/* Payment Form Styles for WordPress Plugin */

/* CSS Variables */
:root {
    --cac-primary-color: #10b981;
    --cac-primary-hover: #059669;
    --cac-secondary-color: #f8fafc;
    --cac-text-primary: #1e293b;
    --cac-text-secondary: #64748b;
    --cac-border-color: #e2e8f0;
    --cac-success-color: #10b981;
    --cac-error-color: #ef4444;
    --cac-warning-color: #f59e0b;
    --cac-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --cac-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --cac-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --cac-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --cac-radius-sm: 0.375rem;
    --cac-radius-md: 0.5rem;
    --cac-radius-lg: 0.75rem;
    --cac-radius-xl: 1rem;
}

/* Main Container */
.cac-payment-container {
    background: white;
    border-radius: var(--cac-radius-xl);
    box-shadow: var(--cac-shadow-xl);
    width: 100%;
    max-width: 480px;
    margin: 2rem auto;
    overflow: hidden;
    backdrop-filter: blur(10px);
    animation: cacFadeInUp 0.6s ease-out;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
}

/* Payment Header */
.cac-payment-header {
    background: linear-gradient(135deg, var(--cac-primary-color) 0%, var(--cac-primary-hover) 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
}

.cac-payment-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="25" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="25" r="1" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.cac-payment-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.cac-payment-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.cac-payment-subtitle {
    opacity: 0.9;
    font-size: 1rem;
    position: relative;
    z-index: 1;
}

/* Payment Form */
.cac-payment-form {
    padding: 2rem;
}

.cac-form-group {
    margin-bottom: 1.5rem;
}

.cac-form-label {
    display: block;
    font-weight: 500;
    color: var(--cac-text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cac-form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--cac-border-color);
    border-radius: var(--cac-radius-md);
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
    font-family: inherit;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-sizing: border-box;
}

.cac-form-input:focus {
    outline: none;
    border-color: var(--cac-primary-color);
    box-shadow: 0 0 0 3px rgb(16 185 129 / 0.1);
    transform: translateY(-1px);
}

.cac-form-input::placeholder {
    color: var(--cac-text-secondary);
}

/* Input Icons */
.cac-input-icon {
    position: relative;
}

.cac-input-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cac-text-secondary);
    z-index: 1;
}

.cac-input-icon .cac-form-input {
    padding-left: 2.75rem;
}

/* Amount Input */
.cac-amount-input {
    position: relative;
}

.cac-currency-symbol {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-weight: 600;
    color: var(--cac-text-primary);
    z-index: 1;
}

.cac-amount-input .cac-form-input {
    padding-left: 2.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

/* Number input optimization */
input[type="number"].cac-form-input {
    -moz-appearance: textfield;
}

input[type="number"].cac-form-input::-webkit-outer-spin-button,
input[type="number"].cac-form-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Submit Button */
.cac-submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--cac-primary-color) 0%, var(--cac-primary-hover) 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--cac-radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.cac-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--cac-shadow-lg);
}

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

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

.cac-submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.cac-submit-btn:hover::before {
    left: 100%;
}

.cac-btn-loading {
    display: none;
}

.cac-submit-btn.loading .cac-btn-text {
    display: none;
}

.cac-submit-btn.loading .cac-btn-loading {
    display: inline;
}

/* Security Info */
.cac-security-info {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--cac-secondary-color);
    border-radius: var(--cac-radius-md);
    text-align: center;
    font-size: 0.875rem;
    color: var(--cac-text-secondary);
}

.cac-security-icon {
    color: var(--cac-success-color);
    margin-right: 0.5rem;
}

/* Messages */
.cac-message {
    margin: 1rem 2rem;
    padding: 1rem;
    border-radius: var(--cac-radius-md);
    font-size: 0.875rem;
}

.cac-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.cac-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.cac-message.info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* Responsive Design */
@media (max-width: 768px) {
    .cac-payment-container {
        margin: 1rem;
        max-width: none;
    }
    
    .cac-payment-header {
        padding: 2rem 1.5rem;
    }
    
    .cac-payment-form {
        padding: 1.5rem;
    }
    
    .cac-form-group {
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 640px) {
    .cac-payment-container {
        margin: 0.5rem;
        border-radius: var(--cac-radius-lg);
    }
    
    .cac-payment-header {
        padding: 1.5rem 1rem;
    }
    
    .cac-payment-icon {
        font-size: 2.5rem;
        margin-bottom: 0.75rem;
    }
    
    .cac-payment-title {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .cac-payment-subtitle {
        font-size: 0.875rem;
    }
    
    .cac-payment-form {
        padding: 1.25rem 1rem;
    }
    
    .cac-form-group {
        margin-bottom: 1rem;
    }
    
    .cac-form-label {
        font-size: 0.8rem;
        margin-bottom: 0.4rem;
    }
    
    .cac-form-input {
        padding: 0.75rem 0.875rem;
        font-size: 0.95rem;
    }
    
    .cac-input-icon .cac-form-input {
        padding-left: 2.5rem;
    }
    
    .cac-amount-input .cac-form-input {
        font-size: 1.1rem;
        padding-left: 2.25rem;
    }
    
    .cac-currency-symbol {
        left: 0.875rem;
    }
    
    .cac-submit-btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
        min-height: 48px;
    }
    
    .cac-security-info {
        margin-top: 1rem;
        padding: 0.875rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .cac-payment-container {
        margin: 0.25rem;
    }
    
    .cac-payment-header {
        padding: 1.25rem 0.875rem;
    }
    
    .cac-payment-icon {
        font-size: 2rem;
    }
    
    .cac-payment-title {
        font-size: 1.25rem;
    }
    
    .cac-payment-form {
        padding: 1rem 0.875rem;
    }
    
    .cac-form-input {
        padding: 0.7rem 0.8rem;
    }
    
    .cac-input-icon .cac-form-input {
        padding-left: 2.3rem;
    }
    
    .cac-input-icon i {
        left: 0.8rem;
        font-size: 0.9rem;
    }
    
    .cac-amount-input .cac-form-input {
        padding-left: 2rem;
    }
    
    .cac-currency-symbol {
        left: 0.8rem;
        font-size: 0.9rem;
    }
    
    .cac-submit-btn {
        padding: 0.8rem 1.25rem;
        font-size: 0.9rem;
    }
}

/* Animations */
@keyframes cacFadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --cac-text-primary: #f1f5f9;
        --cac-text-secondary: #94a3b8;
        --cac-border-color: #334155;
        --cac-secondary-color: #1e293b;
    }
    
    .cac-payment-container {
        background: #0f172a;
    }
    
    .cac-form-input {
        background: #1e293b;
        color: #f1f5f9;
    }
}

/* iOS input zoom prevention */
@media screen and (-webkit-min-device-pixel-ratio: 2) {
    .cac-form-input {
        font-size: 16px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .cac-submit-btn:hover {
        transform: none;
        box-shadow: var(--cac-shadow-md);
    }
    
    .cac-form-input:focus {
        transform: none;
    }
}

.cac-submit-btn:active {
    transform: scale(0.98);
}