/* ==========================================================================
   Aldo Monjaras — Product Systems + Applied Technology
   Brand system: Paper / Ink / Agave / Deep Agave / Forest / Clay / Stone
   ========================================================================== */

:root {
	/* Brand colour tokens */
	--paper: #F4F0E6;
	--paper-light: #FBF8F1;
	--ink: #17211C;
	--agave: #6F826A;
	--deep: #355744;
	--forest: #223A2E;
	--clay: #B56F4D;
	--stone: #B8B1A6;

	/* Derived */
	--ink-70: rgba(23, 33, 28, 0.72);
	--ink-50: rgba(23, 33, 28, 0.52);
	--ink-15: rgba(23, 33, 28, 0.12);
	--ink-08: rgba(23, 33, 28, 0.08);
	--paper-70: rgba(244, 240, 230, 0.72);
	--paper-50: rgba(244, 240, 230, 0.5);
	--paper-15: rgba(244, 240, 230, 0.15);
	--agave-15: rgba(111, 130, 106, 0.16);
	--clay-15: rgba(181, 111, 77, 0.14);
	--focus-ring: var(--clay);

	/* Type */
	--font-sans: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	--font-serif: "Newsreader", Georgia, serif;
	--font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

	/* Layout */
	--content-max: 1240px;
	--gutter: 24px;
	--radius: 2px;

	/* Motion */
	--ease: cubic-bezier(0.22, 0.61, 0.36, 1);
	--dur-fast: 150ms;
	--dur-med: 260ms;
	--dur-slow: 320ms;

	color-scheme: light;
}

@media (min-width: 768px) {
	:root { --gutter: 48px; }
}

@media (min-width: 1200px) {
	:root { --gutter: 72px; }
}

/* ==========================================================================
   Reset
   ========================================================================== */

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

html {
	-webkit-text-size-adjust: 100%;
	scroll-behavior: smooth;
}

body {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--font-sans);
	font-size: 17px;
	line-height: 1.6;
	font-weight: 400;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

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

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

ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, blockquote, figure { margin: 0; }

button {
	font: inherit;
	color: inherit;
	background: none;
	border: 0;
	cursor: pointer;
	padding: 0;
}

::selection { background: var(--deep); color: var(--paper-light); }

:focus { outline: none; }
:focus-visible {
	outline: 2px solid var(--focus-ring);
	outline-offset: 3px;
	border-radius: 1px;
}

@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;
		scroll-behavior: auto !important;
	}
}

.visually-hidden {
	position: absolute;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	white-space: nowrap;
	border: 0; padding: 0; margin: -1px;
}

.skip-link {
	position: fixed;
	top: -100%;
	left: 16px;
	z-index: 200;
	background: var(--ink);
	color: var(--paper);
	padding: 12px 20px;
	font-family: var(--font-mono);
	font-size: 13px;
	letter-spacing: 0.04em;
	transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: 16px; }

/* ==========================================================================
   Type scale
   ========================================================================== */

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; }

h1 { font-size: clamp(2.4rem, 5vw + 1rem, 4.4rem); line-height: 1.02; }
h2 { font-size: clamp(1.9rem, 2.6vw + 1rem, 2.6rem); line-height: 1.1; }
h3 { font-size: clamp(1.1rem, 1vw + 0.8rem, 1.3rem); line-height: 1.25; }

em {
	font-family: var(--font-serif);
	font-style: italic;
	font-weight: 500;
}

.eyebrow,
.section-label,
.case__label,
.case__number,
.steps__number,
.cap-card__number,
.note-card__number,
.case__framework,
.case__artifact-label,
.brand__tagline,
.hero__index-label,
.contact__item h3 {
	font-family: var(--font-mono);
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.wrap {
	max-width: var(--content-max);
	margin-inline: auto;
	padding-inline: var(--gutter);
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */

[data-reveal] {
	opacity: 0;
	transform: translateY(14px);
	transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible {
	opacity: 1;
	transform: none;
}
@media (prefers-reduced-motion: reduce) {
	[data-reveal] { opacity: 1; transform: none; }
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--paper);
	border-bottom: 1px solid transparent;
	transition: border-color var(--dur-med) var(--ease), background var(--dur-med) var(--ease);
}
.site-header.is-scrolled {
	border-bottom-color: var(--ink-15);
	background: var(--paper);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 16px;
	padding-block: 18px;
}

