/* ==========================================================================
   Dr Ayman Morsy Academy — Community  (design system مستخرج من الـ mockups)
   RTL · Mobile-first · تركواز/أمبر طبي
   ========================================================================== */
:root{
  --teal:#0E6E6B; --teal-dark:#0A4F4D; --teal-soft:#E3F0EF; --teal-mist:#F2F7F7;
  --ink:#152B2E; --ink-soft:#4E6467; --line:#DCE8E7;
  --amber:#E8A33D; --amber-soft:#FBF1DE;
  --white:#FFFFFF; --bg:#F5F8F8;
  --chat-mine:#DCEFE3; --chat-other:#FFFFFF;
  --danger:#C4544B;
  --radius:14px;
  --shadow:0 1px 3px rgba(21,43,46,.07), 0 4px 14px rgba(21,43,46,.05);
}
*{margin:0;padding:0;box-sizing:border-box}
[x-cloak]{display:none!important}
html,body{height:100%}
body{
  font-family:'IBM Plex Sans Arabic',sans-serif;
  background:var(--bg); color:var(--ink);
  display:flex; justify-content:center;
  -webkit-font-smoothing:antialiased;
}
.app{width:100%; max-width:1180px; min-height:100vh; display:flex; background:var(--bg);}

/* ---------- Sidebar (desktop) ---------- */
.sidebar{
  width:236px; flex-shrink:0; background:var(--teal-dark);
  color:#fff; padding:22px 14px; display:flex; flex-direction:column; gap:4px;
  position:sticky; top:0; height:100vh;
}
.brand{display:flex; align-items:center; gap:10px; padding:6px 10px 20px}
.brand .logo{width:40px;height:40px;border-radius:12px;background:var(--white);display:grid;place-items:center;font-family:'Changa';font-weight:700;color:var(--teal);font-size:20px;}
.brand .t1{font-family:'Changa';font-size:16px;line-height:1.2}
.brand .t2{font-size:11px;opacity:.65}
.nav-item{
  display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:10px;
  cursor:pointer;font-size:14px;color:#CFE3E2;transition:background .15s;
  border:none;background:none;width:100%;text-align:right;font-family:inherit;text-decoration:none;
}
.nav-item:hover{background:rgba(255,255,255,.08)}
.nav-item.active{background:var(--teal);color:#fff;font-weight:600}
.nav-item .ico{width:20px;text-align:center;font-size:16px}
.nav-item .pill{margin-inline-start:auto;background:var(--amber);color:var(--ink);font-size:11px;font-weight:700;border-radius:20px;padding:1px 8px;}
.sidebar .spacer{flex:1}
.me{display:flex;align-items:center;gap:10px;padding:10px;border-radius:12px;background:rgba(255,255,255,.07);}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--amber);color:var(--ink);display:grid;place-items:center;font-weight:700;font-size:14px;flex-shrink:0}
.me .n{font-size:13px;font-weight:600}
.me .p{font-size:11px;color:var(--amber)}

/* ---------- Main ---------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  display:flex;align-items:center;gap:12px;padding:16px 22px;
  background:var(--white);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.topbar h1{font-family:'Changa';font-size:19px;color:var(--teal-dark)}
.topbar .sub{font-size:12px;color:var(--ink-soft)}
.topbar .bell{margin-inline-start:auto;position:relative;width:38px;height:38px;border-radius:50%;background:var(--teal-mist);display:grid;place-items:center;cursor:pointer;font-size:17px;text-decoration:none}
.bell .dot{position:absolute;top:6px;left:8px;width:9px;height:9px;border-radius:50%;background:var(--danger);border:2px solid #fff}

.screen{padding:20px 22px 90px;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- Dashboard ---------- */
.hero{
  background:linear-gradient(135deg,var(--teal) 0%,var(--teal-dark) 100%);
  border-radius:18px;color:#fff;padding:22px;display:flex;gap:16px;flex-wrap:wrap;
  align-items:center;box-shadow:var(--shadow);
}
.hero .hi{flex:1;min-width:200px}
.hero .hi h2{font-family:'Changa';font-size:22px;margin-bottom:4px}
.hero .hi p{font-size:13px;opacity:.85}
.streak{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:14px;padding:12px 18px;text-align:center;}
.streak .num{font-family:'Changa';font-size:26px;color:var(--amber)}
.streak .lbl{font-size:11px;opacity:.85}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:16px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card .eyebrow{font-size:11px;font-weight:700;color:var(--teal);letter-spacing:.4px;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.card h3{font-size:15px;margin-bottom:6px}
.card .meta{font-size:12px;color:var(--ink-soft);line-height:1.7}
.btn{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:9px 16px;border-radius:10px;
  background:var(--teal);color:#fff;font-size:13px;font-weight:600;border:none;cursor:pointer;font-family:inherit;
  transition:background .15s;text-decoration:none;
}
.btn:hover{background:var(--teal-dark)}
.btn.ghost{background:var(--teal-soft);color:var(--teal-dark)}
.btn.amber{background:var(--amber);color:var(--ink)}
.btn.block{width:100%;justify-content:center;margin-top:0}

