/* ===================================================== ZAHID HASSAN TUSHAR — Personal Academic Website Theme: Deep-space editorial with scientific precision Light/Dark theme via [data-theme] on ===================================================== */ /* ---- DARK THEME (default) ---- */ :root, [data-theme="dark"] { --serif: 'Playfair Display', Georgia, serif; --mono: 'DM Mono', 'Courier New', monospace; --sans: 'DM Sans', system-ui, sans-serif; --nav-h: 64px; --max-w: 1140px; --radius: 12px; --bg: #08090d; --bg2: #0e1018; --bg3: #13151f; --border: rgba(255,255,255,0.07); --text: #e8e9ef; --muted: #7a7f96; --accent: #4fc3f7; --accent2: #81d4fa; --gold: #f0c060; --hero-glow-1: rgba(79,195,247,0.06); --hero-glow-2: rgba(129,212,250,0.04); --sphere-bg: radial-gradient(circle at 35% 35%, #81d4fa, rgba(79,195,247,0.2) 60%, transparent); --sphere-shadow: 0 0 60px rgba(79,195,247,0.25), inset 0 0 30px rgba(255,255,255,0.05); --ring-color: rgba(79,195,247,0.15); --nav-bg: rgba(8,9,13,0.85); --card-hover-border: rgba(79,195,247,0.4); --btn-primary-text: #08090d; --rc-badge-bg: rgba(79,195,247,0.1); --rc-badge-border: rgba(79,195,247,0.2); --rc-badge-hover: rgba(79,195,247,0.2); --tag-bg: rgba(79,195,247,0.05); --tag-border: rgba(79,195,247,0.3); --contact-card-accent: linear-gradient(90deg, #4fc3f7, #81d4fa); --pub-hover: rgba(255,255,255,0.02); --theme-toggle-icon: "☀"; --heading: #ffffff; } /* ---- LIGHT THEME ---- */ [data-theme="light"] { --bg: #f4f5f8; --bg2: #eef0f5; --bg3: #ffffff; --border: rgba(0,0,0,0.09); --text: #1a1c26; --muted: #5a6080; --accent: #0277bd; --accent2: #0288d1; --gold: #b8860b; --hero-glow-1: rgba(2,119,189,0.05); --hero-glow-2: rgba(2,136,209,0.04); --sphere-bg: radial-gradient(circle at 35% 35%, #0288d1, rgba(2,119,189,0.2) 60%, transparent); --sphere-shadow: 0 0 60px rgba(2,119,189,0.15), inset 0 0 30px rgba(0,0,0,0.04); --ring-color: rgba(2,119,189,0.15); --nav-bg: rgba(244,245,248,0.90); --card-hover-border: rgba(2,119,189,0.4); --btn-primary-text: #ffffff; --rc-badge-bg: rgba(2,119,189,0.08); --rc-badge-border: rgba(2,119,189,0.2); --rc-badge-hover: rgba(2,119,189,0.18); --tag-bg: rgba(2,119,189,0.05); --tag-border: rgba(2,119,189,0.25); --contact-card-accent: linear-gradient(90deg, #0277bd, #0288d1); --pub-hover: rgba(0,0,0,0.02); --theme-toggle-icon: "☾"; --heading: #0f1117; } /* ---- THEME TOGGLE BUTTON ---- */ #theme-toggle { background: none; border: 1px solid var(--border); border-radius: 50%; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--muted); font-size: 1rem; transition: color 0.2s, border-color 0.2s, background 0.2s; flex-shrink: 0; } #theme-toggle:hover { border-color: var(--accent); color: var(--accent); background: var(--rc-badge-bg); } /* Sun icon in dark mode, moon in light mode */ #theme-toggle .icon-dark { display: block; } #theme-toggle .icon-light { display: none; } [data-theme="light"] #theme-toggle .icon-dark { display: none; } [data-theme="light"] #theme-toggle .icon-light { display: block; } /* ---- GLOBAL ---- */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { scroll-behavior: smooth; transition: background-color 0.3s, color 0.3s; } body { background: var(--bg); color: var(--text); font-family: var(--sans); font-weight: 300; line-height: 1.7; overflow-x: hidden; transition: background-color 0.3s, color 0.3s; } a { color: var(--accent); text-decoration: none; transition: color 0.2s; } a:hover { color: var(--accent2); } /* ---- NAV ---- */ #nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--nav-h); background: var(--nav-bg); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); transition: background 0.3s; } .nav-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; height: 100%; display: flex; align-items: center; justify-content: space-between; } .nav-logo { font-family: var(--mono); font-size: 1.1rem; letter-spacing: 0.2em; color: var(--accent); } .nav-links { list-style: none; display: flex; gap: 2rem; align-items: center; } .nav-links a { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); transition: color 0.2s; } .nav-links a:hover { color: var(--text); } .nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; } /* ---- HERO ---- */ #hero { min-height: 100vh; padding-top: var(--nav-h); display: flex; flex-direction: column; justify-content: center; position: relative; overflow: hidden; } #hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 60% at 75% 50%, var(--hero-glow-1) 0%, transparent 70%), radial-gradient(ellipse 40% 80% at 20% 80%, var(--hero-glow-2) 0%, transparent 60%); pointer-events: none; } .hero-grid { max-width: var(--max-w); margin: 0 auto; padding: 4rem 2rem; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 4rem; } .hero-label { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: 1.2rem; opacity: 0; animation: fadeUp 0.8s 0.1s forwards; } .hero-name { font-family: var(--serif); font-size: clamp(3rem, 6vw, 5.5rem); font-weight: 900; line-height: 1.0; color: var(--heading); opacity: 0; animation: fadeUp 0.8s 0.25s forwards; } .hero-tagline { margin-top: 1.5rem; font-size: 1.05rem; color: var(--muted); max-width: 480px; opacity: 0; animation: fadeUp 0.8s 0.4s forwards; } .hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; opacity: 