*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    --blue: #1A4FAB;
    --blue-dark: #0F3075;
    --blue-light: #E8F0FB;
    --green: #3DB551;
    --green-dark: #2A8A3A;
    --orange: #F5A623;
    --purple: #7B2D8B;
    --pink: #D92B6B;
    --red: #E53935;
    --teal: #00897B;
    --yellow: #FFC107;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-600: #6C757D;
    --gray-800: #343A40;
    --white: #FFFFFF;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --radius: 16px;
    --radius-sm: 10px;
  }
  html { scroll-behavior: smooth; }
  body { font-family: 'Nunito', sans-serif; color: var(--gray-800); background: var(--white); overflow-x: hidden; }

  /* NAV */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.6rem 2rem; gap: 1rem;
  }
  .nav-logo img { height: 52px; width: auto; }
  .nav-links { display: flex; gap: 0.2rem; align-items: center; }
  .nav-links a {
    text-decoration: none; font-weight: 700; font-size: 0.95rem; color: var(--gray-800);
    padding: 0.5rem 1rem; border-radius: 8px; transition: all 0.2s;
  }
  .nav-links a:hover { background: var(--blue-light); color: var(--blue); }
  .nav-cta {
    background: var(--green); color: var(--white) !important;
    border-radius: 50px !important; padding: 0.55rem 1.4rem !important;
    font-weight: 800 !important;
  }
  .nav-cta:hover { background: var(--green-dark) !important; color: var(--white) !important; }
  .hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
  .hamburger span { display: block; width: 24px; height: 2px; background: var(--gray-800); margin: 5px 0; border-radius: 2px; transition: all 0.3s; }

  /* HERO */
  .hero {
    min-height: 100vh; display: flex; align-items: center;
    background: linear-gradient(135deg, #EBF2FF 0%, #FFF8E1 50%, #E8F5E9 100%);
    padding: 7rem 2rem 4rem; position: relative; overflow: hidden;
  }
  .hero::before {
    content: ''; position: absolute; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(26,79,171,0.08) 0%, transparent 70%);
    top: -100px; right: -100px; border-radius: 50%;
  }
  .hero::after {
    content: ''; position: absolute; width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(61,181,81,0.1) 0%, transparent 70%);
    bottom: -50px; left: -50px; border-radius: 50%;
  }
  .hero-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; position: relative; z-index: 1; }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--white); border: 2px solid var(--blue-light);
    border-radius: 50px; padding: 0.4rem 1rem 0.4rem 0.6rem;
    font-size: 0.85rem; font-weight: 700; color: var(--blue); margin-bottom: 1.2rem;
    box-shadow: 0 2px 12px rgba(26,79,171,0.1);
  }
  .hero-badge-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.4);opacity:0.7} }
  .hero h1 {
    font-family: 'Poppins', sans-serif; font-size: 40px;
    font-weight: 800; line-height: 1.15; color: var(--blue-dark); margin-bottom: 1rem;
  }
  .hero h1 span { color: var(--green); }
  .hero-sub { font-size: 1.1rem; color:#2F2F2F; line-height: 1.7; margin-bottom: 1.5rem; font-weight: 600; }
  .hero-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
  .hero-chip {
    background: var(--white); border: 1.5px solid var(--gray-300);
    border-radius: 50px; padding: 0.4rem 1rem;
    font-size: 0.85rem; font-weight: 700; color: var(--gray-800);
    display: flex; align-items: center; gap: 6px;
  }
  .hero-chip-icon { font-size: 14px; }
  .hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--blue); color: var(--white);
    text-decoration: none; font-weight: 800; font-size: 1rem;
    padding: 0.85rem 2rem; border-radius: 50px;
    box-shadow: 0 4px 20px rgba(26,79,171,0.3); transition: all 0.2s;
  }
  .btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 6px 28px rgba(26,79,171,0.4); }
  .btn-wa {
    display: inline-flex; align-items: center; gap: 8px;
    background: #25D366; color: var(--white);
    text-decoration: none; font-weight: 800; font-size: 1rem;
    padding: 0.85rem 2rem; border-radius: 50px;
    box-shadow: 0 4px 20px rgba(37,211,102,0.3); transition: all 0.2s;
  }
  .btn-wa:hover { background: #1DA851; transform: translateY(-2px); }
  .hero-timing {
    margin-top: 1.5rem; display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem; color: #2f2f2f; font-weight: 700;
  }
  .hero-timing strong { color: var(--blue-dark); font-size: 1rem; }
  .hero-visual { display: flex; justify-content: center; align-items: center; position: relative; }
  .hero-card-stack { position: relative; width: 100%; max-width: 420px; }
  .hero-main-card {
    background: var(--white); border-radius: 24px; padding: 2rem;
    box-shadow: var(--shadow-lg); position: relative; z-index: 2;
    border: 1px solid var(--gray-200);
  }
  .class-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .class-badge {
    border-radius: 16px; padding: 1.2rem 1rem; text-align: center;
    font-weight: 800; font-size: 0.9rem;
  }
  .cb-blue { background: var(--blue-light); color: var(--blue-dark); }
  .cb-green { background: #E8F5E9; color: var(--green-dark); }
  .cb-orange { background: #FFF8E1; color: #E65100; }
  .cb-purple { background: #F3E5F5; color: var(--purple); }
  .cb-big { font-size: 1.5rem; font-weight: 900; display: block; margin-bottom: 4px; }
  .float-card {
    position: absolute; background: var(--white); border-radius: 14px;
    padding: 0.8rem 1.1rem; box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 10px;
    font-size: 0.82rem; font-weight: 700; white-space: nowrap;
    border: 1px solid var(--gray-200);
  }
  .float-card-icon { font-size: 1.3rem; }
  .fc-1 { top: -20px; right: -30px; color: var(--green-dark); }
  .fc-2 { bottom: -20px; left: -30px; color: var(--blue); }

