/* ========================================
   VARIABLES CSS MODERNES - DESIGN SYSTEM
   ======================================== */
:root {
    /* === Couleurs Principales === */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #8b5cf6;
    --primary-ultra-light: #ede9fe;
    --secondary: #5c3aa7;
    --accent: #f59e0b;
    
    /* === Couleurs d'État === */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* === Couleurs Neutres === */
    --white: #ffffff;
    --neutral-50: #f9fafb;
    --neutral-100: #f3f4f6;
    --neutral-200: #e5e7eb;
    --neutral-300: #d1d5db;
    --neutral-400: #9ca3af;
    --neutral-500: #6b7280;
    --neutral-600: #4b5563;
    --neutral-700: #374151;
    --neutral-800: #1f2937;
    --neutral-900: #111827;
    
    /* === Couleurs de Fond === */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-overlay: rgba(0, 0, 0, 0.5);
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* === Gradients === */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    --gradient-success: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    --gradient-error: linear-gradient(135deg, var(--error) 0%, #dc2626 100%);
    --gradient-bg: linear-gradient(135deg, #E1DFDF 0%, #f8fafc 100%);
    --gradient-shimmer: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    
    /* === Espacement Système === */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */
    --spacing-3xl: 4rem;      /* 64px */
    --spacing-4xl: 5rem;      /* 80px */
    
    /* === Bordures et Rayons === */
    --border-width: 1px;
    --border-width-thick: 2px;
    --border-radius-sm: 0.375rem;   /* 6px */
    --border-radius: 0.5rem;        /* 8px */
    --border-radius-lg: 0.75rem;    /* 12px */
    --border-radius-xl: 1rem;       /* 16px */
    --border-radius-2xl: 1.5rem;    /* 24px */
    --border-radius-3xl: 2rem;      /* 32px */
    --border-radius-full: 9999px;
    
    /* === Ombres === */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* === Transitions === */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* === Typographie === */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-serif: 'Marcellus', Georgia, serif;
    --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    --font-size-5xl: 3rem;       /* 48px */
    
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* === Z-Index Scale === */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
    
    /* === Breakpoints === */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* ========================================
   RESET ET BASE MODERNISÉ
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    line-height: var(--line-height-normal);
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    background: var(--gradient-bg);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--neutral-700);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Focus management for accessibility */
:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* Smooth scrolling for reduced motion users */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary: #0066cc;
        --success: #008000;
        --error: #cc0000;
        --neutral-700: #000000;
    }
}

/* ========================================
   UTILITAIRES GLOBAUX
   ======================================== */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.hidden {
    display: none !important;
}

.invisible {
    visibility: hidden !important;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

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

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% { transform: translate3d(0, 0, 0); }
    40%, 43% { transform: translate3d(0, -10px, 0); }
    70% { transform: translate3d(0, -5px, 0); }
    90% { transform: translate3d(0, -2px, 0); }
}

.fade-in { animation: fadeIn 0.5s ease-out; }
.slide-in { animation: slideIn 0.3s ease-out; }
.pulse { animation: pulse 2s infinite; }

/* ========================================
   HEADER MODERNISÉ
   ======================================== */
.demande_head {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: var(--border-width) solid var(--neutral-200);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.logo_part {
    flex-shrink: 0;
}

.logoDemande {
    height: 40px;
    width: auto;
    transition: var(--transition);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logoDemande:hover {
    transform: scale(1.05);
}

.safe_form {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-success);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.safe_form:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.lock {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
}

.safeForm_text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========================================
   BOUTON DE RÉCUPÉRATION
   ======================================== */
.recovery-trigger {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%) translateX(calc(100% - 4px));
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition);
    z-index: var(--z-fixed);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.recovery-trigger:hover {
    transform: translateY(-50%) translateX(0);
    box-shadow: var(--shadow-xl);
}

.recovery-trigger:focus-visible {
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

