/* deepthought.nz */

:root {
	--blue: #0094d5;
	--blue-deep: #0071a6;
	--ink: #0d1b2a;
	--ink-soft: #4a5868;
	--paper: #ffffff;
	--paper-alt: #f3f7fa;
	--line: #dde5ec;
	--pink: #ec1a77;
	--purple: #5f259f;

	--font: "Saira", system-ui, sans-serif;
	--wide: 125;
	--radius: 18px;
	--gap: clamp(12px, 1.6vw, 20px);
	--header-h: 72px;
}

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

:focus-visible {
	outline: 2px solid var(--blue);
	outline-offset: 3px;
}
.site-header :focus-visible, .hero :focus-visible, .contact :focus-visible, .site-footer :focus-visible, .lightbox :focus-visible {
	outline-color: #5cc4f2;
}
.site-header.is-scrolled :focus-visible {
	outline-color: var(--blue-deep);
}

.skip-link {
	position: absolute;
	top: -100px;
	left: 16px;
	z-index: 100;
	padding: 10px 18px;
	background: var(--blue-deep);
	color: #fff;
	font-weight: 600;
	border-radius: 8px;
	text-decoration: none;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
	transition: top 0.2s ease;
}
.skip-link:focus {
	top: 16px;
}

html {
	scroll-behavior: smooth;
	scroll-padding-top: var(--header-h);
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	font-family: var(--font);
	font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
	line-height: 1.7;
	color: var(--ink);
	background: var(--paper);
	-webkit-font-smoothing: antialiased;
}

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

a { color: var(--blue-deep); }

h1, h2, h3 {
	font-weight: 500;
	font-stretch: 125%;
	font-variation-settings: "wdth" var(--wide);
	line-height: 1.1;
	letter-spacing: -0.01em;
	margin: 0 0 0.6em;
}

h2 { font-size: clamp(2rem, 1.5rem + 2vw, 3rem); }

p { margin: 0 0 1.1em; }

.container {
	width: min(1200px, 100% - 32px);
	margin-inline: auto;
}

.eyebrow {
	font-size: 0.8rem;
	font-weight: 600;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--blue);
	margin-bottom: 0.75rem;
}

/* Wordmark — the SVG logo used as a mask so it takes the text colour */

.wordmark {
	display: inline-block;
	width: 150px;
	aspect-ratio: 4080 / 560;
	color: inherit;
	background-color: currentColor;
	-webkit-mask: url("../../images/deepthought-logo.svg") center / contain no-repeat;
	mask: url("../../images/deepthought-logo.svg") center / contain no-repeat;
}

/* Buttons */

.button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5em;
	padding: 0.85em 1.6em;
	border-radius: 999px;
	border: 2px solid transparent;
	font: inherit;
	font-weight: 600;
	font-size: 0.95rem;
	letter-spacing: 0.02em;
	text-decoration: none;
	cursor: pointer;
	transition: transform 0.2s, background-color 0.2s, color 0.2s, border-color 0.2s;
}
.button:hover { transform: translateY(-2px); }
.button-light { background: #fff; color: var(--blue-deep); }
.button-ghost { border-color: rgba(255, 255, 255, 0.6); color: #fff; }
.button-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); }
.button-primary { background: var(--blue); color: #fff; }
.button-primary:hover { background: var(--blue-deep); }
.button:disabled { opacity: 0.6; cursor: wait; transform: none; }

/* Header */

.site-header {
	position: fixed;
	inset: 0 0 auto;
	z-index: 50;
	height: var(--header-h);
	color: #fff;
	transition: background-color 0.3s, color 0.3s, box-shadow 0.3s;
}
.site-header.is-scrolled {
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	color: var(--ink);
	box-shadow: 0 1px 0 var(--line);
}
.header-inner {
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.site-nav { display: flex; align-items: center; gap: 2rem; }
.site-nav a {
	color: inherit;
	text-decoration: none;
	font-weight: 500;
	font-size: 0.95rem;
	opacity: 0.85;
	transition: opacity 0.2s;
}
.site-nav a:hover, .site-nav a.is-active { opacity: 1; }
.site-nav .nav-cta {
	opacity: 1;
	padding: 0.45em 1.2em;
	border: 2px solid currentColor;
	border-radius: 999px;
}

.nav-toggle {
	display: none;
	width: 44px;
	height: 44px;
	padding: 0;
	border: 0;
	background: none;
	color: inherit;
	cursor: pointer;
	position: relative;
}
.nav-toggle span {
	position: absolute;
	left: 11px;
	right: 11px;
	height: 2px;
	background: currentColor;
	transition: transform 0.25s;
}
.nav-toggle span:first-child { top: 17px; }
.nav-toggle span:last-child { top: 25px; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* Hero */

