.tbm-iu-section{
    position: relative;
    width: 100%;
    background:
      radial-gradient(60rem 30rem at 12% -10%, color-mix(in srgb, var(--color-secondary) 10%, transparent), transparent 60%),
      radial-gradient(50rem 26rem at 100% 0%, color-mix(in srgb, var(--color-primary) 12%, transparent), transparent 55%),
      var(--gray-50);
    padding: 5rem 1.5rem 5.5rem;
    overflow: hidden;
  }

  .tbm-iu-section::before{
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(color-mix(in srgb, var(--color-primary) 14%, transparent) 1px, transparent 1px);
    background-size: 22px 22px;
    mask-image: radial-gradient(60rem 40rem at 50% 0%, #000 0%, transparent 72%);
    pointer-events: none;
  }

  .tbm-iu-container{
    position: relative;
    max-width: var(--container-w); /* 1280px */
    margin: 0 auto;
    z-index: 1;
  }

  /* ---------- Intro ---------- */

  .tbm-iu-topline{
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    margin: 0 0 3rem;
  }

  .tbm-iu-badge{
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .4rem .9rem .4rem .6rem;
    border-radius: var(--radius-pill);
    background: #ffffff;
    border: var(--border-hairline);
    box-shadow: var(--shadow-sm);
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: .02em;
    color: var(--text-secondary);
    margin: 0 0 1rem;
  }

  .tbm-iu-badge-dot{
    width: .5rem;
    height: .5rem;
    border-radius: 50%;
    background: var(--color-secondary);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-secondary) 22%, transparent);
  }

  .tbm-iu-intro{
    max-width: 40rem;
  }

  .tbm-iu-intro h2{
    margin: 0 0 .75rem;
    font-size: var(--fs-2xl);
    line-height: 1.25;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -.01em;
  }

  .tbm-iu-intro p{
    margin: 0;
    font-size: var(--fs-md);
    line-height: 1.65;
    color: var(--text-secondary);
  }

  .tbm-iu-facts{
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
  }

  .tbm-iu-fact{
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .65rem .9rem;
    background: #ffffff;
    border: var(--border-hairline);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
  }

  .tbm-iu-fact svg{
    width: 1rem;
    height: 1rem;
    stroke: var(--color-secondary-dark);
    fill: none;
    stroke-width: 2;
    flex-shrink: 0;
  }

  /* ---------- Cards ---------- */

  .tbm-iu-grid{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }

  .tbm-iu-card{
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 2.75rem 2.5rem 2.25rem;
    background: #ffffff;
    border: var(--border-hairline);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    isolation: isolate;
    transition:
      transform var(--transition-fast),
      box-shadow var(--transition-fast);
  }

  .tbm-iu-card::before{
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(150deg, var(--color-primary) 0%, var(--color-primary-light) 55%, var(--color-primary-dark) 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -2;
  }

  .tbm-iu-card--transport::before{
    background: linear-gradient(150deg, var(--color-secondary-dark) 0%, var(--color-secondary) 55%, var(--color-secondary-dark) 100%);
  }

  .tbm-iu-card::after{
    content: "";
    position: absolute;
    top: -30%;
    right: -18%;
    width: 16rem;
    height: 16rem;
    border-radius: 50%;
    background: color-mix(in srgb, var(--color-tertiary) 45%, transparent);
    opacity: .6;
    z-index: -1;
    transition: opacity var(--transition-fast), transform .5s var(--ease-spring);
  }

  .tbm-iu-card:hover,
  .tbm-iu-card:focus-visible{
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
  }

  .tbm-iu-card:hover::before,
  .tbm-iu-card:focus-visible::before{
    opacity: 1;
  }

  .tbm-iu-card:hover::after,
  .tbm-iu-card:focus-visible::after{
    opacity: .12;
    transform: scale(1.35) translate(4%, -4%);
    background: #ffffff;
  }

  .tbm-iu-card:focus-visible{
    outline: 2px solid var(--color-secondary);
    outline-offset: 3px;
  }

  .tbm-iu-card-top{
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin: 0 0 1.75rem;
  }

