/* Dynamic Pricing System CSS */
/* Based on the systems-stripe signup.html design system */

/* CSS Variables matching the design system */
:root {
    /* Brand Colors */
    --brand-primary: #ff7b00;
    --brand-secondary: #ff9500;
    --brand-tertiary: #ffb84d;
    
    /* Gradient Combinations */
    --gradient-primary: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 50%, var(--brand-tertiary) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #5a6c7d;
    --text-muted: #6c7b7f;
    --text-light: #95a5a6;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafbfc;
    --bg-muted: #f8f9fa;
    --bg-card: #f8fafc;
    
    /* Status Colors */
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #e74c3c;
    
    /* Border Colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    --border-dark: #a0aec0;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    --shadow-2xl: 0 25px 50px rgba(0,0,0,0.25);
    --shadow-brand: 0 8px 25px rgba(255,123,0,0.3);
    --shadow-brand-lg: 0 15px 40px rgba(255,123,0,0.4);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-base: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* Update existing tier cards for selection state */
.tier-card.selected {
    transform: scale(1.05);
    box-shadow: var(--shadow-brand-lg);
}

.tier-card.selected.flipped {
    transform: rotateY(180deg) scale(1.05);
}

.tier-card.selected .card-side {
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-brand-lg);
}

/* Loading states */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-radius: 50%;
    border-top-color: var(--brand-primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* Error display */
.error-display {
    text-align: center;
    padding: var(--space-8);
    color: var(--danger);
    font-size: 1.125rem;
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    grid-column: 1 / -1;
}

.error-display i {
    font-size: 2rem;
    margin-bottom: var(--space-4);
    display: block;
}

/* Signup Modal */
.signup-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-2xl);
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.4s ease-out;
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10;
}

.modal-close:hover {
    color: var(--text-primary);
}

.signup-form-container {
    padding: var(--space-8);
}

.form-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(255, 123, 0, 0.1);
    transform: translateY(-1px);
}

.form-group input:hover:not(:focus) {
    border-color: var(--border-medium);
}

/* Password strength indicator */
.password-strength {
    height: 3px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    margin-top: var(--space-2);
    overflow: hidden;
    transition: all 0.3s ease;
}

.password-strength-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #e74c3c 0%, #f39c12 50%, #27ae60 100%);
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
}

.password-strength.weak .password-strength-fill {
    width: 33%;
    background: #e74c3c;
}

.password-strength.medium .password-strength-fill {
    width: 66%;
    background: #f39c12;
}

.password-strength.strong .password-strength-fill {
    width: 100%;
    background: #27ae60;
}

.password-help {
    display: block;
    margin-top: var(--space-2);
    font-size: 0.75rem;
    color: var(--text-light);
    line-height: 1.4;
}

/* Signup submit button */
.signup-submit-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-family);
    box-shadow: var(--shadow-brand);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.signup-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-brand-lg);
}

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

.signup-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Button loading state */
.signup-submit-btn .btn-text {
    transition: opacity 0.3s ease;
}

.signup-submit-btn.loading .btn-text {
    opacity: 0;
}

.signup-submit-btn .btn-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.signup-submit-btn.loading .btn-spinner {
    opacity: 1;
}

/* Form terms */
.form-terms {
    text-align: center;
    margin-top: var(--space-4);
    flex-shrink: 0;
}

.form-terms p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    flex-wrap: wrap;
}

.form-terms p i {
    color: var(--success);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.form-terms a {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.form-terms a:hover {
    text-decoration: underline;
}

/* Success content */
.success-content {
    text-align: center;
    padding: var(--space-8);
}

.success-icon {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: var(--space-4);
}

.success-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.success-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.success-content .note {
    color: var(--warning);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-4);
}

.success-details {
    background: var(--bg-card);
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
}

.success-details p {
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
}

.success-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    background: var(--gradient-primary);
    color: var(--text-white);
    text-decoration: none;
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-semibold);
    transition: var(--transition-base);
    box-shadow: var(--shadow-brand);
}

.success-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-brand-lg);
    color: var(--text-white);
}

/* Error message */
.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--danger);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-width: 400px;
    }
    
    .signup-form-container {
        padding: var(--space-6);
    }
    
    .form-header h3 {
        font-size: 1.25rem;
    }
    
    .form-header p {
        font-size: 0.75rem;
    }
    
    .form-group input {
        padding: var(--space-3);
        font-size: 0.875rem;
    }
    