.hero {
	min-height: 100svh;
	display: flex;
	align-items: center;
	padding: calc(var(--header-h) + 40px) 0 80px;
	color: #fff;
	background:
		radial-gradient(1200px 600px at 85% 15%, rgba(255, 255, 255, 0.16), transparent 60%),
		radial-gradient(900px 700px at 0% 100%, rgba(0, 60, 110, 0.35), transparent 60%),
		var(--blue);
	position: relative;
	overflow: hidden;
}
.hero::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image: radial-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px);
	background-size: 28px 28px;
	mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
	-webkit-mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
	pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-mark { margin: 0 0 clamp(24px, 3.5vw, 48px); }
.hero-mark img { width: clamp(300px, 65vw, 940px); max-width: 100%; }
.hero-lede {
	max-width: 36ch;
	font-size: clamp(1.15rem, 1rem + 0.8vw, 1.6rem);
	font-weight: 300;
	line-height: 1.5;
	margin-bottom: 2.25rem;
	opacity: 0.95;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Sections */

.section { padding: clamp(72px, 10vw, 140px) 0; }

.about-grid {
	display: grid;
	grid-template-columns: 1.05fr 1fr;
	gap: clamp(32px, 6vw, 88px);
	align-items: center;
}
.about-photo {
	margin: 0;
	border-radius: var(--radius);
	overflow: hidden;
	aspect-ratio: 4 / 5;
	box-shadow: 0 30px 60px -30px rgba(13, 27, 42, 0.45);
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 38% center; }
.about-copy p:not(.eyebrow) { color: var(--ink-soft); }

.venture { background: var(--paper-alt); }
.venture-grid {
	display: grid;
	grid-template-columns: 1fr 1.25fr;
	gap: clamp(32px, 5vw, 72px);
	align-items: start;
}
.venture-copy p:not(.eyebrow) { color: var(--ink-soft); }
.powershop .eyebrow { color: var(--pink); }

.flux { background: var(--paper); }
.flux .venture-grid { grid-template-columns: 1.25fr 1fr; }
.flux .gallery { order: -1; }
.flux-card {
	color: #fff;
	padding: clamp(28px, 4vw, 48px);
	/* skyline fills the bottom 22.5% of the image's width; keep text clear of it */
	padding-bottom: calc(22.5% + 24px);
	border-radius: var(--radius);
	background: var(--purple) url("../../images/gallery/fulls/ff-background.png") center bottom / 100% auto no-repeat;
}
.flux-card .eyebrow { color: #e5c8ff; }
.flux-card p:not(.eyebrow) { color: rgba(255, 255, 255, 0.88); }

/* Galleries */

.gallery { display: grid; gap: var(--gap); }
.venture .gallery { position: sticky; top: calc(var(--header-h) + 24px); }
.tile {
	display: block;
	border-radius: var(--radius);
	overflow: hidden;
	background: #fff;
	box-shadow: 0 1px 2px rgba(13, 27, 42, 0.06), 0 12px 30px -18px rgba(13, 27, 42, 0.35);
	cursor: zoom-in;
	aspect-ratio: 1;
}
.tile img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.tile:hover img { transform: scale(1.04); }
.tile-plain { border: 1px solid var(--line); box-shadow: none; }
.tile-plain img { object-fit: contain; padding: 14%; }

.gallery-powershop {
	grid-template-columns: repeat(4, 1fr);
	grid-template-areas:
		"control control winky kim"
		"mobile  mobile  p2p   kim";
}
.t-control { grid-area: control; aspect-ratio: auto; }
.t-winky { grid-area: winky; }
.t-kim { grid-area: kim; aspect-ratio: auto; }
.t-mobile { grid-area: mobile; aspect-ratio: auto; }
.t-p2p { grid-area: p2p; }

.gallery-flux { grid-template-columns: repeat(3, 1fr); }
.t-boldly { grid-column: 1 / -1; aspect-ratio: 5 / 3; }

/* Contact */

.contact { background: var(--ink); color: #fff; }
.contact .eyebrow { color: #5cc4f2; }
.contact-intro p:not(.eyebrow) { color: rgba(255, 255, 255, 0.75); }
.contact-grid {
	display: grid;
	grid-template-columns: 1fr 1.3fr;
	gap: clamp(32px, 6vw, 88px);
	align-items: start;
}
.linkedin {
	display: inline-flex;
	align-items: center;
	gap: 0.6em;
	margin-top: 0.5rem;
	color: #fff;
	font-weight: 500;
	text-decoration: none;
	opacity: 0.85;
	transition: opacity 0.2s;
}
.linkedin:hover { opacity: 1; }
.linkedin svg { width: 22px; height: 22px; }

