:root {
    --c-bg: #f5f6f8;
    --c-card: #ffffff;
    --c-text: #1f2937;
    --c-muted: #6b7280;
    --c-primary: #2563eb;
    --c-primary-d: #1d4ed8;
    --c-border: #e5e7eb;
    --c-ok: #16a34a;
    --c-err: #dc2626;
    --c-warn: #d97706;
    --c-info: #0284c7;
    --r: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.45;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    display: flex; align-items: center; gap: 16px;
    padding: 10px 20px;
    background: #111827; color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.topbar .brand a { color: #fff; font-weight: 600; font-size: 17px; }
.topbar .mainnav { flex: 1; display: flex; gap: 4px; flex-wrap: wrap; margin-left: 20px; }
.topbar .mainnav a {
    color: #d1d5db; padding: 6px 12px; border-radius: var(--r);
}
.topbar .mainnav a:hover { background: rgba(255,255,255,.1); color: #fff; text-decoration: none; }
.topbar .userbox { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.topbar .userbox small { color: #9ca3af; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

h1 { margin-top: 0; font-size: 24px; }
h2 { font-size: 19px; margin-top: 0; }
h3 { font-size: 16px; }

.card {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-radius: var(--r);
    padding: 20px;
    margin-bottom: 18px;
}
.card-narrow { max-width: 520px; margin-left: auto; margin-right: auto; }
.card-danger { border-color: #fca5a5; background: #fff5f5; }
.card-danger h2 { color: var(--c-err); }
.card-danger code {
    background: #fee2e2; padding: 2px 6px; border-radius: 4px; font-size: 13px;
}

.btn {
    display: inline-block;
    border: 1px solid var(--c-border);
    background: #fff;
    color: var(--c-text);
    padding: 8px 14px;
    border-radius: var(--r);
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { background: #f3f4f6; text-decoration: none; }
.btn-primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.btn-primary:hover { background: var(--c-primary-d); border-color: var(--c-primary-d); }
.btn-danger { background: var(--c-err); color: #fff; border-color: var(--c-err); }
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; }
.btn-mini { padding: 4px 10px; font-size: 13px; }
.btn-big { padding: 12px 22px; font-size: 16px; }

label {
    display: block;
    margin-bottom: 14px;
    font-size: 14px;
    font-weight: 500;
}
label.check { font-weight: normal; display: inline-flex; gap: 6px; align-items: center; }
label small { display: block; font-weight: normal; color: var(--c-muted); margin-top: 4px; }

input[type=text], input[type=email], input[type=password],
input[type=date], select, textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--c-border);
    border-radius: var(--r);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    margin-top: 4px;
}
input[type=file] {
    margin-top: 4px;
    padding: 8px;
    background: #fff;
    border: 1px dashed var(--c-border);
    border-radius: var(--r);
    width: 100%;
}
textarea { resize: vertical; min-height: 70px; }

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--c-primary);
    outline-offset: -1px;
}

.form-row {
    display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
}
.form-row > * { margin: 0; flex: 0 0 auto; }
.form-row input[type=text], .form-row input[type=email],
.form-row input[type=password], .form-row select { width: auto; min-width: 180px; }

.tbl {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
.tbl th, .tbl td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--c-border);
    vertical-align: middle;
}
.tbl th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}
.tbl tr.dim { color: var(--c-muted); }
.tbl tr.dim td:first-child { font-style: italic; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
}
.badge-nuovo { background: #ef4444; }
.badge-lav   { background: var(--c-warn); }
.badge-comp  { background: var(--c-ok); }
.badge-scar  { background: var(--c-muted); }

.flash {
    padding: 12px 16px;
    border-radius: var(--r);
    margin-bottom: 16px;
    border: 1px solid transparent;
}
.flash-ok   { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.flash-err  { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.flash-info { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }
.flash a { color: inherit; text-decoration: underline; }

.grid-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}
.stat {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-left: 4px solid var(--c-muted);
    border-radius: var(--r);
    padding: 16px 20px;
}
.stat-num { font-size: 28px; font-weight: 700; }
.stat-lbl { font-size: 13px; color: var(--c-muted); }
.stat-nuovo { border-left-color: #ef4444; }
.stat-lav   { border-left-color: var(--c-warn); }
.stat-comp  { border-left-color: var(--c-ok); }
.stat-cli   { border-left-color: var(--c-primary); }

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}

.dl { margin: 0; }
.dl dt { font-weight: 600; color: var(--c-muted); font-size: 13px; margin-top: 8px; }
.dl dd { margin: 2px 0 0; }

.note-box {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--r);
    padding: 10px 14px;
    color: #78350f;
    font-size: 14px;
}

.footer {
    text-align: center;
    color: var(--c-muted);
    padding: 20px;
    font-size: 12px;
}

