/* ─────────────────────────────────────────────────────────────
   AccordHK — Editorial system (B)
   Sky-blue accent · light + dark themes · EN / 繁中
   ───────────────────────────────────────────────────────────── */

:root,[data-theme="dark"]{
  --bg:#0e0c0a;
  --bg-1:#161310;
  --bg-2:#1d1915;
  --line:#2a2520;
  --line-2:#3a342d;
  --fg:#f4ede1;
  --fg-dim:#b8aea0;
  --muted:#6e6457;
  --accent:#5bc2e7;             /* AccordHK sky */
  --accent-soft:#8fd5ef;
  --accent-deep:#2e8ab8;
  --on-accent:#0e2733;
  --grain:rgba(91,194,231,.06);
  --grain-blend:screen;
  --shadow:0 12px 32px rgba(91,194,231,.30);
  --selection-fg:#0e2733;
}
[data-theme="light"]{
  --bg:#f6f2ea;
  --bg-1:#efe9dd;
  --bg-2:#e7dfd0;
  --line:#d9cfbd;
  --line-2:#c4b89e;
  --fg:#1a1410;
  --fg-dim:#5b4f3f;
  --muted:#8a7d68;
  --accent:#0e7ba8;            /* darkened sky for AA on paper */
  --accent-soft:#5bc2e7;
  --accent-deep:#1c6488;
  --on-accent:#f6f2ea;
  --grain:rgba(14,123,168,.08);
  --grain-blend:multiply;
  --shadow:0 12px 32px rgba(14,123,168,.24);
  --selection-fg:#f6f2ea;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{
  background:var(--bg);color:var(--fg);
  font-family:'Geist','Helvetica Neue',system-ui,sans-serif;
  font-size:16px;-webkit-font-smoothing:antialiased;line-height:1.5;
  transition:background .35s ease,color .35s ease;
}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--selection-fg)}
button,input,textarea,select{font-family:inherit;color:inherit}

:root{
  --serif:'Instrument Serif','Cormorant Garamond',Georgia,serif;
  --sans:'Geist','Helvetica Neue',system-ui,sans-serif;
  --mono:'Geist Mono',ui-monospace,Menlo,monospace;
}

/* warm grain */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:200;
  background:radial-gradient(ellipse 100% 60% at 50% 0%,var(--grain),transparent 60%);
  mix-blend-mode:var(--grain-blend);
}

.shell{max-width:1320px;margin:0 auto;padding:0 56px}

/* ── nav ─────────────────────────────────────── */
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:24px 56px;max-width:1320px;margin:0 auto;
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:baseline;gap:6px}
.brand .a{font-family:var(--serif);font-size:28px;font-style:italic;letter-spacing:-.02em;line-height:1}
.brand .a::first-letter{color:var(--accent)}
.brand .sub{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase}
.nav-mid{display:flex;gap:24px;font-size:13px;color:var(--fg-dim)}
.nav-mid a{transition:color .2s;padding:6px 0;position:relative}
.nav-mid a:hover{color:var(--accent)}
.nav-mid a.cur{color:var(--fg)}
.nav-mid a.cur::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--accent)}
.nav-right{display:flex;align-items:center;gap:14px}

/* lang + theme toggles */
.tgl{
  display:inline-flex;align-items:stretch;
  border:1px solid var(--line-2);border-radius:999px;
  overflow:hidden;height:30px;
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;
}
.tgl button{
  background:transparent;border:0;padding:0 12px;height:100%;
  color:var(--muted);cursor:pointer;text-transform:uppercase;
  transition:color .15s,background .15s;
  display:flex;align-items:center;justify-content:center;
  min-width:32px;
}
.tgl button:hover{color:var(--fg)}
.tgl button.on{background:var(--accent);color:var(--on-accent)}
.theme-tgl button{padding:0 10px;font-size:14px;letter-spacing:0;line-height:1}

