:root{
            --bg1:#eef4ff;
            --bg2:#dbeafe;
            --bg3:#f8fbff;
            --primary:#2563eb;
            --primary2:#7c3aed;
            --accent:#06b6d4;
            --accent2:#22c55e;
            --text:#0f172a;
            --muted:#475569;
            --white:#ffffff;
            --stroke:rgba(37,99,235,.12);
            --glass:rgba(255,255,255,.84);
            --glass2:rgba(255,255,255,.94);
            --shadow:0 25px 70px rgba(37,99,235,.16);
            --shadow2:0 16px 40px rgba(37,99,235,.12);
            --shadow3:0 10px 24px rgba(15,23,42,.10);
            --radius:18px;
            --radius2:28px;
            --ease:cubic-bezier(.2,.9,.2,1);
            --max:1200px;
          }
          
          *,
          *::before,
          *::after{
            box-sizing:border-box;
          }
          
          html{
            width:100%;
            max-width:100%;
            overflow-x:hidden;
            scroll-behavior:smooth;
          }
          
          body{
            margin:0;
            width:100%;
            max-width:100%;
            overflow-x:hidden;
            font-family:Arial, Helvetica, sans-serif;
            color:var(--text);
            line-height:1.6;
            background:
              radial-gradient(900px 520px at 0% 0%, rgba(37,99,235,.22), transparent 58%),
              radial-gradient(900px 520px at 100% 0%, rgba(124,58,237,.20), transparent 58%),
              radial-gradient(900px 520px at 50% 100%, rgba(6,182,212,.14), transparent 58%),
              linear-gradient(180deg, var(--bg1), var(--bg2) 45%, var(--bg3));
          }
          
          body::before,
          body::after{
            content:"";
            position:fixed;
            inset:-220px;
            pointer-events:none;
            z-index:-1;
            filter:blur(44px);
            opacity:.45;
          }
          
          body::before{
            background:
              radial-gradient(circle at 15% 20%, rgba(37,99,235,.16), transparent 35%),
              radial-gradient(circle at 85% 15%, rgba(124,58,237,.14), transparent 35%);
            animation:floatBg 18s ease-in-out infinite alternate;
          }
          
          body::after{
            background:
              radial-gradient(circle at 30% 90%, rgba(6,182,212,.12), transparent 35%),
              radial-gradient(circle at 70% 85%, rgba(34,197,94,.10), transparent 35%);
            animation:floatBg 24s ease-in-out infinite alternate-reverse;
          }
          
          @keyframes floatBg{
            0%{transform:translate(-1%, -1%) scale(1);}
            100%{transform:translate(2%, 1%) scale(1.06);}
          }
          
          img,
          iframe,
          svg,
          video{
            max-width:100%;
            height:auto;
            display:block;
          }
          
          a{
            color:inherit;
            text-decoration:none;
          }
          
          h1,h2,h3,h4,p,span,a,li{
            overflow-wrap:anywhere;
            word-break:break-word;
          }
          
          .container{
            width:min(100% - 24px, var(--max));
            margin-inline:auto;
            max-width:100%;
          }
          
          .skip-link{
            position:absolute;
            left:-9999px;
            top:10px;
            background:#fff;
            color:#111;
            padding:10px 14px;
            border-radius:14px;
            z-index:9999;
            box-shadow:var(--shadow3);
          }
          
          .skip-link:focus{
            left:10px;
          }
          
          .announcement-bar{
            width:min(100% - 24px, var(--max));
            margin:12px auto 0;
            padding:12px 14px;
            border-radius:18px;
            background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.12), rgba(6,182,212,.12));
            border:1px solid var(--stroke);
            box-shadow:var(--shadow2);
            backdrop-filter:blur(12px);
            -webkit-backdrop-filter:blur(12px);
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:12px;
            flex-wrap:wrap;
            overflow:hidden;
          }
          
          .announcement-bar p{
            margin:0;
            flex:1 1 320px;
            min-width:0;
            font-weight:800;
            color:var(--text);
          }
          
          .announcement-bar a{
            text-decoration:underline;
            text-underline-offset:4px;
            font-weight:900;
          }
          
          .badge{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            padding:8px 12px;
            border-radius:999px;
            background:rgba(255,255,255,.96);
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:900;
            text-align:center;
            white-space:normal;
            max-width:100%;
            min-width:0;
            overflow-wrap:anywhere;
          }
          
          header{
            position:sticky;
            top:0;
            z-index:5000;
            margin-top:10px;
            background:rgba(255,255,255,.86);
            border-bottom:1px solid var(--stroke);
            box-shadow:0 14px 34px rgba(15,23,42,.06);
            backdrop-filter:blur(14px);
            -webkit-backdrop-filter:blur(14px);
            overflow:visible;
        }
        
        
        .main-nav{
            width:min(100% - 24px, var(--max));
            margin-inline:auto;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:12px;
            padding:10px 0;
            min-width:0;
            max-width:100%;
        }
        
        .logo{
            display:flex;
            align-items:center;
            min-width:0;
            flex:0 0 auto;
            line-height:0;
        }
        
        .logo img{
            width:230px;
            height:100px;
            object-fit:contain;
            border-radius:18px;
            max-width:100%;
        }
        
        .nav-links{
            list-style:none;
            margin:0;
            padding:0;
            display:flex;
            align-items:center;
            justify-content:flex-end;
            flex-wrap:wrap;
            gap:10px;
            flex:1 1 auto;
            min-width:0;
        }
        
        .nav-links a{
            display:inline-flex;
            align-items:center;
            gap:8px;
            padding:10px 14px;
            border-radius:999px;
            background:rgba(255,255,255,.95);
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:800;
            color:var(--text);
            text-decoration:none;
            transition:transform .25s ease, box-shadow .25s ease, color .25s ease;
        }
        
        .nav-links a:hover{
            transform:translateY(-3px);
            box-shadow:var(--shadow2);
            color:var(--primary);
        }
        
        .menu-toggle,
      .close-btn{
      width:46px;
      height:46px;
      border:none;
      border-radius:16px;
      background:rgba(255,255,255,.96);
      border:1px solid var(--stroke);
      box-shadow:var(--shadow3);
      cursor:pointer;
      display:none;
      align-items:center;
      justify-content:center;
      color:var(--text);
      font-size:18px;
      flex-shrink:0;
      position:relative;
      z-index:5002;
      }
        
       
.sidebar{
      position:fixed;
      top:0;
      right:0;
      width:min(360px, 90vw);
      max-width:100%;
      height:100vh;
      background:rgba(255,255,255,.98);
      border-left:1px solid var(--stroke);
      box-shadow:-20px 0 60px rgba(15,23,42,.12);
      padding:18px 14px;
      transform:translateX(100%);
      transition:transform .35s ease;
      z-index:5003;
      overflow-y:auto;
      overflow-x:hidden;
  }
  
  .sidebar.open{
      transform:translateX(0);
  }
        
        .sidebar .close-btn{
            display:flex;
            margin-left:auto;
            margin-bottom:14px;
        }
        
        .sidebar ul{
            list-style:none;
            padding:0;
            margin:0;
            display:grid;
            gap:10px;
        }
        
        .sidebar a{
            display:block;
            padding:12px 14px;
            border-radius:16px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:800;
            color:var(--text);
            text-decoration:none;
        }
        
        .sidebar-social{
            display:flex;
            flex-wrap:wrap;
            gap:10px;
            margin-top:16px;
        }
        
        .sidebar-social a{
            width:44px;
            height:44px;
            display:flex;
            align-items:center;
            justify-content:center;
            border-radius:14px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
        }
        
        .page-hero{
            padding:20px 0 0;
        }
        
        .hero-card{
            background:linear-gradient(135deg, rgba(37,99,235,.14), rgba(124,58,237,.12), rgba(6,182,212,.12));
            border:1px solid var(--stroke);
            border-radius:30px;
            box-shadow:var(--shadow);
            padding:24px 18px;
            overflow:hidden;
        }
        
        .hero-card h1{
            margin:0 0 12px;
            font-size:clamp(28px, 4vw, 48px);
            line-height:1.15;
            color:var(--text);
        }
        
        .hero-card p{
            margin:0;
            font-size:clamp(15px, 2vw, 18px);
            color:var(--muted);
            font-weight:700;
        }
        
        .carousel{
            margin:18px auto 0;
            width:min(100% - 24px, var(--max));
            max-width:100%;
            overflow:hidden;
        }
        
        .slides{
            overflow:hidden;
            padding:14px 12px;
            border-radius:22px;
            background:var(--glass);
            border:1px solid var(--stroke);
            box-shadow:var(--shadow2);
            position:relative;
        }
        
        .slides::before,
        .slides::after{
            content:"";
            position:absolute;
            top:0;
            bottom:0;
            width:80px;
            z-index:2;
            pointer-events:none;
        }
        
        .slides::before{
            left:0;
            background:linear-gradient(90deg, rgba(255,255,255,.98), transparent);
        }
        
        .slides::after{
            right:0;
            background:linear-gradient(270deg, rgba(255,255,255,.98), transparent);
        }
        
        .track{
            display:flex;
            align-items:center;
            gap:14px;
            width:max-content;
            will-change:transform;
            animation:marquee 26s linear infinite;
        }
        
        .slides:hover .track{
            animation-play-state:paused;
        }
        
        .slide{
            flex:0 0 auto;
            padding:12px 16px;
            border-radius:999px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:900;
            white-space:nowrap;
            max-width:100%;
        }
        
        @keyframes marquee{
            0%{transform:translateX(0);}
            100%{transform:translateX(-50%);}
        }
        
        .modern-section{
            width:min(100% - 24px, var(--max));
            margin:24px auto 0;
            max-width:100%;
        }
        
        .modern-card{
            background:linear-gradient(135deg, rgba(255,255,255,.92), rgba(240,247,255,.90), rgba(245,240,255,.90));
            border-radius:28px;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow);
            overflow:hidden;
        }
        
        .modern-inner{
            padding:18px 16px;
            max-width:100%;
            overflow:hidden;
        }
        
        .modern-title,
        .section-title{
            margin:0 0 10px;
            font-size:clamp(22px, 3vw, 34px);
            color:var(--text);
        }
        
        .modern-sub,
        .section-sub{
            margin:0 0 18px;
            color:var(--muted);
            font-weight:700;
        }
        
        .top-intro{
            display:grid;
            grid-template-columns:1.1fr .9fr;
            gap:18px;
            margin-bottom:18px;
        }
        
        .mini-card{
            background:rgba(255,255,255,.96);
            border:1px solid var(--stroke);
            border-radius:22px;
            box-shadow:var(--shadow3);
            padding:16px;
            min-width:0;
        }
        
        .mini-card h3{
            margin:0 0 8px;
            font-size:20px;
        }
        
        .count-text{
            font-weight:900;
            color:var(--primary);
        }
        
        .search-wrap{
            display:flex;
            flex-wrap:wrap;
            gap:12px;
            align-items:stretch;
            margin-bottom:18px;
            max-width:100%;
        }
        
        .search-wrap input{
           /* flex:1 1 280px;*/
            min-width:0;
            width:100%;
            height:42px;
            padding:6px 12px;
            border-radius:14px;
            border:1px solid var(--stroke);
            background:#fff;
            box-shadow:var(--shadow3);
            font-size:14px;
            line-height:1.2;
            outline:none;
            color:var(--text);
        }
        
        .search-wrap input:focus{
            outline:3px solid rgba(37,99,235,.18);
        }
        
        .search-wrap input::placeholder{
            color:#64748b;
            opacity:1;
        }
        
        .translate-holder{
            /*flex:1 1 280px;*/
            min-width:0;
            width:100%;
            max-width:100%;
            height:42px;
            display:flex;
            align-items:center;
            padding:4px 8px;
            border-radius:14px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            overflow:hidden;
        }
        
        /* google translator fit container */
        #google_translate_element{
            width:100% !important;
            max-width:100% !important;
            height:100% !important;
          
            display:flex !important;
            align-items:center !important;
            overflow:hidden !important;
          }
        
