:root {
    --sb-primary: #0d6efd;
    --sb-dark: #111827;
    --sb-muted: #6b7280;
    --sb-bg: #f8fafc;
}
body {
    background: var(--sb-bg);
    color: #111827;
}
.hero {
    background: linear-gradient(135deg, #0b1220 0%, #16233e 100%);
    color: #fff;
    border-radius: 1.5rem;
}
.card-soft {
    border: 0;
    border-radius: 1.25rem;
    box-shadow: 0 10px 35px rgba(15, 23, 42, 0.08);
}
.section-title {
    font-size: 1.85rem;
    font-weight: 700;
}
.provider-cover {
    background: linear-gradient(120deg, #dbeafe, #eff6ff);
    border-radius: 1.25rem;
    min-height: 180px;
}
.avatar-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    background: #e2e8f0;
}
.dashboard-stat {
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 10px 25px rgba(0,0,0,.05);
}
.message-box {
    max-height: 420px;
    overflow-y: auto;
}
.message-bubble {
    border-radius: 1rem;
    padding: .75rem 1rem;
    max-width: 85%;
}
.message-self { background: #dbeafe; margin-left: auto; }
.message-other { background: #f1f5f9; }
.table thead th { white-space: nowrap; }