/* --------------------------------------------------------------- Personal site — base styles Clean, academic look with a single accent color, in light and dark variants. Edit the CSS custom properties below to re-theme the whole site. Theme resolution (see also main.js and the inline script in base.html's ): - No saved preference -> follows the OS/browser color-scheme (the prefers-color-scheme block below). - Saved preference ("light"/"dark" in localStorage) -> the matching [data-theme="..."] block always wins, in both directions, regardless of OS setting. ------------------------------------------------------------------ */ :root { --color-bg: #ffffff; --color-bg-alt: #f6f7f9; --color-text: #1f2430; --color-text-muted: #5b6270; --color-border: #e3e5ea; --color-accent: #1e5eab; --color-accent-dark: #143f73; --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; --font-heading: var(--font-body); --max-width: 920px; /* Blue "panel" card used to frame the main sections (Biography, Papers, ...) */ --card-bg-start: #eaf3ff; --card-bg-end: #d5e6fa; --card-border: rgba(30, 94, 171, 0.2); --card-shadow: rgba(30, 94, 171, 0.28); --card-highlight: rgba(255, 255, 255, 0.65); } /* OS/browser prefers dark, and the visitor hasn't overridden it */ @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --color-bg: #14171e; --color-bg-alt: #1b1f28; --color-text: #e7e9ee; --color-text-muted: #9aa1b0; --color-border: #2b2f3a; --color-accent: #6ba6e8; --color-accent-dark: #9fc6f0; --card-bg-start: #1d2c42; --card-bg-end: #131d2d; --card-border: rgba(255, 255, 255, 0.08); --card-shadow: rgba(0, 0, 0, 0.55); --card-highlight: rgba(255, 255, 255, 0.06); } } /* Visitor explicitly chose dark (wins over OS setting either way) */ :root[data-theme="dark"] { --color-bg: #14171e; --color-bg-alt: #1b1f28; --color-text: #e7e9ee; --color-text-muted: #9aa1b0; --color-border: #2b2f3a; --color-accent: #6ba6e8; --color-accent-dark: #9fc6f0; --card-bg-start: #1d2c42; --card-bg-end: #131d2d; --card-border: rgba(255, 255, 255, 0.08); --card-shadow: rgba(0, 0, 0, 0.55); --card-highlight: rgba(255, 255, 255, 0.06); } * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; font-family: var(--font-body); color: var(--color-text); background: var(--color-bg); line-height: 1.6; font-size: 16px; transition: background-color 0.15s ease, color 0.15s ease; } a { color: var(--color-accent); text-decoration: none; } a:hover { text-decoration: underline; } .skip-link { position: absolute; left: -999px; top: 0; background: var(--color-accent); color: #fff; padding: 0.5rem 1rem; z-index: 100; } .skip-link:focus { left: 0; } img { max-width: 100%; display: block; } .icon { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.15em; flex-shrink: 0; } h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.25; color: var(--color-text); } h1 { font-size: 1.9rem; margin: 0 0 0.25rem; } h2 { font-size: 1.5rem; margin: 2.5rem 0 1rem; padding-top: 1rem; border-top: 1px solid var(--color-border); } h3 { font-size: 1.15rem; margin: 1.75rem 0 0.75rem; } h4 { font-size: 1rem; margin: 1.25rem 0 0.35rem; } /* Header */ .site-header { border-bottom: 1px solid var(--color-border); background: var(--color-bg); position: sticky; top: 0; z-index: 20; } .header-inner { max-width: var(--max-width); margin: 0 auto; padding: 0.75rem 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; } .brand { display: flex; align-items: center; gap: 0.6rem; color: var(--color-text); } .brand:hover { text-decoration: none; } .brand-photo { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; } .brand-text { display: flex; flex-direction: column; line-height: 1.15; } .brand-name { font-weight: 600; font-size: 0.95rem; } .brand-title { font-size: 0.78rem; color: var(--color-text-muted); } .menu-toggle { display: none; background: none; border: 1px solid var(--color-border); border-radius: 6px; padding: 0.4rem 0.6rem; cursor: pointer; font-size: 0.85rem; color: var(--color-text); } .site-nav { display: flex; align-items: center; gap: 1.25rem; } .site-nav ul { list-style: none; display: flex; gap: 1.1rem; margin: 0; padding: 0; } .site-nav a { color: var(--color-text); font-size: 0.92rem; font-weight: 500; } .site-nav a.active { color: var(--color-accent); } /* Language switch grouped together with the theme toggle */ .header-controls { display: flex; align-items: center; gap: 0.6rem; flex-shrink: 0; } .lang-switch a { border: 1px solid var(--color-border); border-radius: 6px; padding: 0.3rem 0.6rem; font-size: 0.82rem; color: var(--color-text-muted); } .lang-switch a:hover { color: var(--color-accent); border-color: var(--color-accent); text-decoration: none; } /* Light/dark theme toggle button */ .theme-toggle { background: none; border: 1px solid var(--color-border); border-radius: 6px; width: 2rem; height: 2rem; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; color: var(--color-text); font-size: 1rem; line-height: 1; } .theme-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); } .theme-toggle-icon.theme-icon-sun { display: none; } .theme-toggle-icon.theme-icon-moon { display: inline; } /* Effective theme is dark (OS preference, unless overridden) -> show sun (switch to light) */ @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .theme-icon-sun { display: inline; } :root:not([data-theme="light"]) .theme-icon-moon { display: none; } } /* Visitor explicitly chose dark -> show sun (switch to light), wins over OS setting */ :root[data-theme="dark"] .theme-icon-sun { display: inline; } :root[data-theme="dark"] .theme-icon-moon { display: none; } /* Visitor explicitly chose light -> always show moon (switch to dark), wins over OS setting */ :root[data-theme="light"] .theme-icon-sun { display: none; } :root[data-theme="light"] .theme-icon-moon { display: inline; } /* Main content */ main { max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem 3rem; } /* Hero */ .hero { padding: 2.5rem 0 1rem; } .hero-inner { display: flex; gap: 1.75rem; align-items: flex-start; flex-wrap: wrap; } .hero-photo { width: 140px; height: 140px; border-radius: 12px; object-fit: cover; background: var(--color-bg-alt); flex-shrink: 0; } .hero-text { flex: 1; min-width: 260px; } .hero-role { color: var(--color-text-muted); margin: 0.1rem 0 0.5rem; font-size: 1.05rem; } .hero-affiliations { font-size: 0.92rem; margin: 0 0 0.75rem; } .hero-affiliations a { margin-right: 0; } .hero-contact { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; font-size: 0.88rem; } .hero-contact a { display: inline-flex; align-items: center; gap: 0.35rem; } .hero-interests { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--color-border); font-size: 0.9rem; } .hero-interests-label { color: var(--color-text-muted); } .hero-interests ul { list-style: none; padding: 0; margin: 0.35rem 0 0; display: flex; flex-wrap: wrap; gap: 0.4rem; } .hero-interests li { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 999px; padding: 0.2rem 0.7rem; font-size: 0.82rem; } /* In-page section nav */ .section-nav { position: sticky; top: 57px; background: var(--color-bg); padding-bottom: 0.85rem; margin-bottom: 1.75rem; z-index: 10; } .section-nav ul { list-style: none; display: flex; justify-content: center; gap: 1.25rem; margin: 0; padding: 0.6rem 0 0; flex-wrap: wrap; } .section-nav a { font-size: 0.88rem; font-weight: 600; color: var(--color-text-muted); } .section-nav a:hover { color: var(--color-accent); text-decoration: none; } /* Decorative divider under the section nav, instead of a plain border */ .section-nav::after { content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); width: 140px; height: 3px; border-radius: 999px; background: linear-gradient(90deg, transparent, var(--color-accent), transparent); } /* Blue "panel" card wrapping each main section (Biography, Papers, Teaching, Projects) */ .page-section { scroll-margin-top: 100px; margin-bottom: 2.25rem; padding: 1.75rem 1.75rem 2.25rem; border-radius: 18px; border: 