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

:root {
    --bg-body: #f3f4f6;
    --bg-card: #ffffff;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 40px -10px rgba(0, 0, 0, 0.12);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Vazirmatn', sans-serif;
}

body {
    min-height: 100vh;
    background-color: var(--bg-body);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: var(--text-main);
    background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
    background-size: 20px 20px;
}

.main-wrapper {
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 5px;
}

.logo {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.title h1 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-main);
}

.title p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.card-display {
    perspective: 1000px;

}

.bank-card {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 50%, #3b82f6 100%);
    border-radius: 20px;
    padding: 25px;
    position: relative;
    overflow: hidden;
    color: white;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.bank-card:hover {
    transform: translateY(-5px) rotateX(2deg);
    box-shadow: var(--shadow-hover);
}

.bank-card::before,
.bank-card::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.bank-card::before {
    width: 150px;
    height: 150px;
    top: -50px;
    right: -50px;
}

.bank-card::after {
    width: 100px;
    height: 100px;
    bottom: -20px;
    left: -20px;
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 2;
}

.chip {
    width: 45px;
    height: 32px;
    background: linear-gradient(135deg, #fbbf24, #d97706);
    border-radius: 6px;
    position: relative;
}

.chip::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    background: rgba(0, 0, 0, 0.2);
}

.card-type {
    font-weight: 800;
    font-style: italic;
    font-size: 18px;
    letter-spacing: 1px;
    position: relative;
    z-index: 2;
}

.card-number {
    font-size: 22px;
    letter-spacing: 3px;
    font-family: 'Courier New', monospace;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin: 10px 0;
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    position: relative;
    z-index: 2;
}

.card-bottom span {
    display: block;
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 2px;
}

.card-bottom strong {
    font-size: 14px;
    font-weight: 600;
}

.form-container {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 24px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-color);
}

.form-container h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-main);
}

.payment-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.form-row .input-group {
    flex: 1;
}

.otp-btn {
    height: 52px;
    padding: 0 18px;

    border: 1px solid #2563eb;
    border-radius: 14px;

    background: #eff6ff;
    color: #2563eb;

    font-weight: 600;
    cursor: pointer;

    transition: .2s;
}

.otp-btn:hover {
    background: #2563eb;
    color: #fff;
}


.input-group {
    position: relative;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    background: #f9fafb;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 15px;
    outline: none;
    transition: all 0.2s;
}

.input-group input:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.input-group label {
    font-weight: bolder;
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: 0.2s ease all;
    font-size: 14px;
    background: transparent;
    padding: 0 4px;
}

.input-group input:focus~label,
.input-group input:not(:placeholder-shown)~label {
    top: 0;
    right: 12px;
    font-size: 11px;
    color: var(--primary);
    background: #fff;
    border-radius: 4px;
}

.pay-btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 14px;
    background: var(--primary);
    color: white;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.pay-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .bank-card {
        height: 180px;
    }
    
    .card-number {
        font-size: 18px;
    }
}
.card-row {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    gap: 15px;
}

.card-input-wrapper {
    width: 100%;
    display: flex;
    gap: 10px;
}

.card-input-wrapper input {
    width: 100%;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 10px 0;
}

.card-input-wrapper label {
    position: absolute;
    top: -10px;
    right: 10px;
    background: white;
    padding: 0 5px;
    font-size: 12px;
    color: var(--text-muted);
    z-index: 1;
}
.expiry-group {
    position: relative;
    display: flex;
    align-items: center;
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 0 12px;
    width: 200px;
    transition: all 0.2s;
    /* border: 1px solid black; */
}

.expiry-group:focus-within {
    background-color: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.expiry-group label {
    position: absolute;
    top: -10px;
    right: 1px;
    /* background-color: #f4f4f480; */
    border-radius: 10px;
    padding: 0px 10px;
    font-size: 12px;
    color: #6b7280;
    font-weight: 500;
}

.expiry-group input {
    border: none;
    background: transparent;
    padding: 14px 0;
    text-align: center;
    font-size: 15px;
    width: 40px;
    outline: none;
    color: #1f2937;
    font-weight: 600;
}

.expiry-group .separator {
    color: #9ca3af;
    font-size: 18px;
    margin: 0 8px;
    font-weight: bold;
}
input.error {
   color: red;
}