*, *::before, *::after { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; }
  body {
    background: #FBFCFD;
    color: #0F1B2E;
    font-family: 'Source Sans 3', system-ui, -apple-system, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; }
  a { color: #00297D; }
  a:hover { color: #00BCD9; }
  :focus-visible { outline: 3px solid #00BCD9; outline-offset: 3px; border-radius: 6px; }

  .wrap { padding: 0 clamp(18px, 5vw, 56px); }
  .inner { max-width: 1240px; margin: 0 auto; }

  /* Header */
  .site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 0 6px; }
  .site-logo { display: flex; align-items: center; gap: clamp(14px, 2vw, 26px); text-decoration: none; color: inherit; }
  .site-logo img { width: auto; height: clamp(72px, 8vw, 104px); display: block; }
  .site-divider { width: 1px; align-self: stretch; margin: 6px 0; background: linear-gradient(180deg, rgba(23,56,95,0) 0%, rgba(23,56,95,.22) 50%, rgba(23,56,95,0) 100%); }
  .site-wordmark { display: flex; flex-direction: column; gap: 6px; }
  .site-wordmark-name { font-family: 'Playfair Display', Georgia, serif; font-size: clamp(22px, 2.4vw, 32px); font-weight: 700; color: #17385F; letter-spacing: -.01em; white-space: nowrap; }
  .site-wordmark-tag { font-size: clamp(11px, 1.1vw, 14px); font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: #2AA3B8; white-space: nowrap; }
  .nav { display: flex; flex-wrap: wrap; align-items: center; gap: clamp(14px, 2.4vw, 32px); }
  .nav-link { font-size: 16px; font-weight: 600; color: #00297D; text-decoration: none; padding: 10px 2px; border-bottom: 2px solid #00BCD9; }
  .nav-cta { font-size: 15px; font-weight: 600; color: #00297D; text-decoration: none; padding: 12px 20px; border: 1px solid #CFD9E8; border-radius: 999px; background: #FFFFFF; transition: border-color .18s ease, background .18s ease; }
  .nav-cta:hover { border-color: #00297D; background: #F3F7FD; color: #00297D; }

  .rule { height: 5px; border-radius: 999px; margin-top: 18px;
    background: linear-gradient(90deg, rgba(29,58,102,0) 0%, #1D3A66 14%, #1E7FA8 42%, #00BCD9 62%, #6FE3D6 82%, rgba(111,227,214,0) 100%); }

  /* Main two-column */
  .main { display: flex; flex-wrap: wrap-reverse; align-items: center; gap: clamp(36px, 5vw, 72px); padding: clamp(16px, 2vw, 28px) 0 clamp(40px, 5vw, 72px); }
  .col-visual { flex: 1 1 400px; min-width: 280px; }
  .col-content { flex: 1 1 520px; min-width: 280px; }

  .stack { position: relative; width: 100%; max-width: 560px; margin: 0 auto; aspect-ratio: 560 / 480; }
  .glow { position: absolute; inset: auto auto 6% 2%; width: 26%; padding-bottom: 26%; border-radius: 999px;
    background: radial-gradient(circle at 30% 30%, rgba(0,188,217,.16), rgba(0,188,217,0) 70%); }
  .shot { position: absolute; border-radius: 26px; overflow: hidden; background: #EEF3F8; box-shadow: 0 18px 44px rgba(0,41,125,.10); }
  .shot img { width: 100%; height: auto; display: block; }
  .shot-a { top: 0; left: 0; width: 74%; aspect-ratio: 4 / 3; }
  .shot-b { bottom: 0; right: 0; width: 62%; aspect-ratio: 4 / 3; border: 8px solid #FBFCFD; }

  .badges { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-top: 28px; }
  .badge { display: inline-block; max-width: 100%; border-radius: 999px; padding: 16px clamp(20px, 4vw, 34px);
    background: linear-gradient(90deg, #C8455F, #8E6FB4 48%, #2A9D8F); box-shadow: 0 12px 30px rgba(15,27,46,.14);
    font-size: clamp(15px, 3.6vw, 19px); font-weight: 700; color: #FFFFFF; text-align: center; letter-spacing: .01em; }

  h1 { font-family: 'Playfair Display', Georgia, serif; font-size: clamp(32px, 4.1vw, 54px); line-height: 1.12; font-weight: 700;
    letter-spacing: -.02em; margin: 0; text-wrap: pretty; max-width: 15em; }
  h1 span { color: #00297D; }
  .lede { font-size: clamp(16px, 1.3vw, 19px); line-height: 1.62; color: #5A6B85; margin: 20px 0 0; max-width: 40em; text-wrap: pretty; }