.course-row{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.course{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow);cursor:pointer;
  transition:transform .12s;text-decoration:none;color:inherit;
}
.course:hover{transform:translateY(-1px)}
.course .cico{width:44px;height:44px;border-radius:12px;background:var(--teal-soft);display:grid;place-items:center;font-size:20px;flex-shrink:0}
.course .cbody{flex:1;min-width:0}
.course .cbody .cn{font-size:14px;font-weight:600;margin-bottom:6px}
.bar{height:7px;background:var(--teal-mist);border-radius:20px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--teal);border-radius:20px}
.course .pct{font-family:'Changa';font-size:16px;color:var(--teal);flex-shrink:0}
.course .unread{background:var(--danger);color:#fff;font-size:11px;font-weight:700;border-radius:20px;padding:2px 8px}

.sec-title{font-family:'Changa';font-size:16px;color:var(--teal-dark);margin:22px 0 4px;display:flex;align-items:center;gap:8px}
.save-btn{font-size:11.5px;font-weight:700;background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 12px;cursor:pointer;font-family:inherit;color:var(--teal-dark)}
.save-btn:hover{background:var(--teal-soft)}
.save-btn:disabled{opacity:.6;cursor:default}
.empty{background:var(--white);border:1px dashed var(--line);border-radius:var(--radius);padding:26px;text-align:center;color:var(--ink-soft);font-size:13px}

/* ---------- Leaderboard mini ---------- */
.lb{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-top:8px}
.lb .row{display:flex;align-items:center;gap:12px;padding:11px 16px;border-bottom:1px solid var(--line);font-size:13px}
.lb .row:last-child{border-bottom:none}
.lb .rank{font-family:'Changa';font-size:15px;width:22px;color:var(--ink-soft)}
.lb .row.me-row{background:var(--amber-soft)}
.lb .lpts{margin-inline-start:auto;font-family:'Changa';color:var(--teal);font-size:14px}
.badge-mini{font-size:9px;background:var(--amber);color:var(--ink);border-radius:6px;padding:0 5px;font-weight:700}

/* ---------- Course community tabs ---------- */
.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:14px;border-bottom:1px solid var(--line)}
.tab{white-space:nowrap;padding:9px 14px;border-radius:10px 10px 0 0;font-size:13px;font-weight:600;color:var(--ink-soft);cursor:pointer;border:none;background:none;font-family:inherit;text-decoration:none}
.tab.active{color:var(--teal);border-bottom:2px solid var(--teal)}

