@import url('https://fonts.googleapis.com/css2?family=Aref+Ruqaa+Ink:wght@400;700&family=Changa:wght@500;600;700;800&family=Tajawal:wght@400;500;700;800&display=swap');

:root{
  --primary:#168a5b;
  --primary-dark:#0e5f40;
  --primary-deep:#0b3e2b;
  --primary-light:#eaf7f0;
  --secondary:#baf4d7;
  --surface:#ffffff;
  --surface-alt:#f4faf6;
  --text:#17231d;
  --muted:#617168;
  --border:#dce9e1;
  --shadow:0 18px 55px rgba(14,95,64,.10);
  --radius-xl:30px;
  --radius-lg:22px;
  --radius-md:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Tajawal',sans-serif;color:var(--text);background:var(--surface);overflow-x:hidden}
a{text-decoration:none;color:inherit}
button,input,select{font:inherit}
img{max-width:100%;display:block}
.wrap{width:min(1180px,calc(100% - 32px));margin:auto}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.8);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,233,225,.85)}
.nav{min-height:82px;display:flex;align-items:center;gap:28px}
.logo{display:flex;flex-direction:column;line-height:1;min-width:max-content}
.logo-calligraphy{font-family:'Aref Ruqaa Ink',serif;font-size:40px;color:var(--primary-dark);letter-spacing:.5px;text-shadow:0 4px 18px rgba(22,138,91,.18)}
.logo-sub{font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);padding-right:4px}
.main-nav{display:flex;gap:24px;margin-right:auto}
.main-nav a{font-weight:700;color:#244437;position:relative}
.main-nav a::after{content:'';position:absolute;right:0;bottom:-6px;width:0;height:2px;background:var(--primary);transition:.25s}
.main-nav a:hover::after{width:100%}
.nav-actions{display:flex;gap:12px}
.menu-toggle{display:none;border:1px solid var(--border);background:#fff;border-radius:14px;padding:10px 14px;font-size:22px}

/* buttons */
.btn{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:white;border:none;border-radius:999px;padding:13px 22px;font-weight:800;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 10px 30px rgba(22,138,91,.18);transition:.25s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:var(--primary-light);color:var(--primary-dark);box-shadow:none}
.btn.full{width:100%}

/* hero */
.hero{position:relative;overflow:hidden;padding:88px 0 72px;background:radial-gradient(circle at top right,#effff4 0,#f8fffb 34%,#ffffff 70%)}
.hero-glow{position:absolute;border-radius:50%;filter:blur(12px);pointer-events:none}
.glow-1{width:340px;height:340px;background:rgba(95,255,181,.18);top:-120px;right:-70px}
.glow-2{width:280px;height:280px;background:rgba(20,138,91,.09);left:8%;bottom:-100px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-family:'Changa',sans-serif;font-size:60px;line-height:1.15;margin:14px 0 16px}
.hero-brand{display:inline-block;color:var(--primary-dark);font-family:'Aref Ruqaa Ink',serif;font-size:1.12em;position:relative}
.hero-brand::after{content:'';position:absolute;right:8px;bottom:10px;width:88%;height:14px;background:rgba(95,255,181,.22);z-index:-1;border-radius:10px}
.hero-copy p{font-size:19px;line-height:1.95;color:var(--muted);max-width:650px}
.hero-badge,.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);color:var(--primary-dark);padding:10px 16px;border-radius:999px;font-size:14px;font-weight:800}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;max-width:520px}
.hero-stats div{background:white;border:1px solid var(--border);border-radius:20px;padding:16px 18px;box-shadow:var(--shadow)}
.hero-stats strong{display:block;font-size:28px;font-family:'Changa',sans-serif;color:var(--primary-dark)}
.hero-stats span{color:var(--muted);font-weight:700}
.hero-showcase{position:relative;min-height:430px}
.floating-card{position:absolute;background:white;border:1px solid rgba(220,233,225,.95);border-radius:26px;box-shadow:var(--shadow)}
.floating-card.large{inset:45px 10px 35px 40px;padding:28px;background:linear-gradient(160deg,#fff,#effbf4)}
.floating-card.large h3{font-family:'Changa',sans-serif;font-size:28px;margin:12px 0 10px}.floating-card.large p{color:var(--muted);line-height:1.9}
.floating-card.large small{color:var(--primary);font-weight:800}
.floating-card.small{display:flex;gap:14px;align-items:flex-start;padding:18px 16px;width:290px;background:rgba(255,255,255,.96)}
.floating-card.small.top{top:0;right:0;animation:floatY 4.5s ease-in-out infinite}
.floating-card.small.bottom{left:0;bottom:0;animation:floatY 5.5s ease-in-out infinite 1s}
.icon-badge{width:42px;height:42px;border-radius:14px;background:var(--primary-light);display:grid;place-items:center;color:var(--primary-dark);font-weight:800;flex-shrink:0}
.mini-progress{height:10px;border-radius:999px;background:#dff0e7;overflow:hidden;margin-top:22px}.mini-progress span{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--primary),#6de2ab);border-radius:999px}

