:root {
	--color-bg: #f7f6f2;
	--color-surface: #ffffff;
	--color-text: #14141a;
	--color-text-muted: #67676f;
	--color-primary: #22d3ee;
	--color-primary-hover: #06b6d4;
	--color-primary-ink: #062a30;
	--color-secondary: #2563eb;
	--color-accent: #8b5cf6;
	--color-border: #e3e1da;
	--color-card-bg: #efeee9;
	--color-danger: #dc2626;
	--color-danger-ink: #b91c1c;
	--color-success: #16a34a;
	--color-success-ink: #0e6b31;
	--color-warning: #d97706;
	--color-warning-ink: #92400e;
	--max-width: 1240px;
	--content-width: 760px;
	--header-height: 76px;
	--radius-sm: 6px;
	--radius-md: 10px;
	--radius-lg: 16px;
	--radius-pill: 999px;
	--shadow-sm: 0 1px 2px rgb(20 20 26 / 6%);
	--shadow-md: 0 10px 30px rgb(20 20 26 / 10%);
	--shadow-lg: 0 24px 60px rgb(20 20 26 / 14%);
	--space-1: 0.25rem;
	--space-2: 0.5rem;
	--space-3: 0.75rem;
	--space-4: 1rem;
	--space-5: 1.5rem;
	--space-6: 2rem;
	--space-7: 3rem;
	--space-8: 4.5rem;
	--transition-fast: 0.18s ease;
	--ring: 0 0 0 3px color-mix(in srgb, var(--color-primary) 30%, transparent);
	--font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	--font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
	:root {
		--color-bg: #101013;
		--color-surface: #17171c;
		--color-text: #f2f1ec;
		--color-text-muted: #a2a1a9;
		--color-border: #2b2b31;
		--color-card-bg: #1d1d23;
		--color-primary-ink: #062a30;
		--color-danger-ink: #f87171;
		--color-success-ink: #4ade80;
		--color-warning-ink: #fbbf24;
		--shadow-sm: 0 1px 2px rgb(0 0 0 / 40%);
		--shadow-md: 0 10px 30px rgb(0 0 0 / 45%);
		--shadow-lg: 0 24px 60px rgb(0 0 0 / 55%);
	}
}

*,
*::before,
*::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html {
	scroll-behavior: smooth;
	scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	font-family: var(--font-sans);
	font-size: 1rem;
	line-height: 1.6;
	color: var(--color-text);
	background: var(--color-bg);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	text-rendering: optimizeLegibility;
}

main {
	flex: 1;
}

img {
	display: block;
	max-width: 100%;
}

h1,
h2,
h3,
h4 {
	line-height: 1.12;
	letter-spacing: -0.03em;
	font-weight: 700;
}

h1 {
	font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);
}

h2 {
	font-size: clamp(1.4rem, 1.15rem + 1vw, 1.9rem);
}

h3 {
	font-size: 1.05rem;
}

a {
	color: inherit;
	text-decoration: none;
}

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

p a,
.content-body a {
	text-decoration: underline;
	text-underline-offset: 0.18em;
}

::selection {
	background: color-mix(in srgb, var(--color-primary) 35%, transparent);
	color: var(--color-text);
}

:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 3px;
	border-radius: var(--radius-sm);
}

.container {
	width: 100%;
	max-width: var(--max-width);
	margin-inline: auto;
	padding-inline: var(--space-5);
}

.eyebrow {
	display: inline-block;
	margin-bottom: var(--space-2);
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--color-text-muted);
}

.muted {
	color: var(--color-text-muted);
}

.empty,
.loading {
	padding: var(--space-6) 0;
	color: var(--color-text-muted);
}

.form-error {
	margin: var(--space-4) 0;
	padding: var(--space-3) var(--space-4);
	font-size: 0.9rem;
	color: var(--color-danger-ink);
	background: color-mix(in srgb, var(--color-danger) 8%, var(--color-surface));
	border-left: 3px solid var(--color-danger);
	border-radius: var(--radius-sm);
}

.skip-link {
	position: absolute;
	left: var(--space-4);
	top: -100px;
	z-index: 100;
	padding: var(--space-2) var(--space-4);
	background: var(--color-text);
	color: var(--color-bg);
	border-radius: var(--radius-md);
	transition: top var(--transition-fast);
}

