/* ========================================
   BREVO CF REGISTRATION - v4.0
   Modern Design with Navy/Red Theme
   Inspired by Scuola Popolare di Medicina
   ======================================== */

/* ========================================
   CSS VARIABLES - Navy/Red Palette
   ======================================== */
:root {
    /* Primary Navy (Main Brand) */
    --bcf-primary-50: #f0f4f8;
    --bcf-primary-100: #d9e2ec;
    --bcf-primary-200: #bcccdc;
    --bcf-primary-300: #9fb3c8;
    --bcf-primary-400: #829ab1;
    --bcf-primary-500: #627d98;
    --bcf-primary-600: #486581;
    --bcf-primary-700: #334e68;
    --bcf-primary-800: #243b53;
    --bcf-primary-900: #2D3A5C;
    
    /* Accent Red */
    --bcf-accent-50: #fef2f2;
    --bcf-accent-100: #fee2e2;
    --bcf-accent-500: #C62828;
    --bcf-accent-600: #B71C1C;
    --bcf-accent-700: #991B1B;
    
    /* Neutral Colors */
    --bcf-gray-50: #f8fafc;
    --bcf-gray-100: #f1f5f9;
    --bcf-gray-200: #e2e8f0;
    --bcf-gray-300: #cbd5e1;
    --bcf-gray-400: #94a3b8;
    --bcf-gray-500: #64748b;
    --bcf-gray-600: #475569;
    --bcf-gray-700: #334155;
    --bcf-gray-800: #1e293b;
    --bcf-gray-900: #0f172a;
    
    /* Status Colors */
    --bcf-success-50: #f0fdf4;
    --bcf-success-100: #dcfce7;
    --bcf-success-500: #22c55e;
    --bcf-success-600: #16a34a;
    --bcf-success-700: #15803d;
    
    --bcf-error-50: #fef2f2;
    --bcf-error-100: #fee2e2;
    --bcf-error-500: #ef4444;
    --bcf-error-600: #dc2626;
    
    --bcf-warning-50: #fffbeb;
    --bcf-warning-100: #fef3c7;
    --bcf-warning-500: #f59e0b;
    --bcf-warning-600: #d97706;
    
    /* Design Tokens */
    --bcf-radius-sm: 8px;
    --bcf-radius-md: 12px;
    --bcf-radius-lg: 16px;
    --bcf-radius-xl: 24px;
    --bcf-radius-full: 9999px;
    
    --bcf-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --bcf-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --bcf-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --bcf-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --bcf-shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    --bcf-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --bcf-transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --bcf-transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes bcf-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes bcf-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

@keyframes bcf-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes bcf-shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes bcf-scaleIn {
    from { 
        opacity: 0; 
        transform: scale(0.95); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

/* ========================================
   BASE WRAPPER
   ======================================== */
.bcf-wrapper {
    max-width: 640px !important;
    margin: 50px auto !important;
    padding: 0 20px !important;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important;
    color: var(--bcf-gray-900) !important;
    line-height: 1.6 !important;
    -webkit-font-smoothing: antialiased !important;
    -moz-osx-font-smoothing: grayscale !important;
}

/* ========================================
   PROGRESS CARD
   ======================================== */
.bcf-progress-box {
    background: white !important;
    border-radius: 16px !important;
    padding: 24px 28px !important;
    margin-bottom: 24px !important;
    box-shadow: 0 4px 20px rgba(45, 58, 92, 0.1) !important;
    border: 1px solid rgba(45, 58, 92, 0.08) !important;
    position: relative !important;
    overflow: hidden !important;
}

.bcf-progress-box::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    height: 4px !important;
    background: linear-gradient(90deg, #2D3A5C, #C62828) !important;
}

.bcf-progress-header {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 16px !important;
}

.bcf-progress-info {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: #64748b !important;
}

.bcf-progress-info span {
    color: #2D3A5C !important;
    font-size: 24px !important;
    font-weight: 700 !important;
}

.bcf-step-dots {
    display: none !important;
}

.bcf-nav-btn {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    padding: 10px 18px !important;
    background: #f0f4f8 !important;
    color: #2D3A5C !important;
    border: 1px solid #d9e2ec !important;
    border-radius: 10px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s !important;
}