  /* TRUST BAR */
  .trust-bar { background: var(--blue-dark); padding: 1.2rem 2rem; }
  .trust-bar-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: center; flex-wrap: wrap; gap: 2rem; }
  .trust-item { display: flex; align-items: center; gap: 10px; color: var(--white); font-weight: 700; font-size: 0.9rem; }
  .trust-icon { font-size: 1.2rem; }

  /* SECTION WRAPPER */
  section { padding: 5rem 2rem; }
  .container { max-width: 1200px; margin: 0 auto; }
  .section-label { display: inline-block; background: var(--blue-light); color: var(--blue); font-weight: 800; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.3rem 0.9rem; border-radius: 50px; margin-bottom: 0.8rem; }
  .section-title { font-family: 'Poppins', sans-serif; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--blue-dark); margin-bottom: 0.8rem; line-height: 1.2; }
  .section-sub { font-size: 1rem; color: var(--gray-600); max-width: 540px; line-height: 1.7; font-weight: 600; }
  .text-center { text-align: center; }
  .text-center .section-sub { margin: 0 auto; }

  /* STATS */
  .stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 3rem; }
  .stat-card { background: var(--white); border-radius: var(--radius); padding: 1.8rem 1.5rem; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--gray-200); transition: transform 0.2s; }
  .stat-card:hover { transform: translateY(-4px); }
  .stat-num { font-family: 'Poppins', sans-serif; font-size: 2.2rem; font-weight: 800; color: var(--blue); display: block; }
  .stat-label { font-size: 0.85rem; font-weight: 700; color: var(--gray-600); margin-top: 4px; }

  /* ABOUT */
  .about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
  .about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
  .about-feat { display: flex; align-items: flex-start; gap: 10px; background: var(--gray-100); border-radius: var(--radius-sm); padding: 1rem; }
  .about-feat-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
  .about-feat-text { font-size: 0.9rem; font-weight: 700; color: var(--gray-800); line-height: 1.4; }
  .about-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .av-card { border-radius: var(--radius); padding: 1.8rem 1.5rem; text-align: center; }
  .av-blue { background: var(--blue); color: var(--white); }
  .av-green { background: var(--green); color: var(--white); }
  .av-orange { background: var(--orange); color: var(--white); }
  .av-purple { background: var(--purple); color: var(--white); }
  .av-num { font-family: 'Poppins', sans-serif; font-size: 2rem; font-weight: 900; display: block; }
  .av-lbl { font-size: 0.8rem; font-weight: 700; margin-top: 4px; opacity: 0.9; }