.skip-link:focus {
	top: var(--space-4);
	color: var(--color-bg);
}

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	padding: var(--space-3) var(--space-5);
	font-family: inherit;
	font-size: 0.95rem;
	font-weight: 600;
	line-height: 1.3;
	color: var(--color-primary-ink);
	background: var(--color-primary);
	border: 1px solid transparent;
	border-radius: var(--radius-pill);
	cursor: pointer;
	transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn:hover {
	background: var(--color-primary-hover);
	color: var(--color-primary-ink);
	text-decoration: none;
	box-shadow: var(--shadow-sm);
}

.btn:active {
	transform: translateY(1px);
}

.btn[disabled] {
	opacity: 0.45;
	cursor: not-allowed;
	transform: none;
	box-shadow: none;
}

.btn--ghost {
	color: var(--color-text);
	background: transparent;
	border-color: var(--color-text);
}

.btn--ghost:hover {
	color: var(--color-bg);
	background: var(--color-text);
	border-color: var(--color-text);
}

.btn--block {
	width: 100%;
}

.btn--danger {
	color: #fff;
	background: var(--color-danger);
	border-color: var(--color-danger);
}

.form-control {
	display: block;
	width: 100%;
	padding: var(--space-3) var(--space-4);
	font-family: inherit;
	font-size: 1rem;
	line-height: 1.4;
	color: var(--color-text);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

textarea.form-control {
	resize: vertical;
}

.form-control:focus,
.form-control:focus-visible {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: var(--ring);
}

.field {
	display: flex;
	flex-direction: column;
	gap: var(--space-1);
	margin-bottom: var(--space-4);
}

.field label {
	font-size: 0.82rem;
	font-weight: 600;
	letter-spacing: 0.02em;
}

.field-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--space-4);
}

.alert {
	margin-bottom: var(--space-4);
	padding: var(--space-3) var(--space-4);
	font-size: 0.9rem;
	border-radius: var(--radius-md);
}

.alert--error {
	color: var(--color-danger-ink);
	background: color-mix(in srgb, var(--color-danger) 8%, var(--color-surface));
	border-left: 3px solid var(--color-danger);
}

.alert--success {
	color: var(--color-success-ink);
	background: color-mix(in srgb, var(--color-success) 8%, var(--color-surface));
	border-left: 3px solid var(--color-success);
}

.content-body {
	font-size: 1.0625rem;
	line-height: 1.8;
}

.content-body h1,
.content-body h2,
.content-body h3,
.content-body h4 {
	margin-top: 1.6em;
	margin-bottom: 0.5em;
	scroll-margin-top: calc(var(--header-height) + 1rem);
}

.content-body h1 {
	font-size: 1.85rem;
}

.content-body h2 {
	font-size: 1.55rem;
}

.content-body h3 {
	font-size: 1.25rem;
}

.content-body p,
.content-body ul,
.content-body ol,
.content-body blockquote,
.content-body figure,
.content-body pre {
	margin-bottom: 1.25em;
}

.content-body ul,
.content-body ol {
	padding-left: 1.5em;
}

.content-body li {
	margin-bottom: 0.3em;
}

.content-body blockquote {
	padding: var(--space-2) var(--space-4);
	color: var(--color-text-muted);
	font-style: italic;
	background: var(--color-card-bg);
	border-left: 3px solid var(--color-primary);
	border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.content-body img {
	max-width: 100%;
	height: auto;
	border-radius: var(--radius-md);
}

.content-body pre {
	overflow-x: auto;
	border-radius: var(--radius-md);
}

.content-body code {
	font-family: var(--font-mono);
	font-size: 0.9em;
}

.content-body :not(pre) > code {
	padding: 0.15em 0.4em;
	background: var(--color-card-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
}

.content-body table {
	width: 100%;
	border-collapse: collapse;
}

.content-body th,
.content-body td {
	padding: var(--space-2) var(--space-3);
	text-align: left;
	border: 1px solid var(--color-border);
}

.content-body th {
	background: var(--color-card-bg);
}

.content-body hr {
	margin: 2em auto;
	border: none;
	border-top: 1px solid var(--color-border);
}

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

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