/*
Theme Name: Seokla
Theme URI: https://seokla.com
Author: Sandr Chenk
Author URI: https://sandr-chenk.com/
Description: Лёгкая классическая тема для каталога SEO-инструментов. Без Gutenberg, без фидов, без jQuery.
Version: 0.1.0
Requires at least: 7.1
Requires PHP: 8.5
Text Domain: seokla
*/

@layer reset, base, ui, pages;

@view-transition { navigation: auto; }

@layer reset {
	*, ::before, ::after { box-sizing: border-box; }
	body, h1, h2, h3, p, ol, ul, dl, dd, figure { margin: 0; }
	img, svg { display: block; max-inline-size: 100%; }
	input, button, select, textarea { font: inherit; color: inherit; }
	a { color: inherit; text-decoration: none; }
}

@layer base {
	:root {
		color-scheme: light dark;
		interpolate-size: allow-keywords;

		--bg: light-dark(oklch(96% .03 285), oklch(17% .03 285));
		--ink: light-dark(oklch(26% .1 285), oklch(95% .02 285));
		--ink-2: light-dark(oklch(44% .13 285), oklch(78% .07 285));
		--brand: oklch(50% .17 285);
		--on-brand: oklch(97% .02 285);

		--glass: light-dark(oklch(100% 0 0 / .52), oklch(100% 0 0 / .07));
		--edge: light-dark(oklch(100% 0 0 / .85), oklch(100% 0 0 / .14));
		--card: light-dark(oklch(100% 0 0 / .86), oklch(100% 0 0 / .1));

		--high: oklch(60% .2 25);
		--mid: oklch(74% .16 75);
		--ok: oklch(64% .14 165);

		--r: 1.25rem;
		--gap: clamp(.625rem, 2vw, 1rem);
	}

	body {
		display: grid;
		grid-template-rows: auto 1fr auto;
		gap: var(--gap);
		min-block-size: 100dvb;
		padding: .75rem max(1rem, 50vw - 34rem) 1.5rem;
		font: 1rem/1.6 system-ui, sans-serif;
		color: var(--ink);
		background:
			radial-gradient(40rem 30rem at 0% 0%, oklch(75% .12 285 / .55), transparent 70%),
			radial-gradient(36rem 28rem at 100% 22rem, oklch(85% .1 170 / .5), transparent 70%),
			radial-gradient(34rem 26rem at 40% 60rem, oklch(85% .09 0 / .45), transparent 70%),
			var(--bg);
		background-repeat: no-repeat;
	}

	h1, h2, h3 { line-height: 1.2; font-weight: 600; text-wrap: balance; }
	h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
	h2 { font-size: 1.125rem; }
	p { text-wrap: pretty; }
	small { font-size: .8125rem; color: var(--ink-2); }
	abbr[title] { text-decoration: underline dotted; cursor: help; }
	:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
}

@layer ui {
	/* Glass is for the header, the URL field and the task tiles only. The report uses solid cards. */
	.glass {
		background: var(--glass);
		border: 1px solid var(--edge);
		border-radius: var(--r);
		backdrop-filter: blur(18px) saturate(1.4);

		@media (prefers-reduced-transparency: reduce) {
			background: var(--card);
			backdrop-filter: none;
		}
	}

	.card {
		background: var(--card);
		border: 1px solid var(--edge);
		border-radius: var(--r);
		padding: 1rem 1.125rem;
	}

	.i {
		inline-size: 1.25em;
		block-size: 1.25em;
		fill: none;
		stroke: currentColor;
		stroke-width: 2;
		stroke-linecap: round;
		stroke-linejoin: round;
	}

	button, .btn {
		display: inline-flex;
		align-items: center;
		justify-self: start;
		gap: .5rem;
		block-size: 2.5rem;
		padding-inline: 1.125rem;
		border: 0;
		border-radius: 99rem;
		background: var(--brand);
		color: var(--on-brand);
		font-weight: 500;
		cursor: pointer;
		transition: scale .15s;

		&:active { scale: .97; }
		&:disabled { opacity: .6; cursor: progress; }
		&.quiet { background: var(--glass); border: 1px solid var(--edge); color: var(--ink); }
	}

	.high { --tone: var(--high); }
	.mid { --tone: var(--mid); }
	.ok { --tone: var(--ok); }

