:root{--bg:#05070a;--surface:#0b0e13;--line:rgba(244,236,223,.14);--text:#f4ecdf;--muted:rgba(244,236,223,.68);--faint:rgba(244,236,223,.46);--gold:#c49a45;--red:#d83b35;--thai:'Sarabun','IBM Plex Sans Thai',system-ui,sans-serif;--heading:'IBM Plex Sans Thai','Sarabun',system-ui,sans-serif;--ui:'Inter',system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg);scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--thai);font-weight:300;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
.civilisation-progress{position:fixed;top:0;left:0;z-index:10000;width:0;height:2px;background:var(--red)}
.civilisation-shell{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:112px 0 120px}
.civilisation-breadcrumb{display:inline-flex;align-items:center;gap:9px;font-size:12px;color:var(--faint);transition:color .2s ease}
.civilisation-breadcrumb:hover,.civilisation-breadcrumb:focus-visible{color:#fff;outline:none}
.civilisation-figure{position:relative;margin-top:34px;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:var(--surface)}
.civilisation-figure::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(5,7,10,.88))}
.civilisation-figure img{width:100%;height:100%;display:block;object-fit:cover;filter:saturate(.84) brightness(.94)}
.civilisation-header,.civilisation-copy,.civilisation-toc,.civilisation-timeline,.civilisation-interactive,.civilisation-sources{width:min(900px,100%);margin-inline:auto}
.civilisation-header{padding:44px 0 0}
.civilisation-meta{display:inline-flex;padding:8px 11px;border:1px solid rgba(196,154,69,.24);border-radius:999px;background:rgba(196,154,69,.06);font-family:var(--ui);font-size:10px;font-weight:600;letter-spacing:.14em;color:var(--gold)}
.civilisation-header h1{max-width:850px;margin-top:18px;font-family:var(--heading);font-size:clamp(40px,6vw,72px);font-weight:620;line-height:1.06;letter-spacing:-.042em;text-wrap:balance}
.civilisation-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}
.civilisation-facts p{min-height:82px;display:flex;flex-direction:column;justify-content:center;padding:15px 17px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(145deg,rgba(255,255,255,.035),rgba(255,255,255,.012));font-size:13px;line-height:1.7;color:var(--muted)}
.civilisation-facts p span{display:block;margin-bottom:5px;font-family:var(--ui);font-size:9px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--gold)}
.civilisation-alias{font-family:var(--ui)}
.civilisation-lead{margin-top:30px;font-size:clamp(18px,2vw,23px);line-height:1.88;color:rgba(244,236,223,.9)}
.civilisation-copy{padding-top:30px}
.civilisation-copy p{margin-top:20px;font-size:clamp(15px,1.25vw,17px);line-height:2;color:var(--muted);text-align:left}
.civilisation-copy p:first-child{font-size:clamp(17px,1.5vw,20px);color:rgba(244,236,223,.84)}
.civilisation-toc{display:grid;grid-template-columns:minmax(190px,.34fr) minmax(0,.66fr);gap:22px;margin-top:48px;padding:24px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.014))}
.civilisation-toc h2{margin-top:6px;font-family:var(--heading);font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.2}
.civilisation-reading{font-family:var(--ui);font-size:11px;letter-spacing:.08em;color:var(--gold)}
.civilisation-reading span{font-size:20px;font-weight:650}
.civilisation-toc ol{display:grid;gap:7px;list-style:none}
.civilisation-toc a{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;align-items:start;padding:8px 10px;border-radius:10px;font-size:13px;line-height:1.55;color:var(--muted);transition:background .2s ease,color .2s ease}
.civilisation-toc a span{padding-top:2px;font-family:var(--ui);font-size:9px;letter-spacing:.12em;color:var(--gold)}
.civilisation-toc a:hover,.civilisation-toc a:focus-visible{background:rgba(196,154,69,.08);color:#fff;outline:none}
.civilisation-copy-longform{padding-top:52px}
.civilisation-copy-longform>p:first-child{font-size:inherit;color:inherit}
.civilisation-article-section{scroll-margin-top:96px}
.civilisation-article-section+.civilisation-article-section{margin-top:54px;padding-top:54px;border-top:1px solid var(--line)}
.civilisation-article-section>header{display:grid;grid-template-columns:48px minmax(0,1fr);gap:14px;align-items:start;padding:19px 21px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,rgba(255,255,255,.05),rgba(255,255,255,.016))}
.civilisation-article-section>header>span{padding-top:7px;font-family:var(--ui);font-size:10px;font-weight:600;letter-spacing:.15em;color:var(--gold)}
.civilisation-article-section h2{font-family:var(--heading);font-size:clamp(25px,3.4vw,38px);font-weight:610;line-height:1.25;letter-spacing:-.025em;text-wrap:balance}
.civilisation-article-section>div{padding:10px 4px 0}
.civilisation-article-section p{margin-top:22px;font-size:clamp(15px,1.25vw,17px);line-height:2.05;color:var(--muted);text-align:left}
.civilisation-article-section p:first-child{font-size:clamp(16px,1.35vw,18px);color:rgba(244,236,223,.86)}
.civilisation-timeline{margin-top:64px;padding-top:38px;border-top:1px solid var(--line)}
.civilisation-timeline ol{display:grid;gap:10px;margin-top:18px;list-style:none}
.civilisation-timeline li{display:grid;grid-template-columns:minmax(145px,.25fr) minmax(0,.75fr);gap:20px;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.022)}
.civilisation-timeline time{font-family:var(--ui);font-size:11px;font-weight:600;letter-spacing:.06em;color:var(--gold)}
.civilisation-timeline h3{font-family:var(--heading);font-size:17px;font-weight:600;color:var(--text)}
