/* Rework of https://antigravity.google/ using modern CSS */
/* See https://brm.us/antigravity for details */
@layer reset, tokens, base, components, layout, moderncss, util;

@layer moderncss {
	@layer misc {
		/* To make the bouncy scroll effect work when the page is shown in an iframe and when the user is already at the edges and nudging the scroller */
		:root {
			overscroll-behavior-y: contain;
		}
	}

	@layer layout {
		/* Draw a particles ring in the background of the welcome screen */
		/* I am using Houdini PaintWorklets for this */
		@layer ring-particles {
			@supports (background: paint(something)) {
				@layer particles {
					#welcome {
						--ring-radius: 100;
						--ring-thickness: 600;
						--particle-count: 80;
						--particle-rows: 25;
						--particle-size: 2;
						--particle-color: navy;

						--particle-min-alpha: 0.1;
						--particle-max-alpha: 1;

						--seed: 200;

						background-image: paint(ring-particles);
					}
				}

				@layer animation {
					@property --animation-tick {
						syntax: "<number>";
						inherits: false;
						initial-value: 0;
					}
					@property --ring-radius {
						syntax: "<number> | auto";
						inherits: false;
						initial-value: auto;
					}
					@keyframes ripple {
						0% {
							--animation-tick: 0;
						}
						100% {
							--animation-tick: 1;
						}
					}
					@keyframes ring {
						0% {
							--ring-radius: 150;
						}
						100% {
							--ring-radius: 250;
						}
					}
					#welcome {
						animation: ripple 6s linear infinite,
							ring 6s ease-in-out infinite alternate;
					}
				}

				@layer follow-mouse {
					@property --ring-x {
						syntax: "<number>";
						inherits: false;
						initial-value: 50;
					}
					@property --ring-y {
						syntax: "<number>";
						inherits: false;
						initial-value: 50;
					}
					@property --ring-interactive {
						syntax: "<number>";
						inherits: false;
						initial-value: 0;
					}

					#welcome {
						/* @NOTE: Requires JS until the CSSWG resolves on https://github.com/w3c/csswg-drafts/issues/6733 */
						transition: --ring-x 3s ease, --ring-y 3s ease;

						/* @NOTE: This still feels uncanny, so I’m disabling it for now. It could be solved by having something like an animation-speed available. */
						/* transition-duration: if(
							style(--ring-interactive: 1): 0.25s;
							else: 3s;
						); */
					}
				}
			}
		}

		/* Draw some dynamic noise behind some of the screens */
		/* I am using Houdini PaintWorklets for this */
		@layer speckled-backgrounds {
			@supports (background: paint(something)) {
				#beforeyougo .card,
				#who > div {
					--extra-confettiNumber: 250;
					--extra-confettiLengthVariance: 1;
					--extra-confettiWeightVariance: 1;
					background-image: paint(extra-confetti);
				}
			}
		}

		@layer product {
			/* @TODO: Move `container-type: inline-size` for centered sticky using cqi to here, as that is modern CSS */
		}
	}

	@layer components {
		@layer button {
			/* Buttons in .dark containers have inverted colors */
			@scope (.dark) {
				button {
					color: var(--theme-surface-on-surface);
					background: var(--theme-primary-on-primary);
					border: 1px solid var(--theme-outline-variant);

					&:hover,
					&:focus-visible {
						background: var(--theme-button-secondary-hover);
					}

					&.secondary {
						color: var(--theme-surface-surface);
						background: var(--theme-nav-button-hover);

						&:hover,
						&:focus-visible {
							background: var(--theme-button-secondary-inverse-hover);
						}
					}
				}
			}
		}

		@layer navbar {
			/* Anchor the mobile nav underneath the header */
			@layer mobile {
				@media (width < 930px) {
					header {
						anchor-name: --header;
					}

					header nav {
						position: fixed;
						inset: auto;
						top: 0; /* Undo non-modern-CSS styling */
						position-anchor: --header;
						position-area: bottom;
						justify-self: stretch;
						align-self: stretch;
					}
				}
			}

			/* Animate-in the nav on mobile when showing */
			@layer mobile {
				@media (width < 930px) {
					header nav {
						transition: opacity 0.15s ease-in;
						@starting-style {
							opacity: 0;
						}
					}
				}
			}

			/* Don’t scroll page when menu is open */
			@media (width < 930px) {
				header:has(.menu-checkbox:checked) {
					&,
					& nav {
						overflow: auto;
						overscroll-behavior: contain;
					}
				}
			}