.recovery-trigger-icon {
    font-size: var(--font-size-lg);
    animation: spin 2s linear infinite;
}

.recovery-trigger:hover .recovery-trigger-icon {
    animation-duration: 0.5s;
}

/* ========================================
   BARRE DE PROGRESSION MODERNISÉE
   ======================================== */
.section_progressBar {
    padding: 0 var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.progress-container {
    position: relative;
    width: 100%;
    height: 8px;
    background: var(--neutral-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    box-shadow: var(--shadow-inner);
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-shimmer);
    animation: shimmer 2s infinite;
}

.progress-bar.active {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.progress-indicator {
    position: absolute;
    top: -35px;
    right: 0;
    background: var(--primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    transform: translateX(50%);
    transition: var(--transition);
    opacity: 0;
    pointer-events: none;
}

.progress-indicator::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: var(--primary);
}

.progress-container:hover .progress-indicator {
    opacity: 1;
}

/* ========================================
   NAVIGATION PAR ÉTAPES
   ======================================== */
.form-step-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-lg);
    gap: var(--spacing-md);
}

.step-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    max-width: 200px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background: var(--neutral-200);
    color: var(--neutral-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    transition: var(--transition);
    position: relative;
    z-index: 2;
    box-shadow: var(--shadow-sm);
}

.step-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--neutral-600);
    transition: var(--transition);
}

.step-connector {
    height: 2px;
    background: var(--neutral-200);
    flex: 1;
    margin: 0 var(--spacing-md);
    transition: var(--transition);
    border-radius: var(--border-radius-full);
}

/* États des étapes */
.step-item.active .step-number {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow), 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: scale(1.1);
}

.step-item.active .step-title {
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
}

.step-item.completed .step-number {
    background: var(--gradient-success);
    color: var(--white);
    box-shadow: var(--shadow);
}

.step-item.completed .step-number::after {
    content: '✓';
    position: absolute;
    font-size: var(--font-size-sm);
}

.step-item.completed + .step-item .step-connector {
    background: var(--gradient-success);
}

/* ========================================
   CONTENEUR PRINCIPAL
   ======================================== */
.main-content {
    min-height: calc(100vh - 200px);
}

.demande_form_title {
    background: var(--gradient-secondary);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    margin: var(--spacing-xl) var(--spacing-xl) 0;
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.demande_form_title::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-shimmer);
    animation: shimmer 3s infinite;
}

.demande_form_title h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-family-serif);
    margin: 0;
    position: relative;
    z-index: 1;
}

.demandeForm_container {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    margin: 0 var(--spacing-xl) var(--spacing-xl);
    border-radius: 0 0 var(--border-radius-xl) var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    position: relative;
    backdrop-filter: blur(10px);
}

.demandeForm_container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

/* ========================================
   SECTION D'INTRODUCTION
   ======================================== */
.first_step_demande {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    border: var(--border-width) solid var(--neutral-200);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.first_step_demande::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.first_step_title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.first_step_title::before {
    content: '🎯';
    font-size: var(--font-size-2xl);
}

.first_step_text {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xl);
    color: var(--neutral-600);
    line-height: var(--line-height-relaxed);
}

.light_text {
    font-weight: var(--font-weight-normal);
    font-style: italic;
    color: var(--neutral-500);
}

/* ========================================
   FORMULAIRES ET CHAMPS MODERNISÉS
   ======================================== */
.form-field {
    position: relative;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition);
}

.form-field.focused {
    transform: translateY(-1px);
}

.form-legend {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-800);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--neutral-200);
}

/* Styles unifiés pour tous les inputs et selects */
.form-input,
.form-select {
    width: 100%;
    max-width: 600px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    border: var(--border-width-thick) solid var(--neutral-200);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--neutral-700);
    transition: var(--transition);
    outline: none;
    position: relative;
    appearance: none;
    box-shadow: var(--shadow-xs);
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-sm) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: calc(var(--spacing-lg) + 1.5em);
}

/* États des champs */
.form-input:hover,
.form-select:hover {
    border-color: var(--neutral-300);
    box-shadow: var(--shadow-sm);
}

.form-input:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1), var(--shadow);
    transform: translateY(-1px);
}

.form-input::placeholder {
    color: var(--neutral-400);
    font-weight: var(--font-weight-normal);
}

/* États de validation */
.form-input.error,
.form-select.error {
    border-color: var(--error) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
    animation: shake 0.5s ease-in-out;
}

.form-input.success,
.form-select.success {
    border-color: var(--success) !important;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1) !important;
}

/* Icônes de validation */
.input-validation-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-lg);
    z-index: 1;
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.input-validation-icon.success {
    color: var(--success);
}

.input-validation-icon.error {
    color: var(--error);
}

.form-input.success ~ .input-validation-icon.success,
.form-select.success ~ .input-validation-icon.success,
.form-input.error ~ .input-validation-icon.error,
.form-select.error ~ .input-validation-icon.error {
    opacity: 1;
}

/* Hints et conseils */
.field-hint {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--neutral-50);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--info);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.form-field:focus-within .field-hint,
.form-field:hover .field-hint {
    opacity: 1;
    max-height: 100px;
    padding: var(--spacing-xs) var(--spacing-sm);
    animation: fadeIn 0.3s ease-out;
}

/* ========================================
   MESSAGES D'ERREUR AMÉLIORÉS
   ======================================== */
.error-message {
    color: var(--error);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    margin-top: var(--spacing-sm);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--error-light);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--error);
    animation: slideIn 0.3s ease-out;
    line-height: var(--line-height-tight);
}

.error-message.show {
    display: flex;
}

.error-message::before {
    content: '⚠️';
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

/* ========================================
   BOUTONS MODERNISÉS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: var(--border-width-thick) solid transparent;
    border-radius: var(--border-radius);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-height: 48px;
    user-select: none;
    background: transparent;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Variantes de boutons */
.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background: var(--gradient-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--neutral-600);
    border-color: var(--neutral-200);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--neutral-50);
    border-color: var(--neutral-300);
    color: var(--neutral-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-success {
    background: var(--gradient-success);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-error {
    background: var(--gradient-error);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

/* État de chargement */
.btn.loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: var(--border-radius-full);
    animation: spin 1s linear infinite;
    color: var(--white);
}

/* Effet ripple */
.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-full);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active:not(:disabled)::before {
    width: 300px;
    height: 300px;
}

/* Conteneur des actions */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    max-width: 600px;
}

/* ========================================
   TABLEAUX DE RÉSULTATS
   ======================================== */
.simulation_results {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-xl);
    border: var(--border-width) solid var(--neutral-200);
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s ease-out;
}

.type_credit_result {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--neutral-700);
}

.type_color {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tableau_details,
.tableau_amortissement {
    margin-top: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: var(--border-width) solid var(--neutral-200);
}

.details_table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.tableau_title {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    text-align: center;
}

.tableau_title_amortissement {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    text-align: center;
}

.tableau_sub {
    background: var(--primary-ultra-light);
    color: var(--primary-dark);
}

.tableau_sub_amortissement {
    background: #fef3c7;
    color: #92400e;
}

.tableau_sub th {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    border-bottom: var(--border-width) solid var(--neutral-200);
}

.tableau_data {
    background: var(--bg-primary);
}

.tableau_data_amortissement {
    background: var(--bg-primary);
}

.tableau_data td,
.tableau_data_amortissement td {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--neutral-800);
    text-align: center;
    border-bottom: var(--border-width) solid var(--neutral-100);
}

.devise,
.mois {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--neutral-500);
}

