/* ========================================
   PROFESSIONAL REGISTRATION PAGE STYLES
======================================== */

/* Container & Layout */
.registration-container {
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.registration-brand-side {
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-16);
    display: flex;
    align-items: center;
    justify-content: center;
}

.registration-brand-side::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: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

/* Brand Logo */
.brand-illustration {
    position: relative;
    height: 200px;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;

}

.brand-logo-img {
    max-width: 200px;
    max-height: 180px;
    width: auto;
    height: auto;
    transition: var(--transition-transform);
}

.brand-logo-img:hover {
    transform: scale(1.05);
}

/* Brand Content */
.brand-content {
    position: relative;
    z-index: 1;
    max-width: 480px;
    color: #ffffff;
}

.brand-tagline {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-6);
    color: #ffffff;
}

.brand-description {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
}

.brand-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.95);
}

.feature-icon {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
}

/* Form Side */
.registration-form-side {
    background: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-10) var(--space-6);
    overflow-y: auto;
}

.form-container {
    width: 100%;
    max-width: 480px;
    padding: var(--space-6);
}

/* Logo Section */
.form-logo-section {
    margin-bottom: var(--space-8);
}

.logo-img-form {
    max-width: 180px;
    height: auto;
    display: block;
    margin: 0 auto;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.1));
    transition: var(--transition-transform);
}

.logo-img-form:hover {
    transform: scale(1.05);
}

.logo-placeholder {
    padding: var(--space-6) 0;
}

.brand-name-form {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-600);
    margin: 0;
}

/* Form Header */
.form-header {
    margin-bottom: var(--space-8);
}

.form-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.form-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

/* Progress Indicator */
.registration-progress {
    padding: 0 var(--space-4);
}

.progress-track {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    position: relative;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    position: relative;
    z-index: 2;
}

.step-circle {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    border: 3px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-all);
    box-shadow: var(--shadow-sm);
}

.progress-step.active .step-circle {
    background: var(--color-primary-600);
    border-color: var(--color-primary-600);
    box-shadow: 0 0 0 4px rgba(var(--color-primary-500), 0.2);
}

.step-icon {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-tertiary);
}

.progress-step.active .step-icon {
    color: #ffffff;
}

.step-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-tertiary);
    white-space: nowrap;
}

.progress-step.active .step-label {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
}

.progress-line {
    flex: 1;
    height: 3px;
    background: var(--color-border);
    margin: 0 var(--space-2);
    align-self: center;
    margin-top: -20px;
    position: relative;
    z-index: 1;
    transition: var(--transition-all);
}

.progress-line.active {
    background: var(--color-primary-600);
}

/* Form Inputs */
.form-group {
    margin-bottom: var(--space-4);
}

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

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

.input-icon {
    position: absolute;
    left: var(--space-4);
    color: var(--color-text-tertiary);
    pointer-events: none;
    z-index: 2;
    font-size: var(--font-size-base);
}

.form-input {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-12);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text-primary);
    transition: var(--transition-all);
    height: 52px;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 4px rgba(var(--color-primary-500), 0.1);
    background: var(--color-surface);
}

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

.password-toggle {
    position: absolute;
    right: var(--space-4);
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    cursor: pointer;
    padding: var(--space-2);
    transition: var(--transition-colors);
}

.password-toggle:hover {
    color: var(--color-primary-600);
}

/* Password Strength Meter */
.password-strength {
    margin-top: var(--space-2);
}

.strength-meter {
    height: 4px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.strength-bar {
    height: 100%;
    width: 0%;
    background: var(--color-success-500);
    transition: var(--transition-all);
}

.strength-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

/* Verification Code Inputs */
.code-inputs {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin: var(--space-6) 0;
}

.code-input {
    width: 54px;
    height: 54px;
    text-align: center;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text-primary);
    transition: var(--transition-all);
}

.code-input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 4px rgba(var(--color-primary-500), 0.1);
}

/* Verification Box */
.verification-box {
    text-align: center;
    padding: var(--space-6);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
}

.verification-icon {
    font-size: 64px;
    color: var(--color-primary-600);
    margin-bottom: var(--space-4);
}