/* ---------- Chat (WhatsApp-like) ---------- */
.chat-wrap{display:flex;flex-direction:column;height:calc(100vh - 71px - 55px);border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.chat-head{display:flex;align-items:center;gap:12px;padding:12px 18px;background:var(--teal);color:#fff}
.chat-head .gavatar{width:40px;height:40px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:19px}
.chat-head .gn{font-weight:700;font-size:14px}
.chat-head .gs{font-size:11px;opacity:.85}
.chat-head .conn{margin-inline-start:auto;font-size:10.5px;background:rgba(255,255,255,.15);padding:4px 10px;border-radius:20px;display:flex;align-items:center;gap:5px}
.chat-head .conn .d{width:7px;height:7px;border-radius:50%;background:#8fd6a0}
.chat-head .mod-btn{width:32px;height:32px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.1);color:#fff;font-size:13px;cursor:pointer;flex-shrink:0}
.chat-head .mod-btn:first-of-type{margin-inline-start:auto}
.chat-head .mod-btn.on{background:var(--amber);border-color:var(--amber)}
.chat-head .mod-btn+.mod-btn{margin-inline-start:0}
.pinned{background:var(--amber-soft);border-bottom:1px solid var(--line);padding:8px 18px;font-size:12px;color:var(--ink);display:flex;gap:8px;align-items:center}
.pinned b{color:var(--teal-dark)}
.pinned span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pin-x{border:none;background:none;cursor:pointer;color:var(--ink-soft);font-size:13px}
.tombstone{background:transparent!important;border:1px dashed var(--line)!important;color:var(--ink-soft);font-size:12px;font-style:italic;box-shadow:none!important}
.menu-btn{opacity:.55;align-self:center;width:24px;height:26px;border:none;background:none;cursor:pointer;font-size:16px;color:var(--ink-soft);border-radius:6px;flex-shrink:0}
.msg:hover .menu-btn,.menu-btn:focus{opacity:1;background:var(--teal-mist)}
.msg-actions{display:flex;gap:4px;flex-wrap:wrap;margin-top:7px;padding-top:7px;border-top:1px dashed var(--line)}
.msg-actions button{border:1px solid var(--line);background:#fff;font-family:inherit;font-size:11.5px;padding:5px 10px;border-radius:20px;cursor:pointer;color:var(--ink);white-space:nowrap}
.msg-actions button:hover{background:var(--teal-mist)}
.msg-actions button.danger{color:var(--danger);border-color:#EBC9C4}
.msg-actions button.danger:hover{background:#FBEAE8}
.chat-body{flex:1;overflow-y:auto;padding:16px 16px 10px;background:var(--teal-mist);
  background-image:radial-gradient(var(--line) .8px, transparent .8px);background-size:22px 22px;
  display:flex;flex-direction:column;gap:10px;}
.day-chip{align-self:center;background:#fff;border:1px solid var(--line);font-size:11px;color:var(--ink-soft);padding:3px 12px;border-radius:20px}
.msg{max-width:78%;display:flex;gap:8px;align-items:flex-end}
.msg .mavatar{width:28px;height:28px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;font-size:11px;font-weight:700;color:#fff;background:var(--teal)}
.bubble{background:var(--chat-other);border:1px solid var(--line);border-radius:14px;border-bottom-right-radius:4px;
  padding:8px 12px;font-size:13.5px;line-height:1.7;box-shadow:0 1px 1px rgba(0,0,0,.04);word-break:break-word}
.msg.mine{align-self:flex-start;flex-direction:row-reverse}
.msg.mine .bubble{background:var(--chat-mine);border-bottom-right-radius:14px;border-bottom-left-radius:4px}
.bubble .who{font-size:11.5px;font-weight:700;color:var(--teal);margin-bottom:2px;display:flex;gap:5px;align-items:center}
.bubble .time{font-size:10px;color:var(--ink-soft);text-align:left;margin-top:3px}
.chat-empty{align-self:center;margin:auto;color:var(--ink-soft);font-size:13px;text-align:center}
.bubble{position:relative}
.msg .react-btn{opacity:.55;align-self:center;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:12px;flex-shrink:0;transition:opacity .12s}
.msg:hover .react-btn,.msg .react-btn:focus{opacity:1}
.rpick{margin-top:6px;background:var(--teal-mist);border:1px solid var(--line);border-radius:22px;padding:3px 6px;display:inline-flex;gap:2px;flex-wrap:wrap}
.rpick button{border:none;background:none;font-size:19px;cursor:pointer;padding:2px 5px;border-radius:8px;line-height:1;transition:transform .1s,background .1s}
.rpick button:hover{transform:scale(1.25);background:#fff}
.rbar{display:flex;gap:4px;flex-wrap:wrap;margin-top:5px}
.rchip{display:inline-flex;align-items:center;gap:3px;background:var(--teal-mist);border:1px solid var(--line);border-radius:20px;padding:1px 7px;font-size:11px;cursor:pointer;line-height:1.6}
.rchip.mine{background:var(--teal-soft);border-color:var(--teal)}
.rchip .rc{color:var(--ink-soft);font-weight:700}
.read-mark{font-size:10px;color:var(--ink-soft);margin-inline-start:6px;cursor:default}
.read-mark.seen{color:#3a86c8;cursor:pointer}
.read-who{margin-top:4px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:5px 9px;font-size:10.5px;color:var(--ink);box-shadow:var(--shadow)}
.read-who b{color:var(--teal)}
.chat-input{display:flex;align-items:center;gap:8px;padding:11px 14px;background:var(--white);border-top:1px solid var(--line);}
.ci-form{flex:1;display:flex;align-items:center;gap:8px;min-width:0}
.chat-input input[type=text]{flex:1;min-width:0;border:1px solid var(--line);border-radius:22px;padding:10px 16px;font-size:13.5px;font-family:inherit;outline:none;background:var(--bg);}
.chat-input input[type=text]:focus{border-color:var(--teal);background:#fff}
.chat-input .attach{width:38px;height:38px;border-radius:50%;background:var(--teal-mist);border:none;font-size:16px;cursor:pointer;flex-shrink:0}
.chat-input .attach:hover{background:var(--teal-soft)}
.chat-send{width:44px;height:44px;border-radius:50%;background:var(--teal);color:#fff;border:none;font-size:17px;cursor:pointer;flex-shrink:0;transition:background .15s}
.chat-send:hover{background:var(--teal-dark)}
.mic{min-width:44px;height:44px;padding:0 10px;border-radius:22px;background:var(--teal);color:#fff;border:none;font-size:16px;cursor:pointer;flex-shrink:0;transition:transform .15s,background .15s}
.mic.rec{background:var(--danger);animation:micpulse 1s infinite}
@keyframes micpulse{0%,100%{box-shadow:0 0 0 0 rgba(196,84,75,.4)}50%{box-shadow:0 0 0 8px rgba(196,84,75,0)}}
.chat-note{font-size:11px;color:var(--danger);padding:4px 14px;background:#FBEAE8}

