/* ============================================================
   Isha Patro — Portfolio v4
   Horizontal board layout: column panels on a dark ground,
   year-scale career timeline, pixel portrait.
   ============================================================ */

:root {
	--bg: #111113;
	--panel: #1a1a1d;
	--card: #212124;
	--card-hover: #28282c;
	--text: #ececef;
	--text-soft: #9b9ba4;
	--text-faint: #66666e;
	--line: rgba(255, 255, 255, 0.07);
	--line-strong: rgba(255, 255, 255, 0.14);
	--green: #a4c465;
	--violet: #a78bfa;
	--amber: #ffb86b;
	--sans: "Inter", -apple-system, system-ui, sans-serif;
	--col-w: 372px;
	color-scheme: dark;
}

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

html,
body {
	height: 100%;
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: var(--sans);
	font-size: 0.92rem;
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
	display: flex;
	flex-direction: column;
	overflow: hidden;
}

::selection {
	background: var(--green);
	color: #15170f;
}

a {
	color: inherit;
}

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

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

/* ---------- skip link ---------- */
.skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	background: var(--text);
	color: var(--bg);
	padding: 0.6rem 1rem;
	z-index: 200;
	border-radius: 0 0 8px 0;
}

.skip-link:focus {
	left: 0;
}

/* ---------- topbar ---------- */
.topbar {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0.9rem 1.4rem;
}

.brand {
	font-size: 0.92rem;
	font-weight: 600;
}

.nav-arrows {
	display: flex;
	gap: 0.5rem;
}

.arrow {
	width: 40px;
	height: 32px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 8px;
	color: var(--text-soft);
	cursor: pointer;
	transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.arrow:hover {
	color: var(--text);
	background: var(--card);
	border-color: var(--line-strong);
}

/* ---------- board ---------- */
.board {
	flex: 1;
	display: flex;
	gap: 14px;
	padding: 0 1.4rem 1.4rem;
	overflow-x: auto;
	overflow-y: hidden;
	scroll-behavior: smooth;
	scrollbar-width: thin;
	scrollbar-color: var(--card) transparent;
}

.board::-webkit-scrollbar {
	height: 8px;
}

.board::-webkit-scrollbar-thumb {
	background: var(--card);
	border-radius: 4px;
}

/* ---------- columns ---------- */
.col {
	flex: 0 0 var(--col-w);
	display: flex;
	flex-direction: column;
	background: var(--panel);
	border: 1px solid var(--line);
	border-radius: 16px;
	overflow: hidden;
}

.col-about {
	flex-basis: 470px;
}

.col-career {
	flex-basis: 430px;
}

.col-title {
	flex-shrink: 0;
	font-size: 0.68rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--text-faint);
	padding: 1.1rem 1.25rem 0.9rem;
	border-bottom: 1px solid var(--line);
}

.col-subtitle {
	font-size: 0.68rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--text-faint);
	margin: 1.75rem 0 0.9rem;
}

.col-body {
	flex: 1;
	overflow-y: auto;
	padding: 1.25rem;
	scrollbar-width: thin;
	scrollbar-color: var(--card) transparent;
}

.col-body::-webkit-scrollbar {
	width: 6px;
}

.col-body::-webkit-scrollbar-thumb {
	background: var(--card);
	border-radius: 3px;
}

/* ---------- about column ---------- */
.pixel-wrap {
	position: relative;
	width: 100%;
	aspect-ratio: 1 / 1;
	border-radius: 10px;
	overflow: hidden;
	background: #140e1b;
	margin-bottom: 1.1rem;
}

.pixel-wrap canvas,
.pixel-wrap img {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.intro {
	font-size: 1.02rem;
	font-weight: 500;
	line-height: 1.5;
	letter-spacing: -0.01em;
	margin-bottom: 0.7rem;
}

.intro-sub {
	font-size: 0.86rem;
	font-weight: 500;
	color: var(--green);
	margin-bottom: 1.1rem;
}

.about-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1.6rem;
}

.action-btn {
	font-family: var(--sans);
	font-size: 0.78rem;
	font-weight: 500;
	color: var(--text);
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 8px;
	padding: 0.5rem 0.85rem;
	cursor: pointer;
	text-decoration: none;
	transition: background 0.15s, border-color 0.15s;
}

.action-btn:hover {
	background: var(--card-hover);
	border-color: var(--line-strong);
}

.facts {
	display: flex;
	flex-direction: column;
	gap: 1.2rem;
}

.fact dt {
	font-size: 0.66rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--text-faint);
	margin-bottom: 0.3rem;
}

