@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@300;400;500;700;800;900&display=swap');
:root{--bg:#07111f;--bg-card:#0d1d30;--bg-card2:#112238;--primary:#00c2d4;--primary-d:#0099aa;--primary-glow:rgba(0,194,212,.18);--accent:#f59e0b;--accent-d:#d97706;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--txt:#dceeff;--txt2:#7da0bf;--border:#1a3050;--radius:14px;--radius-sm:8px;--shadow:0 8px 32px rgba(0,0,0,.4);--shadow-c:0 4px 24px var(--primary-glow)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;direction:rtl}
body{font-family:'Tajawal',sans-serif;background:var(--bg);color:var(--txt);min-height:100vh;line-height:1.7}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--primary-d);border-radius:3px}
h1,h2,h3,h4,h5{font-weight:800;line-height:1.3}
.lead{font-size:1.1rem;color:var(--txt2)}
.navbar{background:rgba(7,17,31,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:.9rem 2rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.navbar-brand{font-size:1.5rem;font-weight:900;color:var(--primary);text-decoration:none}
.navbar-brand span{color:var(--accent)}
.nav-links{display:flex;gap:1.5rem}
.nav-links a{color:var(--txt2);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--primary)}
.hero{text-align:center;padding:5rem 1.5rem 3rem;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(0,194,212,.12) 0%,transparent 70%);pointer-events:none}
.hero-badge{display:inline-block;background:rgba(0,194,212,.12);border:1px solid rgba(0,194,212,.3);color:var(--primary);border-radius:100px;padding:.3rem 1.1rem;font-size:.85rem;font-weight:700;margin-bottom:1.2rem}
.hero h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:900}
.hero h1 .highlight{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem;max-width:1000px;margin:0 auto;padding:1rem 1.5rem 3rem}
.subject-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:2rem 1.5rem;cursor:pointer;transition:transform .25s,border-color .25s,box-shadow .25s;text-align:center;text-decoration:none;color:var(--txt);display:block}
.subject-card:hover{transform:translateY(-6px);border-color:var(--primary);box-shadow:var(--shadow-c);color:var(--txt)}
.subject-card .icon{font-size:3rem;display:block;margin-bottom:1rem}
.subject-card h3{font-size:1.4rem;font-weight:800}
.subject-card p{color:var(--txt2);font-size:.9rem;margin-top:.4rem}
.subject-card .count-badge{display:inline-block;margin-top:1rem;background:var(--primary-glow);border:1px solid rgba(0,194,212,.3);color:var(--primary);border-radius:100px;padding:.2rem .8rem;font-size:.8rem;font-weight:700}
.section-title{text-align:center;padding:2rem 1rem 1rem}
.section-title h2{font-size:1.8rem}
.section-title p{color:var(--txt2);margin-top:.4rem}
.grade-card{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius);padding:1.5rem;cursor:pointer;transition:transform .2s,border-color .2s,box-shadow .2s;text-align:center}
.grade-card:hover,.grade-card.selected{border-color:var(--primary);box-shadow:var(--shadow-c);transform:translateY(-3px)}
.grade-card.selected{background:var(--bg-card2)}
.btn{display:inline-flex;align-items:center;gap:.5rem;border:none;cursor:pointer;font-family:'Tajawal',sans-serif;font-weight:700;border-radius:var(--radius-sm);transition:transform .15s,opacity .15s;text-decoration:none}
.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-d));color:#fff;padding:.75rem 2rem;font-size:1rem;box-shadow:0 4px 16px var(--primary-glow)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-d));color:#fff;padding:.75rem 2rem;font-size:1rem}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--txt2);padding:.7rem 1.5rem;font-size:.95rem}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-success{background:linear-gradient(135deg,var(--success),#059669);color:#fff;padding:.75rem 2rem;font-size:1rem}
.btn-danger{background:linear-gradient(135deg,var(--danger),#dc2626);color:#fff;padding:.6rem 1.2rem;font-size:.9rem}
.btn-sm{padding:.4rem .9rem!important;font-size:.85rem!important}
.btn-lg{padding:1rem 2.5rem!important;font-size:1.1rem!important}
.btn[disabled]{opacity:.5;pointer-events:none}
.btn-block{width:100%;justify-content:center}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.progress-bar-wrap{background:var(--border);border-radius:100px;height:6px;overflow:hidden;margin:.5rem 0}
