:root {
      --blue-dark: #052466; --blue-primary: #0B42A1; --blue-light: #3B6FD4;
      --orange: #FF5B00; --orange-hover: #E04D00; --white: #fff;
      --text-main: #1A2340; --text-muted: #64748B; --border: #DCE4F5;
      --shadow: 0 8px 32px rgba(11,66,161,0.12);
    }
    html, body {
      overflow-x: hidden !important;
      max-width: 100% !important;
      width: 100% !important;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 80px; }
    body {
      font-family: 'Plus Jakarta Sans', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      color: var(--text-main);
      background: #F4F7FD;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-rendering: optimizeLegibility;
      letter-spacing: -0.01em;
      padding-top: 102px !important;
    }
    #ifish-page-loader { position:fixed; inset:0; z-index:10000001; display:grid; place-items:center; background:linear-gradient(135deg,#052466,#0B42A1 58%,#0D5BBB); color:#FFF; transition:opacity .38s ease,visibility .38s ease; }
    .loader-inner { width:min(330px,82vw); text-align:center; } .loader-fish { width:82px; height:82px; object-fit:contain; filter:drop-shadow(0 10px 18px rgba(0,0,0,.28)); animation:loaderFish 1.2s ease-in-out infinite alternate; }
    .loader-wordmark { margin:12px 0 16px; font-size:18px; font-weight:900; letter-spacing:.08em; } .loader-caption { margin:0 0 13px; color:#DCEBFF; font-size:13px; }
    .loader-track { height:6px; overflow:hidden; border-radius:999px; background:rgba(255,255,255,.24); } .loader-progress { display:block; width:34%; height:100%; border-radius:inherit; background:#FF8A34; animation:loaderProgress 3.9s cubic-bezier(.2,.8,.2,1) forwards; }
    .page-ready #ifish-page-loader { opacity:0; visibility:hidden; pointer-events:none; } @keyframes loaderFish { to { transform:translateY(-8px) rotate(5deg); } } @keyframes loaderProgress { 0%{width:10%} 68%{width:82%} 100%{width:100%} }
    .image-load-indicator { position:fixed; z-index:9998; display:grid; place-items:center; min-width:42px; min-height:32px; padding:6px 9px; border:2px solid #FF5B00; background:rgba(255,255,255,.94); color:#0B42A1; box-shadow:0 5px 15px rgba(11,66,161,.16); font:800 12px/1 'Plus Jakarta Sans',sans-serif; letter-spacing:.02em; pointer-events:none; transition:opacity .25s ease,transform .25s ease; }
    .image-load-indicator.done { opacity:0; transform:scale(.86); } .image-load-indicator.failed { border-color:#94A3B8; color:#64748B; }
    @media (prefers-reduced-motion:reduce) { .loader-fish,.loader-progress { animation:none; } .loader-progress { width:100%; } }
    a { color: var(--blue-primary); text-decoration: none; }
    .site-cursor-arrow { position:fixed; z-index:10000000; pointer-events:none; width:32px; height:40px; transform:translate(-5px,-4px); filter:drop-shadow(0 3px 3px rgba(5,36,102,.28)); } .site-cursor-arrow path { fill:#FF5B00; stroke:#fff; stroke-width:1.8; transition:fill .18s ease; } .site-cursor-arrow.is-click path { fill:#0B42A1; }
    .site-fish-cursor { position:fixed; z-index:9999999; pointer-events:none; width:52px; height:52px; object-fit:contain; transform:translate(10px,8px); filter:drop-shadow(0 5px 6px rgba(5,36,102,.38)); transition:filter .18s ease; }
    .site-fish-cursor { transform:translate(26px,48px); }
    .site-fish-cursor.is-hover { filter:drop-shadow(0 0 11px rgba(255,91,0,.95)) saturate(1.28); animation:siteFishPulse .55s ease-in-out infinite alternate; }
    .site-fish-cursor.is-click { filter:drop-shadow(0 0 15px rgba(37,99,235,.95)) saturate(1.4); }
    @keyframes siteFishPulse { to { scale:1.12; rotate:-5deg; } }
    .fish-cursor-enabled,.fish-cursor-enabled * { cursor:none !important; }
    .site-edge { position:fixed; z-index:0; top:135px; bottom:30px; width:clamp(104px,10vw,208px); pointer-events:none; }
    .site-edge.left { left:0; } .site-edge.right { right:0; }
    .site-watermark { position:absolute; font:400 clamp(170px,21vw,360px)/.72 Georgia,'Times New Roman',serif; color:rgba(11,66,161,.045); letter-spacing:-.12em; animation:siteEdgeDrift 12s ease-in-out infinite; } .site-edge.left .site-watermark { left:-20px; top:10%; } .site-edge.right .site-watermark { right:-12px; top:29%; color:rgba(255,91,0,.05); animation-delay:-6s; }
    .site-vertical-copy { position:absolute; top:47%; font:700 10px/1.1 Arial,sans-serif; letter-spacing:.27em; color:rgba(11,66,161,.26); white-space:nowrap; writing-mode:vertical-rl; text-transform:uppercase; } .site-edge.left .site-vertical-copy { left:21px; transform:rotate(180deg); } .site-edge.right .site-vertical-copy { right:21px; color:rgba(255,91,0,.32); }
    .site-mesh { position:absolute; width:160px; height:230px; border-radius:50%; filter:blur(62px); opacity:.16; background:radial-gradient(circle,#1d6eea,transparent 68%); bottom:8%; left:-72px; } .site-edge.right .site-mesh { top:8%; bottom:auto; left:auto; right:-74px; background:radial-gradient(circle,#FF5B00,transparent 68%); }
    .site-scroll-indicator { position:fixed; right:20px; top:42%; height:150px; width:2px; background:rgba(11,66,161,.14); z-index:2; } .site-scroll-indicator i { display:block; width:8px; height:8px; background:#FF5B00; border-radius:50%; transform:translate(-3px,var(--scroll-pos,0px)); box-shadow:0 0 0 4px rgba(255,91,0,.13); transition:transform .12s linear; }
    @keyframes siteEdgeDrift { 50% { transform:translateY(-28px) rotate(3deg); } }