			/* Hidey bar – http://brm.us/hidey-bar-2 */
			@layer hidey-bar {
				html {
					container-type: scroll-state;
				}
				.header-wrapper:not(.header-wrapper:has(.menu-checkbox:checked)) {
					transition: translate 0.25s;
					translate: 0 0;

					@container scroll-state(scrolled: bottom) {
						translate: 0 -100%;
					}
				}
			}
		}

		@layer carousel {
			@layer scroll-snapping {
				@layer base-setup {
					@supports (scroll-padding-inline: 3rem) {
						.carousel {
							scroll-padding-inline: 3rem;
							scroll-snap-type: x mandatory;

							> * {
								scroll-snap-align: start;
							}

							/* @NOTE: On the orignal page the last item also snaps to the left */
							/* To get this working, I’d manually add some padding to the right */
							/* Defining that “some” is tricky and requires manual calculation */
							/* Here I am calculating 40vi (because the entries are 60vi) minus gap */
							/* So maybe we should have `auto` on scroll-padding do something? */
							@media (width >= 930px) {
								padding-inline: 3rem calc(40vi - 3rem);
							}
						}
					}
				}

				@layer snapped-effects {
					/* @note: The typewriter effect is done with scroll-triggered animations, but could as well be done with snapped state queries */

					.carousel > * {
						container-type: scroll-state;

						@supports (container-type: scroll-state) {
							/* The images */
							> figure {
								opacity: 0.25;
								transition: opacity 0.5s ease;

								@container scroll-state(snapped: x) {
									opacity: 1;
								}
							}

							/* The bylines */
							> *:not(figure) {
								transition: opacity 0.5s ease, translate 0.5s ease;
								transition-delay: 0s;
								opacity: 0;
								translate: 0 calc(0.5rem * (sibling-index() - 1)) 0;

								@container scroll-state(snapped: x) {
									transition-delay: 0.2s; /* NOTE: It feels like CSS snapped is triggering while it’s still scrolling, so we delay it a bit */
									opacity: 1;
									translate: 0 0 0;
								}
							}
						}
					}
				}
			}

			@layer niceties {
				.carousel {
					scrollbar-width: none;
					overscroll-behavior-x: contain;
				}
			}

			@layer scroll-buttons {
				/* @note: https://chrome.dev/carousel-configurator/ really helps here */
				.carousel {
					position: relative;
					scroll-behavior: smooth;
					anchor-name: --carousel;

					&::scroll-button(*) {
						position: fixed;
						position-anchor: --carousel;
						position-visibility: always;
						font-family: "Material Symbols Outlined";

						color: var(--theme-surface-on-surface);
						background: var(--theme-tonal-tonal);
						border: none;
						block-size: 2em;
						font-size: 1.3em;
						inline-size: 2.5em;
						display: flex;
						align-items: center;
						justify-content: center;
						cursor: pointer;
						border-radius: 999px;

						transition: opacity 0.25s ease;
					}

					/* @note: We currently can’t nest this inside `&::scroll-button(*)` because of how CSS Nesting works */
					&::scroll-button(*):hover {
						background: #eff0f3;
					}
					&::scroll-button(*):disabled {
						cursor: not-allowed;
						opacity: 0.25;
					}

					/* @note: We deviate from the antigravity site here, because CSS carousel does not offer a wrapper around both scroll buttons … */
					&::scroll-button(left) {
						translate: -50% 0;
						content: "arrow_back" / "Previous";
					}
					&::scroll-button(right) {
						translate: 50% 0;
						content: "arrow_forward" / "Next";
					}

					@media (width < 930px) {
						&::scroll-button(left),
						&::scroll-button(right) {
							position-area: center center;
							align-self: end;
						}
					}

					@media (width >= 930px) {
						&::scroll-button(left),
						&::scroll-button(right) {
							position-area: center center;
							align-self: start;
							justify-self: start;
							/* Magic numbers … these rely on the flex-basis of the slides + the aspect-ratio of the photos. Nasty, but it works. */
							left: calc(60vi - 1em);
							top: calc((60vi + 1em) * 9 / 16);
						}
					}
				}
			}
		}
	}

	@layer animations {
		@layer revealing-welcome-items {
			#welcome {
				svg,
				.cta {
					transition: translate 0.5s ease, opacity 0.5s ease;
					@starting-style {
						translate: 0 50% 0;
						opacity: 0;
					}
				}
			}
		}