.brand {
	display: flex;
	align-items: center;
	gap: 12px;
	min-width: 0;
}

.brand__mark {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 34px;
	height: 34px;
	border: 1px solid var(--ink);
	border-radius: 50%;
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.02em;
	flex-shrink: 0;
}

.brand__type {
	display: flex;
	flex-direction: column;
	line-height: 1.15;
	min-width: 0;
}

.brand__name {
	font-weight: 700;
	font-size: 15px;
	letter-spacing: -0.01em;
	white-space: nowrap;
}

.brand__tagline {
	font-size: 9.5px;
	color: var(--ink-50);
	white-space: nowrap;
	display: none;
}

@media (min-width: 640px) {
	.brand__tagline { display: block; }
}

.nav-toggle {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 8px;
	margin: -8px;
}

.nav-toggle__box {
	width: 20px;
	height: 14px;
	position: relative;
}

.nav-toggle__line {
	position: absolute;
	left: 0;
	width: 100%;
	height: 1.5px;
	background: var(--ink);
	transition: transform var(--dur-med) var(--ease), top var(--dur-med) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle__line:first-child { top: 0; }
.nav-toggle__line:last-child { top: 100%; transform: translateY(-100%); }

.nav-toggle[aria-expanded="true"] .nav-toggle__line:first-child {
	top: 50%;
	transform: translateY(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__line:last-child {
	top: 50%;
	transform: translateY(-50%) rotate(-45deg);
}

@media (min-width: 900px) {
	.nav-toggle { display: none; }
}

.primary-nav {
	position: fixed;
	inset: 65px 0 0 0;
	background: var(--paper);
	transform: translateY(-8px);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), visibility var(--dur-med);
	overflow-y: auto;
}
.primary-nav.is-open {
	opacity: 1;
	transform: none;
	visibility: visible;
	pointer-events: auto;
}
.primary-nav ul {
	display: flex;
	flex-direction: column;
	padding: 32px var(--gutter) 48px;
	gap: 4px;
}
.primary-nav a {
	display: block;
	padding: 14px 4px;
	font-size: 1.6rem;
	font-family: var(--font-serif);
	font-weight: 500;
	border-bottom: 1px solid var(--ink-08);
}
.primary-nav .nav-cta { color: var(--deep); }

@media (min-width: 900px) {
	.primary-nav {
		position: static;
		inset: auto;
		background: none;
		transform: none;
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
		overflow: visible;
	}
	.primary-nav ul {
		flex-direction: row;
		align-items: center;
		padding: 0;
		gap: 30px;
	}
	.primary-nav a {
		padding: 4px 0;
		font-size: 13px;
		font-family: var(--font-mono);
		text-transform: uppercase;
		letter-spacing: 0.07em;
		font-weight: 500;
		border-bottom: 0;
		position: relative;
		color: var(--ink-70);
		transition: color var(--dur-fast) var(--ease);
	}
	.primary-nav a::after {
		content: "";
		position: absolute;
		left: 0; right: 100%;
		bottom: -4px;
		height: 1px;
		background: var(--deep);
		transition: right var(--dur-med) var(--ease);
	}
	.primary-nav a:hover,
	.primary-nav a[aria-current="true"] { color: var(--ink); }
	.primary-nav a:hover::after,
	.primary-nav a[aria-current="true"]::after { right: 0; }
	.primary-nav .nav-cta {
		color: var(--paper);
		background: var(--deep);
		padding: 9px 18px;
		border-radius: 999px;
	}
	.primary-nav .nav-cta::after { display: none; }
	.primary-nav .nav-cta:hover { background: var(--forest); color: var(--paper); }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.button {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	padding: 14px 26px;
	font-family: var(--font-sans);
	font-size: 15px;
	font-weight: 600;
	border-radius: 999px;
	border: 1px solid transparent;
	transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.button .icon { width: 16px; height: 16px; transition: transform var(--dur-fast) var(--ease); }

.button--primary {
	background: var(--deep);
	color: var(--paper-light);
}
.button--primary:hover {
	background: var(--forest);
	transform: translateY(-1px);
}
.button--primary:hover .icon { transform: translateX(3px); }

