:root{
      --transition-base: 0.3s ease;
      --fels-teal:#145C6A;
      --fels-teal-light: #1a7a8c;
      --fels-teal-dark: #0f4450;
      --fels-ink:#0b0f14;
      --fels-muted:#5b6573;
      --fels-bg:#ffffff;
      --fels-soft:#f5f7fa;
      --fels-border:#e6eaf0;
    }

    /* FONTS */
    @font-face {
      font-family: "Open Sans";
      src: url("../fonts/OpenSans-Regular.woff2") format("woff2");
      font-weight: 400;
      font-style: normal;
      font-display: swap;
    }

    @font-face {
      font-family: "Coolvetica";
      src: url("../fonts/Coolvetica Rg It.woff2") format("woff2");
      font-weight: 400;
      font-style: normal;
      font-display: swap;
    }

    html{
      scroll-behavior: smooth;
    }

    body{
      color: var(--fels-ink);
      background: var(--fels-bg);
      scroll-behavior: smooth;
      font-family: "Open Sans", Arial, serif;
    }

    /* Navbar and Hero -> inline html */

    /* ABOUT */
    #about .card{
      background-color: var(--fels-soft);
    }

    /* WHAT IS */
    #what-is .tab-title{
      color: var(--fels-teal);
    }
    #whatTabs .active{
      background-color: rgba(20,92,106,.08);
      border-color: var(--fels-teal);
    }

    /* SERVICES */
    #services .card{
      background-color: var(--fels-soft);
    }

    [data-service].active{
      background-color: rgba(20,92,106,.08);
      border-color: var(--fels-teal);
    }

    [data-service].active strong{
      color: var(--fels-teal);
    }

    #services-detail .card{
      background-color: var(--fels-soft);
    }

    /* COMPETENCIES */
    .card-clickable.active{
      background-color: rgba(20,92,106,.08);
      border-color: var(--fels-teal);
    }

    .card-clickable.active strong{
      color: var(--fels-teal);
    }

    #competencyDetailCard{
      background-color: rgba(20,92,106,.009);
      border-color: var(--fels-teal);
    }

    #compTitle{
      font-size: large;
    }

    #competencyAccordion .accordion-body{
      background-color: rgba(20,92,106,.009);
      border-color: var(--fels-teal);
    }

    #competencyAccordion .accordion-button{
      background-color: var(--fels-soft);
    }

    /* TESTIMONIALS */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }

    .testimonial-card {
      background: white;
      border: 1px solid var(--fels-border);
      border-radius: 1rem;
      padding: 2rem;
      transition: all var(--transition-base);
    }

    .testimonial-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
      border-color: var(--fels-teal);
    }

    .testimonial-rating {
      color: #ffc107;
      font-size: 1.25rem;
      margin-bottom: 1rem;
      letter-spacing: 0.25rem;
    }

    .testimonial-text {
      color: var(--fels-muted);
      font-style: italic;
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .author-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--fels-teal) 0%, var(--fels-teal-light) 100%);
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .author-info {
      display: flex;
      flex-direction: column;
      gap: 0.25rem;
    }

    .author-info strong {
      color: var(--fels-ink);
      font-size: 0.95rem;
    }

    .author-info span {
      color: var(--fels-muted);
      font-size: 0.85rem;
    }

    /* CONTACT SECTION */
    #finalContact h3{
      line-height: 1.2;
      font-weight: 700;
      margin-bottom: 1rem;
      font-size: clamp(1.25rem, 2vw, 1.75rem)
    }

    #finalContact h4 {
        color: var(--fels-teal);
    }

    .contact-method-card {
      background: white;
      border: 2px solid var(--fels-border);
      border-radius: 1rem;
      padding: 2rem;
      text-align: center;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      align-items: center;
      transition: all var(--transition-base);
      position: relative;
    }

    .contact-method-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
      border-color: var(--fels-teal);
    }

    .contact-method-icon {
      width: 80px;
      height: 80px;
      border-radius: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.5rem;
    }

    .contact-method-icon.whatsapp {
      background: linear-gradient(135deg, #25D366 0%, #1ea952 100%);
      color: white;
    }

    .contact-method-icon.calendar {
      background: linear-gradient(135deg, #4285F4 0%, #1a73e8 100%);
      color: white;
    }

