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

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700;800&display=swap');

body {
    font-family: 'Poppins', sans-serif;
    background: #ffffff;
    height: 100vh;
    overflow: auto;
}


.main-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 40px;
}


.logo-section {
    text-align: center;
    margin-bottom: 40px;
}

.main-logo {
    height: 120px;
    width: auto;
    margin-bottom: 20px;
}

h1 {
    color: #2c3e50;
    font-size: 2.5em;
    font-weight: 700;
    margin: 0;
}





h2,
h3 {
    color: #2c3e50;
    margin-bottom: 25px;
    margin-top: 0;
}

h2 {
    font-size: 2.2em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 35px;
    color: #1a365d;
}

h3 {
    font-size: 1.4em;
    font-weight: 600;
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.proje-info {
    margin-bottom: 30px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #3498db;
}


.odeme-tutar {
    text-align: center;
    margin-bottom: 30px;
}

.tutar-box {
    background: #f0f8ff;
    border: 2px solid #3498db;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tutar-label {
    color: #2c3e50;
    font-size: 1.1em;
    font-weight: 600;
}

.tutar-miktar {
    color: #e74c3c;
    font-size: 2em;
    font-weight: 800;
}

.odeme-tutar p {
    color: #7f8c8d;
    margin: 0;
    font-size: 0.95em;
}

.iban-card {
    background: #ffffff;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.iban-card:hover {
    border-color: #3498db;
}

.banka-info {
    margin-bottom: 8px;
    padding: 8px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #ddd;
}

.banka-info span {
    color: #2c3e50;
    font-weight: 600;
    font-size: 0.9em;
}

.iban-number {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #ddd;
}

.iban-number span {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #2c3e50;
    letter-spacing: 1px;
    font-size: 0.9em;
}

.iban-number button {
    background: #3498db;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.3s ease;
}

.iban-number button:hover {
    background: #2980b9;
}



.form-container {
    max-width: 500px;
    width: 100%;
    padding: 0;
}

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

label {
    display: block;
    margin-bottom: 10px;
    color: #1a365d;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    font-family: 'Poppins', sans-serif;
    background: #ffffff;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #3498db;
}

.form-control:hover {
    border-color: #bbb;
}

.btn {
    padding: 15px 40px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: all 0.3s ease;
    display: block;
    margin: 25px 0 0 0;
    width: 100%;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #2980b9;
}

.btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    opacity: 0.6;
}


.form-section {
    margin-top: 20px;
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: none;
}

.form-section.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-group.half {
    flex: 1;
}

.error-message {
    font-size: 12px;
    margin-top: 5px;
    min-height: 16px;
}


.projeler-grid {
    display: block;
    margin-bottom: 20px;
}

.proje-card {
    max-width: 100%;
    margin: 0 auto 20px;
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-group.half {
        flex: none;
    }
}


.projeler-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.proje-card {
    background: #ffffff;
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    margin-bottom: 20px;
}

.proje-card:hover {
    border-color: #3498db;
}

.proje-card.selected {
    border-color: #3498db;
    background: #f0f8ff;
}

.proje-card.disabled {
    background: #f5f5f5;
    border-color: #ddd;
    color: #999;
    cursor: not-allowed;
    opacity: 0.6;
}

.proje-card.disabled h4 {
    color: #999;
}

.proje-card.disabled p {
    color: #bbb;
}

.proje-card.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: #ddd;
}

#projeSection.disabled {
    opacity: 0.6;
    pointer-events: none;
}

#projeSection.disabled h3 {
    color: #999;
}

#projeSection {
    margin-top: 0;
}

.btn.disabled {
    background: #bdc3c7 !important;
    cursor: not-allowed;
    opacity: 0.6;
}

.proje-card h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.1em;
    font-weight: bold;
}

.proje-card p {
    color: #7f8c8d;
    font-size: 0.9em;
    margin: 0;
}


@media (max-width: 768px) {
    .main-container {
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }

    .main-logo {
        height: 80px;
    }

    .form-container {
        max-width: 100%;
    }

    .projeler-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}
.btn, .btn-primary {
    text-decoration: none !important;
}


@media (max-width: 480px) {
    .main-container {
        padding: 15px;
    }

    h1 {
        font-size: 1.8em;
    }

    .main-logo {
        height: 60px;
    }

    .logo-section {
        margin-bottom: 30px;
    }
}