/* ========================================================================== Aking Huang — personal site Auto light/dark via prefers-color-scheme, with a manual override (data-theme="light" | "dark" on ). Palette: deep navy + teal accent, carried across both themes. ========================================================================== */ /* --- Design tokens -------------------------------------------------------- */ :root { --navy-900: #070D18; --navy-800: #0B1220; --navy-700: #111A2B; --navy-600: #16223A; --navy-500: #1E2C48; --teal-400: #2DD4BF; --teal-500: #14B8A6; --teal-600: #0D9488; --teal-700: #0F766E; --sky-400: #38BDF8; --sky-600: #0284C7; --radius-sm: 8px; --radius: 14px; --radius-lg: 22px; --maxw: 1080px; --gutter: 24px; --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; --font-mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace; --ease: cubic-bezier(0.22, 1, 0.36, 1); } /* Light theme (default when the OS asks for light) */ :root, html[data-theme="light"] { --bg: #F6F9FC; --bg-tint: #EAF1F8; --surface: #FFFFFF; --surface-2: #F1F5FA; --surface-3: #E6EDF6; --border: rgba(11, 18, 32, 0.10); --border-strong: rgba(11, 18, 32, 0.18); --text: #0B1220; --text-soft: #33425C; --text-dim: #63748F; --accent: #0D9488; --accent-soft: rgba(13, 148, 136, 0.12); --accent-line: rgba(13, 148, 136, 0.35); --accent-2: #0284C7; --accent-2-soft: rgba(2, 132, 199, 0.12); --header-bg: rgba(246, 249, 252, 0.82); --shadow-sm: 0 1px 2px rgba(11, 18, 32, 0.06); --shadow: 0 2px 4px rgba(11, 18, 32, 0.05), 0 12px 28px rgba(11, 18, 32, 0.07); --shadow-lg: 0 4px 8px rgba(11, 18, 32, 0.06), 0 24px 56px rgba(11, 18, 32, 0.12); --glow: radial-gradient(60% 60% at 50% 0%, rgba(13, 148, 136, 0.16), transparent 70%); color-scheme: light; } /* Dark theme */ @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --bg: #080E1A; --bg-tint: #0B1220; --surface: #0F1729; --surface-2: #141F35; --surface-3: #1B2842; --border: rgba(255, 255, 255, 0.09); --border-strong: rgba(255, 255, 255, 0.18); --text: #E9EFF8; --text-soft: #C2CFE2; --text-dim: #8A9CB8; --accent: #2DD4BF; --accent-soft: rgba(45, 212, 191, 0.14); --accent-line: rgba(45, 212, 191, 0.40); --accent-2: #38BDF8; --accent-2-soft: rgba(56, 189, 248, 0.14); --header-bg: rgba(8, 14, 26, 0.78); --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 12px 28px rgba(0, 0, 0, 0.45); --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.35), 0 24px 56px rgba(0, 0, 0, 0.55); --glow: radial-gradient(60% 60% at 50% 0%, rgba(45, 212, 191, 0.18), transparent 70%); color-scheme: dark; } } html[data-theme="dark"] { --bg: #080E1A; --bg-tint: #0B1220; --surface: #0F1729; --surface-2: #141F35; --surface-3: #1B2842; --border: rgba(255, 255, 255, 0.09); --border-strong: rgba(255, 255, 255, 0.18); --text: #E9EFF8; --text-soft: #C2CFE2; --text-dim: #8A9CB8; --accent: #2DD4BF; --accent-soft: rgba(45, 212, 191, 0.14); --accent-line: rgba(45, 212, 191, 0.40); --accent-2: #38BDF8; --accent-2-soft: rgba(56, 189, 248, 0.14); --header-bg: rgba(8, 14, 26, 0.78); --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 0 12px 28px rgba(0, 0, 0, 0.45); --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.35), 0 24px 56px rgba(0, 0, 0, 0.55); --glow: radial-gradient(60% 60% at 50% 0%, rgba(45, 212, 191, 0.18), transparent 70%); color-scheme: dark; } /* --- Base ---------------------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; } html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; } body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-sans); font-size: 16px; line-height: 1.7; letter-spacing: 0.005em; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; transition: background-color 0.3s var(--ease), color 0.3s var(--ease); } img { max-width: 100%; display: block; } a { color: inherit; text-decoration: none; } ::selection { background: var(--accent-soft); color: var(--text); } :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; } .wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); } .skip { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--surface); color: var(--text); padding: 10px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); } .skip:focus { left: 16px; top: 16px; } /* --- Header -------------------------------------------------------------- */ .site-header { position: sticky; top: 0; z-index: 100; background: var(--header-bg); backdrop-filter: saturate(180%) blur(18px); -webkit-backdrop-filter: saturate(180%) blur(18px); border-bottom: 1px solid transparent; transition: border-color 0.25s var(--ease), background-color 0.3s var(--ease); } .site-header.scrolled { border-bottom-color: var(--border); } .