.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:100px;transition:width .5s ease}
.quiz-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;gap:1rem;flex-wrap:wrap}
.quiz-counter{font-size:.9rem;color:var(--txt2);font-weight:600}
.quiz-score-live{background:var(--primary-glow);border:1px solid rgba(0,194,212,.25);color:var(--primary);border-radius:100px;padding:.25rem .9rem;font-size:.85rem;font-weight:700}
.question-box{background:var(--bg-card2);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;margin-bottom:1.5rem}
.question-text{font-size:1.15rem;font-weight:600;line-height:1.8}
.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;margin-top:1.5rem}
@media(max-width:600px){.options-grid{grid-template-columns:1fr}}
.option-btn{background:var(--bg-card);border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:1rem 1.2rem;cursor:pointer;text-align:right;font-family:'Tajawal',sans-serif;font-size:.95rem;font-weight:500;color:var(--txt);transition:border-color .2s,background .2s,transform .15s;display:flex;align-items:center;gap:.8rem}
.option-btn:hover:not(.disabled){border-color:var(--primary);background:var(--bg-card2);transform:translateX(-3px)}
.option-label{background:var(--border);color:var(--txt2);min-width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;flex-shrink:0}
.option-btn.correct{border-color:var(--success)!important;background:rgba(16,185,129,.1)!important}
.option-btn.correct .option-label{background:var(--success);color:#fff}
.option-btn.wrong{border-color:var(--danger)!important;background:rgba(239,68,68,.1)!important}
.option-btn.wrong .option-label{background:var(--danger);color:#fff}
.option-btn.disabled{cursor:default}
.feedback-box{border-radius:var(--radius-sm);padding:1.2rem 1.5rem;margin-top:1.2rem;display:none;font-size:.95rem;border-right:4px solid}
.feedback-box.show{display:block}
.feedback-box.correct-fb{background:rgba(16,185,129,.1);border-color:var(--success);color:var(--success)}
.feedback-box.wrong-fb{background:rgba(239,68,68,.1);border-color:var(--danger);color:var(--danger)}
.feedback-box .explanation{margin-top:.6rem;color:var(--txt);font-weight:500;font-size:.9rem}
.timer-box{background:var(--bg-card2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.5rem 1rem;font-size:1.1rem;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:.5rem}
.timer-box.danger{color:var(--danger);border-color:var(--danger)}
.exam-nav{display:flex;flex-wrap:wrap;gap:.5rem}
.exam-nav-btn{width:40px;height:40px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--txt2);cursor:pointer;font-family:'Tajawal',sans-serif;font-weight:700;font-size:.85rem;transition:border-color .2s,background .2s}
.exam-nav-btn:hover{border-color:var(--primary);color:var(--primary)}
.exam-nav-btn.answered{background:var(--primary-glow);border-color:var(--primary);color:var(--primary)}
.exam-nav-btn.active{background:var(--primary);color:#fff}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;text-align:center}
.stat-card .stat-num{font-size:2.5rem;font-weight:900;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-card .stat-label{color:var(--txt2);font-size:.9rem;margin-top:.3rem}
.table-wrap{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse;font-size:.9rem}
.data-table th{background:var(--bg-card2);color:var(--txt2);font-weight:700;padding:.9rem 1rem;text-align:right;border-bottom:1px solid var(--border)}
.data-table td{padding:.9rem 1rem;border-bottom:1px solid var(--border);color:var(--txt)}
.data-table tr:hover td{background:rgba(255,255,255,.02)}
.badge{display:inline-block;border-radius:100px;padding:.2rem .7rem;font-size:.78rem;font-weight:700}
.badge-success{background:rgba(16,185,129,.15);color:var(--success);border:1px solid rgba(16,185,129,.3)}
.badge-danger{background:rgba(239,68,68,.15);color:var(--danger);border:1px solid rgba(239,68,68,.3)}
.badge-primary{background:var(--primary-glow);color:var(--primary);border:1px solid rgba(0,194,212,.3)}
.badge-warning{background:rgba(245,158,11,.15);color:var(--accent);border:1px solid rgba(245,158,11,.3)}
.topic-tree{margin-top:1rem}
