/* =======================
   Variables CSS
   ======================= */
:root {
    /* Couleurs principales (Emerald 400/600/700 pour un look moderne) */
    --primary-color: #4ade80; /* Vert vif (Emerald 400) */
    --primary-color-hover: #10b981; /* Emeraude 600 */
    --primary-color-dark: #059669; /* Emeraude 700 */

    --primary-green: var(--primary-color);
    --primary-green-hover: var(--primary-color-hover);
    --primary-green-dark: var(--primary-color-dark);
    --success-green: var(--primary-color);
    --warning-yellow: #f59e0b;
    --danger-red: #ef4444;

    /* Couleurs secondaires pour les boutons */
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --emerald-600: #10b981;
    --emerald-700: #059669;

    /* Neutres */
    --black: #000000;
    --white: #ffffff;

    /* Échelle de gris */
    --gray-950: #0a0a0a;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;

    /* Couleurs d'application par défaut (Dark Mode) */
    --app-bg: var(--gray-900);
    --app-text: var(--gray-100);
    --app-text-muted: var(--gray-400);

    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;

    /* Ombres */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --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);
}

/* =======================
   Réinitialisation de base
   ======================= */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    background-color: var(--app-bg);
    color: var(--app-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.5;
    margin: 0;
}

/* Factorisation des transitions pour les éléments interactifs */
a, button, input, select, textarea, .btn, .card, .form-section, .nav-link {
    transition: all var(--transition-normal);
}

/* Respect du prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

/* =======================
   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 shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

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

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

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

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

@keyframes fadeInCalendar {
    from { opacity: 0; transform: translateY(-10px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes dayFadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* Classes d'animation */
.animate-fadeIn { animation: fadeIn 0.3s ease-out; }
.animate-slideIn { animation: slideIn 0.3s ease-out; }
.animate-shake { animation: shake 0.3s ease-in-out; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-bounce { animation: bounce 1s infinite; }

/* =======================
   Boutons Modernisés
   ======================= */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    outline: none;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.btn:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

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

/* Bouton primaire moderne avec gradient */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-hover));
    color: var(--black);
    box-shadow: 0 4px 6px -1px rgba(74, 216, 128, 0.2);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(74, 216, 128, 0.4);
    background: linear-gradient(135deg, var(--primary-green-hover), var(--primary-green-dark));
}

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

/* Effet shimmer sur les boutons */
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    left: -100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

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

/* Bouton primaire moderne (style base.html) */
.btn-primary-modern {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s;
}

.btn-primary-modern:hover::before {
    left: 100%;
}

.btn-primary-modern:hover {
    transform: translateY(-2px);
}

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

/* Effet ripple au clic */
.ripple {
    position: relative;
    overflow: hidden;
}

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

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* Boutons secondaires */
.btn-secondary {
    background: var(--gray-700);
    color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-600);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Boutons danger */
.btn-danger {
    background: linear-gradient(135deg, var(--danger-red), #dc2626);
    color: var(--white);
    box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    transform: translateY(-1px);
    box-shadow: 0 8px 15px -3px rgba(239, 68, 68, 0.4);
}

/* Boutons outline */
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-green);
    color: var(--black);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px -5px rgba(74, 216, 128, 0.3);
}

/* =======================
   Champs / Formulaires
   ======================= */
.field-group {
    margin-bottom: 1rem;
}

.field-group label {
    display: block;
    color: var(--gray-300);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Styles par défaut pour tous les champs */
.field-group input,
.field-group select,
.field-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-600);
    background-color: var(--gray-900);
    color: var(--white);
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
}

/* États focus - priorité absolue */
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-green) !important;
    box-shadow: 0 0 0 3px rgba(74, 216, 128, 0.2) !important;
    transform: translateY(-1px);
}

.field-error {
    animation: shake 0.3s ease-in-out;
}

.field-error input,
.field-error select,
.field-error textarea {
    border-color: var(--danger-red) !important;
    background-color: rgba(239, 68, 68, 0.1) !important;
}

.error-message {
    color: var(--danger-red);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.error-message i {
    font-size: 0.75rem;
}

/* Validation native seulement si pas de classe JS */
input:not(.border-red-500):not(.border-green-500):invalid:not(:focus) {
    border-color: var(--danger-red);
    background: rgba(239, 68, 68, 0.1);
}

/* Classes JS explicites - priorité maximale */
.border-red-500 {
    border-color: var(--danger-red) !important;
    background: rgba(239, 68, 68, 0.05) !important;
}

.border-green-500 {
    border-color: var(--primary-green) !important;
    background: rgba(74, 216, 128, 0.05) !important;
}

.border-yellow-500 {
    border-color: var(--warning-yellow) !important;
    background: rgba(245, 158, 11, 0.05) !important;
}

.border-gray-600 {
    border-color: var(--gray-600) !important;
}

/* =======================
   Progress bar
   ======================= */
.progress-container {
    width: 100%;
    background: var(--gray-700);
    border-radius: 9999px;
    height: 0.5rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-green), #3b82f6);
    border-radius: 9999px;
    position: relative;
    transition: width var(--transition-normal);
}

.progress-bar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: progress-shimmer 2s infinite;
}

/* =======================
   Sections / Cards / Nav
   ======================= */
.form-section {
    background: linear-gradient(135deg, var(--gray-800), var(--gray-900));
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--gray-700);
    position: relative;
    overflow: hidden;
}

.form-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-green), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.form-section:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gray-600);
}

.form-section:hover::before {
    opacity: 1;
}

.nav-link {
    position: relative;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--gray-300);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link:hover {
    background: var(--gray-800);
    color: var(--white);
    transform: translateX(4px);
}

