@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #6f4b13;
    --secondary-color: #d1a155;
    --text-color: #333;  /*buton yazı renkleri siyah */
    --light-text-color: #777;
    --background-color: #f4f6f8;
     --text-color2: #FFF; /*buton yazı renkleri beyaz */
     --light-text-color2: #d1a155; /*buton renkleri*/
  
    --card-active-bg: linear-gradient(135deg, #000000, #D1A155); 
    --card-default-bg: var(--white); 
    --card-default-text-color: var(--light-text-color);  
    --card-active-text-color: var(--white); 
    --white: #ffffff;
    --border-color: #e0e0e0;
    --error-color: #e74c3c;
    --disabled-color: #e0e0e0; 
}

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

body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 100vh;
    padding-top: 10px;
    color: var(--text-color);
}

.stepper {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
}
.step {
    display: flex;
    align-items: center;
    color: var(--light-text-color);
    font-size: 0.9em;
}
.step .step-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
    background-color: var(--disabled-color);
    color: var(--light-text-color);
}
.step.completed .step-icon {
    background-color: var(--secondary-color);
    color: var(--white);
}
.step.completed .step-icon svg { width: 14px; height: 14px; fill: var(--white); }
.step.active .step-icon {
    background-color: var(--primary-color);
    color: var(--white);
}
.step.active span { color: var(--text-color); font-weight: 500; }
.step-line { width: 40px; height: 2px; background-color: var(--border-color); margin: 0 15px; }


.payment-container {
    display: flex;
    width: 100%;
    max-width: 850px;
    background-color: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.payment-info-panel {
    flex: 0 0 38%;
    background: #2b2419;
    background-image: url("data:image/svg+xml,%3Csvg width='52' height='26' viewBox='0 0 52 26' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M10 10c0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6h2c0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4v2c-3.314 0-6-2.686-6-6 0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6zm25.464-1.95l8.486 8.486-1.414 1.414-8.486-8.486 1.414-1.414z' /%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    padding: 50px 30px;
    color: var(--white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
}
.amount-display {
    text-align: center;
}
.amount-display .label { font-size: 0.9em; opacity: 0.8; margin-bottom: 5px; }
.amount-display .value { font-size: 2.8em; font-weight: 600; line-height: 1; }
.amount-display .currency { font-size: 1.8em; font-weight: 300; margin-left: 5px; }


.credit-card-container { 
    width: 280px; 
    height: 175px; 
    perspective: 1000px;
    margin-top: 20px; 
}

.credit-card-visual { 
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0.0, 0.2, 1);
    border-radius: 15px; 
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1); 
    opacity: 0.7; 
 
}
.credit-card-visual.active { 
    opacity: 1;
}

.card-face { 
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 15px; 
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-family: 'Poppins', sans-serif;
    overflow: hidden; 
}

.card-front {
    background: var(--card-default-bg);
    color: var(--card-default-text-color);
    z-index: 2; 
}
.credit-card-visual.active .card-front {
    background: var(--card-active-bg);
    color: var(--card-active-text-color);
}

.card-front .chip {
    width: 45px;
    height: 35px;
    background-color: #B0B0B0; 
    border-radius: 5px;
}
.credit-card-visual.active .card-front .chip {
    background-color: #cbba7c; 
}

.card-front .card-type-logo {
    position: absolute;
    top: 20px;
    right: 20px; 
    height: 40px; 
}
.card-front .card-type-logo img {
    height: 100%;
    display: none; 
}
.credit-card-visual.active .card-front .card-type-logo img {

}


.card-front .card-number-display {
    font-size: 0.95em;
    letter-spacing: 1px; 
    margin-top: 15px;
    font-family: 'Courier New', Courier, monospace;
    text-align: center;
}

.card-front .card-details-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    font-size: 0.85em;
}
.credit-card-visual.active .card-front .card-details-row {
    color: rgba(255,255,255,0.85); 
}

.card-front .card-holder-display {
    text-transform: uppercase;
    max-width: 65%; 
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.card-front .card-expiry-label {
    font-size: 0.7em;
    display: block;
    margin-bottom: 2px;
    text-align: right;
    opacity: 0.7;
}
.credit-card-visual.active .card-front .card-expiry-label {
     opacity: 0.8;
}



.card-back {
    background: var(--card-default-bg);
    color: var(--card-default-text-color);
    transform: rotateY(180deg);
    z-index: 1;
    align-items: center; 
}
.credit-card-visual.active .card-back {
    background: var(--card-active-bg);
    color: var(--card-active-text-color);
}

.card-back .magnetic-stripe {
    width: calc(100% + 40px); 
    height: 45px;
    background-color: #333;
    margin: -20px -20px 20px -20px; 
}
.credit-card-visual.active .card-back .magnetic-stripe {
    background-color: #222; 
}

.card-back .signature-area {
    width: 100%;
    height: 35px;
    background-color: #f0f0f0;
    margin-bottom: 15px;
    padding: 5px 10px;
    font-size: 0.7em;
    color: #555;
    text-align: right;
    font-style: italic;

}
.credit-card-visual.active .card-back .signature-area {
    background-color: rgba(255,255,255,0.15);
    /* border-color: rgba(255,255,255,0.4); */
    color: rgba(255,255,255,0.7);
}
.card-back .signature-area span { 
     margin-right: 50px; 
}


