:root {
    --primary: #007aff;
    --primary-hover: #0056cc;
    --primary-light: #3395ff;
    --secondary: #5856d6;
    --secondary-hover: #4b4acf;
    --success: #34c759;
    --error: #ff3b30;
    --warning: #ff9500;

    /* Advanced Liquid Glass Properties */
    --background: linear-gradient(
        135deg,
        #0a0a0a 0%,
        #1a1a2e 50%,
        #16213e 100%
    );

    /* Inner shadow controls */
    --shadow-offset: 0;
    --shadow-blur: 20px;
    --shadow-spread: -5px;
    --shadow-color: rgba(255, 255, 255, 0.4);

    /* Glass tint controls */
    --tint-color: 255, 255, 255;
    --tint-opacity: 0.08;
    --tint-opacity-hover: 0.12;
    --tint-opacity-elevated: 0.1;

    /* Background frost blur */
    --frost-blur: 12px;
    --frost-blur-strong: 20px;

    /* SVG noise/distortion */
    --noise-frequency: 0.006;
    --distortion-strength: 40;

    /* Outer shadow effects */
    --outer-shadow-sm: 0px 4px 16px rgba(0, 0, 0, 0.15);
    --outer-shadow-md: 0px 8px 32px rgba(0, 0, 0, 0.2);
    --outer-shadow-lg: 0px 16px 64px rgba(0, 0, 0, 0.25);

    /* Text colors */
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.75);
    --text-muted: rgba(255, 255, 255, 0.55);

    /* Border colors */
    --border-glass: rgba(255, 255, 255, 0.15);
    --border-glass-light: rgba(255, 255, 255, 0.25);

    /* Input specific */
    --input-border-focus: rgba(0, 122, 255, 0.6);

    /* Border radius */
    --radius: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
}

* {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background-color: black;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display',
        'Helvetica Neue', sans-serif;
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background image layer */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('./assets/tech-background.jpg'); /* Default path - user can change */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 0.15; /* Subtle background image */
    z-index: -2;
    filter: blur(1px) brightness(0.8) contrast(1.2);
}

/* Dynamic background with animated gradient overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        /* Dark overlay for better text readability */ linear-gradient(
            135deg,
            rgba(10, 10, 10, 0.4) 0%,
            rgba(26, 26, 46, 0.3) 50%,
            rgba(22, 33, 62, 0.4) 100%
        ),
        /* Animated color accents */
            radial-gradient(
                circle at 20% 80%,
                rgba(0, 122, 255, 0.08) 0%,
                transparent 50%
            ),
        radial-gradient(
            circle at 80% 20%,
            rgba(88, 86, 214, 0.08) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 40% 40%,
            rgba(52, 199, 89, 0.04) 0%,
            transparent 50%
        );
    animation: backgroundShift 20s ease-in-out infinite;
    z-index: -1;
}

@keyframes backgroundShift {
    0%,
    100% {
        transform: translateX(0) translateY(0);
    }
    33% {
        transform: translateX(-20px) translateY(-10px);
    }
    66% {
        transform: translateX(20px) translateY(10px);
    }
}

/* Advanced Liquid Glass Card Component */
.modern-card {
    position: relative;
    border-radius: var(--radius-xl);
    cursor: pointer;
    isolation: isolate;
    box-shadow: var(--outer-shadow-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-glass);
}

.modern-card::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: var(--radius-xl);
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        var(--shadow-blur) var(--shadow-spread) var(--shadow-color);
    background-color: rgba(var(--tint-color), var(--tint-opacity));
}

.modern-card::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: var(--radius-xl);
    backdrop-filter: blur(var(--frost-blur));
    filter: url(#glass-distortion);
    isolation: isolate;
    -webkit-backdrop-filter: blur(var(--frost-blur));
    -webkit-filter: url('#glass-distortion');
}

.modern-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--outer-shadow-lg);
}

.modern-card:hover::before {
    background-color: rgba(var(--tint-color), var(--tint-opacity-hover));
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        calc(var(--shadow-blur) * 1.2) var(--shadow-spread) var(--shadow-color);
}

.modern-card:hover::after {
    backdrop-filter: blur(var(--frost-blur-strong));
    -webkit-backdrop-filter: blur(var(--frost-blur-strong));
}

.card-header {
    padding: 2rem 2rem 0 2rem;
    position: relative;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0;
    color: var(--text-primary);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.card-content {
    padding: 2rem;
    position: relative;
}