  /* COURSES */
  .courses-bg { background: var(--gray-100); }
  .courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
  .course-card {
    background: var(--white); border-radius: var(--radius); padding: 1.8rem 1.5rem;
    box-shadow: var(--shadow); border: 1px solid var(--gray-200);
    transition: all 0.25s; position: relative; overflow: hidden;
  }
  .course-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
  .cc-blue::before { background: var(--blue); }
  .cc-green::before { background: var(--green); }
  .cc-orange::before { background: var(--orange); }
  .cc-purple::before { background: var(--purple); }
  .cc-pink::before { background: var(--pink); }
  .cc-teal::before { background: var(--teal); }
  .course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
  .course-emoji { font-size: 2rem; margin-bottom: 1rem; display: block; }
  .course-title { font-family: 'Poppins', sans-serif; font-size: 1.05rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 0.5rem; }
  .course-level { display: inline-block; font-size: 0.75rem; font-weight: 800; padding: 0.2rem 0.7rem; border-radius: 50px; margin-bottom: 0.8rem; }
  .cl-blue { background: var(--blue-light); color: var(--blue); }
  .cl-green { background: #E8F5E9; color: var(--green-dark); }
  .cl-orange { background: #FFF8E1; color: #E65100; }
  .cl-purple { background: #F3E5F5; color: var(--purple); }
  .cl-pink { background: #FCE4EC; color: #C2185B; }
  .cl-teal { background: #E0F2F1; color: var(--teal); }
  .course-desc { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; font-weight: 600; }
  .course-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1rem; }
  .ctag { font-size: 0.75rem; font-weight: 700; background: var(--gray-100); color: var(--gray-600); padding: 0.2rem 0.6rem; border-radius: 50px; }

  /* APPROACH */
  .approach-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
  .approach-card { text-align: center; padding: 2rem 1.5rem; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--gray-200); transition: transform 0.2s; }
  .approach-card:hover { transform: translateY(-4px); }
  .approach-icon { font-size: 2.5rem; display: block; margin-bottom: 1rem; }
  .approach-title { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 1rem; color: var(--blue-dark); margin-bottom: 0.5rem; }
  .approach-desc { font-size: 0.87rem; color: var(--gray-600); line-height: 1.6; font-weight: 600; }

  /* TESTIMONIALS */
  .testimonials-bg { background: linear-gradient(135deg, var(--blue-dark) 0%, #1A3A8F 100%); }
  .testimonials-bg .section-label { background: rgba(255,255,255,0.15); color: var(--white); }
  .testimonials-bg .section-title { color: var(--white); }
  .testimonials-bg .section-sub { color: rgba(255,255,255,0.75); }
  .testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem; }
  .testi-card { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius); padding: 1.8rem; backdrop-filter: blur(4px); }
  .testi-stars { color: var(--yellow); font-size: 1rem; margin-bottom: 0.8rem; letter-spacing: 2px; }
  .testi-text { font-size: 0.9rem; color: rgba(255,255,255,0.9); line-height: 1.7; font-weight: 600; margin-bottom: 1.2rem; font-style: italic; }
  .testi-author { display: flex; align-items: center; gap: 10px; }
  .testi-avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--blue-light); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1rem; color: var(--blue); flex-shrink: 0; }
  .testi-name { font-weight: 800; color: var(--white); font-size: 0.9rem; }
  .testi-role { font-size: 0.78rem; color: rgba(255,255,255,0.65); font-weight: 600; }
  .google-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 2rem; color: rgba(255,255,255,0.8); text-decoration: none; font-weight: 700; font-size: 0.9rem; border: 1px solid rgba(255,255,255,0.3); padding: 0.6rem 1.2rem; border-radius: 50px; transition: all 0.2s; }
  .google-link:hover { background: rgba(255,255,255,0.15); color: var(--white); }

  /* FAQ */
  .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 3rem; }
  .faq-item { background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-sm); overflow: hidden; }
  .faq-q { padding: 1.1rem 1.4rem; font-weight: 700; font-size: 0.92rem; color: var(--blue-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
  .faq-q::after { content: '+'; font-size: 1.3rem; color: var(--blue); flex-shrink: 0; font-weight: 300; transition: transform 0.2s; }
  .faq-item.open .faq-q::after { transform: rotate(45deg); }
  .faq-a { padding: 0 1.4rem; max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.2s; font-size: 0.87rem; color: var(--gray-600); line-height: 1.7; font-weight: 600; }
  .faq-item.open .faq-a { max-height: 200px; padding-bottom: 1.1rem; }

