/**
 * Prime Academic Press — force layer v10.
 * 1) Lock symmetric left/right padding.
 * 2) Apply Apple-like frosted content cards to non-index pages.
 */

:root {
	--pap-symmetric-pad: clamp(14px, 2.2vw, 28px);
}

/* ───────── 1) Symmetric padding lock (header + content) ───────── */
header#headerNavigationContainer.pap-masthead .container.pap-header-inner,
.pkp_structure_content.container.pap_content_layout,
.pkp_structure_content.container.pap-site-main-fluid {
	padding-left: var(--pap-symmetric-pad) !important;
	padding-right: var(--pap-symmetric-pad) !important;
	box-sizing: border-box !important;
}

/* Keep nav truly centered inside equal paddings */
header#headerNavigationContainer.pap-masthead .pap-header-nav-strip .pap-header-inner {
	display: flex !important;
	justify-content: center !important;
}

header#headerNavigationContainer.pap-masthead .pap-nav-menu-inner {
	width: 100% !important;
	display: flex !important;
	justify-content: center !important;
	padding-left: 0 !important;
	padding-right: 0 !important;
}

/* ───────── 2) Apple-style frosted cards for non-index page content ───────── */
body:not(.pap-site-index) .pkp_structure_content.container.pap_content_layout,
body:not(.pap-site-index) .pkp_structure_content.container {
	background:
		radial-gradient(1200px 460px at 50% -140px, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0) 60%),
		linear-gradient(180deg, #edf1f6 0%, #f5f7fa 42%, #f1f4f8 100%) !important;
}

body:not(.pap-site-index) .pkp_structure_main > .page {
	background: rgba(255, 255, 255, 0.74) !important;
	backdrop-filter: blur(10px) saturate(140%) !important;
	-webkit-backdrop-filter: blur(10px) saturate(140%) !important;
	border: 1px solid rgba(255, 255, 255, 0.92) !important;
	border-radius: 20px !important;
	box-shadow:
		0 1px 0 rgba(255, 255, 255, 0.9) inset,
		0 14px 36px rgba(16, 24, 40, 0.08) !important;
	padding: clamp(14px, 2vw, 26px) !important;
	margin-bottom: 18px !important;
}

/* Improve typography rhythm inside frosted cards */
body:not(.pap-site-index) .pkp_structure_main > .page h1,
body:not(.pap-site-index) .pkp_structure_main > .page h2,
body:not(.pap-site-index) .pkp_structure_main > .page h3,
body:not(.pap-site-index) .pkp_structure_main > .page h4 {
	font-family: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif !important;
	letter-spacing: -0.01em !important;
}

body:not(.pap-site-index) .pkp_structure_main > .page p,
body:not(.pap-site-index) .pkp_structure_main > .page li {
	line-height: 1.72 !important;
}