  .tbm-iu-icon{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.75rem;
    height: 3.75rem;
    border-radius: var(--radius-md);
    background: var(--color-tertiary);
    color: var(--color-primary);
    transition: background var(--transition-fast), color var(--transition-fast);
    flex-shrink: 0;
  }

  .tbm-iu-card--transport .tbm-iu-icon{
    color: var(--color-secondary-dark);
  }

  .tbm-iu-card:hover .tbm-iu-icon,
  .tbm-iu-card:focus-visible .tbm-iu-icon{
    background: rgba(255,255,255,.18);
    color: var(--text-on-dark);
  }

  .tbm-iu-icon svg{
    width: 1.875rem;
    height: 1.875rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.6;
  }

  .tbm-iu-arrow-badge{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    border: var(--border-hairline);
    color: var(--text-muted);
    transition:
      background var(--transition-fast),
      border-color var(--transition-fast),
      color var(--transition-fast),
      transform var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-arrow-badge,
  .tbm-iu-card:focus-visible .tbm-iu-arrow-badge{
    background: rgba(255,255,255,.16);
    border-color: rgba(255,255,255,.35);
    color: var(--text-on-dark);
    transform: rotate(45deg);
  }

  .tbm-iu-arrow-badge svg{
    width: 1.1rem;
    height: 1.1rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
  }

  .tbm-iu-eyebrow{
    display: block;
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-accent);
    margin: 0 0 .5rem;
    transition: color var(--transition-fast);
  }

  .tbm-iu-card--transport .tbm-iu-eyebrow{
    color: var(--color-secondary-light);
  }

  .tbm-iu-card:hover .tbm-iu-eyebrow,
  .tbm-iu-card:focus-visible .tbm-iu-eyebrow{
    color: var(--text-on-dark-70);
  }

  .tbm-iu-card-title{
    margin: 0 0 .75rem;
    font-size: var(--fs-2xl);
    font-weight: 800;
    letter-spacing: -.01em;
    color: var(--text-primary);
    transition: color var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-card-title,
  .tbm-iu-card:focus-visible .tbm-iu-card-title{
    color: var(--text-on-dark);
  }

  .tbm-iu-card-desc{
    margin: 0 0 1.75rem;
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-card-desc,
  .tbm-iu-card:focus-visible .tbm-iu-card-desc{
    color: var(--text-on-dark-70);
  }

  .tbm-iu-list{
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    margin: 0 0 2rem;
    padding: 0;
  }

  .tbm-iu-list li{
    display: flex;
    align-items: center;
    gap: .65rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-list li,
  .tbm-iu-card:focus-visible .tbm-iu-list li{
    color: var(--text-on-dark-70);
  }

  .tbm-iu-list li svg{
    width: 1.05rem;
    height: 1.05rem;
    stroke: var(--color-secondary-dark);
    fill: none;
    stroke-width: 2.2;
    flex-shrink: 0;
    transition: stroke var(--transition-fast);
  }

  .tbm-iu-card--contact .tbm-iu-list li svg{
    stroke: var(--color-primary-light);
  }

  .tbm-iu-card:hover .tbm-iu-list li svg,
  .tbm-iu-card:focus-visible .tbm-iu-list li svg{
    stroke: var(--text-on-dark);
  }

  .tbm-iu-card-foot{
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: var(--border-hairline);
    transition: border-color var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-card-foot,
  .tbm-iu-card:focus-visible .tbm-iu-card-foot{
    border-top-color: rgba(255,255,255,.2);
  }

  .tbm-iu-card-cta{
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--btn-primary-bg-hover);
    transition: color var(--transition-fast), gap var(--transition-fast);
  }

  .tbm-iu-card--transport .tbm-iu-card-cta{
    color: var(--color-secondary-dark);
  }

  .tbm-iu-card:hover .tbm-iu-card-cta,
  .tbm-iu-card:focus-visible .tbm-iu-card-cta{
    color: var(--text-on-dark);
    gap: .75rem;
  }

