/* =========================================================== Personal website — Philip Wojcicki Two-column layout: fixed sidebar (left) + scrollable main (right). Plain CSS. Mobile-first. No build step. =========================================================== */ :root { /* Palette — light mode (default) */ --color-bg: #ffffff; --color-surface: #f7f8fa; --color-text: #1a1f2e; --color-text-soft: #4a5266; --color-text-muted: #8a92a3; --color-border: #e6e8ee; --color-primary: #1d3a8a; /* Imperial-ish blue */ --color-primary-soft: #e8edf8; --color-accent: #0a66c2; /* Theme-dependent special-case colors */ --color-avatar-border: #ffffff; --color-topnav-bg: rgba(255, 255, 255, 0.85); --color-shadow: rgba(15, 23, 42, 0.06); /* CV button — matches the brick-red used in the source CV */ --color-cv: #a5300f; --color-cv-hover: #7d2509; /* Layout */ --sidebar-width: 320px; --content-max-width: 880px; --topnav-height: 56px; /* Type */ --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; /* Effects */ --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px; --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04); --shadow-md: 0 4px 12px var(--color-shadow); --transition: 150ms ease; color-scheme: light; } /* Palette — dark mode */ [data-theme="dark"] { --color-bg: #0e1117; --color-surface: #161b22; --color-text: #e6edf3; --color-text-soft: #b1bac4; --color-text-muted: #7d8590; --color-border: #30363d; --color-primary: #58a6ff; --color-primary-soft: rgba(56, 139, 253, 0.18); --color-accent: #79c0ff; --color-avatar-border: #21262d; --color-topnav-bg: rgba(14, 17, 23, 0.85); --color-shadow: rgba(0, 0, 0, 0.45); color-scheme: dark; } /* ----- Reset ----- */ *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; /* Prevent the browser's rubber-band overscroll from showing a stripe of the body background above the sidebar when scrolling past the top. */ overscroll-behavior: none; /* Fallback for browsers that ignore overscroll-behavior: paint with the sidebar surface so any overscroll blends with it seamlessly. */ background: var(--color-surface); } body { margin: 0; font-family: var(--font-sans); font-size: 16px; line-height: 1.65; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } img { max-width: 100%; display: block; } a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); } a:hover { color: var(--color-primary); text-decoration: underline; } ul { padding: 0; margin: 0; list-style: none; } h1, h2, h3 { margin: 0; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em; } p { margin: 0 0 0.75em; } /* Skip link for keyboard users. Hidden by translating it 100% above its own height (more reliable than a fixed pixel offset, which would peek through if the element is taller than the offset — that was visible as a thin blue bar at top-left). */ .skip-link { position: fixed; top: 8px; left: 8px; background: var(--color-primary); color: #fff; padding: 8px 12px; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500; z-index: 100; transform: translateY(calc(-100% - 24px)); transition: transform 150ms ease; } .skip-link:focus, .skip-link:focus-visible { transform: translateY(0); outline: 2px solid var(--color-bg); outline-offset: 2px; text-decoration: none; color: #fff; } /* ----- Layout ----- */ .layout { display: grid; grid-template-columns: 1fr; min-height: 100vh; } @media (min-width: 900px) { .layout { grid-template-columns: var(--sidebar-width) 1fr; } } /* =========================================================== Sidebar =========================================================== */ .sidebar { background: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 2.5rem 1.5rem; } @media (min-width: 900px) { .sidebar { border-right: 1px solid var(--color-border); border-bottom: none; position: sticky; top: 0; align-self: start; height: 100vh; overflow-y: auto; padding: 3rem 1.75rem; } } .sidebar-inner { max-width: 280px; margin: 0 auto; text-align: center; } .avatar { width: 168px; height: 168px; border-radius: 50%; margin: 0 auto 1.25rem; object-fit: cover; border: 3px solid var(--color-avatar-border); box-shadow: var(--shadow-md); } .name { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.25rem; letter-spacing: -0.02em; } .title { margin: 0; color: var(--color-text-soft); font-weight: 500; } .affiliation { margin: 0.15rem 0 0; color: var(--color-text-soft); font-size: 0.95rem; } .affiliation a { color: var(--color-primary); } /* Research areas — stacked list under affiliation */ .research-areas { margin: 1.6rem 0 1.5rem; /* extra breathing room above */ display: flex; flex-direction: column; gap: 0.25rem; text-align: center; } .research-areas li { font-size: 0.88rem; color: var(--color-text-soft); line-height: 1.45; } /* Contact list — centered rows of icon + label */ .contact { display: flex; flex-direction: column; align-items: center; /* center each row horizontally */ gap: 0.4rem; margin-bottom: 1.5rem; } .contact li { display: block; } .contact a { display: inline-flex; align-items: center; justify-content: center; gap: 0.65rem; padding: 0.45rem 0.85rem; border-radius: var(--radius-sm); color: var(--color-text-soft); font-size: 0.9rem; transition: background var(--transition), color var(--transition); } .contact a:hover { background: var(--color-primary-soft); color: var(--color-primary); text-decoration: none; } .contact a i { font-size: 1.05rem; color: var(--color-primary); width: 1.25rem; text-align: center; flex-shrink: 0; } /* CV button — uses the same brick-red as the source CV */ .cv-button { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; width: 100%; padding: 0.65rem 1rem; background: var(--color-cv); color: #fff; border-radius: var(--radius-md); font-weight: 500; font-size: 0.9rem; transition: background var(--transition), transform var(--transition); } .cv-button:hover { background: var(--color-cv-hover); color: #fff; text-decoration: none; transform: translateY(-1px); } /* =========================================================== Main content =========================================================== */ .main { display: flex; flex-direction: column; min-width: 