.civilisation-timeline p{margin-top:5px;font-size:14px;line-height:1.75;color:var(--muted)}
.civilisation-interactive,.civilisation-sources{margin-top:56px;padding-top:34px;border-top:1px solid var(--line)}
.civilisation-section-heading,.civilisation-sources h2{padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,rgba(255,255,255,.04),rgba(255,255,255,.014))}
.civilisation-section-heading span{font-family:var(--ui);font-size:9px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--gold)}
.civilisation-section-heading h2,.civilisation-sources h2{margin-top:4px;font-family:var(--heading);font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.3}
.civilisation-sources h2{margin-top:0}
.civilisation-study{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.8fr);gap:18px;margin-top:18px}
.civilisation-study-visual{position:relative;min-height:390px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--surface)}
.civilisation-study-visual img{width:100%;height:100%;display:block;object-fit:cover;filter:saturate(.78) contrast(1.04) brightness(.72);transform:scale(1.04);transition:transform .8s cubic-bezier(.16,1,.3,1),object-position .8s cubic-bezier(.16,1,.3,1),filter .5s ease}
.civilisation-study-visual[data-focus="1"] img{object-position:35% 45%;transform:scale(1.08)}
.civilisation-study-visual[data-focus="2"] img{object-position:52% 48%;transform:scale(1.18);filter:saturate(.86) contrast(1.08) brightness(.82)}
.civilisation-study-visual[data-focus="3"] img{object-position:70% 54%;transform:scale(1.12)}
.civilisation-study-marker{position:absolute;left:50%;top:50%;width:20px;height:20px;border:1px solid rgba(255,255,255,.85);border-radius:50%;box-shadow:0 0 0 8px rgba(216,59,53,.18);transform:translate(-50%,-50%);transition:left .8s cubic-bezier(.16,1,.3,1),top .8s cubic-bezier(.16,1,.3,1)}
.civilisation-study-visual[data-focus="1"] .civilisation-study-marker{left:34%;top:42%}
.civilisation-study-visual[data-focus="2"] .civilisation-study-marker{left:52%;top:50%}
.civilisation-study-visual[data-focus="3"] .civilisation-study-marker{left:70%;top:56%}
.civilisation-study-panel{display:flex;flex-direction:column;justify-content:space-between;padding:20px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(160deg,rgba(196,154,69,.07),rgba(255,255,255,.018))}
.civilisation-study-controls{display:grid;gap:8px}
.civilisation-study-controls button{padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.18);font-family:var(--heading);font-size:14px;text-align:left;color:var(--muted);cursor:pointer;transition:border-color .2s ease,background .2s ease,color .2s ease}
.civilisation-study-controls button[aria-selected="true"]{border-color:rgba(196,154,69,.62);background:rgba(196,154,69,.1);color:#fff}
.civilisation-study-panel p{margin-top:22px;font-size:14px;line-height:1.85;color:var(--muted)}
.civilisation-source-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.civilisation-source-list a{padding:9px 12px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:#e7c572;transition:border-color .2s ease,color .2s ease}
.civilisation-source-list a:hover,.civilisation-source-list a:focus-visible{border-color:var(--gold);color:#fff;outline:none}
.civilisation-next{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:72px;padding-top:28px;border-top:1px solid var(--line)}
.civilisation-next a{min-height:122px;display:flex;flex-direction:column;justify-content:center;padding:22px;border:1px solid rgba(244,236,223,.18);border-radius:16px;background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.016));box-shadow:inset 0 1px 0 rgba(255,255,255,.04);transition:transform .25s ease,border-color .25s ease}
.civilisation-next a:last-child{text-align:right;align-items:flex-end}
.civilisation-next a:hover,.civilisation-next a:focus-visible{transform:translateY(-3px);border-color:rgba(196,154,69,.48);outline:none}
.civilisation-next span{font-size:11px;color:var(--faint)}
.civilisation-next strong{margin-top:7px;font-family:var(--heading);font-size:clamp(18px,2vw,24px);font-weight:600}
#civilisationTop{position:fixed;right:24px;bottom:24px;z-index:1000;width:46px;height:46px;display:none;place-items:center;border:1px solid var(--line);border-radius:50%;background:#f4ecdf;color:#07090c;cursor:pointer}
@media(max-width:900px){.civilisation-facts{grid-template-columns:1fr 1fr}.civilisation-facts .civilisation-alias{grid-column:1/-1}}
@media(max-width:760px){.civilisation-toc{grid-template-columns:1fr}.civilisation-study{grid-template-columns:1fr}.civilisation-study-visual{min-height:330px}.civilisation-facts{grid-template-columns:1fr}.civilisation-facts .civilisation-alias{grid-column:auto}.civilisation-facts p{min-height:0}.civilisation-timeline li{grid-template-columns:1fr;gap:7px}}
@media(max-width:640px){.civilisation-shell{width:min(100% - 28px,1180px);padding-top:92px}.civilisation-figure{margin-inline:-14px;border-radius:0;border-inline:0;aspect-ratio:4/3}.civilisation-header{padding-top:32px}.civilisation-header h1{font-size:clamp(36px,11vw,54px);line-height:1.1}.civilisation-lead{font-size:18px}.civilisation-toc{padding:18px}.civilisation-article-section>header{grid-template-columns:34px minmax(0,1fr);padding:17px}.civilisation-study-visual{min-height:280px}.civilisation-next{grid-template-columns:1fr}.civilisation-next a:last-child{text-align:left;align-items:flex-start}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.civilisation-next a,.civilisation-study-visual img,.civilisation-study-marker{transition:none}}