:root {
    --color-bg: #f4f0e7;
    --color-bg-alt: #e3ebe8;
    --color-card: rgba(255, 253, 248, 0.88);
    --color-surface: rgba(251, 248, 241, 0.9);
    --color-surface-strong: #ffffff;
    --color-surface-muted: #eae3d5;
    --color-navbar: rgba(255, 253, 248, 0.78);
    --color-navbar-scrolled: rgba(255, 253, 248, 0.88);
    --color-footer: rgba(255, 253, 248, 0.75);
    --color-text-main: #0c1c1b;
    --color-text-secondary: #2f4541;
    --color-text-muted: #5e726e;
    --color-text-on-accent: #ffffff;
    --color-accent: #0c6b65;
    --color-accent-hover: #084c47;
    --color-accent-deep: #053330;
    --color-accent-blue: #1e6b8f;
    --color-accent-soft: rgba(12, 107, 101, 0.08);
    --color-accent-outline: rgba(12, 107, 101, 0.22);
    --color-border: rgba(12, 107, 101, 0.12);
    --color-border-strong: rgba(12, 107, 101, 0.3);
    --color-grid: rgba(12, 107, 101, 0.04);
    --color-warning-soft: rgba(217, 119, 6, 0.08);
    --color-warning: #d97706;
    --color-gradient-text-1: #053330;
    --color-gradient-text-2: #0c6b65;
    --color-gradient-text-3: #1e6b8f;
    --color-shadow-rgb: 12, 28, 27;
    --color-accent-rgb: 12, 107, 101;
    --font-sans: "IBM Plex Sans", "Noto Sans SC", "Helvetica Neue", system-ui, sans-serif;
    --font-display: "Fraunces", "Source Serif 4", "Noto Serif SC", Georgia, serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-7: 2rem;
    --space-8: 2.5rem;
    --space-9: 3.5rem;
    --radius-sm: 0.375rem;
    --radius-btn: 0.75rem;
    --radius-card: 1.25rem;
    --radius-xl: 2rem;
    --radius-pill: 9999px;
    --shadow-sm: 0 2px 8px rgba(var(--color-shadow-rgb), 0.04);
    --shadow-md: 0 8px 30px rgba(var(--color-shadow-rgb), 0.06);
    --shadow-hover: 0 16px 40px rgba(var(--color-shadow-rgb), 0.12);
    --shadow-glow: 0 0 0 4px rgba(var(--color-accent-rgb), 0.06);
    --transition-spring: transform 400ms cubic-bezier(0.175, 0.885, 0.32, 1.1), box-shadow 300ms ease, border-color 250ms ease, background-color 250ms ease, color 250ms ease;
    --transition-smooth: all 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --glass-blur: blur(20px) saturate(160%);
}

[data-theme="dark"] {
    --color-bg: #0b1110;
    --color-bg-alt: #101c1a;
    --color-card: rgba(16, 28, 26, 0.85);
    --color-surface: rgba(20, 36, 33, 0.8);
    --color-surface-strong: #152623;
    --color-surface-muted: #1d3632;
    --color-navbar: rgba(11, 17, 16, 0.75);
    --color-navbar-scrolled: rgba(16, 28, 26, 0.85);
    --color-footer: rgba(11, 17, 16, 0.7);
    --color-text-main: #f0f7f6;
    --color-text-secondary: #cbdad8;
    --color-text-muted: #859f9c;
    --color-text-on-accent: #051413;
    --color-accent: #4fd1c5;
    --color-accent-hover: #81e6d9;
    --color-accent-deep: #b2f5ea;
    --color-accent-blue: #76c7f2;
    --color-accent-soft: rgba(79, 209, 197, 0.1);
    --color-accent-outline: rgba(79, 209, 197, 0.25);
    --color-border: rgba(79, 209, 197, 0.15);
    --color-border-strong: rgba(79, 209, 197, 0.35);
    --color-grid: rgba(79, 209, 197, 0.03);
    --color-warning-soft: rgba(246, 173, 85, 0.1);
    --color-warning: #f6ad55;
    --color-gradient-text-1: #e6fffa;
    --color-gradient-text-2: #4fd1c5;
    --color-gradient-text-3: #76c7f2;
    --color-shadow-rgb: 0, 0, 0;
    --color-accent-rgb: 79, 209, 197;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    padding-top: var(--space-4);
    padding-bottom: var(--space-8);
    background-color: var(--color-bg);
    background-image: radial-gradient(circle at 15% 10%, var(--color-accent-soft), transparent 24rem), radial-gradient(circle at 88% 8%, rgba(var(--color-accent-rgb), 0.08), transparent 20rem), linear-gradient(90deg, var(--color-grid) 1px, transparent 1px), linear-gradient(0deg, var(--color-grid) 1px, transparent 1px), linear-gradient(135deg, var(--color-bg), var(--color-bg-alt));
    background-size: auto, auto, 2.25rem 2.25rem, 2.25rem 2.25rem, auto;
    background-attachment: fixed;
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.72;
    letter-spacing: 0.005em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background-color 500ms cubic-bezier(0.4, 0, 0.2, 1), color 500ms cubic-bezier(0.4, 0, 0.2, 1), border-color 500ms cubic-bezier(0.4, 0, 0.2, 1), box-shadow 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

