:root {
    --color-primary: #127F9E;
    --color-primary-light: #1a9fc5;
    --color-primary-dark: #0e6680;
    --color-dark: #131140;
    --color-dark-light: #1d1a5e;
    --color-text: #333344;
    --color-text-secondary: #5a5a7a;
    --color-bg: #f4f6f8;
    --color-bg-white: #ffffff;
    --color-border: #e2e5e9;
    --color-border-light: #f0f1f3;
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 1px 2px rgba(19,17,64,0.05);
    --shadow-md: 0 4px 6px -1px rgba(19,17,64,0.08);
    --shadow-lg: 0 10px 25px -3px rgba(19,17,64,0.12);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --transition: 0.2s ease-in-out;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    font-size: 15px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-dark);
    font-weight: 600;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

/* ================== TYPOGRAPHY & LAYOUT ================== */
.app-header {
    background-color: var(--color-dark);
    color: white;
    padding: 0 20px;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-logo {
    height: 32px;
    width: auto;
}

.header-left h1 {
    color: white;
    font-size: 1.2rem;
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.9rem;
}

.app-tabs {
    background: var(--color-bg-white);
    display: flex;
    padding: 0 20px;
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
}

.app-tabs::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.tab {
    background: none;
    border: none;
    padding: 15px 20px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.tab:hover {
    color: var(--color-primary);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

main {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

/* ================== BUTTONS ================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    font-family: var(--font-family);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: var(--color-bg-white);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    background-color: var(--color-bg);
    border-color: #cbd5e1;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
}
.btn-danger:hover {
    background-color: #dc2626;
}

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

.btn-sm {
    padding: 5px 10px;
    font-size: 0.85rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ================== FORMS & INPUTS ================== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-dark);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-family);
    transition: var(--transition);
    background-color: var(--color-bg-white);
    color: var(--color-text);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(18, 127, 158, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a5a7a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* ================== CARDS & PANELS ================== */
.card {
    background-color: var(--color-bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fcfcfd;
}

.card-header h2 {
    font-size: 1.1rem;
    margin: 0;
}

.card-body {
    padding: 20px;
}

.filters-bar {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
    background: var(--color-bg-white);
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
}

/* ================== TABLES ================== */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-bg-white);
    text-align: left;
    font-size: 0.9rem;
}

th, td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-light);
}

th {
    background-color: #f8fafc;
    color: var(--color-text-secondary);
    font-weight: 600;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

tr:last-child td {
    border-bottom: none;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background-color: #f1f5f9;
}

/* Inline Edit Select */
.status-select {
    padding: 4px 24px 4px 8px;
    font-size: 0.85rem;
    border-radius: 20px;
    font-weight: 500;
    border: 1px solid transparent;
    background-color: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.status-select:hover {
    border-color: var(--color-border);
    background-color: var(--color-bg-white);
}

/* ================== BADGES & STATUSES ================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: var(--color-border-light);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.badge-tag {
    background-color: #e0f2fe;
    color: #0369a1;
    margin-right: 4px;
    margin-bottom: 4px;
    border: 1px solid #bae6fd;
}

/* Custom Status Colors */
.status-1 { color: #64748b; } /* À contacter */
.status-2 { color: #f59e0b; } /* Appel manqué */
.status-3 { color: #3b82f6; } /* Décroché */
.status-4 { color: #8b5cf6; } /* SMS envoyé */
.status-5 { color: #14b8a6; } /* Relance J+4 */
.status-6 { color: #a855f7; } /* Démo envoyée */
.status-7 { color: #d946ef; } /* Démo faite */
.status-8 { color: #f97316; } /* En discussion */
.status-9 { color: #10b981; font-weight: 700; } /* Signé */
.status-10 { color: #94a3b8; } /* Classé sans suite */
.status-11 { color: #ef4444; } /* Pas intéressé */

/* ================== MODALS ================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(19, 17, 64, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(2px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    transform: translateY(20px);
    transition: 0.3s ease;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.25rem;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    line-height: 1;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: #fcfcfd;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ================== TOASTS ================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background-color: var(--color-dark);
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    animation: slideInRight 0.3s forwards;
    max-width: 350px;
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-danger); }
.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.info { border-left: 4px solid var(--color-info); }

.toast.hiding {
    animation: fadeOut 0.3s forwards;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    to { opacity: 0; transform: translateY(10px); }
}

/* ================== LOGIN PAGE ================== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary-dark) 100%);
    padding: 20px;
}

.login-card {
    background: var(--color-bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    width: 180px;
    margin-bottom: 10px;
}

.login-slogan {
    color: var(--color-text-secondary);
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.login-card .form-group {
    text-align: left;
}

.login-card .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    margin-top: 10px;
}

/* ================== UTILITIES & HELPERS ================== */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }

.loader {
    border: 3px solid rgba(18, 127, 158, 0.2);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    display: inline-block;
}

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

/* Tags Input Component */
.tags-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    min-height: 42px;
    background: var(--color-bg-white);
}

.tags-input-container input {
    border: none;
    outline: none;
    flex: 1;
    min-width: 120px;
    font-size: 0.9rem;
}

.tag-badge {
    display: flex;
    align-items: center;
    background: #e0f2fe;
    color: #0369a1;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.tag-badge button {
    background: none;
    border: none;
    color: #0369a1;
    margin-left: 6px;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
}

.tag-autocomplete {
    position: absolute;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    max-height: 150px;
    overflow-y: auto;
    z-index: 100;
    width: 100%;
}

.tag-autocomplete-item {
    padding: 8px 12px;
    cursor: pointer;
}
.tag-autocomplete-item:hover {
    background: var(--color-bg);
}

/* Checkbox alignment */
.checkbox-cell {
    width: 40px;
    text-align: center;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-white);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.pagination button:hover {
    background: var(--color-bg);
}

.pagination button.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .filters-bar {
        grid-template-columns: 1fr;
    }
    
    .app-header {
        padding: 0 12px;
    }
    
    main {
        padding: 12px;
    }
    
    .modal {
        height: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
    
    .modal-footer {
        border-radius: 0;
    }
}