body { 
      background-color: #e0f2f1;
      background-image: linear-gradient(rgba(0,0,0,0.04)1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,0.04)1px,transparent 1px);
      background-attachment: fixed; min-height: 100vh; padding: 40px 20px; font-family: 'Inter', sans-serif;
    }

    .container { 
      max-width: 1200px; background: rgba(255,255,255,0.94); padding: 45px; 
      border-radius: 30px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); backdrop-filter: blur(5px); position: relative;
    }

    .user-panel {
      position: absolute; top: 20px; right: 30px; font-size: 0.9rem; color: #0f766e; font-weight: 600;
      display: flex; gap: 10px; align-items: center;
    }
    .btn-logout { background: #fee2e2; color: #ef4444; border: none; padding: 5px 12px; border-radius: 8px; font-size: 0.8rem; cursor: pointer; }
    .btn-history { background: #ccfbf1; color: #0f766e; border: none; padding: 5px 12px; border-radius: 8px; font-size: 0.8rem; cursor: pointer; margin-right: 5px;}

    h2 { color: #0d9488; font-weight: 800; }
    
    .section-header { 
      background: linear-gradient(90deg, #0f766e, #14b8a6);
      color: white; padding: 16px 22px; border-radius: 12px; 
      margin-top: 35px; margin-bottom: 20px; font-weight: 700;
    }

    .uda-kart { background: #ffffff; border: 1px solid #ccf2f0; border-radius: 16px; margin-bottom: 20px; }
    .uda-baslik-alani { padding: 22px; display: flex; align-items: center; cursor: pointer; background: #f0fdfa; border-radius: 16px; }
    .uda-metin { font-weight: 700; color: #0f766e; flex: 1; }
    .uda-checkbox { width: 22px; height: 22px; margin-right: 15px; accent-color: #14b8a6; }

    .kda-satir { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; }
    .secenek-grubu { display: flex; gap: 20px; width: 220px; justify-content: flex-end; border-left: 2px solid #f1f5f9; padding-left: 15px; }

    .detay-alani {
      background: #fafafa; padding: 20px; border-radius: 12px; margin: 10px; display: none;
      border: 1px solid #fee2e2; border-left: 8px solid #ef4444;
    }
    .detay-satir { display: flex; flex-direction: row; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
    .detay-kolon { flex: 1; min-width: 140px; }
    .detay-kolon label { font-size: 0.75rem; font-weight: 800; color: #64748b; margin-bottom: 6px; display: block; }

    .btn-primary { 
      background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%); 
      border: none; border-radius: 15px; padding: 20px; font-weight: 700; font-size: 1.2rem;
    }

    
    .modal-overlay {
      position: fixed; top: 0; left: 0; width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px);
      display: none; justify-content: center; align-items: center; z-index: 9999;
      animation: fadeIn 0.3s ease-out;
    }
    .modal-kart {
      background: white; padding: 30px; border-radius: 24px;
      width: 90%; max-width: 600px; text-align: center;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
      border: 1px solid #ccf2f0;
      animation: scaleIn 0.3s ease-out forwards;
    }
    .modal-ikon {
      width: 60px; height: 60px; background: #fef2f2; color: #ef4444;
      border-radius: 50%; display: flex; align-items: center; justify-content: center;
      margin: 0 auto 20px auto; font-size: 30px; font-weight: 800;
    }
    .modal-baslik { color: #111827; font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; }
    .modal-mesaj { color: #6b7280; margin-bottom: 25px; line-height: 1.5; }
    
    .btn-modal {
      background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%); color: white;
      border: none; padding: 12px 30px; border-radius: 12px; font-weight: 600;
      cursor: pointer; width: 100%; font-size: 1rem;
    }
    .login-input { width: 100%; padding: 12px; border: 2px solid #ccf2f0; border-radius: 10px; margin-bottom: 20px; font-size: 1rem; text-align: center; outline: none; }
    .gecmis-liste { max-height: 400px; overflow-y: auto; text-align: left; margin-top: 15px; }

    @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
    @keyframes scaleIn { from { transform: scale(0.9); } to { transform: scale(1); } }
    
    #girisEkraniWrapper {
      position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
      
      background: linear-gradient(135deg, #0c1e4f 0%, #0f766e 100%);
      display: flex; flex-direction: column; justify-content: center; align-items: center;
      z-index: 9995; padding: 20px; overflow-y: auto;
    }