.bcf-nav-btn:hover {
    background: #d9e2ec !important;
    border-color: #bcccdc !important;
    transform: translateY(-1px) !important;
}

.bcf-nav-btn:active {
    transform: translateY(0) !important;
}

.bcf-progress-track {
    height: 10px !important;
    background: #e2e8f0 !important;
    border-radius: 9999px !important;
    overflow: hidden !important;
}

.bcf-progress-fill {
    height: 100% !important;
    background: linear-gradient(90deg, #2D3A5C, #C62828) !important;
    border-radius: 9999px !important;
    transition: width 0.5s ease-out !important;
    position: relative !important;
}

.bcf-progress-fill::after {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent) !important;
    animation: bcf-shimmer 2s infinite !important;
}

/* ========================================
   FORM CONTAINER
   ======================================== */
.bcf-form {
    background: white !important;
    border-radius: 20px !important;
    box-shadow: 0 20px 60px rgba(45, 58, 92, 0.12) !important;
    overflow: hidden !important;
    border: 1px solid rgba(45, 58, 92, 0.08) !important;
}

/* ========================================
   MESSAGES & ALERTS
   ======================================== */
.bcf-messages {
    padding: 0 28px !important;
    margin-top: 20px !important;
}

.bcf-alert {
    padding: 16px 20px !important;
    border-radius: 12px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    display: flex !important;
    align-items: flex-start !important;
    gap: 12px !important;
    margin-bottom: 16px !important;
    animation: bcf-slideDown var(--bcf-transition-normal) !important;
}

.bcf-alert::before {
    font-size: 20px !important;
    flex-shrink: 0 !important;
    line-height: 1 !important;
}

.bcf-alert-error {
    background: #fef2f2 !important;
    color: #dc2626 !important;
    border: 1px solid #fecaca !important;
}

.bcf-alert-error::before {
    content: '✕' !important;
    color: #ef4444 !important;
}

.bcf-alert-success {
    background: #f0fdf4 !important;
    color: #15803d !important;
    border: 1px solid #dcfce7 !important;
}

.bcf-alert-success::before {
    content: '✓' !important;
    color: #22c55e !important;
}

.bcf-alert-warning {
    background: #fffbeb !important;
    color: #d97706 !important;
    border: 1px solid #fef3c7 !important;
}

.bcf-alert-warning::before {
    content: '⚠' !important;
    color: #f59e0b !important;
}

.bcf-alert-info {
    background: #f0f4f8 !important;
    color: #2D3A5C !important;
    border: 1px solid #d9e2ec !important;
}

.bcf-alert-info::before {
    content: 'ℹ' !important;
    color: #2D3A5C !important;
}

/* ========================================
   STEP CONTAINER
   ======================================== */
.bcf-step {
    display: none !important;
    padding: 36px !important;
    animation: bcf-slideUp var(--bcf-transition-slow) !important;
}

.bcf-step-active {
    display: block !important;
}

.bcf-step-header {
    text-align: center !important;
    margin-bottom: 36px !important;
    padding-bottom: 24px !important;
    border-bottom: 1px solid #e2e8f0 !important;
}

.bcf-step-icon {
    width: 72px !important;
    height: 72px !important;
    background: linear-gradient(135deg, #2D3A5C, #3D4F7C) !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin: 0 auto 20px !important;
    font-size: 28px !important;
    color: white !important;
    box-shadow: 0 10px 24px -6px rgba(45, 58, 92, 0.4) !important;
    font-family: 'Font Awesome 6 Free', 'Font Awesome 5 Free', FontAwesome !important;
    font-weight: 900 !important;
}

.bcf-step-icon::before {
    content: '\f02d'; /* fa-book */
}

.bcf-step[data-step="2"] .bcf-step-icon::before { content: '\f007'; } /* fa-user */
.bcf-step[data-step="3"] .bcf-step-icon::before { content: '\f0e0'; } /* fa-envelope */
.bcf-step[data-step="4"] .bcf-step-icon::before { content: '\f00c'; } /* fa-check */
.bcf-step[data-step="5"] .bcf-step-icon::before,
.bcf-step[data-step="6"] .bcf-step-icon::before,
.bcf-step[data-step="7"] .bcf-step-icon::before,
.bcf-step[data-step="8"] .bcf-step-icon::before { content: '\f0ca'; } /* fa-list-ul */