/* media messages */
.mimg-link{display:block}
.mimg{max-width:230px;max-height:230px;border-radius:10px;display:block;margin-bottom:2px;cursor:pointer}
.vnote{display:flex;align-items:center;gap:9px;min-width:210px;padding:2px 0}
.vplay{width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;border:none;cursor:pointer;font-size:12px;display:grid;place-items:center;flex-shrink:0}
.vwave{flex:1;height:8px;background:#9FBEBC;border-radius:20px;overflow:hidden;cursor:pointer;min-width:70px}
.vfill{height:100%;background:var(--teal);border-radius:20px;width:0}
.vdur{font-size:10.5px;color:var(--ink-soft);flex-shrink:0;min-width:32px}
.vspeed{font-size:10px;font-weight:700;background:var(--teal-mist);border:1px solid var(--line);border-radius:12px;padding:2px 7px;cursor:pointer;color:var(--teal-dark);flex-shrink:0}
.mfile{display:flex;align-items:center;gap:10px;background:var(--teal-mist);border:1px solid var(--line);border-radius:10px;padding:9px 12px;min-width:200px;text-decoration:none;color:inherit}
.mfile .fico{width:34px;height:34px;border-radius:9px;background:var(--danger);color:#fff;display:grid;place-items:center;font-size:9px;font-weight:700;flex-shrink:0}
.mfile .fn{font-size:12.5px;font-weight:600;display:block;word-break:break-word}
.mfile .fs{font-size:10.5px;color:var(--ink-soft)}

/* ---------- PDF library ---------- */
.pdf-card{display:flex;gap:12px;align-items:flex-start}
.pdf-thumb{width:48px;height:60px;border-radius:8px;background:linear-gradient(135deg,var(--teal-soft),var(--teal-mist));display:grid;place-items:center;font-size:24px;flex-shrink:0;border:1px solid var(--line)}

/* ---------- PDF viewer / editor ---------- */
.pdf-toolbar{display:flex;gap:6px;flex-wrap:wrap;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:8px 12px;margin-bottom:8px;box-shadow:var(--shadow);position:sticky;top:70px;z-index:16}
.pdf-toolbar .tool{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:16px;cursor:pointer;transition:all .12s;display:grid;place-items:center}
.pdf-toolbar .tool:hover{background:var(--teal-mist)}
.pdf-toolbar .tool.on{background:var(--teal);border-color:var(--teal);transform:scale(1.05)}
.pdf-toolbar .tool.stamp{font-size:15px}
.tsep{width:1px;height:24px;background:var(--line);margin:0 3px}
.swatch{width:22px;height:22px;border-radius:50%;border:none;cursor:pointer;box-shadow:0 0 0 1px var(--line)}
.swatch.on{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--teal)}
.thick-wrap{display:inline-flex;align-items:center;gap:5px}
.thick-wrap input{width:80px;accent-color:var(--teal)}
.save-state{font-size:11.5px;color:var(--ink-soft)}
.pdf-subbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:7px 12px;margin-bottom:12px;font-size:12px}
.pdf-stage .canvas-container{position:relative!important;margin:0 auto;z-index:4;box-shadow:var(--shadow);border-radius:6px;overflow:hidden}
.pdf-bar{display:flex;align-items:center;justify-content:center;gap:14px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:9px 14px;margin-bottom:12px;box-shadow:var(--shadow);position:sticky;top:78px;z-index:15}
.pdf-stage{position:relative;max-width:680px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);overflow:hidden;user-select:none}
.pdf-page-img{display:block;width:100%;height:auto;-webkit-user-drag:none;user-select:none;pointer-events:none}
.wm{position:absolute;inset:0;display:flex;flex-wrap:wrap;align-content:space-around;justify-content:space-around;
  pointer-events:none;transform:rotate(-24deg) scale(1.3);opacity:.10;z-index:5}
.wm span{color:var(--teal-dark);font-size:15px;font-weight:700;white-space:nowrap;padding:26px 30px}
.pdf-footer{display:flex;align-items:center;justify-content:center;gap:14px;max-width:680px;margin:12px auto 0}
.pgbtn{border:1px solid var(--line);background:#fff;cursor:pointer;font-size:13px;padding:8px 14px;border-radius:10px;font-family:inherit;color:var(--teal-dark);font-weight:600}
.pgbtn:hover:not(:disabled){background:var(--teal-soft)}
.pgbtn:disabled{opacity:.4;cursor:default}
.pgnum{font-size:13px;color:var(--ink-soft)}
.pgnum b{color:var(--teal-dark);font-family:'Changa'}
.pdf-hint{font-size:11.5px;color:var(--ink-soft);text-align:center;margin:12px auto 0}
@media (max-width:820px){.pdf-bar{top:70px}}

