/* ══════════════════════════════════════════════════════════════
   Zhanchao Yang — Web CV
   Loads after home.css and inherits its tokens:
   warm ivory · academic navy · restrained brick red
══════════════════════════════════════════════════════════════ */

body.cv-page {
	background: var(--bg);
	color: var(--ink);
	font-family: var(--sans);
	font-size: 16px;
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

/* ── Header ───────────────────────────────────────────────── */
.cv-hero {
	padding: 150px 0 56px;
	border-bottom: 1px solid var(--line-soft);
	background: linear-gradient(180deg, var(--surface-warm) 0%, var(--bg) 100%);
}
.cv-hero-eyebrow {
	font-size: 0.76rem;
	font-weight: 600;
	letter-spacing: 0.22em;
	text-transform: uppercase;
	color: var(--red);
	margin-bottom: 14px;
}
.cv-hero h1 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: clamp(2.3rem, 5vw, 3.4rem);
	line-height: 1.08;
	letter-spacing: -0.01em;
	margin-bottom: 10px;
}
.cv-hero-identity {
	font-size: 1.02rem;
	font-weight: 500;
	letter-spacing: 0.02em;
	color: var(--ink-soft);
	margin-bottom: 18px;
}
.cv-hero-identity .dot {
	color: var(--red);
	margin: 0 6px;
}
.cv-hero-statement {
	font-family: var(--serif);
	font-size: 1.08rem;
	line-height: 1.7;
	color: var(--ink-soft);
	max-width: 640px;
	margin-bottom: 26px;
}
.cv-hero-actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 14px;
	margin-bottom: 18px;
}
.cv-hero .btn-primary {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background: var(--ink);
	color: #fff;
	font-family: var(--sans);
	font-size: 0.9rem;
	font-weight: 500;
	letter-spacing: 0.03em;
	text-decoration: none;
	padding: 13px 24px;
	border-radius: 6px;
	transition: background 0.25s ease, transform 0.25s ease;
}
.cv-hero .btn-primary:hover {
	background: var(--red);
	transform: translateY(-1px);
}
.btn-outline {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	border: 1px solid var(--line);
	color: var(--ink);
	font-size: 0.9rem;
	font-weight: 500;
	letter-spacing: 0.03em;
	text-decoration: none;
	padding: 12px 22px;
	border-radius: 6px;
	background: var(--surface);
	transition: border-color 0.25s ease, color 0.25s ease;
}
.btn-outline:hover {
	border-color: var(--red);
	color: var(--red);
}
.cv-hero-note {
	font-size: 0.82rem;
	color: var(--ink-faint);
	max-width: 560px;
}
.cv-hero-note strong {
	color: var(--ink-soft);
	font-weight: 600;
}
.cv-hero-meta {
	margin-top: 14px;
	font-size: 0.76rem;
	font-weight: 500;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--ink-faint);
}

/* ── Layout: sticky sidebar + content ─────────────────────── */
.cv-layout {
	display: grid;
	grid-template-columns: 210px minmax(0, 1fr);
	gap: 64px;
	padding: 56px 0 90px;
	align-items: start;
}

.cv-sidebar {
	position: sticky;
	top: 96px;
}
.cv-sidebar-label {
	font-size: 0.7rem;
	font-weight: 600;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--ink-faint);
	margin-bottom: 14px;
}
.cv-sidebar nav {
	display: flex;
	flex-direction: column;
	border-left: 1px solid var(--line-soft);
}
.cv-sidebar nav a {
	position: relative;
	font-size: 0.86rem;
	font-weight: 500;
	color: var(--ink-faint);
	text-decoration: none;
	padding: 6px 0 6px 18px;
	transition: color 0.25s ease;
}
.cv-sidebar nav a::before {
	content: '';
	position: absolute;
	left: -1px;
	top: 0;
	bottom: 0;
	width: 2px;
	background: var(--red);
	transform: scaleY(0);
	transition: transform 0.25s ease;
}
.cv-sidebar nav a:hover {
	color: var(--ink);
}
.cv-sidebar nav a.active {
	color: var(--red);
}
.cv-sidebar nav a.active::before {
	transform: scaleY(1);
}
.cv-sidebar-download {
	margin-top: 22px;
	padding-top: 18px;
	border-top: 1px solid var(--line-soft);
	font-size: 0.8rem;
}
.cv-sidebar-download a {
	color: var(--ink-soft);
	text-decoration: none;
	border-bottom: 1px solid var(--line);
	transition: color 0.25s ease, border-color 0.25s ease;
}
.cv-sidebar-download a:hover {
	color: var(--red);
	border-color: var(--red);
}