/* sections */
.section{padding:88px 0}
.soft{background:var(--surface-alt)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:34px}
.section-head h2{font-family:'Changa',sans-serif;font-size:38px;line-height:1.25;margin:10px 0 0}
.section-head p{color:var(--muted);max-width:460px;line-height:1.8;font-weight:500}
.section-head.center{text-align:center;display:block}

/* stages */
.stage-layout{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px}
.stage-card{background:white;border:1px solid var(--border);border-radius:26px;padding:24px;box-shadow:var(--shadow);transition:.25s;position:relative;overflow:hidden}
.stage-card:hover,.premium-card:hover,.feature-box:hover,.teacher-card:hover{transform:translateY(-4px)}
.stage-card::before{content:'';position:absolute;inset:auto auto 0 0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),#7be8b7);opacity:.9}
.featured-stage{grid-row:span 2;background:linear-gradient(160deg,#0c4b33,#168a5b);color:white;border:none}
.featured-stage p,.featured-stage .stage-meta span{color:#e7fff3}
.stage-number{font-family:'Changa',sans-serif;font-size:15px;color:var(--primary);background:var(--primary-light);display:inline-flex;padding:8px 12px;border-radius:999px;font-weight:800;margin-bottom:16px}
.featured-stage .stage-number{background:rgba(255,255,255,.18);color:white}
.stage-chip{display:inline-block;background:rgba(255,255,255,.15);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:800;margin-bottom:14px}
.stage-card h3{font-family:'Changa',sans-serif;font-size:28px;margin:0 0 10px}
.stage-card p{margin:0;color:var(--muted);line-height:1.85}
.stage-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.stage-meta span{background:#f1f8f4;border:1px solid var(--border);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700;color:#24533d}
.featured-stage .stage-meta span{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.15);color:white}

/* teachers marquee */
.teacher-section{overflow:hidden}
.teacher-marquee{position:relative;overflow:hidden;mask-image:linear-gradient(to left,transparent,black 10%,black 90%,transparent);-webkit-mask-image:linear-gradient(to left,transparent,black 10%,black 90%,transparent)}
.teacher-track{display:flex;gap:18px;width:max-content;animation:marquee 32s linear infinite;padding:8px 16px}
.teacher-marquee:hover .teacher-track{animation-play-state:paused}
.teacher-card{min-width:250px;background:white;border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:var(--shadow);text-align:center}
.avatar{width:76px;height:76px;border-radius:24px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary-light),#d5f8e7);margin:0 auto 14px;font-family:'Changa',sans-serif;font-size:34px;color:var(--primary-dark);font-weight:800}
.teacher-card h3{font-family:'Changa',sans-serif;margin:0 0 6px;font-size:22px}
.teacher-card p{margin:0 0 6px;color:var(--muted);font-weight:700}.teacher-card span{color:var(--primary-dark);font-weight:800}