/* ---------- PDF editor (lecture-builder style) ---------- */
.pdfx-toolbar{display:flex;gap:5px;flex-wrap:wrap;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:7px 10px;margin-bottom:8px;box-shadow:var(--shadow);position:sticky;top:70px;z-index:16}
.pdfx-tool{width:34px;height:32px;display:grid;place-items:center;border:1px solid var(--line);background:#fff;border-radius:9px;font-size:15px;cursor:pointer;color:var(--ink);transition:.12s}
.pdfx-tool:hover{background:var(--teal-mist)}
.pdfx-tool.active{background:var(--teal);border-color:var(--teal);color:#fff}
.pdfx-sep{width:1px;height:24px;background:var(--line);margin:0 3px}
.pdfx-opts{display:inline-flex;align-items:center;gap:6px}
.pdfx-swatch{width:22px;height:22px;border-radius:6px;border:2px solid transparent;cursor:pointer;box-shadow:0 0 0 1px var(--line)}
.pdfx-swatch.sel{border-color:var(--ink)}
.pdfx-swatch.hl{border-radius:5px;opacity:.9}
.pdfx-opts input[type=color]{width:28px;height:28px;padding:1px;border:1px solid var(--line);border-radius:6px;cursor:pointer}
.pdfx-opts input[type=range]{width:80px;accent-color:var(--teal)}
.pdfx-hint{font-size:12px;color:var(--ink-soft)}
.pdfx-mini{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 10px;font-size:12px;font-family:inherit;cursor:pointer;color:var(--teal-dark)}
.pdfx-mini:hover{background:var(--teal-mist)}
.pdfx-select{border:1px solid var(--line);border-radius:8px;padding:5px 8px;font-family:inherit;font-size:12px;background:#fff}
.pdfx-search{position:relative;margin-inline-start:auto}
.pdfx-search input{border:1px solid var(--line);border-radius:20px;padding:6px 12px;font-family:inherit;font-size:12.5px;outline:none;background:var(--bg);width:160px}
.pdfx-search input:focus{border-color:var(--teal);background:#fff;width:200px}
.pdfx-search-results{display:none;position:absolute;top:calc(100% + 6px);inset-inline-end:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);width:320px;max-height:260px;overflow-y:auto;z-index:20;padding:5px}
.pdfx-search-results.show{display:block}
.pdfx-search-results button{display:flex;gap:9px;align-items:flex-start;width:100%;text-align:start;border:none;background:none;font-family:inherit;font-size:12px;padding:7px 8px;border-radius:8px;cursor:pointer;color:var(--ink);line-height:1.55}
.pdfx-search-results button:hover{background:var(--teal-mist)}
.pdfx-search-results button b{color:var(--teal)}
.pdfx-sr-th{flex-shrink:0;width:44px;height:56px;border:1px solid var(--line);border-radius:5px;overflow:hidden;background:#fff}
.pdfx-sr-th img{width:100%;display:block}
.pdfx-sr-blank{width:100%;height:100%;background:#fff}
.pdfx-sr-info{flex:1;min-width:0}
.pdfx-sr-info em{font-style:normal;font-size:10px;color:var(--ink-soft);background:var(--teal-mist);border-radius:6px;padding:0 5px}
.pdfx-sr-empty{padding:10px;font-size:12px;color:var(--ink-soft);text-align:center}
.pdfx-hit{background:var(--amber);color:#152B2E;font-weight:800;border-radius:3px;padding:0 2px;box-shadow:0 0 0 1px rgba(0,0,0,.05)}
.pdfx-search-results button:hover .pdfx-hit{background:#ffd23f}
.pdfx-sr-cnt{font-size:10px;color:var(--teal);font-weight:700;margin-inline-start:4px}
.pdfx-flash{outline:3px solid var(--amber);outline-offset:2px;animation:pdfxFlash 1.4s ease}
@keyframes pdfxFlash{0%,100%{outline-color:transparent}30%{outline-color:var(--amber)}}

