/**
 * TechWorld design system.
 *
 * Reusable visual tokens and foundational components for the theme.
 */

:root {
	--techworld-color-primary-50: #eff6ff;
	--techworld-color-primary-100: #dbeafe;
	--techworld-color-primary-500: #2563eb;
	--techworld-color-primary-600: #1d4ed8;
	--techworld-color-primary-700: #1e40af;
	--techworld-color-secondary-900: #0f172a;
	--techworld-color-secondary-800: #1e293b;
	--techworld-color-secondary-700: #334155;
	--techworld-color-accent-400: #f59e0b;
	--techworld-color-accent-500: #d97706;
	--techworld-color-white: #ffffff;
	--techworld-color-surface: #f8fafc;
	--techworld-color-surface-alt: #f1f5f9;
	--techworld-color-text: #0f172a;
	--techworld-color-text-muted: #64748b;
	--techworld-color-border: #e2e8f0;
	--techworld-color-success: #15803d;
	--techworld-color-danger: #b91c1c;
	--techworld-color-focus: #2563eb;

	--techworld-font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	--techworld-font-heading: "Manrope", Inter, ui-sans-serif, system-ui, sans-serif;
	--techworld-font-size-xs: 0.75rem;
	--techworld-font-size-sm: 0.875rem;
	--techworld-font-size-base: 1rem;
	--techworld-font-size-lg: 1.125rem;
	--techworld-font-size-xl: 1.25rem;
	--techworld-font-size-2xl: 1.5rem;
	--techworld-font-size-3xl: clamp(1.875rem, 4vw, 2.5rem);
	--techworld-font-size-4xl: clamp(2.25rem, 5vw, 3.5rem);
	--techworld-line-height-tight: 1.15;
	--techworld-line-height-heading: 1.25;
	--techworld-line-height-body: 1.7;

	--techworld-space-1: 0.25rem;
	--techworld-space-2: 0.5rem;
	--techworld-space-3: 0.75rem;
	--techworld-space-4: 1rem;
	--techworld-space-5: 1.25rem;
	--techworld-space-6: 1.5rem;
	--techworld-space-8: 2rem;
	--techworld-space-10: 2.5rem;
	--techworld-space-12: 3rem;
	--techworld-space-16: 4rem;
	--techworld-space-20: 5rem;
	--techworld-space-24: 6rem;

	--techworld-container-sm: 720px;
	--techworld-container-md: 960px;
	--techworld-container-lg: 1140px;
	--techworld-container-xl: 1440px;
	--techworld-gutter: clamp(1.25rem, 4vw, 4.5rem);

	--techworld-radius-sm: 0.5rem;
	--techworld-radius-md: 0.875rem;
	--techworld-radius-lg: 1.25rem;
	--techworld-radius-pill: 999px;
	--techworld-shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.06);
	--techworld-shadow-md: 0 18px 50px rgba(15, 23, 42, 0.1);
	--techworld-shadow-lg: 0 28px 80px rgba(15, 23, 42, 0.14);
	--techworld-transition: 180ms ease;
}

html {
	font-size: 100%;
}

body {
	background: var(--techworld-color-white);
	color: var(--techworld-color-text);
	font-family: var(--techworld-font-body);
	font-size: var(--techworld-font-size-base);
	line-height: var(--techworld-line-height-body);
}

h1,
h2,
h3,
h4,
h5,
h6 {
	margin-block: 0 0.6em;
	color: var(--techworld-color-secondary-900);
	font-family: var(--techworld-font-heading);
	font-weight: 750;
	letter-spacing: -0.025em;
	line-height: var(--techworld-line-height-heading);
}

h1 { font-size: var(--techworld-font-size-4xl); }
h2 { font-size: var(--techworld-font-size-3xl); }
h3 { font-size: var(--techworld-font-size-2xl); }
h4 { font-size: var(--techworld-font-size-xl); }
h5 { font-size: var(--techworld-font-size-lg); }
h6 { font-size: var(--techworld-font-size-base); }

p {
	margin-block: 0 1.25em;
}

.techworld-container,
.techworld-container--wide,
.techworld-container--narrow {
	width: 100%;
	max-width: calc(var(--techworld-container-xl) + (var(--techworld-gutter) * 2));
	padding-inline: var(--techworld-gutter);
	margin-inline: auto;
	box-sizing: border-box;
}