  .cards { display: flex; flex-direction: column; gap: 18px; margin-top: clamp(28px, 3vw, 40px); }
  .card { position: relative; overflow: hidden; display: flex; flex-wrap: wrap; align-items: center; gap: clamp(18px, 2vw, 28px);
    background: #FFFFFF; border: 1px solid #E4E9F0; border-radius: 22px;
    padding: clamp(24px, 2vw, 28px) clamp(20px, 2vw, 26px) clamp(20px, 2vw, 26px);
    text-decoration: none; color: inherit; box-shadow: 0 2px 10px rgba(15,27,46,.04);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
  .card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
    background: linear-gradient(90deg, #C8455F, #8E6FB4 48%, #2A9D8F); }
  .card:hover, .card:focus-visible { transform: translateY(-4px); }
  .card-docentlik:hover, .card-docentlik:focus-visible { border-color: #00297D; box-shadow: 0 16px 34px rgba(0,41,125,.12); }
  .card-ilac:hover, .card-ilac:focus-visible { border-color: #00BCD9; box-shadow: 0 16px 34px rgba(0,188,217,.16); }
  .card-logo { width: 144px; height: auto; flex-shrink: 0; }
  .card-body { flex: 1 1 180px; min-width: 160px; }
  .card-body h2 { font-family: 'Nunito', sans-serif; font-size: clamp(19px, 1.6vw, 23px); font-weight: 800; margin: 0; letter-spacing: -.01em; }
  .card-body p { font-size: 16px; line-height: 1.6; color: #5A6B85; margin: 8px 0 0; text-wrap: pretty; }
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 13px 24px;
    border-radius: 999px; color: #FFFFFF; font-size: 16px; font-weight: 600; white-space: nowrap; transition: background .18s ease; }
  .btn-navy { background: #00297D; }
  .card-docentlik:hover .btn-navy { background: #001C5C; }
  .btn-teal { background: #00BCD9; }
  .card-ilac:hover .btn-teal { background: #009DB6; }

  .card-ilan:hover, .card-ilan:focus-visible { border-color: #1E9BD7; box-shadow: 0 16px 34px rgba(30,155,215,.16); }
  .btn-sky { background: #1E9BD7; }
  .card-ilan:hover .btn-sky { background: #1783B8; }

  .card-soon { background: #F6F8FB; border: 1px dashed #D6DEEA; box-shadow: none; }
  .soon-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
  .card-soon h2 { font-family: 'Nunito', sans-serif; font-size: clamp(18px, 1.4vw, 21px); font-weight: 700; margin: 0; color: #3C4C66; }
  .tag { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #00297D;
    background: #E7EEF9; border-radius: 999px; padding: 6px 12px; }
  .card-soon p { font-size: 16px; line-height: 1.6; color: #6B7A93; margin: 8px 0 0; text-wrap: pretty; }

  /* Footer */
  .footer { padding: 8px 0 48px; }
  .footer-block { background: #1D3A66; border-radius: 26px; padding: clamp(22px, 2.4vw, 32px) clamp(28px, 3.5vw, 48px) clamp(20px, 2.2vw, 28px); }
  .footer-top { display: flex; flex-wrap: wrap; gap: clamp(32px, 5vw, 72px); align-items: flex-start; }
  .footer-brand { flex: 2 1 380px; min-width: 240px; }
  .footer-name { font-family: 'Playfair Display', Georgia, serif; font-size: clamp(26px, 2.6vw, 36px); font-weight: 700; color: #FFFFFF; }
  .footer-tagline { font-size: 14px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: #6FE3D6; margin-top: 12px; }
  .footer-brand p { max-width: 26em; text-wrap: pretty; }
  .footer-lede { font-size: 17px; line-height: 1.7; color: #C6D3E6; margin: 20px 0 0; }
  .footer-note { font-size: 15px; line-height: 1.65; color: #A9BBD4; margin: 14px 0 0; }
  .footer-links { flex: 1 1 220px; min-width: 200px; text-align: right; }
  .footer-links-title { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: #FFFFFF;
    padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,.18); }
  .footer-links ul { list-style: none; margin: 18px 0 0; padding: 0; display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }
  .footer-links a { font-size: 16px; font-weight: 500; color: #E4ECF7; text-decoration: none; display: inline-block; padding: 2px 0; transition: color .18s ease; }
  .footer-links a:hover { color: #6FE3D6; }
  .footer-bottom { margin-top: clamp(18px, 2vw, 26px); padding-top: 14px; border-top: 1px solid rgba(255,255,255,.14);
    display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 15px; color: #A9BBD4; }
  .footer-bottom a { color: #6FE3D6; text-decoration: none; font-weight: 500; }
  .footer-bottom a:hover { color: #FFFFFF; }

  .social-row { padding: clamp(20px, 2.2vw, 30px) clamp(4px, 1vw, 12px) 0; display: flex; flex-wrap: wrap;
    align-items: center; justify-content: space-between; gap: 24px; }
  .social-title { font-family: 'Playfair Display', Georgia, serif; font-size: clamp(24px, 2.2vw, 30px); font-weight: 700; }
  .social-row p { font-size: 17px; color: #5A6B85; margin: 8px 0 0; }
  .social-icons { display: flex; align-items: center; gap: 14px; }
  .social-icons a { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; border-radius: 999px;
    transition: transform .18s ease, box-shadow .18s ease; }
  .social-icons a:hover { transform: translateY(-3px); }
  .ig { background: linear-gradient(135deg, #F58529, #DD2A7B 55%, #8134AF); }
  .ig:hover { box-shadow: 0 10px 22px rgba(221,42,123,.32); }
  .yt { background: #FF0000; }
  .yt:hover { box-shadow: 0 10px 22px rgba(255,0,0,.3); }
  .li { background: #0A66C2; }
  .li:hover { box-shadow: 0 10px 22px rgba(10,102,194,.32); }
  .fb { background: #1877F2; }
  .fb:hover { box-shadow: 0 10px 22px rgba(24,119,242,.32); }
  .ml { background: #2A9D8F; }
  .ml:hover { box-shadow: 0 10px 22px rgba(42,157,143,.32); }

  @media (max-width: 720px) {
    .site-header { justify-content: center; text-align: center; }
    .nav { justify-content: center; width: 100%; }
    .card { text-align: left; }
    .card-logo { width: 120px; }
    .btn { width: 100%; }
    .footer-links { text-align: left; }
    .footer-links ul { align-items: flex-start; }
  }
  @media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
  }