.bcf-step-title {
    font-size: 26px !important;
    font-weight: 700 !important;
    color: #2D3A5C !important;
    margin: 0 0 10px 0 !important;
    letter-spacing: -0.5px !important;
}

.bcf-step-desc {
    font-size: 15px !important;
    color: #64748b !important;
    margin: 0 !important;
}

.bcf-step-content {
    animation: bcf-fadeIn var(--bcf-transition-slow) !important;
}

/* ========================================
   FORM GROUPS
   ======================================== */
.bcf-group {
    margin-bottom: 26px !important;
}

.bcf-label {
    display: block !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    color: #2D3A5C !important;
    margin-bottom: 10px !important;
    letter-spacing: -0.01em !important;
}

.bcf-input {
    width: 100% !important;
    padding: 16px 18px !important;
    font-size: 16px !important;
    color: #2D3A5C !important;
    background: #f8fafc !important;
    border: 2px solid #e2e8f0 !important;
    border-radius: 12px !important;
    transition: all 0.2s !important;
    box-sizing: border-box !important;
    font-family: inherit !important;
}

.bcf-input::placeholder {
    color: #94a3b8 !important;
}

.bcf-input:hover {
    border-color: #cbd5e1 !important;
    background: white !important;
}

.bcf-input:focus {
    outline: none !important;
    border-color: #2D3A5C !important;
    background: white !important;
    box-shadow: 0 0 0 4px rgba(45, 58, 92, 0.1) !important;
}

.bcf-input.bcf-valid {
    border-color: #22c55e !important;
    background: #f0fdf4 !important;
}

.bcf-input.bcf-valid:focus {
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15) !important;
}

.bcf-input.bcf-error {
    border-color: #ef4444 !important;
    background: #fef2f2 !important;
}

.bcf-input.bcf-error:focus {
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15) !important;
}

.bcf-feedback {
    margin-top: 8px !important;
    font-size: 13px !important;
    color: #64748b !important;
}

.bcf-feedback.bcf-error-text {
    color: #dc2626 !important;
}

.bcf-feedback.bcf-success-text {
    color: #16a34a !important;
}

/* ========================================
   PASSWORD FIELD
   ======================================== */
.bcf-password-wrapper {
    position: relative !important;
}

.bcf-password-wrapper .bcf-input {
    padding-right: 56px !important;
}

.bcf-password-toggle {
    position: absolute !important;
    right: 4px !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 44px !important;
    height: 44px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
    border: none !important;
    border-radius: 8px !important;
    cursor: pointer !important;
    color: #94a3b8 !important;
    transition: all 0.2s !important;
}

.bcf-password-toggle:hover {
    color: #64748b !important;
    background: #f1f5f9 !important;
}

.bcf-eye-icon::before {
    content: '👁' !important;
    font-size: 18px !important;
}

.bcf-password-strength {
    margin-top: 12px !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

.bcf-strength-bar {
    flex: 1 !important;
    height: 8px !important;
    background: #e2e8f0 !important;
    border-radius: 9999px !important;
    overflow: hidden !important;
    position: relative !important;
}

.bcf-strength-bar::after {
    content: '' !important;
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    height: 100% !important;
    width: var(--strength, 0%) !important;
    background: var(--strength-color, #94a3b8) !important;
    border-radius: 9999px !important;
    transition: all 0.3s !important;
}

.bcf-strength-text {
    font-size: 13px !important;
    font-weight: 500 !important;
    color: #64748b !important;
}

/* ========================================
   DECODED DATA BOX
   ======================================== */
.bcf-decoded {
    background: linear-gradient(135deg, var(--bcf-success-50), var(--bcf-primary-50));
    border: 1px solid var(--bcf-success-200);
    border-radius: var(--bcf-radius-lg);
    padding: 24px;
    margin: 24px 0;
    animation: bcf-scaleIn var(--bcf-transition-normal);
}

.bcf-decoded-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.bcf-decoded-icon {
    width: 40px;
    height: 40px;
    background: var(--bcf-success-500);
    border-radius: var(--bcf-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.bcf-decoded-icon::before {
    content: '✓';
}

.bcf-decoded-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--bcf-success-700);
    margin: 0;
}