/* course section */
.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter-btn{border:1px solid var(--border);background:white;border-radius:999px;padding:12px 18px;font-weight:800;color:#264736;cursor:pointer;transition:.2s}
.filter-btn.active,.filter-btn:hover{background:var(--primary-dark);color:white;border-color:var(--primary-dark)}
.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.premium-card{background:white;border:1px solid var(--border);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.course-cover{aspect-ratio:16/9;height:auto;position:relative;padding:20px;display:flex;align-items:end;justify-content:space-between;color:white}
.course-cover::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.45),transparent 60%)}
.course-cover.chemistry{background:linear-gradient(135deg,#0d6e4d,#29b773)}
.course-cover.math{background:linear-gradient(135deg,#11513c,#1ea884)}
.course-cover.english{background:linear-gradient(135deg,#0b3e2b,#27a56f)}
.course-cover.physics{background:linear-gradient(135deg,#0c5e41,#1fb480)}
.course-badge{position:absolute;top:18px;right:18px;background:#ffffff1f;border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(6px);padding:8px 12px;border-radius:999px;font-weight:800;z-index:1}
.course-badge.paid{background:#0b2a1d55}
.course-overlay-title{position:relative;z-index:1;font-family:'Changa',sans-serif;font-size:34px;font-weight:800}
.course-body{padding:22px}
.course-topline{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-weight:800;font-size:14px}
.course-body h3{font-family:'Changa',sans-serif;font-size:26px;line-height:1.4;margin:12px 0 10px}
.course-body p{margin:0;color:var(--muted);line-height:1.85}
.course-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:18px}.course-footer strong{color:var(--primary-dark);font-size:18px}

/* features */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-box{background:white;border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:var(--shadow)}
.feature-box span{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:var(--primary-light);color:var(--primary-dark);font-weight:800;font-size:20px;margin-bottom:18px}
.feature-box h3{font-family:'Changa',sans-serif;font-size:24px;margin:0 0 10px}.feature-box p{margin:0;color:var(--muted);line-height:1.8}

/* footer */
.site-footer{background:#0f241b;color:#f1fff7;padding-top:50px}
.footer-content{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:24px;padding-bottom:28px}
.footer-content h4{font-family:'Changa',sans-serif;margin:4px 0 14px}.footer-content a{display:block;margin:8px 0;color:#d8f6e5}.footer-content p{color:#cae8d7;line-height:1.9}.footer-logo .logo-calligraphy{color:#fff}.footer-logo .logo-sub{color:#cce7d7}
.copyright{text-align:center;border-top:1px solid rgba(255,255,255,.08);padding:18px 12px;color:#b9d6c6}

/* modal */
.modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);place-items:center;padding:20px;z-index:99}
.modal.show{display:grid}.modal-box{position:relative;background:white;border-radius:24px;padding:32px;max-width:430px;width:100%;text-align:center;box-shadow:0 30px 70px rgba(0,0,0,.15)}
.close-btn{position:absolute;left:14px;top:12px;background:none;border:none;font-size:28px;cursor:pointer}
.modal-box h3{font-family:'Changa',sans-serif;font-size:28px;margin:6px 0 12px}.modal-box p{color:var(--muted);line-height:1.9;margin:0 0 18px}

/* auth pages */
.auth{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top right,#effff4,#f6fbf8 45%,#eef6f1 100%);padding:20px}
.form{width:min(560px,100%);background:white;border:1px solid var(--border);padding:28px;border-radius:28px;box-shadow:var(--shadow)}
.form h1{font-family:'Changa',sans-serif;font-size:34px;margin:14px 0 8px}.form p{color:var(--muted)}
.form label{display:block;font-weight:800;margin:14px 0 0}
.form input,.form select{width:100%;border:1px solid var(--border);border-radius:16px;padding:14px 16px;margin-top:8px;background:#fbfffc;color:var(--text);outline:none;transition:.2s}
.form input:focus,.form select:focus{border-color:#7bd7ab;box-shadow:0 0 0 4px rgba(22,138,91,.08)}
.hidden{display:none!important}
.error,.success{padding:12px 14px;border-radius:14px;margin-top:14px;font-weight:700}
.error{background:#fdeaea;color:#9f2929}.success{background:var(--primary-light);color:var(--primary-dark)}

/* utility */
.fade-out{opacity:.18;transform:scale(.985);transition:.25s}
.hidden-card{display:none!important}