.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border-radius:999px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;border:1px solid transparent;font-family:var(--sans);white-space:nowrap}
.btn.primary{background:var(--accent);color:var(--on-accent)}
.btn.primary:hover{background:var(--accent-soft);transform:translateY(-1px)}
.btn.ghost{border-color:var(--line-2);color:var(--fg);background:transparent}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ── page header / hero ─────────────────────── */
.page-hero{padding:90px 0 70px;position:relative}
.crumbs{display:flex;gap:10px;font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--muted);text-transform:uppercase;margin-bottom:28px}
.crumbs .acc{color:var(--accent)}
h1.display{font-family:var(--serif);font-weight:400;font-size:clamp(56px,8.4vw,148px);line-height:.94;letter-spacing:-.035em;margin-bottom:36px;max-width:1100px}
h1.display em{font-style:italic;color:var(--accent)}
h1.display .dim{color:var(--fg-dim)}

.lede{font-family:var(--serif);font-size:22px;line-height:1.4;color:var(--fg);max-width:640px;font-style:italic}
.lede b{font-style:normal;color:var(--accent);font-weight:500;font-family:var(--sans);font-size:.85em;letter-spacing:.02em}

.eyebrow{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:28px}
.eyebrow .dot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:p 2s infinite}
@keyframes p{0%,100%{opacity:1}50%{opacity:.3}}
.eyebrow .div{width:40px;height:1px;background:var(--line-2)}

/* ── sections ───────────────────────────────── */
section{padding:110px 0;border-top:1px solid var(--line)}
.sec-head{margin-bottom:64px;display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:end}
.sec-no{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.25em;display:flex;flex-direction:column;gap:6px;text-transform:uppercase}
.sec-no big{font-family:var(--serif);font-size:60px;color:var(--fg);line-height:1;letter-spacing:-.02em;font-style:italic}
.sec-title{font-family:var(--serif);font-weight:400;font-size:clamp(36px,5.2vw,76px);line-height:1;letter-spacing:-.025em;max-width:980px}
.sec-title em{font-style:italic;color:var(--accent)}
.sec-title .dim{color:var(--fg-dim)}

/* generic editorial bits */
.dashed{border-top:1px dashed var(--line-2)}
.kvline{display:flex;justify-content:space-between;gap:24px;padding:14px 0;border-bottom:1px dashed var(--line-2);font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}
.kvline b{color:var(--fg);font-weight:500}

/* ── cta + footer ───────────────────────────── */
.cta{padding:170px 0;border-top:1px solid var(--line);text-align:center;background:radial-gradient(ellipse 80% 60% at 50% 50%,var(--grain) 0%,transparent 70%)}
.cta .eb{font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--accent);text-transform:uppercase;margin-bottom:28px}
.cta h2{font-family:var(--serif);font-weight:400;font-size:clamp(52px,8vw,132px);line-height:.94;letter-spacing:-.035em;margin-bottom:34px}
.cta h2 em{font-style:italic;color:var(--accent)}
.cta p{font-family:var(--serif);font-style:italic;font-size:20px;line-height:1.4;color:var(--fg-dim);max-width:560px;margin:0 auto 42px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta .btn{padding:16px 28px;font-size:14px}

footer.foot{border-top:1px solid var(--line);padding:72px 0 36px}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;margin-bottom:72px}
.foot-brand .name{font-family:var(--serif);font-size:40px;font-style:italic;letter-spacing:-.02em;margin-bottom:16px}
.foot-brand .name em{color:var(--accent)}
.foot-brand p{font-size:14px;color:var(--fg-dim);line-height:1.6;max-width:360px;margin-bottom:20px}
.foot-brand .contact{font-family:var(--mono);font-size:12px;color:var(--fg-dim);line-height:1.8}
.foot-brand .contact b{color:var(--fg);font-weight:500}
.foot h4{font-family:var(--mono);font-size:10px;color:var(--muted);letter-spacing:.25em;text-transform:uppercase;margin-bottom:20px;font-weight:500}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.foot ul a{font-size:14px;color:var(--fg-dim);transition:color .15s}
.foot ul a:hover{color:var(--accent)}
.foot-bot{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.05em;flex-wrap:wrap;gap:16px}
.foot-bot .social{display:flex;gap:24px}
.foot-bot .social a:hover{color:var(--accent)}

.wa{position:fixed;bottom:28px;right:28px;width:54px;height:54px;background:var(--accent);color:var(--on-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);font-size:24px;z-index:100;transition:transform .2s}
.wa:hover{transform:scale(1.08) rotate(-8deg)}