.fact dd {
	font-size: 0.86rem;
	color: var(--text-soft);
}

.fact dd a {
	text-decoration: none;
	color: var(--text-soft);
}

.fact dd a:hover {
	color: var(--text);
}

.skill-group {
	margin-bottom: 1.2rem;
}

.skill-label {
	font-size: 0.66rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--text-faint);
	margin-bottom: 0.5rem;
}

.skill-pills {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
}

.skill-pills li {
	font-size: 0.74rem;
	font-weight: 500;
	color: var(--text-soft);
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 999px;
	padding: 0.32rem 0.7rem;
}

/* ---------- career timeline ---------- */
.timeline {
	position: relative;
	display: flex;
	gap: 12px;
	min-height: 1280px;
}

.tl-axis {
	position: relative;
	flex: 0 0 38px;
}

.tl-axis::after {
	content: "";
	position: absolute;
	top: 60px;
	bottom: 10px;
	right: 0;
	width: 1px;
	background: var(--line);
}

.tl-axis span {
	position: absolute;
	right: 8px;
	font-size: 0.68rem;
	font-weight: 500;
	color: var(--text-faint);
	transform: translateY(-50%);
}

.tl-canvas {
	position: relative;
	flex: 1;
}

.tl-card {
	position: absolute;
	left: 0;
	right: 0;
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 10px;
	padding: 0.95rem 1.05rem;
	overflow: hidden;
	transition: border-color 0.15s, background 0.15s;
}

.tl-card:hover {
	background: var(--card-hover);
	border-color: var(--line-strong);
	height: auto !important;
	min-height: var(--tl-h, auto);
	overflow: visible;
	z-index: 10;
	box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
}

.tl-card.lane-l {
	right: 47%;
}

.tl-card.lane-r {
	left: 56%;
}

.tl-card h3 {
	font-size: 0.84rem;
	font-weight: 600;
	line-height: 1.25;
}

.tl-org {
	font-size: 0.74rem;
	font-weight: 500;
	line-height: 1.4;
	color: var(--green);
	margin-top: 0.25rem;
}

.tl-card.edu .tl-org {
	color: var(--violet);
}

.tl-dates {
	font-size: 0.68rem;
	line-height: 1.4;
	color: var(--text-faint);
	margin-top: 0.15rem;
}

.tl-desc {
	font-size: 0.74rem;
	line-height: 1.55;
	color: var(--text-soft);
	margin-top: 0.6rem;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.lane-l .tl-desc {
	-webkit-line-clamp: 2;
}

.lane-r .tl-desc {
	-webkit-line-clamp: 3;
}

.tl-card.big .tl-desc {
	-webkit-line-clamp: 5;
}

.tl-card.tall .tl-desc {
	-webkit-line-clamp: 11;
}

.tl-card:hover .tl-desc {
	-webkit-line-clamp: unset;
	display: block;
	overflow: visible;
}

.tl-card.lane-l .tl-desc {
	display: none;
}

.tl-card.lane-l:hover .tl-desc {
	display: block;
}

.tl-marker {
	position: absolute;
	left: 0;
	right: 0;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 0.72rem;
	color: var(--text-soft);
	line-height: 1.4;
}

.tl-marker .dot {
	width: 7px;
	height: 7px;
	border-radius: 50%;
	background: var(--violet);
	flex-shrink: 0;
}

/* ---------- highlighted work ---------- */
.work-card {
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 12px;
	overflow: hidden;
	margin-bottom: 0.9rem;
	transition: border-color 0.15s;
}

.work-card:hover {
	border-color: var(--line-strong);
}

.work-media {
	display: block;
	background: #0c0c0e;
	border-bottom: 1px solid var(--line);
	aspect-ratio: 16 / 10;
}

.work-media img,
.work-media video {
	width: 100%;
	height: 100%;
	object-fit: contain;
}

.work-meta {
	display: flex;
	flex-direction: column;
	gap: 0.4rem;
	padding: 0.8rem 0.9rem 0;
}

.work-meta h3 {
	font-size: 0.86rem;
	font-weight: 600;
	line-height: 1.35;
}

.work-meta h3 a {
	text-decoration: none;
}

.work-meta h3 a:hover {
	color: var(--green);
}

.badge {
	align-self: flex-start;
	font-size: 0.64rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--text-soft);
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid var(--line);
	border-radius: 999px;
	padding: 0.18rem 0.6rem;
}

.badge-pub {
	color: #c4b5fd;
	border-color: rgba(167, 139, 250, 0.35);
	background: rgba(167, 139, 250, 0.1);
}

.badge-review {
	color: #ffce96;
	border-color: rgba(255, 184, 107, 0.35);
	background: rgba(255, 184, 107, 0.08);
}