::selection {
    background: var(--color-accent-soft);
    color: var(--color-text-main);
}

p,
li,
dd {
    color: var(--color-text-secondary);
    line-height: 1.78;
}

p {
    margin-bottom: var(--space-4);
}

p:last-child {
    margin-bottom: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-main);
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-3);
}

h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.08;
}

h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.15rem);
    line-height: 1.16;
}

h3 {
    font-size: clamp(1.2rem, 2vw, 1.45rem);
    line-height: 1.28;
}

h4,
h5,
h6 {
    line-height: 1.35;
}

a {
    color: var(--color-accent-deep);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--color-accent);
    text-decoration: none;
}

a:focus-visible,
button:focus-visible {
    outline: 0.16rem solid var(--color-accent-outline);
    outline-offset: 0.16rem;
}

img {
    max-width: 100%;
}

.bg-light,
.bg-white {
    background-color: var(--color-surface-strong) !important;
    color: inherit;
}

.text-dark {
    color: var(--color-text-main) !important;
}

.text-secondary {
    color: var(--color-text-secondary) !important;
}

.text-muted {
    color: var(--color-text-muted) !important;
}

.text-accent {
    color: var(--color-accent) !important;
}

.border,
.border-top,
.border-bottom {
    border-color: var(--color-border) !important;
}

.badge {
    border-radius: var(--radius-pill);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge.bg-light,
.badge-light {
    background: var(--color-surface-muted) !important;
    color: var(--color-text-secondary) !important;
    border-color: var(--color-border) !important;
}

.font-monospace {
    font-family: var(--font-mono) !important;
}

.gap-2 {
    gap: var(--space-2);
}

.cursor-pointer {
    cursor: pointer;
}

.opacity-50 {
    opacity: 0.5;
}

.no-break {
    white-space: nowrap;
}

.rounded-xl {
    border-radius: var(--radius-card) !important;
}

.rounded-xl-top {
    border-top-left-radius: var(--radius-card) !important;
    border-top-right-radius: var(--radius-card) !important;
}

.page-main {
    padding: var(--space-2) 0 var(--space-8);
}

.page-main .academic-card,
.page-main .year-card,
.page-main .timeline-card,
.page-main .profile-card,
.page-main .pub-item {
    font-size: 0.99rem;
}

.page-section {
    margin-top: var(--space-7);
}

.page-header {
    position: relative;
    overflow: hidden;
    margin: var(--space-7) 0 var(--space-5);
    padding: var(--space-7);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-card), var(--color-surface)), radial-gradient(circle at 92% 20%, var(--color-accent-soft), transparent 16rem);
    box-shadow: var(--shadow-sm);
}

.page-header::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--space-1);
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-blue));
}