    .contact-method-icon.email {
      /* background: linear-gradient(135deg, #EA4335 0%, #d33426 100%); */
      color: white;
    }

    .contact-method-card h3 {
      color: var(--fels-ink);
      font-size: 1.25rem;
      margin-bottom: 0.5rem;
    }

    .contact-method-card p {
      color: var(--fels-muted);
      font-size: 0.95rem;
      margin: 0;
    }

    .contact-badge {
      position: absolute;
      top: -12px;
      right: 1rem;
      background: var(--fels-teal);
      color: white;
      padding: 0.35rem 0.75rem;
      border-radius: 1rem;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .detail-box {
      background: white;
      border: 1px solid var(--fels-border);
      border-radius: 1rem;
      padding: 2rem;
      height: 100%;
    }

    .detail-box h3 {
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
      color: var(--fels-teal);
    }

    .detail-box ul,
    .detail-box ol {
      margin: 0;
      padding-left: 1.5rem;
      color: var(--fels-muted);
    }

    .detail-box li {
      margin-bottom: 0.75rem;
      line-height: 1.6;
    }

    /* CONTINUE LEARNING */
    .learning-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: .75rem; 
    display: block;
    }

    #learningModal .modal-header{
      background-color: var(--fels-soft);
    } 
    #learningModal .modal-footer{
      background-color: var(--fels-soft);
    } 

    .pill{
      display: inline-flex;
      gap: .5rem;
      align-items: center;
      border: 1px solid var(--fels-border);
      background-color: rgba(20,92,106,.009);
      border-color: var(--fels-teal);
      border-radius: 999px;
      padding: .4rem .75rem;
      color: var(--fels-muted);
      font-size: .9rem;
    }

    .section{
      padding: 4rem 0;
    }
    .section-alt{
      background: var(--fels-soft);
      border-top: 1px solid var(--fels-border);
      border-bottom: 1px solid var(--fels-border);
    }

    .card{
      border: 1px solid var(--fels-border);
      box-shadow: 0 1px 0 rgba(0,0,0,.03);
      border-radius: 1rem;
    }

    .card-clickable{
      cursor: pointer;
      transition: transform .08s ease, box-shadow .08s ease;
    }
    .card-clickable:hover{
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(0,0,0,.06);
    }

    .btn-fels{
      background: var(--fels-teal);
      border-color: var(--fels-teal);
      color: #fff;
      transition: all 0.3s ease;
    }
    .btn-fels:hover{
      background-color: rgba(20,92,106,.10);
      border-color: var(--fels-teal);
      color: var(--fels-teal);
    }

    .small-muted{
      color: var(--fels-muted);
      font-size: .95rem;
    }

    .kicker{
      letter-spacing: .14em;
      text-transform: uppercase;
      font-size: .78rem;
      color: var(--fels-muted);
    }

    .sticky-mobile-cta{
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 1030;
      background: rgba(255,255,255,.96);
      border-top: 1px solid var(--fels-border);
      padding: .75rem;
    }


    @media (max-width: 992px){
      body{
        padding-bottom: 40px;
      }
      #footerbtn{
        display: none;
      }
    }

    @media (min-width: 992px){
      .sticky-mobile-cta{ display: none; }
    }
    .video-thumb{
      position: relative;
      border-radius: 1rem;
      overflow: hidden;
      border: 1px solid var(--fels-border);
      background: #000;
    }
    .video-thumb img{
      width: 100%;
      height: auto;
      display: block;
      opacity: .9;
    }
    .video-thumb button{
      position: absolute;
      inset: 0;
      border: 0;
      background: transparent;
      display: grid;
      place-items: center;
      color: #fff;
    }
    .play{
      width: 72px;
      height: 72px;
      border-radius: 999px;
      background: rgba(20,92,106,.9);
      display: grid;
      place-items: center;
      border: 1px solid rgba(255,255,255,.25);
    }
    .play svg{ transform: translateX(2px); }
    .badge-soft{
      background: rgba(20,92,106,.08);
      color: var(--fels-teal);
      border: 1px solid rgba(20,92,106,.2);
      font-weight: 400;
    }
    footer{
      border-top: 1px solid var(--fels-border);
      background: #fff;
      padding: 2.5rem 0;
    }