.verification-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.verification-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Success Box */
.success-box {
    padding: var(--space-8) var(--space-6);
}

.success-icon {
    font-size: 80px;
    color: var(--color-success-500);
    animation: scaleIn 0.5s ease-out;
}

@keyframes scaleIn {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.success-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.success-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Buttons */
.btn-register {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    border: none;
    background: var(--color-primary-600);
    color: #ffffff;
    transition: var(--transition-all);
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-md);
}

.btn-register:hover {
    background: var(--color-primary-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: var(--transition-all);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}



.btn-outline-secondary {
    background: transparent;
    color: var(--color-text-secondary);
    border-color: var(--color-border);
}

/* Form Steps */
.form-step {
    display: none;
}

.form-step[style*="block"] {
    display: block !important;
}

/* Form Footer */
.form-footer {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.footer-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.link-primary {
    color: var(--color-primary-600);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: var(--transition-colors);
}

.link-primary:hover {
    color: var(--color-primary-700);
    text-decoration: underline;
}

/* Checkbox Styling */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.form-check-input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--color-primary-600);
    border-color: var(--color-primary-600);
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Enhanced Validation Feedback */
.username-feedback, .email-feedback, .field-message, .field-hint {
    font-size: var(--font-size-sm);
    transition: var(--transition-all);
}

.username-feedback.available, .email-feedback.available { 
    color: var(--color-success-500); 
}

.username-feedback.taken, .email-feedback.taken { 
    color: var(--color-danger-500); 
}

.username-feedback.checking, .email-feedback.checking { 
    color: var(--color-gray-500); 
}

.username-feedback.error, .email-feedback.error { 
    color: var(--color-warning-500); 
}

/* Field Messages */
.field-message {
    margin-top: var(--space-1);
    opacity: 0;
    animation: fadeInMessage 0.2s ease-out forwards;
}

.field-hint {
    margin-top: var(--space-1);
    opacity: 0;
    animation: fadeInHint 0.2s ease-out forwards;
}

@keyframes fadeInMessage {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInHint {
    from { opacity: 0; transform: translateY(-3px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Spinning Animation for Loading States */
.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Enhanced Password Criteria */
.password-criteria {
    margin-top: var(--space-2);
    padding: var(--space-3);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition-all);
}

.password-criteria-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.criteria-item {
    display: flex;
    align-items: center;
    transition: var(--transition-all);
}

.criteria-item i {
    font-size: var(--font-size-sm);
    margin-right: var(--space-2);
    transition: var(--transition-colors);
}

.criteria-item small {
    transition: var(--transition-colors);
}

/* Username Suggestions */
.username-suggestions {
    margin-top: var(--space-2);
    padding: var(--space-2);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    animation: fadeInMessage 0.3s ease-out;
}

.username-suggestion {
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-2);
    margin: 0 var(--space-1) var(--space-1) 0;
    border: 1px solid var(--color-primary-300);
    background: transparent;
    color: var(--color-primary-600);
    border-radius: var(--radius-sm);
    transition: var(--transition-all);
    cursor: pointer;
}

.username-suggestion:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary-500);
    transform: translateY(-1px);
}

/* Enhanced Form Input States */
.form-input.is-valid {
    border-color: var(--color-success-500);
    box-shadow: 0 0 0 3px rgba(var(--color-success-500), 0.1);
}

.form-input.is-invalid {
    border-color: var(--color-danger-500);
    box-shadow: 0 0 0 3px rgba(var(--color-danger-500), 0.1);
}

.form-input:focus.is-valid {
    border-color: var(--color-success-500);
    box-shadow: 0 0 0 4px rgba(var(--color-success-500), 0.15);
}

.form-input:focus.is-invalid {
    border-color: var(--color-danger-500);
    box-shadow: 0 0 0 4px rgba(var(--color-danger-500), 0.15);
}

/* Enhanced Progress Indicators */
.progress-step.validating .step-circle {
    background: var(--color-warning-100);
    border-color: var(--color-warning-500);
    animation: pulse 1.5s ease-in-out infinite;
}

