body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    color: #2b2d42;
    background-color: #fbfbfb;
}

h1, h2, h3, h4, h5, h6, .brand-title {
    font-family: 'Quicksand', 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -0.3px;
}

.pediatric-topbar {
    background-color: #0b5ed7;
}

.transition {
    transition: all 0.25s ease-in-out;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08) !important;
}

:root[data-theme="pastel-warm"] {
    --pediatric-primary: #ff9f1c;
    --pediatric-dark: #e07a00;
    --pediatric-soft: #fff3e3;
    --pediatric-accent: #2ec4b6;
    --pediatric-accent-dark: #1b9aaa;
    --primary-color: #ff9f1c;
}

:root[data-theme="gentle-mint"] {
    --pediatric-primary: #2ec4b6;
    --pediatric-dark: #1f9488;
    --pediatric-soft: #e8f9f7;
    --pediatric-accent: #ff9f1c;
    --pediatric-accent-dark: #e07a00;
    --primary-color: #2ec4b6;
}

:root[data-theme="pediatric-sky"] {
    --pediatric-primary: #0077b6;
    --pediatric-dark: #023e8a;
    --pediatric-soft: #edf8fd;
    --pediatric-accent: #ffb703;
    --pediatric-accent-dark: #fb8500;
    --primary-color: #0077b6;
}

/* ===== Tương phản WCAG AA (>= 4,5:1) - đậm hơn cùng tông, theo Doc/NGUYEN-TAC-THIET-KE-VA-PHOI-MAU.md (2026-10-13) ===== */
.text-primary { color: #084298 !important; }
.text-danger { color: #a52834 !important; }
.text-success { color: #146c43 !important; }
.text-warning-emphasis { color: #664d03 !important; }
.text-muted, .text-secondary { color: #565e66 !important; }
.badge.bg-primary-subtle, .bg-primary-subtle { color: #084298 !important; }
.badge.bg-danger-subtle, .bg-danger-subtle { color: #842029 !important; }
.badge.bg-light { color: #495057 !important; }
.badge.bg-warning-subtle { color: #664d03 !important; }
footer .text-light-emphasis, footer.text-light-emphasis, .bg-dark .text-light-emphasis { color: #cbd5e1 !important; }
.pediatric-topbar .pts-light, .pediatric-topbar .pts { color: rgba(255, 255, 255, .92); }
.pediatric-topbar .pts a { opacity: 1; color: #fff; }
.pediatric-topbar .pts a[aria-current=true] { background: rgba(255, 255, 255, .22); color: #fff; }
footer .text-secondary, footer .text-muted, footer.bg-dark .text-secondary, footer.bg-dark .text-muted, .bg-dark .text-secondary, .bg-dark .text-muted { color: #cbd5e1 !important; }
.btn-outline-danger { --bs-btn-color: #a52834; --bs-btn-border-color: #a52834; --bs-btn-hover-bg: #a52834; --bs-btn-hover-border-color: #a52834; --bs-btn-hover-color: #fff; }
.btn-outline-primary { --bs-btn-color: #084298; --bs-btn-border-color: #084298; --bs-btn-hover-bg: #084298; --bs-btn-hover-border-color: #084298; --bs-btn-hover-color: #fff; }
.badge.bg-warning, a.badge.bg-warning { color: #212529 !important; }
.pediatric-topbar .pts a[aria-current=true] { background: rgba(0, 0, 0, .28); }
.pediatric-topbar .text-warning { color: #ffe69c !important; }