	.chip {
		display: inline-block;
		padding: .125rem .75rem;
		border-radius: 99rem;
		font-size: .8125rem;
		font-weight: 500;
		background: color-mix(in oklch, var(--tone, var(--brand)) 18%, transparent);
		color: light-dark(
			color-mix(in oklch, var(--tone, var(--brand)) 55%, black),
			color-mix(in oklch, var(--tone, var(--brand)) 55%, white)
		);
	}

	.bar {
		position: sticky;
		inset-block-start: .75rem;
		z-index: 1;
		display: flex;
		align-items: center;
		gap: 1.25rem;
		padding: .625rem 1.125rem;
		border-radius: 99rem;

		nav { display: flex; gap: 1.25rem; overflow-x: auto; font-size: .9375rem; color: var(--ink-2); }
		nav a:is(:hover, [aria-current]) { color: var(--ink); }
	}

	.logo {
		display: flex;
		align-items: center;
		gap: .5rem;
		font-size: 1.0625rem;
		font-weight: 600;

		&::before { content: ""; inline-size: 1.5rem; aspect-ratio: 1; border-radius: 50%; background: var(--brand); }
	}

	.ask {
		display: flex;
		gap: .5rem;
		padding: .375rem;
		border-radius: 99rem;
		max-inline-size: 30rem;

		input {
			flex: 1;
			min-inline-size: 0;
			padding-inline: 1rem;
			border: 0;
			background: none;
			outline: 0;
		}
		&:focus-within { outline: 2px solid var(--brand); }

		/* Tools with extra choices: the URL gets its own row, the selects sit beside the button. */
		&:has(select) {
			flex-wrap: wrap;
			border-radius: var(--r);

			input { flex-basis: 100%; block-size: 2.5rem; }
		}
		select {
			flex: 1;
			min-inline-size: 9rem;
			block-size: 2.5rem;
			padding-inline: .875rem;
			border: 1px solid var(--edge);
			border-radius: 99rem;
			background: var(--card);
		}
	}

	body > footer {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-between;
		gap: 1rem;
		padding-block-start: 2rem;

		nav { display: flex; gap: 1rem; font-size: .8125rem; color: var(--ink-2); }
	}
}

@layer pages {
	main { display: grid; align-content: start; gap: var(--gap); }

	.hero {
		display: grid;
		justify-items: center;
		gap: .75rem;
		padding-block: clamp(1.5rem, 6vw, 3.5rem) 1rem;
		text-align: center;

		h1 { max-inline-size: 16em; }
		.ask { inline-size: 100%; margin-block-start: .5rem; }
	}

	.lead { max-inline-size: 34em; font-size: 1.0625rem; color: var(--ink-2); }

	.tasks {
		display: grid;
		grid-template-columns: repeat(auto-fill, minmax(min(100%, 14rem), 1fr));
		gap: var(--gap);
	}

	.task {
		display: grid;
		gap: .25rem;
		padding: 1rem;
		transition: translate .2s;

		&:hover { translate: 0 -2px; }
		&:nth-child(3n + 2) { --h: 170; }
		&:nth-child(3n) { --h: 0; }

		.i {
			inline-size: 2.25rem;
			block-size: 2.25rem;
			padding: .5rem;
			margin-block-end: .375rem;
			border-radius: .75rem;
			background: oklch(50% .15 var(--h, 285));
			color: oklch(97% .02 var(--h, 285));
		}
		strong { font-weight: 600; line-height: 1.35; }
	}

	.tool {
		.back { justify-self: start; color: var(--ink-2); font-size: .9375rem; }
		.ask { max-inline-size: none; }
	}

	.toolhead { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem; }

	.switch {
		display: flex;
		align-items: center;
		gap: .5rem;
		font-size: .875rem;
		color: var(--ink-2);
		cursor: pointer;

		input {
			appearance: none;
			inline-size: 2.25rem;
			block-size: 1.25rem;
			margin: 0;
			border-radius: 99rem;
			background: radial-gradient(circle at .625rem, var(--on-brand) .4rem, transparent .45rem) no-repeat var(--ink-2);
			transition: background-position .2s;

			&:checked { background-color: var(--brand); background-position: 1rem; }
		}
	}

	:root:not(:has(#expert:checked)) .expert { display: none; }

	.report {
		display: grid;
		gap: var(--gap);