    /* Modal Popups Overlay */
    .modal-overlay {
      display: none;
      position: fixed !important;
      top: 0 !important; left: 0 !important;
      width: 100vw !important; height: 100vh !important;
      background: rgba(15, 23, 42, 0.85) !important;
      backdrop-filter: blur(8px) !important;
      -webkit-backdrop-filter: blur(8px) !important;
      z-index: 9999999 !important;
      align-items: center !important;
      justify-content: center !important;
      pointer-events: auto !important;
    }
    .modal-overlay.open {
      display: flex !important;
    }
    .modal-box {
      background: #FFFFFF;
      border-radius: 14px;
      padding: 28px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      border: 2px solid #CBD5E1;
      position: relative;
      color: #0F172A;
    }

    /* Header Nav (Ghim cố định trên cùng màn hình) */
    .pub-nav {
      position: fixed !important;
      top: 32px !important;
      left: 0 !important;
      right: 0 !important;
      width: 100% !important;
      z-index: 99999 !important;
      background: rgba(5, 36, 102, 0.98) !important;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      height: 70px;
      padding: 0 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 2px solid rgba(255, 91, 0, 0.5);
      box-shadow: 0 4px 20px rgba(5, 36, 102, 0.4);
    }
    .pub-nav .brand { font-size: 22px; font-weight: 900; color: #FFF; letter-spacing: 0.5px; }
    .pub-nav .nav-center { display: flex; gap: 8px; }
    .pub-nav .nav-center a { font-size: 14px; font-weight: 800; color: #FFB083; padding:8px 11px; border:1px solid transparent; border-radius:9px; transition:all .2s ease; }
    .pub-nav .nav-center a:hover, .pub-nav .nav-center a:focus-visible { color:#FFF; border-color:#FFB083; background:rgba(255,255,255,.12); box-shadow:0 0 0 3px rgba(255,91,0,.18); outline:0; }
    .pub-nav .nav-right { display: flex; gap: 12px; align-items: center; }
    .btn-nav-login {
      padding: 9px 20px; border-radius: 4px; font-size: 14px; font-weight: 700;
      border: 2px solid rgba(255,255,255,0.5); color: var(--white);
      background: transparent; cursor: pointer; transition: all 0.22s;
    }
    .btn-nav-login:hover { background: rgba(255,255,255,0.15); border-color: var(--white); color: var(--white); }
    .btn-nav-student {
      padding: 9px 18px; border-radius: 4px; font-size: 14px; font-weight: 800;
      background: #FF6B00; color: #FFFFFF; text-decoration: none; cursor: pointer;
      display: inline-flex; align-items: center; gap: 6px; box-shadow: 0 4px 12px rgba(255,107,0,0.35); transition: all 0.22s;
    }
    .btn-nav-student:hover { background: #E05300; color: #FFFFFF; transform: translateY(-1px); }
    .btn-nav-register {
      padding: 9px 22px; border-radius: 4px; font-size: 14px; font-weight: 700;
      background: var(--orange); color: var(--white); border: none; cursor: pointer; transition: all 0.22s;
    }
    .btn-nav-register:hover { background: var(--orange-hover); color: var(--white); transform: translateY(-1px); }

    /* ── COURSE TAG FILTER BUTTONS ── */
    .course-filter-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin: 24px auto 32px; max-width: 860px; }
    .course-filter-btn {
      padding: 9px 20px; border-radius: 999px; font-size: 13.5px; font-weight: 800;
      background: #FFFFFF; color: #0B42A1; border: 1.5px solid #BFDBFE;
      box-shadow: 0 4px 12px rgba(11,66,161,0.06); cursor: pointer; transition: all 0.22s ease;
      display: inline-flex; align-items: center; gap: 7px; user-select: none;
    }
    .course-filter-btn:hover {
      background: #EFF6FF; border-color: #0B42A1; transform: translateY(-1px);
    }
    .course-filter-btn.active {
      background: linear-gradient(135deg, #0B42A1 0%, #1D4ED8 100%);
      color: #FFFFFF; border-color: #0B42A1; box-shadow: 0 6px 18px rgba(11,66,161,0.3);
    }
    @media (max-width: 768px) {
      .course-filter-bar { gap: 6px; margin: 16px auto 24px; padding: 0 10px; }
      .course-filter-btn { padding: 7px 14px; font-size: 12px; }
    }