    .welcome-logos img { filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3)); transition: transform 0.3s; }
    .welcome-logos img:hover { transform: scale(1.05); }
    
    .welcome-title-main {
      color: #ffffff; font-weight: 900; font-size: 2.2rem; text-align: center;
      margin-bottom: 30px; text-shadow: 2px 2px 10px rgba(0,0,0,0.5); letter-spacing: 1px;
    }

    .welcome-box {
      background: rgba(255, 255, 255, 0.98); 
      padding: 50px; border-radius: 30px; text-align: center;
      max-width: 750px; width: 100%;
      
      box-shadow: 0 30px 60px -15px rgba(0,0,0,0.5);
      border-top: 5px solid #f59e0b; 
      animation: scaleIn 0.5s ease-out forwards;
    }

    .welcome-text { font-size: 1.15rem; color: #334155; line-height: 1.9; font-weight: 500; }
    .welcome-highlight { color: #0f766e; font-weight: 800; }
    .welcome-link { color: #d97706; font-weight: bold; text-decoration: none; border-bottom: 2px dotted #d97706; transition: all 0.2s;}
    .welcome-link:hover { color: #b45309; border-bottom: 2px solid #b45309; }

    .btn-start-glow {
      
      background: linear-gradient(45deg, #f59e0b, #fbbf24);
      border: none; padding: 20px 60px; border-radius: 50px;
      color: #fff; font-weight: 800; font-size: 1.4rem; cursor: pointer;
      box-shadow: 0 10px 25px -5px rgba(245, 158, 11, 0.6); 
      transition: all 0.3s ease; display: inline-block;
    }
    .btn-start-glow:hover {
      transform: translateY(-5px); 
      box-shadow: 0 20px 40px -10px rgba(245, 158, 11, 0.8);
    }
      
    .uda-kart {
      
    }

    .uda-kart:hover {
      transform: translateY(-7px); 
      box-shadow: 0 20px 40px -5px rgba(15, 118, 110, 0.25); 
      border-color: #2dd4bf; 
      z-index: 10; 
    }
    
    
    .uda-kart:has(.uda-checkbox:checked) {
       background-color: #f0fdfa;
       border-color: #0f766e;
    }
    
.container, .main-content {
    position: relative; 
}

.dokuman-kutusu {
    position: absolute;
    top: 0;             
    right: -240px;      
    width: 220px;       
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    border: 1px solid #e2e8f0;
    z-index: 100;
}

.kutu-baslik {
    background: #0f766e; 
    color: white;
    padding: 12px;
    font-weight: bold;
    text-align: center;
    font-size: 0.95rem;
}

.kutu-icerik {
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dokuman-link {
    display: flex;
    align-items: center;
    padding: 10px;
    background: #f8fafc;
    border: 1px solid #f1f5f9;
    border-radius: 8px;
    text-decoration: none;
    color: #475569;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
}

.dokuman-link i {
    font-size: 1.2rem;
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.dokuman-link:hover {
    background: #e0f2fe;
    color: #0284c7;
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}


@media (max-width: 1400px) {
    .dokuman-kutusu {
        position: static; 
        width: 100%;      
        margin-bottom: 20px; 
        right: auto;
    }
    
    .kutu-icerik {
        flex-direction: row; 
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .dokuman-link {
        flex: 1;
        min-width: 150px;
        justify-content: center;
    }
}
.kda-satir-konteynir {
content-visibility: auto;
contain-intrinsic-size: 150px;
will-change: transform, opacity;
transform: translateZ(0);
backface-visibility: hidden;
}

.hizli-aciklama-kutusu {
    position: relative;
    display: inline-block;
}

.hizli-aciklama-kutusu .aciklama-metni {
    visibility: hidden;
    width: 320px;
    background-color: #1e293b; 
    color: #f8fafc;
    text-align: center;
    border-radius: 10px;
    padding: 12px 15px;
    position: absolute;
    z-index: 99999;
    bottom: 150%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.2s ease-in-out; 
    font-size: 0.75rem;
    font-weight: 500;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    line-height: 1.5;
}


.hizli-aciklama-kutusu .aciklama-metni::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -8px;
    border-width: 8px;
    border-style: solid;
    border-color: #1e293b transparent transparent transparent;
}


.hizli-aciklama-kutusu:hover .aciklama-metni {
    visibility: visible;
    opacity: 1;
}