/* ========================================
   SYSTÈME DE NOTIFICATIONS TOAST
   ======================================== */
.toast {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    min-width: 300px;
    max-width: 500px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-2xl);
    border-left: 4px solid var(--primary);
    z-index: var(--z-toast);
    transform: translateX(calc(100% + var(--spacing-lg)));
    transition: var(--transition);
    opacity: 0;
    backdrop-filter: blur(10px);
}

.toast.toast-show {
    transform: translateX(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    gap: var(--spacing-md);
}

.toast-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
    color: var(--neutral-700);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
}

.toast-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--neutral-400);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.toast-close:hover {
    background: var(--neutral-100);
    color: var(--neutral-600);
}

/* Types de toast */
.toast-success {
    border-left-color: var(--success);
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error {
    border-left-color: var(--error);
}

.toast-error .toast-icon {
    color: var(--error);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-warning .toast-icon {
    color: var(--warning);
}

.toast-info {
    border-left-color: var(--info);
}

.toast-info .toast-icon {
    color: var(--info);
}

/* ========================================
   MODAL DE RÉCUPÉRATION
   ======================================== */
.recovery-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.recovery-modal.show {
    opacity: 1;
    visibility: visible;
}

.recovery-modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    transform: scale(0.9);
    transition: var(--transition);
}

.recovery-modal.show .recovery-modal-content {
    transform: scale(1);
}

.recovery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--neutral-200);
}

.recovery-header h3 {
    margin: 0;
    color: var(--neutral-800);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.recovery-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--neutral-400);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    line-height: 1;
}

.recovery-close:hover {
    background: var(--neutral-100);
    color: var(--neutral-600);
}

.recovery-body {
    padding: var(--spacing-xl);
}

.recovery-description {
    color: var(--neutral-600);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.recovery-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.recovery-actions .btn {
    flex: 1;
}

.recovery-results,
.recovery-not-found,
.recovery-exists {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: var(--border-width) solid var(--neutral-200);
}

.recovery-found {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.recovery-icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.recovery-details h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--neutral-800);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.recovery-details p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--neutral-600);
    font-size: var(--font-size-sm);
}

.recovery-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.recovery-progress-bar {
    flex: 1;
    height: 8px;
    background: var(--neutral-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.recovery-progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    transition: width 0.8s ease;
    width: 0%;
}

.recovery-progress span {
    font-size: var(--font-size-xs);
    color: var(--neutral-500);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}

/* États spéciaux */
.recovery-found {
    background: var(--success-light);
    border-color: rgba(16, 185, 129, 0.2);
}

.recovery-not-found {
    background: var(--error-light);
    border-color: rgba(239, 68, 68, 0.2);
}

.recovery-exists {
    background: var(--info-light);
    border-color: rgba(59, 130, 246, 0.2);
}

/* ========================================
   SPINNER DE CHARGEMENT MODERNISÉ
   ======================================== */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
    gap: var(--spacing-lg);
}

.spinner {
    width: 80px;
    height: 80px;
    border: 6px solid var(--neutral-200);
    border-left: 6px solid var(--primary);
    border-radius: var(--border-radius-full);
    animation: spin 1s linear infinite;
}

.spinner-text {
    font-size: var(--font-size-lg);
    color: var(--neutral-600);
    font-weight: var(--font-weight-medium);
    text-align: center;
}

.spinner-progress {
    width: 200px;
    height: 4px;
    background: var(--neutral-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.spinner-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-full);
    animation: progress 3s ease-in-out;
}

@keyframes progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* ========================================
   MESSAGE DE SUCCÈS
   ======================================== */
.successMessage {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.success-header {
    margin-bottom: var(--spacing-xl);
}

.success-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--success);
    margin-bottom: var(--spacing-sm);
}

.success-header p {
    font-size: var(--font-size-lg);
    color: var(--neutral-600);
}

.formualiresSoumis {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--success-light);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--success);
}

.formStepOne {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.formValidateText {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--neutral-700);
    text-align: left;
}

.logColor {
    color: var(--primary);
    font-weight: var(--font-weight-bold);
}

.logColor a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--primary);
    text-underline-offset: 2px;
    transition: var(--transition);
}

.logColor a:hover {
    text-decoration-thickness: 2px;
}

/* ========================================
   SECTION RÉPONSE IMMÉDIATE
   ======================================== */
.reponse_immediate {
    margin-top: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--secondary);
    border-radius: var(--border-radius);
    color: var(--white);
    box-shadow: var(--shadow-md);
    animation: pulse 3s infinite;
}

.clock {
    width: 35px;
    height: 35px;
    filter: brightness(0) invert(1);
    flex-shrink: 0;
}

.reponse_text {
    flex: 1;
}

.reponse_text_one {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    line-height: var(--line-height-tight);
}

.reponse_text_one + .reponse_text_one {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    opacity: 0.9;
    margin-bottom: 0;
}

/* ========================================
   FOOTER MODERNISÉ
   ======================================== */
.demande_footer {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-2xl);
    background: var(--gradient-secondary);
    color: var(--white);
}

.logo_footer {
    margin-bottom: var(--spacing-xl);
}

.footLogo {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.demande_footer_text {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.demande_footer_text p {
    margin-bottom: var(--spacing-md);
}

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

/* ========================================
   DESIGN RESPONSIVE MODERNE
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    .demande_head {
        padding: var(--spacing-md) var(--spacing-lg);
        flex-direction: column;
        gap: var(--spacing-md);
        position: relative;
    }
    
    .safe_form {
        width: 100%;
        justify-content: center;
    }

    .recovery-trigger {
        position: static;
        transform: none;
        width: 100%;
        writing-mode: initial;
        text-orientation: initial;
        border-radius: var(--border-radius);
        margin-bottom: var(--spacing-lg);
        padding: var(--spacing-md);
    }
    
    .section_progressBar,
    .demande_form_title,
    .demandeForm_container {
        margin-inline: var(--spacing-md);
    }
    
    .demandeForm_container {
        padding: var(--spacing-lg);
    }
    
    .first_step_demande {
        padding: var(--spacing-lg);
    }

    .demande_form_title h1 {
        font-size: var(--font-size-xl);
    }
    
    .form-input,
    .form-select {
        max-width: 100%;
        font-size: var(--font-size-sm);
    }
    
    .form-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        min-height: 52px;
    }

    .form-step-indicator {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .step-connector {
        display: none;
    }

    .step-item {
        max-width: none;
        justify-content: center;
    }
    
    .tableau_data td,
    .tableau_data_amortissement td {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
    
    .demande_footer {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .simulation_results {
        padding: var(--spacing-lg);
    }

    .toast {
        left: var(--spacing-md);
        right: var(--spacing-md);
        min-width: auto;
        transform: translateY(-100%);
    }
    
    .toast.toast-show {
        transform: translateY(0);
    }

    .recovery-modal-content {
        width: 95%;
        margin: var(--spacing-lg);
    }
    
    .recovery-actions {
        flex-direction: column;
    }
    
    .recovery-progress {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .demande_form_title h1 {
        font-size: var(--font-size-lg);
    }
    
    .first_step_title {
        font-size: var(--font-size-lg);
    }
    
    .form-input,
    .form-select {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .field-hint {
        font-size: 10px;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: var(--font-size-xs);
    }

    .step-title {
        font-size: var(--font-size-xs);
    }
}

/* ========================================
   OPTIMISATIONS POUR LES PERFORMANCES
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Optimisation GPU */
.btn,
.form-input,
.form-select,
.progress-bar,
.toast,
.recovery-modal-content {
    will-change: transform;
    transform: translateZ(0);
}

/* Print styles */
@media print {
    .recovery-trigger,
    .toast {
        display: none !important;
    }
    
    .demandeForm_container {
        box-shadow: none;
        border: var(--border-width) solid var(--neutral-300);
    }
}

@import url('modern_styles.css');