.page-header-title {
    margin-bottom: var(--space-2);
    font-size: clamp(2.2rem, 5.5vw, 3.6rem);
    font-weight: 800;
}

.page-header-subtitle {
    max-width: 44rem;
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}

.academic-card,
.year-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    background: linear-gradient(180deg, var(--color-card), var(--color-surface));
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.academic-card {
    position: relative;
    height: 100%;
    overflow: hidden;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.academic-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 0.25rem;
    background: linear-gradient(90deg, var(--color-accent), transparent 50%, var(--color-accent-blue));
    opacity: 0.75;
    z-index: 2;
}

.academic-card:hover,
.year-card:hover,
.timeline-card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-hover), var(--shadow-glow);
    transform: translateY(-0.25rem);
}

.card-header-simple {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background: linear-gradient(90deg, var(--color-surface-strong), var(--color-surface));
}

.card-header-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-main);
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    line-height: 1.25;
    text-transform: uppercase;
}

.card-header-title i {
    display: inline-grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent-outline);
    transition: var(--transition-smooth);
}

.academic-card:hover .card-header-title i {
    transform: scale(1.1) rotate(5deg);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
}

.card-body-simple {
    padding: var(--space-6);
}

.pub-view-all,
.btn-pub-link,
.social-btn,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    color: var(--color-text-secondary);
    font-weight: 600;
    transition: var(--transition-spring);
    box-shadow: var(--shadow-sm);
}

.pub-view-all {
    padding: var(--space-2) var(--space-4);
    color: var(--color-accent);
    font-size: 0.84rem;
    white-space: nowrap;
}

.pub-view-all:hover,
.btn-pub-link:hover,
.social-btn:hover,
.theme-toggle:hover,
.theme-toggle:focus,
.theme-toggle[aria-pressed="true"] {
    border-color: var(--color-accent-hover);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: translateY(-0.15rem);
}

.navbar-wrapper {
    position: sticky;
    top: var(--space-4);
    z-index: 1030;
    margin-bottom: var(--space-5);
}

.navbar-card {
    display: flex;
    align-items: center;
    min-height: 3.5rem;
    margin: 0;
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-navbar);
    box-shadow: var(--shadow-sm);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: var(--transition-spring);
}

.navbar-card.nav-scrolled {
    border-color: var(--color-border-strong);
    background: var(--color-navbar-scrolled);
    box-shadow: var(--shadow-md);
    transform: translateY(-0.1rem);
}

.navbar-card:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-main) !important;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    padding-left: var(--space-2);
}

.navbar-brand::before {
    content: "";
    width: 0.65rem;
    height: 0.65rem;
    border-radius: var(--radius-pill);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-blue));
    box-shadow: 0 0 0 0.35rem var(--color-accent-soft);
    transition: var(--transition-smooth);
}

.navbar-card:hover .navbar-brand::before {
    transform: scale(1.2);
    box-shadow: 0 0 0 0.45rem var(--color-accent-outline);
}

.nav-link {
    margin: 0 var(--space-1);
    padding: var(--space-2) var(--space-4) !important;
    border-radius: var(--radius-pill);
    color: var(--color-text-secondary) !important;
    font-size: 0.92rem;
    font-weight: 600;
    position: relative;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0.15rem;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 1.5rem;
    height: 0.15rem;
    border-radius: var(--radius-pill);
    background: var(--color-accent);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-accent) !important;
}

.nav-link:hover::after,
.nav-item.active .nav-link::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-item.active .nav-link {
    color: var(--color-accent) !important;
    background: var(--color-accent-soft);
}

.navbar-toggler {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    color: var(--color-text-main);
    padding: var(--space-2) var(--space-3);
    transition: var(--transition-smooth);
}

.navbar-toggler:hover {
    background: var(--color-accent-soft);
    border-color: var(--color-accent);
}

.theme-toggle {
    min-width: 2.5rem;
    min-height: 2.5rem;
    padding: 0;
    margin-left: var(--space-3);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

.theme-toggle i {
    font-size: 0.95rem;
    transition: transform 400ms cubic-bezier(0.175, 0.885, 0.32, 1.25);
}