    /* ── HERO SLIDER ── */
    .hero-slider { position: relative; height: 640px; min-height: 560px; overflow: hidden; isolation:isolate; }
    .slide {
      position: absolute; inset: 0; display: flex; align-items: center;
      opacity: 0; visibility:hidden; transition: opacity 0.8s ease;
    }
    .slide.active { opacity: 1; visibility:visible; z-index: 1; }
    .slide-bg {
      position: absolute; inset: 0; background-size: cover; background-position: right center;
    }
    .slide-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(3, 16, 46, 0.88) 0%, rgba(5, 26, 74, 0.68) 40%, rgba(5, 26, 74, 0.15) 65%, transparent 100%);
    }
    .hero-particles { position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.78; }
    .hero-dots {
      position: absolute; bottom: 28px; left: 48px;
      z-index: 10; display: flex; gap: 10px; align-items: center;
    }
    .hero-dot {
      position: relative;
      width: 12px; height: 12px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.85);
      background: rgba(255,255,255,0.3); cursor: pointer; transition: all 0.3s cubic-bezier(0.2,0.8,0.2,1);
      padding: 0; outline: none;
    }
    .hero-dot::after {
      content: '';
      position: absolute;
      top: -16px; bottom: -16px; left: -16px; right: -16px;
      min-width: 44px; min-height: 44px;
    }
    .hero-dot:hover { background: rgba(255,255,255,0.7); transform: scale(1.15); }
    .hero-dot.active {
      width: 32px; border-radius: 999px; background: #FF5B00; border-color: #FF5B00;
      box-shadow: 0 0 12px rgba(255,91,0,0.6);
    }
    .slide-content {
      position: relative; z-index: 2;
      width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 48px;
      display: flex; align-items: center; justify-content: flex-start; text-align: left;
    }
    .slide-text { max-width: 580px; text-align: left; margin-left: 0; margin-right: auto; }
    .slide-tag {
      display: inline-block; background: var(--orange); color: var(--white);
      font-size: 12px; font-weight: 800; padding: 6px 16px; border-radius: 4px;
      letter-spacing: 1px; text-transform: uppercase; margin-bottom: 14px;
    }
    .slide-text h1 {
      font-size: clamp(30px, 3.4vw, 44px); font-weight: 900; color: var(--white);
      line-height: 1.25; margin-bottom: 14px;
      text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    }
    .slide-text p {
      color: #FFFFFF !important; opacity: 1 !important; font-size: 16px; line-height: 1.6;
      font-weight: 500; margin-bottom: 22px; text-shadow: 0 2px 8px rgba(0,0,0,0.7);
    }
    .slide-btns { display: flex; flex-wrap:wrap; gap: 14px; justify-content: flex-start; align-items: center; }
    .hero-btn-primary {
      position:relative; isolation:isolate; overflow:hidden; min-height: 52px; width: auto;
      padding: 14px 34px; border: 2px solid #FFF1D6; border-radius: 12px;
      background: linear-gradient(135deg,#FF4D00 0%,#FF7500 55%,#FF9D00 100%);
      color:#FFF !important; font-size: 17px; font-weight: 800; letter-spacing:.01em; text-decoration:none;
      text-shadow: 0 1px 2px rgba(105,32,0,.34);
      box-shadow: 0 8px 20px rgba(255,91,0,.38);
      transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s ease, filter .25s ease;
      display: inline-flex; align-items: center; justify-content: center;
    }
    .hero-btn-primary::before { content:""; position:absolute; inset:0; z-index:-1; background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.42) 48%,transparent 70%); transform:translateX(-120%); transition:transform .7s ease; }
    .hero-btn-primary:hover, .hero-btn-primary:focus-visible {
      background: linear-gradient(135deg,#ff5b00 0%,#ff7d00 55%,#ffa500 100%);
      color: #fff !important; transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 28px rgba(255,91,0,.52);
      filter: saturate(1.12); outline: none;
    }
    .hero-btn-primary:hover::before, .hero-btn-primary:focus-visible::before { transform: translateX(120%); }
    .hero-btn-primary:active {
      transform: translateY(2px) scale(0.985);
      box-shadow: 0 4px 12px rgba(255,91,0,.3);
    }
    .hero-register-cta { animation:ctaPulse 2.8s ease-in-out infinite; }
    @keyframes ctaPulse { 0%,100%{filter:saturate(1)} 50%{filter:saturate(1.18) brightness(1.06)} }
    .slide.active .slide-text { animation:heroEntrance .72s cubic-bezier(.2,.8,.2,1) both; }
    @keyframes heroEntrance { from {opacity:0;transform:translateY(20px) scale(.98)} to {opacity:1;transform:none} }
    .reveal-on-scroll { opacity:0; transform:translateY(22px); transition:opacity .6s ease,transform .6s cubic-bezier(.2,.8,.2,1); }
    .reveal-on-scroll.is-visible { opacity:1; transform:none; }
    .hero-btn-secondary {
      background: rgba(255, 255, 255, 0.18) !important;
      backdrop-filter: blur(10px) !important;
      -webkit-backdrop-filter: blur(10px) !important;
      border: 2px solid rgba(255, 255, 255, 0.9) !important;
      color: #FFFFFF !important;
      padding: 12px 26px;
      border-radius: 12px;
      font-weight: 700;
      font-size: 15.5px;
      text-decoration: none;
      transition: all 0.25s ease-in-out;
      display: inline-flex;
      align-items: center;
    }
    .hero-btn-secondary:hover {
      background: #FFFFFF !important;
      color: #0B42A1 !important;
      border-color: #FFFFFF !important;
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 255, 255, 0.4) !important;
    }

    /* Floating Quick Bar */
    .quick-bar-wrap { display: flex; justify-content: center; padding: 0 48px; margin-top: 16px; position: relative; z-index: 50; }
    .quick-bar {
      display: flex; gap: 0; border-radius: 10px; overflow: hidden;
      box-shadow: 0 16px 48px rgba(11,66,161,0.2);
      max-width: 850px; width: 100%;
      background: rgba(255,255,255,0.85); backdrop-filter: blur(16px);
      border: 1px solid rgba(255,255,255,0.8);
    }
    .quick-action {
      flex: 1; padding: 20px 24px; display: flex; align-items: center; gap: 14px;
      cursor: pointer; transition: all 0.22s; border-right: 1px solid var(--border); text-decoration: none;
    }
    .quick-action:last-child { border-right: none; }
    .quick-action:hover { background: #EFF6FF; }
    .quick-action .qa-label { font-size: 14px; font-weight: 800; color: var(--blue-dark); }
    .quick-action .qa-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

    /* ── MARQUEE TICKER ── */
    .marquee-bar {
      background: linear-gradient(90deg, #FF5B00 0%, #E04D00 50%, #FF5B00 100%);
      overflow: hidden;
      padding: 12px 0;
      box-shadow: 0 4px 18px rgba(255, 91, 0, 0.3);
      border-top: 2px solid rgba(255,255,255,0.4);
      border-bottom: 2px solid rgba(255,255,255,0.4);
      position: fixed; top:0; left:0; right:0; z-index: 100000; padding:6px 0;
    }
    .marquee-track {
      display: flex;
      width: max-content;
      animation: marquee 32s linear infinite;
    }
    .marquee-track:hover {
      animation-play-state: paused;
    }
    .marquee-content {
      display: flex;
      gap: 60px;
      padding-right: 60px;
      flex-shrink: 0;
    }
    .marquee-track span {
      color: #FFFFFF !important;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.6px;
      text-shadow: 0 1px 4px rgba(0,0,0,0.3);
      white-space: nowrap;
    }
    @keyframes marquee {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }

    /* ── SECTIONS & GLASS CARDS ── */
    .section-wrap { max-width: 1200px; margin: 0 auto; padding: 72px 48px; }
    .sec-header { text-align: center; margin-bottom: 48px; }
    .sec-tag { display: inline-block; color: var(--orange); font-size: 13px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 8px; }
    .sec-title { font-size: clamp(26px,3vw,36px); font-weight: 800; color: var(--blue-dark); line-height: 1.35; letter-spacing: -0.02em; }
    .sec-sub { font-size: 15.5px; color: var(--text-muted); margin-top: 10px; max-width: 660px; margin-left: auto; margin-right: auto; line-height: 1.6; }