/* ملخص AI تحت كل صفحة (مُجهَّز مسبقًا) */
.pdfx-sum{margin:10px auto 26px;max-width:100%}
.pdfx-sum-btn{display:inline-flex;align-items:center;gap:6px;border:none;cursor:pointer;font-family:inherit;font-weight:700;font-size:13px;color:#fff;background:linear-gradient(135deg,#2E7D74,#1f5b57);padding:9px 16px;border-radius:22px;box-shadow:0 3px 10px rgba(31,91,87,.28);transition:transform .12s,box-shadow .12s}
.pdfx-sum-btn:hover{transform:translateY(-1px);box-shadow:0 5px 16px rgba(31,91,87,.36)}
.pdfx-sum-btn.admin-empty{background:none;color:var(--teal);border:1.5px dashed var(--teal);box-shadow:none}
.pdfx-sum-panel{display:none;margin-top:10px}
.pdfx-sum-panel.show{display:block;animation:fade .25s ease}
.pdfx-sum-think{display:flex;align-items:center;gap:14px;background:linear-gradient(135deg,#eafaf6,#fff);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.pdfx-sum-orb{font-size:26px;animation:sumOrb 1.4s ease-in-out infinite}
@keyframes sumOrb{0%,100%{transform:scale(1) rotate(0);opacity:.85}50%{transform:scale(1.25) rotate(12deg);opacity:1}}
.pdfx-sum-load b{font-size:13px;color:var(--teal-dark,#1f5b57);font-weight:700}
.pdfx-dots{display:inline-flex;gap:5px;margin-inline-start:8px;vertical-align:middle}
.pdfx-dots i{width:7px;height:7px;border-radius:50%;background:var(--teal);display:inline-block;animation:sumDot 1s infinite ease-in-out}
.pdfx-dots i:nth-child(2){animation-delay:.18s}.pdfx-dots i:nth-child(3){animation-delay:.36s}
@keyframes sumDot{0%,80%,100%{transform:scale(.5);opacity:.4}40%{transform:scale(1);opacity:1}}
.pdfx-sum-card{background:#fff;border:1px solid var(--line);border-inline-start:4px solid var(--teal);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow);animation:fade .3s ease}
.pdfx-sum-card.empty{color:var(--ink-soft);border-inline-start-color:var(--amber);text-align:center}
.pdfx-sum-head{font-weight:800;color:var(--teal-dark,#1f5b57);margin-bottom:8px;font-size:14px}
.pdfx-sum-body{font-size:14px;line-height:1.75;color:var(--ink)}
.pdfx-sum-body p{margin:0 0 7px}
.pdfx-sum-body ul{margin:0;padding-inline-start:20px}
.pdfx-sum-body li{margin-bottom:6px}
.pdfx-sum-edit{margin-top:10px;background:none;border:1px solid var(--line);border-radius:8px;padding:4px 12px;cursor:pointer;font-family:inherit;font-size:12px;color:var(--ink-soft)}
.pdfx-sum-ta{width:100%;min-height:120px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px;line-height:1.7;resize:vertical;unicode-bidi:plaintext}
.pdfx-sum-actions{display:flex;align-items:center;gap:10px;margin-top:8px}
.pdfx-sum-save{background:var(--teal);color:#fff;border:none;border-radius:8px;padding:6px 16px;cursor:pointer;font-family:inherit;font-weight:700;font-size:13px}
.pdfx-sum-state{font-size:12px;color:var(--ink-soft)}
/* نافذة استيراد الملخصات (أدمن) */
.pdfx-modal{display:none;position:fixed;inset:0;background:rgba(21,43,46,.45);z-index:1000;align-items:center;justify-content:center;padding:16px}
.pdfx-modal.show{display:flex;animation:fade .2s ease}
.pdfx-modal-box{background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.3);padding:20px;width:min(620px,96vw);max-height:90vh;overflow-y:auto}
.pdfx-modal-head{font-weight:800;font-size:16px;color:var(--teal-dark,#1f5b57);margin-bottom:8px}
.pdfx-modal-hint{font-size:13px;color:var(--ink-soft);line-height:1.7;margin-bottom:8px}
.pdfx-modal-ex{background:var(--teal-mist);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:12.5px;line-height:1.7;white-space:pre-wrap;margin:0 0 12px;unicode-bidi:plaintext;color:var(--ink)}
#pdfxSumFile{display:block;margin-bottom:10px;font-size:13px}
#pdfxSumText{width:100%;min-height:200px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-family:inherit;font-size:14px;line-height:1.7;resize:vertical;unicode-bidi:plaintext}
.pdfx-modal-actions{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.pdfx-save{font-size:11.5px;color:var(--ink-soft);margin-inline-start:6px}
.pdfx-sticker{display:none;grid-template-columns:repeat(6,1fr);gap:6px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow);max-width:280px;margin-bottom:10px}
.pdfx-sticker.show{display:grid}
.pdfx-fmt{position:fixed;display:none;align-items:center;gap:4px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 30px rgba(21,43,46,.22);padding:5px 8px;z-index:900}
.pdfx-fmt select{border:1px solid var(--line);border-radius:7px;padding:5px 7px;font-family:inherit;font-size:12px;background:#fff;max-width:130px}