.nav-link-active {
    background: var(--gray-800);
    font-weight: 600;
    color: var(--primary-green);
}

.nav-link-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-green);
    border-radius: 0 2px 2px 0;
}

.card {
    background: var(--gray-800);
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid var(--gray-700);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-600);
}

.card-commission {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-hover));
    color: var(--black);
    border: none;
}

.card-commission:hover {
    box-shadow: 0 10px 15px -3px rgba(74, 216, 128, 0.4);
}

/* =======================
   Select2 (harmonisé dark)
   ======================= */
.select2-container {
    width: 100% !important;
}

.select2-container--default .select2-selection--single {
    background: var(--gray-900) !important;
    border: 1px solid var(--gray-600) !important;
    border-radius: 0.5rem !important;
    height: 42px !important;
    display: flex !important;
    align-items: center !important;
    padding: 0 1rem !important;
    color: var(--white) !important;
    cursor: pointer !important;
    transition: all var(--transition-fast) !important;
}

.select2-container--default .select2-selection--single:hover {
    border-color: var(--primary-green) !important;
}

.select2-selection__rendered {
    color: var(--white) !important;
    font-weight: 500 !important;
    line-height: 42px !important;
}

/* Dropdown */
.select2-dropdown {
    background: var(--gray-900) !important;
    border: 1px solid var(--gray-600) !important;
    border-radius: 0.5rem !important;
    box-shadow: var(--shadow-xl) !important;
    animation: fadeInCalendar 0.25s ease-out;
}

.select2-results {
    background: var(--gray-900) !important;
}

.select2-results__options {
    background: var(--gray-900) !important;
}

.select2-results__option {
    padding: 0.75rem 1rem !important;
    font-size: 1rem !important;
    color: var(--white) !important;
    background: var(--gray-900) !important;
    border-radius: 0.375rem !important;
    margin: 0 0.25rem !important;
    transition: all var(--transition-fast) !important;
}

.select2-results__option:hover,
.select2-results__option--highlighted {
    background: var(--primary-green) !important;
    color: var(--black) !important;
}

.select2-results__option--selected {
    background: var(--gray-800) !important;
    color: var(--primary-green) !important;
}

/* Icône chevron */
.select2-selection__arrow {
    color: var(--gray-400) !important;
    height: 42px !important;
    display: flex !important;
    align-items: center !important;
    transition: all var(--transition-fast) !important;
}

.select2-container--open .select2-selection__arrow {
    transform: rotate(180deg);
    color: var(--primary-green) !important;
}

/* Champ de recherche dans le dropdown */
.select2-search--dropdown {
    background: var(--gray-900) !important;
    padding: 0.5rem !important;
}

.select2-search__field {
    background: var(--gray-800) !important;
    border: 1px solid var(--gray-600) !important;
    color: var(--white) !important;
    caret-color: var(--primary-green) !important;
    border-radius: 0.375rem !important;
    padding: 0.5rem !important;
}

.select2-search__field:focus {
    border-color: var(--primary-green) !important;
    outline: none !important;
    box-shadow: 0 0 0 3px rgba(74, 216, 128, 0.2) !important;
}

.select2-search__field::selection {
    background: var(--primary-green) !important;
    color: var(--black) !important;
}

/* Message "Aucun résultat" */
.select2-results__message {
    color: var(--gray-400) !important;
    background: var(--gray-900) !important;
}

/* =======================
   Flatpickr (dark)
   ======================= */
.flatpickr-calendar {
    background: linear-gradient(135deg, var(--gray-900), var(--gray-950)) !important;
    border: 2px solid var(--gray-600) !important;
    border-radius: 1rem !important;
    box-shadow: 0 20px 35px -5px rgba(0, 0, 0, 0.8) !important;
    animation: fadeInCalendar 0.3s ease-out;
}

.flatpickr-months {
    background: var(--gray-950) !important;
    border-bottom: 2px solid var(--primary-green) !important;
}

.flatpickr-day {
    color: var(--white) !important;
    border-radius: 0.5rem !important;
    animation: dayFadeIn 0.2s ease-out;
    transition: all var(--transition-fast) !important;
}

.flatpickr-day:hover:not(.flatpickr-disabled) {
    background: var(--primary-green) !important;
    color: var(--black) !important;
    transform: scale(1.05);
}

.flatpickr-day.selected {
    background: var(--primary-green) !important;
    color: var(--black) !important;
}

/* =======================
   Utilitaires
   ======================= */
.text-accent {
    color: var(--primary-green) !important;
}

.text-muted {
    color: var(--app-text-muted) !important;
}

.hidden {
    display: none !important;
}

/* Badge moderne */
.badge-modern {
    background: linear-gradient(135deg, rgba(74, 216, 128, 0.2), rgba(16, 185, 129, 0.2));
    border: 1px solid rgba(74, 216, 128, 0.3);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    color: var(--primary-green);
}

/* Sidebar mobile */
.mobile-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 16rem;
    z-index: 40;
    overflow-y: auto;
}

/* Logo avec fallback */
.brand-chip {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-hover));
    transition: transform var(--transition-normal);
}

.brand-chip:hover {
    transform: scale(1.1) rotate(5deg);
}

/* =======================
   Responsive Design
   ======================= */
@media (max-width: 768px) {
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    .form-section {
        padding: 1.5rem;
    }

    .card {
        padding: 1rem;
    }
}

/* =======================
   Accessibilité
   ======================= */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-green);
    color: var(--black);
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* Focus visible pour navigation clavier */
*:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}