		@layer scroll-triggered-typewriter-effect {
			@supports (timeline-trigger-name: --t) {
				/* @ref https://codepen.io/bramus/pen/JjwxLNM */
				@keyframes blink {
					from {
						opacity: 0;
					}
				}
				@keyframes text {
					from {
						background-size: 0;
					}
				}

				/* Typewriter effect */
				.typewriter {
					background: 
						/* highlight text */ linear-gradient(
							90deg,
							var(--typewriter-text-color, var(--theme-surface-on-surface)) 0 0
						)
						0 / calc(var(--n, 100) * 1ch) no-repeat /* faded text */ transparent;
					-webkit-background-clip: text;
					color: transparent;
					animation: text 2s ease-in both;

					&::after {
						content: "|";
						--hdr-gradient: linear-gradient(
							in oklch,
							oklch(80% 0.3 34),
							oklch(90% 0.3 200)
						);
						--sdr-gradient: linear-gradient(#ff4700, #0ff);

						background: var(--hdr-gradient);
						background-clip: text;
						color: transparent;

						/* The delay is manually calculated to make the animation only start after the typewriter itself has finished */
						animation: blink 0.2s 1.4s ease infinite alternate both;
					}
				}

				/* Typewriter Trigger in product section */
				#product *:has(> .typewriter) {
					timeline-trigger: --t view() cover 30% cover 1000%;
					trigger-scope: --t;

					.typewriter {
						animation-trigger: --t play-once;
						&::after {
							animation-trigger: --t play-once;
							animation-delay: 1.6s;
						}
					}
				}

				/* Typewriter Trigger in Carousel */
				.carousel > * {
					timeline-trigger: --t view(inline) entry 90% exit 50%;
					trigger-scope: --t;

					.typewriter {
						--typewriter-text-color: white;
						animation-trigger: --t play-forwards reset;
						animation-duration: 1.5s;

						&::after {
							animation-trigger: --t play-forwards reset;
							animation-delay: 0.9s;
						}
					}
				}

				/* Typewriter Trigger in Before You Go */
				#beforeyougo > .card {
					timeline-trigger: --t view() cover 30% cover 1000%;
					trigger-scope: --t;

					.typewriter {
						--typewriter-text-color: white;
						animation-trigger: --t play-once;
						animation-duration: 2s;

						&::after {
							animation-trigger: --t play-once;
							animation-delay: 1s;
						}
					}
				}
			}
		}

		@layer moving-icons {
			@layer slide-in {
				@keyframes slide-in {
					from {
						translate: 100% 0 0;
					}
				}
				#product .icons {
					timeline-trigger: --t view() cover 30% cover 1000%;
					trigger-scope: --t;
					animation: slide-in 1s ease both;
					animation-trigger: --t play-once;
				}
			}
			@layer wobble {
				@keyframes wobble {
					from {
						translate: 0 75%;
					}
					to {
						translate: 0 -75%;
					}
				}

				#product .icon {
					/* @NOTE: If we had support for random(), we could even randomize the animation distance per element */
					animation: wobble 4s ease infinite alternate;
					animation-delay: calc(mod(sibling-index(), 5) * -1s);
				}
			}
		}

		@layer product-features {
			/* Scroll-triggered fading of the text + images */
			@supports (timeline-trigger-name: --t) {
				@keyframes fade-a-bit {
					from {
						opacity: 0.3;
					}
					to {
						opacity: 1;
					}
				}

				@keyframes fake-clip-it {
					to {
						scale: 100% 0%;
					}
				}

				@keyframes fade-in {
					from {
						opacity: 0;
					}
				}

				@media (width >= 930px) {
					#features .feature {
						timeline-trigger: --t view() entry 100% cover 50%;
						trigger-scope: --t;

						h3 {
							animation: fade-a-bit 500ms ease both;
							animation-trigger: --t play-forwards play-backwards;
						}

						p {
							position: relative;

							&::after {
								content: "";
								position: absolute;
								bottom: 0;
								left: 0;
								right: 0;
								height: 100%;
								transform-origin: 0 100%;
								background: white;
								animation: fake-clip-it 500ms ease both;
								animation-trigger: --t play-forwards play-backwards;
							}
						}

						/* Exclude the first one, because that one is always visible */
						img:not(.feature:first-child img) {
							animation: fade-in 500ms ease both;
							animation-trigger: --t play-forwards play-backwards; /* TODO: Don’t fade out the underlying ones */
						}
					}
				}
			}

			/* @TODO: Scroll-Driven unclipping of the image-wrapper (on the first image) */
		}

