.lesson-page{
  background:
    linear-gradient(135deg, rgba(243,210,27,0.07), transparent 28%),
    radial-gradient(circle at 80% 8%, rgba(43,191,120,0.08), transparent 24%),
    radial-gradient(circle at 12% 24%, rgba(243,210,27,0.10), transparent 22%),
    #050505;
}

.lesson-page .navbar{
  position:sticky;
  top:14px;
  z-index:50;
  padding:14px 16px;
  margin-bottom:14px;
  border:1px solid rgba(243,210,27,0.14);
  border-radius:24px;
  background:rgba(7,7,7,0.78);
  backdrop-filter:blur(18px);
  box-shadow:0 18px 60px rgba(0,0,0,0.28);
}

.lesson-page .logo{
  letter-spacing:0;
}

.lesson-page .nav-links{
  gap:22px;
}

.lesson-page .lesson-layout{
  display:grid;
  grid-template-columns:400px 1fr;
  gap:26px;
  align-items:start;
}

.lesson-page .lesson-sidebar,
.lesson-page .lesson-main-card,
.lesson-page .section-card{
  border:1px solid rgba(243,210,27,0.16);
  border-radius:28px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.035), transparent 44%),
    linear-gradient(180deg, rgba(17,17,17,0.9), rgba(7,7,7,0.96));
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.025),
    0 22px 58px rgba(0,0,0,0.28);
}

.lesson-page .lesson-sidebar{
  padding:20px;
  position:sticky;
  top:110px;
  max-height:calc(100vh - 130px);
  overflow:hidden;
}

.lesson-page .lesson-scroll{
  height:calc(100vh - 250px);
  overflow-y:auto;
  padding-right:8px;
}

.lesson-page .lesson-scroll::-webkit-scrollbar{
  width:8px;
}

.lesson-page .lesson-scroll::-webkit-scrollbar-thumb{
  background:var(--gold);
  border-radius:999px;
}

.lesson-page .lesson-scroll::-webkit-scrollbar-track{
  background:rgba(255,255,255,0.06);
  border-radius:999px;
}

.lesson-page .lesson-subtitle{
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  border:1px solid rgba(243,210,27,0.18);
  border-radius:999px;
  background:rgba(243,210,27,0.065);
  color:var(--gold);
  font-size:13px;
  font-weight:850;
  margin-bottom:16px;
}

.lesson-page .progress-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-bottom:10px;
  color:#fff;
  font-size:14px;
  font-weight:900;
}

.lesson-page .progress-bar{
  width:100%;
  height:12px;
  margin-bottom:20px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:999px;
  background:rgba(255,255,255,0.035);
}

.lesson-page .progress-fill{
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg, var(--gold), #ffea61);
  box-shadow:0 0 20px rgba(243,210,27,0.25);
}

.lesson-page .module{
  display:block !important;
  height:auto !important;
  margin-bottom:14px;
  padding:15px;
  border:1px solid rgba(243,210,27,0.16);
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,0.032), rgba(255,255,255,0.015));
}

.lesson-page .module-header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
}

.lesson-page .module-title{
  max-width:235px;
  color:var(--gold);
  font-size:15px;
  font-weight:950;
  line-height:1.25;
}

.lesson-page .module-count{
  padding-top:2px;
  color:rgba(255,255,255,0.72);
  font-size:12px;
  font-weight:900;
  white-space:nowrap;
}

.lesson-page .lesson{
  display:flex;
  align-items:center;
  min-height:50px;
  margin-bottom:9px;
  padding:11px 13px;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:15px;
  background:rgba(255,255,255,0.025);
  color:#fff;
  text-decoration:none;
  font-size:13px;
  font-weight:850;
  line-height:1.3;
  letter-spacing:0;
  transition:0.22s ease;
}

.lesson-page .lesson:last-child{
  margin-bottom:0;
}

.lesson-page .lesson:hover,
.lesson-page .lesson.active{
  border-color:rgba(243,210,27,0.62);
  background:rgba(243,210,27,0.08);
  color:var(--gold);
  transform:translateY(-1px);
  box-shadow:0 0 18px rgba(243,210,27,0.08);
}

.lesson-page .lesson.is-completed::after{
  content:"✓";
  margin-left:auto;
  color:#22c55e;
  font-weight:950;
}

.lesson-page .lesson-complete-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  margin-top:18px;
  padding:16px;
  border:1px solid rgba(34,197,94,0.20);
  border-radius:18px;
  background:rgba(34,197,94,0.055);
}

.lesson-page .lesson-complete-panel strong{
  color:#fff;
  display:block;
  margin-bottom:4px;
}

.lesson-page .lesson-complete-panel span{
  color:rgba(255,255,255,0.64);
  font-size:13px;
}