    .signup-submit-btn {
        padding: var(--space-3) var(--space-4);
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        max-width: none;
        margin: var(--space-2);
    }
    
    .signup-form-container {
        padding: var(--space-4);
    }
    
    .form-terms p {
        font-size: 0.625rem;
        line-height: 1.4;
    }
    
    .success-icon {
        font-size: 3rem;
    }
    
    .success-content h3 {
        font-size: 1.25rem;
    }
}

/* Plans container updates */
#plans-container {
    min-height: 200px;
    position: relative;
}

#plans-container:empty::before {
    content: "Loading pricing plans...";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Industry selector improvements */
.industry-selector select {
    width: 100%;
    padding: var(--space-3);
    border: 2px solid var(--brand-primary);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-base);
    font-family: var(--font-family);
}

.industry-selector select:focus {
    outline: none;
    border-color: var(--brand-secondary);
    box-shadow: 0 0 0 3px rgba(255, 123, 0, 0.1);
}

/* Addon section improvements */
.addon-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-primary);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition-base);
    margin-bottom: var(--space-4);
}

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

.addon-info h4 {
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
}

.addon-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0;
    line-height: 1.5;
}

.addon-pricing {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.addon-price {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--brand-primary);
    background: var(--bg-muted);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.addon-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.addon-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--brand-primary);
    cursor: pointer;
}

.addon-checkbox label {
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
}

/* Addon badge styling */
.addon-badge {
    display: inline-block;
    background: var(--brand-primary);
    color: var(--text-white);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    margin-left: var(--space-2);
    vertical-align: middle;
    animation: pulse 2s infinite;
}

/* Disabled addon styling */
.addon-row.addon-disabled {
    opacity: 0.6;
    background: var(--bg-muted);
    pointer-events: none;
}

.addon-row.addon-disabled .addon-info h4 {
    color: var(--text-muted);
}

.addon-row.addon-disabled .addon-info p {
    color: var(--text-light);
}

.addon-row.addon-disabled .addon-price {
    color: var(--text-light);
}

.addon-row.addon-disabled .addon-badge {
    background: var(--text-light);
    color: var(--text-white);
    animation: none;
}

@media (max-width: 768px) {
    .addon-row {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
} 

/* Dynamic Pricing with Card Flip Functionality */

/* Pricing Container */
.three-tier-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    perspective: 1000px;
}

/* Pricing Card with Flip Effect */
.pricing-card {
    position: relative;
    height: 600px;
    width: 100%;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.flipped .card-inner {
    transform: rotateY(180deg);
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 2px solid #e2e8f0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card-back {
    transform: rotateY(180deg);
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

/* Plan Header */
.plan-header {
    padding: 2rem 1.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.plan-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 3s infinite;
}

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

.plan-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.badge-free {
    background: rgba(46, 204, 113, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-popular {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: pulse 2s infinite;
}

.badge-premium {
    background: rgba(155, 89, 182, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-default {
    background: rgba(52, 73, 94, 0.2);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.plan-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.plan-price {
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.price-amount {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
}

.price-period {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

.plan-description {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

/* Plan Features */
.plan-features {
    flex: 1;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.features-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
    color: #4a5568;
}

.features-list li:last-child {
    border-bottom: none;
}

.features-list li i {
    color: var(--primary-color);
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

/* Plan Actions */
.plan-actions {
    padding: 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e2e8f0;
}

.get-started-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.get-started-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

.get-started-btn:hover::before {
    left: 100%;
}

.get-started-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.get-started-btn i {
    margin-right: 0.5rem;
}

/* Signup Form (Card Back) */
.signup-form {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: white;
}

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-align: center;
}

.form-subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #4a5568;
    font-size: 0.9rem;
}

.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 123, 0, 0.1);
}

.form-input::placeholder {
    color: #a0aec0;
}

/* Password Strength Indicator */
.password-strength {
    margin-top: 0.5rem;
}

.strength-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.strength-bar {
    flex: 1;
    height: 4px;
    background: #e2e8f0;
    border-radius: 2px;
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.strength-indicator.very-weak .strength-fill { background: #e53e3e; }
.strength-indicator.weak .strength-fill { background: #dd6b20; }
.strength-indicator.fair .strength-fill { background: #d69e2e; }
.strength-indicator.good .strength-fill { background: #38a169; }
.strength-indicator.strong .strength-fill { background: #00b894; }