		@layer scroll-driven-animations {
			/* @note: We also check for range support. See https://brm.us/sda-feature-detection for details */
			@supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
				@keyframes scale-up {
					from {
						scale: 0.85;
					}
				}
				#beforeyougo .card {
					animation: scale-up linear both;
					animation-timeline: view();
					animation-range: entry 50% entry 100%;
				}
			}
		}
	}
}

@layer components {
	@layer button {
		button {
			background: var(--theme-primary-primary);
			color: var(--theme-primary-on-primary);
			border: 0px;
			border-radius: 999px;
			padding: 0.6em 1.5em;

			display: flex;
			flex-direction: row;
			justify-content: center;
			align-items: center;
			gap: 0.4rem;

			font-size: 0.9em;

			cursor: pointer;
			transition: 0.15s background ease-out;

			&:hover,
			&:focus-visible {
				background: var(--theme-button-states-primary-hovered);
			}

			&:has(span + .material-symbols-outlined) {
				padding-inline-end: 1em;
			}

			&:has(.material-symbols-outlined + span) {
				padding-inline-start: 1em;
			}

			&.secondary {
				color: var(--theme-surface-on-surface);
				background: var(--theme-secondary-button);
				border: 1px solid var(--theme-outline-variant);

				&:hover,
				&:focus-visible {
					background: var(--theme-button-secondary-hover);
				}
			}
		}
	}

	@layer navbar {
		@layer shared {
			nav ul {
				list-style: none;
				margin: 0;
				padding: 0;
			}

			.menu-checkbox {
				display: none;
			}

			nav a {
				color: var(--theme-surface-on-surface);
				transition: 0.15s color ease-out, 0.15s background ease-out;
				text-decoration: none;

				&:hover,
				&:focus-visible {
					color: #000;
					background: var(--theme-button-states-hovered);
				}
			}
		}
		@layer mobile {
			@media (width < 930px) {
				.menu-button {
					cursor: pointer;
					width: 3.5em;
					border-radius: 999px;
					text-align: center;
					place-content: center;

					transition: 0.15s background ease-out;

					&:hover,
					&:focus-visible {
						background: var(--theme-button-states-hovered);
					}
				}
				nav {
					display: none;
				}

				nav li {
					font-size: 1.85em;
					font-weight: 350;
					border-bottom: 1px solid var(--theme-surface-surface-container-higher);

					&:first-child {
						border-top: 1px solid var(--theme-surface-surface-container-higher);
					}
				}

				nav a {
					display: block;

					padding-inline: 3rem;
					padding-block: 1.5rem;
				}

				/* When the menu toggle is checked */
				.menu-checkbox:checked {
					/* Show the nav */
					& ~ nav {
						position: fixed;
						inset: 0;
						top: 2.75em; /* This is a guess for how tall the topbar is */
						display: block;
						background: var(--palette-grey-0);
					}

					/* Show the proper icon in the button */
					& ~ .menu-button {
						[data-show-when="closed"] {
							display: none !important;
						}
					}

					/* Colorize the button differently */
					& ~ .menu-button {
						background: var(--theme-primary-primary);
						color: var(--theme-primary-on-primary);

						&:hover,
						&:focus-visible {
							background: var(--theme-button-states-primary-hovered);
						}
					}
				}

				/* When the menu toggle is not checked */
				.menu-checkbox:not(:checked) {
					/* Show the proper icon in the button */
					& ~ .menu-button {
						[data-show-when="open"] {
							display: none !important;
						}
					}
				}

				/* Hide the download button */
				header button {
					display: none;
				}
			}
		}

		/* Large Menu */
		@layer large {
			@media (width >= 930px) {
				nav ul {
					display: flex;
					flex-direction: row;
					gap: 0.2rem;
					align-self: flex-start;
				}

				nav a {
					padding: 0.6em 1.2em;
					border-radius: 999px;
					color: var(--theme-surface-on-surface-variant);
					white-space: nowrap;

					&:hover,
					&:focus-visible {
						color: #000;
						background: var(--theme-nav-button-hover);
					}
				}
				.menu-button {
					display: none;
				}
			}
		}
	}

	@layer card {
		.card {
			border-radius: 2em;

			&.dark {
				background: var(--theme-primary-primary);
				color: var(--theme-surface-surface);
			}
		}
	}
}