  /* CONTACT */
  .contact-bg { background: var(--gray-100); }
  .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 3rem; }
  .contact-info-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 1.5rem; }
  .ci-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
  .ci-blue { background: var(--blue-light); }
  .ci-green { background: #E8F5E9; }
  .ci-orange { background: #FFF8E1; }
  .ci-label { font-size: 0.78rem; font-weight: 700; color: var(--gray-600); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
  .ci-value { font-weight: 700; color: var(--gray-800); font-size: 0.95rem; line-height: 1.5; }
  .ci-value a { color: var(--blue); text-decoration: none; }
  .contact-form-card { background: var(--white); border-radius: var(--radius); padding: 0.5rem; box-shadow: var(--shadow); border: 1px solid var(--gray-200); }
  .form-title { font-family: 'Poppins', sans-serif; font-size: 1.2rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 1.4rem; }
  .form-group { margin-bottom: 1rem; }
  .form-group label { display: block; font-size: 0.82rem; font-weight: 700; color: var(--gray-600); margin-bottom: 6px; }
  .form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 0.75rem 1rem; border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm); font-family: 'Nunito', sans-serif;
    font-size: 0.9rem; color: var(--gray-800); font-weight: 600;
    transition: border-color 0.2s; outline: none; background: var(--white);
  }
  .form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--blue); }
  .form-group textarea { resize: vertical; min-height: 90px; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
  .btn-submit { width: 100%; padding: 0.9rem; background: var(--blue); color: var(--white); font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem; border: none; border-radius: 50px; cursor: pointer; transition: all 0.2s; margin-top: 0.5rem; }
  .btn-submit:hover { background: var(--blue-dark); transform: translateY(-1px); }
  .form-success { display: none; text-align: center; padding: 2rem; }
  .form-success-icon { font-size: 3rem; margin-bottom: 0.5rem; }

  /* FOOTER */
  footer { background: var(--blue-dark); color: rgba(255,255,255,0.85); padding: 3rem 2rem 1.5rem; }
  .footer-inner { max-width: 1200px; margin: 0 auto; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 3rem; margin-bottom: 2rem; }
  .footer-brand img { height: 48px; filter: brightness(0) invert(1); margin-bottom: 1rem; }
  .footer-brand p { font-size: 0.88rem; line-height: 1.7; color: rgba(255,255,255,0.7); font-weight: 600; }
  .footer-col h4 { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 0.95rem; color: var(--white); margin-bottom: 1rem; }
  .footer-links { list-style: none; }
  .footer-links li { margin-bottom: 0.5rem; }
  .footer-links a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 0.87rem; font-weight: 600; transition: color 0.2s; }
  .footer-links a:hover { color: var(--white); }
  .footer-contact-item { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 0.8rem; font-size: 0.87rem; color: rgba(255,255,255,0.7); font-weight: 600; }
  .footer-contact-item a { color: rgba(255,255,255,0.85); text-decoration: none; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1.2rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
  .footer-bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.5); font-weight: 600; }
  .footer-areas { font-size: 0.8rem; color: rgba(255,255,255,0.5); font-weight: 600; }

  /* WA FLOAT */
  .wa-float { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 200; }
  .wa-float a {
    display: flex; align-items: center; justify-content: center;
    width: 60px; height: 60px; background: #25D366;
    border-radius: 50%; box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    text-decoration: none; font-size: 1.7rem; transition: all 0.2s;
    animation: wa-bounce 2s infinite;
  }
  .wa-float a:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.5); }
  @keyframes wa-bounce { 0%,100%{transform:scale(1)} 50%{transform:scale(1.05)} }

  /* MOBILE NAV */
  @media (max-width: 768px) {
    .hamburger { display: block; }
    .nav-links { display: none; position: fixed; top: 72px; left: 0; right: 0; background: var(--white); flex-direction: column; padding: 1rem; border-bottom: 1px solid var(--gray-200); box-shadow: var(--shadow); }
    .nav-links.open { display: flex; }
    .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
    .hero-visual { display: none; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .about-visual { order: -1; }
    .courses-grid { grid-template-columns: 1fr; }
    .approach-grid { grid-template-columns: 1fr 1fr; }
    .testi-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .trust-bar-inner { gap: 1rem; }
    .hero-actions { flex-direction: column; }
    .btn-primary, .btn-wa { width: 100%; justify-content: center; }
  }
  @media (max-width: 480px) {
    .approach-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .class-badges { grid-template-columns: 1fr 1fr; }
    nav { padding: 0.6rem 1rem; }
  }