.topic-main-label{font-weight:800;color:var(--primary);font-size:1rem;margin:1.2rem 0 .5rem;display:flex;align-items:center;gap:.5rem;cursor:pointer}
.topic-sub-group{padding-right:1.2rem}
.topic-sub-label{font-weight:700;color:var(--txt);font-size:.95rem;margin:.6rem 0 .3rem}
.indicator-item{display:flex;align-items:flex-start;gap:.6rem;padding:.4rem .2rem;cursor:pointer}
.indicator-item input[type="checkbox"]{width:18px;height:18px;margin-top:2px;cursor:pointer;accent-color:var(--primary)}
.indicator-item span{font-size:.88rem;color:var(--txt2);line-height:1.5}
.form-group{margin-bottom:1.2rem}
.form-label{font-weight:700;font-size:.9rem;margin-bottom:.4rem;display:block;color:var(--txt)}
.form-control,.form-select{width:100%;padding:.7rem 1rem;background:var(--bg-card2);border:1.5px solid var(--border);border-radius:var(--radius-sm);color:var(--txt);font-family:'Tajawal',sans-serif;font-size:.95rem;transition:border-color .2s;outline:none}
.form-control:focus,.form-select:focus{border-color:var(--primary)}
.form-select option{background:var(--bg-card2)}
textarea.form-control{resize:vertical;min-height:80px}
.form-hint{color:var(--txt2);font-size:.82rem;margin-top:.3rem}
.alert{border-radius:var(--radius-sm);padding:1rem 1.2rem;margin-bottom:1rem;font-weight:600}
.alert-success{background:rgba(16,185,129,.12);color:var(--success);border:1px solid rgba(16,185,129,.3)}
.alert-danger{background:rgba(239,68,68,.12);color:var(--danger);border:1px solid rgba(239,68,68,.3)}
.alert-info{background:var(--primary-glow);color:var(--primary);border:1px solid rgba(0,194,212,.3)}
.alert-warning{background:rgba(245,158,11,.12);color:var(--accent);border:1px solid rgba(245,158,11,.3)}
.admin-wrap{display:flex;min-height:100vh}
.admin-sidebar{width:230px;flex-shrink:0;background:var(--bg-card);border-left:1px solid var(--border);padding:1.5rem 1rem;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-sidebar .brand{font-size:1.3rem;font-weight:900;color:var(--primary);padding-bottom:1.2rem;border-bottom:1px solid var(--border);margin-bottom:1.2rem;display:block;text-decoration:none}
.admin-sidebar nav a{display:flex;align-items:center;gap:.6rem;color:var(--txt2);text-decoration:none;padding:.6rem .8rem;border-radius:var(--radius-sm);font-weight:600;font-size:.92rem;transition:background .2s,color .2s;margin-bottom:.3rem}
.admin-sidebar nav a:hover,.admin-sidebar nav a.active{background:var(--primary-glow);color:var(--primary)}
.admin-content{flex:1;padding:2rem}
.admin-header{margin-bottom:2rem;display:flex;align-items:center;justify-content:space-between}
.admin-header h1{font-size:1.6rem}
.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}
.text-center{text-align:center}.text-muted{color:var(--txt2)}.text-primary{color:var(--primary)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}
.d-flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}
.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}.flex-wrap{flex-wrap:wrap}.w-100{width:100%}
.hidden{display:none!important}
.score-ring-wrap{display:flex;flex-direction:column;align-items:center;gap:1rem;margin:2rem 0}
.score-ring{width:150px;height:150px;position:relative}
.score-ring svg{transform:rotate(-90deg)}
.score-ring .circle-bg{stroke:var(--border)}
.score-ring .circle-fill{stroke:var(--primary);stroke-linecap:round;transition:stroke-dashoffset 1s ease}
.score-ring .circle-fill.danger-ring{stroke:var(--danger)}.score-ring .circle-fill.ok-ring{stroke:var(--warning)}
.score-ring-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;font-weight:900}
.score-ring-text .pct{font-size:2rem;color:var(--primary)}.score-ring-text .pct.danger-txt{color:var(--danger)}.score-ring-text .pct.ok-txt{color:var(--warning)}
.score-ring-text small{font-size:.75rem;color:var(--txt2);display:block}
@media(max-width:768px){.navbar{padding:.7rem 1rem}.hero{padding:3rem 1rem 2rem}.admin-sidebar{display:none}.admin-content{padding:1rem}.cards-grid{grid-template-columns:1fr}}
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .4s ease forwards}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 0 0 var(--primary-glow)}50%{box-shadow:0 0 0 10px transparent}}
.pulse{animation:pulse-glow 2s infinite}