@media (max-width: 700px) {
    .topbar { flex-wrap: wrap; }
    .topbar .mainnav { margin-left: 0; order: 3; width: 100%; }
    .form-row { flex-direction: column; align-items: stretch; }
    .form-row > * { width: 100%; }
    .form-row input[type=text], .form-row input[type=email],
    .form-row input[type=password], .form-row select { width: 100%; }
}

/* ─── Badge nel menu di navigazione ─── */
.nav-badge {
    display: inline-block;
    min-width: 18px;
    padding: 0 6px;
    margin-left: 4px;
    background: #ef4444;
    color: #fff;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
    vertical-align: middle;
}

/* ─── Avvisi (comunicazioni broadcast dell'admin) ─── */
.avviso {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    border-left: 4px solid var(--c-info);
    border-radius: var(--r);
    padding: 14px 18px;
    margin-bottom: 14px;
}
.avviso-importante {
    border-left-color: var(--c-warn);
    background: #fffbeb;
}
.avviso-letto {
    opacity: .72;
    border-left-color: var(--c-muted);
}
.avviso-head {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}
.avviso-head strong { font-size: 16px; }
.avviso-icon { font-size: 18px; }
.avviso-data { margin-left: auto; font-size: 12px; color: var(--c-muted); }
.avviso-testo { white-space: pre-wrap; word-wrap: break-word; margin-bottom: 10px; }
.avviso-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.avvisi-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 4px 12px;
}
.avvisi-checklist label.check { margin-bottom: 2px; }

/* ─── Chat ─── */
.chat-container {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    position: relative;
}
.chat-messages {
    height: 480px;
    overflow-y: auto;
    padding: 16px;
    background: #f9fafb;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.chat-empty {
    text-align: center;
    color: var(--c-muted);
    font-style: italic;
    padding: 40px 10px;
}
.chat-msg {
    display: flex;
    flex-direction: column;
    max-width: 78%;
}
.chat-msg-me    { align-self: flex-end;   align-items: flex-end; }
.chat-msg-other { align-self: flex-start; align-items: flex-start; }
.chat-meta {
    font-size: 11px;
    color: var(--c-muted);
    margin-bottom: 2px;
    padding: 0 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.chat-bubble {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 8px 12px;
    font-size: 14px;
    white-space: pre-wrap;
    word-wrap: break-word;
    line-height: 1.4;
    box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.chat-msg-me .chat-bubble {
    background: var(--c-primary);
    color: #fff;
    border-color: var(--c-primary);
}
.chat-del {
    background: transparent;
    border: 0;
    color: var(--c-muted);
    cursor: pointer;
    font-size: 12px;
    padding: 0 2px;
    line-height: 1;
}
.chat-del:hover { color: var(--c-err); }
.chat-form {
    display: flex;
    gap: 8px;
    padding: 12px;
    background: #fff;
    align-items: stretch;
}
.chat-form textarea {
    flex: 1;
    margin: 0;
    resize: none;
    font-family: inherit;
    font-size: 14px;
}
.chat-form .btn { white-space: nowrap; }
.chat-attach-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 14px;
    border: 1px solid var(--c-primary);
    border-radius: 8px;
    background: #fff;
    color: var(--c-primary);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    user-select: none;
    transition: background .15s ease, color .15s ease;
}
.chat-attach-btn:hover { background: var(--c-primary); color: #fff; }

/* Zona "trascina e rilascia" */
.chat-drop {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    display: none;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    background: rgba(37, 99, 235, .08);
    border: 3px dashed var(--c-primary);
    border-radius: 12px;
    color: var(--c-primary);
    font-size: 18px;
    font-weight: 600;
    z-index: 5;
    pointer-events: none;
}
.chat-container.drag-over .chat-drop { display: flex; }

/* Barra di avanzamento upload */
.chat-progress {
    display: none;
    height: 8px;
    margin: 0 12px 8px;
    background: #e5e7eb;
    border-radius: 999px;
    overflow: hidden;
}
.chat-progress.show { display: block; }
.chat-progress-bar {
    height: 100%;
    width: 0;
    background: var(--c-primary);
    transition: width .15s ease;
}
.chat-file-name {
    padding: 0 12px 4px;
    font-size: 12px;
    color: var(--c-muted);
}
.chat-file-name .x {
    cursor: pointer;
    color: var(--c-err);
    margin-left: 6px;
    font-weight: bold;
}
.chat-allegato {
    margin-top: 4px;
    padding: 6px 10px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    font-size: 13px;
    text-decoration: none;
    color: var(--c-primary);
    box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.chat-allegato:hover { text-decoration: underline; }
.chat-status {
    padding: 0 12px 8px;
    font-size: 12px;
    color: var(--c-warn);
    min-height: 16px;
}