:root{
      --bg:#07111f;
      --bg-soft:#0c1728;
      --card:#0f1b2d;
      --card-2:#13233b;
      --line:rgba(255,255,255,.08);
      --text:#eaf2ff;
      --muted:#9fb0c9;
      --orange:#f97316;
      --orange-2:#fb923c;
      --orange-soft:rgba(249,115,22,.12);
      --success:#22c55e;
      --shadow:0 20px 60px rgba(0,0,0,.35);
      --radius:22px;
    }

    *{ box-sizing:border-box; }

    html{
      scroll-behavior:smooth;
    }

    body{
      margin:0;
      background:
        radial-gradient(circle at 12% 12%, rgba(249,115,22,.12), transparent 22%),
        radial-gradient(circle at 88% 10%, rgba(59,130,246,.10), transparent 20%),
        linear-gradient(180deg, #08111f 0%, #0a1322 40%, #0b1424 100%);
      color:var(--text);
      font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
    }

    a{
      text-decoration:none;
    }

    .section-space{
      padding: 84px 0;
    }

    .section-title{
      margin-bottom: 26px;
    }

    .section-title .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#ffd7bc;
      font-size:13px;
      font-weight:700;
      margin-bottom:14px;
    }

    .section-title h2{
      font-size: clamp(28px, 4vw, 42px);
      line-height:1.08;
      font-weight:800;
      margin:0 0 10px 0;
      letter-spacing:-0.02em;
      color:#fff;
    }

    .section-title p{
      margin:0;
      color:var(--muted);
      font-size:16px;
      max-width:760px;
    }

    /* HERO */
    .hero{
      position:relative;
      overflow:hidden;
      padding: 110px 0 72px;
    }

    .hero::before{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(249,115,22,.25), transparent 65%);
      top:-180px;
      left:-80px;
      filter:blur(20px);
      pointer-events:none;
    }

    .hero::after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(59,130,246,.16), transparent 65%);
      right:-140px;
      top:-140px;
      filter:blur(20px);
      pointer-events:none;
    }

    .hero-card{
      position:relative;
      overflow:hidden;
      background:linear-gradient(145deg, rgba(19,35,59,.86), rgba(10,20,36,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      border-radius:32px;
      padding: clamp(28px, 5vw, 52px);
      backdrop-filter: blur(14px);
    }

    .hero-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(120deg, rgba(255,255,255,.06), transparent 35%),
        radial-gradient(circle at 90% 10%, rgba(249,115,22,.18), transparent 20%);
      pointer-events:none;
    }

    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 28px;
      align-items:center;
      position:relative;
      z-index:2;
    }

    .hero-badge{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 16px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.08);
      color:#ffd7bc;
      font-size:13px;
      font-weight:700;
      margin-bottom:18px;
    }

    .hero h1{
      font-size: clamp(38px, 6vw, 64px);
      line-height: .95;
      letter-spacing:-0.04em;
      font-weight:900;
      margin:0 0 18px 0;
      color:#fff;
    }

    .hero p{
      font-size:17px;
      line-height:1.7;
      color:#c5d2e6;
      max-width:760px;
      margin:0 0 24px 0;
    }

    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top: 6px;
    }

    .btn-premium{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:52px;
      padding: 0 18px;
      border-radius:16px;
      font-weight:800;
      transition:.25s ease;
      border:1px solid transparent;
    }

    .btn-premium-primary{
      background:linear-gradient(135deg, var(--orange), var(--orange-2));
      color:#fff;
      box-shadow:0 16px 30px rgba(249,115,22,.24);
    }

    .btn-premium-primary:hover{
      transform:translateY(-2px);
      color:#fff;
      box-shadow:0 22px 40px rgba(249,115,22,.30);
    }

    .btn-premium-ghost{
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.10);
      color:#f3f7ff;
    }

    .btn-premium-ghost:hover{
      transform:translateY(-2px);
      color:#fff;
      background:rgba(255,255,255,.08);
    }

    .hero-meta{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:14px;
    }

    .meta-card{
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      border-radius:20px;
      padding:18px;
      min-height:112px;
      transition:.25s ease;
    }

    .meta-card:hover{
      transform:translateY(-4px);
      background:rgba(255,255,255,.06);
    }

    .meta-icon{
      width:42px;
      height:42px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:rgba(249,115,22,.12);
      color:#ffb88a;
      font-size:18px;
      margin-bottom:12px;
    }