.theme-toggle:hover i {
    transform: rotate(20deg) scale(1.15);
}

.theme-toggle-item {
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-card {
    height: auto;
    margin-top: var(--space-5);
    padding: var(--space-4) var(--space-6);
    background: var(--color-footer) !important;
    color: var(--color-text-secondary);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-card);
}

.footer-content {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.footer-text {
    flex: 1 1 auto;
    min-width: 0;
    line-height: 1.6;
}

.footer-updated {
    flex: 0 0 auto;
    margin-left: auto;
    white-space: nowrap;
}

.profile-card {
    padding: var(--space-7) !important;
    background:
        radial-gradient(ellipse at 92% 10%, rgba(var(--color-accent-rgb), 0.13), transparent 24rem),
        radial-gradient(ellipse at 4% 88%, rgba(var(--color-accent-rgb), 0.06), transparent 16rem),
        linear-gradient(135deg, var(--color-card), var(--color-surface));
}

.profile-card.academic-card::before {
    height: 0.3rem;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-blue) 55%, var(--color-accent-deep) 100%);
    opacity: 1;
}

.profile-card > .row {
    position: relative;
    z-index: 1;
}

.profile-card::after {
    content: "";
    position: absolute;
    right: -4rem;
    bottom: -4rem;
    width: 15rem;
    height: 15rem;
    border: 1px solid var(--color-accent-outline);
    border-radius: 50%;
    background: repeating-linear-gradient(135deg, transparent 0 0.65rem, var(--color-accent-soft) 0.65rem 0.72rem);
    opacity: 0.45;
    pointer-events: none;
}

.profile-img {
    width: 100%;
    max-width: 12rem;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border: 0.35rem solid var(--color-surface-strong);
    border-radius: var(--radius-card) !important;
    box-shadow: var(--shadow-md), 0 0 0 1px var(--color-border);
    transition: var(--transition-spring);
}

.profile-img:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-hover), var(--shadow-glow);
    transform: translateY(-0.4rem) rotate(1.5deg);
}

.profile-name {
    margin-bottom: var(--space-1);
    background: linear-gradient(135deg, var(--color-gradient-text-1), var(--color-gradient-text-2), var(--color-gradient-text-3));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    font-family: var(--font-display);
    font-size: clamp(2.35rem, 5vw, 3.45rem);
    line-height: 1.25;
    letter-spacing: -0.02em;
    display: block;
    width: 100%;
    max-width: 100%;
}

.profile-secondary {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    font-weight: 500;
}

.profile-badges {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.profile-badges-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.position-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    box-shadow: var(--shadow-sm);
    color: var(--color-text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.position-badge:hover {
    border-color: var(--color-accent);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    transform: translateY(-0.05rem);
}

.position-badge img {
    width: 1.1rem;
    height: 1.1rem;
    object-fit: contain;
}

.profile-bio {
    max-width: 58rem;
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.78;
}

.profile-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
}

.social-btn {
    padding: var(--space-2) var(--space-4);
    margin: 0;
    font-size: 0.88rem;
    background: var(--color-surface-strong);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: var(--transition-spring);
}

.social-btn:hover {
    border-color: var(--color-accent);
    background: var(--color-accent-soft);
    color: var(--color-accent);
}

/* Custom branded social button styles on hover */
.social-btn i.fa-google-scholar { color: #3c78d8; }
.social-btn i.fa-github { color: #171515; }
.social-btn i.fa-linkedin { color: #0077b5; }
.social-btn i.fa-weixin { color: #07c160; }
.social-btn i.fa-orcid { color: #a6ce39; }

[data-theme="dark"] .social-btn i.fa-google-scholar { color: #6fa8dc; }
[data-theme="dark"] .social-btn i.fa-github { color: #f0f6fc; }
[data-theme="dark"] .social-btn i.fa-linkedin { color: #33a3fc; }
[data-theme="dark"] .social-btn i.fa-weixin { color: #26d87c; }