.progress-step.valid .step-circle {
    background: var(--color-success-500);
    border-color: var(--color-success-500);
    box-shadow: 0 0 0 4px rgba(var(--color-success-500), 0.2);
}

.progress-step.invalid .step-circle {
    background: var(--color-danger-100);
    border-color: var(--color-danger-500);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

/* Data Save Indicator */
#data-save-indicator {
    transition: opacity 0.3s ease;
    pointer-events: none;
}

#data-save-indicator .badge {
    background: rgba(var(--color-success-500), 0.9) !important;
    color: white;
    font-size: var(--font-size-xs);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

/* Payment Step Styles */
.payment-step-content {
    max-width: 500px;
    margin: 0 auto;
}

.payment-header {
    padding: var(--space-6) 0;
}

.payment-icon {
    color: var(--color-primary-600);
}

.payment-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.payment-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

.payment-gateway-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.gateway-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gateway-logo {
    font-size: var(--font-size-2xl);
    color: var(--color-primary-600);
}

.gateway-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
}

.gateway-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.direct-payment-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.payment-gateway-info {
    text-align: center;
}

.payment-gateway-info h6 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: var(--space-2) 0 var(--space-1) 0;
}

.stripe-card-container {
    margin: var(--space-4) 0;
}

.stripe-card-container .form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

#stripe-card-element {
    padding: var(--space-3);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-background);
    transition: var(--transition-all);
}

#stripe-card-element:focus-within {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-500), 0.1);
}

.payment-security-info {
    text-align: center;
    padding: var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.security-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
}

/* Payment Progress */
.payment-progress-bar {
    background: var(--color-primary-600);
    transition: width 0.3s ease;
}

/* Payment Error Styles */
#payment-error {
    margin-top: var(--space-4);
}

#payment-error-message {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

#payment-error-message::before {
    content: '\f071';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--color-danger-500);
}

/* Gateway Unavailable */
#gateway-unavailable {
    text-align: center;
    padding: var(--space-6);
}

#gateway-unavailable i {
    font-size: var(--font-size-3xl);
    color: var(--color-warning-500);
    margin-bottom: var(--space-3);
}

/* Payment Transition Styles */
.payment-transition-box {
    padding: var(--space-8) var(--space-6);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.transition-icon {
    color: var(--color-primary-600);
    animation: scaleIn 0.5s ease-out;
}

.transition-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.transition-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.payment-info {
    background: var(--color-primary-50);
    border: 1px solid var(--color-primary-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.payment-amount {
    font-size: var(--font-size-lg);
    color: var(--color-primary-700);
}

/* Responsive Payment Styles */
@media (max-width: 575px) {
    .payment-step-content {
        padding: 0 var(--space-2);
    }
    
    .direct-payment-container {
        padding: var(--space-4);
    }
    
    .payment-header {
        padding: var(--space-4) 0;
    }
    
    .payment-title {
        font-size: var(--font-size-xl);
    }
    
    .payment-transition-box {
        padding: var(--space-6) var(--space-4);
    }
    
    .transition-title {
        font-size: var(--font-size-xl);
    }
}

/* Responsive Design */
@media (max-width: 991px) {
    .registration-brand-side {
        display: none !important;
    }
    
    .registration-form-side {
        padding: var(--space-6) var(--space-4);
    }
    
    .form-container {
        max-width: 100%;
        padding: var(--space-4);
    }
    
    .form-title {
        font-size: var(--font-size-2xl);
    }
    
    .brand-tagline {
        font-size: var(--font-size-2xl);
    }
    
    .code-input {
        width: 48px;
        height: 48px;
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 575px) {
    .step-label {
        font-size: var(--font-size-xs);
    }
    
    .step-circle {
        width: 40px;
        height: 40px;
    }
    
    .code-inputs {
        gap: var(--space-2);
    }
    
    .code-input {
        width: 42px;
        height: 42px;
    }
}

/* Loading States */
.btn-register.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-register.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 0.8s linear infinite;
}

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

/* Focus Visible for Accessibility */
.form-input:focus-visible,
.code-input:focus-visible,
.btn-register:focus-visible {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}