* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
      line-height: 1.6;
      color: #333;
    }

    /* WHY LEARN SECTION */
    #why-learn {
      position: relative;
      background: linear-gradient(135deg, #0D4F4F 0%, #0D6A69 50%, #0D4F4F 100%);
      color: white;
      padding: 5rem 0;
      overflow: hidden;
      scroll-margin-top: 6rem;
    }

    .glow-orb-1 {
      pointer-events: none;
      position: absolute;
      left: -8rem;
      top: 2.5rem;
      width: 18rem;
      height: 18rem;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(184, 230, 230, 0.3) 0%, transparent 70%);
      filter: blur(60px);
      animation: float 8s ease-in-out infinite;
    }

    .glow-orb-2 {
      pointer-events: none;
      position: absolute;
      right: -8rem;
      bottom: 0;
      width: 20rem;
      height: 20rem;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(127, 191, 191, 0.3) 0%, transparent 70%);
      filter: blur(60px);
      animation: float 10s ease-in-out infinite reverse;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0) scale(1); }
      50% { transform: translateY(-20px) scale(1.05); }
    }

    .section-container {
      position: relative;
      max-width: 80rem;
      margin: 0 auto;
      padding: 0 1rem;
    }

    .section-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .section-header h2 {
      font-size: clamp(1.75rem, 4vw, 2.5rem);
      font-weight: 700;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }

    .section-header .highlight {
      color: #7FBFBF;
      position: relative;
      display: inline-block;
    }

    .section-header .highlight::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, transparent, #7FBFBF, transparent);
      border-radius: 2px;
    }

    .section-header p {
      font-size: clamp(0.875rem, 2vw, 1.125rem);
      color: rgba(255, 255, 255, 0.85);
      max-width: 42rem;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* Cards Grid */
    .cards-grid-desktop {
      display: none;
      grid-template-columns: 1fr auto 1fr auto 1fr;
      gap: 2.5rem;
      align-items: stretch;
      margin-top: 3rem;
    }

    @media (min-width: 768px) {
      .cards-grid-desktop {
        display: grid;
      }
    }

    .feature-card {
      background: rgba(255, 255, 255, 0.06);
      border-radius: 1.5rem;
      border: 1px solid rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(10px);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
      padding: 2rem 1.75rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 1rem;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
      opacity: 0;
      transition: opacity 0.4s;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(127, 191, 191, 0.4);
      box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35), 0 0 40px rgba(127, 191, 191, 0.15);
    }

    .feature-card:hover::before {
      opacity: 1;
    }

    .icon-wrapper {
      width: 4rem;
      height: 4rem;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(127, 191, 191, 0.15);
      border-radius: 1rem;
      margin-bottom: 0.5rem;
      transition: all 0.4s;
    }

    .feature-card:hover .icon-wrapper {
      background: rgba(127, 191, 191, 0.25);
      transform: scale(1.1) rotate(5deg);
    }

    .icon-wrapper svg {
      width: 2.25rem;
      height: 2.25rem;
      stroke: #B8E6E6;
      transition: stroke 0.4s;
    }

    .feature-card:hover .icon-wrapper svg {
      stroke: #7FBFBF;
    }

    .feature-card h3 {
      font-size: 0.95rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      line-height: 1.4;
    }

    .feature-card p {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.6;
      max-width: 18rem;
    }

    .separator {
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .separator-line {
      height: 5rem;
      width: 1px;
      background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.3), transparent);
      position: relative;
    }

    .separator-line::before,
    .separator-line::after {
      content: '';
      position: absolute;
      left: 50%;
      width: 6px;
      height: 6px;
      background: rgba(255, 255, 255, 0.4);
      border-radius: 50%;
      transform: translateX(-50%);
    }

    .separator-line::before { top: 0; }
    .separator-line::after { bottom: 0; }

    /* Mobile Cards */
    .cards-grid-mobile {
      display: grid;
      grid-template-columns: 1fr;
      gap: 2rem;
      max-width: 28rem;
      margin: 2.5rem auto 0;
    }

    @media (min-width: 768px) {
      .cards-grid-mobile {
        display: none;
      }
    }