.btn-cv {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
}

.btn-cv:hover {
    border-color: var(--color-accent-hover);
    background: var(--color-accent-hover);
    color: var(--color-text-on-accent);
}

.profile-caption {
    margin-top: var(--space-3);
    color: var(--color-text-muted);
    font-size: 0.82rem;
    font-style: italic;
    font-weight: 500;
    line-height: 1.5;
}

.news-scroll {
    max-height: 18.5rem;
    overflow-y: auto;
    padding-right: var(--space-2);
    scrollbar-width: thin;
    scrollbar-color: var(--color-accent-outline) transparent;
}

.news-scroll::-webkit-scrollbar {
    width: 0.35rem;
}

.news-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.news-scroll::-webkit-scrollbar-thumb {
    border-radius: var(--radius-pill);
    background: var(--color-accent-outline);
}

.news-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-hover);
}

.news-row {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    position: relative;
    z-index: 1;
    transition: var(--transition-spring);
}

.news-row:last-child {
    border-bottom: 0;
}

.news-row::before {
    content: "";
    position: absolute;
    top: 3.5rem;
    bottom: -1rem;
    left: 2.7rem;
    width: 1px;
    border-left: 1px dashed var(--color-border);
    z-index: -1;
}

.news-row:last-child::before {
    display: none;
}

.news-row:hover {
    background: var(--color-accent-soft);
    box-shadow: var(--shadow-sm);
    transform: translateX(var(--space-2));
}

.news-badge {
    display: flex;
    flex: 0 0 3.6rem;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 3.6rem;
    padding: var(--space-2);
    border: 1px solid var(--color-accent-outline);
    border-radius: var(--radius-btn);
    background: var(--color-surface-strong);
    color: var(--color-accent);
    line-height: 1.1;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.news-row:hover .news-badge {
    border-color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: scale(1.05);
}

.news-badge-month {
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.85;
}

.news-badge-year {
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    opacity: 0.75;
}

.news-badge-day {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    font-weight: 800;
}

.news-content {
    flex: 1 1 auto;
    padding-top: var(--space-2);
}

.news-title {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.96rem;
    line-height: 1.6;
    transition: var(--transition-smooth);
}

.news-row:hover .news-title {
    color: var(--color-text-main);
}

.timeline-wrapper {
    position: relative;
    margin-left: var(--space-2);
    padding-left: var(--space-7);
    border-left: 2px dashed var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-7);
    transition: var(--transition-smooth);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    top: 0.2rem;
    left: calc(-1 * var(--space-7));
    z-index: 2;
    display: flex;
    width: 2.5rem;
    height: 2.5rem;
    align-items: center;
    justify-content: center;
    padding: var(--space-1);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    box-shadow: var(--shadow-sm), 0 0 0 4px var(--color-accent-soft);
    transform: translateX(-50%);
    transition: var(--transition-spring);
}

.timeline-marker img,
.timeline-marker .icon-placeholder {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-pill);
}

.icon-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-soft);
    color: var(--color-accent);
}

.timeline-item:hover .timeline-marker {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow), var(--shadow-md), 0 0 0 6px var(--color-accent-soft);
    transform: translateX(-50%) scale(1.1) rotate(5deg);
}

.timeline-content {
    margin-left: var(--space-2);
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    background: var(--color-card);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    border-color: var(--color-accent-outline);
    background: var(--color-surface-strong);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: translateX(var(--space-2));
}

.exp-title {
    color: var(--color-text-main);
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.35;
}

.exp-meta {
    margin-left: auto;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    line-height: 1.3;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.timeline-item:hover .exp-meta {
    background: var(--color-accent);
    color: var(--color-text-on-accent);
    border-color: var(--color-accent);
}

.exp-subtitle {
    margin-top: var(--space-1);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
}

.exp-desc {
    margin-top: var(--space-2);
    color: var(--color-text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

.award-card {
    display: flex;
    height: 100%;
    align-items: center;
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    background: var(--color-card);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.award-card:hover {
    border-color: var(--color-warning);
    background: var(--color-surface-strong);
    box-shadow: var(--shadow-md), 0 0 0 4px var(--color-warning-soft);
    transform: translateY(-0.2rem);
}