.work-desc {
	font-size: 0.78rem;
	color: var(--text-soft);
	padding: 0.5rem 0.9rem 0.85rem;
}

/* ---------- projects ---------- */
.proj {
	display: flex;
	gap: 0.85rem;
	text-decoration: none;
	padding: 0.9rem 0.75rem;
	border-radius: 12px;
	transition: background 0.15s;
}

.proj:hover {
	background: var(--card);
}

.proj-icon {
	flex-shrink: 0;
	width: 38px;
	height: 38px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #131316;
	background: var(--c, var(--green));
	border-radius: 10px;
}

.proj-icon svg {
	width: 19px;
	height: 19px;
}

.proj-info {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.proj-name {
	font-size: 0.88rem;
	font-weight: 600;
	display: flex;
	align-items: baseline;
	gap: 0.5rem;
}

.proj-name em {
	font-style: normal;
	font-size: 0.68rem;
	font-weight: 500;
	color: var(--text-faint);
}

.proj-desc {
	font-size: 0.78rem;
	color: var(--text-soft);
}

.proj-url {
	font-size: 0.66rem;
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--text-faint);
}

.proj:hover .proj-url {
	color: var(--green);
}

/* ---------- writing ---------- */
.post {
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
	text-decoration: none;
	padding: 0.95rem 0.75rem;
	border-radius: 12px;
	transition: background 0.15s;
}

.post:hover {
	background: var(--card);
}

.post time {
	font-size: 0.68rem;
	font-weight: 500;
	color: var(--text-faint);
}

.post-title {
	font-size: 0.88rem;
	font-weight: 600;
	line-height: 1.35;
}

.post:hover .post-title {
	color: var(--green);
}

.post-desc {
	font-size: 0.78rem;
	color: var(--text-soft);
}

.post .proj-url {
	margin-top: 0.15rem;
}

/* ---------- achievements ---------- */
.ach {
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 12px;
	padding: 0.95rem 1rem;
	margin-bottom: 0.9rem;
	transition: border-color 0.15s;
}

.ach:hover {
	border-color: var(--line-strong);
}

.ach-head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 0.75rem;
	margin-bottom: 0.35rem;
}

.ach-head h3 {
	font-size: 0.86rem;
	font-weight: 600;
	line-height: 1.35;
}

.ach-head h3 a {
	text-decoration: none;
}

.ach-head h3 a:hover {
	color: var(--green);
}

.ach-amount {
	font-size: 0.84rem;
	font-weight: 700;
	color: var(--green);
	white-space: nowrap;
}

.ach-desc {
	font-size: 0.78rem;
	color: var(--text-soft);
	margin-bottom: 0.4rem;
}

.ach-year {
	font-size: 0.68rem;
	font-weight: 500;
	color: var(--text-faint);
}

/* ---------- certifications ---------- */
.cert {
	display: flex;
	gap: 0.85rem;
	align-items: center;
	background: var(--card);
	border: 1px solid var(--line);
	border-radius: 12px;
	padding: 0.85rem 1rem;
	margin-bottom: 0.9rem;
	transition: border-color 0.15s;
}

.cert:hover {
	border-color: var(--line-strong);
}

.cert-thumb {
	flex-shrink: 0;
	width: 76px;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	object-position: top center;
	border-radius: 7px;
	border: 1px solid var(--line-strong);
	background: #fff;
}

.cert h3 {
	font-size: 0.86rem;
	font-weight: 600;
	line-height: 1.35;
}

.cert-issuer {
	font-size: 0.72rem;
	font-weight: 500;
	color: var(--violet);
	margin-top: 0.15rem;
}

.board-footer {
	font-size: 0.7rem;
	color: var(--text-faint);
	margin-top: 2rem;
}

/* ---------- focus ---------- */
:focus-visible {
	outline: 2px solid var(--green);
	outline-offset: 2px;
	border-radius: 4px;
}

/* ---------- responsive: stack columns ---------- */
@media (max-width: 760px) {
	body {
		overflow: auto;
		height: auto;
		display: block;
	}

	.topbar {
		position: sticky;
		top: 0;
		z-index: 50;
		background: color-mix(in srgb, var(--bg) 88%, transparent);
		backdrop-filter: blur(10px);
		-webkit-backdrop-filter: blur(10px);
	}

	.nav-arrows {
		display: none;
	}

	.board {
		flex-direction: column;
		overflow: visible;
		padding: 0 0.9rem 1.2rem;
	}

	.col,
	.col-career {
		flex: none;
		width: 100%;
	}

	.col-body {
		overflow: visible;
	}

	.pixel-wrap {
		max-width: 420px;
	}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {

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

	.board {
		scroll-behavior: auto;
	}
}