    /* 3D Modern Image Course Cards */
    .courses-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; perspective: 1200px; }
    .course-glass-card {
      position: relative; border-radius: 16px; overflow: hidden;
      background: #FFFFFF;
      box-shadow: 0 10px 30px rgba(11,66,161,0.08);
      transition: transform 0.22s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.28s ease;
      border: 1px solid rgba(220, 228, 245, 0.85);
      display: flex; flex-direction: column;
      transform-style: preserve-3d; will-change: transform;
    }
    .course-glass-card .card-3d-glare {
      position: absolute; inset: 0; pointer-events: none; z-index: 5; opacity: 0;
      background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 65%);
      transition: opacity 0.25s ease; border-radius: inherit;
    }
    .course-glass-card.is-tilting .card-3d-glare { opacity: 1; }
    .course-glass-card:hover {
      box-shadow: 0 20px 48px rgba(11,66,161,0.18);
      transform: translateY(-6px);
      border-color: rgba(11,66,161,0.3);
    }
    .course-thumb-box {
      position: relative;
      height: 205px;
      width: 100%;
      overflow: hidden;
      background: #0B42A1;
    }
    .course-thumb-img {
      width: 100%; height: 100%;
      object-fit: cover;
      object-position: center 32%;
      transition: transform 0.5s cubic-bezier(0.2,0.8,0.2,1);
      display: block;
    }
    .course-glass-card:hover .course-thumb-img {
      transform: scale(1.08);
    }
    .course-thumb-badges {
      position: absolute; top: 14px; left: 14px; right: 14px;
      display: flex; justify-content: space-between; align-items: center;
      z-index: 3; pointer-events: none;
    }
    .course-tag {
      display: inline-flex; align-items: center;
      background: rgba(11, 66, 161, 0.9); backdrop-filter: blur(8px);
      color: #FFFFFF; font-size: 11px; font-weight: 800;
      padding: 5px 12px; border-radius: 6px; text-transform: uppercase;
      letter-spacing: 0.02em; box-shadow: 0 4px 12px rgba(0,0,0,0.18);
    }
    .course-discount-pill {
      display: inline-flex; align-items: center;
      background: #FF5B00; color: #FFFFFF;
      font-size: 11.5px; font-weight: 800;
      padding: 5px 11px; border-radius: 6px;
      box-shadow: 0 4px 12px rgba(255,91,0,0.35);
    }
    .course-content-box {
      padding: 22px 20px 20px;
      display: flex; flex-direction: column; flex-grow: 1;
      background: #FFFFFF;
    }
    .course-title {
      font-size: 18.5px; font-weight: 800; color: #052466;
      margin-bottom: 8px; line-height: 1.35;
    }
    .course-desc {
      font-size: 13.5px; color: #64748B; line-height: 1.55;
      margin-bottom: 16px; flex-grow: 1;
      display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    }
    .course-pricing-row {
      display: flex; align-items: baseline; justify-content: space-between;
      padding: 12px 0 14px; border-top: 1px dashed #E2E8F0;
      margin-bottom: 14px;
    }
    .course-price-label {
      font-size: 12px; font-weight: 700; color: #64748B; text-transform: uppercase;
    }
    .course-price-values {
      display: flex; align-items: baseline; gap: 8px;
    }
    .course-price-struck {
      display: inline-block;
      text-decoration: line-through !important;
      text-decoration-color: #EF4444 !important;
      text-decoration-thickness: 2.5px !important;
      color: #94A3B8 !important;
      font-size: 14.5px; font-weight: 700;
    }
    .course-price-final {
      font-size: 21px; font-weight: 900; color: #0B42A1 !important;
      letter-spacing: -0.02em;
    }
    .course-btn-group {
      display: flex; gap: 10px;
    }
    .course-btn-detail {
      flex: 1; padding: 10px 14px; border-radius: 8px;
      border: 1.5px solid #0B42A1; background: #FFFFFF;
      color: #0B42A1; font-weight: 700; font-size: 13.5px;
      cursor: pointer; transition: all 0.2s ease; text-align: center;
    }
    .course-btn-detail:hover {
      background: #EFF6FF; border-color: #0B42A1; color: #052466;
    }
    .course-btn-register {
      flex: 1; padding: 10px 14px; border-radius: 8px;
      border: none; background: #FF5B00;
      color: #FFFFFF !important; font-weight: 800; font-size: 13.5px;
      text-align: center; text-decoration: none; display: flex; align-items: center; justify-content: center;
      box-shadow: 0 4px 14px rgba(255,91,0,0.25);
      transition: all 0.2s ease;
    }
    .course-btn-register:hover {
      background: #E04D00; transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255,91,0,0.35);
    }

    /* ═══ 3-COLUMN BALANCED HOMEPAGE LAYOUT: COURSES CENTERED, SEARCH FLUSH RIGHT ═══ */
    .homepage-main-layout-wrap {
      width: 100%;
      max-width: 100%;
      margin: 0 auto;
      padding: 16px 24px 72px;
      box-sizing: border-box;
      position: relative;
      z-index: 20;
    }

    @media (min-width: 1280px) {
      .homepage-main-layout-wrap {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(auto, 1160px) minmax(0, 1fr);
        gap: 24px;
        align-items: start;
      }
      .homepage-layout-spacer {
        display: block;
        width: 285px;
        max-width: 100%;
        min-width: 0;
        visibility: hidden;
        pointer-events: none;
      }
      .homepage-content-col {
        width: 100%;
        max-width: 1160px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
      .homepage-content-col .courses-grid,
      .courses-main-col .courses-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 360px));
        gap: 22px;
        width: 100%;
        justify-content: center;
      }
      .homepage-sidebar-col,
      .courses-sidebar-col {
        width: 285px;
        max-width: 100%;
        justify-self: end;
        margin-right: 0;
        margin-top: 14px;
        display: flex;
        flex-direction: column;
        gap: 18px;
        position: sticky;
        top: 85px;
        z-index: 25;
      }
    }

