/**
 * Theme Layout Stylesheet
 * Contains layouts, accessible utilities, sticky header, back-to-top button,
 * scroll progress bar, and card/glassmorphism design styles.
 *
 * @package HealthcareRecruitEnterprise
 */

/* Core Typography & Base Defaults */
body {
	font-family: var(--font-family-sans);
	background-color: var(--bg-color);
	color: var(--text-color);
	margin: 0;
	padding: 0;
	line-height: 1.6;
	overflow-x: hidden;
}

/* Accessibility: Skip Links & High Contrast Focus */
.skip-link {
	position: absolute;
	top: -100px;
	left: 20px;
	background: var(--primary-color);
	color: #000;
	padding: 10px 20px;
	z-index: 99999;
	font-weight: 600;
	transition: top var(--transition-speed);
	border-radius: 4px;
}

.skip-link:focus {
	top: 20px;
	outline: 3px solid var(--accent-color);
}

/* Keyboard Accessibility Focus Rings */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
	outline: 2px solid var(--accent-color);
	outline-offset: 4px;
}

/* Screen Reader Text Helper */
.screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	word-wrap: normal !important;
}

/* Layout Utilities */
.container {
	width: 90%;
	max-width: var(--container-width);
	margin: 0 auto;
	padding: 0 15px;
}

.grid {
	display: grid;
	gap: 30px;
}

@media (min-width: 768px) {
	.grid-2 { grid-template-columns: repeat(2, 1fr); }
	.grid-3 { grid-template-columns: repeat(3, 1fr); }
	.grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Sticky Header & Progress Bar */
.site-header {
	position: sticky;
	top: 0;
	background-color: rgba(11, 18, 33, 0.85);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border-bottom: 1px solid rgba(255, 255, 255, 0.05);
	z-index: 1000;
	transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.site-header.scrolled {
	background-color: rgba(6, 11, 20, 0.95);
	border-bottom-color: var(--primary-color);
}

/* Scroll progress bar */
#reading-progress {
	position: fixed;
	top: 0;
	left: 0;
	height: 4px;
	background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
	width: 0%;
	z-index: 10000;
	transition: width 0.1s ease-out;
}

/* Interactive Navigation Menu Styles */
.navbar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 80px;
}

.nav-menu {
	display: none;
	list-style: none;
	gap: 25px;
	margin: 0;
	padding: 0;
}

@media (min-width: 1024px) {
	.nav-menu {
		display: flex;
	}
}

.nav-menu a {
	color: rgba(248, 250, 252, 0.85);
	text-decoration: none;
	font-weight: 500;
	font-size: 15px;
	transition: color var(--transition-speed);
	padding: 8px 0;
	position: relative;
}

.nav-menu a:hover,
.nav-menu .current-menu-item > a {
	color: var(--primary-color);
}

.nav-menu a::after {
	content: '';
	position: absolute;
	width: 0;
	height: 2px;
	bottom: 0;
	left: 0;
	background-color: var(--primary-color);
	transition: width var(--transition-speed) ease;
}

.nav-menu a:hover::after,
.nav-menu .current-menu-item > a::after {
	width: 100%;
}

/* Mobile Menu Trigger Drawer */
.menu-toggle {
	display: block;
	background: none;
	border: none;
	color: var(--text-color);
	font-size: 24px;
	cursor: pointer;
	padding: 8px;
}

@media (min-width: 1024px) {
	.menu-toggle {
		display: none;
	}
}

/* Back To Top Button */
#back-to-top {
	position: fixed;
	bottom: -60px;
	right: 30px;
	background-color: var(--primary-color);
	color: #0b1221;
	width: 45px;
	height: 45px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	border: none;
	cursor: pointer;
	opacity: 0;
	z-index: 999;
	transition: bottom var(--transition-speed) ease, opacity var(--transition-speed) ease, transform 0.2s;
	box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
}

#back-to-top.visible {
	bottom: 30px;
	opacity: 1;
}

#back-to-top:hover {
	transform: translateY(-5px);
	background-color: var(--secondary-color);
}

/* Premium Card Layouts / Glassmorphism */
.healthcare-card {
	background: rgba(15, 23, 42, 0.55);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	border: 1px solid rgba(255, 255, 255, 0.05);
	border-radius: var(--border-radius);
	padding: 24px;
	transition: transform var(--transition-speed) cubic-bezier(0.16, 1, 0.3, 1), border-color var(--transition-speed), box-shadow var(--transition-speed);
	position: relative;
	overflow: hidden;
}

.healthcare-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 3px;
	background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
	opacity: 0;
	transition: opacity var(--transition-speed);
}

.healthcare-card:hover {
	transform: translateY(-6px);
	border-color: rgba(6, 182, 212, 0.3);
	box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.healthcare-card:hover::before {
	opacity: 1;
}

/* Footer Section Grid */
.site-footer {
	background-color: #060b14;
	border-top: 1px solid rgba(255, 255, 255, 0.05);
	padding: 80px 0 40px 0;
	color: #94a3b8;
}

.site-footer a {
	color: #94a3b8;
	text-decoration: none;
	transition: color var(--transition-speed);
}

.site-footer a:hover {
	color: var(--primary-color);
}