/* Liquid Glass Button Styles */
.btn {
    border-radius: var(--radius-lg);
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: var(--blur-sm);
    -webkit-backdrop-filter: var(--blur-sm);
}

.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 0.6s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(
        135deg,
        rgba(0, 122, 255, 0.8) 0%,
        rgba(0, 122, 255, 0.9) 100%
    );
    color: white;
    padding: 1rem 2rem;
    border: 1px solid rgba(0, 122, 255, 0.3);
    box-shadow: var(--glass-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(
        135deg,
        rgba(0, 122, 255, 0.9) 0%,
        rgba(0, 122, 255, 1) 100%
    );
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--glass-shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.3),
        var(--glass-glow);
}

.btn-secondary {
    background: var(--surface-glass-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    padding: 1rem 2rem;
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    box-shadow: var(--glass-shadow-sm);
}

.btn-secondary:hover {
    background: var(--surface-glass-hover);
    border-color: var(--border-glass-light);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--glass-shadow-md);
}

.btn-success {
    background: linear-gradient(
        135deg,
        rgba(52, 199, 89, 0.8) 0%,
        rgba(52, 199, 89, 0.9) 100%
    );
    color: white;
    padding: 1rem 2rem;
    border: 1px solid rgba(52, 199, 89, 0.3);
    box-shadow: var(--glass-shadow-sm);
}

.btn-error {
    background: linear-gradient(
        135deg,
        rgba(255, 59, 48, 0.8) 0%,
        rgba(255, 59, 48, 0.9) 100%
    );
    color: white;
    padding: 1rem 2rem;
    border: 1px solid rgba(255, 59, 48, 0.3);
    box-shadow: var(--glass-shadow-sm);
}

/* Form Field Styling */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.5;
    transition: all 0.2s ease;
}

.form-input:focus {
    border-color: var(--input-border-focus);
    outline: none;
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-input:hover {
    border-color: var(--primary-light);
}

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

/* Liquid Glass SDK Field Styling */
#card-details {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
}

/* Force grid layout for expiry and CVC side by side */
#card-details > div:nth-child(2) {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 1rem !important;
}

/* Reset all SDK elements */
#card-details * {
    box-sizing: border-box !important;
}

#card-details input {
    all: unset !important;
    box-sizing: border-box !important;
}

/* Liquid Glass SDK input fields */
.sb-field-card,
.sb-field-name,
.sb-field-expiryDate,
.sb-field-cvc {
    display: block !important;
    width: 100% !important;
    height: 56px !important;
    padding: 1rem 1.25rem !important;
    background: var(--input-glass) !important;
    backdrop-filter: var(--blur-sm) !important;
    -webkit-backdrop-filter: var(--blur-sm) !important;
    border: 1px solid var(--input-border-glass) !important;
    border-radius: var(--radius-lg) !important;
    color: var(--text-primary) !important;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display',
        'Helvetica Neue', sans-serif !important;
    font-size: 1rem !important;
    font-weight: 500 !important;
    line-height: 1.5 !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: var(--glass-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
}

.sb-field-card:focus,
.sb-field-name:focus,
.sb-field-expiryDate:focus,
.sb-field-cvc:focus {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: var(--input-border-focus) !important;
    outline: none !important;
    box-shadow: var(--glass-shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.15),
        0 0 0 4px rgba(0, 122, 255, 0.1) !important;
    transform: scale(1.01) !important;
}

.sb-field-card:hover,
.sb-field-name:hover,
.sb-field-expiryDate:hover,
.sb-field-cvc:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
}

/* Liquid Glass field labels */
.sb-field-label-card,
.sb-field-label-name,
.sb-field-label-expiryDate,
.sb-field-label-cvc {
    display: block !important;
    margin-bottom: 0.75rem !important;
    color: var(--text-secondary) !important;
    font-size: 0.875rem !important;
    font-weight: 600 !important;
    letter-spacing: -0.01em !important;
    text-transform: uppercase !important;
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display',
        'Helvetica Neue', sans-serif !important;
    opacity: 0.8 !important;
}

/* Error states for SDK fields */
.sb-field-card.error,
.sb-field-name.error,
.sb-field-expiryDate.error,
.sb-field-cvc.error {
    border-color: var(--error) !important;
    animation: shake 0.3s ease-in-out !important;
}

@keyframes shake {
    0%,
    100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-5px);
    }
    75% {
        transform: translateX(5px);
    }
}