/* ── Sections ─────────────────────────────────────────────── */
.cv-section {
	padding: 34px 0 44px;
	scroll-margin-top: 92px;
}
.cv-section + .cv-section {
	border-top: 1px solid var(--line-soft);
}
.cv-section-title {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.7rem;
	letter-spacing: -0.005em;
	margin-bottom: 6px;
}
.cv-section-sub {
	font-size: 0.9rem;
	color: var(--ink-faint);
	margin-bottom: 28px;
	max-width: 620px;
}
.cv-section-sub a {
	color: var(--red);
	text-decoration: none;
}
.cv-section-sub a:hover {
	text-decoration: underline;
}

.cv-subhead {
	font-size: 0.74rem;
	font-weight: 600;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--ink-faint);
	margin: 34px 0 18px;
}
.cv-subhead:first-of-type {
	margin-top: 0;
}

/* ── Timeline entries ─────────────────────────────────────── */
.cv-timeline {
	position: relative;
	border-left: 1px solid var(--line);
	margin-left: 4px;
}
.cv-entry {
	position: relative;
	padding: 0 0 34px 30px;
}
.cv-entry:last-child {
	padding-bottom: 6px;
}
.cv-entry::before {
	content: '';
	position: absolute;
	left: -5px;
	top: 7px;
	width: 9px;
	height: 9px;
	border-radius: 50%;
	background: var(--bg);
	border: 2px solid var(--red);
}
.cv-entry.secondary::before {
	border-color: var(--blue-soft);
}
.cv-entry-date {
	font-size: 0.76rem;
	font-weight: 600;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--red);
	margin-bottom: 5px;
}
.cv-entry.secondary .cv-entry-date {
	color: var(--blue);
}
.cv-entry h3 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.22rem;
	line-height: 1.35;
	margin-bottom: 3px;
}
.cv-entry h3 a {
	color: inherit;
	text-decoration: none;
	transition: color 0.25s ease;
}
.cv-entry h3 a:hover {
	color: var(--red);
}
.cv-entry-role {
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--ink-soft);
	margin-bottom: 2px;
}
.cv-entry-inst {
	font-size: 0.86rem;
	color: var(--ink-faint);
	margin-bottom: 10px;
}
.cv-entry-desc {
	font-size: 0.94rem;
	color: var(--ink-soft);
	max-width: 640px;
	margin-bottom: 10px;
}
.cv-entry ul {
	list-style: none;
	max-width: 640px;
	margin: 10px 0 0;
}
.cv-entry ul li {
	position: relative;
	font-size: 0.92rem;
	color: var(--ink-soft);
	padding-left: 18px;
	margin-bottom: 6px;
}
.cv-entry ul li::before {
	content: '';
	position: absolute;
	left: 2px;
	top: 0.62em;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	background: var(--sand-deep);
}
.cv-entry-honors {
	margin-top: 10px;
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}
.cv-entry-honors span {
	font-size: 0.76rem;
	font-weight: 500;
	letter-spacing: 0.03em;
	color: var(--ink-soft);
	background: var(--surface-warm);
	border: 1px solid var(--line-soft);
	padding: 4px 11px;
	border-radius: 100px;
}
.cv-gpa {
	font-size: 0.86rem;
	color: var(--ink-soft);
	margin-top: 6px;
}
.cv-gpa strong {
	font-weight: 600;
	color: var(--ink);
}

/* ── Cross-links ("View Project →") ───────────────────────── */
.cv-xlink {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	font-size: 0.86rem;
	font-weight: 500;
	color: var(--red);
	text-decoration: none;
	margin-top: 12px;
}
.cv-xlink .arrow {
	transition: transform 0.25s ease;
}
.cv-xlink:hover .arrow {
	transform: translateX(4px);
}
.cv-xlinks-row {
	display: flex;
	flex-wrap: wrap;
	gap: 8px 22px;
}

/* ── Research interests ───────────────────────────────────── */
.cv-interests {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 34px;
	max-width: 720px;
}
.cv-interest-group h3 {
	font-size: 0.74rem;
	font-weight: 600;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--ink-faint);
	margin-bottom: 14px;
}
.cv-interest-group ul {
	list-style: none;
}
.cv-interest-group li {
	font-family: var(--serif);
	font-size: 1.04rem;
	color: var(--ink);
	padding: 7px 0;
	border-bottom: 1px solid var(--line-soft);
}
.cv-interest-group li:last-child {
	border-bottom: none;
}

/* ── Publications ─────────────────────────────────────────── */
.cv-pub {
	max-width: 680px;
	padding: 20px 0;
}
.cv-pub + .cv-pub {
	border-top: 1px solid var(--line-soft);
}
.cv-pub h3 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.14rem;
	line-height: 1.4;
	margin-bottom: 6px;
}
.cv-pub-authors {
	font-size: 0.9rem;
	color: var(--ink-soft);
	margin-bottom: 3px;
}
.cv-pub-authors strong {
	font-weight: 600;
	color: var(--ink);
}
.cv-pub-venue {
	font-size: 0.88rem;
	color: var(--ink-faint);
}
.cv-pub-venue em {
	font-family: var(--serif);
	color: var(--ink-soft);
}
.cv-pub-status {
	display: inline-block;
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--red);
	background: rgba(165, 28, 48, 0.07);
	padding: 3px 10px;
	border-radius: 100px;
	margin-left: 8px;
	vertical-align: 1px;
}
.cv-pub-links {
	margin-top: 8px;
	display: flex;
	flex-wrap: wrap;
	gap: 6px 18px;
}
.cv-pub-links a {
	font-size: 0.84rem;
	font-weight: 500;
	color: var(--red);
	text-decoration: none;
}
.cv-pub-links a:hover {
	text-decoration: underline;
}

/* ── Expandable research entries ──────────────────────────── */
.cv-research details {
	max-width: 680px;
}
.cv-research summary {
	list-style: none;
	cursor: pointer;
}
.cv-research summary::-webkit-details-marker {
	display: none;
}
.cv-details-toggle {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	font-size: 0.84rem;
	font-weight: 500;
	color: var(--red);
	margin-top: 10px;
}
.cv-details-toggle::after {
	content: '+';
	font-size: 1rem;
	line-height: 1;
	transition: transform 0.25s ease;
}
.cv-research details[open] .cv-details-toggle::after {
	transform: rotate(45deg);
}
.cv-research details[open] .cv-details-toggle .label-closed,
.cv-research details:not([open]) .cv-details-toggle .label-open {
	display: none;
}
.cv-details-body {
	margin-top: 12px;
	padding: 18px 22px;
	background: var(--surface);
	border: 1px solid var(--line-soft);
	border-radius: 10px;
	box-shadow: var(--shadow);
}
.cv-details-body .cv-detail-label {
	font-size: 0.7rem;
	font-weight: 600;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--ink-faint);
	margin: 14px 0 6px;
}
.cv-details-body .cv-detail-label:first-child {
	margin-top: 0;
}
.cv-details-body p {
	font-size: 0.92rem;
	color: var(--ink-soft);
}
.cv-details-body ul {
	list-style: none;
	margin: 0;
}
.cv-details-body ul li {
	position: relative;
	font-size: 0.92rem;
	color: var(--ink-soft);
	padding-left: 18px;
	margin-bottom: 6px;
}
.cv-details-body ul li::before {
	content: '';
	position: absolute;
	left: 2px;
	top: 0.62em;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	background: var(--sand-deep);
}

/* ── Earlier research archive ─────────────────────────────── */
.cv-archive {
	max-width: 680px;
	border: 1px solid var(--line-soft);
	border-radius: 10px;
	background: var(--surface-warm);
	margin-top: 26px;
}
.cv-archive summary {
	list-style: none;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
	padding: 16px 22px;
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.05rem;
}
.cv-archive summary::-webkit-details-marker {
	display: none;
}
.cv-archive summary .cv-archive-hint {
	font-family: var(--sans);
	font-size: 0.78rem;
	font-weight: 500;
	color: var(--ink-faint);
	white-space: nowrap;
}
.cv-archive summary .cv-archive-hint::after {
	content: ' +';
	color: var(--red);
}
.cv-archive[open] summary .cv-archive-hint::after {
	content: ' −';
}
.cv-archive-body {
	padding: 4px 22px 22px;
}
.cv-archive-item {
	padding: 14px 0;
}
.cv-archive-item + .cv-archive-item {
	border-top: 1px solid var(--line-soft);
}
.cv-archive-item h4 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1rem;
	margin-bottom: 2px;
}
.cv-archive-item .cv-entry-role {
	margin-bottom: 4px;
}
.cv-archive-item p {
	font-size: 0.88rem;
	color: var(--ink-soft);
	max-width: 560px;
}
.cv-archive-tags {
	margin-top: 8px;
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.cv-archive-tags span {
	font-size: 0.72rem;
	font-weight: 500;
	color: var(--ink-faint);
	background: var(--surface);
	border: 1px solid var(--line-soft);
	padding: 3px 9px;
	border-radius: 100px;
}

/* ── Teaching courses ─────────────────────────────────────── */
.cv-courses {
	display: grid;
	gap: 10px;
	max-width: 640px;
	margin: 12px 0;
}
.cv-course {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px 12px;
	padding: 12px 16px;
	background: var(--surface);
	border: 1px solid var(--line-soft);
	border-radius: 8px;
}
.cv-course-code {
	font-size: 0.78rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	color: var(--red);
	white-space: nowrap;
}
.cv-course-name {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 0.98rem;
}
.cv-course-term {
	font-size: 0.8rem;
	color: var(--ink-faint);
	flex-basis: 100%;
}

/* ── Presentations ────────────────────────────────────────── */
.cv-pres-year {
	display: flex;
	align-items: baseline;
	gap: 16px;
	margin: 26px 0 8px;
}
.cv-pres-year:first-of-type {
	margin-top: 0;
}
.cv-pres-year h3 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.25rem;
	color: var(--red);
}
.cv-pres-year::after {
	content: '';
	flex: 1;
	height: 1px;
	background: var(--line-soft);
}
.cv-pres {
	max-width: 680px;
	padding: 12px 0;
}
.cv-pres h4 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.04rem;
	line-height: 1.4;
	margin-bottom: 3px;
}
.cv-pres-meta {
	font-size: 0.86rem;
	color: var(--ink-faint);
}
.cv-pres-meta .cv-pres-type {
	font-weight: 600;
	color: var(--ink-soft);
}

/* ── Awards ───────────────────────────────────────────────── */
.cv-award {
	display: grid;
	grid-template-columns: 64px minmax(0, 1fr);
	gap: 18px;
	max-width: 680px;
	padding: 13px 0;
}
.cv-award + .cv-award {
	border-top: 1px solid var(--line-soft);
}
.cv-award-year {
	font-size: 0.86rem;
	font-weight: 600;
	color: var(--red);
	padding-top: 2px;
}
.cv-award h4 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1.04rem;
	margin-bottom: 2px;
}
.cv-award p {
	font-size: 0.88rem;
	color: var(--ink-soft);
}
.cv-award .cv-xlink {
	margin-top: 6px;
}

/* ── Memberships ──────────────────────────────────────────── */
.cv-member {
	max-width: 640px;
	padding: 10px 0;
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: 4px 14px;
}
.cv-member + .cv-member {
	border-top: 1px solid var(--line-soft);
}
.cv-member h4 {
	font-family: var(--serif);
	font-weight: 600;
	font-size: 1rem;
}
.cv-member span {
	font-size: 0.86rem;
	color: var(--ink-faint);
}

/* ── Skills ───────────────────────────────────────────────── */
.cv-skills {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 28px;
	max-width: 760px;
}
.cv-skill-group h3 {
	font-size: 0.74rem;
	font-weight: 600;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--ink-faint);
	margin-bottom: 12px;
}
.cv-skill-group ul {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}
.cv-skill-group li {
	font-size: 0.84rem;
	font-weight: 500;
	color: var(--ink-soft);
	background: var(--surface);
	border: 1px solid var(--line-soft);
	padding: 5px 13px;
	border-radius: 100px;
}
.cv-skills-extra {
	margin-top: 20px;
	font-size: 0.84rem;
	color: var(--ink-faint);
}

/* ── References ───────────────────────────────────────────── */
.cv-references p {
	font-family: var(--serif);
	font-size: 1.05rem;
	font-style: italic;
	color: var(--ink-soft);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 980px) {
	.cv-layout {
		grid-template-columns: 1fr;
		gap: 0;
	}
	.cv-sidebar {
		display: none;
	}
	.cv-interests {
		grid-template-columns: 1fr;
		gap: 26px;
	}
	.cv-skills {
		grid-template-columns: 1fr;
		gap: 22px;
	}
}
@media (max-width: 640px) {
	.cv-hero {
		padding: 120px 0 42px;
	}
	.cv-award {
		grid-template-columns: 1fr;
		gap: 2px;
	}
	.cv-entry {
		padding-left: 22px;
	}
}