0; animation: fadeUp 0.8s 0.55s forwards; } .btn { display: inline-flex; align-items: center; padding: 0.7rem 1.6rem; border-radius: 4px; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500; transition: all 0.2s; cursor: pointer; } .btn-primary { background: var(--accent); color: var(--btn-primary-text); border: 2px solid var(--accent); } .btn-primary:hover { background: var(--accent2); border-color: var(--accent2); color: var(--btn-primary-text); } .btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); } .btn-outline:hover { background: var(--rc-badge-bg); color: var(--accent2); } .hero-links { display: flex; gap: 1rem; margin-top: 1.5rem; opacity: 0; animation: fadeUp 0.8s 0.65s forwards; } .hero-links a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 50%; color: var(--muted); font-family: var(--mono); font-size: 0.85rem; transition: all 0.2s; } .hero-links a:hover { border-color: var(--accent); color: var(--accent); } /* Hero Visual */ .hero-visual { position: relative; display: flex; align-items: center; justify-content: center; height: 420px; opacity: 0; animation: fadeIn 1.2s 0.6s forwards; } .hero-sphere { width: 120px; height: 120px; border-radius: 50%; background: var(--sphere-bg); box-shadow: var(--sphere-shadow); position: relative; z-index: 2; animation: float 6s ease-in-out infinite; } .hero-photo { width:280px; height:280px; border-radius:50%; object-fit:cover; border:3px solid var(--accent); } .orbital-ring { position: absolute; border-radius: 50%; border: 1px solid var(--ring-color); animation: spin linear infinite; } .ring-1 { width: 200px; height: 200px; animation-duration: 12s; } .ring-2 { width: 300px; height: 300px; border-style: dashed; animation-duration: 20s; animation-direction: reverse; } .ring-3 { width: 380px; height: 380px; animation-duration: 32s; opacity: 0.5; } .hero-scroll { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--muted); text-transform: uppercase; animation: pulse 2s ease-in-out infinite; } /* ---- SECTIONS ---- */ section { padding: 6rem 0; } section:nth-child(even) { background: var(--bg2); } .section-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; } .section-header { display: flex; align-items: baseline; gap: 1.5rem; margin-bottom: 3rem; } .section-num { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); letter-spacing: 0.15em; opacity: 0.7; } .section-title { font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 2.8rem); font-weight: 700; color: var(--heading); } /* ---- ABOUT ---- */ .about-grid { display: grid; grid-template-columns: 180px 1fr; gap: 4rem; } .about-meta { display: flex; flex-direction: column; gap: 0.5rem; } .about-lead { font-size: 1.15rem; color: var(--text); font-weight: 400; line-height: 1.8; margin-bottom: 1.2rem; } .interest-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.8rem 0; } .interest-tags span { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; padding: 0.3rem 0.8rem; border: 1px solid var(--tag-border); border-radius: 2px; color: var(--accent); background: var(--tag-bg); } .edu-timeline { margin-top: 2.5rem; } .edu-timeline h3 { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 1.5rem; } .edu-item { display: grid; grid-template-columns: 90px 1fr; gap: 1.5rem; padding: 1.2rem 0; border-top: 1px solid var(--border); } .edu-year { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); padding-top: 0.15rem; } .edu-body strong { display: block; color: var(--heading); font-weight: 500; } .edu-body span { display: block; font-size: 0.88rem; color: var(--muted); margin-top: 0.15rem; } .edu-body em { display: block; font-size: 0.83rem; color: var(--accent); font-style: italic; margin-top: 0.3rem; } /* ---- RESEARCH ---- */ .research-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; margin-bottom: 4rem; } .research-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; position: relative; overflow: hidden; transition: border-color 0.2s, transform 0.2s; } .research-card:hover { border-color: var(--card-hover-border); transform: translateY(-3px); } .research-card.featured { grid-column: span 1; } .rc-accent { position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); } .rc-tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); opacity: 0.8; } .research-card h3 { font-family: var(--serif); font-size: 1.15rem; color: var(--heading); margin: 0.6rem 0 0.8rem; line-height: 1.4; } .research-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; } .rc-badges { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 1rem; } .rc-badges span, .rc-badges a { font-family: var(--mono); font-size: 0.68rem; padding: 0.2rem 0.6rem; border-radius: 3px; background: var(--rc-badge-bg); border: 1px solid var(--rc-badge-border); color: var(--accent); } .rc-link { text-decoration: none; transition: background 0.2s; } .rc-link:hover { background: var(--rc-badge-hover) !important; } .skills-row { margin-top: 2rem; border-top: 1px solid var(--border); padding-top: 2.5rem; } .skills-row h3 { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 1.5rem; } .skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; } .skill-group h4 { font-family: var(--mono); font-size: 0.75rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.6rem; } .skill-group