.pdfx-fmt-sz{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-radius:8px;padding:2px 4px}
.pdfx-fmt-sz button{border:none;background:none;cursor:pointer;font-size:12px;font-weight:700;color:var(--teal-dark);padding:2px 5px}
.pdfx-fmt-sz span{font-size:12px;min-width:20px;text-align:center;color:var(--ink)}
.pdfx-fmt-b{width:30px;height:30px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink)}
.pdfx-fmt-b:hover{background:var(--teal-mist)}
.pdfx-fmt-c{display:inline-flex;align-items:center;gap:3px;font-size:12px;border:1px solid var(--line);border-radius:8px;padding:3px 6px;cursor:pointer}
.pdfx-fmt-c input[type=color]{width:22px;height:22px;padding:0;border:none;background:none;cursor:pointer}
.pdfx-sticker button{height:38px;font-size:20px;border:1px solid var(--line);background:var(--bg);border-radius:8px;cursor:pointer}
.pdfx-sticker button:hover{background:var(--teal-mist)}
.pdfx-body{display:flex;gap:10px;align-items:flex-start}
.pdfx-scroll{flex:1;min-width:0;max-height:calc(100vh - 200px);overflow:auto;display:flex;flex-direction:column;align-items:center;gap:20px;padding:8px;background:var(--teal-mist);border-radius:12px}
.pdfx-thumbs{width:96px;flex-shrink:0;max-height:calc(100vh - 200px);overflow-y:auto;padding:6px;background:var(--white);border:1px solid var(--line);border-radius:12px}
.pdfx-thumb{position:relative;margin-bottom:9px;border:2px solid var(--line);border-radius:6px;overflow:hidden;cursor:pointer;background:#fff}
.pdfx-thumb:hover{border-color:var(--teal)}
.pdfx-thumb img,.pdfx-thumb-blank{width:100%;display:block}
.pdfx-thumb-blank{height:110px;background:#fff}
.pdfx-tnum{position:absolute;top:2px;inset-inline-start:3px;background:rgba(21,43,46,.7);color:#fff;font-size:10px;padding:1px 5px;border-radius:4px}
.pdfx-page{position:relative;background:#fff;box-shadow:var(--shadow);flex-shrink:0}
.pdfx-base{display:block;width:100%;height:100%;-webkit-user-drag:none;user-select:none}
.pdfx-blank{background:#fff}
.pdfx-blank.lined{background-image:repeating-linear-gradient(#E7EFEE 0 1px,#fff 1px 34px)}
.pdfx-blank.grid{background-image:repeating-linear-gradient(#E7EFEE 0 1px,#fff 1px 30px),repeating-linear-gradient(90deg,#E7EFEE 0 1px,#fff 1px 30px)}
.pdfx-anno{position:absolute;top:0;inset-inline-start:0;touch-action:none;z-index:5}
.pdfx-objs{position:absolute;top:0;inset-inline-start:0;z-index:10;pointer-events:none}
.pdfx-obj{position:absolute;border:1px dashed transparent;pointer-events:auto}
.pdfx-obj.sel{border-color:var(--teal);border-style:solid;border-radius:8px}
.pdfx-obj.text{min-width:40px;cursor:default;color:var(--ink);line-height:1.5;font-family:inherit}
.pdfx-text-body{outline:none;white-space:pre-wrap;overflow-wrap:break-word;word-break:normal;unicode-bidi:plaintext;min-height:1.35em;min-width:1ch;padding:4px 9px;cursor:text;border-radius:7px}
.pdfx-text-body:empty:before{content:attr(data-ph);color:#9aa6a8;pointer-events:none}
.pdfx-obj.text.editing{background:rgba(255,255,255,.94);box-shadow:0 0 0 2px var(--teal);border-radius:9px}
.pdfx-obj.image img{width:100%;height:100%;display:block;pointer-events:none}
.pdfx-handle{position:absolute;width:16px;height:16px;background:var(--teal);border:2px solid #fff;border-radius:50%;bottom:-9px;right:-9px;cursor:nwse-resize;display:none;box-shadow:0 1px 4px rgba(0,0,0,.3);touch-action:none}
.pdfx-obj.text .pdfx-handle{border-radius:4px;cursor:se-resize}
.pdfx-obj.sel .pdfx-handle{display:block}
.pdfx-move{position:absolute;top:-14px;inset-inline-start:-14px;width:26px;height:26px;background:var(--teal);color:#fff;border-radius:50%;display:none;place-items:center;font-size:14px;cursor:move;box-shadow:0 1px 5px rgba(0,0,0,.3);user-select:none;line-height:1;touch-action:none}
.pdfx-obj.text.sel .pdfx-move{display:grid}
.pdfx-obj-del{position:absolute;top:-12px;inset-inline-end:-12px;width:22px;height:22px;background:var(--danger);color:#fff;border-radius:50%;border:none;font-size:11px;display:none;place-items:center;cursor:pointer}
.pdfx-obj.sel .pdfx-obj-del{display:grid}
.pdfx-wm{position:absolute;inset:0;display:flex;flex-wrap:wrap;align-content:space-around;justify-content:space-around;pointer-events:none;transform:rotate(-24deg) scale(1.3);opacity:.09;z-index:8}
.pdfx-wm span{color:var(--teal-dark);font-size:14px;font-weight:700;white-space:nowrap;padding:24px 28px}
@media(max-width:820px){.pdfx-thumbs{display:none}.pdfx-toolbar{top:64px}}