.lesson-page .lesson-main{
  display:grid;
  gap:22px;
}

.lesson-page .lesson-main-card,
.lesson-page .section-card{
  padding:28px;
}

.lesson-page .button-row{
  justify-content:flex-end;
  margin-bottom:18px;
}

.lesson-page .badge{
  border-color:rgba(243,210,27,0.18);
  background:rgba(243,210,27,0.065);
  color:var(--gold);
  box-shadow:none;
}

.lesson-page .section-heading{
  font-size:clamp(34px, 4.4vw, 58px) !important;
  line-height:0.96;
  letter-spacing:0;
}

.lesson-page .section-subtext{
  max-width:920px;
  color:#e8e8e8;
  font-size:16px;
  line-height:1.7;
}

.lesson-page #lesson-video{
  scroll-margin-top:120px;
}

.lesson-page .lesson-video-wrap{
  max-width:none;
  margin:22px 0 0;
  overflow:hidden;
  border:1px solid rgba(243,210,27,0.13);
  border-radius:24px;
  background:#070707;
  box-shadow:0 20px 55px rgba(0,0,0,0.32);
}

.lesson-page .lesson-video-wrap iframe{
  width:100%;
  min-height:500px;
  border:none;
  display:block;
  background:#070707;
}

.lesson-page .video-placeholder{
  display:flex;
  min-height:500px;
  height:auto;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:30px;
  border:0;
  border-radius:0;
  background:
    radial-gradient(circle at top, rgba(243,210,27,0.11), transparent 62%),
    linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.014));
  color:rgba(255,255,255,0.80);
  text-align:center;
  font-size:18px;
  font-weight:850;
}

.lesson-page .video-placeholder .icon{
  font-size:40px;
  opacity:0.86;
}

.lesson-page .video-placeholder .sub{
  max-width:520px;
  color:rgba(255,255,255,0.58);
  font-size:14px;
  font-weight:750;
  line-height:1.55;
}

.lesson-page .grid-2{
  align-items:stretch;
}

.lesson-page .list-box{
  display:grid;
  gap:12px;
}

.lesson-page .list-item{
  border:1px solid rgba(243,210,27,0.13);
  border-radius:16px;
  background:rgba(255,255,255,0.025);
  color:#f4f4f4;
  padding:14px 16px;
  line-height:1.45;
  font-size:14px;
  font-weight:750;
}

.lesson-page .notes-box{
  width:100%;
  min-height:220px;
  padding:16px;
  resize:vertical;
  outline:none;
  border:1px solid rgba(243,210,27,0.14);
  border-radius:18px;
  background:rgba(255,255,255,0.025);
  color:#fff;
  font-size:15px;
  line-height:1.6;
}

.lesson-page .notes-box:focus{
  border-color:rgba(243,210,27,0.48);
  box-shadow:0 0 0 4px rgba(243,210,27,0.06);
}

.lesson-page .lesson-nav{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:18px;
}

.lesson-page .btn{
  min-height:46px;
  border-radius:999px;
}

.lesson-page .btn.primary{
  background:var(--gold);
  color:#111;
  box-shadow:0 0 24px rgba(243,210,27,0.16);
}

.lesson-page .btn.secondary{
  border-color:rgba(255,255,255,0.14);
  background:rgba(255,255,255,0.025);
  color:#fff;
}

.lesson-page .auth-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border:1px solid rgba(255,255,255,0.08);
  border-radius:999px;
  background:rgba(255,255,255,0.04);
  color:#fff;
  font-size:13px;
  font-weight:800;
  white-space:nowrap;
}

.lesson-page .auth-badge::before{
  content:"";
  width:10px;
  height:10px;
  border-radius:50%;
  background:#666;
}

.lesson-page .auth-badge.status-admin::before{
  background:#ffd700;
}

.lesson-page .auth-badge.status-premium::before{
  background:#22c55e;
}

.lesson-page .footer-note{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin:28px 0 10px;
  padding:22px 26px;
  border:1px solid rgba(243,210,27,0.14);
  border-radius:24px;
  background:rgba(255,255,255,0.025);
  color:#bdbdbd;
  text-align:left;
  font-size:14px;
  font-weight:800;
}

@media(max-width:1200px){
  .lesson-page .lesson-layout{
    grid-template-columns:1fr;
  }

  .lesson-page .lesson-sidebar{
    position:relative;
    top:0;
    max-height:none;
  }

  .lesson-page .lesson-scroll{
    height:auto;
    overflow:visible;
    padding-right:0;
  }
}

@media(max-width:760px){
  .lesson-page .navbar{
    top:8px;
  }

  .lesson-page .lesson-sidebar,
  .lesson-page .lesson-main-card,
  .lesson-page .section-card{
    padding:18px;
    border-radius:22px;
  }

  .lesson-page .lesson-video-wrap iframe,
  .lesson-page .video-placeholder{
    min-height:300px;
  }

  .lesson-page .module{
    padding:14px;
  }

  .lesson-page .lesson{
    min-height:48px;
    padding:11px 12px;
    font-size:13px;
  }

  .lesson-page .footer-note{
    align-items:flex-start;
    flex-direction:column;
  }
}