.lessons-page{width:100%;padding:0 0 70px}
.lessons-hero{position:relative;width:100%;min-height:390px;margin:0 0 40px;padding:70px max(30px,calc((100% - 1100px)/2));box-sizing:border-box;display:flex;align-items:center;overflow:hidden;background:radial-gradient(circle at 80% 45%,rgba(138,123,182,.28),transparent 32%),linear-gradient(120deg,#09070d 0%,#15101e 52%,#21172e 100%);border-bottom:1px solid rgba(138,123,182,.25);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.lessons-hero:before{content:"";position:absolute;right:-120px;top:-230px;width:620px;height:620px;border:1px solid rgba(180,160,220,.14);border-radius:50%;box-shadow:0 0 0 45px rgba(138,123,182,.035),0 0 0 100px rgba(138,123,182,.025),0 0 100px rgba(138,123,182,.12)}
.lessons-hero:after{content:"";position:absolute;right:150px;bottom:-250px;width:420px;height:420px;border:1px solid rgba(180,160,220,.1);border-radius:50%}
.lessons-hero-content{position:relative;z-index:2;width:100%;max-width:1100px;margin:0 auto;text-align:center}
.lessons-hero-label{display:inline-flex;margin-bottom:22px;padding:9px 15px;border:1px solid rgba(180,160,220,.28);border-radius:30px;background:rgba(138,123,182,.08);color:#b9a7d9;font-size:12px;font-weight:800;letter-spacing:3px;box-shadow:0 0 25px rgba(138,123,182,.08)}
.lessons-hero h1{margin:0 0 18px;color:#fff;font-size:clamp(52px,8vw,86px);font-weight:800;line-height:.95;letter-spacing:-3px;text-shadow:0 0 40px rgba(138,123,182,.2)}
.lessons-hero p{max-width:650px;margin:0 auto;color:#b8afc5;font-size:19px;line-height:1.65}
.lessons-hero-decoration{position:absolute;right:13%;top:50%;z-index:1;width:210px;height:210px;border:1px solid rgba(180,160,220,.22);border-radius:50%;transform:translateY(-50%);box-shadow:0 0 50px rgba(138,123,182,.12),inset 0 0 50px rgba(138,123,182,.08)}
.lessons-hero-decoration:before{content:"";position:absolute;left:50%;top:50%;width:90px;height:90px;border:1px solid rgba(180,160,220,.3);border-radius:50%;transform:translate(-50%,-50%);box-shadow:0 0 35px rgba(138,123,182,.18)}
.lessons-hero-decoration:after{content:"";position:absolute;left:50%;top:50%;width:12px;height:12px;border-radius:50%;background:#a990d2;box-shadow:0 0 25px #a990d2;transform:translate(-50%,-50%)}
.lessons-progress{width:min(1100px,calc(100% - 40px));margin:0 auto 35px;padding:28px 32px;box-sizing:border-box;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(20px)}
.lessons-progress-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:16px}
.lessons-progress-label{display:block;margin-bottom:6px;color:var(--text-secondary);font-size:13px}
.lessons-progress-top strong{color:var(--text);font-size:20px}
#progressPercent{color:var(--light-purple);font-size:26px;font-weight:800}
.lessons-progress-bar{height:11px;overflow:hidden;background:rgba(138,123,182,.12);border-radius:20px}
#progressBar{display:block;width:0;height:100%;background:linear-gradient(90deg,#765da8,#aa8bd4);border-radius:20px;box-shadow:0 0 15px rgba(138,123,182,.35);transition:width .5s ease}
.lessons-status{display:flex;flex-wrap:wrap;gap:22px;margin-top:15px}
.lessons-status span{display:flex;align-items:center;gap:7px;color:var(--text-secondary);font-size:13px}
.status-dot{width:8px;height:8px;border-radius:50%;background:rgba(150,145,160,.35)}
.status-dot.completed{background:#72d193;box-shadow:0 0 9px rgba(114,209,147,.45)}
.status-dot.started{background:#8a7bb6;box-shadow:0 0 9px rgba(138,123,182,.45)}
.lessons-list{width:min(1100px,calc(100% - 40px));margin:0 auto;display:flex;flex-direction:column;gap:16px}
.lesson-card{position:relative;display:flex;align-items:center;min-height:135px;padding:30px 34px;gap:28px;box-sizing:border-box;overflow:hidden;background:var(--surface);border:1px solid var(--border);border-radius:20px;color:var(--text);text-decoration:none;box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease}
.lesson-card:before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:linear-gradient(180deg,#806bb1,#b69be5);opacity:.35;transition:opacity .25s ease}