/* Validation messages */
.validation-message {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--error);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.validation-message.show {
    opacity: 1;
    transform: translateY(0);
}

/* Liquid Glass Input Styles */
.modern-input {
    background: var(--input-glass);
    backdrop-filter: var(--blur-sm);
    -webkit-backdrop-filter: var(--blur-sm);
    border: 1px solid var(--input-border-glass);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    width: 100%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--glass-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.modern-input:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--input-border-focus);
    outline: none;
    box-shadow: var(--glass-shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.15),
        0 0 0 4px rgba(0, 122, 255, 0.1);
    transform: scale(1.01);
}

.modern-input:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.modern-input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

/* Advanced Liquid Glass Payment Method Cards */
.payment-method {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    cursor: pointer;
    isolation: isolate;
    box-shadow: var(--outer-shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-glass);
}

.payment-method::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        var(--shadow-blur) var(--shadow-spread) var(--shadow-color);
    background-color: rgba(var(--tint-color), var(--tint-opacity-elevated));
}

.payment-method::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--frost-blur));
    filter: url(#glass-distortion);
    isolation: isolate;
    -webkit-backdrop-filter: blur(var(--frost-blur));
    -webkit-filter: url('#glass-distortion');
}

.payment-method:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--outer-shadow-md);
}

.payment-method:hover::before {
    background-color: rgba(var(--tint-color), var(--tint-opacity-hover));
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        calc(var(--shadow-blur) * 1.1) var(--shadow-spread) var(--shadow-color);
}

.payment-method:hover::after {
    backdrop-filter: blur(var(--frost-blur-strong));
    -webkit-backdrop-filter: blur(var(--frost-blur-strong));
}

.payment-method-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.payment-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
}

.payment-method-text {
    font-weight: 500;
    color: var(--text-primary);
}

.payment-brand-icon {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
}

.klarna-icon {
    background-color: #ec4899;
}

.vipps-icon {
    background-color: #f97316;
}

.acctoacc-icon {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 0 10px rgba(0, 122, 255, 0.3);
}

/* Bank Selection Items (liquid glass pattern) */
.bank-item {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 1rem;
    cursor: pointer;
    isolation: isolate;
    box-shadow: var(--outer-shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bank-item::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        var(--shadow-blur) var(--shadow-spread) var(--shadow-color);
    background-color: rgba(var(--tint-color), var(--tint-opacity-elevated));
}

.bank-item::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--frost-blur));
    filter: url(#glass-distortion);
    isolation: isolate;
    -webkit-backdrop-filter: blur(var(--frost-blur));
    -webkit-filter: url('#glass-distortion');
}

.bank-item:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--outer-shadow-md);
}

.bank-item:hover::before {
    background-color: rgba(var(--tint-color), var(--tint-opacity-hover));
    box-shadow: inset var(--shadow-offset) var(--shadow-offset)
        calc(var(--shadow-blur) * 1.1) var(--shadow-spread) var(--shadow-color);
}

.bank-item:hover::after {
    backdrop-filter: blur(var(--frost-blur-strong));
    -webkit-backdrop-filter: blur(var(--frost-blur-strong));
}

/* Bank Logo Styling */
.bank-logo {
    width: 3rem;
    height: 2rem;
    object-fit: contain;
    border-radius: var(--radius);
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 0.25rem;
}

.bank-logo:error,
.bank-logo[src=''] {
    background: var(--surface-glass-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Bank Info */
.bank-info {
    flex: 1;
    position: relative;
    z-index: 1;
}

.bank-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.bank-country {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

/* Loading State */
.bank-list-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--border-glass);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.75rem;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Modal backdrop with liquid glass effect */
#bank-selection-modal {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* Empty state */
.bank-list-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

/* Status Badge */
.status-badge {
    border-radius: 9999px;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-pending {
    background-color: rgb(251 191 36 / 0.1);
    color: rgb(180 83 9);
}

.status-completed {
    background-color: rgb(34 197 94 / 0.1);
    color: rgb(21 128 61);
}

.status-failed {
    background-color: rgb(239 68 68 / 0.1);
    color: rgb(185 28 28);
}

[data-theme='dark'] .status-pending {
    background-color: rgb(251 191 36 / 0.2);
    color: rgb(251 191 36);
}

[data-theme='dark'] .status-completed {
    background-color: rgb(34 197 94 / 0.2);
    color: rgb(34 197 94);
}

[data-theme='dark'] .status-failed {
    background-color: rgb(239 68 68 / 0.2);
    color: rgb(239 68 68);
}