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 68px; } .brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.01em; font-size: 16px; white-space: nowrap; } .brand .mark { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: #04211E; background: linear-gradient(140deg, var(--teal-400), var(--sky-400)); box-shadow: 0 2px 10px var(--accent-soft); flex-shrink: 0; } .brand .sub { color: var(--text-dim); font-weight: 400; font-size: 13px; } .nav { display: flex; align-items: center; gap: 4px; } .nav a { padding: 8px 12px; border-radius: var(--radius-sm); font-size: 14px; color: var(--text-dim); font-weight: 500; transition: color 0.18s var(--ease), background-color 0.18s var(--ease); } .nav a:hover { color: var(--text); background: var(--surface-2); } .nav a.active { color: var(--accent); background: var(--accent-soft); } .header-actions { display: flex; align-items: center; gap: 8px; } .theme-toggle { width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text-soft); display: grid; place-items: center; cursor: pointer; transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease); flex-shrink: 0; } .theme-toggle:hover { border-color: var(--border-strong); color: var(--text); transform: translateY(-1px); } .theme-toggle svg { width: 17px; height: 17px; } .theme-toggle .icon-moon, .theme-toggle .icon-sun, .theme-toggle .icon-auto { display: none; } html[data-theme-mode="auto"] .theme-toggle .icon-auto { display: block; } html[data-theme-mode="light"] .theme-toggle .icon-sun { display: block; } html[data-theme-mode="dark"] .theme-toggle .icon-moon { display: block; } /* --- Buttons ------------------------------------------------------------- */ .btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 10px; font-size: 14.5px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease); white-space: nowrap; font-family: inherit; } .btn svg { width: 16px; height: 16px; flex-shrink: 0; } .btn-primary { background: var(--accent); color: #04211E; box-shadow: 0 4px 16px var(--accent-soft); } .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 26px var(--accent-line); } .btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border-strong); } .btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent); } /* --- Hero ---------------------------------------------------------------- */ .hero { position: relative; padding: 92px 0 72px; overflow: hidden; } .hero::before { content: ""; position: absolute; inset: -140px -20% auto; height: 620px; background: var(--glow); pointer-events: none; z-index: 0; } .hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(70% 55% at 50% 12%, #000 0%, transparent 78%); -webkit-mask-image: radial-gradient(70% 55% at 50% 12%, #000 0%, transparent 78%); opacity: 0.55; pointer-events: none; z-index: 0; } .hero .wrap { position: relative; z-index: 1; } .eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 6px 14px 6px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 13px; color: var(--text-soft); font-weight: 500; margin-bottom: 26px; } .eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); flex-shrink: 0; animation: pulse 2.6s var(--ease) infinite; } @keyframes pulse { 0%, 100% { box-shadow: 0 0 0 4px var(--accent-soft); } 50% { box-shadow: 0 0 0 8px transparent; } } .hero h1 { font-size: clamp(2.1rem, 5.6vw, 3.45rem); line-height: 1.16; letter-spacing: -0.028em; margin: 0 0 20px; font-weight: 700; max-width: 17ch; } .hero h1 .accent { background: linear-gradient(100deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; } .hero p.lede { font-size: clamp(1rem, 1.9vw, 1.15rem); color: var(--text-soft); max-width: 60ch; margin: 0 0 34px; } .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; } .chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; } .chips li { font-family: var(--font-mono); font-size: 12.5px; padding: 5px 11px; border-radius: 7px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-dim); transition: color 0.18s var(--ease), border-color 0.18s var(--ease); } .chips li:hover { color: var(--accent); border-color: var(--accent-line); } /* --- Stat strip ---------------------------------------------------------- */ .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-top: 56px; } .stat { background: var(--surface); padding: 20px 22px; } .stat .num { font-size: 1.55rem; font-weight: 700; letter-spacing: -0.02em; font-family: var(--font-mono); color: var(--accent); line-height: 1.3; } .stat .lbl { font-size: 13px; color: var(--text-dim); margin-top: 2px; } /* --- Sections ------------------------------------------------------------ */ section { scroll-margin-top: 88px; } .section { padding: 78px 0; } .section.tinted { background: var(--bg-tint); border-block: 1px solid var(--border); } .section-head { margin-bottom: 40px; max-width: 62ch; } .section-head .kicker { font-family: var(--font-mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); display: block; margin-bottom: 12px; } .section-head h2 { font-size: clamp(1.5rem, 3.3vw, 2.05rem); letter-spacing: -0.022em; margin: 0 0 12px; font-weight: 680; line-height: 1.25; } .section-head p { color: var(--text-dim); margin: 0; font-size: 15.5px; } /* --- Project grid -------------------------------------------------------- */ .grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; } .card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease); overflow: hidden; } .card::before { content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: 0; transition: opacity 0.22s var(--ease); } .card:hover { transform: translateY(-4px); border-color: var(--accent-line); box-shadow: var(--shadow); } .card:hover::before { opacity: 