/* animations */
.fade{opacity:0;transform:translateY(20px);animation:fu .9s cubic-bezier(.2,.7,.3,1) forwards}
@keyframes fu{to{opacity:1;transform:translateY(0)}}
.d1{animation-delay:.05s}.d2{animation-delay:.18s}.d3{animation-delay:.32s}.d4{animation-delay:.46s}.d5{animation-delay:.6s}

/* responsive */
@media (max-width: 1024px){
  .shell{padding:0 28px}
  .nav{padding:18px 28px}
  .nav-mid{display:none}
  .sec-head{grid-template-columns:1fr;gap:18px}
  .foot-top{grid-template-columns:1fr 1fr;gap:40px}
}

/* draft / placeholder banner — flag pages whose content still needs verification */
.draft-note{
  display:flex;align-items:center;gap:14px;
  margin:24px 0 0;padding:14px 20px;
  border:1px dashed var(--line-2);
  background:color-mix(in srgb,var(--accent) 7%,transparent);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--fg-dim);
  line-height:1.5;border-radius:4px;
}
.draft-note::before{
  content:'DRAFT';
  font-weight:600;color:var(--accent);letter-spacing:.22em;
  padding:4px 10px;border:1px solid var(--accent);border-radius:999px;
  flex:0 0 auto;
}
.draft-note b{color:var(--fg);font-weight:500}

/* ─────────────────────────────────────────────────────────────
   Imagery system (v0.3)
   Schematic SVG diagrams + photo slots + abstract breakers.
   Pan–East-Asian editorial tone; never anchor too local.
   ───────────────────────────────────────────────────────────── */

/* photo slot — drop a real photo later via <image-slot> */
.photo-slot{
  position:relative;width:100%;
  background:var(--bg-1);
  border:1px solid var(--line);
  overflow:hidden;
}
.photo-slot::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(135deg,color-mix(in srgb,var(--accent) 12%,transparent),transparent 55%),
    repeating-linear-gradient(45deg,transparent 0 18px,color-mix(in srgb,var(--line-2) 50%,transparent) 18px 19px);
  opacity:.5;
}
.photo-slot .lbl{
  position:absolute;top:18px;left:18px;z-index:2;
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);background:color-mix(in srgb,var(--bg) 78%,transparent);
  padding:6px 10px;backdrop-filter:blur(4px);
}
.photo-slot .hint{
  position:absolute;bottom:18px;left:18px;right:18px;z-index:2;
  font-family:var(--serif);font-style:italic;font-size:18px;color:var(--fg-dim);
  line-height:1.3;max-width:340px;
}
.photo-slot image-slot{
  display:block;width:100%;height:100%;position:absolute;inset:0;z-index:1;
}
.photo-slot.filled{background:transparent;border:0;overflow:hidden}
.photo-slot.filled::after{display:none}
.photo-slot.filled .lbl,.photo-slot.filled .hint{display:none}
.photo-slot.filled img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}

/* hero visual band — content + image side by side */
.hero-visual{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:60px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:80px}
.hero-visual .photo-slot{aspect-ratio:4/5;min-height:480px}
.hero-visual .copy h2{font-family:var(--serif);font-size:clamp(36px,4.6vw,68px);line-height:1;letter-spacing:-.025em;font-weight:400;margin-bottom:24px}
.hero-visual .copy h2 em{font-style:italic;color:var(--accent)}
.hero-visual .copy p{font-family:var(--serif);font-size:22px;line-height:1.45;color:var(--fg-dim);font-style:italic;max-width:520px;margin-bottom:24px}
.hero-visual .copy .meta{font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:24px}

/* schematic SVG diagram — pan-Asian, services-positioned */
.schema{
  width:100%;aspect-ratio:4/3;
  background:var(--bg-1);
  border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.schema svg{position:absolute;inset:0;width:100%;height:100%}
.schema .tag{
  position:absolute;top:18px;left:18px;
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);
}
.schema .caption{
  position:absolute;bottom:18px;left:18px;right:18px;
  font-family:var(--serif);font-style:italic;font-size:18px;color:var(--fg);
  line-height:1.3;
}
.schema .caption em{color:var(--accent)}
.schema-line{fill:none;stroke:var(--line-2);stroke-width:1.5}
.schema-line.accent{stroke:var(--accent)}
.schema-fill{fill:var(--accent);opacity:.12}
.schema-fill.solid{opacity:1}
.schema-dot{fill:var(--accent)}
.schema-label{font-family:'Geist Mono',ui-monospace,Menlo,monospace;font-size:10px;fill:var(--fg-dim);letter-spacing:.1em;text-transform:uppercase}