.lesson-card:hover{transform:translateY(-4px);border-color:rgba(138,123,182,.55);background:rgba(138,123,182,.08);box-shadow:0 16px 45px rgba(0,0,0,.28),0 0 25px rgba(138,123,182,.07)}
.lesson-card:hover:before{opacity:1}
.lesson-number{display:flex;align-items:center;justify-content:center;flex:0 0 66px;width:66px;height:66px;border-radius:17px;background:rgba(138,123,182,.12);border:1px solid rgba(138,123,182,.2);color:var(--light-purple);font-size:16px;font-weight:800}
.lesson-info{display:flex;flex-direction:column;flex:1;min-width:0;gap:8px}
.lesson-info strong{color:var(--text);font-size:21px;line-height:1.3}
.lesson-info small{color:var(--text-secondary);font-size:14px;line-height:1.5}
.lesson-status{width:10px;height:10px;flex:0 0 10px;border-radius:50%;background:rgba(150,145,160,.25)}
.lesson-status.started{background:#8a7bb6;box-shadow:0 0 10px rgba(138,123,182,.5)}
.lesson-status.completed{background:#72d193;box-shadow:0 0 10px rgba(114,209,147,.5)}
.lesson-arrow{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border:1px solid rgba(138,123,182,.18);border-radius:13px;background:rgba(138,123,182,.08);color:var(--light-purple);font-size:25px;transition:transform .25s ease,background .25s ease,border-color .25s ease}
.lesson-card:hover .lesson-arrow{transform:translateX(5px);background:rgba(138,123,182,.16);border-color:rgba(138,123,182,.35)}
.light-theme .lessons-hero{background:radial-gradient(circle at 80% 45%,rgba(138,123,182,.2),transparent 32%),linear-gradient(120deg,#f7f4fc 0%,#eee8f8 52%,#e4daf2 100%);border-bottom-color:rgba(138,123,182,.2);box-shadow:0 20px 60px rgba(90,65,130,.12)}
.light-theme .lessons-hero:before{border-color:rgba(100,80,140,.13);box-shadow:0 0 0 45px rgba(138,123,182,.035),0 0 0 100px rgba(138,123,182,.025),0 0 100px rgba(138,123,182,.1)}
.light-theme .lessons-hero:after{border-color:rgba(100,80,140,.1)}
.light-theme .lessons-hero-label{background:rgba(138,123,182,.07);border-color:rgba(138,123,182,.25);color:#75629f}
.light-theme .lessons-hero h1{color:#30263f;text-shadow:0 0 35px rgba(138,123,182,.12)}
.light-theme .lessons-hero p{color:#665e70}
.light-theme .lessons-hero-decoration{border-color:rgba(100,80,140,.2);box-shadow:0 0 50px rgba(138,123,182,.1),inset 0 0 50px rgba(138,123,182,.06)}
.light-theme .lessons-hero-decoration:before{border-color:rgba(100,80,140,.25)}
.light-theme .lessons-hero-decoration:after{background:#806bb1;box-shadow:0 0 25px rgba(128,107,177,.55)}
.light-theme .lesson-card:hover{background:rgba(138,123,182,.05);box-shadow:0 16px 40px rgba(90,65,130,.13),0 0 25px rgba(138,123,182,.06)}
.lessons-login-notice,.exams-login-notice{display:none;margin-top:18px;padding:13px 16px;border:1px solid rgba(229,185,77,.3);border-radius:12px;background:rgba(229,185,77,.07);color:#e5c66c;font-size:13px;text-align:center}
body.light-theme .lessons-login-notice,body.light-theme .exams-login-notice{border-color:rgba(154,123,33,.25);background:rgba(229,185,77,.08);color:#9a7b21}
@media(max-width:700px){
.lessons-page{padding:0 0 45px}
.lessons-hero{min-height:330px;padding:50px 25px;margin-bottom:30px}
.lessons-hero-content{max-width:100%}
.lessons-hero h1{font-size:56px}
.lessons-hero p{font-size:16px}
.lessons-hero-decoration{right:-80px;width:220px;height:220px;opacity:.7}
.lessons-progress{width:calc(100% - 28px);padding:23px}
.lessons-list{width:calc(100% - 28px)}
.lesson-card{min-height:115px;padding:24px 20px;gap:18px}
.lesson-number{flex:0 0 54px;width:54px;height:54px}
.lesson-info strong{font-size:18px}
.lesson-info small{font-size:13px}
}
@media(max-width:480px){
.lessons-hero{min-height:300px;padding:40px 20px}
.lessons-hero h1{font-size:46px;letter-spacing:-2px}
.lessons-hero p{font-size:15px}
.lessons-hero-decoration{right:-105px}
.lessons-progress-top{align-items:flex-end}
#progressPercent{font-size:21px}
.lesson-card{min-height:105px;padding:20px 16px}
.lesson-number{display:none}
.lesson-info strong{font-size:17px}
.lesson-arrow{width:38px;height:38px;font-size:21px}
}