@layer layout {
	@layer grid {
		body {
			margin: 0;
			display: grid;
			grid-template-columns:
				[fullbleed-start]
				3rem
				[main-start]
				1fr
				[main-end]
				3rem
				[fullbleed-end];
			grid-auto-rows: min-content;
		}

		body > * {
			grid-column: fullbleed;
		}
	}

	@layer navigation {
		.header-wrapper {
			position: fixed;
			top: 0;
			left: 0;
			right: 0;

			background: var(--theme-surface-surface);
			z-index: 1;
		}

		header {
			display: flex;
			flex-direction: row;
			gap: 2rem;
			align-items: center;

			padding-inline: 3rem; /* @TODO: Figure out if we can subgrid for this */
			padding-block: 0.5rem;

			button,
			.menu-button {
				margin-left: auto;
			}
		}
	}

	@layer welcome {
		#welcome {
			h1 svg {
				height: 1em;
				width: auto;
				display: block;
				margin: 0 auto;
			}

			p {
				font-size: 4.5em;
				text-align: center;
				font-weight: 500;

				color: var(--theme-surface-on-surface);

				span {
					display: block;
					font-size: 0.7em;
					color: var(--theme-surface-on-surface-variant);
				}
			}

			.cta {
				display: flex;
				flex-direction: row;
				flex-wrap: wrap;
				gap: 0.3em;
				justify-content: center;

				width: 90%;
				margin: 0 auto;

				button {
					font-size: 1.15em;
				}
			}
		}
	}

	@layer video {
		#video {
			padding: 0 1em;

			iframe {
				width: 100%;
				height: auto;
				aspect-ratio: 16/9;
				max-height: 75vh;

				border-radius: 2em;
				overflow: clip;
			}
		}
	}

	@layer product {
		#product {
			display: grid;
			grid-template-columns: subgrid;

			> *:not(.icons) {
				grid-column: main;
			}

			.icons {
				grid-column: fullbleed;
			}

			.icons {
				height: max(24em, 40vb);

				display: flex;
				flex-direction: row;
				gap: 0.5rem;
				align-items: center;

				overflow-x: clip;

				.icon {
					flex: 0 0 clamp(4rem, 10vw, 6rem);
					aspect-ratio: 1;
					border-radius: 50%;

					background: #b7bfd917;
					border: 1px solid var(--theme-outline-variant);
					backdrop-filter: blur(5px);

					display: grid;
					place-content: center;

					span {
						font-size: 2em !important;
					}
				}
			}
		}

		#features {
			.feature {
				padding-bottom: 2rem; /* @note: if only we had `gap: x y;` */

				h3 {
					font-weight: 350;
					font-size: 1.25em;
					line-height: 1.1;
					margin-block-end: 1rem;
				}

				img {
					border-radius: 2em;
				}

				p {
					font-weight: 300;
					line-height: 1.2;
					color: var(--theme-surface-on-surface-variant);
				}
			}

			display: grid;
			grid-template-columns: repeat(2, 1fr);
			grid-auto-rows: auto;
			gap: 2rem;

			@media (width >= 930px) {
				position: relative;

				.img-wrapper {
					position: absolute;
					right: 0;
					top: 0;
					bottom: 0;
					width: 50%;
					container-type: inline-size;
				}

				img {
					position: sticky;
					width: 100cqi;
					height: auto;
					top: calc((100svb - 100cqi) / 2);
				}

				.feature {
					padding-block: 15vb;
					grid-column: 1;

					display: grid;
					place-content: center;

					p {
						width: 60%;
						max-width: 60ch;
						text-wrap: pretty;
					}
				}
			}
		}
	}

	@layer developers {
		#developers {
			width: 100%;
			border-top: 1px solid var(--theme-outline-variant);
			margin-top: 2em;
			padding-top: 2em;

			display: grid;
			grid-template-columns: subgrid;

			> *:not(.carousel) {
				grid-column: main;
			}

			.intro {
				color: var(--theme-surface-on-surface-variant);
				font-size: 1.1em;
				line-height: 1.2;
				font-weight: 320;
				padding: 0.5rem 0;

				@media (width >= 930px) {
					width: calc(
						30vw - 1.5rem
					); /* TODO: This magic value is not entirely 100% accurate. Maybe if we used a cols layout throughout the site it would work nicely */
					margin-left: auto;
				}
			}

			.carousel {
				grid-column: fullbleed;
				padding-inline: 3rem;
				width: 100%;

				overflow-x: scroll;

				display: flex;
				gap: 2rem;

				.developer {
					flex: 0 0 100%;
					overflow: clip;