/* Liquid Glass Message Cards */
.message-card {
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    box-shadow: var(--glass-shadow-md);
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.message-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 100%
    );
}

.message-success {
    background: rgba(52, 199, 89, 0.15);
    border: 1px solid rgba(52, 199, 89, 0.3);
    color: rgba(52, 199, 89, 0.95);
    box-shadow: var(--glass-shadow-md), 0 0 20px rgba(52, 199, 89, 0.1);
}

.message-error {
    background: rgba(255, 59, 48, 0.15);
    border: 1px solid rgba(255, 59, 48, 0.3);
    color: rgba(255, 59, 48, 0.95);
    box-shadow: var(--glass-shadow-md), 0 0 20px rgba(255, 59, 48, 0.1);
}

/* Liquid Glass Logs styling */
.logs-container {
    background: var(--surface-glass);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    font-family: 'SF Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    box-shadow: var(--glass-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.logs-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%
    );
}

.log-entry {
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-weight: 400;
    line-height: 1.5;
}

.log-entry:last-child {
    border-bottom: none;
}

/* Liquid Glass Dropdown improvements */
.dropdown-content {
    background: var(--surface-glass-elevated);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    box-shadow: var(--glass-shadow-lg);
    overflow: hidden;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease;
}

/* Liquid Glass Security features */
.security-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--surface-glass-elevated);
    backdrop-filter: var(--blur-sm);
    -webkit-backdrop-filter: var(--blur-sm);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: var(--glass-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.security-icon {
    width: 18px;
    height: 18px;
    color: var(--success);
    filter: drop-shadow(0 0 4px rgba(52, 199, 89, 0.3));
}

/* Card type detection */
.card-input-wrapper {
    position: relative;
}

.card-type-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--surface-elevated);
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.card-type-icon.show {
    opacity: 1;
}

.card-input-wrapper .form-input {
    padding-right: 3rem;
}

/* Background Image Utilities */
/* To use different background images, add these classes to the body element:
   
   - .bg-subtle: More subtle background image (opacity: 0.1)
   - .bg-prominent: More prominent background image (opacity: 0.25)
   - .bg-blur-soft: Softer blur effect
   - .bg-blur-strong: Stronger blur effect
   - .bg-parallax: Parallax scrolling effect
*/

body.bg-subtle::after {
    opacity: 0.1;
}

body.bg-prominent::after {
    opacity: 0.25;
}

body.bg-blur-soft::after {
    filter: blur(0.5px) brightness(0.9) contrast(1.1);
}

body.bg-blur-strong::after {
    filter: blur(2px) brightness(0.7) contrast(1.3);
}

body.bg-parallax::after {
    background-attachment: scroll;
    transform: translateZ(0);
    will-change: transform;
}

/* Custom background images - user can override these */
body.bg-tech::after {
    background-image: url('./assets/tech-background.jpg');
}

body.bg-nature::after {
    background-image: url('./assets/nature-background.jpg');
}

body.bg-abstract::after {
    background-image: url('./assets/abstract-background.jpg');
}

body.bg-gradient::after {
    background-image: none;
    background: linear-gradient(
        135deg,
        rgba(0, 122, 255, 0.1) 0%,
        rgba(88, 86, 214, 0.1) 50%,
        rgba(52, 199, 89, 0.1) 100%
    );
}

/* Additional Liquid Glass Enhancements */
h1,
h2,
h3 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Scrollbar styling for Liquid Glass theme */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-glass);
    border-radius: var(--radius);
}

::-webkit-scrollbar-thumb {
    background: var(--border-glass-light);
    border-radius: var(--radius);
    backdrop-filter: var(--blur-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-glass-light);
    box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.1);
}

/* Responsive improvements */
@media (max-width: 768px) {
    .modern-card {
        margin: 0.5rem;
    }

    .card-header {
        padding: 1rem 1.5rem 0 1.5rem;
    }

    .card-content {
        padding: 1rem 1.5rem 1.5rem 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* Stack fields vertically on mobile */
    #card-details > div:nth-child(2) {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    /* Mobile background adjustments */
    body::after {
        background-attachment: scroll;
        background-size: cover;
    }

    /* Mobile adjustments for bank selection modal */
    #bank-selection-modal .modern-card {
        margin: 1rem;
        max-height: 80vh;
    }

    .bank-item {
        padding: 0.75rem;
    }

    .bank-logo {
        width: 2.5rem;
        height: 1.5rem;
    }
}