.strength-text {
    font-weight: 600;
    min-width: 80px;
}

.strength-indicator.very-weak .strength-text { color: #e53e3e; }
.strength-indicator.weak .strength-text { color: #dd6b20; }
.strength-indicator.fair .strength-text { color: #d69e2e; }
.strength-indicator.good .strength-text { color: #38a169; }
.strength-indicator.strong .strength-text { color: #00b894; }

/* Form Actions */
.form-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.signup-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.signup-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

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

.signup-btn.loading .btn-text {
    opacity: 0;
}

.signup-btn.loading .btn-loading {
    opacity: 1;
}

.btn-text, .btn-loading {
    transition: opacity 0.3s ease;
}

.btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.btn-loading i {
    margin-right: 0.5rem;
}

.back-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: white;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
}

.back-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #f8f9fa;
}

.back-btn i {
    margin-right: 0.5rem;
}

/* Error and Success Messages */
.pricing-error, .pricing-success {
    margin-bottom: 2rem;
    padding: 0;
}

.error-message, .success-message {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideDown 0.3s ease;
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    border: 1px solid #feb2b2;
}

.success-message {
    background: #c6f6d5;
    color: #2f855a;
    border: 1px solid #9ae6b4;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .three-tier-pricing {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1rem;
    }
    
    .pricing-card {
        height: 550px;
    }
    
    .plan-header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .plan-name {
        font-size: 1.5rem;
    }
    
    .price-amount {
        font-size: 2.5rem;
    }
    
    .plan-features {
        padding: 1.5rem 1rem;
    }
    
    .features-list li {
        font-size: 0.9rem;
        padding: 0.625rem 0;
    }
    
    .signup-form {
        padding: 1.5rem;
    }
    
    .form-title {
        font-size: 1.3rem;
    }
    
    .form-subtitle {
        font-size: 1rem;
    }
    
    .form-input {
        padding: 0.75rem;
    }
    
    .form-actions {
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    .three-tier-pricing {
        padding: 0.5rem;
    }
    
    .pricing-card {
        height: 500px;
    }
    
    .plan-header {
        padding: 1rem 0.75rem 0.75rem;
    }
    
    .plan-name {
        font-size: 1.3rem;
    }
    
    .price-amount {
        font-size: 2rem;
    }
    
    .plan-features {
        padding: 1rem 0.75rem;
    }
    
    .signup-form {
        padding: 1rem;
    }
} 

/* Final CTA Card Flip Functionality */
.final-cta {
    text-align: center;
    margin-bottom: var(--space-16);
}

.cta-card {
    perspective: 1000px;
    width: 50%;
    max-width: 380px;
    min-width: 320px;
    height: 320px;
    margin: 0 auto;
    position: relative;
    transition: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.cta-card.flipped {
    width: 70%;
    max-width: 550px;
    height: min(520px, 80vh);
}

.cta-card .card-side {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: var(--bg-primary);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-light);
    transition: transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
    transform-style: preserve-3d;
}

.cta-card .card-back {
    transform: rotateY(180deg);
    gap: var(--space-4);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid rgba(255, 123, 0, 0.1);
    box-shadow: var(--shadow-2xl);
    padding: var(--space-6);
    justify-content: flex-start;
}

.cta-card.flipped .card-front {
    transform: rotateY(180deg);
}

.cta-card.flipped .card-back {
    transform: rotateY(0deg);
}

/* Modern Form Styling */
.signup-form {
    width: 100%;
    max-width: 420px;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin: 0 auto;
    justify-content: space-between;
    min-height: 100%;
}

.form-header {
    text-align: center;
    margin-bottom: var(--space-2);
    flex-shrink: 0;
}

.form-header h3 {
    font-size: 1.4rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.form-group {
    position: relative;
    margin-bottom: var(--space-2);
}

.form-input {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(255, 123, 0, 0.1);
    transform: translateY(-1px);
}

.form-input:hover:not(:focus) {
    border-color: var(--border-medium);
}

.form-input::placeholder {
    color: var(--text-light);
    transition: all 0.3s ease;
}

.form-input:focus::placeholder {
    opacity: 0;
    transform: translateY(-10px);
}

/* Input Labels */
.input-label {
    display: block;
    margin-top: var(--space-1);
    font-size: 11px;
    color: var(--text-light);
    opacity: 0.8;
    text-transform: lowercase;
    font-weight: var(--font-weight-medium);
}

