%,transparent)}
.navitem.on{background:color-mix(in srgb,var(--primary) 15%,transparent);color:var(--primary);font-weight:700}
.navitem small{display:block;color:var(--dim);font-size:11.5px;font-weight:400}

/* ===== الأسئلة ===== */
.q{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:17px;margin-bottom:15px}
.qhead{display:flex;gap:11px;align-items:flex-start}
.qnum{
  flex:0 0 auto;min-width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:var(--line);color:var(--ink);font-weight:700;font-size:14px;
}
.q.ok .qnum{background:var(--mint)} .q.bad .qnum{background:var(--peach)}
.qtext{font-size:18.5px;font-weight:500;margin:0}
.opt{
  display:flex;gap:10px;align-items:center;width:100%;text-align:start;cursor:pointer;
  background:var(--page);border:1px solid transparent;border-radius:12px;padding:11px 13px;margin-top:8px;font-size:16.5px;
}
.opt:hover{border-color:var(--line)}
.opt.sel{border-color:var(--primary);background:color-mix(in srgb,var(--primary) 10%,transparent)}
.opt.ok{border-color:var(--primary);background:var(--mint)}
.opt.bad{border-color:var(--peach);background:var(--peach)}
.opt i{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:2px solid var(--dim);display:inline-block}
.opt.sel i{border-color:var(--primary);background:var(--primary);box-shadow:inset 0 0 0 3px var(--card)}
.opt.ok i{border-color:var(--accent);background:var(--accent)}
.opt.bad i{border-color:var(--peach-i);background:var(--peach-i)}
input.txt,textarea.txt{
  width:100%;font:inherit;font-size:17px;padding:11px 13px;border-radius:12px;
  border:1px solid var(--line);background:var(--page);color:var(--ink);
}
.box{border-radius:12px;padding:12px 14px;margin-top:10px;font-size:16px}
.box.key{background:color-mix(in srgb,var(--sun) 45%,transparent)}
.box.method{background:color-mix(in srgb,var(--sky) 45%,transparent)}
.box.model{background:color-mix(in srgb,var(--mint) 60%,transparent)}
.box.bad{background:color-mix(in srgb,var(--peach) 55%,transparent)}
.box.prior{background:color-mix(in srgb,var(--accent) 8%,transparent);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.box b{font-weight:700}

/* ===== المحتوى القرائي ===== */
.blk{margin:0 0 14px;font-size:19px;line-height:2.05}
.blk.heading{font-size:21px;font-weight:700;color:var(--primary)}
.blk.note{background:color-mix(in srgb,var(--warm) 13%,transparent);padding:13px 15px;border-radius:13px;font-size:17.5px}
.blk.rule{background:color-mix(in srgb,var(--accent) 12%,transparent);padding:13px 15px;border-radius:13px}
.blk img{max-width:100%;border-radius:12px;display:block;margin:auto}
.verse{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin:7px 0;font-size:19px}
table.t{width:100%;border-collapse:collapse;font-size:16.5px}
table.t td,table.t th{border:1px solid var(--line);padding:8px 10px;text-align:start}
table.t tr:first-child{background:color-mix(in srgb,var(--primary) 12%,transparent);font-weight:700}

/* ===== أدوات ===== */
.tabs{display:flex;gap:8px;overflow-x:auto;padding:10px 2px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs{gap:3px;padding:4px;border-radius:999px;overflow-x:auto;width:max-content;max-width:100%}
.tab{white-space:nowrap;border:0;background:transparent;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:600;cursor:pointer}
.tab.on{background:var(--ink);color:#fff;font-weight:700}
.credit{text-align:center;color:var(--dim);font-size:12px;margin:22px 0 6px;opacity:.85}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.g3{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
.center{text-align:center}

/* علاماتُ ألوانِ الكتاب — تقابل bookText في التطبيق */
.bk b.bk-r { color: #c8102e; }
.bk b.bk-b { color: #1f5fbf; }
.bk b.bk-g { color: #218c3d; }
.bk b.bk-y { background: rgba(255, 220, 0, .55); border-radius: 3px; padding: 0 2px; }

