:root{
  --primary:#1463ff;--primary-2:#38a8ff;--text:#07142e;--muted:#667085;
  --bg:#f8fbff;--card:#fff;--line:#e5edf8;--shadow:0 18px 50px rgba(19,72,145,.10);
  --radius:24px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Tahoma,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.8}
a{text-decoration:none;color:inherit}
button{font:inherit}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(221,231,244,.8)}
.nav-wrap{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand-mark{width:45px;height:45px;border-radius:14px;background:linear-gradient(135deg,#087bff,#8d5cff);color:#fff;display:grid;place-items:center;font-weight:900;font-size:19px;box-shadow:0 8px 22px rgba(20,99,255,.25)}
.brand strong{display:block;font-size:16px}.brand small{display:block;color:var(--muted);font-size:11px}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:700}
.nav-links a{position:relative;padding:28px 0;color:#26334a}.nav-links a.active,.nav-links a:hover{color:var(--primary)}
.nav-links a.active:after{content:"";position:absolute;bottom:0;right:0;left:0;height:3px;border-radius:5px;background:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px}.icon-btn,.menu-btn{border:1px solid var(--line);background:#fff;width:42px;height:42px;border-radius:50%;cursor:pointer;color:var(--text)}
.menu-btn{display:none;border-radius:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:14px;padding:13px 22px;font-weight:800;transition:.25s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),#258bff);box-shadow:0 12px 28px rgba(20,99,255,.22)}
.btn-outline{background:#fff;border:1px solid #cdd9ea}.btn-white{background:#fff;color:var(--primary);box-shadow:0 10px 25px rgba(0,0,0,.12)}.btn-small{padding:10px 17px}
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f5faff,#fff);padding:70px 0 35px;min-height:600px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:35px;direction:ltr}
.hero-copy{direction:rtl;position:relative;z-index:2}.eyebrow{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:#eef5ff;color:var(--primary);font-weight:800;font-size:13px}
.hero h1{font-size:clamp(40px,5vw,66px);line-height:1.15;margin:20px 0 18px;letter-spacing:-1.8px}.hero h1 span{color:var(--primary)}
.hero p{max-width:650px;color:var(--muted);font-size:17px}.hero-buttons{display:flex;gap:12px;margin-top:28px}.feature-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.feature-row span{background:#fff;border:1px solid var(--line);padding:8px 13px;border-radius:12px;color:#3c4b61;font-size:13px;box-shadow:0 7px 20px rgba(0,0,0,.04)}
.hero-visual{direction:rtl;position:relative;min-height:500px;display:grid;place-items:end center}.teacher-hero{position:relative;z-index:3;width:min(590px,100%);max-height:540px;object-fit:cover;object-position:center top;border-radius:30px;mix-blend-mode:multiply;filter:saturate(1.02);box-shadow:0 30px 70px rgba(19,72,145,.14)}
.portrait-ring{position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,#d8ecff,#eef7ff 62%,transparent 63%);right:8%;top:6%;z-index:1}.orb{position:absolute;border-radius:50%;filter:blur(1px)}.orb-a{width:90px;height:90px;background:#2f8cff;right:0;top:18%;opacity:.18}.orb-b{width:55px;height:55px;background:#9a65ff;left:10%;bottom:20%;opacity:.17}
.code-float{position:absolute;z-index:4;left:3%;top:14%;background:#07172e;color:#75c8ff;border:1px solid #3b9bff;border-radius:15px;padding:15px 18px;font-family:monospace;font-size:13px;line-height:1.6;box-shadow:0 20px 35px rgba(0,38,92,.22)}.code-float i{color:#b6ffcc}.ai-bubble,.code-bubble{position:absolute;z-index:5;width:58px;height:58px;border-radius:18px;display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 25px rgba(20,99,255,.22)}.ai-bubble{background:#12cbd7;right:4%;top:6%}.code-bubble{background:#246fff;left:10%;top:45%}
.section{padding:82px 0}.section-heading{text-align:center;margin-bottom:35px}.section-heading h2{font-size:36px;margin:7px 0}.heading-line{width:70px;height:4px;background:linear-gradient(90deg,var(--primary),#53c7ff);border-radius:10px;margin:auto}
