/* ========================================================================= albert-einstein.info — Design System Self-hosted fonts · light/dark themes · editorial science layout ========================================================================= */ /* ---------- Fonts (self-hosted, GDPR-friendly) ---------- */ @font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("/assets/fonts/inter-var-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; } @font-face { font-family: "Fraunces"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("/assets/fonts/fraunces-var-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215; } /* ---------- Theme tokens ---------- */ :root { --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; --font-display: "Fraunces", Georgia, "Times New Roman", serif; /* Light theme (warm paper) */ --bg: #faf8f3; --bg-soft: #f2efe7; --bg-elevated: #ffffff; --surface: #ffffff; --surface-2: #f6f3ec; --ink: #1c1b19; --ink-soft: #4a4742; --ink-faint: #6f6b63; --line: #e3ddd1; --line-strong: #d2cabb; --accent: #2f5fd0; --accent-ink: #234aa8; --accent-soft: #e7edfb; --gold: #b9871f; --gold-soft: #f4e9cf; /* Gedankenlabor: festes Farbpaar Beobachter A (Bahnsteig/Erde) und B (Zug/Rakete) in ALLEN Experimenten */ --beob-a: #1f8a7e; --beob-a-soft: #d7efec; --beob-b: #d4573f; --beob-b-soft: #f8e1dc; --danger: #c0392b; --shadow-sm: 0 1px 2px rgba(28, 27, 25, .06), 0 2px 8px rgba(28, 27, 25, .05); --shadow-md: 0 8px 24px rgba(28, 27, 25, .10), 0 2px 6px rgba(28, 27, 25, .06); --shadow-lg: 0 24px 60px rgba(28, 27, 25, .16); --radius: 14px; --radius-lg: 22px; --radius-sm: 9px; --maxw: 1180px; --readw: 720px; --header-h: 64px; color-scheme: light; } [data-theme="dark"] { --bg: #0d1017; --bg-soft: #11151f; --bg-elevated: #161b27; --surface: #161b27; --surface-2: #1c2230; --ink: #eef1f6; --ink-soft: #b9c1d0; --ink-faint: #8a93a6; --line: #262d3c; --line-strong: #313a4d; --accent: #7aa2ff; --accent-ink: #a9c2ff; --accent-soft: #18233d; --gold: #e8b84b; --gold-soft: #2a2415; --beob-a: #4cc3b4; --beob-a-soft: #12302d; --beob-b: #f08166; --beob-b-soft: #3a1f19; --danger: #ff6b5e; --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4); --shadow-md: 0 10px 30px rgba(0, 0, 0, .45); --shadow-lg: 0 30px 70px rgba(0, 0, 0, .55); color-scheme: dark; } /* ---------- Reset ---------- */ *, *::before, *::after { box-sizing: border-box; } * { margin: 0; } html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; } } body { font-family: var(--font-sans); background: var(--bg); color: var(--ink); line-height: 1.7; font-size: 1.0625rem; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; transition: background-color .4s ease, color .4s ease; } img, svg, video { display: block; max-width: 100%; height: auto; } a { color: var(--accent-ink); text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent); text-underline-offset: 3px; } a:hover { text-decoration-color: currentColor; } button { font: inherit; color: inherit; cursor: pointer; } :focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; } ::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); } /* ---------- Layout ---------- */ .wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2.5rem); } /* Vorlese-Leiste als EIGENSTÄNDIGER Container (nicht .wrap) → gleiche Inhaltsbreite wie der Content, ohne mit konkurrierenden .wrap-Regeln zu kollidieren. */ .ra-band { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2.5rem); } .read { max-width: var(--readw); margin-inline: auto; } .section { padding-block: clamp(3rem, 8vw, 6rem); } .section--tight { padding-block: clamp(2rem, 5vw, 3.5rem); } .section--alt { background: var(--bg-soft); } .divider { height: 1px; background: var(--line); border: 0; } /* ---------- Typography ---------- */ h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; letter-spacing: -.01em; color: var(--ink); } h1 { font-size: clamp(2.3rem, 6vw, 4rem); font-weight: 600; } h2 { font-size: clamp(1.8rem, 4vw, 2.75rem); } h3 { font-size: clamp(1.3rem, 2.6vw, 1.7rem); } h4 { font-size: 1.15rem; font-family: var(--font-sans); font-weight: 700; letter-spacing: 0; } p { margin-block: 0 1.1em; } .read p, .read ul, .read ol { font-size: 1.09rem; } .lead { font-size: clamp(1.15rem, 2.2vw, 1.4rem); line-height: 1.55; color: var(--ink-soft); font-weight: 400; } strong, b { font-weight: 650; color: var(--ink); } .read ul, .read ol { padding-left: 1.3em; margin-block: 0 1.2em; } .read li { margin-block: .35em; } .eyebrow { display: inline-flex; align-items: center; gap: .5em; font-family: var(--font-sans); font-weight: 600; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); } .eyebrow::before { content: ""; width: 1.6em; height: 2px; background: var(--accent); display: inline-block; } .section-head { max-width: 760px; margin-bottom: clamp(1.5rem, 4vw, 2.5rem); } .section-head .lead { margin-top: .7em; } .muted { color: var(--ink-faint); } mark { background: color-mix(in srgb, var(--gold) 28%, transparent); color: inherit; padding: 0 .15em; border-radius: 3px; } /* ---------- Header ---------- */ .site-header { position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; transition: border-color .3s ease, background-color .3s ease; } .site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: var(--shadow-sm); } .nav { height: var(--header-h); display: flex; align-items: center; gap: .55rem; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1rem, 3vw, 2rem); } .brand { display: inline-flex; align-items: center; gap: .6rem; min-width: 0; font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; color: var(--ink); text-decoration: none; letter-spacing: -.01em; white-space: nowrap; } .brand > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; } .brand .brand-mark { width: 34px; height: 34px; flex: none; border-radius: 50%; display: grid; place-items: center; color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; background: radial-gradient(120% 120% at 30% 20%, #4f7ae6, var(--accent) 60%, var(--accent-ink)); box-shadow: var(--shadow-sm); } .brand small { display: block; font-family: var(--font-sans); font-weight: 500; font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); } .nav-spacer { flex: 1 1 auto; } .nav-links { display: flex; align-items: center; gap: .1rem; list-style: none; padding: 0; margin: 0; } .nav-links a { display: inline-block; padding: .45rem .6rem; border-radius: 9px; white-space: nowrap; color: var(--ink-soft); text-decoration: none; font-weight: 500; font-size: .93rem; transition: background-color .2s, color .2s; } .nav-links a:hover { background: var(--surface-2); color: var(--ink); } .nav-links a[aria-current="page"] { color: var(--accent-ink); background: var(--accent-soft); } .nav-tools { display: flex; align-items: center; gap: .4rem; flex: none; } /* On narrow phones, the brand tagline can push the language switcher / theme toggle / menu off the right edge — hide the tagline so the controls stay put. */ @media (max-width: 480px) { .brand small { display: none; } } /* dropdown (Explore + Language) */ .menu { position: relative; } .menu-btn, .icon-btn { display: inline-flex; align-items: center; gap: .35rem; white-space: nowrap; height: 40px; padding: 0 .6rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink-soft); font-weight: 500; font-size: .9rem; transition: border-color .2s, background-color .2s, color .2s; } .icon-btn { width: 40px; padding: 0; justify-content: center; } .menu-btn:hover, .icon-btn:hover { border-color: var(--line-strong); color: var(--ink); background: var(--surface-2); } .menu-btn.is-current { color: var(--accent-ink); background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 32%, var(--line)); } .menu-btn svg, .icon-btn svg { width: 18px; height: 18px; } .menu-panel { position: absolute; right: 0; top: calc(100% + .5rem); min-width: 19rem; max-width: min(24rem, calc(100vw - 2rem)); background: var(--bg-elevated); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: .5rem; opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98); transform-origin: top right; transition: opacity .18s ease, transform .18s ease, visibility .18s; max-height: min(70vh, 540px); overflow-y: auto; } .menu.open .menu-panel { opacity: 1; visibility: visible; transform: none; } /* Tür „Sein Leben“ (06.11.2026): Überblick + 13 Kapitel in drei Gruppen, auf breiten Schirmen zweispaltig */ .menu-panel--breit { max-width: min(40rem, calc(100vw - 2rem)); max-height: min(78vh, 640px); } @media (min-width: 900px) { .menu-panel--breit { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .5rem; min-width: 34rem; } } .mp-gruppe { display: flex; flex-direction: column; } .mp-gruppe + .mp-gruppe { margin-top: .25rem; } .kompass-knopf[hidden] { display: none; } .menu-panel a, .menu-panel button { display: flex; align-items: center; gap: .6rem; width: 100%; text-align: left; padding: .55rem .7rem; border-radius: 9px; border: 0; background: none; color: var(--ink-soft); text-decoration: none; font-size: .95rem; font-weight: 500; } .menu-panel a:hover, .menu-panel button:hover { background: var(--surface-2); color: var(--ink); } .menu-panel a[aria-current="page"], .menu-panel [aria-pressed="true"] { color: var(--accent-ink); background: var(--accent-soft); } .menu-panel .mp-emoji { font-size: 1.1rem; width: 1.4em; text-align: center; } .menu-panel .mp-label { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; } .menu-panel .mp-label small { color: var(--ink-faint); font-size: .76rem; font-weight: 500; white-space: normal; } .menu-group-title { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); padding: .5rem .7rem .25rem; font-weight: 600; } .theme-toggle { display: inline-grid; place-items: center; } /* Sonne und Mond