.techworld-container--wide {
	max-width: 1440px;
}

.techworld-container--narrow {
	max-width: 820px;
}

.techworld-section {
	padding-block: clamp(3.5rem, 8vw, 7rem);
}

.techworld-section--compact {
	padding-block: clamp(2.5rem, 5vw, 4.5rem);
}

.techworld-section--surface {
	background: var(--techworld-color-surface);
}

.techworld-stack > * + * {
	margin-block-start: var(--techworld-space-6);
}

.techworld-grid {
	display: grid;
	gap: clamp(1.25rem, 3vw, 2rem);
}

.techworld-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.techworld-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.techworld-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.techworld-button,
button.techworld-button,
input[type="submit"].techworld-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	padding: 0.75rem 1.35rem;
	border: 1px solid transparent;
	border-radius: var(--techworld-radius-pill);
	background: var(--techworld-color-primary-600);
	color: var(--techworld-color-white);
	font-weight: 700;
	line-height: 1.2;
	text-align: center;
	text-decoration: none;
	transition: transform var(--techworld-transition), box-shadow var(--techworld-transition), background-color var(--techworld-transition);
}

.techworld-button:hover,
.techworld-button:focus-visible {
	background: var(--techworld-color-primary-700);
	color: var(--techworld-color-white);
	box-shadow: var(--techworld-shadow-sm);
	transform: translateY(-2px);
}

.techworld-button--secondary {
	background: var(--techworld-color-secondary-900);
}

.techworld-button--outline {
	border-color: var(--techworld-color-border);
	background: transparent;
	color: var(--techworld-color-secondary-900);
}

.techworld-button--outline:hover,
.techworld-button--outline:focus-visible {
	border-color: var(--techworld-color-primary-600);
	background: var(--techworld-color-primary-50);
	color: var(--techworld-color-primary-700);
}

.techworld-card {
	padding: clamp(1.25rem, 3vw, 2rem);
	border: 1px solid var(--techworld-color-border);
	border-radius: var(--techworld-radius-lg);
	background: var(--techworld-color-white);
	box-shadow: var(--techworld-shadow-sm);
	transition: transform var(--techworld-transition), box-shadow var(--techworld-transition), border-color var(--techworld-transition);
}

.techworld-card:hover {
	border-color: var(--techworld-color-primary-100);
	box-shadow: var(--techworld-shadow-md);
	transform: translateY(-4px);
}

label {
	display: inline-block;
	margin-block-end: var(--techworld-space-2);
	color: var(--techworld-color-secondary-800);
	font-weight: 700;
}

input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]),
select,
textarea {
	width: 100%;
	min-height: 48px;
	padding: 0.75rem 0.9rem;
	border: 1px solid var(--techworld-color-border);
	border-radius: var(--techworld-radius-sm);
	background: var(--techworld-color-white);
	color: var(--techworld-color-text);
	transition: border-color var(--techworld-transition), box-shadow var(--techworld-transition);
}

textarea {
	min-height: 140px;
	resize: vertical;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
a:focus-visible {
	outline: 3px solid color-mix(in srgb, var(--techworld-color-focus) 35%, transparent);
	outline-offset: 3px;
}

.techworld-eyebrow {
	display: inline-flex;
	align-items: center;
	gap: var(--techworld-space-2);
	margin-block-end: var(--techworld-space-4);
	color: var(--techworld-color-primary-700);
	font-size: var(--techworld-font-size-sm);
	font-weight: 800;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.techworld-lead {
	max-width: 68ch;
	color: var(--techworld-color-text-muted);
	font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.techworld-surface-dark {
	background: var(--techworld-color-secondary-900);
	color: rgba(255, 255, 255, 0.78);
}

.techworld-surface-dark h1,
.techworld-surface-dark h2,
.techworld-surface-dark h3,
.techworld-surface-dark h4,
.techworld-surface-dark h5,
.techworld-surface-dark h6 {
	color: var(--techworld-color-white);
}

@media (max-width: 991px) {
	.techworld-grid--4,
	.techworld-grid--3 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 767px) {
	:root {
		--techworld-gutter: 1rem;
	}

	.techworld-grid--2,
	.techworld-grid--3,
	.techworld-grid--4 {
		grid-template-columns: minmax(0, 1fr);
	}

	.techworld-button {
		min-height: 46px;
	}
}

@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}

	*,
	*::before,
	*::after {
		scroll-behavior: auto !important;
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
	}
}