:root {
            --primary-color: #FED233;
            --primary-dark: #E6BD00;
            --primary-light: #FFF3A0;
            --primary-gradient: linear-gradient(135deg, #FED233 0%, #F7C52D 100%);
            --secondary-gradient: linear-gradient(135deg, #FED233 0%, #FFE066 100%);
            --success-gradient: linear-gradient(135deg, #FED233 0%, #F7C52D 100%);
            --card-shadow: 0 20px 40px rgba(254, 210, 51, 0.2);
            --hover-shadow: 0 25px 50px rgba(254, 210, 51, 0.3);
        }

        .modal-content {
            border: none;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            backdrop-filter: blur(20px);
        }

        .modal-header {
            background: var(--primary-gradient);
            border: none;
            padding: 2rem;
            position: relative;
            overflow: hidden;
        }

        .modal-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="white" opacity="0.1"/><circle cx="80" cy="40" r="1" fill="white" opacity="0.1"/><circle cx="40" cy="80" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
            pointer-events: none;
        }

        .modal-title {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 1;
        }

        .btn-close {
            background: rgba(255,255,255,0.3);
            border: none;
            color: white;
            font-size: 1.2rem;
            opacity: 1;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .btn-close:hover {
            background: rgba(255,255,255,0.5);
            transform: rotate(90deg) scale(1.1);
            opacity: 1;
        }

        .btn-close:focus {
            box-shadow: none;
            opacity: 1;
        }

        .nav-tabs {
            border: none;
            background: linear-gradient(90deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 0.5rem;
            border-radius: 15px;
            margin: 1.5rem;
        }

        .nav-link {
            border: none;
            border-radius: 12px;
            padding: 1rem 1.5rem;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .nav-link:not(.active):hover {
            background: rgba(255,255,255,0.7);
            transform: translateY(-2px);
        }

        .nav-link.active {
            background: white;
            color: #FED233;
            box-shadow: 0 8px 25px rgba(254, 210, 51, 0.3);
            transform: translateY(-2px);
        }

        .education-card {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            margin: 1.5rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .education-image {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            background: linear-gradient(135deg, #FED233 0%, #F7C52D 100%);
            aspect-ratio: 16/9;
        }

        .education-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .education-image:hover img {
            transform: scale(1.05);
        }

        .play-button {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: rgba(255,255,255,0.95);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 25px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
        }

        .play-button:hover {
            transform: translate(-50%, -50%) scale(1.1);
            background: white;
        }

        .feature-badge {
            background: linear-gradient(135deg, #FED233 0%, #F7C52D 100%);
            color: #333;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            font-size: 0.875rem;
            font-weight: 600;
            margin: 0.25rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: transform 0.2s ease;
            box-shadow: 0 4px 15px rgba(254, 210, 51, 0.3);
        }

        .feature-badge:hover {
            transform: translateY(-2px);
        }

        .price-section {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 15px;
            padding: 2rem;
            margin: 1.5rem 0;
            text-align: center;
        }

        .btn-modern {
            background: var(--primary-gradient);
            border: none;
            border-radius: 50px;
            padding: 1rem 2.5rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-size: 0.875rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .btn-modern:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(254, 210, 51, 0.4);
        }

        .btn-modern::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .btn-modern:hover::before {
            left: 100%;
        }

        .btn-success-modern {
            background: var(--success-gradient);
        }

        .btn-success-modern:hover {
            box-shadow: 0 15px 35px rgba(254, 210, 51, 0.4);
        }

        .form-control-modern {
            border: 2px solid #e9ecef;
            border-radius: 12px;
            padding: 1rem;
            transition: all 0.3s ease;
            background: #fafbfc;
        }

        .form-control-modern:focus {
            border-color: #FED233;
            box-shadow: 0 0 0 3px rgba(254, 210, 51, 0.2);
            background: white;
        }

        .contact-card {
            background: linear-gradient(135deg, #FED233 0%, #F7C52D 100%);
            color: #333;
            border-radius: 15px;
            padding: 1.5rem;
            text-align: center;
            margin: 1.5rem 0;
            box-shadow: 0 10px 30px rgba(254, 210, 51, 0.3);
        }

        .contact-card .btn {
            background: rgba(255,255,255,0.9);
            border: 2px solid rgba(255,255,255,0.5);
            color: #333;
            backdrop-filter: blur(10px);
        }

        .contact-card .btn:hover {
            background: white;
            color: #333;
            transform: translateY(-2px);
        }

        .fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 768px) {
            .modal-dialog {
                margin: 1rem;
            }
            
            .education-card {
                margin: 1rem;
                padding: 1.5rem;
            }
            
            .nav-tabs {
                margin: 1rem;
            }
            
            .modal-header {
                padding: 1.5rem;
            }
            .custom-tabs {
    padding: 0.5rem;
    gap: 0.5rem;
  }

  .custom-tabs .nav-link {
    font-size: 1rem;
    padding: 10px 12px;
  }
        }

        /* Custom responsive tab styles */
.custom-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  background-color: #f9f9f9;
  padding: 1rem;
  border-bottom: none;
}

.custom-tabs .nav-item {
  flex: 1 1 200px; /* 200px minimum genişlik, esnek yapı */
  max-width: 300px;
}

.custom-tabs .nav-link {
  width: 100%;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 10px;
  background-color: #ffffff;
  color: #333;
  transition: all 0.3s ease;
}

.custom-tabs .nav-link:hover {
  background-color: #f0f0f0;
}

.custom-tabs .nav-link.active {
  background-color: #FED233;
  color: #000;
}