1px solid var(--card-border); background: linear-gradient(155deg, var(--card-bg-start), var(--card-bg-end)); box-shadow: inset 0 1px 0 var(--card-highlight), 0 18px 30px -14px var(--card-shadow), 0 6px 14px -8px var(--card-shadow); } .page-section h2 { margin-top: 0; padding-top: 0; border-top: none; } /* About / education */ .about-intro { font-size: 1.02rem; text-align: justify; text-justify: inter-word; hyphens: auto; } .education-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; } .education-item { border: 1px solid var(--card-border); border-radius: 10px; padding: 1rem 1.1rem; background: var(--color-bg); box-shadow: 0 4px 10px -6px var(--card-shadow); } .education-item h4 { margin-top: 0; } .education-item .period { display: block; color: var(--color-text-muted); font-weight: 400; font-size: 0.85rem; margin-top: 0.15rem; } .education-item p { margin: 0.4rem 0; font-size: 0.9rem; } /* Papers */ .paper-list { padding-left: 1.25rem; } .paper-list li { margin-bottom: 0.85rem; font-size: 0.94rem; } /* Teaching */ .course-list { list-style: none; padding: 0; } .course-list li { padding: 0.35rem 0; border-bottom: 1px solid var(--color-border); font-size: 0.94rem; } .course-code { color: var(--color-accent); font-weight: 600; font-size: 0.85rem; margin-right: 0.35rem; } .thesis-list { padding-left: 1.25rem; font-size: 0.94rem; } /* Projects */ .project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; } .project-card { border: 1px solid var(--card-border); border-radius: 10px; padding: 1rem 1.1rem; background: var(--color-bg); box-shadow: 0 4px 10px -6px var(--card-shadow); } .project-card h4 { margin-top: 0; } .project-meta { font-size: 0.82rem; color: var(--color-text-muted); margin: 0 0 0.4rem; } .project-supported { font-size: 0.85rem; margin: 0.2rem 0; } .project-desc { font-size: 0.9rem; margin: 0.4rem 0 0.6rem; } .project-tags { margin: 0.5rem 0 0; } .project-tags dt { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--color-text-muted); margin-top: 0.5rem; } .project-tags dd { margin: 0.3rem 0 0; display: flex; flex-wrap: wrap; gap: 0.3rem; } .tag { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 6px; padding: 0.1rem 0.5rem; font-size: 0.78rem; } /* Materials page */ .materials-intro { color: var(--color-text-muted); } .course-materials { padding-top: 1rem; border-top: 1px solid var(--color-border); margin-top: 1.5rem; scroll-margin-top: 100px; } .course-description { color: var(--color-text-muted); font-size: 0.92rem; } .materials-file-list { list-style: none; padding: 0; } .materials-file-list li { display: flex; justify-content: space-between; gap: 1rem; padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: 8px; margin-bottom: 0.5rem; background: var(--color-bg-alt); font-size: 0.92rem; } .materials-date { color: var(--color-text-muted); font-size: 0.8rem; white-space: nowrap; } .materials-empty { color: var(--color-text-muted); font-style: italic; font-size: 0.9rem; } /* Footer */ .site-footer { border-top: 1px solid var(--color-border); margin-top: 3rem; background: var(--color-bg-alt); } .footer-inner { max-width: var(--max-width); margin: 0 auto; padding: 1.5rem 1.25rem; font-size: 0.85rem; color: var(--color-text-muted); text-align: center; } .footer-contact { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; margin-bottom: 0.6rem; } .footer-contact a { display: inline-flex; align-items: center; gap: 0.35rem; } .footer-logos { display: flex; gap: 1rem; margin-bottom: 0.6rem; } .footer-affiliations a { color: var(--color-text-muted); } /* Responsive */ @media (max-width: 720px) { .menu-toggle { display: inline-flex; align-items: center; gap: 0.4rem; } .site-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); flex-direction: column; align-items: flex-start; padding: 1rem 1.25rem; gap: 0.9rem; display: none; } .site-nav.open { display: flex; } .site-nav ul { flex-direction: column; gap: 0.75rem; } .section-nav { top: 0; } .hero-photo { width: 96px; height: 96px; } }