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

:root {
    --primary: #ff69b4;
    --primary-dark: #ff1493;
    --primary-light: #ffb6d9;
    --secondary: #ffc0cb;
    --accent: #ff85c0;
    --gradient-1: linear-gradient(135deg, #ff69b4 0%, #ff1493 100%);
    --gradient-2: linear-gradient(135deg, #ffc0cb 0%, #ff69b4 100%);
    --gradient-3: linear-gradient(135deg, #ffb6d9 0%, #ff85c0 100%);
    --bg-gradient: linear-gradient(135deg, #fff5f8 0%, #ffe4f0 100%);
    --text-dark: #4a0e3a;
    --text-light: #8b4a7d;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(255, 105, 180, 0.1);
    --shadow-md: 0 4px 20px rgba(255, 105, 180, 0.2);
    --shadow-lg: 0 10px 40px rgba(255, 105, 180, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-dark);
}

.container {
    width: 100%;
    max-width: 600px;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.payment-card {
    background: var(--white);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.payment-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.card-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.secure-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--gradient-3);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
}

.secure-badge svg {
    flex-shrink: 0;
}

.payment-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-left: 4px;
}

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

.input-icon {
    position: absolute;
    left: 16px;
    width: 20px;
    height: 20px;
    color: var(--primary);
    pointer-events: none;
    z-index: 1;
}

.input-wrapper input,
.input-wrapper select,
.input-wrapper textarea {
    width: 100%;
    padding: 14px 16px 14px 48px;
    border: 2px solid #ffe4f0;
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--white);
    transition: all 0.3s ease;
    outline: none;
}

.input-wrapper textarea {
    resize: vertical;
    min-height: 80px;
    padding: 14px 16px;
}

.form-group textarea {
    padding: 14px 16px;
}

.input-wrapper input:focus,
.input-wrapper select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 105, 180, 0.1);
}

.input-wrapper input::placeholder,
.input-wrapper textarea::placeholder {
    color: #c4a5bd;
}

.amount-wrapper {
    position: relative;
}

.currency {
    position: absolute;
    right: 16px;
    font-weight: 600;
    color: var(--primary);
    pointer-events: none;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23ff69b4' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 48px;
}

.submit-btn {
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(255, 20, 147, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 20, 147, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.payment-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: #fff5f8;
    border-radius: 12px;
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

.payment-info svg {
    flex-shrink: 0;
    color: var(--primary);
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 20px;
    border-radius: 24px;
    z-index: 10;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid #ffe4f0;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
}

.message {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 40px;
    border-radius: 24px;
    text-align: center;
    z-index: 11;
}

.message.active {
    display: flex;
}

.message svg {
    color: var(--primary);
}

.message h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.message p {
    font-size: 15px;
    color: var(--text-light);
    margin: 0;
    max-width: 400px;
}

.error-message svg,
.error-message h3 {
    color: #ff4757;
}

.retry-btn {
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    border-radius: 12px;
    padding: 12px 32px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.footer {
    text-align: center;
    margin-top: 32px;
    color: var(--text-light);
}

.footer p {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
}

.payment-methods {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
}

.payment-methods span {
    background: var(--white);
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 640px) {
    .payment-card {
        padding: 24px;
    }

    .card-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .card-header h1 {
        font-size: 24px;
    }

    .secure-badge {
        font-size: 12px;
        padding: 6px 12px;
    }

    .payment-form {
        gap: 20px;
    }

    .input-wrapper input,
    .input-wrapper select {
        font-size: 16px;
    }

    .submit-btn {
        font-size: 15px;
        padding: 14px 24px;
    }

    .message h3 {
        font-size: 20px;
    }

    .payment-methods {
        gap: 8px;
    }

    .payment-methods span {
        font-size: 12px;
        padding: 6px 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}