					@media (width >= 930px) {
						flex-basis: 60vi;
					}

					figure {
						display: grid;
						place-items: center;
						> * {
							grid-area: 1 / 1;
						}

						figcaption {
							color: white;
							font-size: 2em;
						}
					}

					img {
						border-radius: 2em;
					}

					h3 {
						font-weight: 350;
						font-size: 1.25em;
						line-height: 1.1;
						margin-block-end: 0.5rem;
					}

					p {
						width: 40%;
						text-wrap: pretty;
						color: var(--theme-surface-on-surface-variant);
						letter-spacing: 0.05rem;
						font-weight: 300;
					}

					a {
						display: flex;
						flex-direction: row;
						align-items: center;
						gap: 0.25em;

						color: var(--theme-surface-on-surface-variant);
						text-decoration: none;
						font-weight: 300;

						transition: gap 0.15s ease-in;

						&:hover,
						&:focus-visible {
							gap: 0.5em;
						}

						&::after {
							font-family: "Material Symbols Outlined";
							font-weight: normal;
							font-style: normal;
							font-size: 24px;
							line-height: 1;
							letter-spacing: normal;
							text-transform: none;
							display: inline-block;
							white-space: nowrap;
							word-wrap: normal;
							direction: ltr;
							-webkit-font-feature-settings: "liga";
							-webkit-font-smoothing: antialiased;

							content: "\f46a";
						}
					}
				}
			}
		}
	}

	@layer who {
		#who {
			display: flex;
			flex-direction: column;
			align-items: center;
			text-align: center;

			@media (width >= 930px) {
				flex-direction: row;
				justify-content: space-around;
			}

			> div {
				height: 40vh;

				display: grid;
				place-content: center;
				gap: 1em;

				@media (width >= 930px) {
					height: 80vh;
				}
			}

			h3 {
				font-weight: 400;
				font-size: 1.75em;
				line-height: 1.1;

				@media (width >= 930px) {
					font-size: 2.5em;
				}

				span {
					color: var(--theme-surface-on-surface-variant);
				}
			}

			button {
				font-size: 1.15em;
				justify-self: center;
			}
		}
	}

	@layer beforeyougo {
		#beforeyougo {
			display: grid;
			grid-template-columns: subgrid;

			height: min-content;

			> * {
				grid-column: main;
			}

			.card {
				width: 100%;
				height: auto;
				aspect-ratio: 4/3;
				max-height: 80vh;

				display: grid;
				padding: 4em;
				gap: 1rem;

				align-content: center;
			}

			p {
				font-size: 2em;
				text-wrap: pretty;
				margin: 0;
				max-width: 20ch;

				@media (width > 930px) {
					font-size: 3em;
				}
			}

			.buttons {
				display: flex;
				flex-direction: column;
				gap: 0.25rem;
				font-size: 1.2em;
				align-items: start;

				@media (width > 930px) {
					flex-direction: row;
				}
			}
		}
	}
}

@layer base {
	html {
		background: var(--theme-surface-surface);
		font-family: "Google Sans Flex", sans-serif;
		font-weight: 400;

		font-size: 16px;

		color: var(--theme-surface-on-surface);
	}

	section {
		/* Make sections fullheight */
		min-height: 100dvh;

		&.center {
			/* Center their contents */
			place-content: safe center;
			justify-items: center;
		}
	}

	h2 {
		font-size: 2.5em;
		font-weight: 350;
		margin: 0.5rem 0;
		line-height: 1;

		@media (width >= 930px) {
			width: 50%;
			max-width: 25ch;
		}
	}

	p {
		color: var(--theme-surface-on-surface-variant);
	}

	@scope (.dark) {
		p {
			color: var(--theme-surface-surface);
		}
	}
}

@layer reset {
	html,
	body {
		height: 100%;
	}

	* {
		box-sizing: border-box;
	}

	img {
		max-width: 100%;
		height: auto;
	}

	ul[class] {
		margin: 0;
		padding: 0;
		list-style: none;
	}

	input,
	textarea,
	select,
	button {
		font-family: inherit;
		font-size: inherit;
	}

	a:focus-visible,
	button:focus-visible {
		outline-offset: 0.2rem;
	}

	figure {
		margin: 0;
	}
}

@layer util {
	.sr-only {
		position: absolute;
		width: 1px;
		height: 1px;
		padding: 0;
		margin: -1px;
		overflow: hidden;
		clip: rect(0, 0, 0, 0);
		white-space: nowrap;
		border-width: 0;
	}

