body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f5f7fb;
    color: #1f2937;
}
.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 0 16px;
}
.card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    padding: 24px;
    margin-bottom: 20px;
}
.grid {
    display: grid;
    gap: 16px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}
input, select, textarea {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    box-sizing: border-box;
}
textarea { min-height: 120px; resize: vertical; }
button, .btn {
    display: inline-block;
    background: #2563eb;
    color: white;
    border: 0;
    padding: 12px 18px;
    border-radius: 10px;
    text-decoration: none;
    cursor: pointer;
}
.btn-secondary { background: #4b5563; }
.badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: bold;
    background: #e5e7eb;
}
.badge.nouveau { background: #dbeafe; color: #1d4ed8; }
.badge.repondu { background: #ede9fe; color: #6d28d9; }
.badge.en_cours { background: #fef3c7; color: #b45309; }
.badge.traite { background: #dcfce7; color: #15803d; }
.badge.resolu { background: #d1fae5; color: #065f46; }
.table {
    width: 100%;
    border-collapse: collapse;
}
.table th, .table td {
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
    vertical-align: top;
}
.message {
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 12px;
}
.message.client { background: #eff6ff; }
.message.admin { background: #ecfdf5; }
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.alert {
    padding: 14px;
    border-radius: 10px;
    margin-bottom: 16px;
}
.alert-success { background: #dcfce7; color: #166534; }
.alert-error { background: #fee2e2; color: #991b1b; }
.small { color: #6b7280; font-size: 14px; }