.contact-form {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	padding: clamp(24px, 3.5vw, 40px);
	border-radius: var(--radius);
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid rgba(255, 255, 255, 0.1);
}
.field-full { grid-column: 1 / -1; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field label {
	display: block;
	font-size: 0.8rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	margin-bottom: 0.5rem;
	color: rgba(255, 255, 255, 0.7);
}
.field input, .field textarea {
	width: 100%;
	font: inherit;
	color: #fff;
	background: rgba(255, 255, 255, 0.06);
	border: 1px solid rgba(255, 255, 255, 0.18);
	border-radius: 10px;
	padding: 0.75em 0.9em;
	transition: border-color 0.2s, background-color 0.2s;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field textarea:focus {
	outline: none;
	border-color: var(--blue);
	background: rgba(255, 255, 255, 0.09);
}
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.form-status { margin: 0; color: rgba(255, 255, 255, 0.8); }

/* Footer */

.site-footer {
	background: #08121d;
	color: rgba(255, 255, 255, 0.78);
	padding: 56px 0;
	font-size: 0.9rem;
}
.site-footer a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.site-footer a:hover { color: #5cc4f2; }
.footer-grid {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 32px;
}
.wordmark-small { color: #fff; width: 138px; margin-bottom: 0.75rem; }
.credits { max-width: 520px; }
.credits h3 {
	font-size: 0.8rem;
	font-weight: 600;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: #fff;
	margin-bottom: 0.75rem;
}
.credits p { margin-bottom: 0.5em; color: rgba(255, 255, 255, 0.78); }

/* Lightbox */

.lightbox {
	padding: 0;
	border: 0;
	background: transparent;
	max-width: min(92vw, 1200px);
	max-height: 92vh;
	overflow: visible;
}
.lightbox::backdrop { background: rgba(8, 18, 29, 0.9); backdrop-filter: blur(6px); }
.lightbox-content {
	display: flex;
	flex-direction: column;
	align-items: center;
	position: relative;
}
.lightbox img {
	max-width: min(86vw, 1100px);
	max-height: calc(85vh - 50px);
	border-radius: 12px;
	background: #fff;
	box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
	user-select: none;
}
.lightbox-caption {
	margin: 14px 0 0;
	color: rgba(255, 255, 255, 0.88);
	font-size: 0.95rem;
	text-align: center;
	max-width: 60ch;
}
.lightbox-close {
	position: absolute;
	top: -46px;
	right: 0;
	width: 40px;
	height: 40px;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.18);
	color: #fff;
	font-size: 1.5rem;
	line-height: 1;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background-color 0.2s, transform 0.2s;
}
.lightbox-close:hover {
	background: rgba(255, 255, 255, 0.3);
	transform: scale(1.05);
}

.lightbox-nav {
	position: fixed;
	top: 50%;
	transform: translateY(-50%);
	width: 48px;
	height: 48px;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.22);
	color: #fff;
	font-size: 1.3rem;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: background-color 0.2s, transform 0.2s;
	z-index: 10;
}
.lightbox-nav:hover {
	background: rgba(255, 255, 255, 0.38);
	transform: translateY(-50%) scale(1.08);
}
.lightbox-prev { left: clamp(12px, 3vw, 36px); }
.lightbox-next { right: clamp(12px, 3vw, 36px); }

@media (max-width: 760px) {
	.lightbox-nav {
		width: 40px;
		height: 40px;
		font-size: 1.1rem;
		background: rgba(8, 18, 29, 0.85);
	}
	.lightbox-prev { left: 8px; }
	.lightbox-next { right: 8px; }
	.lightbox-close { top: -42px; right: 4px; }
}

/* Scroll reveal (enabled by JS) */

.js .reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.js .reveal { opacity: 1; transform: none; transition: none; }
	.tile img, .button { transition: none; }
}

/* Responsive */

@media (max-width: 960px) {
	.about-grid, .venture-grid, .flux .venture-grid, .contact-grid { grid-template-columns: 1fr; }
	.flux .gallery { order: 0; }
	.venture .gallery { position: static; }
	.about-photo { aspect-ratio: 4 / 3; max-width: 640px; }
}

@media (max-width: 760px) {
	.nav-toggle { display: block; }
	.site-nav {
		position: fixed;
		top: var(--header-h);
		left: 0;
		right: 0;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		padding: 8px 16px 20px;
		background: #fff;
		color: var(--ink);
		box-shadow: 0 16px 30px -20px rgba(13, 27, 42, 0.4);
		transform: translateY(-8px);
		opacity: 0;
		visibility: hidden;
		transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
	}
	.site-nav.is-open { opacity: 1; transform: none; visibility: visible; }
	.site-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
	.site-nav .nav-cta { border: 0; border-radius: 0; padding: 14px 0; color: var(--blue-deep); }
	.site-header.menu-open { background: #fff; color: var(--ink); }

	.gallery-powershop {
		grid-template-columns: 1fr 1fr;
		grid-template-areas:
			"control control"
			"winky   kim"
			"p2p     kim"
			"mobile  mobile";
	}
	.t-control, .t-mobile { aspect-ratio: 2 / 1; }
	.contact-form { grid-template-columns: 1fr; }
}