0; /* prevents grid blowout */ } /* Sticky section navigation — links + theme toggle are one centered group */ .topnav { position: sticky; top: 0; z-index: 10; background: var(--color-topnav-bg); backdrop-filter: saturate(180%) blur(12px); -webkit-backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--color-border); height: var(--topnav-height); display: flex; align-items: center; justify-content: center; /* centers the whole nav group horizontally */ gap: 0.5rem; padding: 0 1rem; overflow-x: auto; /* let the whole nav scroll if it doesn't fit */ scrollbar-width: none; } .topnav::-webkit-scrollbar { display: none; } .topnav > ul { display: flex; gap: 0.25rem; flex-shrink: 0; /* keep links a stable size; nav itself scrolls */ } .topnav a { display: inline-block; padding: 0.5rem 0.85rem; border-radius: var(--radius-sm); color: var(--color-text-soft); font-size: 0.92rem; font-weight: 500; white-space: nowrap; transition: background var(--transition), color var(--transition); } .topnav a:hover { background: var(--color-primary-soft); color: var(--color-primary); text-decoration: none; } .topnav a.active { color: var(--color-primary); background: var(--color-primary-soft); } @media (min-width: 900px) { .topnav { padding: 0 3rem; } } /* Theme toggle button (right side of the navbar) */ .theme-toggle { flex-shrink: 0; width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid var(--color-border); background: transparent; color: var(--color-text-soft); font-size: 0.95rem; cursor: pointer; padding: 0; transition: background var(--transition), color var(--transition), border-color var(--transition); } .theme-toggle:hover { background: var(--color-primary-soft); color: var(--color-primary); border-color: var(--color-primary-soft); } .theme-toggle:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; } /* Show the moon when light, the sun when dark — single icon visible */ .theme-toggle .icon-dark { display: none; } [data-theme="dark"] .theme-toggle .icon-light { display: none; } [data-theme="dark"] .theme-toggle .icon-dark { display: inline-block; } /* Content wrapper */ .content { width: 100%; max-width: var(--content-max-width); margin: 0 auto; padding: 2rem 1.5rem 4rem; } @media (min-width: 900px) { .content { padding: 3rem 3rem 5rem; } } /* ----- Sections ----- */ .section { padding-top: 0.75rem; margin-bottom: 1.75rem; /* Offset anchor jumps so headings aren't hidden behind topnav */ scroll-margin-top: calc(var(--topnav-height) + 16px); } .section:first-of-type { padding-top: 0.25rem; } .section-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--color-border); color: var(--color-text); letter-spacing: -0.02em; } /* About section uses justified body text for a polished bio look */ #about p { text-align: justify; hyphens: auto; } .subsection-title { font-size: 0.85rem; font-weight: 600; color: var(--color-text-soft); margin: 0 0 0.5rem; text-transform: uppercase; letter-spacing: 0.06em; } /* ----- Entry blocks (jobs, education, projects) ----- */ .entry { margin-bottom: 1.75rem; } .entry:last-child { margin-bottom: 0; } .entry-header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1rem; margin-bottom: 0.5rem; } .entry-title { font-size: 1.075rem; font-weight: 600; color: var(--color-text); margin-bottom: 0.15rem; } .entry-org { margin: 0; font-size: 0.95rem; color: var(--color-text-soft); } .entry-org a { color: var(--color-accent); font-weight: 500; } .entry-date { font-family: var(--font-mono); font-size: 0.82rem; color: var(--color-text-muted); white-space: nowrap; flex-shrink: 0; } .entry-points { margin: 0.5rem 0 0; padding-left: 1.1rem; list-style: disc; } .entry-points li { margin-bottom: 0.35rem; color: var(--color-text-soft); line-height: 1.6; } .entry-points li::marker { color: var(--color-primary); } .entry-points li strong { color: var(--color-text); font-weight: 600; } .entry-points-intro { margin: 0.25rem 0 0.6rem; color: var(--color-text-soft); } .muted { color: var(--color-text-muted); } .dot { margin: 0 0.4rem; color: var(--color-text-muted); } /* Research-project venue tag, e.g. [FCCM] or [ICCD] */ .venue { color: var(--color-text-muted); font-weight: 500; margin-left: 0.15rem; } .venue a { color: var(--color-text-soft); font-weight: 500; } .venue a:hover { color: var(--color-primary); } /* ----- Tag lists (talks, reviewer, programming) ----- */ .tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.25rem; } .tag-list li { display: inline-block; padding: 0.3rem 0.7rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.85rem; color: var(--color-text-soft); font-weight: 500; transition: background var(--transition), border-color var(--transition), color var(--transition); } .tag-list li a { color: inherit; text-decoration: none; } .tag-list li:has(a):hover { background: var(--color-primary-soft); border-color: var(--color-primary-soft); color: var(--color-primary); cursor: pointer; } /* ----- Skills list ----- */ .skills-group { margin-bottom: 1.5rem; } .skills-group:last-child { margin-bottom: 0; } .skills-list { margin-top: 0.4rem; display: grid; gap: 0.4rem; } .skills-list li { padding: 0.5rem 0.75rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-text-soft); font-size: 0.92rem; } .skills-list li strong { color: var(--color-text); font-weight: 600; margin-right: 0.25rem; } /* ----- Footer ----- */ .footer { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--color-border); text-align: center; color: var(--color-text-muted); font-size: 0.85rem; } /* =========================================================== Print =========================================================== */ @media print { .topnav, .cv-button, .skip-link, .theme-toggle { display: none; } .layout { display: block; } .sidebar { border: none; background: transparent; page-break-after: avoid; } .content { max-width: none; padding: 0; } a { color: var(--color-text); text-decoration: none; } } /* =========================================================== Reduced motion =========================================================== */ @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } }