/* Preserved public-web eras. Each snapshot deliberately has its own period identity. */
.hist-snapshot{margin:0;min-height:100vh;font-family:Arial,Helvetica,sans-serif}.hist-snapshot *{box-sizing:border-box}.hist-preserved-bar{position:sticky;z-index:999;top:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 12px;border-bottom:1px solid #111;background:#151917;color:#fff;font:700 10px/1.3 Arial}.hist-preserved-bar a{color:#f3d83e}.hist-preserved-bar small{font:700 8px "Courier New",monospace;color:#abb4ae}
/* 2014: tiny studio site, print-like cream with hand-cut navigation. */
.hist-2014{background:#e8dfc7;color:#24211d}.hist14-wrap{width:min(920px,calc(100% - 24px));margin:18px auto 40px;border:2px solid #362f27;background:#fff9e9;box-shadow:7px 8px 0 #88795f}.hist14-head{display:grid;grid-template-columns:88px 1fr;gap:16px;align-items:center;padding:22px;border-bottom:2px solid #362f27;background:#f2d84b}.hist14-logo{display:grid;place-items:center;width:82px;height:82px;border:3px solid #28231e;border-radius:50%;background:#fff8e6;font:900 38px Arial}.hist14-head h1{margin:0;font:900 clamp(30px,6vw,55px)/.85 Arial;letter-spacing:-.05em}.hist14-head p{margin:7px 0 0;font:700 13px Arial}.hist14-nav{display:flex;flex-wrap:wrap;border-bottom:2px solid #362f27;background:#f8f0da}.hist14-nav a{padding:11px 15px;border-right:1px solid #7d705b;color:#27221d;text-decoration:none;font:900 11px Arial}.hist14-content{display:grid;grid-template-columns:1fr 245px;gap:18px;padding:20px}.hist14-card{margin-bottom:13px;padding:14px;border:1px solid #746957;background:#fffef9}.hist14-card h2{display:inline-block;margin:-4px 0 10px;padding:4px 7px;background:#f2d84b;font:900 18px Arial;transform:rotate(-1deg)}.hist14-card p,.hist14-card li{font:600 12px/1.55 Arial}.hist14-card ul{padding-left:18px}.hist14-side .hist14-card{background:#efe7d2}.hist14-footer{padding:12px 18px;border-top:2px solid #362f27;background:#eee3c9;font:700 10px Arial;text-align:center}
/* 2020: reorganised corporation, sober desktop portal-like public site. */
.hist-2020{background:#171b1a;color:#e8ece9}.hist20-header{border-bottom:1px solid #4c5550;background:#222826}.hist20-head-inner{width:min(1120px,calc(100% - 32px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:19px 0}.hist20-brand{display:flex;align-items:center;gap:12px}.hist20-mark{display:grid;place-items:center;width:46px;height:46px;border:1px solid #808a84;background:#d5bd37;color:#171a18;font:900 19px Arial}.hist20-brand b{display:block;font:900 16px Arial;letter-spacing:.07em}.hist20-brand small{display:block;margin-top:3px;color:#9da8a1;font:700 8px Arial;letter-spacing:.08em}.hist20-nav{display:flex;gap:4px}.hist20-nav a{padding:8px 10px;border:1px solid #444c48;background:#2c3330;color:#e7ebe8;text-decoration:none;font:800 9px Arial}.hist20-hero{padding:70px 0 55px;background:linear-gradient(135deg,#202725 0 67%,#d6be38 67%)}.hist20-shell{width:min(1120px,calc(100% - 32px));margin:auto}.hist20-hero small{font:800 9px "Courier New",monospace;color:#aeb9b2}.hist20-hero h1{max-width:760px;margin:8px 0 12px;font:900 clamp(40px,7vw,72px)/.9 Arial;letter-spacing:-.045em}.hist20-hero p{max-width:650px;margin:0;color:#bac3bd;font:600 14px/1.55 Arial}.hist20-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:28px 0;background:#46504a;border:1px solid #46504a}.hist20-grid article{min-height:170px;padding:16px;background:#222826}.hist20-grid small{font:800 7px "Courier New",monospace;color:#8f9b94}.hist20-grid h2{margin:10px 0 6px;font:900 18px Arial}.hist20-grid p{font:600 10px/1.5 Arial;color:#abb5ae}.hist20-news{padding:38px 0 60px;background:#e5e2d6;color:#222724}.hist20-news h2{font:900 30px Arial}.hist20-news article{padding:12px 0;border-top:1px solid #878b85}.hist20-news time{font:800 8px "Courier New",monospace;color:#666c66}.hist20-news b{display:block;margin-top:4px;font:900 14px Arial}
/* 2023: brighter systems/workshop era. */
.hist-2023{background:#dfe9df;color:#1f2722}.hist23-top{background:#f8f6e9;border-bottom:2px solid #203128}.hist23-shell{width:min(1120px,calc(100% - 28px));margin:auto}.hist23-top .hist23-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0}.hist23-brand{display:flex;align-items:center;gap:11px}.hist23-mark{display:grid;place-items:center;width:48px;height:48px;border:2px solid #203128;background:#b9dfc5;font:900 20px Arial}.hist23-brand b{font:900 18px Arial}.hist23-brand small{display:block;margin-top:2px;font:800 8px Arial;color:#627068}.hist23-nav{display:flex;flex-wrap:wrap;gap:6px}.hist23-nav a{padding:8px 11px;border:1px solid #607168;background:#fff;color:#233028;text-decoration:none;font:900 9px Arial}.hist23-hero{padding:65px 0;background:linear-gradient(112deg,#b9dfc5 0 58%,#f3da4b 58%)}.hist23-hero small{font:900 8px "Courier New",monospace;letter-spacing:.1em}.hist23-hero h1{max-width:780px;margin:8px 0 12px;font:900 clamp(44px,7vw,78px)/.87 Arial;letter-spacing:-.055em}.hist23-hero p{max-width:620px;margin:0;font:700 13px/1.55 Arial}.hist23-work{padding:38px 0 55px}.hist23-work h2{margin:0 0 18px;font:900 34px Arial}.hist23-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.hist23-cards article{min-height:190px;padding:15px;border:1px solid #31443a;background:#f8f6e9;box-shadow:4px 4px 0 rgba(31,39,34,.16)}.hist23-cards article:nth-child(2){background:#e9e4f4}.hist23-cards article:nth-child(3){background:#f7e5de}.hist23-cards article:nth-child(4){background:#fff0a8}.hist23-cards small{font:900 7px "Courier New",monospace;color:#68736c}.hist23-cards h2{margin:18px 0 7px;font:900 20px Arial}.hist23-cards p{font:600 10px/1.5 Arial}.hist23-note{margin-top:18px;padding:13px;border:1px dashed #45564c;background:rgba(255,255,255,.55);font:700 10px/1.45 Arial}
@media(max-width:760px){.hist-preserved-bar{position:relative;align-items:flex-start}.hist14-content{grid-template-columns:1fr}.hist14-head{grid-template-columns:62px 1fr}.hist14-logo{width:58px;height:58px;font-size:26px}.hist20-head-inner,.hist23-top .hist23-shell{display:block}.hist20-nav,.hist23-nav{margin-top:12px;overflow:auto;flex-wrap:nowrap}.hist20-nav a,.hist23-nav a{white-space:nowrap}.hist20-grid,.hist23-cards{grid-template-columns:1fr 1fr}.hist20-hero{background:#202725}.hist23-hero{background:#b9dfc5}}@media(max-width:480px){.hist20-grid,.hist23-cards{grid-template-columns:1fr}}