p { font-size: 0.85rem; color: var(--muted); line-height: 1.7; } /* ---- PUBLICATIONS ---- */ .pub-filter { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2.5rem; } .pf-btn { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; padding: 0.4rem 1rem; border: 1px solid var(--border); border-radius: 3px; background: transparent; color: var(--muted); cursor: pointer; transition: all 0.2s; } .pf-btn.active, .pf-btn:hover { background: var(--rc-badge-bg); border-color: var(--card-hover-border); color: var(--accent); } .pub-list { display: flex; flex-direction: column; gap: 0; } .pub-item { display: grid; grid-template-columns: 60px 1fr; gap: 2rem; padding: 1.4rem 0; border-top: 1px solid var(--border); transition: background 0.15s; } .pub-item:hover { background: var(--pub-hover); } .pub-year { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); padding-top: 0.2rem; } .pub-venue { display: inline-block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem; } .pub-venue.venue-top { color: var(--gold); } .pub-body h4 { font-family: var(--serif); font-size: 1rem; color: var(--heading); font-weight: 500; line-height: 1.5; margin-bottom: 0.3rem; } .pub-authors { font-size: 0.84rem; color: var(--muted); } .poster-section { margin-top: 3rem; border-top: 1px solid var(--border); padding-top: 2rem; } .poster-section h3 { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.2em; color: var(--muted); margin-bottom: 1.2rem; } .poster-list { list-style: none; display: flex; flex-direction: column; gap: 0.8rem; } .poster-list li { font-size: 0.9rem; color: var(--muted); display: flex; gap: 1rem; align-items: baseline; } .p-venue { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); white-space: nowrap; opacity: 0.8; } /* ---- TEACHING ---- */ .teaching-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; } .teaching-block { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem; } .teaching-block h3 { font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--accent); margin-bottom: 0.8rem; } .teaching-block p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; } .award-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; } .award-list li { font-size: 0.88rem; color: var(--muted); } /* ---- CONTACT ---- */ #contact { background: var(--bg); border-top: 1px solid var(--border); } .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; } .contact-text .section-num { display: block; margin-bottom: 0.5rem; } .contact-text p { margin-top: 1.2rem; color: var(--muted); font-size: 0.95rem; line-height: 1.8; } .contact-links { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; } .contact-item { display: flex; align-items: center; gap: 1rem; color: var(--muted); font-size: 0.9rem; transition: color 0.2s; } .contact-item:hover { color: var(--accent); } .ci-icon { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; border: 1px solid var(--border); border-radius: 50%; font-family: var(--mono); font-size: 0.85rem; color: var(--accent); flex-shrink: 0; transition: border-color 0.2s; } .contact-item:hover .ci-icon { border-color: var(--accent); } .contact-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.2rem; position: relative; } .contact-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--contact-card-accent); } .cc-label { font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--muted); margin-bottom: 0.3rem; } .cc-role { font-family: var(--serif); font-size: 1.4rem; color: var(--heading); font-weight: 700; margin-bottom: 0.2rem; } .cc-org { color: var(--accent); font-size: 0.9rem; } .cc-dept { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.5rem; } .cc-divider { height: 1px; background: var(--border); margin: 1.2rem 0; } .cc-adv { color: var(--text); font-size: 0.9rem; margin-bottom: 0.2rem; } /* ---- FOOTER ---- */ footer { background: var(--bg); border-top: 1px solid var(--border); padding: 2rem 0; } .footer-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; font-family: var(--mono); font-size: 0.78rem; color: var(--muted); } .footer-sep { opacity: 0.4; } /* ---- ANIMATIONS ---- */ @keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } } @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } } @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } } @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } } @keyframes pulse { 0%, 100% { opacity: 0.4; } 50% { opacity: 1; } } /* Scroll reveal */ .reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; } .reveal.visible { opacity: 1; transform: translateY(0); } /* ---- RESPONSIVE ---- */ @media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } .hero-visual { display: none; } .about-grid { grid-template-columns: 1fr; gap: 1.5rem; } .about-meta { flex-direction: row; align-items: baseline; gap: 1rem; } .contact-grid { grid-template-columns: 1fr; } .nav-links { display: none; } .nav-toggle { display: block; } .nav-links.open { display: flex; flex-direction: column; position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--bg2); padding: 1.5rem 2rem; border-bottom: 1px solid var(--border); gap: 1.2rem; } } @media (max-width: 600px) { .hero-name { font-size: 2.8rem; } .pub-item { grid-template-columns: 50px 1fr; gap: 1rem; } .research-grid { grid-template-columns: 1fr; } }