/* Genel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Üst kartlar için yan yana düzen */
.ust-kartlar {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.musteri-karti {
    flex: 3; /* %75 */
}

.bakiye-karti {
    flex: 1; /* %25 */
}

/* Kartlar için genel stil */
.musteri-karti,
.bakiye-karti,
.odeme-dokumu-karti,
.iletisim-karti {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.musteri-karti:hover,
.bakiye-karti:hover,
.odeme-dokumu-karti:hover,
.iletisim-karti:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* Müşteri Bilgileri Kartı */
.musteri-baslik {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.musteri-baslik i {
    font-size: 2.5rem;
    color: #667eea;
}

.musteri-baslik h1 {
    color: #333;
    font-size: 1.8rem;
    font-weight: 600;
}

.musteri-detaylari {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.musteri-satir {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.musteri-satir:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.musteri-ikon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.musteri-ikon i {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.musteri-bilgi {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.musteri-etiket {
    font-weight: 600;
    color: #666;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.musteri-deger {
    color: #333;
    font-weight: 500;
    font-size: 1rem;
}

/* Bakiye Kartı */
.bakiye-baslik {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.bakiye-baslik i {
    font-size: 2rem;
    color: #28a745;
}

.bakiye-baslik h2 {
    color: #333;
    font-size: 1.5rem;
    font-weight: 600;
}

.bakiye-tutar {
    text-align: center;
    margin: 25px 0;
}

.bakiye-tutar .tutar {
    font-size: 3rem;
    font-weight: 700;
    color: #28a745;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.bakiye-yukle-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.bakiye-yukle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* İletişim Kartı */
.iletisim-baslik {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.iletisim-baslik i {
    font-size: 2rem;
    color: #17a2b8;
}

.iletisim-baslik h2 {
    color: #333;
    font-size: 1.5rem;
    font-weight: 600;
}

.iletisim-detaylari {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.iletisim-satir {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.iletisim-satir:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.iletisim-ikon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #17a2b8 0%, #20c997 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.iletisim-ikon i {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.iletisim-bilgi {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.iletisim-etiket {
    font-weight: 600;
    color: #666;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.iletisim-deger {
    color: #333;
    font-weight: 500;
    font-size: 1rem;
}

/* Ödeme Dökümü Kartı */
.dokum-baslik {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.dokum-baslik i {
    font-size: 2rem;
    color: #ff6b6b;
}

.dokum-baslik h2 {
    color: #333;
    font-size: 1.5rem;
    font-weight: 600;
}

.tablo-container {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.odeme-tablosu {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.odeme-tablosu th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
}

.odeme-tablosu td {
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.9rem;
}

.odeme-tablosu tr:hover {
    background-color: #f8f9fa;
}

.islem-turu {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.islem-turu.yukleme {
    background: #d4edda;
    color: #155724;
}

.islem-turu.harcama {
    background: #f8d7da;
    color: #721c24;
}

.tutar-pozitif {
    color: #28a745;
    font-weight: 600;
}

.tutar-negatif {
    color: #dc3545;
    font-weight: 600;
}

/* Modal Popup */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-icerik {
    background-color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalAc 0.3s ease;
}

@keyframes modalAc {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.7);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.modal-baslik {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #f0f0f0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px 15px 0 0;
}

.modal-baslik h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.kapat {
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.kapat:hover {
    color: #ff6b6b;
}

.bakiye-form {
    padding: 25px;
}

.form-grup {
    margin-bottom: 20px;
}

.form-grup label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.form-grup input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-grup input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-grup input[readonly] {
    background-color: #f8f9fa;
    color: #666;
}

.form-butonlar {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.iptal-btn,
.gonder-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.iptal-btn {
    background-color: #6c757d;
    color: white;
}

.iptal-btn:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

.gonder-btn {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
}

.gonder-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.4);
}

/* Giriş Ekranı */
.giris-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.giris-karti {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    padding: 40px;
    width: 100%;
    max-width: 450px;
    text-align: center;
    margin-bottom: 30px;
}