    .homepage-content-col {
      min-width: 0;
      display: flex;
      flex-direction: column;
    }
    .homepage-content-col .quick-bar-wrap {
      padding: 0;
      margin-top: 14px;
      width: 100%;
    }
    .homepage-content-col .quick-bar {
      max-width: 100%;
      width: 100%;
    }
    .homepage-content-col .hero-cta-action-wrap {
      margin-top: 24px;
      margin-bottom: 8px;
      width: 100%;
    }
    .courses-sub-section {
      width: 100%;
      padding-top: 28px;
      scroll-margin-top: 90px;
    }
    .courses-sub-section .sec-header {
      margin-bottom: 24px;
      text-align: center;
    }
    .courses-sub-section .sec-title {
      font-size: clamp(24px, 2.6vw, 34px);
    }
    .homepage-sidebar-col,
    .courses-sidebar-col {
      display: flex;
      flex-direction: column;
      gap: 18px;
      position: sticky;
      top: 85px;
      margin-top: 14px;
      z-index: 25;
    }
    .kb-sidebar-box {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-radius: 14px;
      padding: 18px 20px;
      box-shadow: 0 4px 16px rgba(11,66,161,0.06);
    }
    .kb-sidebar-title {
      font-size: 16px;
      font-weight: 800;
      color: #052466;
      margin: 0 0 14px;
      padding-bottom: 8px;
      border-bottom: 2px solid #F1F5F9;
    }
    .kb-search-input-wrap {
      position: relative;
      display: flex;
      align-items: center;
    }
    .kb-search-field {
      width: 100%;
      padding: 10px 38px 10px 14px;
      border: 1.5px solid #CBD5E1;
      border-radius: 8px;
      font-size: 13.5px;
      color: #0F172A;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
      background: #FFFFFF;
    }
    .kb-search-field:focus {
      border-color: #0B42A1;
      box-shadow: 0 0 0 3px rgba(11,66,161,0.12);
    }
    .kb-search-btn {
      position: absolute;
      right: 6px;
      background: none;
      border: none;
      cursor: pointer;
      color: #94A3B8;
      font-size: 17px;
      padding: 6px 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: color 0.2s;
    }
    .kb-search-btn:hover {
      color: #FF5B00;
    }
    .kb-sidebar-cats {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .kb-cat-row {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13.5px;
      font-weight: 600;
      color: #334155;
      text-decoration: none;
      transition: all 0.15s ease;
      padding: 2px 0;
    }
    .kb-cat-row:hover {
      color: #FF5B00;
      transform: translateX(3px);
    }
    .kb-radio-dot {
      width: 16px;
      height: 16px;
      border: 2px solid #CBD5E1;
      border-radius: 50%;
      display: inline-block;
      flex-shrink: 0;
      transition: all 0.15s ease;
      position: relative;
    }
    .kb-cat-row.active .kb-radio-dot {
      border-color: #0B42A1;
      background: radial-gradient(circle, #0B42A1 40%, transparent 45%);
    }
    .kb-featured-stack {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .kb-featured-card {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-left: 6px solid #0B42A1;
      border-radius: 10px;
      padding: 14px 16px;
      text-decoration: none;
      display: block;
      box-shadow: 0 4px 14px rgba(11,66,161,0.06);
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-left-color 0.2s ease;
    }
    .kb-featured-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(11,66,161,0.12);
      border-left-color: #FF5B00;
    }
    .kb-featured-title {
      font-size: 13.5px;
      font-weight: 800;
      color: #052466;
      line-height: 1.45;
      margin: 0;
      transition: color 0.15s ease;
    }
    .kb-featured-card:hover .kb-featured-title {
      color: #FF5B00;
    }

    /* Live Search Dropdown */
    .kb-search-dropdown {
      position: absolute;
      top: calc(100% + 8px);
      left: 0;
      right: 0;
      background: #FFFFFF;
      border: 1.5px solid #CBD5E1;
      border-radius: 12px;
      box-shadow: 0 16px 40px rgba(11, 66, 161, 0.22);
      z-index: 1000;
      max-height: 420px;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      animation: kbDropdownFadeIn 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    }
    @keyframes kbDropdownFadeIn {
      from { opacity: 0; transform: translateY(-6px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .kb-dropdown-header {
      padding: 10px 14px 6px;
      font-size: 11px;
      font-weight: 800;
      color: #64748B;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      border-bottom: 1px solid #F1F5F9;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .kb-dropdown-item {
      padding: 12px 14px;
      border-bottom: 1px solid #F1F5F9;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      gap: 4px;
      transition: background 0.15s ease;
      cursor: pointer;
    }
    .kb-dropdown-item:last-child {
      border-bottom: none;
    }
    .kb-dropdown-item:hover, .kb-dropdown-item:focus {
      background: #EFF6FF;
      outline: none;
    }
    .kb-dropdown-item-title {
      font-size: 13px;
      font-weight: 700;
      color: #052466;
      line-height: 1.4;
      margin: 0;
      transition: color 0.15s;
    }
    .kb-dropdown-item:hover .kb-dropdown-item-title {
      color: #FF5B00;
    }
    .kb-dropdown-item-meta {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 11px;
      color: #94A3B8;
    }
    .kb-dropdown-item-badge {
      display: inline-block;
      padding: 2px 7px;
      border-radius: 4px;
      background: #E0E7FF;
      color: #3730A3;
      font-weight: 700;
      font-size: 10.5px;
    }
    .kb-dropdown-viewmore {
      padding: 11px 14px;
      background: #F8FAFC;
      border-top: 1.5px solid #E2E8F0;
      text-align: center;
      font-size: 13px;
      font-weight: 800;
      color: #0B42A1;
      text-decoration: none;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: all 0.2s ease;
      border-radius: 0 0 10px 10px;
    }
    .kb-dropdown-viewmore:hover {
      background: #EFF6FF;
      color: #FF5B00;
    }
    .kb-dropdown-empty {
      padding: 16px 14px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
      font-weight: 600;
    }
    .kb-dropdown-loading {
      padding: 16px 14px;
      text-align: center;
      font-size: 13px;
      color: #0B42A1;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    /* Stack View More Button */
    .kb-stack-viewmore-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 11px 16px;
      background: #EFF6FF;
      border: 1.5px solid #BFDBFE;
      border-radius: 10px;
      font-size: 13px;
      font-weight: 800;
      color: #0B42A1;
      text-decoration: none;
      transition: all 0.2s ease;
      text-align: center;
      width: 100%;
      box-shadow: 0 2px 8px rgba(11,66,161,0.06);
      margin-top: 4px;
    }
    .kb-stack-viewmore-btn:hover {
      background: #0B42A1;
      color: #FFFFFF;
      border-color: #0B42A1;
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(11,66,161,0.18);
    }
    @media (max-width: 1279px) {
      .homepage-main-layout-wrap {
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 16px 16px 48px;
        gap: 32px;
      }
      .homepage-layout-spacer {
        display: none !important;
      }
      .homepage-content-col {
        width: 100%;
        max-width: 1040px;
        margin: 0 auto;
      }
      .homepage-sidebar-col,
      .courses-sidebar-col {
        width: 100%;
        max-width: 1040px;
        margin-top: 36px;
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
      }
      .homepage-content-col .courses-grid,
      .courses-main-col .courses-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
      }
    }
    @media (max-width: 768px) {
      .homepage-sidebar-col,
      .courses-sidebar-col {
        display: flex;
        flex-direction: column;
      }
      .homepage-content-col .courses-grid,
      .courses-main-col .courses-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
      }
    }

    /* Teachers Grid with 3D Depth */
    .teachers-grid { 
      display: flex; 
      flex-wrap: wrap; 
      justify-content: center; 
      gap: 24px; 
      perspective: 1200px;
    }
    .teacher-card {
      position: relative;
      flex: 1 1 240px;
      max-width: 280px;
      background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
      border: 1px solid var(--border); border-radius: 16px;
      padding: 24px 16px; text-align: center;
      box-shadow: var(--shadow);
      transition: transform 0.18s cubic-bezier(0.2,0.8,0.2,1), box-shadow 0.28s ease;
      transform-style: preserve-3d; will-change: transform;
    }
    .teacher-card .card-3d-glare {
      position: absolute; inset: 0; pointer-events: none; z-index: 3; opacity: 0;
      background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.42) 0%, rgba(255,255,255,0) 65%);
      transition: opacity 0.25s ease; border-radius: inherit;
    }
    .teacher-card.is-tilting .card-3d-glare { opacity: 1; }
    .teacher-card:hover { box-shadow: 0 22px 50px rgba(11,66,161,0.22); }
    .teacher-card.featured-teacher-card {
      order: 0;
      background: linear-gradient(135deg, #FFFDF0 0%, #FFF8E7 100%) !important;
      border: 2.5px solid #F59E0B !important;
      box-shadow: 0 12px 35px rgba(245, 158, 11, 0.4) !important;
      transform: translateY(-4px);
    }
    .featured-teacher-badge {
      position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
      background: linear-gradient(135deg, #D97706, #FF5B00); color: #FFF;
      font-weight: 900; font-size: 11px; padding: 5px 16px; border-radius: 20px;
      text-transform: uppercase; letter-spacing: 0.5px;
      box-shadow: 0 4px 14px rgba(217, 119, 6, 0.5); white-space: nowrap; border: 2px solid #FFF;
    }
    .teacher-avatar-wrap {
      position: relative; display: inline-block; margin-top: 4px;
    }
    .featured-teacher-card .teacher-avatar-wrap {
      margin-top: 10px;
    }
    .teacher-avatar-img {
      width: 110px; height: 110px; border-radius: 50%; object-fit: cover;
      border: 3px solid #FF5B00; margin-bottom: 12px;
      transition: transform 0.25s ease;
    }
    .featured-teacher-card .teacher-avatar-img {
      border: 4px solid #F59E0B;
      box-shadow: 0 8px 24px rgba(245, 158, 11, 0.5);
    }
    .teacher-name { font-size: 16px; font-weight: 800; color: var(--blue-dark); margin: 10px 0 6px 0; }
    .featured-teacher-card .teacher-name { color: #B45309; }
    .teacher-cert { display: inline-block; background: #EFF6FF; color: var(--blue-primary); font-size: 11px; font-weight: 800; padding: 4px 10px; border-radius: 4px; }
    .featured-teacher-card .teacher-cert { background: #FEF3C7; color: #92400E; border: 1px solid #FCD34D; }
    .teacher-exp { font-size: 12px; color: var(--text-muted); margin-top: 8px; font-weight: 600; }
    .featured-teacher-card .teacher-exp { color: #78350F; }
    .btn-teacher-view-detail {
      width: 100%; margin-top: 14px; padding: 10px 16px;
      background: linear-gradient(135deg, #0B42A1 0%, #052466 100%);
      color: #FFFFFF !important; font-weight: 800; font-size: 13px;
      border: none; border-radius: 8px; cursor: pointer;
      box-shadow: 0 4px 12px rgba(11,66,161,0.25); transition: all 0.2s ease;
    }
    .featured-teacher-card .btn-teacher-view-detail {
      background: linear-gradient(135deg, #FF5B00 0%, #D97706 100%);
      box-shadow: 0 4px 14px rgba(255,91,0,0.35);
    }
    .teacher-row-break {
      display: none;
    }
    @media (min-width: 992px) {
      .teacher-row-break {
        display: block !important;
        flex-basis: 100% !important;
        width: 100% !important;
        height: 0 !important;
        margin: 0 !important;
      }
    }
    .contact-action:hover { transform: translateY(-2px); }

    /* ── MOBILE RESPONSIVE MEDIA QUERIES ── */
    @media (max-width: 992px) {
      .pub-nav { padding: 0 20px; height: 64px; }
      .pub-nav .nav-center { display: none; }
      .hero-slider { height: 520px; }
      .slide-content { padding: 0 24px; }
      .slide-text { max-width: 520px; }
      .slide-overlay {
        background: linear-gradient(90deg, rgba(3, 16, 46, 0.90) 0%, rgba(5, 26, 74, 0.80) 55%, rgba(5, 26, 74, 0.40) 85%, rgba(2, 12, 36, 0.25) 100%);
      }
      .quick-bar-wrap { padding: 0 16px; margin-top: 14px; }
      .quick-bar { flex-direction: column; }
      .quick-action { border-right: none; border-bottom: 1px solid var(--border); }
      .courses-grid { grid-template-columns: 1fr; }
      .section-wrap { padding: 40px 16px; }
    }
    @media (max-width: 768px) {
      body { padding-top: 88px !important; }
      .marquee-bar { font-size: 11px; padding: 4px 0; }
      .pub-nav { top: 26px !important; height: 58px !important; min-height: 58px !important; padding: 0 14px !important; flex-wrap: nowrap !important; justify-content: space-between !important; }
      .pub-nav .brand { font-size: 16px; gap: 8px; }
      .pub-nav .brand img { width: 34px !important; height: 34px !important; }
      .pub-nav .nav-right { gap: 6px; }
      .btn-nav-student { padding: 6px 10px; font-size: 11px; min-height: 38px; border-radius: 6px; }
      .btn-nav-login { padding: 6px 10px; font-size: 11px; min-height: 38px; border-radius: 6px; }
      .btn-nav-register { padding: 6px 12px; font-size: 11px; min-height: 38px; border-radius: 6px; }
      .hero-slider { height: 460px; min-height: 420px; }
      .slide-content { justify-content: center; text-align: center; padding: 0 14px; }
      .slide-text { max-width: 100%; text-align: center; }
      .slide-text h1 { font-size: clamp(22px, 6.2vw, 32px); line-height: 1.25; }
      .slide-text p { font-size: 13.5px; line-height: 1.5; }
      .slide-btns { flex-direction: column; gap: 8px; justify-content: center; width: 100%; }
      .slide-btns .btn, .hero-btn-primary, .hero-btn-secondary { width: 100%; text-align: center; justify-content: center; min-height: 44px; padding: 10px 16px; font-size: 14px; }
      .hero-dots { left: 50%; transform: translateX(-50%); bottom: 14px; }
      .slide-overlay {
        background: linear-gradient(180deg, rgba(3, 16, 46, 0.78) 0%, rgba(5, 26, 74, 0.65) 50%, rgba(2, 12, 36, 0.88) 100%);
      }
      .slide-bg { background-position: center 20% !important; }
      .quick-bar-wrap { padding: 0 14px; margin-top: 12px; }
      .quick-bar { flex-direction: column; border-radius: 12px; }
      .quick-action-btn { margin: 6px 0 !important; width: 100% !important; min-height: 52px !important; }
      .quick-action-btn div { white-space: normal !important; overflow-wrap: break-word !important; }
      .quick-action { padding: 12px 14px; border-right: none; border-bottom: 1px solid var(--border); }
      .quick-action:last-child { border-bottom: none; }
      .courses-grid { 
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important; 
        gap: 8px !important; 
      }
      .course-glass-card { 
        width: 100% !important; 
        max-width: 100% !important; 
        margin: 0 !important; 
        border-radius: 10px !important;
        box-shadow: 0 4px 12px rgba(11,66,161,0.06) !important;
      }
      .course-thumb-box { 
        aspect-ratio: 16 / 9 !important; 
        height: auto !important; 
        max-height: 90px !important; 
      }
      .course-thumb-badges {
        top: 4px !important;
        left: 4px !important;
        right: 4px !important;
        gap: 3px !important;
        flex-wrap: wrap !important;
      }
      .course-tag {
        font-size: 8px !important;
        padding: 2px 5px !important;
        border-radius: 4px !important;
        line-height: 1.1 !important;
      }
      .course-discount-pill {
        font-size: 8px !important;
        padding: 2px 4px !important;
        border-radius: 4px !important;
        line-height: 1.1 !important;
      }
      .course-content-box { 
        padding: 7px 6px 8px !important; 
        display: flex !important;
        flex-direction: column !important;
      }
      .course-title { 
        font-size: 11px !important; 
        line-height: 1.25 !important;
        margin-bottom: 3px !important; 
        display: -webkit-box !important;
        -webkit-line-clamp: 2 !important;
        -webkit-box-orient: vertical !important;
        overflow: hidden !important;
      }
      .course-desc {
        display: none !important;
      }
      .course-pricing-row { 
        display: flex !important; 
        flex-direction: column !important;
        align-items: flex-start !important; 
        padding: 3px 0 4px !important; 
        margin-bottom: 5px !important;
        gap: 1px !important; 
      }
      .course-price-label {
        font-size: 8.5px !important;
        line-height: 1 !important;
      }
      .course-price-values {
        display: flex !important;
        align-items: baseline !important;
        gap: 4px !important;
      }
      .course-price-struck {
        font-size: 9px !important;
      }
      .course-price-final { 
        font-size: 11.5px !important; 
        color: #FF5B00 !important; 
        font-weight: 900 !important;
      }
      .course-btn-group { 
        display: flex !important; 
        gap: 4px !important; 
        width: 100% !important; 
      }
      .course-btn-detail { 
        flex: 1 !important; 
        min-height: 26px !important; 
        padding: 3px 4px !important; 
        font-size: 9.5px !important; 
        border-radius: 5px !important;
        white-space: nowrap !important;
      }
      .course-btn-register { 
        flex: 1 !important; 
        min-height: 26px !important; 
        padding: 3px 4px !important; 
        font-size: 9.5px !important; 
        border-radius: 5px !important;
        white-space: nowrap !important;
      }

      /* Teachers Grid: 4x compact on mobile */
      .teachers-grid { 
        display: grid !important;
        grid-template-columns: repeat(6, minmax(0, 1fr)) !important;
        gap: 6px !important; 
      }
      .teacher-card { 
        grid-column: span 3 !important;
        width: 100% !important; 
        max-width: 100% !important; 
        padding: 8px 6px !important;
        border-radius: 10px !important;
        box-shadow: 0 3px 10px rgba(11,66,161,0.06) !important;
      }
      /* Top 3 teachers: Row 1 has 3 teachers with Ms. Diểm Nhi centered */
      .teacher-card:nth-child(1),
      .teacher-card:nth-child(2),
      .teacher-card:nth-child(3) {
        grid-column: span 2 !important;
        padding: 7px 4px !important;
      }
      .teacher-card.featured-teacher-card {
        transform: translateY(-2px) !important;
      }
      .featured-teacher-badge {
        font-size: 7.5px !important;
        padding: 2px 7px !important;
        top: -8px !important;
      }
      .teacher-avatar-wrap {
        margin-top: 2px !important;
      }
      .featured-teacher-card .teacher-avatar-wrap {
        margin-top: 5px !important;
      }
      .teacher-avatar-img {
        width: 50px !important;
        height: 50px !important;
        border-width: 2px !important;
        margin-bottom: 4px !important;
      }
      .teacher-card:nth-child(1) .teacher-avatar-img,
      .teacher-card:nth-child(2) .teacher-avatar-img,
      .teacher-card:nth-child(3) .teacher-avatar-img {
        width: 44px !important;
        height: 44px !important;
      }
      .teacher-name { 
        font-size: 11px !important; 
        margin: 3px 0 2px 0 !important;
        line-height: 1.2 !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
      }
      .teacher-cert { 
        font-size: 8px !important; 
        padding: 2px 4px !important;
        border-radius: 3px !important;
        line-height: 1.1 !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        display: block !important;
      }
      .teacher-exp { 
        font-size: 8.5px !important; 
        margin-top: 3px !important;
        line-height: 1.1 !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
      }
      .btn-teacher-view-detail {
        margin-top: 6px !important;
        padding: 4px 6px !important;
        font-size: 9.5px !important;
        min-height: 24px !important;
        border-radius: 5px !important;
      }

      .contact-grid { grid-template-columns: 1fr !important; gap: 14px !important; }
      .footer-grid { grid-template-columns: 1fr !important; gap: 18px !important; text-align: center; }
      .footer-inner { grid-template-columns: 1fr; gap: 20px; }
      .footer { padding: 24px 14px; }
      .section-wrap { padding: 20px 10px !important; margin: 16px auto !important; border-radius: 16px !important; }
      .sec-header { margin-bottom: 16px !important; }
      .sec-title { font-size: 18px !important; }
      .sec-sub { font-size: 11.5px !important; margin-top: 4px !important; }
      .course-filter-bar { gap: 4px !important; margin-bottom: 12px !important; }
      .course-filter-btn { font-size: 10px !important; padding: 4px 8px !important; border-radius: 6px !important; }
      .float-mascot-widget { display: none; }
    }

    /* Footer */
    .footer { background: var(--blue-dark); padding: 48px; color: rgba(255,255,255,0.8); }
    .footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }

    /* Spline-Style 3D Floating Mascot Widget */
    .float-mascot-widget {
      position: fixed; bottom: 32px; right: 32px; z-index: 500;
      cursor: pointer; display: flex; align-items: center; gap: 12px;
      background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
      padding: 10px 18px 10px 14px; border-radius: 30px;
      box-shadow: 0 12px 36px rgba(11,66,161,0.22); border: 2px solid #BFDBFE;
      transition: all 0.28s cubic-bezier(0.4,0,0.2,1);
    }
    .float-mascot-widget:hover { transform: scale(1.06) translateY(-4px); box-shadow: 0 20px 48px rgba(11,66,161,0.3); }
    .mascot-icon-3d { font-size: 38px; line-height: 1; animation: float-fish 3s ease-in-out infinite; }
    @keyframes float-fish { 0%,100%{transform:translateY(0) rotate(-4deg)} 50%{transform:translateY(-6px) rotate(4deg)} }

    /* Sticky Bottom CTA for Mobile */
    .mobile-sticky-cta { display: none; }
    @media (max-width: 768px) {
      .mobile-sticky-cta {
        display: block;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        width: 100%;
        background: rgba(5, 36, 102, 0.96);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-top: 1px solid rgba(255, 255, 255, 0.18);
        box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.28);
        padding: 10px 16px;
        padding-bottom: max(10px, env(safe-area-inset-bottom));
        z-index: 9999;
        transform: translateY(115%);
        transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1);
      }
      .mobile-sticky-cta.is-visible {
        transform: translateY(0);
      }
      .mobile-sticky-cta-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        max-width: 500px;
        margin: 0 auto;
      }
      .mobile-sticky-cta-text {
        display: flex;
        flex-direction: column;
      }
      .sticky-tag {
        font-size: 10.5px;
        font-weight: 800;
        color: #FDBA74;
        text-transform: uppercase;
        letter-spacing: 0.5px;
      }
      .sticky-title {
        font-size: 13.5px;
        font-weight: 800;
        color: #FFFFFF;
        white-space: nowrap;
      }
      .mobile-sticky-cta-btn {
        background: #FF5B00;
        color: #FFFFFF !important;
        font-size: 13.5px;
        font-weight: 800;
        padding: 11px 20px;
        border-radius: 999px;
        text-decoration: none;
        white-space: nowrap;
        box-shadow: 0 4px 16px rgba(255, 91, 0, 0.45);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: transform 0.2s ease, background 0.2s ease;
      }
      .mobile-sticky-cta-btn:active {
        transform: scale(0.97);
        background: #E05100;
      }
    }

    @media(max-width:1180px), (pointer:coarse) { .site-edge,.site-scroll-indicator { display:none; } }
    @media(pointer:coarse) { .site-fish-cursor,.site-cursor-arrow { display:none; } }
    @media (max-width: 1024px) and (min-width: 769px) { .teachers-grid { grid-template-columns: repeat(3,1fr); } }
    @media (hover: none) {
      .quick-action-btn:hover,
      .course-glass-card:hover,
      .teacher-card:hover,
      .hero-register-cta:hover,
      .btn-nav-login:hover,
      .btn-nav-register:hover {
        transform: none !important;
        box-shadow: 0 10px 30px rgba(11,66,161,0.08) !important;
      }
      .quick-action-btn:active,
      .course-glass-card:active,
      .teacher-card:active,
      .hero-register-cta:active {
        opacity: 0.9 !important;
        transform: scale(0.98) !important;
      }
    }
    @media (prefers-reduced-motion: reduce) { *,*::before,*::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; scroll-behavior:auto !important; transition-duration:.01ms !important; } .hero-particles{display:none} }