/* big typographic breaker — section divider with oversized numeral */
.breaker{
  display:grid;grid-template-columns:auto 1fr;gap:60px;align-items:center;
  padding:120px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.breaker .glyph{
  font-family:var(--serif);font-style:italic;
  font-size:clamp(180px,28vw,440px);line-height:.85;
  color:var(--accent);letter-spacing:-.04em;
  opacity:.9;
}
.breaker .glyph .dim{color:var(--fg-dim);opacity:.4}
.breaker .copy{max-width:580px}
.breaker .copy .eb{font-family:var(--mono);font-size:11px;color:var(--accent);letter-spacing:.28em;text-transform:uppercase;margin-bottom:18px}
.breaker .copy h3{font-family:var(--serif);font-weight:400;font-size:clamp(32px,3.6vw,52px);line-height:1.05;letter-spacing:-.02em;margin-bottom:18px}
.breaker .copy h3 em{font-style:italic;color:var(--accent)}
.breaker .copy p{font-family:var(--serif);font-style:italic;font-size:20px;line-height:1.45;color:var(--fg-dim)}

@media (max-width:1024px){
  .hero-visual{grid-template-columns:1fr;gap:32px}
  .hero-visual .photo-slot{min-height:320px}
  .breaker{grid-template-columns:1fr;gap:24px;padding:80px 0}
}

/* ── Mobile / tablet responsive (added v0.4) ───────────────────────── */
@media (max-width: 768px){
  .shell{padding:0 20px}
  .nav{padding:14px 18px;flex-wrap:wrap;gap:12px}
  .nav-mid{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;order:3;width:100%;padding-top:8px;border-top:1px solid var(--line)}
  .nav-right{gap:8px}
  .nav-right .btn{font-size:12px;padding:6px 12px}
  .nav-right .tgl button{font-size:11px;padding:4px 8px}
  .hero{padding:48px 0 70px}
  .hero-cols{grid-template-columns:1fr !important;gap:32px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .strip{grid-template-columns:repeat(2,1fr) !important;gap:20px;padding:24px 0;margin-top:60px}
  .strip-cell .v{font-size:32px}
  .caps{grid-template-columns:1fr !important}
  .cap{padding:28px 22px;min-height:auto;grid-template-columns:1fr !important;gap:18px}
  .cap .arr{top:28px;right:22px}
  .work-row{grid-template-columns:1fr !important;gap:8px;padding:22px 0;cursor:default}
  .work-row:hover{padding-left:0}
  .work-row .yr,.work-row .sector,.work-row .metric{font-size:12px}
  .work-row .name{font-size:22px}
  .eng{grid-template-columns:1fr !important;gap:36px}
  .eng-step{grid-template-columns:1fr !important;gap:8px;padding:20px 22px}
  .eng-step .when{text-align:left;min-width:auto}
  .testimony{grid-template-columns:1fr !important;gap:36px}
  .test-card blockquote{font-size:20px}
  .insights{grid-template-columns:1fr !important;gap:24px}
  .manifesto{padding:60px 0}
  .manifesto p{font-size:20px !important}
  .cta{padding:60px 0}
  .cta h2{font-size:36px !important}
  .sec-title{font-size:32px !important}
  h1.display{font-size:42px !important;line-height:1.05}
  .lede{font-size:18px !important}
  .foot-top{grid-template-columns:1fr 1fr !important;gap:24px}
  .foot-brand{grid-column:1 / -1}
  .regional-band figcaption{left:16px;bottom:16px}
  .regional-band figcaption .t{font-size:18px !important;padding:8px 12px}
}
@media (max-width: 480px){
  .shell{padding:0 16px}
  .strip{grid-template-columns:1fr 1fr !important}
  h1.display{font-size:34px !important}
  .sec-title{font-size:26px !important}
  .cta h2{font-size:28px !important}
  .foot-top{grid-template-columns:1fr !important}
}