.bcf-decoded-note {
    font-size: 13px;
    color: var(--bcf-gray-600);
    background: white;
    padding: 12px 16px;
    border-radius: var(--bcf-radius-sm);
    margin-bottom: 20px;
    border-left: 3px solid var(--bcf-primary-400);
}

.bcf-decoded-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.bcf-decoded-item {
    background: white;
    padding: 14px 16px;
    border-radius: var(--bcf-radius-md);
    box-shadow: var(--bcf-shadow-sm);
}

.bcf-decoded-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--bcf-gray-500);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bcf-decoded-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--bcf-gray-900);
}

/* ========================================
   RADIO & CHECKBOX GROUPS
   ======================================== */
.bcf-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.bcf-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: var(--bcf-gray-50);
    border: 2px solid var(--bcf-gray-200);
    border-radius: var(--bcf-radius-md);
    cursor: pointer;
    transition: all var(--bcf-transition-fast);
    flex: 1;
    min-width: 100px;
    position: relative;
}

.bcf-radio:hover {
    border-color: var(--bcf-primary-300);
    background: var(--bcf-primary-50);
}

.bcf-radio input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.bcf-radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--bcf-gray-300);
    border-radius: var(--bcf-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--bcf-transition-fast);
    flex-shrink: 0;
}

.bcf-radio-custom::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: var(--bcf-radius-full);
    background: var(--bcf-primary-600);
    transform: scale(0);
    transition: transform var(--bcf-transition-fast);
}

.bcf-radio input:checked + .bcf-radio-custom {
    border-color: var(--bcf-primary-600);
}

.bcf-radio input:checked + .bcf-radio-custom::after {
    transform: scale(1);
}

.bcf-radio:has(input:checked) {
    border-color: var(--bcf-primary-500);
    background: var(--bcf-primary-50);
}

.bcf-radio-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--bcf-gray-700);
}

/* Checkbox Wrapper */
.bcf-checkbox-wrapper {
    margin-bottom: 16px;
}

.bcf-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    background: var(--bcf-gray-50);
    border: 2px solid var(--bcf-gray-200);
    border-radius: var(--bcf-radius-md);
    cursor: pointer;
    transition: all var(--bcf-transition-fast);
    position: relative;
}

.bcf-checkbox:hover {
    border-color: var(--bcf-primary-300);
}

.bcf-checkbox input {
    position: absolute;
    opacity: 0;
}

.bcf-checkbox-custom {
    width: 24px;
    height: 24px;
    border: 2px solid var(--bcf-gray-300);
    border-radius: var(--bcf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--bcf-transition-fast);
    flex-shrink: 0;
    margin-top: 2px;
}

.bcf-checkbox-custom::after {
    content: '✓';
    color: white;
    font-size: 14px;
    font-weight: 700;
    transform: scale(0);
    transition: transform var(--bcf-transition-fast);
}

.bcf-checkbox input:checked + .bcf-checkbox-custom {
    background: var(--bcf-primary-600);
    border-color: var(--bcf-primary-600);
}

.bcf-checkbox input:checked + .bcf-checkbox-custom::after {
    transform: scale(1);
}

.bcf-checkbox:has(input:checked) {
    border-color: var(--bcf-primary-500);
    background: var(--bcf-primary-50);
}

.bcf-checkbox-text {
    font-size: 14px;
    color: var(--bcf-gray-700);
    line-height: 1.6;
}

.bcf-checkbox-text strong {
    color: var(--bcf-gray-900);
}

/* ========================================
   SEPARATOR
   ======================================== */
.bcf-separator {
    margin: 32px 0 24px;
    padding: 20px;
    background: linear-gradient(135deg, var(--bcf-primary-50), var(--bcf-gray-50));
    border-radius: var(--bcf-radius-md);
    border-left: 4px solid var(--bcf-primary-500);
}

.bcf-separator-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--bcf-primary-700);
    margin: 0;
}

/* ========================================
   GDPR BOX
   ======================================== */
.bcf-gdpr-box {
    background: var(--bcf-gray-50);
    border: 1px solid var(--bcf-gray-200);
    border-radius: var(--bcf-radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.bcf-gdpr-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--bcf-gray-800);
    margin: 0 0 16px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bcf-gdpr-text {
    font-size: 14px;
    color: var(--bcf-gray-600);
    line-height: 1.7;
    max-height: 180px;
    overflow-y: auto;
    padding-right: 8px;
}

.bcf-gdpr-text p {
    margin: 0 0 12px 0;
}

.bcf-gdpr-text p:last-child {
    margin-bottom: 0;
}

/* ========================================
   NAVIGATION BUTTONS
   ======================================== */
.bcf-nav {
    display: flex !important;
    gap: 16px !important;
    padding: 24px 36px 36px !important;
    background: #f8fafc !important;
    border-top: 1px solid #e2e8f0 !important;
}

.bcf-btn {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 10px !important;
    padding: 16px 28px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    border-radius: 12px !important;
    cursor: pointer !important;
    transition: all 0.2s !important;
    border: 2px solid transparent !important;
    font-family: inherit !important;
    text-decoration: none !important;
}

.bcf-btn-primary {
    background: linear-gradient(135deg, #2D3A5C, #3D4F7C) !important;
    color: white !important;
    flex: 1 !important;
    box-shadow: 0 6px 16px -4px rgba(45, 58, 92, 0.4) !important;
}

.bcf-btn-primary:hover {
    background: linear-gradient(135deg, #243147, #334466) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 24px -4px rgba(45, 58, 92, 0.5) !important;
}

.bcf-btn-primary:active {
    transform: translateY(0) !important;
}

.bcf-btn-primary:disabled {
    background: #cbd5e1 !important;
    color: #64748b !important;
    cursor: not-allowed !important;
    box-shadow: none !important;
    transform: none !important;
}

.bcf-btn-secondary {
    background: white !important;
    color: #2D3A5C !important;
    border-color: #cbd5e1 !important;
}

.bcf-btn-secondary:hover {
    background: #f1f5f9 !important;
    border-color: #94a3b8 !important;
}

.bcf-btn-success {
    background: linear-gradient(135deg, #C62828, #B71C1C) !important;
    color: white !important;
    flex: 1 !important;
    box-shadow: 0 6px 16px -4px rgba(198, 40, 40, 0.4) !important;
}

.bcf-btn-success:hover {
    background: linear-gradient(135deg, #B71C1C, #991B1B) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 24px -4px rgba(198, 40, 40, 0.5) !important;
}

.bcf-btn-loading {
    position: relative !important;
    pointer-events: none;
}

.bcf-btn-loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: bcf-spin 0.8s linear infinite;
}

/* ========================================
   MODAL
   ======================================== */
.bcf-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    padding: 20px;
    overflow-y: auto;
}

.bcf-modal.bcf-modal-active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.bcf-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    animation: bcf-fadeIn var(--bcf-transition-fast);
}

.bcf-modal-box {
    position: relative;
    background: white;
    border-radius: var(--bcf-radius-xl);
    box-shadow: var(--bcf-shadow-2xl);
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow: hidden;
    animation: bcf-scaleIn var(--bcf-transition-normal);
}

.bcf-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--bcf-primary-600), var(--bcf-primary-700));
    color: white;
}

.bcf-modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
}

.bcf-modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--bcf-radius-sm);
    color: white;
    cursor: pointer;
    font-size: 20px;
    transition: background var(--bcf-transition-fast);
}

.bcf-modal-close::before {
    content: '✕';
}

.bcf-modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.bcf-modal-body {
    padding: 24px;
    max-height: 400px;
    overflow-y: auto;
}

.bcf-modal-footer {
    padding: 16px 24px;
    background: var(--bcf-gray-50);
    border-top: 1px solid var(--bcf-gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Navigation List in Modal */
.bcf-nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bcf-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bcf-gray-50);
    border: 2px solid var(--bcf-gray-200);
    border-radius: var(--bcf-radius-md);
    cursor: pointer;
    transition: all var(--bcf-transition-fast);
}

.bcf-nav-item:hover {
    border-color: var(--bcf-primary-300);
    background: var(--bcf-primary-50);
}

.bcf-nav-item.bcf-nav-current {
    border-color: var(--bcf-primary-500);
    background: var(--bcf-primary-50);
}

.bcf-nav-item.bcf-nav-completed {
    border-color: var(--bcf-success-300);
    background: var(--bcf-success-50);
}

.bcf-nav-item-num {
    width: 32px;
    height: 32px;
    border-radius: var(--bcf-radius-full);
    background: var(--bcf-gray-200);
    color: var(--bcf-gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.bcf-nav-current .bcf-nav-item-num {
    background: var(--bcf-primary-600);
    color: white;
}

.bcf-nav-completed .bcf-nav-item-num {
    background: var(--bcf-success-500);
    color: white;
}

.bcf-nav-completed .bcf-nav-item-num::before {
    content: '✓';
}

.bcf-nav-item-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--bcf-gray-700);
}

/* ========================================
   CONDITIONAL FIELDS
   ======================================== */
.bcf-conditional {
    animation: bcf-slideDown var(--bcf-transition-normal);
    padding-left: 24px;
    border-left: 3px solid var(--bcf-primary-200);
    margin-left: 12px;
}

/* ========================================
   SUCCESS STATE
   ======================================== */
.bcf-success-box {
    text-align: center;
    padding: 48px 32px;
}

.bcf-success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--bcf-success-500), var(--bcf-success-600));
    border-radius: var(--bcf-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 40px;
    color: white;
    box-shadow: 0 12px 24px -8px rgba(34, 197, 94, 0.5);
    animation: bcf-bounce 1s ease-in-out infinite;
}

.bcf-success-icon::before {
    content: '✓';
}

.bcf-success-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--bcf-gray-900);
    margin: 0 0 12px 0;
}

.bcf-success-message {
    font-size: 16px;
    color: var(--bcf-gray-600);
    margin: 0;
}

/* ========================================
   LOADING STATE
   ======================================== */
.bcf-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 99998;
}

.bcf-loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bcf-gray-200);
    border-top-color: var(--bcf-primary-600);
    border-radius: 50%;
    animation: bcf-spin 1s linear infinite;
    margin-bottom: 16px;
}

.bcf-loading-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--bcf-gray-600);
}

/* ========================================
   MESSAGE BOX (Already logged in, etc.)
   ======================================== */
.bcf-message {
    max-width: 500px;
    margin: 40px auto;
    padding: 32px;
    background: white;
    border-radius: var(--bcf-radius-xl);
    box-shadow: var(--bcf-shadow-lg);
    text-align: center;
    font-size: 16px;
    color: var(--bcf-gray-700);
}

.bcf-message a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px 24px;
    background: var(--bcf-primary-600);
    color: white;
    text-decoration: none;
    border-radius: var(--bcf-radius-md);
    font-weight: 600;
    transition: background var(--bcf-transition-fast);
}

.bcf-message a:hover {
    background: var(--bcf-primary-700);
}

.bcf-info {
    border-left: 4px solid var(--bcf-primary-500);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 640px) {
    .bcf-wrapper {
        margin: 16px auto;
        padding: 0 16px;
    }
    
    .bcf-progress-box {
        padding: 16px 20px;
    }
    
    .bcf-progress-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .bcf-nav-btn {
        width: 100%;
        justify-content: center;
    }
    
    .bcf-step {
        padding: 24px 20px;
    }
    
    .bcf-step-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .bcf-step-title {
        font-size: 20px;
    }
    
    .bcf-radio-group {
        flex-direction: column;
    }
    
    .bcf-radio {
        min-width: 100%;
    }
    
    .bcf-decoded-grid {
        grid-template-columns: 1fr;
    }
    
    .bcf-nav {
        flex-direction: column-reverse;
        padding: 20px;
    }
    
    .bcf-btn {
        width: 100%;
    }
    
    .bcf-modal-box {
        max-width: 100%;
        margin: 0 16px;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .bcf-wrapper {
        max-width: 100%;
        margin: 0;
        padding: 0;
    }
    
    .bcf-progress-box,
    .bcf-nav,
    .bcf-modal {
        display: none !important;
    }
    
    .bcf-form {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .bcf-step {
        display: block !important;
        page-break-inside: avoid;
    }
}
/* Nascondi pulsanti inizialmente - JS li mostrera' quando necessario */
.bcf-btn-prev.bcf-hidden,
.bcf-btn-next.bcf-hidden,
#bcf-submit-btn.bcf-hidden {
    display: none !important;
}