.course-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.course-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:12px 12px 18px;box-shadow:var(--shadow);overflow:hidden;transition:.25s}.course-card:hover{transform:translateY(-7px)}.course-image{height:160px;border-radius:15px;display:grid;place-items:center;position:relative;overflow:hidden}.visual-code{background:linear-gradient(135deg,#fff3e8,#ffd5a8);font-size:55px;color:#e97908}.visual-ai{background:radial-gradient(circle,#2e90ff,#071e54);font-size:43px;color:#fff}.visual-bac{background:linear-gradient(135deg,#e9f5ff,#a8d5ff);font-size:48px;color:#1974ff}.visual-bac b,.visual-books b{font-size:18px;position:absolute;bottom:25px}.visual-books{background:linear-gradient(135deg,#f1eaff,#c7b2ff);font-size:48px;color:#7b3fff}.visual-exam{background:linear-gradient(135deg,#eafff1,#a9f0c2);font-size:70px;color:#15a84c}.card-icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;margin:-22px auto 5px;position:relative;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.12);font-weight:900}.course-card h3{text-align:center;font-size:18px}.course-card p{font-size:12px;color:var(--muted);text-align:center;min-height:63px;margin:4px 0 8px}.course-card a{display:block;text-align:center;font-weight:800;font-size:13px;padding-top:9px;border-top:1px solid var(--line)}
.accent-orange .card-icon,.accent-orange a{color:#ef8a10}.accent-cyan .card-icon,.accent-cyan a{color:#08aeb9}.accent-blue .card-icon,.accent-blue a{color:#1974ff}.accent-purple .card-icon,.accent-purple a{color:#7b3fff}.accent-green .card-icon,.accent-green a{color:#15a84c}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:30px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:20px}.stats div{text-align:center;border-left:1px solid var(--line)}.stats div:last-child{border-left:0}.stats strong{display:block;color:var(--primary);font-size:30px}.stats span{font-size:13px;color:var(--muted)}
.about{background:#fff}.about-grid{display:grid;grid-template-columns:1fr .9fr 1fr;align-items:center;gap:28px;background:linear-gradient(135deg,#f5faff,#fff);border:1px solid var(--line);border-radius:28px;padding:30px;overflow:hidden}.point{display:flex;gap:13px;margin:18px 0}.point>span{flex:0 0 46px;height:46px;border-radius:14px;background:#edf5ff;color:var(--primary);display:grid;place-items:center;font-size:22px}.point h3{font-size:17px}.point p,.about-copy p{color:var(--muted);font-size:13px}.about-photo{position:relative;text-align:center;min-height:370px}.about-photo img{height:390px;max-width:100%;position:relative;z-index:2;object-fit:cover;border-radius:24px;mix-blend-mode:multiply}.about-glow{position:absolute;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,#cce7ff,transparent 68%);left:50%;top:20px;transform:translateX(-50%)}.about-copy h3{font-size:28px;color:var(--primary)}.about-copy h4{color:#2f8cff;margin:2px 0 13px}.signature{font-family:cursive;color:#287bff;font-size:27px;margin:15px 0}
.testimonials{background:#f5f9ff}.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.testimonial{background:#fff;border:1px solid var(--line);border-radius:20px;padding:25px;box-shadow:var(--shadow)}.stars{color:#ffb000;letter-spacing:3px}.testimonial p{color:#556276;margin:10px 0}.testimonial strong,.testimonial span{display:block}.testimonial span{font-size:12px;color:#8a94a6}
.contact-box{background:linear-gradient(135deg,#0869ff,#38a9ff);color:#fff;border-radius:28px;padding:35px 45px;display:flex;align-items:center;justify-content:space-between;gap:20px;box-shadow:0 25px 50px rgba(20,99,255,.2)}.contact-box .eyebrow{background:rgba(255,255,255,.14);color:#fff}.contact-box h2{font-size:30px}.contact-box p{opacity:.9}
.footer{background:#06152d;color:#dbe8ff;padding-top:45px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;align-items:center;gap:30px;padding-bottom:30px}.footer p{color:#8ea4c3}.footer-links{display:flex;gap:20px;flex-wrap:wrap;font-size:13px}.footer-links a:hover{color:#55baff}.socials{display:flex;justify-content:flex-end;gap:10px}.socials a{width:40px;height:40px;border-radius:50%;background:#102a4e;display:grid;place-items:center}.copyright{text-align:center;border-top:1px solid #183150;padding:18px;color:#7f95b5;font-size:12px}
.back-top{position:fixed;left:20px;bottom:20px;width:45px;height:45px;border:0;border-radius:50%;background:var(--primary);color:#fff;font-size:22px;display:none;z-index:30;cursor:pointer}
body.dark{--bg:#071225;--card:#0d1b31;--text:#f4f8ff;--muted:#9eb0c8;--line:#1d3454}body.dark .site-header{background:rgba(7,18,37,.9)}body.dark .nav-links a{color:#dce7f7}body.dark .icon-btn,body.dark .btn-outline{background:#0d1b31;color:#fff}body.dark .hero{background:linear-gradient(180deg,#08172c,#071225)}body.dark .about,body.dark .stats,body.dark .course-card,body.dark .testimonial{background:#0d1b31}