.button--ghost {
	border-color: var(--ink-15);
	color: var(--ink);
}
.button--ghost:hover {
	border-color: var(--ink);
	background: var(--ink-08);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
	padding-top: clamp(64px, 10vw, 120px);
	padding-bottom: clamp(48px, 6vw, 72px);
}

.hero__grid {
	display: grid;
	gap: 56px;
	grid-template-columns: 1fr;
}

@media (min-width: 960px) {
	.hero__grid {
		grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
		align-items: end;
	}
}

.eyebrow {
	font-size: 12px;
	color: var(--deep);
	margin-bottom: 22px;
}
.eyebrow::before {
	content: "";
	display: inline-block;
	width: 22px;
	height: 1px;
	background: var(--clay);
	margin-right: 12px;
	vertical-align: middle;
}

.hero__headline {
	max-width: 15ch;
	color: var(--ink);
}

.hero__sub {
	margin-top: 26px;
	max-width: 46ch;
	font-size: clamp(17px, 1.1vw + 12px, 20px);
	color: var(--ink-70);
	line-height: 1.6;
}

.hero__core {
	margin-top: 18px;
	max-width: 40ch;
	font-family: var(--font-serif);
	font-style: italic;
	font-size: clamp(19px, 1.3vw + 13px, 23px);
	color: var(--deep);
	line-height: 1.45;
}

.hero__actions {
	margin-top: 40px;
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
}

.hero__index {
	border-top: 1px solid var(--ink-15);
	padding-top: 22px;
}

.hero__index-label {
	display: block;
	font-size: 11px;
	color: var(--ink-50);
	margin-bottom: 16px;
}

.hero__index-list li {
	display: flex;
	align-items: baseline;
	gap: 14px;
	padding: 10px 0;
	border-bottom: 1px dashed var(--ink-15);
	font-size: 15px;
	color: var(--ink-70);
}
.hero__index-list li:last-child { border-bottom: 0; }

.hero__index-list .num {
	font-family: var(--font-mono);
	font-size: 12px;
	color: var(--clay);
	flex-shrink: 0;
}

.hero__rule {
	margin-top: clamp(48px, 8vw, 96px);
	border-top: 1px solid var(--ink-15);
	max-width: var(--content-max);
	margin-inline: auto;
	padding: 18px var(--gutter) 0;
	display: flex;
	gap: 28px;
	flex-wrap: wrap;
	font-family: var(--font-mono);
	font-size: 11px;
	text-transform: uppercase;
	letter-spacing: 0.09em;
	color: var(--ink-50);
}

/* ==========================================================================
   Section heads (shared)
   ========================================================================== */

.section-head {
	max-width: 62ch;
	margin-bottom: clamp(40px, 6vw, 64px);
}

.section-label {
	font-size: 12px;
	color: var(--deep);
	margin-bottom: 16px;
}

.section-label--inverse { color: var(--clay); }

.section-dek {
	margin-top: 18px;
	font-size: 17px;
	color: var(--ink-70);
	max-width: 56ch;
}

section { padding-block: clamp(64px, 10vw, 112px); }

/* ==========================================================================
   Selected work
   ========================================================================== */

.work { background: var(--paper); }

.case-list {
	display: flex;
	flex-direction: column;
}

.case {
	padding-block: clamp(40px, 6vw, 64px);
	border-top: 1px solid var(--ink-15);
	display: grid;
	gap: 32px;
	grid-template-columns: 1fr;
}
.case:last-child { border-bottom: 1px solid var(--ink-15); }

@media (min-width: 900px) {
	.case {
		grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
		gap: 56px;
	}
}

.case__meta { min-width: 0; }

.case__number {
	display: block;
	font-size: 13px;
	color: var(--clay);
	margin-bottom: 18px;
}

.case__label {
	font-size: 11px;
	color: var(--ink-50);
	margin-bottom: 10px;
}

.case__title {
	margin-bottom: 14px;
}

.case__summary {
	color: var(--ink-70);
	font-size: 16px;
	max-width: 34ch;
}

.case__tagline {
	margin-top: 12px;
	font-family: var(--font-serif);
	font-style: italic;
	font-size: 20px;
	color: var(--deep);
}