/* ===== كيف تُبنى اللغة — الشرحُ المتحرّك ===== */
.bb{padding:18px 20px 14px}
.bb-chips{display:flex;gap:8px;overflow-x:auto;padding:2px 0 10px;scrollbar-width:none}
.bb-chips::-webkit-scrollbar{display:none}
.bb-chip{flex:0 0 auto;border:0;border-radius:99px;padding:6px 13px;font:inherit;font-size:14px;cursor:pointer;
  background:color-mix(in srgb,var(--ink) 8%,transparent);color:var(--ink)}
.bb-chip.on{background:var(--primary);color:#fff;font-weight:700}
.bb-title{text-align:center;font-size:clamp(22px,3.2vw,30px);margin:10px 0 4px;color:var(--primary)}
.bb-sub{text-align:center;font-size:17px;margin-bottom:18px}
.bb-body{min-height:300px;padding:6px 0 14px}
.bb-body.in{animation:bbIn .35s ease-out}
@keyframes bbIn{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}
.bb-ctl{border-top:1px solid var(--line);padding-top:12px;gap:10px}
.bb-ctl .btn:disabled{opacity:.4;cursor:default}

.bb-rv{opacity:0;transform:translateY(14px) scale(.92);transition:opacity .45s,transform .5s cubic-bezier(.2,.9,.3,1.15)}
.bb-rv.on{opacity:1;transform:none}
.bb-stack{display:flex;flex-direction:column;align-items:center;gap:12px}
.bb-stack.tight{gap:8px}
.bb-cols{display:flex;gap:14px;align-items:flex-start;width:100%;justify-content:center}
.bb-cols>*{flex:1 1 0;min-width:0}
.bb-col{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}
.bb-rv .bb-col,.bb-rv .bb-cols{width:100%}
.bb-rv{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%}

.bb-box{--t:var(--primary);display:inline-flex;flex-direction:column;align-items:center;gap:3px;
  padding:12px 18px;min-width:112px;border-radius:16px;text-align:center;
  background:color-mix(in srgb,var(--t) 10%,transparent);color:var(--t);border:1.5px solid color-mix(in srgb,var(--t) 45%,transparent)}
.bb-box.filled{background:var(--t);color:#fff;border-color:transparent}
.bb-box-t{font-size:21px;font-weight:700;line-height:1.4}
.bb-box.big .bb-box-t{font-size:30px}
.bb-box-x{font-size:15.5px;opacity:.92}
.bb-box.big .bb-box-x{font-size:19px}
.bb-arrow{font-size:24px;font-weight:700;opacity:.55;line-height:1}
.bb-branch{--t:var(--primary);height:2px;width:100%;background:color-mix(in srgb,var(--t) 35%,transparent);border-radius:2px}
.bb-note{text-align:center;color:var(--dim);font-size:18px;max-width:760px;white-space:pre-line}
.bb-def{text-align:center;color:var(--dim);font-size:15px;white-space:pre-line}
.bb-ex{text-align:center;color:var(--t);font-size:18px;font-weight:600;white-space:pre-line}
.bb-ex-big{font-size:28px;font-weight:700}
.bb-mark{text-align:center;color:var(--dim);font-size:13px;white-space:pre-line;padding:5px 8px;border-radius:10px;
  background:color-mix(in srgb,var(--t) 10%,transparent)}
.bb-small{--t:var(--accent);padding:8px 9px;border-radius:12px;text-align:center;width:100%;
  background:color-mix(in srgb,var(--t) 10%,transparent)}
.bb-small-t{font-size:15px;font-weight:600;white-space:pre-line}
.bb-small-x{font-size:15px;color:var(--t);white-space:pre-line}

.bb-letters{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:640px;margin:0 auto 18px}
.bb-letter{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:30px;font-weight:700;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);
  transform:scale(.6)}
.bb-letter.on{transform:none}

.bb-assemble{display:flex;flex-direction:column;align-items:center;gap:14px;width:100%}
.bb-glyphs{display:flex;gap:22px;transition:gap .6s cubic-bezier(.2,.9,.3,1.1)}
.bb-glyph{font-size:38px;font-weight:700;color:var(--t);padding:6px 12px;border-radius:12px;
  background:color-mix(in srgb,var(--t) 12%,transparent);transition:padding .6s,background .6s}
.bb-assemble.joined .bb-glyphs{gap:2px}
.bb-assemble.joined .bb-glyph{padding:6px 2px;background:transparent}