	.not-sr-only {
		position: static;
		width: auto;
		height: auto;
		padding: 0;
		margin: 0;
		overflow: visible;
		clip: auto;
		white-space: normal;
	}
}

@layer tokens {
	@layer colors {
		:root {
			--palette-grey-900: #2f3034;
			--palette-grey-800: #45474d;
			--palette-grey-50: #e6eaf0;
			--palette-grey-0: #ffffff;
			--palette-grey-1000: #212226;
			--palette-grey-20: #eff2f7;
			--palette-grey-1200: #121317;
			--palette-grey-1100: #18191d;
			--palette-grey-10: #f8f9fc;
			--palette-grey-100: #e1e6ec;
			--palette-grey-200: #cdd4dc;
			--palette-grey-300: #b2bbc5;
			--palette-grey-400: #b7bfd9;
			--palette-grey-600: #aab1cc4d;
			--palette-grey-1000-12: #dedfe2;
			--palette-grey-50-20: #414347;
			--palette-grey-15: #f0f1f5;
			--palette-grey-0-rgb: 255, 255, 255;
			--palette-grey-50-rgb: 230, 234, 240;
			--palette-grey-400-rgb: 183, 191, 217;
			--palette-grey-600-rgb: 170, 177, 204;
			--palette-grey-1000-rgb: 33, 34, 38;
			--palette-grey-1200-rgb: 18, 19, 23;
			--theme-surface-surface: var(--palette-grey-0);
			--theme-surface-on-surface: var(--palette-grey-1200);
			--theme-surface-on-surface-variant: var(--palette-grey-800);
			--theme-surface-surface-container: var(--palette-grey-10);
			--theme-surface-surface-container-high: var(--palette-grey-20);
			--theme-surface-surface-container-higher: var(--palette-grey-50);
			--theme-surface-surface-container-highest: var(--palette-grey-100);
			--theme-surface-inverse-surface: var(--palette-grey-1200);
			--theme-surface-inverse-on-surface: var(--palette-grey-10);
			--theme-surface-inverse-on-surface-variant: var(--palette-grey-300);
			--theme-surface-overlay: rgba(var(--palette-grey-0-rgb), 0.95);
			--theme-surface-overlay-low: rgba(var(--palette-grey-0-rgb), 0.12);
			--theme-surface-overlay-high: rgba(var(--palette-grey-0-rgb), 0.24);
			--theme-surface-overlay-higher: rgba(var(--palette-grey-0-rgb), 0.72);
			--theme-surface-overlay-highest: rgba(var(--palette-grey-0-rgb), 0.95);
			--theme-surface-transparent: rgba(var(--palette-grey-0-rgb), 0);
			--theme-inverse-surface-overlay: rgba(var(--palette-grey-1200-rgb), 0.01);
			--theme-inverse-surface-overlay-high: rgba(
				var(--palette-grey-1200-rgb),
				0.24
			);
			--theme-inverse-surface-overlay-higher: rgba(
				var(--palette-grey-1200-rgb),
				0.72
			);
			--theme-inverse-surface-overlay-highest: rgba(
				var(--palette-grey-1200-rgb),
				0.95
			);
			--theme-inverse-surface: var(--palette-grey-1200);
			--theme-outline: rgba(var(--palette-grey-1000-rgb), 0.12);
			--theme-outline-variant: rgba(var(--palette-grey-1000-rgb), 0.06);
			--theme-inverse-outline: rgba(var(--palette-grey-50-rgb), 0.12);
			--theme-inverse-outline-variant: rgba(var(--palette-grey-50-rgb), 0.06);
			--theme-outline-inverse-outline-variant: rgba(230, 234, 240, 0.06);
			--theme-outline-outline-variant: rgba(33, 34, 38, 0.06);
			--theme-primary-primary: var(--theme-surface-on-surface);
			--theme-primary-on-primary: var(--theme-surface-surface);
			--theme-tonal-tonal: var(--theme-surface-surface-container);
			--theme-tonal-on-tonal: var(--theme-surface-on-surface);
			--theme-outlined-outlined: var(--theme-surface-surface-transparent);
			--theme-outlined-on-outlined: var(--theme-surface-on-surface);
			--theme-protected-protected: var(--theme-surface-surface-container);
			--theme-protected-on-protected: var(--theme-surface-on-surface);
			--theme-text-text: var(--theme-surface-surface-transparent);
			--theme-text-on-text: var(--theme-surface-on-surface);
			--theme-text-link-states-enabled: var(--theme-surface-on-surface-variant);
			--theme-text-link-states-hovered: var(--palette-grey-1000);
			--theme-text-link-states-focused: var(--palette-grey-1100);
			--theme-text-link-states-pressed: var(--palette-grey-1000);
			--theme-text-link-states-disabled: #6a6a71;
			--theme-button-states-primary-enabled: var(--theme-primary-primary);
			--theme-button-states-primary-disabled: var(--palette-grey-10);
			--theme-button-states-primary-hovered: var(--palette-grey-900);
			--theme-button-states-primary-pressed: rgba(
				var(--palette-grey-50-rgb),
				0.12
			);
			--theme-button-states-primary-focused: rgba(var(--palette-grey-50-rgb), 0.2);
			--theme-button-states-primary-on-disabled: rgba(
				var(--palette-grey-1000-rgb),
				0.2
			);
			--theme-secondary-button: rgba(var(--palette-grey-400-rgb), 0.1);
			--theme-button-secondary-hover: var(--palette-grey-15);
			--theme-button-secondary-inverse-hover: rgba(
				var(--palette-grey-600-rgb),
				0.3
			);
			--theme-button-states-tonal-enabled: var(--theme-tonal-tonal);
			--theme-button-states-tonal-disabled: var(--palette-grey-10);
			--theme-button-states-protected-enabled: var(--theme-protected-protected);
			--theme-button-states-protected-hovered: var(--palette-grey-20);
			--theme-button-states-protected-disabled: var(--palette-grey-100);
			--theme-button-states-outlined-enabled: var(--theme-outlined-outlined);
			--theme-button-states-disabled: var(--palette-grey-100);
			--theme-button-states-on-disabled: #6a6a71;
			--theme-button-states-hovered: rgba(var(--palette-grey-1000-rgb), 0.04);
			--theme-button-states-pressed: rgba(var(--palette-grey-1000-rgb), 0.06);
			--theme-button-states-focused: rgba(var(--palette-grey-1000-rgb), 0.12);
			--theme-button-states-disabled-transparent: rgba(
				var(--palette-grey-50-rgb),
				0
			);
			--theme-nav-button: rgba(var(--palette-grey-400-rgb), 0.09);
			--theme-nav-button-hover: rgba(var(--palette-grey-400-rgb), 0.2);
			--divider: var(--theme-outline-outline-variant);
		}
	}

	@layer animations {
		:root {
			--ease-in-quad: cubic-bezier(0.55, 0.085, 0.68, 0.53);
			--ease-in-cubic: cubic-bezier(0.55, 0.055, 0.675, 0.19);
			--ease-in-quart: cubic-bezier(0.895, 0.03, 0.685, 0.22);
			--ease-in-quint: cubic-bezier(0.755, 0.05, 0.855, 0.06);
			--ease-in-expo: cubic-bezier(0.95, 0.05, 0.795, 0.035);
			--ease-in-circ: cubic-bezier(0.6, 0.04, 0.98, 0.335);
			--ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
			--ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
			--ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
			--ease-out-quint: cubic-bezier(0.23, 1, 0.32, 1);
			--ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
			--ease-out-circ: cubic-bezier(0.075, 0.82, 0.165, 1);
			--ease-in-out-quad: cubic-bezier(0.455, 0.03, 0.515, 0.955);
			--ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
			--ease-in-out-quart: cubic-bezier(0.77, 0, 0.175, 1);
			--ease-in-out-quint: cubic-bezier(0.86, 0, 0.07, 1);
			--ease-in-out-expo: cubic-bezier(1, 0, 0, 1);
			--ease-in-out-circ: cubic-bezier(0.785, 0.135, 0.15, 0.86);
			--ease-out-back: cubic-bezier(0.34, 1.85, 0.64, 1);
		}
	}
}





@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

    h1 {
        font-size: 1.4rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    p, span, li {
        font-size: 0.9rem;
    }
}


.cta {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* موبایل */
@media (max-width: 768px) {
    .cta {
        flex-direction: column;
        align-items: stretch;
    }
}


.install-steps {
    margin-top: 24px;
    padding: 16px;
    border-radius: 12px;
    background: #f7f7f7;
    font-size: 0.95rem;
	direction: rtl;
}

.install-steps h3 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.install-steps ol {
    padding-right: 18px; /* برای فارسی */
}

.install-steps li {
    margin-bottom: 8px;
    line-height: 1.8;
}

/* موبایل */
@media (max-width: 768px) {
    .install-steps {
        font-size: 0.9rem;
    }
}