.case__role {
	margin-top: 22px;
	padding-top: 18px;
	border-top: 1px solid var(--ink-15);
	font-family: var(--font-mono);
	font-size: 11.5px;
	line-height: 1.7;
	color: var(--ink-50);
	max-width: 32ch;
}
.case__role span {
	display: block;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--clay);
	margin-bottom: 6px;
}

.case__link {
	margin-top: 22px;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	font-weight: 600;
	color: var(--deep);
	border-bottom: 1px solid var(--ink-15);
	padding-bottom: 3px;
	transition: border-color var(--dur-fast) var(--ease);
}
.case__link .icon { width: 15px; height: 15px; transition: transform var(--dur-fast) var(--ease); }
.case__link:hover { border-color: var(--deep); }
.case__link:hover .icon { transform: translateX(3px); }

.case__fields {
	display: flex;
	flex-direction: column;
	gap: 22px;
	max-width: 62ch;
}

.case__field dt {
	font-size: 10.5px;
	color: var(--clay);
	margin-bottom: 8px;
}

.case__field dd {
	margin: 0;
	color: var(--ink-70);
	font-size: 15.5px;
	line-height: 1.65;
}

.case__media {
	margin: 28px 0 0;
	max-width: 820px;
	position: relative;
}

.case__media picture,
.case__media > img {
	display: block;
	border: 1px solid var(--ink-15);
	overflow: hidden;
	background: var(--paper-light);
}
.case__media img {
	width: 100%;
	height: auto;
	display: block;
}
.case__media figcaption {
	margin-top: 12px;
	font-family: var(--font-mono);
	font-size: 10.5px;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: var(--ink-50);
}

.case__artifact {
	margin-top: 24px;
	position: relative;
	min-height: 200px;
	border: 1px dashed var(--ink-15);
	display: flex;
	align-items: center;
	justify-content: center;
	background: repeating-linear-gradient(135deg, transparent, transparent 11px, var(--ink-08) 11px, var(--ink-08) 12px);
}

.case__artifact-corner {
	position: absolute;
	top: 12px; left: 12px;
	width: 10px; height: 10px;
	border-top: 1px solid var(--agave);
	border-left: 1px solid var(--agave);
}
.case__artifact-corner::after {
	content: "";
	position: absolute;
	top: 0; left: 0;
	width: 10px; height: 10px;
	border-bottom: 1px solid var(--agave);
	border-right: 1px solid var(--agave);
	transform: translate(178px, 178px);
}
@media (min-width: 900px) {
	.case__artifact-corner::after { transform: translate(calc(100% + 0px), 178px); }
}

.case__artifact-label {
	font-size: 10.5px;
	color: var(--ink-50);
	background: var(--paper);
	padding: 6px 12px;
	border: 1px solid var(--ink-15);
}

/* ==========================================================================
   Approach / process (dark section)
   ========================================================================== */

.approach {
	background: var(--forest);
	color: var(--paper);
}

.section-head--dark .section-label { color: var(--clay); }
.section-head--dark h2 { color: var(--paper); }
.section-head--dark .section-dek { color: var(--paper-70); }

.steps {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0;
	border-top: 1px solid var(--paper-15);
}

@media (min-width: 860px) {
	.steps {
		grid-template-columns: repeat(5, 1fr);
	}
}

.steps__item {
	padding: 28px 0;
	border-bottom: 1px solid var(--paper-15);
	position: relative;
}

@media (min-width: 860px) {
	.steps__item {
		padding: 8px 22px 8px 0;
		border-bottom: 0;
	}
	.steps__item:not(:last-child) {
		border-right: 1px solid var(--paper-15);
	}
}

.steps__number {
	display: block;
	font-size: 12px;
	color: var(--clay);
	margin-bottom: 16px;
}

.steps__title {
	color: var(--paper);
	margin-bottom: 10px;
}

.steps__desc {
	color: var(--paper-70);
	font-size: 15px;
	line-height: 1.55;
	max-width: 30ch;
}

.approach__schematic {
	margin-top: 48px;
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.06em;
	color: var(--paper-70);
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	text-transform: uppercase;
}
.approach__schematic span { color: var(--clay); }

/* ==========================================================================
   Capabilities
   ========================================================================== */

.capabilities { background: var(--paper-light); }

.cap-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1px;
	background: var(--ink-15);
	border: 1px solid var(--ink-15);
}

@media (min-width: 700px) {
	.cap-grid { grid-template-columns: repeat(2, 1fr); }
}

.cap-card {
	background: var(--paper-light);
	padding: clamp(28px, 3vw, 40px);
	transition: background var(--dur-med) var(--ease);
}
.cap-card:hover { background: var(--agave-15); }

.cap-card__number {
	display: block;
	font-size: 12px;
	color: var(--clay);
	margin-bottom: 18px;
}

.cap-card__title { margin-bottom: 12px; }

.cap-card__list {
	font-family: var(--font-mono);
	font-size: 12.5px;
	letter-spacing: 0.02em;
	color: var(--ink-70);
	text-transform: none;
}

/* ==========================================================================
   Notes / perspective
   ========================================================================== */

.notes { background: var(--paper); }

.notes-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 28px;
}

@media (min-width: 760px) {
	.notes-grid { grid-template-columns: repeat(3, 1fr); }
}

.note-card {
	padding-top: 22px;
	border-top: 1px solid var(--ink-15);
}

.note-card__number {
	display: block;
	font-size: 12px;
	color: var(--clay);
	margin-bottom: 16px;
}

.note-card__title { margin-bottom: 10px; }

.note-card__desc {
	color: var(--ink-50);
	font-style: italic;
	font-family: var(--font-serif);
	font-size: 15.5px;
	line-height: 1.55;
}

/* ==========================================================================
   About
   ========================================================================== */

.about { background: var(--paper-light); }

.about__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 44px;
	align-items: start;
}

@media (min-width: 860px) {
	.about__grid {
		grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
		gap: 72px;
	}
}

.about__portrait {
	position: relative;
	border: 1px solid var(--ink-15);
	max-width: 260px;
}
.about__portrait::before {
	content: "";
	position: absolute;
	inset: 14px -14px -14px 14px;
	border: 1px solid var(--agave);
	z-index: -1;
}
.about__portrait img { filter: grayscale(14%) contrast(1.02); }

.about__content .section-label { margin-bottom: 16px; }
.about__content h2 { margin-bottom: 28px; max-width: 18ch; }

.about__quote {
	font-family: var(--font-serif);
	font-style: italic;
	font-size: clamp(19px, 1.4vw + 13px, 23px);
	line-height: 1.5;
	color: var(--deep);
	max-width: 44ch;
	padding-left: 20px;
	border-left: 2px solid var(--clay);
	margin-bottom: 30px;
}

.about__body {
	max-width: 54ch;
	color: var(--ink-70);
	font-size: 16.5px;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
	background: var(--forest);
	color: var(--paper);
}

.contact__headline {
	max-width: 20ch;
	color: var(--paper);
	margin-bottom: clamp(48px, 7vw, 80px);
}
.contact__headline em { color: var(--paper); }

.contact__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 28px;
	border-top: 1px solid var(--paper-15);
	padding-top: 36px;
}

@media (min-width: 700px) {
	.contact__grid { grid-template-columns: repeat(4, 1fr); }
}

.contact__item h3 {
	font-size: 11px;
	color: var(--clay);
	margin-bottom: 12px;
}

.contact__item a {
	font-size: 16px;
	color: var(--paper);
	border-bottom: 1px solid var(--paper-15);
	padding-bottom: 3px;
	transition: border-color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
	word-break: break-word;
}
.contact__item a:hover { border-color: var(--paper); }
.contact__item a[data-placeholder] { opacity: 0.6; font-style: italic; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
	background: var(--forest);
	color: var(--paper-70);
	border-top: 1px solid var(--paper-15);
}

.site-footer__inner {
	display: flex;
	align-items: center;
	gap: 16px;
	padding-block: 28px;
	font-size: 12.5px;
}

.site-footer .brand__mark {
	border-color: var(--paper-50);
	color: var(--paper);
}

/* ==========================================================================
   Responsive floor
   ========================================================================== */

@media (max-width: 359px) {
	:root { --gutter: 18px; }
}