.award-icon {
    display: flex;
    flex: 0 0 2.6rem;
    width: 2.6rem;
    height: 2.6rem;
    align-items: center;
    justify-content: center;
    margin-right: var(--space-4);
    border-radius: var(--radius-pill);
    background: var(--color-warning-soft);
    color: var(--color-warning);
    font-size: 1.1rem;
    box-shadow: 0 0 0 1px rgba(217, 119, 6, 0.2);
    transition: var(--transition-smooth);
}

.award-card:hover .award-icon {
    transform: scale(1.15) rotate(10deg);
    background: var(--color-warning);
    color: var(--color-surface-strong);
}

.award-content {
    flex: 1 1 auto;
}

.award-title {
    color: var(--color-text-main);
    font-size: 0.9rem;
    font-weight: 800;
    line-height: 1.4;
}

.award-date {
    margin-top: var(--space-1);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 600;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-5);
}

.stat-item {
    position: relative;
    display: flex;
    min-height: 9.5rem;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--space-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    background: radial-gradient(circle at 100% 100%, var(--color-accent-soft), transparent 9rem), var(--color-card);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.stat-item:hover {
    border-color: var(--color-accent-outline);
    background: var(--color-surface-strong);
    box-shadow: var(--shadow-hover), var(--shadow-glow);
    transform: translateY(-0.25rem);
}

.stat-bg-icon {
    position: absolute;
    right: -0.6rem;
    bottom: -0.9rem;
    color: var(--color-accent);
    font-size: 5rem;
    opacity: 0.05;
    transform: rotate(-14deg);
    transition: var(--transition-spring);
}

.stat-item:hover .stat-bg-icon {
    opacity: 0.12;
    transform: rotate(0deg) scale(1.08);
}

.stat-value,
.funding-main {
    position: relative;
    z-index: 1;
    margin-bottom: var(--space-2);
    background: linear-gradient(135deg, var(--color-gradient-text-2), var(--color-gradient-text-3));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 2.6rem);
    font-weight: 800;
    line-height: 1.05;
}

.stat-label {
    position: relative;
    z-index: 1;
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.funding-group {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.funding-sub {
    margin-top: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.stat-prefix {
    margin-right: var(--space-1);
    font-size: 0.68em;
    opacity: 0.75;
    vertical-align: middle;
}

.year-card {
    position: relative;
    padding: var(--space-6) var(--space-6) var(--space-7);
}

.year-card .year-heading {
    margin-bottom: var(--space-5);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--space-3);
}

.year-heading {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.2vw, 2.2rem);
    font-weight: 800;
    color: var(--color-text-main);
}

.paper-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.4rem;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-accent-outline);
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 800;
}

.year-publications-list {
    display: grid;
    gap: var(--space-5);
    margin-top: var(--space-2);
}

.publication-entry-card {
    height: auto;
}

.year-card .publication-entry-card .pub-item,
.publication-entry-card .pub-item {
    border-bottom: 0;
}

.timeline-card {
    padding: var(--space-5) var(--space-6);
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.timeline-title {
    margin-bottom: var(--space-4);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.timeline-nav .nav-link {
    margin-bottom: var(--space-2);
    padding: var(--space-2) var(--space-4) !important;
    border-radius: var(--radius-pill);
    color: var(--color-text-secondary) !important;
    font-size: 0.92rem;
    font-weight: 600;
}

.timeline-nav .nav-link:hover,
.timeline-nav .nav-link.active {
    background: var(--color-accent-soft);
    color: var(--color-accent) !important;
}

.sticky-sidebar {
    position: sticky;
    top: 7rem;
}

.pub-item {
    padding: var(--space-5) 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-smooth);
}

.pub-item:last-child {
    border-bottom: 0;
}

.pub-cover {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    background: var(--color-surface-muted);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-spring);
}

.pub-item:hover .pub-cover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: scale(1.04) rotate(-0.5deg);
}