1; } .card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; } .card-icon { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); flex-shrink: 0; } .card-icon svg { width: 20px; height: 20px; } .tag { font-family: var(--font-mono); font-size: 11px; padding: 4px 9px; border-radius: 6px; white-space: nowrap; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-dim); } .tag.live { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent); } .tag.wip { background: var(--accent-2-soft); border-color: rgba(56, 189, 248, 0.32); color: var(--accent-2); } .card h3 { font-size: 1.03rem; margin: 0 0 9px; font-weight: 640; letter-spacing: -0.012em; } .card p { font-size: 14.3px; color: var(--text-dim); margin: 0 0 18px; flex-grow: 1; line-height: 1.68; } .stack { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0 0 16px; } .stack li { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-dim); background: var(--surface-2); padding: 3px 8px; border-radius: 5px; } .card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--accent); margin-top: auto; align-self: flex-start; } .card-link svg { width: 14px; height: 14px; transition: transform 0.2s var(--ease); } .card-link:hover svg { transform: translateX(3px); } /* --- Notes --------------------------------------------------------------- */ .notes { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; } .note { background: var(--surface); padding: 20px 24px; display: flex; align-items: baseline; gap: 20px; transition: background-color 0.18s var(--ease); } .note:hover { background: var(--surface-2); } .note .date { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-dim); white-space: nowrap; flex-shrink: 0; min-width: 88px; } .note .title { font-weight: 560; font-size: 15px; } .note .title span { color: var(--text-dim); font-weight: 400; } /* --- About --------------------------------------------------------------- */ .about-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 48px; align-items: start; } .prose p { margin: 0 0 18px; color: var(--text-soft); font-size: 15.5px; } .prose p:last-child { margin-bottom: 0; } .prose strong { color: var(--text); font-weight: 620; } .facts { display: grid; gap: 12px; } .fact { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; } .fact .k { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-dim); margin-bottom: 7px; } .fact .v { font-size: 14.5px; font-weight: 550; line-height: 1.6; } /* --- Contact ------------------------------------------------------------- */ .contact-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 44px; text-align: center; position: relative; overflow: hidden; box-shadow: var(--shadow-sm); } .contact-card::before { content: ""; position: absolute; inset: auto -30% -70% -30%; height: 320px; background: radial-gradient(50% 50% at 50% 50%, var(--accent-soft), transparent 70%); pointer-events: none; } .contact-card > * { position: relative; } .contact-card h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); margin: 0 0 12px; letter-spacing: -0.02em; font-weight: 680; } .contact-card p { color: var(--text-dim); margin: 0 auto 28px; max-width: 46ch; font-size: 15.5px; } .contact-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 22px; } .contact-meta { font-family: var(--font-mono); font-size: 13px; color: var(--text-dim); display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: center; } .contact-meta a:hover { color: var(--accent); } .copy-btn { position: relative; } .copy-btn .copied { position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%) translateY(4px); background: var(--text); color: var(--bg); font-size: 12px; padding: 5px 10px; border-radius: 6px; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s var(--ease), transform 0.2s var(--ease); font-family: var(--font-mono); } .copy-btn.done .copied { opacity: 1; transform: translateX(-50%) translateY(0); } /* --- Footer -------------------------------------------------------------- */ .site-footer { border-top: 1px solid var(--border); padding: 30px 0; margin-top: 20px; } .footer-inner { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; font-size: 13.5px; color: var(--text-dim); } .footer-inner a:hover { color: var(--accent); } .footer-links { display: flex; gap: 18px; flex-wrap: wrap; } /* --- Reveal animation ---------------------------------------------------- */ .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); } .reveal.in { opacity: 1; transform: none; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; } } /* --- Responsive ---------------------------------------------------------- */ @media (max-width: 880px) { .about-grid { grid-template-columns: 1fr; gap: 32px; } .hero { padding: 68px 0 56px; } .section { padding: 60px 0; } } @media (max-width: 720px) { :root { --gutter: 18px; } .nav { display: none; } .brand .sub { display: none; } .contact-card { padding: 32px 22px; } .note { flex-direction: column; gap: 4px; } .note .date { min-width: 0; } .hero h1 { max-width: none; } .stats { margin-top: 40px; } } @media (max-width: 420px) { .hero-actions .btn { width: 100%; justify-content: center; } .contact-actions .btn { width: 100%; justify-content: center; } }