		&:empty { display: none; }
	}

	.verdict {
		display: grid;
		grid-template-columns: 7.5rem 1fr;
		column-gap: 1.25rem;
		row-gap: .375rem;
		align-items: center;

		.ring { grid-row: span 3; }
		h2 { font-size: 1.25rem; }
		p { color: var(--ink-2); }
		.chips { display: flex; flex-wrap: wrap; gap: .375rem; }

		@container (inline-size < 26rem) {
			grid-template-columns: 1fr;
			.ring { grid-row: auto; inline-size: 6rem; }
		}
	}

	.report { container-type: inline-size; }

	.ring {
		circle { fill: none; stroke-width: 10; stroke: color-mix(in oklch, var(--ink) 10%, transparent); }
		.val {
			stroke: var(--tone);
			stroke-linecap: round;
			rotate: -90deg;
			transform-origin: center;
			animation: ring 1s ease-out;
		}
		text { font-size: 30px; font-weight: 600; fill: currentColor; text-anchor: middle; }
	}

	@keyframes ring { from { stroke-dasharray: 0 100; } }

	.metrics {
		display: grid;
		grid-template-columns: repeat(auto-fit, minmax(min(100%, 11rem), 1fr));
		gap: .5rem;

		/* One tile per figure: the value first, its name underneath. */
		div {
			display: grid;
			align-content: start;
			gap: .125rem;
			padding: .75rem .875rem;
			border-radius: .875rem;
			background: color-mix(in oklch, var(--brand) 6%, transparent);
		}
		dt { order: 1; font-size: .8125rem; line-height: 1.35; color: var(--ink-2); }
		dd { font-size: 1.25rem; font-weight: 600; line-height: 1.3; overflow-wrap: anywhere; }

		& + h3 { margin-block-start: 1.25rem; }
	}

	/* A list of name/value rows. */
	.rows {
		div {
			display: flex;
			flex-wrap: wrap;
			justify-content: space-between;
			gap: .125rem 1rem;
			padding-block: .5rem;

			& + div { border-block-start: 1px solid color-mix(in oklch, var(--ink) 10%, transparent); }
		}
		dd { font: .875rem/1.6 ui-monospace, monospace; }
	}

	/* The full path of a check: the same rows, numbered. */
	.trace {
		counter-reset: step;

		div { counter-increment: step; }
		dt::before { content: counter(step) ". "; color: var(--ink-2); }
	}

	/* A timeline: name, bar, time. Bar position and width come from SVG attributes. */
	.waterfall {
		div {
			display: grid;
			grid-template-columns: 4.5rem 1fr 4.5rem;
			align-items: center;
			gap: .75rem;
			padding-block: .375rem;
		}
		dt { font-size: .875rem; color: var(--ink-2); }
		svg {
			inline-size: 100%;
			block-size: 1rem;
			border-radius: .3rem;
			background: color-mix(in oklch, var(--ink) 6%, transparent);
			fill: var(--brand);
		}
		dd:last-child { font: .875rem/1.6 ui-monospace, monospace; text-align: end; }
	}

	.report h3 { font-size: 1rem; margin-block-end: .5rem; }

	.issue {
		summary {
			display: flex;
			flex-wrap: wrap;
			align-items: center;
			gap: .5rem .625rem;
			font-weight: 600;
			cursor: pointer;
			list-style: none;

			small { margin-inline-start: auto; font-weight: 400; }
		}
		p { margin-block-start: .625rem; color: var(--ink-2); }
		ol { margin-block-start: .625rem; padding-inline-start: 1.25rem; }
		li::marker { color: var(--brand); font-weight: 600; }

		&::details-content {
			block-size: 0;
			overflow: clip;
			transition: block-size .25s, content-visibility .25s allow-discrete;
		}
		&[open]::details-content { block-size: auto; }
	}

	.note { font-size: .875rem; color: var(--ink-2); }

	.prose {
		max-inline-size: 42rem;

		> * + * { margin-block-start: 1em; }
		h2 { margin-block-start: 1.75em; font-size: 1.375rem; }
		a { color: var(--brand); text-decoration: underline; }
		:is(ul, ol) { padding-inline-start: 1.25rem; }
		pre { overflow-x: auto; padding: 1rem; border-radius: .75rem; background: var(--card); font-size: .875rem; }
	}
}

@media (prefers-reduced-motion: reduce) {
	*, ::before, ::after { animation: none !important; transition: none !important; }
	@view-transition { navigation: none; }
}