/* Password requirements */
.password-requirements {
    margin-top: var(--space-1);
    padding: var(--space-1) 0;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.password-requirements small {
    color: var(--text-light);
    font-size: 11px;
    line-height: 1.4;
}

/* Modern Button Styling */
.cta-submit-btn {
    width: 100%;
    padding: var(--space-4) var(--space-6);
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-family);
    box-shadow: 0 4px 12px rgba(255, 123, 0, 0.3);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 123, 0, 0.4);
}

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

.cta-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Button loading state */
.cta-submit-btn .btn-text {
    transition: opacity 0.3s ease;
}

.cta-submit-btn.loading .btn-text {
    opacity: 0;
}

.cta-submit-btn .btn-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cta-submit-btn.loading .btn-spinner {
    opacity: 1;
}

/* Terms and Privacy */
.form-terms {
    text-align: center;
    margin-top: var(--space-2);
    flex-shrink: 0;
}

.form-terms p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--space-2);
}

.form-terms p:last-child {
    margin-bottom: 0;
}

.form-terms a {
    color: var(--brand-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.form-terms a:hover {
    text-decoration: underline;
}

.auth0-secure {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

/* Back to front button */
.back-to-front {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.back-to-front:hover {
    color: var(--text-primary);
    transform: translateX(-2px);
}

/* Clean Front Card Content */
.cta-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    gap: var(--space-6);
}

.cta-content h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.cta-content p {
    color: var(--text-secondary);
    font-size: var(--text-base);
    margin-bottom: 0;
}

/* Simple Trust Indicator */
.simple-trust {
    margin-top: var(--space-4);
}

.trust-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-size: 14px;
}

.trust-line i {
    color: var(--success);
    font-size: var(--text-base);
}

.final-cta-button {
    background: var(--brand-primary);
    color: var(--text-white);
    border: none;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-xl);
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-4);
    font-family: var(--font-family);
    box-shadow: var(--shadow-brand);
}

.final-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-brand-lg);
}

.final-cta-button:disabled {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading Animation */
.loading {
    text-align: center;
    color: var(--brand-primary);
    margin-bottom: var(--space-8);
}

.loading.active {
    display: block;
}

.loading i {
    font-size: 3rem;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-4);
}

.loading p {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .cta-card {
        width: 70%;
        max-width: 400px;
        min-width: 300px;
    }

    .cta-card.flipped {
        width: 80%;
        max-width: 450px;
    }
}

@media (max-width: 480px) {
    .final-cta-button {
        font-size: var(--text-base);
        padding: var(--space-3) var(--space-6);
    }
    
    .cta-card {
        width: 90%;
        min-width: 280px;
        height: 280px;
    }

    .cta-card.flipped {
        width: 95%;
        min-width: 340px;
        height: min(550px, 85vh);
    }

    .cta-card .card-side {
        padding: var(--space-4);
    }

    .cta-card .card-back {
        padding: var(--space-4);
    }

    .signup-form {
        max-width: 100%;
        gap: var(--space-1);
    }

    .form-header {
        margin-bottom: var(--space-1);
    }

    .form-header h3 {
        font-size: 1.2rem;
    }

    .form-header p {
        font-size: 0.85rem;
    }

    .form-group {
        margin-bottom: var(--space-1);
    }

    .form-group label {
        font-size: 0.8rem;
        margin-bottom: var(--space-1);
    }

    .form-input {
        padding: var(--space-3);
        font-size: 14px;
    }

    .password-requirements {
        margin-top: var(--space-1);
        padding: var(--space-1) 0;
    }

    .password-requirements small {
        font-size: 11px;
    }

    .input-label {
        font-size: 10px;
        margin-top: 2px;
    }

    .cta-submit-btn {
        padding: var(--space-3) var(--space-4);
        font-size: 14px;
    }

    .cta-submit-btn .btn-text {
        font-size: 14px;
    }

    .form-terms {
        margin-top: var(--space-1);
    }

    .form-terms p {
        font-size: 10px;
        line-height: 1.4;
    }

    .auth0-secure {
        font-size: 9px;
    }

    .back-to-front {
        top: var(--space-2);
        left: var(--space-2);
        font-size: 14px;
    }

    .cta-content h3 {
        font-size: 20px;
    }

    .cta-content p {
        font-size: 14px;
    }

    .trust-line {
        font-size: 12px;
    }
}