/* ---------- study rooms ---------- */
.room-select{width:100%;border:1px solid var(--line);border-radius:11px;padding:10px 12px;font-family:inherit;font-size:13.5px;outline:none;background:var(--bg)}
.room-select:focus{border-color:var(--teal);background:#fff}
.ferr{color:var(--danger);font-size:11.5px;margin-top:4px}
.code-box{display:flex;align-items:center;gap:8px;background:var(--teal-mist);border:1px dashed var(--teal);border-radius:10px;padding:8px 12px;flex-wrap:wrap}
.code-box b{font-family:'Changa';letter-spacing:2px;font-size:16px;color:var(--teal-dark);direction:ltr}
.save-chip{font-size:11px;background:var(--teal-mist);border:1px solid var(--line);border-radius:20px;padding:5px 11px;color:var(--ink-soft)}
.save-chip.ok{color:var(--teal-dark);font-weight:700}
.req-row{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
.req-row:last-child{border-bottom:none}
.req-row span{flex:1}

/* ---------- login page ---------- */
.auth-wrap{min-height:100vh;width:100%;display:grid;place-items:center;padding:20px;
  background:linear-gradient(135deg,var(--teal-mist),var(--bg));}
.auth-card{background:#fff;border-radius:20px;box-shadow:0 20px 60px rgba(21,43,46,.12);
  width:100%;max-width:400px;overflow:hidden}
.auth-top{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;padding:26px 24px;text-align:center}
.auth-top .logo{width:52px;height:52px;border-radius:14px;background:#fff;color:var(--teal);
  font-family:'Changa';font-weight:700;font-size:24px;display:grid;place-items:center;margin:0 auto 12px}
.auth-top b{font-family:'Changa';font-size:18px;display:block}
.auth-top span{font-size:12px;opacity:.8}
.auth-body{padding:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.field input{width:100%;border:1px solid var(--line);border-radius:11px;padding:11px 14px;
  font-family:inherit;font-size:14px;outline:none;background:var(--bg);transition:border .15s}
.field input:focus{border-color:var(--teal);background:#fff}
.alert{background:#FBEAE8;border:1px solid #E9C4BF;color:#9A3B32;border-radius:11px;
  padding:10px 13px;font-size:12.5px;margin-bottom:14px}
.auth-foot{text-align:center;font-size:11.5px;color:var(--ink-soft);margin-top:14px;line-height:1.8}
.auth-link{color:var(--teal);font-size:12.5px;font-weight:700;text-decoration:none}
.auth-link:hover{text-decoration:underline}

/* ---------- Bottom nav (mobile) ---------- */
.bottom-nav{display:none}
@media (max-width:820px){
  .sidebar{display:none}
  .screen{padding:16px 14px 92px}
  .bottom-nav{
    display:flex;position:fixed;bottom:0;right:0;left:0;background:var(--white);
    border-top:1px solid var(--line);padding:7px 4px calc(7px + env(safe-area-inset-bottom));
    justify-content:space-around;z-index:50;max-width:1180px;margin:0 auto;
  }
  .bn{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10.5px;color:var(--ink-soft);
    border:none;background:none;font-family:inherit;cursor:pointer;padding:4px 8px;border-radius:10px;position:relative;text-decoration:none;}
  .bn .i{font-size:19px}
  .bn.active{color:var(--teal);font-weight:700}
  .bn .bdot{position:absolute;top:2px;left:8px;width:8px;height:8px;background:var(--danger);border-radius:50%}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* لوحة تحكّم الأدمن */
.adm-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.adm-tab{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:22px;padding:8px 16px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:700}
.adm-tab.active{background:var(--teal);color:#fff;border-color:var(--teal)}
.adm-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}
.adm-stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;text-align:center;box-shadow:var(--shadow)}
.adm-stat b{display:block;font-size:26px;color:var(--teal-dark,#1f5b57)}
.adm-stat span{font-size:12.5px;color:var(--ink-soft)}
.adm-table-wrap{overflow-x:auto}
.adm-table{width:100%;border-collapse:collapse;font-size:13.5px}
.adm-table th{text-align:start;color:var(--ink-soft);font-weight:700;padding:8px 10px;border-bottom:2px solid var(--line);font-size:12px}
.adm-table td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}
.adm-table tr:hover{background:var(--teal-mist)}