/* SecureNet Cloud - Dashboard di Analisi Incidenti
   Sistema grafico: sobrio, leggibile, un solo colore d'accento. */

:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --surface-alt: #fafbfc;
    --border: #e4e7ec;
    --border-strong: #d3d8e0;
    --text: #1a1d24;
    --text-muted: #6b7280;
    --text-faint: #9aa1ac;
    --accent: #34456b;
    --accent-soft: #eef0f5;
    --critico: #b3261e;
    --alto: #b5650a;
    --medio: #8a6d04;
    --basso: #1e6b3a;
    --radius: 6px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Segoe UI", -apple-system, Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; }

/* ---------- Login ---------- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}
.login-card {
    background: var(--surface);
    padding: 48px 44px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 360px;
}
.login-card h1 {
    margin: 0 0 6px;
    font-size: 19px;
    text-align: center;
}
.subtitle {
    color: var(--text-muted);
    margin: 0 0 32px;
    font-size: 13px;
    text-align: center;
}
.login-card form { display: flex; flex-direction: column; gap: 16px; }
.login-card label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.login-card input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text);
    font-size: 14px;
}
.login-card input:focus {
    outline: none;
    border-color: var(--accent);
}
.login-card button {
    padding: 11px;
    border: none;
    border-radius: 4px;
    background: var(--accent);
    color: white;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
}
.login-card button:hover { background: #2a3757; }
.alert {
    padding: 10px 12px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 13px;
}
.alert-error {
    background: #fbeae9;
    border: 1px solid var(--critico);
    color: var(--critico);
}

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 210px;
    height: 100vh;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-brand {
    font-size: 15px;
    font-weight: 700;
    padding: 24px 24px 20px;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand span { color: var(--text-muted); font-weight: 400; }
.sidebar-nav {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 16px 12px;
}
.sidebar-nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 9px 12px;
    font-size: 13px;
    border-radius: 4px;
    margin-bottom: 2px;
}
.sidebar-nav a:hover { color: var(--text); background: var(--surface-alt); }
.sidebar-nav a.active {
    color: var(--accent);
    background: var(--accent-soft);
    font-weight: 600;
}
.logout-link {
    color: var(--text-muted);
    text-decoration: none;
    padding: 16px 24px;
    font-size: 13px;
    border-top: 1px solid var(--border);
}
.logout-link:hover { color: var(--critico); }

.main-content { flex: 1; margin-left: 210px; padding: 32px 40px; overflow-x: hidden; }
.topbar { margin-bottom: 28px; }
.topbar h1 { margin: 0 0 4px; font-size: 20px; }
.topbar-sub { margin: 0; color: var(--text-muted); font-size: 13px; }

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}
.panel h2 {
    margin: 0 0 18px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

/* ---------- Stats / chart ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--surface);
    padding: 18px 20px;
}
.stat-value { display: block; font-size: 28px; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; display: block; }
.stat-blocked .stat-value { color: var(--basso); }
.stat-detected .stat-value { color: var(--alto); }

.chart-wrap h3 {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0 0 10px;
    font-weight: 600;
}
.bar-chart {
    display: flex;
    width: 100%;
    height: 26px;
    border-radius: 4px;
    overflow: hidden;
    background: var(--surface-alt);
    border: 1px solid var(--border);
}
.bar-chart-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: white;
    white-space: nowrap;
    overflow: hidden;
}
.bar-blocked { background: var(--basso); }
.bar-detected { background: var(--alto); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; }
.incidents-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 700px; }
.incidents-table th {
    text-align: left;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-strong);
}
.incidents-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}
.incidents-table tbody tr:last-child td { border-bottom: none; }
.incidents-table tbody tr:hover { background: var(--surface-alt); }

.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    color: white;
}
.badge-critico { background: var(--critico); }
.badge-alto { background: var(--alto); }
.badge-medio { background: var(--medio); }
.badge-basso { background: var(--basso); }

.btn-select-incident {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    color: var(--text);
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}
.btn-select-incident:hover { border-color: var(--accent); color: var(--accent); }

/* Logica colore: gli incidenti Critici hanno un bordo rosso marcato e lampeggiano lentamente */
tr.danger-critico {
    box-shadow: inset 3px 0 0 var(--critico);
    animation: blink-critico 2.2s infinite;
}
@keyframes blink-critico {
    0%, 100% { background-color: transparent; }
    50% { background-color: #fbeae9; }
}
tr.danger-alto { box-shadow: inset 3px 0 0 var(--alto); }
tr.danger-medio { box-shadow: inset 3px 0 0 var(--medio); }
tr.danger-basso { box-shadow: inset 3px 0 0 var(--basso); }

/* ---------- AI Consultant ---------- */
.ai-advice-box {
    background: var(--surface-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 16px;
    font-size: 13px;
    min-height: 40px;
}
.ai-placeholder { color: var(--text-muted); margin: 0; }
.ai-advice-title {
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
    font-size: 14px;
}
.ai-advice-meta { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }

.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 9px 18px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
}
.btn-primary:hover { background: #2a3757; }
.btn-primary:disabled { background: var(--border-strong); color: var(--text-faint); cursor: not-allowed; }

/* ---------- Ask AI form ---------- */
#ask-ai-form { display: flex; flex-direction: column; gap: 12px; max-width: 480px; }
#ask-ai-form label { font-size: 12px; color: var(--text-muted); }
#ask-ai-form input, #ask-ai-form textarea {
    padding: 10px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text);
    font-family: inherit;
    font-size: 13px;
    resize: vertical;
}
#ask-ai-form input:focus, #ask-ai-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .layout { flex-direction: column; }
    .sidebar {
        position: static;
        width: 100%;
        height: auto;
        flex-direction: row;
        align-items: center;
        padding: 0 12px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .sidebar-brand { padding: 14px 16px; border-bottom: none; white-space: nowrap; }
    .sidebar-nav { flex-direction: row; padding: 8px; overflow-x: auto; }
    .sidebar-nav a { white-space: nowrap; }
    .logout-link { border-top: none; white-space: nowrap; }
    .main-content { margin-left: 0; padding: 20px; }
    .stats-grid { grid-template-columns: 1fr; }
}