@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --brand-start: #6366f1;
    --brand-end: #a855f7;
    --sidebar-bg: #fbfaff;
    --surface: #ffffff;
    --surface-muted: #f6f7fb;
    --border-soft: #eceef4;
    --text-soft: #64748b;
    --text-strong: #1e293b;
    --radius-lg: 1rem;
    --radius-md: 0.75rem;
    --shadow-soft: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px -12px rgba(15, 23, 42, 0.12);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--surface-muted);
    color: var(--text-strong);
}

/* ---------- Sidebar (paleta clara) ---------- */
.sidebar {
    background: var(--sidebar-bg) !important;
    border-right: 1px solid var(--border-soft);
}

.sidebar h5 {
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-strong);
}

.sidebar h5 i {
    background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar .nav-link {
    border-radius: 0.6rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-soft) !important;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar .nav-link:hover {
    background-color: #eef0fb;
    color: var(--text-strong) !important;
}

.sidebar .nav-link.active {
    background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
    color: #fff !important;
    box-shadow: 0 4px 14px -4px rgba(99, 102, 241, 0.45);
}

.sidebar hr {
    border-color: var(--border-soft) !important;
    opacity: 1;
}

.sidebar .text-white-50 {
    color: #94a3b8 !important;
}

/* ---------- Cards ---------- */
.card {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.card-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border-soft);
    font-weight: 600;
    border-top-left-radius: var(--radius-lg) !important;
    border-top-right-radius: var(--radius-lg) !important;
}

/* KPI cards on the dashboard: colored accent bar on the left */
.row.g-3 > div > .card[class*="border-"] {
    border-width: 1px !important;
    border-left-width: 4px !important;
    border-radius: var(--radius-md);
}

/* ---------- Buttons ---------- */
.btn-primary {
    background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
    border: none;
    font-weight: 600;
    border-radius: 0.6rem;
    box-shadow: 0 4px 14px -4px rgba(99, 102, 241, 0.5);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(90deg, #4f46e5, #9333ea);
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-danger {
    border-radius: 0.6rem;
    font-weight: 500;
}

/* ---------- Tables ---------- */
.table thead {
    background: var(--surface-muted);
}

.table thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-soft);
    font-weight: 700;
    border-bottom-width: 1px;
}

.table-hover tbody tr:hover {
    background-color: #f5f3ff;
}

/* ---------- Badges ---------- */
.badge {
    font-weight: 600;
    border-radius: 0.4rem;
    letter-spacing: 0.01em;
}

.badge-prioridad-critica { background-color: #ef4444; color: #fff; }
.badge-prioridad-alta { background-color: #f97316; color: #fff; }
.badge-prioridad-media { background-color: #f59e0b; color: #1e1b0d; }
.badge-prioridad-baja { background-color: #94a3b8; color: #fff; }

/* ---------- Mapa de conocimiento 3D ---------- */
.graph-canvas {
    width: 100%;
    height: 72vh;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-soft);
}

.graph-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    font-size: 0.85rem;
    color: var(--text-soft);
}

.graph-legend .legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.graph-legend .legend-item i {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

/* ---------- Chat de soporte ---------- */
.chat-mensajes {
    height: 55vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    background: var(--surface-muted);
}

.chat-burbuja {
    max-width: 75%;
    padding: 0.6rem 0.9rem;
    border-radius: 1rem;
    line-height: 1.4;
    font-size: 0.92rem;
}

.chat-burbuja.chat-usuario {
    align-self: flex-end;
    background: linear-gradient(90deg, var(--brand-start), var(--brand-end));
    color: #fff;
    border-bottom-right-radius: 0.3rem;
}

.chat-burbuja.chat-asistente {
    align-self: flex-start;
    background: #fff;
    border: 1px solid var(--border-soft);
    color: var(--text-strong);
    border-bottom-left-radius: 0.3rem;
}

.chat-ticket-link {
    display: inline-block;
    margin-top: 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    color: inherit;
    opacity: 0.85;
    border-bottom: 1px dashed currentColor;
}