.pub-title {
    margin-bottom: var(--space-2);
    color: var(--color-text-main);
    font-family: var(--font-display);
    font-size: 1.22rem;
    font-weight: 800;
    line-height: 1.35;
    transition: var(--transition-smooth);
}

.pub-item:hover .pub-title {
    color: var(--color-accent);
}

.pub-authors {
    margin-bottom: var(--space-3);
    color: var(--color-text-secondary);
    font-size: 0.96rem;
    line-height: 1.6;
}

.pub-authors .text-body {
    color: var(--color-text-secondary) !important;
    transition: var(--transition-smooth);
}

.pub-authors a.text-body:hover {
    color: var(--color-accent) !important;
}

.pub-authors strong,
.pub-authors b {
    font-weight: 700;
    background: var(--color-accent-soft);
    padding: 0.05rem 0.35rem;
    border-radius: var(--radius-sm);
    color: var(--color-accent) !important;
}

.pub-authors mark {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-pill);
    background: var(--color-surface-muted);
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 600;
}

.pub-venue {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.pub-venue strong {
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-accent-outline);
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-size: 0.74rem;
    font-style: normal;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.pub-abstract {
    margin: var(--space-4) 0;
    padding: var(--space-4) var(--space-5);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-btn);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-size: 0.94rem;
    line-height: 1.7;
    box-shadow: var(--shadow-sm);
}

.btn-pub-link {
    margin-top: var(--space-2);
    margin-right: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: 0.8rem;
    text-transform: capitalize;
}

.prompt-container {
    width: auto;
    max-width: 44rem;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.prompt-container .page-header {
    margin-top: var(--space-9);
    text-align: center;
}

.prompt-container .page-header::before {
    inset: 0 0 auto;
    width: auto;
    height: 0.25rem;
}

@media (max-width: 991.98px) {
    .sticky-sidebar {
        position: static;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    body {
        padding-top: var(--space-2);
        font-size: 0.97rem;
    }

    .navbar-wrapper {
        top: var(--space-2);
    }

    .navbar-card {
        border-radius: var(--radius-card);
    }

    .navbar-collapse {
        padding-top: var(--space-3);
    }

    .navbar-nav {
        align-items: stretch !important;
    }

    .nav-link,
    .theme-toggle {
        width: 100%;
        justify-content: flex-start;
        margin: var(--space-1) 0;
    }

    .page-header,
    .profile-card {
        padding: var(--space-5) !important;
    }

    .page-header-title,
    .profile-name {
        font-size: clamp(1.8rem, 11vw, 2.45rem);
    }

    .card-header-simple {
        align-items: flex-start;
        flex-direction: column;
    }

    .card-body-simple {
        padding: var(--space-5);
    }

    .timeline-wrapper {
        margin-left: 0;
        padding-left: var(--space-6);
    }

    .timeline-marker {
        left: calc(-1 * var(--space-6));
        width: 2.2rem;
        height: 2.2rem;
    }

    .timeline-content {
        margin-left: 0;
    }

    .exp-meta {
        display: inline-block;
        margin-top: var(--space-2);
        margin-left: 0;
    }

    .footer-content {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-updated {
        margin-left: 0;
    }

    .news-row {
        gap: var(--space-3);
        padding: var(--space-3) 0;
    }

    .news-row:hover {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

.navbar-card::before,
.footer-card::before {
    display: none;
}

.navbar-card:hover,
.footer-card:hover {
    transform: none;
}

.pub-cover-placeholder {
    min-height: 6.25rem;
    border-style: dashed;
}

/* ===== Profile secondary — hide when empty ===== */
.profile-secondary:empty {
    display: none;
}

/* ===== Scroll-reveal entrance animation ===== */
.reveal-item {
    opacity: 0;
    transform: translateY(1.5rem);
    transition: opacity 600ms cubic-bezier(0.4, 0, 0.2, 1),
                transform 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-item.revealed {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .reveal-item {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ===== Publications page header ===== */
.page-header-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.page-header-stat {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: var(--color-surface-strong);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}