/* animations */
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(50%)}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* responsive */
@media (max-width:1080px){
  .hero-grid,.course-grid,.features-grid,.footer-content{grid-template-columns:1fr 1fr}
  .stage-layout{grid-template-columns:1fr 1fr}
  .featured-stage{grid-column:span 2;grid-row:auto}
}
@media (max-width:860px){
  .main-nav{display:none;position:absolute;top:82px;right:16px;left:16px;background:white;border:1px solid var(--border);border-radius:20px;padding:14px;box-shadow:var(--shadow);flex-direction:column}
  .main-nav.open{display:flex}
  .nav-actions{display:none}
  .menu-toggle{display:block;margin-right:auto}
  .hero{padding-top:52px}.hero-grid{grid-template-columns:1fr}
  .hero-copy h1{font-size:44px}
  .hero-showcase{min-height:340px}
  .floating-card.large{inset:50px 8px 28px 16px}.floating-card.small{width:250px}
  .section-head{display:block}.section-head p{max-width:none;margin-top:12px}
  .course-grid,.features-grid,.footer-content,.stage-layout{grid-template-columns:1fr}
  .featured-stage{grid-column:auto}
}
@media (max-width:560px){
  .wrap{width:min(100% - 22px,1180px)}
  .logo-calligraphy{font-size:34px}
  .hero-copy h1{font-size:36px}
  .hero-copy p{font-size:17px}
  .hero-stats{grid-template-columns:1fr}
  .floating-card.small{position:relative;width:100%;top:auto;left:auto;right:auto;bottom:auto;margin-top:14px}
  .hero-showcase{min-height:auto}
  .floating-card.large{position:relative;inset:auto;padding:22px;margin-top:18px}
  .teacher-card{min-width:210px}
  .course-footer{flex-direction:column;align-items:flex-start}
}

.hero-image-wrap{position:relative;min-height:520px;display:flex;align-items:flex-end;justify-content:center}.hero-main-image{width:min(100%,560px);height:auto;object-fit:contain;filter:drop-shadow(0 28px 45px rgba(14,95,64,.18))}.hero-floating-note{position:absolute;background:rgba(255,255,255,.95);border:1px solid var(--border);border-radius:18px;padding:13px 16px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;font-weight:800;color:var(--primary-dark)}.hero-floating-note span{width:34px;height:34px;border-radius:12px;background:var(--primary-light);display:grid;place-items:center}.note-one{top:80px;right:10px;animation:floatY 4.8s ease-in-out infinite}.note-two{bottom:70px;left:0;animation:floatY 5.4s ease-in-out infinite 1s}
.stages-strip-section{padding:30px 0;background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.compact-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.compact-head h2{font-family:'Changa',sans-serif;font-size:28px;margin:7px 0 0}.stages-strip{display:flex;gap:12px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin}.stage-pill{min-width:max-content;display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:13px 18px;box-shadow:0 8px 22px rgba(14,95,64,.06);transition:.25s}.stage-pill span{width:34px;height:34px;border-radius:12px;background:var(--primary-light);display:grid;place-items:center;color:var(--primary-dark);font-weight:800;font-size:13px}.stage-pill strong{font-family:'Changa',sans-serif;font-size:17px}.stage-pill:hover,.stage-pill.active{background:var(--primary-dark);color:#fff;border-color:var(--primary-dark);transform:translateY(-2px)}.stage-pill:hover span,.stage-pill.active span{background:rgba(255,255,255,.16);color:#fff}
.teacher-card{padding:0;overflow:hidden;text-align:right}.teacher-photo{width:100%;height:220px;object-fit:cover;display:block;background:var(--primary-light)}.teacher-info{padding:18px 20px 20px}.teacher-info h3{margin:0 0 5px}.teacher-info p{margin:0;color:var(--muted);font-weight:700}.teacher-card span{display:none!important}.hero-stats{display:none!important}
@media(max-width:860px){.hero-image-wrap{min-height:420px}.hero-main-image{width:min(100%,480px)}}@media(max-width:560px){.hero-image-wrap{min-height:350px}.hero-floating-note{font-size:13px;padding:10px 12px}.note-one{top:35px;right:0}.note-two{bottom:20px;left:0}.stages-strip-section{padding:24px 0}}