        #google_translate_element .goog-te-gadget{
            width:100% !important;
            max-width:100% !important;
            height:100% !important;
            font-size:0 !important;
            line-height:1 !important;
            overflow:hidden !important;
            display:flex !important;
            align-items:center !important;
        }
        
        #google_translate_element .goog-te-gadget > span{
            display:block !important;
            width:100% !important;
            max-width:100% !important;
        }
        
        #google_translate_element .goog-te-gadget .goog-te-combo{
            width:100% !important;
            max-width:100% !important;
            min-width:0 !important;
            height:32px !important;
            padding:4px 6px !important;
            border-radius:10px !important;
            border:1px solid var(--stroke) !important;
            background:#fff !important;
            color:var(--text) !important;
            font-size:13px !important;
            box-sizing:border-box !important;
            cursor:pointer !important;
            outline:none !important;
        }
        
        /* make only dropdown visible */
        #google_translate_element .goog-te-gadget span{
            display:none !important;
        }
        
        .goog-te-banner-frame.skiptranslate,
        body > .skiptranslate{
            max-width:100% !important;
        }
        
        .translate-holder{
            cursor:pointer;
          }
        .skiptranslate iframe{
            max-width:100% !important;
        }
        
        #google_translate_element .goog-te-combo{
            width:100% !important;
            max-width:100% !important;
          
            height:32px !important;
            padding:4px 6px !important;
          
            border-radius:10px !important;
            border:1px solid var(--stroke) !important;
          
            background:#fff !important;
            color:var(--text) !important;
          
            font-size:13px !important;
          
            box-sizing:border-box;
            cursor:pointer;
          }

        .chips{
            display:flex;
            flex-wrap:wrap;
            gap:10px;
            max-width:100%;
        }
        
        .chip{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            padding:10px 12px;
            border-radius:999px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:900;
            max-width:100%;
            text-align:center;
            overflow-wrap:anywhere;
        }
        
        .category-block{
            margin-top:24px;
            max-width:100%;
        }
        
        .category-anchor{
            scroll-margin-top:120px;
        }
        
        .mini-badge{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            padding:8px 12px;
            border-radius:999px;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-weight:900;
            margin-bottom:10px;
            max-width:100%;
            text-align:center;
            white-space:normal;
            overflow-wrap:anywhere;
        }
        
        .cards-grid{
            display:grid;
            grid-template-columns:repeat(4, minmax(0, 1fr));
            gap:20px;
            max-width:100%;
        }
        
        .card{
            background:linear-gradient(135deg, rgba(255,255,255,.98), rgba(240,247,255,.96), rgba(245,240,255,.95));
            border:1px solid var(--stroke);
            border-radius:24px;
            box-shadow:var(--shadow2);
            padding:16px;
            height:100%;
            min-width:0;
            overflow:hidden;
            transition:transform .25s ease, box-shadow .25s ease;
        }
        
        .card:hover{
            transform:translateY(-4px);
            box-shadow:0 28px 80px rgba(37,99,235,.14);
        }
        
        .card h3{
            margin:0 0 10px;
            font-size:20px;
        }
        
        .card h3 a{
            display:inline-flex;
            align-items:flex-start;
            gap:8px;
            font-weight:900;
            overflow-wrap:anywhere;
            text-decoration:none;
            color:inherit;
            transition:color .25s ease, text-decoration-color .25s ease;
        }
        
        .card:hover h3 a{
            color:#2563eb;
            text-decoration:underline;
            text-underline-offset:4px;
        }
        
        .card p{
            margin:0;
            color:var(--muted);
            font-size:14px;
            font-weight:700;
        }
        
        .course-hidden{
            display:none !important;
        }
        
        .highlight-course{
            outline:3px solid rgba(37,99,235,.18);
            box-shadow:0 0 0 6px rgba(37,99,235,.08), var(--shadow2);
        }
        
        /* searched word highlight */
        mark.highlight{
            background:linear-gradient(135deg, #facc15, #fde047);
            color:#111;
            padding:2px 4px;
            border-radius:4px;
            font-weight:900;
            box-shadow:0 0 8px rgba(250,204,21,.35);
        }
        
        footer{
            margin-top:34px;
            border-top:1px solid var(--stroke);
            padding:30px 0 40px;
            overflow:hidden;
        }
        
