/**
 * Layout Styles
 *
 * @package VERTEX
 */

/* Reset & Base */
* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	-webkit-text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	overflow-x: hidden;
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-primary);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	overflow-x: hidden;
	scroll-behavior: smooth;
	background-color: var(--color-brand-pearl-white);
}

/* Headings - Use Celvin Bold */
h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-secondary);
	font-weight: 700;
	line-height: var(--line-height-heading);
}

/* Container */
.container {
	width: 100%;
	max-width: var(--container-width);
	margin: 0 auto;
	padding: 0 var(--container-padding);
}

/* Site Structure */
.site {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.site-main {
	flex: 1;
}

/* Header */
.site-header {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	z-index: 100;
	background-color: transparent;
	border-bottom: none;
	transition: background-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-fast);
}

.site-header .container {
	position: relative;
	display: grid;
	grid-template-columns: auto 1fr auto;
	align-items: center;
	padding-top: var(--spacing-xs);
}

.site-header .site-branding {
	transition: opacity var(--transition-base), visibility var(--transition-base);
	position: relative;
}

.site-header.sticky {
	position: fixed;
}

.site-header.sticky .site-branding {
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
}

.header-custom-logo {
	transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base), position var(--transition-base);
}

.site-header.sticky .site-branding .site-logo-link {
	position: fixed;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	opacity: 1 !important;
	visibility: visible !important;
	pointer-events: auto !important;
	z-index: 101;
}

.site-header.sticky .header-custom-logo {
	position: static;
	height: 44px;
	width: auto;
	display: block;
}


/* Sections */
.section {
	padding: var(--spacing-md) 0;
}

.section-title {
	font-family: var(--font-secondary);
	font-size: var(--font-size-h2);
	font-weight: 700;
	line-height: var(--line-height-heading);
	margin-bottom: var(--spacing-md);
	text-align: center;
}

/* Skip Link */
.skip-link {
	position: absolute;
	left: -9999px;
	z-index: 999999;
}

.skip-link:focus {
	left: 6px;
	top: 7px;
	display: block;
	padding: 8px 16px;
	background: var(--color-primary);
	color: var(--color-secondary);
	text-decoration: none;
}

/* Screen Reader Text */
.screen-reader-text {
	clip: rect(1px, 1px, 1px, 1px);
	position: absolute !important;
	height: 1px;
	width: 1px;
	overflow: hidden;
	word-wrap: normal !important;
}

.screen-reader-text:focus {
	background-color: var(--color-background);
	border-radius: var(--radius-sm);
	box-shadow: var(--shadow-md);
	clip: auto !important;
	display: block;
	font-size: var(--font-size-base);
	height: auto;
	left: 5px;
	line-height: normal;
	padding: 15px 23px 14px;
	text-decoration: none;
	top: 5px;
	width: auto;
	z-index: 100000;
}

/* Responsive */
@media (max-width: 768px) {
	:root {
		--font-size-h1: 2rem;
		--font-size-h2: 1.75rem;
		--font-size-h3: 1.5rem;
		--spacing-xl: 3rem;
		--spacing-xxl: 4rem;
	}

	.section {
		padding: var(--spacing-sm) 0;
	}
}

@media (max-width: 968px) {
	/* Header is always sticky on mobile */
	.site-header {
		position: fixed;
		top: 0;
		left: 0;
		width: 100%;
		z-index: 100;
	}

	.site-header.sticky .header-custom-logo {
		display: none;
	}
}