.card-back .cvc-display-area {
    width: 100%;
    text-align: right; 
    margin-bottom:10px; 
}

.card-back .cvc-label-text { 
    font-size: 0.7em;
    display: block;
    margin-bottom: 2px;
    opacity: 0.7;
}
.credit-card-visual.active .card-back .cvc-label-text {
    opacity: 0.8;
}

.card-back .cvc-value-box { 
    display: inline-block; 
    background-color: var(--white);
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: 4px;
    min-width: 50px; 
    font-family: 'Courier New', Courier, monospace;
    font-size: 1em;
    letter-spacing: 1px;
}

.card-back .card-type-logo-back {
    position: absolute;
    bottom: 15px;
    left: 20px;
    height: 25px; 
    opacity: 0.6;
}
.card-back .card-type-logo-back img {
    height: 100%;
    display: none; /* JS ile görünür olacak */
}
/*.credit-card-visual.active .card-back .card-type-logo-back {
    opacity: 0.8;
    filter: brightness(0) invert(1);
}

*/
.credit-card-visual.flipped {
    transform: rotateY(180deg);
}



.payment-form-panel {
    flex: 1;
    padding: 40px 50px;
    position: relative;
    min-height: 480px; 
    display: flex;
    flex-direction: column;
}

.form-step {
    display: none;
    width: 100%;
    animation: fadeIn 0.5s ease-in-out;
    flex-grow:1;
}
.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.payment-form-panel h2 {
    font-size: 1.4em; font-weight: 600; margin-bottom: 30px;
}
.form-group {
    margin-bottom: 25px; position: relative;
}
.form-group label {
    position: absolute; top: 10px; left: 0; font-size: 0.9em; color: var(--light-text-color); pointer-events: none; transition: all 0.2s ease;
}
.form-group input, .form-group select {
    width: 100%; padding: 10px 0 8px 0; border: none; border-bottom: 1px solid var(--border-color); background-color: transparent; font-size: 1em; color: var(--text-color); outline: none; transition: border-color 0.3s ease;
}
.form-group input:focus, .form-group select:focus { border-bottom-color: var(--primary-color); }

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group select:valid + label, 
.form-group select:focus + label {
    top: -12px; font-size: 0.75em; color: var(--primary-color);
}

.form-group select:required:invalid + label {
  
}
.form-group select option[value=""][disabled] {
    color: #ccc; 
}


.form-group input::placeholder { color: transparent; } 

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23777777' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0px center;
    background-size: 1.2em;
    padding-right: 1.5em;
}


.expiry-cvc-row {
    display: flex; gap: 20px;
}
.expiry-cvc-row .form-group { flex: 1; }

.expiry-cvc-row .form-group input#cvc + label[for="cvc"] {

}


.form-error {
    font-size: 0.8em; color: var(--error-color); margin-top: 4px; display: block;
}

.step-navigation {
    display: flex;
    justify-content: flex-end;
    margin-top: auto;
    padding-top: 20px;
}
.navigation-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: inline-flex;
    align-items: center;
}
.navigation-btn:hover { background-color: #d1a155; }
.navigation-btn:disabled { background-color: var(--disabled-color); color: var(--light-text-color); cursor: not-allowed; }
.navigation-btn svg { width: 16px; height: 16px; fill: var(--white); margin-left: 8px; }


.service-selection-box {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.service-selection-box h3 {
    font-size: 1em;
    font-weight: 500;
    margin-bottom: 15px;
    color: var(--text-color);
}
.service-selection-box .form-group {
    margin-bottom: 15px;
}


.payment-result {
    position: fixed; top: 20px; left: 50%; transform: translateX(-50%); padding: 15px 25px; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); z-index: 1000; font-size: 0.95em;
}
.payment-result.success { background-color: var(--secondary-color); color: var(--white); }
.payment-result.error { background-color: var(--error-color); color: var(--white); }


@media (max-width: 768px) {
    body 
    .payment-container { flex-direction: inherit; max-width: 95%; border-radius: 15px; }
    .payment-info-panel { flex: 0 0 auto; padding: 30px 20px; border-top-left-radius: 15px; border-top-right-radius: 15px; border-bottom-left-radius: 0; }
    .credit-card-container { 
        width: 100%;
        max-width: 260px; 
        height: auto;
        aspect-ratio: 1.58 / 1; 
        margin: 20px auto; 
    }
    .payment-form-panel { padding: 30px 25px; min-height: auto; }
    .step-navigation { justify-content: space-between; }
    #prevStepBtn-2 { margin-right: 10px;}
    .navigation-btn { width: auto; flex-grow:1; justify-content: center; }
    .navigation-btn:last-child { margin-left: 5px;}
    .expiry-cvc-row { flex-direction: inherit; gap: 0; }
    .expiry-cvc-row .form-group { margin-bottom: 20px; }
}

@media (max-width: 480px) {
    .payment-form-panel { padding: 25px 15px; }
    .payment-form-panel h2 { font-size: 1.2em; margin-bottom: 20px; }
    .form-group label { font-size: 0.85em; }
    .form-group input, .form-group select { font-size: 0.95em; }
    .form-group input:focus + label,
    .form-group input:not(:placeholder-shown) + label,
    .form-group select:valid + label,
    .form-group select:focus + label {
        font-size: 0.7em;
    }
    .navigation-btn { padding: 12px 15px; font-size: 0.85em; }
}