  .tbm-iu-card-cta svg{
    width: 1.1rem;
    height: 1.1rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    transition: transform var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-card-cta svg,
  .tbm-iu-card:focus-visible .tbm-iu-card-cta svg{
    transform: translateX(3px);
  }

  .tbm-iu-card-tag{
    font-size: var(--fs-2xs);
    font-weight: 700;
    letter-spacing: .04em;
    padding: .3rem .65rem;
    border-radius: var(--radius-pill);
    background: var(--gray-100);
    color: var(--text-muted);
    transition: background var(--transition-fast), color var(--transition-fast);
  }

  .tbm-iu-card:hover .tbm-iu-card-tag,
  .tbm-iu-card:focus-visible .tbm-iu-card-tag{
    background: rgba(255,255,255,.16);
    color: var(--text-on-dark);
  }

  /* ---------- İletişim bilgileri (ekstra bölüm) ---------- */

  .tbm-iu-contact-info{
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: var(--border-hairline);
  }

  .tbm-iu-contact-info-head{
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 0 0 1.75rem;
  }

  .tbm-iu-contact-info-head h3{
    margin: 0;
    font-size: var(--fs-xl);
    font-weight: 800;
    letter-spacing: -.01em;
    color: var(--text-primary);
  }

  .tbm-iu-contact-info-head p{
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-secondary);
  }

  .tbm-iu-contact-info-grid{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .tbm-iu-contact-info-card{
    position: relative;
    display: flex;
    flex-direction: column;
    gap: .9rem;
    padding: 1.75rem 1.5rem;
    background: #ffffff;
    border: var(--border-hairline);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: inherit;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  }

  .tbm-iu-contact-info-card:hover,
  .tbm-iu-contact-info-card:focus-visible{
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: color-mix(in srgb, var(--color-secondary) 35%, var(--gray-200));
  }

  .tbm-iu-contact-info-card:focus-visible{
    outline: 2px solid var(--color-secondary);
    outline-offset: 3px;
  }

  .tbm-iu-contact-info-icon{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--radius-md);
    background: var(--color-tertiary);
    color: var(--color-primary);
  }

  .tbm-iu-contact-info-card--alt .tbm-iu-contact-info-icon{
    color: var(--color-secondary-dark);
  }

  .tbm-iu-contact-info-icon svg{
    width: 1.4rem;
    height: 1.4rem;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.7;
  }

  .tbm-iu-contact-info-label{
    display: block;
    font-size: var(--fs-2xs);
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text-accent);
  }

  .tbm-iu-contact-info-value{
    margin: 0;
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
  }

  .tbm-iu-contact-info-sub{
    margin: 0;
    font-size: var(--fs-sm);
    color: var(--text-muted);
    line-height: 1.5;
  }

  /* Responsive */
  @media (max-width: 860px){
    .tbm-iu-grid{
      grid-template-columns: 1fr;
    }
    .tbm-iu-facts{
      width: 100%;
    }
    .tbm-iu-contact-info-grid{
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 480px){
    .tbm-iu-section{
      padding: 3rem 1.25rem 3.5rem;
    }
    .tbm-iu-card{
      padding: 2.25rem 1.75rem 1.75rem;
    }
    .tbm-iu-fact{
      flex: 1 1 auto;
    }
    .tbm-iu-contact-info-grid{
      grid-template-columns: 1fr;
    }
    .tbm-iu-contact-info-head{
      flex-direction: column;
      align-items: flex-start;
      gap: .4rem;
    }
  }

  @media (prefers-reduced-motion: reduce){
    .tbm-iu-card,
    .tbm-iu-card::before,
    .tbm-iu-card::after,
    .tbm-iu-icon,
    .tbm-iu-arrow-badge,
    .tbm-iu-eyebrow,
    .tbm-iu-card-title,
    .tbm-iu-card-desc,
    .tbm-iu-list li,
    .tbm-iu-list li svg,
    .tbm-iu-card-cta,
    .tbm-iu-card-cta svg,
    .tbm-iu-card-tag,
    .tbm-iu-card-foot{
      transition: none;
    }
    .tbm-iu-card:hover{
      transform: none;
    }
  }