/* =========================================================
   FENGYUAN DISPLAY — base.css
   Design tokens, reset and typography.
   ========================================================= */

:root {
	--color-primary: #E87722;
	--color-primary-hover: #CF6517;
	--color-primary-soft: #FBEFE4;

	--color-dark: #0F0F0F;
	--color-dark-2: #1A1A1A;

	--color-text: #222222;
	--color-muted: #6B6B6B;
	--color-soft-text: #8A8A8A;

	--color-border: #E5E5E5;
	--color-border-strong: #D4D4D4;
	--color-panel: #F6F6F6;
	--color-panel-2: #FAFAFA;
	--color-white: #FFFFFF;

	--font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;

	--radius-sm: 4px;
	--radius: 6px;
	--radius-lg: 10px;

	--shadow-sm: 0 1px 2px rgba(15, 15, 15, 0.04);
	--shadow-md: 0 4px 18px rgba(15, 15, 15, 0.08);
	--shadow-lg: 0 18px 40px rgba(15, 15, 15, 0.12);

	--container: 1240px;
	--container-wide: 1360px;

	--header-height: 76px;

	--ease: cubic-bezier(.2, .7, .2, 1);
	--dur-fast: .18s;
	--dur: .28s;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: var(--font-sans);
	font-size: 16px;
	line-height: 1.6;
	color: var(--color-text);
	background: var(--color-white);
}

img, svg, video {
	display: block;
	max-width: 100%;
	height: auto;
}

a {
	color: inherit;
	text-decoration: none;
	transition: color var(--dur-fast) var(--ease);
}

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

h1, h2, h3, h4, h5, h6 {
	margin: 0 0 .5em;
	font-weight: 700;
	line-height: 1.2;
	color: var(--color-dark);
}

h1 { font-size: 48px; letter-spacing: -0.01em; }
h2 { font-size: 30px; letter-spacing: .02em; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 15px; letter-spacing: .08em; text-transform: uppercase; }

p { margin: 0 0 1em; }

ul, ol { padding: 0; margin: 0; list-style: none; }

button {
	font: inherit;
	color: inherit;
	background: transparent;
	border: 0;
	cursor: pointer;
}

input, select, textarea {
	font: inherit;
	color: inherit;
}

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0 0 0 0);
	white-space: nowrap; border: 0;
}

.skip-link {
	position: absolute; left: -9999px; top: 0;
	background: var(--color-dark); color: var(--color-white);
	padding: .75rem 1.25rem; z-index: 100;
	font-size: 14px;
	font-weight: 600;
	border-radius: 0 0 var(--radius) 0;
	box-shadow: var(--shadow-md);
}
.skip-link:focus,
.skip-link:focus-visible { left: 0; outline: 0; }

/* =========================================================
   Accessibility — focus-visible rings.
   Shown only when a user is navigating with keyboard,
   never on mouse clicks (browser default for :focus-visible).
   ========================================================= */

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

.btn:focus-visible {
	outline-offset: 3px;
}

.product-card:focus-within,
.category-card:focus-visible,
.project-card:focus-visible,
.collection-card:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 3px;
}

/* Native checkbox/radio inside custom filter rows. */
.filter-check input:focus-visible + .filter-check__box {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

/* Tab buttons — show focus ring slightly inside so it doesn't overlap the border line. */
.product-tabs__tab:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: -2px;
	border-radius: var(--radius-sm);
}

/* =========================================================
   Reduced motion — respect user preference.
   Disables transitions, animations and large transforms so
   people with vestibular sensitivity get a calm experience.
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
	*,
	*::before,
	*::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
		scroll-behavior: auto !important;
	}
	.contact-map__pin::after { animation: none !important; }
	.category-card:hover,
	.project-card:hover,
	.product-card:hover,
	.capability-card:hover,
	.contact-card:hover,
	.trust-bar__item:hover,
	.cta-banner:hover,
	.btn:hover { transform: none !important; }
}