    .meta-label{
      font-size:13px;
      color:#9bb0cd;
      margin-bottom:6px;
      font-weight:700;
    }

    .meta-value{
      font-size:22px;
      font-weight:900;
      color:#fff;
      line-height:1;
    }

    /* STAT STRIP */
    .stats-wrap{
      margin-top: 24px;
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:16px;
    }

    .stat-card{
      position:relative;
      overflow:hidden;
      padding:22px 20px;
      border-radius:20px;
      background:linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.07);
      box-shadow:var(--shadow);
      transition:.25s ease;
    }

    .stat-card::after{
      content:"";
      position:absolute;
      inset:auto -40px -40px auto;
      width:120px;
      height:120px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(249,115,22,.18), transparent 60%);
      pointer-events:none;
      opacity:.8;
    }

    .stat-card:hover{
      transform:translateY(-4px);
      border-color:rgba(249,115,22,.24);
    }

    .stat-card h4{
      font-size:13px;
      text-transform:uppercase;
      letter-spacing:.08em;
      color:#9eb1ca;
      margin:0 0 10px;
      font-weight:800;
    }

    .stat-card .big{
      font-size:34px;
      line-height:1;
      font-weight:900;
      color:#fff;
      margin:0;
      letter-spacing:-.03em;
    }

    .stat-card .small{
      margin-top:10px;
      color:var(--muted);
      font-size:14px;
    }

    /* VIDEO + SIDEBAR */
    .content-grid{
      display:grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap:24px;
      align-items:start;
    }

    .panel{
      background:linear-gradient(145deg, rgba(19,35,59,.78), rgba(12,23,40,.92));
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      box-shadow:var(--shadow);
      overflow:hidden;
    }

    .video-shell{
      padding:18px;
    }

    .video-frame{
      position:relative;
      width:100%;
      padding-top:56.25%;
      border-radius:22px;
      overflow:hidden;
      background:#000;
      box-shadow:0 18px 40px rgba(0,0,0,.34);
    }

    .video-frame iframe{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      border:0;
    }

    .video-caption{
      padding: 22px 24px 26px;
    }

    .video-caption h3{
      font-size:28px;
      line-height:1.1;
      margin:0 0 10px;
      font-weight:900;
      color:#fff;
    }

    .video-caption p{
      margin:0;
      color:var(--muted);
      line-height:1.7;
    }

    .sticky-card{
      position:sticky;
      top:24px;
      padding:24px;
    }

    .price-badge{
      display:inline-flex;
      gap:8px;
      align-items:center;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(34,197,94,.12);
      border:1px solid rgba(34,197,94,.20);
      color:#b8f7cb;
      font-size:12px;
      font-weight:800;
      margin-bottom:14px;
    }

    .sticky-title{
      font-size:28px;
      line-height:1.05;
      font-weight:900;
      margin-bottom:10px;
      color:#fff;
    }

    .sticky-text{
      color:var(--muted);
      line-height:1.65;
      margin-bottom:18px;
    }

    .feature-list{
      list-style:none;
      padding:0;
      margin:0 0 22px;
    }

    .feature-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      padding:10px 0;
      color:#d8e4f8;
      border-bottom:1px solid rgba(255,255,255,.06);
    }

    .feature-list li:last-child{
      border-bottom:none;
    }

    .feature-list i{
      color:#ffb88a;
      margin-top:2px;
    }

    .mini-note{
      font-size:13px;
      line-height:1.6;
      color:#8ea2bf;
      margin-top:14px;
    }

    /* MODULES */
    .module-shell{
      display:grid;
      grid-template-columns: 1fr;
      gap:18px;
    }

    .module-card{
      background:linear-gradient(145deg, rgba(19,35,59,.78), rgba(12,23,40,.92));
      border:1px solid rgba(255,255,255,.08);
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow);
      transition:.25s ease;
    }

    .module-card:hover{
      transform:translateY(-3px);
      border-color:rgba(249,115,22,.18);
    }

    .module-head{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      padding:22px 24px;
      cursor:pointer;
      background:
        linear-gradient(135deg, rgba(255,255,255,.03), transparent 40%);
    }

    .module-left{
      min-width:0;
      flex:1;
    }

    .module-kicker{
      color:#ffb88a;
      font-size:13px;
      font-weight:800;
      text-transform:uppercase;
      letter-spacing:.08em;
      margin-bottom:7px;
    }

    .module-title{
      font-size:24px;
      line-height:1.1;
      font-weight:900;
      color:#fff;
      margin:0 0 12px;
      letter-spacing:-.02em;
    }

    .module-progress-row{
      display:flex;
      align-items:center;
      gap:12px;
    }

    .module-progress{
      position:relative;
      height:8px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
      flex:1;
    }

    .module-progress > span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg, var(--orange), var(--orange-2));
      width:0%;
      transition: width .35s ease;
    }

    .module-progress-label{
      font-size:12px;
      color:#9eb1ca;
      font-weight:800;
      min-width:max-content;
    }

    .module-right{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:12px;
    }

    .module-tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border-radius:999px;
      padding:8px 12px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      color:#dbe7fb;
      font-size:12px;
      font-weight:800;
    }

    .toggle-circle{
      width:44px;
      height:44px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(249,115,22,.12);
      color:#ffb88a;
      font-size:18px;
      transition:.25s ease;
      flex-shrink:0;
    }

    .module-card.active .toggle-circle{
      transform:rotate(180deg);
      background:rgba(249,115,22,.20);
    }

    .module-body{
      max-height:0;
      overflow:hidden;
      transition:max-height .35s ease;
      border-top:1px solid rgba(255,255,255,.06);
      background:rgba(255,255,255,.015);
    }

    .module-card.active .module-body{
      max-height:900px;
    }

    .lesson{
      display:grid;
      grid-template-columns: auto 1fr auto auto;
      align-items:center;
      gap:14px;
      padding:16px 24px;
      border-bottom:1px solid rgba(255,255,255,.06);
      transition:.2s ease;
    }

    .lesson:last-child{
      border-bottom:none;
    }

    .lesson:hover{
      background:rgba(249,115,22,.05);
    }

    .lesson-check{
      width:22px;
      height:22px;
      accent-color: var(--orange);
      cursor:pointer;
    }

    .lesson-icon{
      width:40px;
      height:40px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:rgba(255,255,255,.05);
      color:#ffb88a;
      font-size:17px;
    }

    .lesson-main{
      min-width:0;
    }

    .lesson-title{
      font-size:16px;
      font-weight:800;
      color:#fff;
      margin:0 0 3px;
    }

    .lesson-desc{
      font-size:13px;
      color:#9fb0c9;
      margin:0;
      line-height:1.45;
    }

    .lesson-time{
      font-size:13px;
      color:#d8e4f8;
      font-weight:800;
      padding:8px 10px;
      border-radius:12px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.06);
      white-space:nowrap;
    }

    .lesson.done .lesson-title{
      text-decoration:line-through;
      color:#b0c1da;
    }

    .lesson.done .lesson-desc{
      color:#7d92af;
    }

    /* MATERIALS */
    .materials-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:18px;
    }

    .material-card{
      padding:24px;
      border-radius:24px;
      background:linear-gradient(145deg, rgba(19,35,59,.78), rgba(12,23,40,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      transition:.25s ease;
      height:100%;
    }

    .material-card:hover{
      transform:translateY(-4px);
      border-color:rgba(249,115,22,.20);
    }

    .material-icon{
      width:52px;
      height:52px;
      border-radius:18px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(249,115,22,.12);
      color:#ffb88a;
      font-size:22px;
      margin-bottom:16px;
    }

    .material-card h4{
      font-size:22px;
      font-weight:900;
      margin:0 0 10px;
      color:#fff;
    }

    .material-card p{
      color:var(--muted);
      line-height:1.7;
      margin:0 0 18px;
    }

    .material-link{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:#ffd7bc;
      font-weight:800;
    }

    .material-link:hover{
      color:#fff;
    }

    /* INSTRUCTOR */
    .teacher-card{
      display:grid;
      grid-template-columns: 110px 1fr;
      gap:20px;
      align-items:center;
      padding:28px;
      border-radius:28px;
      background:linear-gradient(145deg, rgba(19,35,59,.78), rgba(12,23,40,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
    }

    .teacher-avatar{
      width:110px;
      height:110px;
      border-radius:28px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg, rgba(249,115,22,.22), rgba(249,115,22,.08));
      border:1px solid rgba(249,115,22,.18);
      color:#ffcfaf;
      font-size:40px;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
    }

    .teacher-info h3{
      font-size:28px;
      line-height:1.05;
      margin:0 0 8px;
      font-weight:900;
      color:#fff;
    }

    .teacher-info .role{
      color:#ffb88a;
      font-weight:800;
      margin-bottom:12px;
      display:block;
    }

    .teacher-info p{
      color:var(--muted);
      margin:0;
      line-height:1.75;
    }

    /* ACCESS */
    .access-card{
      padding:30px;
      border-radius:28px;
      background:
        radial-gradient(circle at top right, rgba(249,115,22,.16), transparent 24%),
        linear-gradient(145deg, rgba(19,35,59,.86), rgba(12,23,40,.96));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }

    .access-title{
      font-size:34px;
      line-height:1.05;
      font-weight:900;
      margin:0 0 10px;
      color:#fff;
    }

    .access-text{
      max-width:780px;
      color:var(--muted);
      line-height:1.7;
      margin-bottom:22px;
    }

    .access-grid{
      display:grid;
      grid-template-columns: minmax(0,1fr) auto;
      gap:12px;
      align-items:center;
    }

    .access-input{
      min-height:56px;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.10);
      background:rgba(255,255,255,.04);
      color:#fff;
      outline:none;
      padding:0 16px;
      font-size:15px;
      transition:.2s ease;
    }

    .access-input::placeholder{
      color:#8fa3c0;
    }

    .access-input:focus{
      border-color:rgba(249,115,22,.45);
      box-shadow:0 0 0 4px rgba(249,115,22,.12);
    }

    .access-row{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:16px;
      align-items:center;
    }

    .tiny{
      font-size:13px;
      color:#8fa3c0;
      line-height:1.6;
    }

    /* FAQ */
    .faq-list{
      display:grid;
      gap:14px;
    }

    .faq-item{
      border-radius:20px;
      overflow:hidden;
      background:linear-gradient(145deg, rgba(19,35,59,.78), rgba(12,23,40,.92));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
    }

    .faq-q{
      padding:18px 22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      cursor:pointer;
      font-weight:800;
      color:#fff;
    }

    .faq-a{
      max-height:0;
      overflow:hidden;
      transition:max-height .3s ease;
      border-top:1px solid rgba(255,255,255,.06);
    }

    .faq-a p{
      margin:0;
      padding:18px 22px;
      color:var(--muted);
      line-height:1.75;
    }

    .faq-item.active .faq-a{
      max-height:200px;
    }

    .faq-item.active .faq-icon{
      transform:rotate(180deg);
    }

    .faq-icon{
      color:#ffb88a;
      transition:.25s ease;
    }

    /* FOOTER */
    .footer{
      margin-top: 46px;
      padding:34px 20px 42px;
      border-top:1px solid rgba(255,255,255,.06);
      background:rgba(6,11,20,.55);
      text-align:center;
    }

    .footer strong{
      color:#fff;
    }

    .footer p{
      margin: 6px 0;
      color:#8ea2bf;
      font-size:14px;
    }

    /* REVEAL */
    .reveal{
      opacity:0;
      transform: translateY(24px);
      transition: opacity .55s ease, transform .55s ease;
    }

    .reveal.visible{
      opacity:1;
      transform:none;
    }

    /* RESPONSIVE */
    @media (max-width: 1199px){
      .content-grid{
        grid-template-columns: 1fr;
      }

      .sticky-card{
        position:relative;
        top:auto;
      }

      .materials-grid{
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 991px){
      .hero-grid{
        grid-template-columns: 1fr;
      }

      .stats-wrap{
        grid-template-columns: repeat(2, 1fr);
      }

      .teacher-card{
        grid-template-columns: 1fr;
        text-align:center;
      }

      .teacher-avatar{
        margin:0 auto;
      }
    }

    @media (max-width: 767px){
      .section-space{
        padding:64px 0;
      }

      .hero{
        padding-top:94px;
      }

      .stats-wrap{
        grid-template-columns: 1fr;
      }

      .hero-meta{
        grid-template-columns: 1fr 1fr;
      }

      .module-head{
        flex-direction:column;
        align-items:flex-start;
      }

      .module-right{
        width:100%;
        flex-direction:row;
        justify-content:space-between;
        align-items:center;
      }

      .lesson{
        grid-template-columns: auto 1fr;
      }

      .lesson-time{
        grid-column: 2 / -1;
        justify-self:start;
      }

      .materials-grid{
        grid-template-columns: 1fr;
      }

      .access-grid{
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 575px){
      .hero-meta{
        grid-template-columns: 1fr;
      }

      .hero-actions{
        flex-direction:column;
      }

      .btn-premium{
        width:100%;
      }

      .sticky-title{
        font-size:24px;
      }

      .access-title{
        font-size:28px;
      }
}