.bb-words{display:flex;gap:24px;justify-content:center;transition:gap .6s cubic-bezier(.2,.9,.3,1.1)}
.bb-word{font-size:28px;font-weight:700;color:var(--primary);padding:8px 14px;border-radius:12px;
  background:color-mix(in srgb,var(--primary) 14%,transparent);transition:background .6s,opacity .45s,transform .5s}
.bb-words.joined{gap:8px}
.bb-words.joined .bb-word{background:color-mix(in srgb,var(--primary) 6%,transparent)}
.bb-sentence{font-size:32px;font-weight:700;color:#fff;background:var(--primary);padding:14px 24px;border-radius:18px}
.bb-first{font-size:28px}
.bb-first mark{color:var(--t);background:color-mix(in srgb,var(--t) 18%,transparent);border-radius:10px;padding:2px 10px;font-weight:700}

.bb-para{position:relative;width:100%;max-width:760px;display:flex;flex-direction:column;gap:12px;padding:0;border-radius:16px;
  transition:gap .6s,padding .6s,background .6s}
.bb-sent{font-size:20px;padding:9px 14px;border-radius:10px;text-align:start;
  background:color-mix(in srgb,var(--primary) 10%,transparent);transition:background .6s,opacity .45s,transform .5s}
.bb-para.joined{gap:2px;padding:14px;background:color-mix(in srgb,var(--primary) 8%,transparent)}
.bb-para.joined .bb-sent{background:transparent}
.bb-tag{position:absolute;top:-10px;left:-8px;color:#fff;font-size:13px;font-weight:700;padding:3px 10px;border-radius:99px;
  opacity:0;transition:opacity .4s}
.bb-para.joined .bb-tag,.bb-text .bb-tag{opacity:1}
.bb-text{position:relative;width:100%;max-width:760px;padding:14px;border-radius:16px;display:flex;flex-direction:column;gap:9px;
  background:color-mix(in srgb,var(--accent) 7%,transparent)}
.bb-text i{display:block;height:26px;border-radius:8px;background:color-mix(in srgb,var(--accent) 16%,transparent)}
@media (max-width:700px){.bb-cols{flex-direction:column;align-items:stretch}.bb-letter{width:44px;height:44px;font-size:24px}}

/* ===== الرئيسة — الحديقة ===== */
.hero{position:relative;overflow:hidden;background:var(--primary);color:#fff;border-radius:32px;padding:28px;min-height:230px;
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;box-shadow:0 20px 40px rgba(6,167,125,.22);cursor:pointer}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.12)}
.hero::before{width:260px;height:260px;left:-80px;bottom:-110px}.hero::after{width:180px;height:180px;left:120px;bottom:-120px}
.hero h2{font-size:clamp(24px,3.6vw,38px);margin:0;line-height:1.2;color:#fff;position:relative}
.hero .go{position:relative;display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--primary);border-radius:999px;padding:12px 22px;font-weight:800;font-size:16px}
.home-top{display:grid;grid-template-columns:1.3fr 1fr;gap:18px;margin-bottom:22px}
@media (max-width:820px){.home-top{grid-template-columns:1fr}}
.tree{display:flex;align-items:flex-end;gap:14px}
.bar{height:12px;border-radius:99px;background:var(--line);overflow:hidden}.bar i{display:block;height:100%;background:var(--primary);border-radius:99px}
.dots{display:flex;gap:6px;align-items:center;margin-top:8px}.dots i{width:20px;height:20px;border-radius:50%;background:var(--line)}.dots i.on{background:var(--sun)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;margin:12px 0 22px}
.tile{border:0;text-align:start;cursor:pointer;border-radius:24px;padding:16px;min-height:140px;display:flex;flex-direction:column;justify-content:space-between;font:inherit}
.tile .ic{width:42px;height:42px;border-radius:14px;background:rgba(255,255,255,.6);display:grid;place-items:center;font-size:20px}
.tile b{font-size:16px;line-height:1.3}.tile small{font-size:12px;opacity:.75}
.t-sun{background:var(--sun);color:var(--sun-i)} .t-sky{background:var(--sky);color:var(--sky-i)} .t-mint{background:var(--mint);color:var(--mint-i)}
.t-peach{background:var(--peach);color:var(--peach-i)} .t-lilac{background:var(--lilac);color:var(--lilac-i)} .t-rose{background:var(--rose);color:var(--rose-i)}
.quick{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width:640px){.quick{grid-template-columns:1fr}}
.quick button{border:0;text-align:start;cursor:pointer;font:inherit;display:flex;align-items:center;gap:14px;padding:16px;border-radius:24px}
.quick .ic{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;font-size:22px;flex:0 0 auto}
.sec{display:flex;align-items:baseline;justify-content:space-between;margin:6px 0 0}.sec h3{font-size:21px;margin:0}