.giris-baslik {
    margin-bottom: 30px;
}

.giris-baslik i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 15px;
}

.giris-baslik h1 {
    color: #333;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.giris-baslik p {
    color: #666;
    font-size: 1rem;
    margin: 0;
}

.giris-form {
    margin-bottom: 25px;
}

.form-grup {
    margin-bottom: 25px;
    text-align: left;
}

.form-grup label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.input-ikon {
    position: absolute;
    left: 15px;
    color: #667eea;
    font-size: 1.1rem;
    z-index: 2;
}

.input-container input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.input-container input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.giris-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.giris-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.giris-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.giris-yardim {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #17a2b8;
}

.giris-yardim p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.giris-yardim i {
    color: #17a2b8;
}

.giris-footer {
    margin-top: auto;
    padding: 20px 0;
    text-align: center;
}

.giris-footer .footer-icerik p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0;
}

/* Footer */
.footer {
    margin-top: 40px;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-icerik {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.footer-icerik p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 400;
    margin: 0;
}

/* Mobil Uyumluluk */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .container {
        gap: 15px;
    }
    
    /* Mobilde üst kartları alt alta yap */
    .ust-kartlar {
        flex-direction: column;
        gap: 15px;
    }
    
    .musteri-karti,
    .bakiye-karti {
        flex: none;
    }
    
    .musteri-karti,
    .bakiye-karti,
    .odeme-dokumu-karti {
        padding: 20px;
    }
    
    .musteri-karti,
    .bakiye-karti,
    .odeme-dokumu-karti,
    .iletisim-karti {
        padding: 20px;
    }
    
    .musteri-baslik h1 {
        font-size: 1.5rem;
    }
    
    .musteri-detaylari {
        grid-template-columns: 1fr;
    }
    
    .musteri-detaylari {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .musteri-satir {
        padding: 12px;
    }
    
    .musteri-ikon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .bakiye-tutar .tutar {
        font-size: 2.5rem;
    }
    
    .odeme-tablosu th,
    .odeme-tablosu td {
        padding: 10px 8px;
        font-size: 0.8rem;
    }
    
    .modal-icerik {
        width: 95%;
        max-width: 95%;
    }
    
    .form-butonlar {
        flex-direction: column;
    }
    
    .islem-turu {
        font-size: 0.7rem;
        padding: 4px 8px;
    }
    
    /* İletişim kartı mobil düzenlemeleri */
    .iletisim-detaylari {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .iletisim-satir {
        padding: 12px;
    }
    
    .iletisim-ikon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    /* Footer mobil düzenlemeleri */
    .footer {
        margin-top: 30px;
        padding: 15px 0;
    }
    
    .footer-icerik {
        padding: 0 15px;
    }
    
    .footer-icerik p {
        font-size: 0.8rem;
    }
    
    /* Giriş ekranı mobil düzenlemeleri */
    .giris-container {
        padding: 15px;
    }
    
    .giris-karti {
        padding: 30px 25px;
        max-width: 100%;
    }
    
    .giris-baslik i {
        font-size: 2.5rem;
    }
    
    .giris-baslik h1 {
        font-size: 1.5rem;
    }
    
    .giris-baslik p {
        font-size: 0.9rem;
    }
    
    .input-container input {
        padding: 12px 12px 12px 40px;
        font-size: 0.95rem;
    }
    
    .giris-btn {
        padding: 12px;
        font-size: 1rem;
    }
    
    .giris-yardim {
        padding: 12px;
    }
    
    .giris-yardim p {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .musteri-baslik {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .bakiye-baslik,
    .dokum-baslik {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .bakiye-tutar .tutar {
        font-size: 2rem;
    }
    
    .odeme-tablosu {
        font-size: 0.75rem;
    }
    
    .odeme-tablosu th,
    .odeme-tablosu td {
        padding: 8px 5px;
    }
}