    /* CATEGORIES SECTION */
    #categories {
      padding: 5rem 0;
      background: linear-gradient(to bottom, #F9F9F9, #F5F5F5);
      scroll-margin-top: 6rem;
    }

    .categories-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .categories-header h2 {
      font-size: clamp(1.75rem, 4vw, 2.25rem);
      font-weight: 600;
      color: #2D2D2D;
      margin-bottom: 0.75rem;
      letter-spacing: -0.01em;
    }

    .categories-header p {
      font-size: clamp(0.875rem, 2vw, 1rem);
      color: #6B6B6B;
    }

    #categories-grid {
      display: grid;
      gap: 1.5rem;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      max-width: 1200px;
      margin: 0 auto;
    }

    @media (min-width: 1024px) {
      #categories-grid {
        grid-template-columns: repeat(5, 1fr);
      }
    }

    .category-card {
      background: white;
      border-radius: 1.25rem;
      padding: 2rem 1.5rem;
      text-align: center;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid rgba(0, 0, 0, 0.04);
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }

    .category-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #0D4F4F, #7FBFBF, #0D4F4F);
      transform: scaleX(0);
      transition: transform 0.4s;
    }

    .category-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 40px rgba(13, 79, 79, 0.12);
      border-color: rgba(127, 191, 191, 0.3);
    }

    .category-card:hover::before {
      transform: scaleX(1);
    }

    /* CTA SECTION */
    #blog {
      padding: 5rem 0;
      background: white;
      scroll-margin-top: 6rem;
    }

    .cta-grid {
      display: grid;
      gap: 3rem;
      align-items: center;
      max-width: 1200px;
      margin: 0 auto;
    }

    @media (min-width: 1024px) {
      .cta-grid {
        grid-template-columns: 1.1fr 1fr;
      }
    }

    .visual-panel {
      position: relative;
      background: linear-gradient(135deg, #F9F9F9, #F2F2F2);
      border-radius: 2rem;
      padding: 3rem;
      overflow: hidden;
      min-height: 360px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .shape-1 {
      position: absolute;
      left: -2.5rem;
      bottom: -2.5rem;
      width: 10rem;
      height: 10rem;
      background: linear-gradient(135deg, #B8E6E6, #7FBFBF);
      border-radius: 50%;
      opacity: 0.8;
      animation: pulse 4s ease-in-out infinite;
    }

    .shape-2 {
      position: absolute;
      right: -1.5rem;
      top: -1.5rem;
      width: 8rem;
      height: 8rem;
      background: linear-gradient(135deg, #7FBFBF, #2D7D7D);
      border-radius: 2rem;
      opacity: 0.7;
      animation: rotate 20s linear infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); }
      50% { transform: scale(1.1); }
    }

    @keyframes rotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    .items-container {
      position: relative;
      z-index: 10;
      display: flex;
      gap: 1rem;
      align-items: center;
    }

    .items-column {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .item-box {
      border-radius: 1.5rem;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
      transition: transform 0.3s;
    }

    .item-box:hover {
      transform: scale(1.05);
    }

    .item-1 {
      width: 5rem;
      height: 6rem;
      background: #2D7D7D;
    }

    .item-2 {
      width: 5rem;
      height: 6rem;
      background: #0D4F4F;
    }

    .item-3 {
      width: 7rem;
      height: 10rem;
      background: #7FBFBF;
    }

    .item-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .cta-content {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .cta-label {
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      color: #2D7D7D;
      font-weight: 600;
    }

    .cta-content h2 {
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 600;
      color: #2D2D2D;
      line-height: 1.3;
      letter-spacing: -0.01em;
    }

    .cta-content p {
      font-size: clamp(0.875rem, 2vw, 1rem);
      color: #6B6B6B;
      line-height: 1.7;
    }

    .cta-button {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.875rem 2rem;
      border-radius: 3rem;
      background: linear-gradient(135deg, #2D7D7D, #0D4F4F);
      color: white;
      font-size: 0.9375rem;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all 0.3s;
      box-shadow: 0 4px 15px rgba(45, 125, 125, 0.3);
      align-self: flex-start;
    }

    .cta-button:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(45, 125, 125, 0.4);
      background: linear-gradient(135deg, #0D4F4F, #2D7D7D);
    }

    .cta-button:active {
      transform: translateY(0);
    }