/* ==========================================================================
   VARIABLES & CHARTE GRAPHIQUE
   ========================================================================== */
:root {
    --bg-body: #f4f7f6;
    --navbar-bg: #1a1530;
    --accent-green: #80c49c;
    --text-dark: #333333;
    --text-light: #888888;
    --white: #ffffff;
    --border-color: #e0e0e0;
    
    /* Statuts & Priorités */
    --badge-red-bg: #ffebee; --badge-red-txt: #d32f2f;     /* Critique */
    --badge-orange-bg: #fff3e0; --badge-orange-txt: #e65100; /* Bloquant / En attente */
    --badge-blue-bg: #e3f2fd; --badge-blue-txt: #1976d2;   /* Normal / Pris en charge */
    --badge-green-bg: #e8f5e9; --badge-green-txt: #388e3c; /* Clôturé */
}

/* ==========================================================================
   BASE & RESET
   ========================================================================== */
body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-dark);
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

/* ==========================================================================
   TYPOGRAPHIE & UTILITAIRES
   ========================================================================== */
a { text-decoration: none; color: inherit; }
h1, h2, h3 { margin-top: 0; color: var(--navbar-bg); }
.text-red { color: var(--badge-red-txt); font-weight: 500; }
.text-blue { color: var(--badge-blue-txt); font-weight: 500; }
.text-green { color: var(--accent-green); font-weight: 500; }
.text-orange { color: var(--badge-orange-txt); font-weight: 500; }

/* ==========================================================================
   COMPOSANTS UI
   ========================================================================== */
.card {
    background: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    margin-bottom: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { box-shadow: 0 6px 16px rgba(0,0,0,0.06); }

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid transparent;
    display: inline-block;
}
.badge.red { background-color: var(--badge-red-bg); color: var(--badge-red-txt); border-color: #ffcdd2; }
.badge.orange { background-color: var(--badge-orange-bg); color: var(--badge-orange-txt); border-color: #ffe0b2; }
.badge.blue { background-color: var(--badge-blue-bg); color: var(--badge-blue-txt); border-color: #bbdefb; }
.badge.green { background-color: var(--badge-green-bg); color: var(--badge-green-txt); border-color: #c8e6c9; }

/* Formulaires */
.form-group { margin-bottom: 1.2rem; }
label { display: block; margin-bottom: 0.5rem; font-weight: 500; font-size: 0.9rem; }
input[type="text"], input[type="email"], input[type="password"], select, textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box;
    font-family: inherit;
    transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-green); }

/* Boutons */
.btn-submit, .btn-green {
    background-color: var(--accent-green);
    color: var(--white);
    font-weight: bold;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}
.btn-submit:hover, .btn-green:hover { background-color: #6eb58a; transform: translateY(-1px); }
.btn-submit { width: 100%; font-size: 1rem; margin-top: 1rem; padding: 1rem; }

.btn-outline {
    border: 1px solid var(--border-color);
    background: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
}
.btn-outline:hover { background: #fafafa; }

/* Upload Zone Drag & Drop */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    background-color: #fafafa;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.3s, background-color 0.3s;
}
.upload-zone.dragover {
    border-color: var(--accent-green);
    background-color: rgba(128, 196, 156, 0.1);
}
.upload-zone p { margin: 0; font-size: 0.9rem; font-weight: 500; }
.upload-zone span { font-size: 0.75rem; color: var(--text-light); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 1rem; text-align: left; border-bottom: 1px solid var(--border-color); }
th { color: var(--text-light); font-weight: 500; }
tbody tr:hover { background-color: rgba(0,0,0,0.01); }

/* Responsive */
@media (max-width: 768px) {
    .container { grid-template-columns: 1fr !important; }
    .stats-grid { grid-template-columns: 1fr !important; }
    .processing-grid { grid-template-columns: 1fr !important; }
    .nav-links { display: none; } /* Pour simplifier sur mobile */
    .responsive-grid { grid-template-columns: 1fr !important; }
}

/* ==========================================================================
   CHATBOT FLOTTANT
   ========================================================================== */
.chatbot-widget { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; align-items: flex-end; font-family: 'Roboto', sans-serif; }
.chatbot-toggle { background: var(--accent-green); color: var(--navbar-bg); width: 60px; height: 60px; border-radius: 50%; border: none; box-shadow: 0 4px 12px rgba(0,0,0,0.15); cursor: pointer; display: flex; justify-content: center; align-items: center; transition: transform 0.3s; }
.chatbot-toggle:hover { transform: scale(1.1); }
.chatbot-window { width: 360px; height: 500px; background: var(--white); border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.2); display: flex; flex-direction: column; overflow: hidden; margin-bottom: 15px; transition: opacity 0.3s, transform 0.3s; transform-origin: bottom right; }
.chatbot-window.hidden { opacity: 0; transform: scale(0.5); pointer-events: none; }
.chatbot-header { background: var(--navbar-bg); color: var(--white); padding: 15px; display: flex; justify-content: space-between; align-items: center; }
.chatbot-avatar { width: 35px; height: 35px; background: var(--accent-green); color: var(--navbar-bg); font-weight: bold; display: flex; justify-content: center; align-items: center; border-radius: 50%; }
.chatbot-messages { flex: 1; padding: 15px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; background: #f9f9f9; }
.bot-msg { background: #e3f2fd; color: #1a1530; padding: 10px 15px; border-radius: 15px 15px 15px 0; max-width: 85%; align-self: flex-start; font-size: 0.9rem; line-height: 1.4; box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.user-msg { background: var(--accent-green); color: var(--white); padding: 10px 15px; border-radius: 15px 15px 0 15px; max-width: 85%; align-self: flex-end; font-size: 0.9rem; line-height: 1.4; box-shadow: 0 1px 2px rgba(0,0,0,0.05); }
.chatbot-suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 5px; }
.chatbot-suggestion-btn { background: var(--white); border: 1px solid var(--accent-green); color: var(--accent-green); padding: 6px 12px; border-radius: 20px; font-size: 0.8rem; cursor: pointer; transition: all 0.2s; }
.chatbot-suggestion-btn:hover { background: var(--accent-green); color: var(--white); }
.chatbot-input-area { display: flex; padding: 10px; border-top: 1px solid var(--border-color); background: var(--white); }
.chatbot-input-area input { flex: 1; border: none; padding: 10px; outline: none; background: transparent; font-family: inherit; }
.chatbot-input-area button { background: none; border: none; color: var(--accent-green); cursor: pointer; padding: 10px; display: flex; justify-content: center; align-items: center; }
.typing-indicator { display: flex; gap: 4px; padding: 12px 15px; background: #e3f2fd; border-radius: 15px 15px 15px 0; align-self: flex-start; width: fit-content; }
.typing-indicator span { width: 6px; height: 6px; background: #1a1530; border-radius: 50%; animation: typing 1s infinite alternate; opacity: 0.6; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0% { transform: translateY(0); opacity: 0.6; } 100% { transform: translateY(-4px); opacity: 1; } }