liegen übereinander: das gehende dreht weg und schrumpft, das kommende dreht herein */ .theme-toggle svg { grid-area: 1 / 1; transition: opacity .25s, rotate .35s cubic-bezier(.2,.7,.2,1), scale .35s cubic-bezier(.2,.7,.2,1); } .theme-toggle .sun { opacity: 0; rotate: 40deg; scale: .5; } [data-theme="dark"] .theme-toggle .sun { opacity: 1; rotate: 0deg; scale: 1; } [data-theme="dark"] .theme-toggle .moon { opacity: 0; rotate: -40deg; scale: .5; } /* mobile nav toggle */ .nav-burger { display: none; } .reading-progress { position: absolute; left: 0; bottom: -1px; height: 3px; width: 0; background: linear-gradient(90deg, var(--accent), var(--gold)); transition: width .1s linear; } @media (max-width: 1180px) { .nav-links { display: none; } .nav-burger { display: inline-flex; } .nav-links.is-open { display: flex; flex-direction: column; align-items: stretch; gap: .1rem; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--bg-elevated); border-bottom: 1px solid var(--line); padding: .8rem clamp(1.1rem, 4vw, 2.5rem) 1.2rem; box-shadow: var(--shadow-md); } .nav-links.is-open a { padding: .7rem .8rem; font-size: 1.02rem; } /* Gruppen-Dropdowns im Burger-Menü: im Fluss aufklappen (Akkordeon) statt als absolutes Desktop-Overlay, das Menüpunkte und Inhalt überdeckt. */ .nav-links.is-open .menu { position: static; } .nav-links.is-open .menu-btn { width: 100%; justify-content: space-between; } .nav-links.is-open .menu-panel { position: static; display: none; opacity: 1; visibility: visible; transform: none; transition: none; min-width: 0; max-height: none; border: 0; box-shadow: none; background: none; padding: .15rem 0 .5rem .6rem; } .nav-links.is-open .menu.open .menu-panel { display: block; } .nav-links.is-open .menu-panel a { white-space: normal; } } /* ---------- Hero ---------- */ .hero { position: relative; overflow: hidden; padding-top: clamp(2rem, 5vw, 3.5rem); } .hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(60% 50% at 85% 0%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%), radial-gradient(50% 60% at 0% 100%, color-mix(in srgb, var(--gold) 14%, transparent), transparent 70%); } .hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; } .hero h1 { margin-bottom: .4em; } .hero h1 .accent { background: linear-gradient(120deg, var(--accent), var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; } .hero-portrait { position: relative; } .hero-portrait img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); } .hero-portrait .credit { margin-top: .6rem; } .hero-badges { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.6rem; } .badge { display: inline-flex; align-items: center; gap: .45rem; padding: .4rem .8rem; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: .9rem; font-weight: 500; color: var(--ink-soft); box-shadow: var(--shadow-sm); } .badge b { color: var(--ink); font-weight: 650; } a.badge { text-decoration: none; transition: border-color .2s, box-shadow .2s, transform .2s; } a.badge:hover, a.badge:focus-visible { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-1px); } @media (prefers-reduced-motion: reduce) { a.badge:hover, a.badge:focus-visible { transform: none; } } @media (max-width: 820px) { .hero-grid { grid-template-columns: 1fr; } .hero-portrait { max-width: 360px; margin-inline: auto; order: -1; } } /* ---------- Buttons ---------- */ .btn { display: inline-flex; align-items: center; gap: .55rem; padding: .8rem 1.3rem; border-radius: 12px; font-weight: 600; font-size: 1rem; text-decoration: none; border: 1px solid transparent; transition: transform .15s, box-shadow .2s, background-color .2s; } .btn svg { width: 18px; height: 18px; } .btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); } .btn-primary:hover { background: var(--accent-ink); transform: translateY(-2px); box-shadow: var(--shadow-md); } /* Dunkel: Weiß auf Hellblau hatte nur 2,5 : 1 (Nacharbeit 06.11.2026) → dunkle Schrift, ≈ 7 : 1 */ [data-theme="dark"] .btn-primary, [data-theme="dark"] .to-top { color: #0d1530; } .btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line-strong); } .btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); } .btn-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; } /* ---------- Figures & image credits (legally required, shown at image) ---------- */ figure { margin: 0; } .figure { margin-block: clamp(1.6rem, 4vw, 2.4rem); } .figure img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-md); background: var(--surface-2); } .figure figcaption { margin-top: .65rem; } .figure .cap { font-size: .96rem; color: var(--ink-soft); line-height: 1.5; } .credit { font-size: .76rem; color: var(--ink-faint); line-height: 1.45; margin-top: .3rem; display: block; } .credit a { color: var(--ink-faint); text-decoration-color: color-mix(in srgb, var(--ink-faint) 40%, transparent); } .credit a:hover { color: var(--ink-soft); } .credit .lic { white-space: nowrap; } .figure--float { float: right; width: min(42%, 380px); margin: .4rem 0 1.2rem 1.8rem; } .figure--wide img { width: 100%; } @media (max-width: 640px) { .figure--float { float: none; width: 100%; margin: 1.6rem 0; } } /* ---------- Source / citation block ---------- */ .sources { margin-top: 1rem; padding: .55rem .9rem; border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 9px 9px 0; font-size: .82rem; color: var(--ink-soft); } .sources b { font-weight: 650; color: var(--ink); } .sources ol, .sources ul { margin: .2rem 0 0; padding-left: 1.2rem; } .sources li { margin: .15rem 0; } .sources a { word-break: break-word; } .ref { font-size: .72em; vertical-align: super; line-height: 0; color: var(--accent-ink); font-weight: 700; text-decoration: none; padding: 0 .1em; } .ref:hover { text-decoration: underline; } /* ---------- Cards / fact grid ---------- */ .grid { display: grid; gap: clamp(1rem, 2.5vw, 1.6rem); } .grid-2 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-4 { grid-template-columns: repeat(4, 1fr); } @media (max-width: 860px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } } @media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } } .card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.1rem, 2.5vw, 1.6rem); box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s, border-color .2s; } .card.is-link:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-strong); } .card h3 { font-size: 1.25rem; margin-bottom: .35em; } .card .card-emoji { font-size: 1.7rem; display: block; margin-bottom: .5rem; } .card p { color: var(--ink-soft); font-size: .98rem; margin-bottom: 0; } a.card { text-decoration: none; color: inherit; display: block; } a.card .more { color: var(--accent-ink); font-weight: 600; font-size: .92rem; margin-top: .8rem; display: inline-flex; gap: .3rem; align-items: center; } /* card with a cover image on top + the source named directly on the image */ .card--media { padding: 0; overflow: hidden; } .card--media .card__body { padding: clamp(1.1rem, 2.5vw, 1.6rem); } .card__media { position: relative; display: block; background: var(--surface-2); } .card__media img { width: 100%; aspect-ratio: 16 / 10; height: auto; object-fit: cover; object-position: center 28%; display: block; } .card__credit { position: absolute; left: 0; right: 0; bottom: 0; font-size: .6rem; line-height: 1.3; color: rgba(255,255,255,.92); background: linear-gradient(transparent, rgba(0,0,0,.62)); padding: .9rem .55rem .35rem; } .card-cell { display: flex; flex-direction: column; } .card-cell > .card { flex: 1 1 auto; } .card-credit { display: block; margin: .5rem .3rem 0; line-height: 1.4; } /* stat */ .stat { text-align: center; } .stat .num { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.2rem, 6vw, 3.4rem); color: var(--accent-ink); line-height: 1; letter-spacing: -.02em; } .stat .lbl { color: var(--ink-soft); font-size: .95rem; margin-top: .4rem; } /* ---------- Pull quote ---------- */ .pullquote { margin: clamp(2rem, 5vw, 3rem) auto; max-width: 820px; text-align: center; font-family: var(--font-display); font-size: clamp(1.5rem, 3.4vw, 2.2rem); line-height: 1.32; font-weight: 500; color: var(--ink); position: relative; } .pullquote::before { content: "\201C"; font-size: 3em; line-height: 0; color: var(--gold); display: block; margin-bottom: .15em; } .pullquote cite { display: block; font-family: var(--font-sans); font-style: normal; font-size: 1rem; font-weight: 600; color: var(--ink-faint); margin-top: 1rem; letter-spacing: .02em; } .pullquote cite small { display: block; font-weight: 500; color: var(--ink-faint); } /* ---------- Callout / deep dive ---------- */ .callout { border: 1px solid var(--line); border-left: 4px solid var(--gold); background: var(--surface); border-radius: var(--radius); padding: 1.2rem 1.4rem; margin-block: 1.8rem; box-shadow: var(--shadow-sm); } .callout .callout-title { font-family: var(--font-sans); font-weight: 700; font-size: 1.15rem; line-height: 1.3; color: var(--gold); display: flex; align-items: center; gap: .5rem; margin-bottom: .5rem; } .callout p:last-child { margin-bottom: 0; } .callout--accent { border-left-color: var(--accent); } .callout--accent .callout-title { color: var(--accent-ink); } details.deep { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); margin-block: 1.4rem; overflow: hidden; box-shadow: var(--shadow-sm); } details.deep > summary { list-style: none; cursor: pointer; padding: 1rem 1.3rem; font-weight: 650; display: flex; align-items: center; gap: .7rem; color: var(--ink); } details.deep > summary::-webkit-details-marker { display: none; } details.deep > summary > .chev { margin-left: auto; flex: none; display: inline-flex; transition: transform .25s; color: var(--ink-faint); } details.deep > summary > .chev svg { width: 20px; height: 20px; display: block; } details.deep[open]:not([data-schliesst]) > summary > .chev { transform: rotate(180deg); } details.deep > summary .tag { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--gold); font-weight: 700; } details.deep .deep-body { padding: 0 1.3rem 1.2rem; } details.deep .deep-body > *:first-child { margin-top: 0; } /* ---------- Timeline (centered line, alternating left/right) ---------- */ .timeline { position: relative; margin-top: 2rem; padding: 0; list-style: none; } .timeline::before { content: ""; position: absolute; left: 50%; transform: translateX(-50%); top: 6px; bottom: 6px; width: 2px; background: var(--line-strong); } .tl-item { position: relative; width: 50%; box-sizing: border-box; padding-bottom: 2.2rem; } .tl-item:nth-child(odd) { left: 0; text-align: right; padding-right: 2.7rem; } .tl-item:nth-child(even) { left: 50%; text-align: left; padding-left: 2.7rem; } .tl-item::before { content: ""; position: absolute; top: 4px; width: 17px; height: 17px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 0 4px var(--bg); } .tl-item:nth-child(odd)::before { right: -8.5px; } .tl-item:nth-child(even)::before { left: -8.5px; } .tl-item.feature::before { border-color: var(--gold); background: var(--gold-soft); box-shadow: 0 0 0 4px var(--bg), 0 0 0 7px color-mix(in srgb, var(--gold) 22%, transparent); } .tl-item .tl-year { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--accent-ink); } .tl-item h3 { font-size: 1.16rem; margin: .1rem 0 .3rem; } .tl-item p { color: var(--ink-soft); margin-bottom: .3rem; font-size: .96rem; } .tl-item .figure { margin: .8rem 0 .2rem; max-width: 270px; } .tl-item:nth-child(odd) .figure { margin-left: auto; } /* hug the centre line */ .tl-item .figure img { border-radius: 12px; } .tl-item .figure figcaption { margin-top: .45rem; } .tl-item .figure .cap { font-size: .88rem; } /* timeline era headers (centered over the line) */ .tl-era { margin: clamp(2.4rem, 5vw, 3.6rem) 0 1rem; text-align: center; } .tl-era:first-child { margin-top: .3rem; } .tl-era .eyebrow { justify-content: center; margin-bottom: .3rem; } .tl-era h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); } .tl-era p { color: var(--ink-soft); margin: .35rem auto 0; max-width: 56ch; } /* stack to a single left-aligned column on narrow screens */ @media (max-width: 760px) { .timeline::before { left: 19px; transform: none; } .tl-item, .tl-item:nth-child(odd), .tl-item:nth-child(even) { width: 100%; left: 0; text-align: left; padding: 0 0 1.8rem 3.4rem; } .tl-item::before, .tl-item:nth-child(odd)::before, .tl-item:nth-child(even)::before { left: 12px; right: auto; } .tl-item:nth-child(odd) .figure { margin-left: 0; } .tl-item .figure { max-width: 340px; } } /* ---------- Step reveal sequence ---------- */ .steps { counter-reset: step; display: grid; gap: 1rem; margin-top: 1.5rem; } .step { display: grid; grid-template-columns: auto 1fr; gap: 1rem 1.1rem; align-items: start; padding: 1.1rem 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); } .step::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-ink); font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; } .step .step-title { font-family: var(--font-sans); font-weight: 700; font-size: 1.12rem; line-height: 1.3; margin-bottom: .2rem; color: var(--ink); } .step p { margin: 0; color: var(--ink-soft); font-size: .98rem; } /* ---------- Interactive widgets ---------- */ .widget { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.3rem, 3vw, 2rem); box-shadow: var(--shadow-md); margin-block: 2rem; } .widget h3 { display: flex; align-items: center; gap: .6rem; } .widget .widget-tag { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--gold); font-weight: 700; margin-bottom: .3rem; } .field-row { display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: flex-end; margin-top: 1rem; } .field { flex: 1 1 200px; } .field label { display: block; font-size: .85rem; font-weight: 600; color: var(--ink-soft); margin-bottom: .35rem; } .field input[type="number"], .field input[type="text"], .field select { width: 100%; padding: .65rem .8rem; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--bg); color: var(--ink); font: inherit; font-size: 1rem; } input[type="range"] { width: 100%; accent-color: var(--accent); height: 28px; } .range-val { font-family: var(--font-display); font-weight: 600; color: var(--accent-ink); } .result-box { margin-top: 1.2rem; padding: 1rem 1.2rem; border-radius: 12px; background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); } .result-box .big { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.4rem, 4vw, 2rem); color: var(--accent-ink); line-height: 1.15; } .result-box .sub { color: var(--ink-soft); font-size: .9rem; margin-top: .3rem; } .chip-row { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; } .chip { padding: .4rem .8rem; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--bg); font-size: .88rem; font-weight: 500; color: var(--ink-soft); transition: all .15s; } .chip:hover { border-color: var(--accent); color: var(--accent-ink); } .chip.active { background: var(--accent); color: #fff; border-color: var(--accent); } /* equation display */ .equation { font-family: var(--font-display); text-align: center; font-size: clamp(1.8rem, 5vw, 3rem); margin-block: 1.5rem; color: var(--ink); letter-spacing: .01em; } .equation .var { color: var(--accent-ink); } .equation sub, .equation sup { font-size: .55em; } .formula { font-family: var(--font-display); font-style: italic; } /* light-speed / comparison bar */ .bars { display: grid; gap: .7rem; margin-top: 1.2rem; } .bar-row { display: grid; grid-template-columns: 130px 1fr auto; gap: .8rem; align-items: center; font-size: .9rem; } .bar-track { height: 12px; background: var(--surface-2); border-radius: 999px; overflow: hidden; } .bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--gold)); width: 0; transition: width 1.2s cubic-bezier(.2,.7,.2,1); } @media (max-width: 520px) { .bar-row { grid-template-columns: 92px 1fr; } .bar-row .bar-num { grid-column: 2; text-align: right; } } /* ---------- Pager (prev / next) ---------- */ .pager { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 3rem; } .pager a { text-decoration: none; padding: 1.1rem 1.3rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); transition: transform .15s, box-shadow .2s, border-color .2s; display: block; } .pager a:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-strong); } .pager small { display: block; color: var(--ink-faint); font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 600; } .pager .pg-title { display: block; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; color: var(--ink); margin-top: .25rem; } .pager .next { text-align: right; } @media (max-width: 560px) { .pager { grid-template-columns: 1fr; } } /* ---------- Footer ---------- */ .site-footer { background: var(--bg-soft); border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 6vw, 4rem) 2rem; margin-top: 2rem; } .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; } .footer-grid h2 { font-family: var(--font-sans); font-weight: 600; font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--ink-faint); margin-bottom: .9rem; line-height: 1.3; } .footer-grid ul { list-style: none; padding: 0; margin: 0; } .footer-grid li { margin-bottom: .5rem; } .footer-grid a { color: var(--ink-soft); text-decoration: none; font-size: .95rem; } .footer-grid a:hover { color: var(--accent-ink); text-decoration: underline; } .footer-about p { color: var(--ink-soft); font-size: .95rem; max-width: 32ch; } .footer-bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); color: var(--ink-faint); font-size: .85rem; } .footer-bottom a { color: var(--ink-faint); } @media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } } @media (max-width: 460px) { .footer-grid { grid-template-columns: 1fr; } } /* ---------- Reveal on scroll ---------- */ .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); will-change: opacity, transform; } .reveal.in { opacity: 1; transform: none; } .reveal[data-delay="1"] { transition-delay: .08s; } .reveal[data-delay="2"] { transition-delay: .16s; } .reveal[data-delay="3"] { transition-delay: .24s; } .reveal[data-delay="4"] { transition-delay: .32s; } @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } } /* ---------- Word-by-word reveal (quotes, leads, intro headings) ---------- */ .wsplit .word { display: inline-block; white-space: pre-wrap; } .wsplit .word > span { display: inline-block; opacity: 0; transform: translateY(-0.5em) rotate(-3deg); transition: opacity .55s ease, transform .55s cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0ms); will-change: opacity, transform; } .wsplit.in .word > span { opacity: 1; transform: none; } @media (prefers-reduced-motion: reduce) { .wsplit .word > span { opacity: 1 !important; transform: none !important; transition: none !important; } } /* ---------- Light-clock time-dilation animation ---------- */ .lightclock { margin-top: 1rem; } .lightclock canvas { width: 100%; height: auto; display: block; border-radius: var(--radius); background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--surface-2)), var(--surface-2)); border: 1px solid var(--line); } .lc-readout { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-top: .9rem; } .lc-cell { text-align: center; padding: .7rem .6rem; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); } .lc-cell .lc-emoji { font-size: 1.3rem; } .lc-cell .lc-num { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.5rem, 5vw, 2.1rem); line-height: 1; color: var(--accent-ink); margin: .15rem 0; } .lc-cell.rocket .lc-num { color: var(--gold); } .lc-cell .lc-lbl { font-size: .82rem; color: var(--ink-soft); } .lc-controls { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; margin-top: 1rem; } .lc-controls .btn-mini { display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .9rem; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--bg); font-weight: 600; font-size: .9rem; color: var(--ink-soft); } .lc-controls .btn-mini:hover { border-color: var(--accent); color: var(--accent-ink); } /* back to top */ .to-top { position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 80; width: 46px; height: 46px; border-radius: 50%; background: var(--accent); color: #fff; border: 0; display: grid; place-items: center; box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .25s; } .to-top.show { opacity: 1; visibility: visible; transform: none; } .to-top svg { width: 20px; height: 20px; } /* ---------- Misc helpers ---------- */ .center { text-align: center; } .mt-0 { margin-top: 0; } .mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .skip-link { position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: .6rem 1rem; border-radius: 0 0 8px 0; z-index: 200; } .skip-link:focus { left: 0; } .tag-pill { display: inline-block; font-size: .75rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--accent-ink); background: var(--accent-soft); padding: .2rem .6rem; border-radius: 999px; } .kicker-row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 1rem; } .note { font-size: .9rem; color: var(--ink-faint); } .visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } /* data table */ .table-wrap { overflow-x: auto; margin-block: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); } table.data { width: 100%; border-collapse: collapse; font-size: .95rem; } table.data th, table.data td { padding: .7rem .9rem; text-align: left; border-bottom: 1px solid var(--line); } table.data thead th { background: var(--surface-2); font-weight: 650; color: var(--ink); position: sticky; top: 0; } table.data tbody tr:hover { background: var(--surface-2); } table.data td:first-child { font-weight: 600; white-space: nowrap; color: var(--accent-ink); } /* ---------- Glossary: marked terms + tooltip ---------- */ .gloss { color: inherit; text-decoration: none; cursor: help; border-bottom: 1.5px dashed color-mix(in srgb, var(--accent) 55%, var(--line-strong)); transition: background-color .15s, border-color .15s; } .gloss:hover, .gloss:focus-visible { border-bottom-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); border-radius: 3px; } .gloss-tip { position: fixed; z-index: 200; max-width: 290px; background: var(--bg-elevated); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow-lg); padding: .75rem .9rem; font-size: .9rem; color: var(--ink-soft); line-height: 1.5; opacity: 0; visibility: hidden; transform: translateY(4px); transition: opacity .16s ease, transform .16s ease, visibility .16s; pointer-events: none; } .gloss-tip.show { opacity: 1; visibility: visible; transform: none; pointer-events: auto; } .gloss-tip .gt-img { display: block; width: 100%; height: auto; max-height: 240px; object-fit: contain; border-radius: 8px; margin-bottom: .55rem; background: var(--bg-2, rgba(128,128,128,.12)); } /* invisible bridge so the mouse can travel from the word to the tooltip without losing hover */ .gloss-tip::before { content: ""; position: absolute; left: -10px; right: -10px; top: 100%; height: 16px; } .gloss-tip.below::before { top: auto; bottom: 100%; } .gloss-tip .gt-title { color: var(--ink); font-family: var(--font-sans); font-weight: 700; } .gloss-tip .gt-link { display: block; margin-top: .55rem; font-weight: 600; color: var(--accent-ink); text-decoration: none; font-size: .85rem; } .gloss-tip .gt-link:hover { text-decoration: underline; } .gloss-card h3 { font-size: 1.15rem; } .gloss-cell { display: flex; flex-direction: column; } .gloss-cell .gloss-card { flex: 1 1 auto; padding: 0; overflow: hidden; display: flex; flex-direction: column; } .gloss-thumb { display: block; position: relative; background: var(--surface-2); border-bottom: 1px solid var(--line); } .gloss-thumb img { width: 100%; aspect-ratio: 16 / 10; height: auto; object-fit: cover; object-position: center 28%; display: block; } .gloss-thumb__credit { position: absolute; left: 0; right: 0; bottom: 0; font-size: .58rem; line-height: 1.25; color: rgba(255,255,255,.92); background: linear-gradient(transparent, rgba(0,0,0,.68)); padding: .85rem .5rem .3rem; pointer-events: none; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; } .gloss-thumb--ph { display: grid; place-items: center; aspect-ratio: 16 / 10; color: var(--gold); background: radial-gradient(120% 130% at 50% 0%, color-mix(in srgb, var(--gold) 12%, transparent), transparent 62%), var(--surface-2); } .gloss-thumb--ph svg { width: 56%; height: auto; opacity: .5; transition: opacity .25s, transform .5s var(--ease); } .gloss-card:hover .gloss-thumb--ph svg { opacity: .65; transform: rotate(8deg); } .gloss-card-body { display: block; padding: clamp(1.05rem, 2.4vw, 1.5rem); } .gloss-card-body h3 { margin-top: 0; } .gloss-card-body .more { margin-top: .8rem; } .gloss-credit { display: block; margin: .5rem .3rem 0; line-height: 1.4; } /* ---------- News feed ---------- */ .news-grid { display: grid; gap: 1.3rem; grid-template-columns: repeat(2, 1fr); } @media (max-width: 680px) { .news-grid { grid-template-columns: 1fr; } } .news-cell { display: flex; flex-direction: column; } .news-cell .news-card { flex: 1 1 auto; padding: 0; overflow: hidden; display: flex; flex-direction: column; } .news-thumb { display: block; background: var(--surface-2); border-bottom: 1px solid var(--line); } .news-thumb img { width: 100%; aspect-ratio: 16 / 9; height: auto; object-fit: cover; object-position: center 28%; display: block; transition: transform .5s var(--ease); } .news-card:hover .news-thumb img { transform: scale(1.04); } .news-card-body { display: flex; flex-direction: column; gap: .4rem; padding: clamp(1.05rem, 2.4vw, 1.4rem); flex: 1; } .news-date { font-family: var(--font-sans); font-size: .74rem; letter-spacing: .09em; text-transform: uppercase; color: var(--gold); font-weight: 700; } .news-card-body h3 { margin: 0; font-size: 1.12rem; line-height: 1.3; } .news-card-body p { margin: 0; color: var(--ink-soft); font-size: .93rem; } .news-card-body .more { margin-top: auto; padding-top: .3rem; color: var(--gold); font-weight: 600; font-size: .85rem; } .news-card-body .more svg { width: 1.05em; height: 1.05em; flex: none; } .news-sources__list svg { width: .9em; height: .9em; flex: none; } .news-credit { display: block; margin: .5rem .3rem 0; line-height: 1.4; } /* News list card is a
(not one big ): the image links to detail and carries its full linked credit directly beneath it; the title is a separate link. Clip the thumb so its hover-zoom never creeps over the credit. */ .news-thumb { overflow: hidden; } .news-thumb-link { display: block; } .news-card-media .news-credit { margin: .5rem .9rem .1rem; } .news-card-body h3 a { color: inherit; text-decoration: none; } .news-card-body h3 a:hover { color: var(--gold); } .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-strong); } .news-date + h1 { margin-top: .15rem; } .news-sources { background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--gold); border-radius: var(--radius); padding: 1.1rem 1.3rem; margin-top: 2.2rem; } .news-sources__h { font-size: 1.15rem; margin: 0 0 .7rem; } .news-sources__list { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; } .news-sources__list a { font-weight: 600; text-decoration: none; } .news-sources__list a:hover { text-decoration: underline; } .news-src-tag { font-weight: 400; color: var(--ink-faint); font-size: .9em; } /* ---------- Image lightbox ---------- */ .figure img, .hero-portrait img { cursor: zoom-in; } .lightbox { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: clamp(1rem, 4vmin, 3rem); background: rgba(8, 10, 16, .88); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s; } .lightbox.open { opacity: 1; visibility: visible; } .lb-figure { margin: 0; display: flex; flex-direction: column; align-items: center; max-width: 96vw; max-height: 92vh; } .lb-img { max-width: 96vw; max-height: 80vh; width: auto; height: auto; border-radius: 10px; box-shadow: 0 24px 70px rgba(0, 0, 0, .6); background: #fff; } .lb-cap { margin-top: 1rem; max-width: min(760px, 94vw); text-align: center; font-size: .95rem; line-height: 1.5; color: #e7e9ee; } .lb-cap .cap { display: block; color: #eef1f6; margin-bottom: .25rem; } .lb-cap .credit { display: block; color: #aab2c2; font-size: .82rem; } .lb-cap .credit a, .lb-cap a { color: #cdd5e6; } .lb-cap .credit a:hover, .lb-cap a:hover { color: #fff; } .lb-close { position: fixed; top: 1rem; right: 1rem; z-index: 1; width: 46px; height: 46px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .14); color: #fff; font-size: 1.7rem; line-height: 1; cursor: pointer; display: grid; place-items: center; } .lb-close:hover { background: rgba(255, 255, 255, .26); } @media (prefers-reduced-motion: reduce) { .lightbox { transition: none; } } /* hr ornament */ .orn { border: 0; text-align: center; margin-block: 2.5rem; color: var(--gold); } .orn::before { content: "· · ·"; letter-spacing: .6em; font-size: 1.2rem; } /* print */ @media print { .site-header, .to-top, .pager, .nav-tools, .ra-bar { display: none; } body { background: #fff; color: #000; } } /* ========================================================================= Read-aloud player (AI voice) — sits at the top of the article, whole page. The card is a TRIGGER: click loads its audio into the ONE global sticky bar (.ra-bar) pinned under the header; it keeps playing across page changes, collapses on stop (X), and a new audio stops a running one. Logic in main.js;