        .footer-grid{
            width:min(100% - 24px, var(--max));
            margin-inline:auto;
            display:grid;
            grid-template-columns:repeat(4, minmax(0, 1fr));
            gap:18px;
            margin-bottom:18px;
        }
        
        .footer-column{
            text-align:center;
            min-width:0;
        }
        
        .footer-column h3{
            margin:0 0 10px;
            font-size:16px;
        }
        
        .footer-column a{
            display:block;
            padding:6px 0;
            font-weight:800;
            color:var(--muted);
            text-decoration:none;
              font-size:12px; 
        }
        
        .footer-social{
            width:min(100% - 24px, var(--max));
            margin:0 auto 16px;
            display:flex;
            justify-content:center;
            flex-wrap:wrap;
            gap:12px;
            max-width:100%;
        }
        
        .footer-social a{
            width:30px;
            height:30px;
            display:flex;
            align-items:center;
            justify-content:center;
            border-radius:50%;
            background:#fff;
            border:1px solid var(--stroke);
            box-shadow:var(--shadow3);
            font-size:18px;
            flex-shrink:0;
        }
        
        .footer-copy{
            text-align:center;
            color:var(--muted);
            font-weight:800;
            padding:12px 16px;
            max-width:100%;
            margin:0 auto;
        }
        
        #goTopBtn{
            position:fixed;
            right:16px;
            bottom:16px;
            width:56px;
            height:56px;
            border:none;
            border-radius:22px;
            background:linear-gradient(135deg, var(--primary), var(--primary2), var(--accent));
            color:#fff;
            box-shadow:var(--shadow);
            cursor:pointer;
            opacity:0;
            visibility:hidden;
            transform:translateY(14px) scale(.96);
            transition:all .25s ease;
            z-index:9999;
        }
        
        #goTopBtn.show{
            opacity:1;
            visibility:visible;
            transform:translateY(0) scale(1);
        }
        
        @media (max-width:1100px){
            .cards-grid{
                grid-template-columns:repeat(3, minmax(0, 1fr));
            }
        }
        
        @media (max-width:900px){
            .top-intro{
                grid-template-columns:1fr;
            }
        
            .cards-grid{
                grid-template-columns:repeat(2, minmax(0, 1fr));
            }
        
            .footer-grid{
                grid-template-columns:repeat(2, minmax(0, 1fr));
            }
        }
        
        @media (max-width:860px){
            .nav-links{
                display:none;
            }
        
            .menu-toggle{
                display:flex;
            }
        }
        
        @media (max-width:680px){
            .search-wrap{
                flex-direction:column;
                align-items:stretch;
            }
        
            .search-wrap input,
            .translate-holder{
                width:100%;
            }
        
            .search-wrap input{
                height:40px;
                padding:6px 10px;
                font-size:13px;
            }
            .translate-holder{
                  width:100%;
                  height:40px;
        
            .translate-holder{
                height:40px;
                padding:3px 8px;
            }
        
            #google_translate_element .goog-te-gadget .goog-te-combo{
                height:32px !important;
                font-size:13px !important;
            }
        }
        
        @media (max-width:520px){
            .logo img{
                width:150px;
                height:80px;
            }
        
            .announcement-bar{
                text-align:center;
                justify-content:center;
            }
        
            .announcement-bar p{
                flex:0 0 100%;
            }
        
            .cards-grid{
                grid-template-columns:1fr;
            }
        
            .footer-grid{
                grid-template-columns:repeat(2, minmax(0, 1fr));
                gap:14px;
            }
        
            .modern-inner{
                padding:16px 14px;
            }
        
            .hero-card{
                padding:20px 14px;
            }
        
            .slides::before,
            .slides::after{
                width:36px;
            }
        }
        
        @media (prefers-reduced-motion: reduce){
            *,
            *::before,
            *::after{
                animation:none !important;
                transition:none !important;
                scroll-behavior:auto !important;
            }
        }