/* YouTube thumbnail ratio and interactive teacher profiles */
.course-cover{width:100%;min-height:0}
.stage-pill{font-family:inherit;cursor:pointer}
.teacher-card{color:inherit;text-decoration:none;display:block}
.teacher-info .profile-link{display:block!important;margin-top:12px;color:var(--primary-dark);font-size:14px;font-weight:800}
.teacher-card:hover .profile-link{transform:translateX(-4px)}
.teacher-track:empty::after{content:'لا يوجد مدرسون في هذه المرحلة حاليًا';display:block;padding:24px;color:var(--muted)}
.profile-page{background:var(--surface-alt)}
.profile-hero{padding:70px 0;background:radial-gradient(circle at top right,#effff4,#fff 65%)}
.profile-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px;align-items:center}
.profile-image-card{background:white;border:1px solid var(--border);border-radius:32px;padding:14px;box-shadow:var(--shadow)}
.profile-image-card img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:24px}
.profile-copy h1{font-family:'Changa',sans-serif;font-size:52px;margin:14px 0 4px}
.profile-subject{font-family:'Changa',sans-serif;color:var(--primary);font-size:25px!important;font-weight:800}
.profile-copy>p{color:var(--muted);font-size:18px;line-height:1.9;max-width:650px}
.profile-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.empty-state{background:white;border:1px solid var(--border);border-radius:24px;padding:38px;text-align:center;box-shadow:var(--shadow)}
.empty-state h3{font-family:'Changa',sans-serif;font-size:26px;margin:0 0 8px}.empty-state p{color:var(--muted)}
@media(max-width:860px){.profile-grid{grid-template-columns:1fr}.profile-image-card{max-width:440px;margin:auto}.profile-copy h1{font-size:40px}}

/* account registration roles */
.registration-form{width:min(760px,100%)}
.form-intro{margin-top:-4px}
.account-type-group{border:0;padding:0;margin:22px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.account-type-group legend{font-weight:800;margin-bottom:10px}
.account-type-card{margin:0!important;display:flex!important;align-items:center;gap:12px;border:1px solid var(--border);border-radius:18px;padding:15px;background:#fbfffc;cursor:pointer;transition:.22s}
.account-type-card input{position:absolute;opacity:0;pointer-events:none}
.account-type-card.active{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 3px rgba(22,138,91,.08)}
.account-type-card>span:last-child{display:flex;flex-direction:column;gap:2px}
.account-type-card strong{color:var(--primary-dark)}
.account-type-card small{color:var(--muted);font-weight:600;line-height:1.5}
.account-icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:white;color:var(--primary-dark);font-family:'Changa',sans-serif;font-weight:800;flex-shrink:0}
.form-grid{display:grid;gap:14px}.two-columns{grid-template-columns:1fr 1fr}
.role-fields{margin-top:8px;padding-top:4px}
.form textarea{width:100%;border:1px solid var(--border);border-radius:16px;padding:14px 16px;margin-top:8px;background:#fbfffc;resize:vertical;outline:none}
.form textarea:focus{border-color:#7bd7ab;box-shadow:0 0 0 4px rgba(22,138,91,.08)}
.approval-note{background:#eef8f2;border:1px solid #d4eadc;color:#24533d;padding:13px 15px;border-radius:15px;line-height:1.8;font-weight:700;margin:14px 0 4px}
@media(max-width:700px){.account-type-group,.two-columns{grid-template-columns:1fr}}

/* Auth-aware public navbar */
.home-profile-chip{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 10px 6px 14px;box-shadow:0 8px 24px rgba(14,95,64,.08);min-width:max-content}
.home-profile-avatar{width:39px;height:39px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-weight:800;font-size:17px}
.home-profile-copy{display:flex;flex-direction:column;line-height:1.25;text-align:right}
.home-profile-copy strong{font-size:14px;color:var(--text)}
.home-profile-copy small{font-size:11px;color:var(--muted);margin-top:3px}
.home-logout-btn{border:0;background:transparent;color:var(--primary-dark);font-weight:800;cursor:pointer;padding:10px 8px}
.home-logout-btn:hover{color:#b52d2d}
.nav-actions{align-items:center}
@media(max-width:860px){
  .nav-actions.authenticated{display:flex}
}

/* Live Firestore content states */
.course-grid-status{grid-column:1/-1}
.marquee-empty{min-width:min(620px,calc(100vw - 32px));margin-inline:16px}
.course-cover-image{position:relative;overflow:hidden}
.course-cover-image img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.course-cover-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,25,17,.04),rgba(5,25,17,.72))}
.course-cover-image>*{position:relative;z-index:1}