/* Perth Jielu — shared styles */
:root{
  --aqua-50:#F4FBF9;
  --aqua-100:#E3F3F0;
  --aqua-200:#C6E6E1;
  --aqua-300:#9BD3CC;
  --aqua-600:#2E8B7F;
  --aqua-700:#236F66;
  --aqua-900:#12403B;
  --ink:#152C2A;
  --ink-soft:#43605C;
  --white:#FFFFFF;
  --gold:#C99A3F;
  --rule:rgba(21,44,42,.14);
  --rule-light:rgba(255,255,255,.22);
  --shadow:0 1px 2px rgba(18,64,59,.06),0 8px 24px rgba(18,64,59,.07);
  --w:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--aqua-50);color:var(--ink);
  font-family:Figtree,"Noto Sans SC",system-ui,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:"Source Serif 4","Noto Serif SC",Georgia,serif;font-weight:400;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,5.4vw,3.5rem);line-height:1.08}
h2{font-size:clamp(1.7rem,3.4vw,2.35rem);line-height:1.16}
h3{font-size:1.24rem;line-height:1.3}
h4{font-size:1.02rem}
p{margin:0 0 1em}
a{color:var(--aqua-700)}
img{max-width:100%;display:block}
.wrap{max-width:var(--w);margin:0 auto;padding:0 22px}
.band{padding:72px 0}
.band-alt{background:var(--aqua-100)}
.band-deep{background:var(--aqua-900);color:var(--white)}
.band-deep h2,.band-deep h3{color:var(--white)}
.band-deep a{color:var(--aqua-200)}
.lede{font-size:1.08rem;color:var(--ink-soft);max-width:64ch}
.band-deep .lede{color:#C8DEDA}
.eyebrow{font-size:.9rem;color:var(--aqua-700);margin-bottom:10px}
:focus-visible{outline:2.5px solid var(--aqua-600);outline-offset:3px}
.center{text-align:center}
.mt-0{margin-top:0}

/* language switching */
body[data-lang="en"] [data-l="zh"]{display:none}
body[data-lang="zh"] [data-l="en"]{display:none}
body[data-lang="zh"]{font-family:"Noto Sans SC",Figtree,system-ui,sans-serif}
body[data-lang="zh"] h1,body[data-lang="zh"] h2,
body[data-lang="zh"] h3,body[data-lang="zh"] h4{font-family:"Noto Serif SC","Source Serif 4",serif}

/* buttons */
.btn{
  display:inline-block;background:var(--aqua-600);color:var(--white);
  text-decoration:none;font-weight:600;font-size:.96rem;font-family:inherit;
  padding:12px 22px;border:none;border-radius:6px;cursor:pointer;
}
.btn:hover{background:var(--aqua-700)}
.btn-ghost{background:transparent;color:var(--aqua-700);border:1.5px solid var(--aqua-300)}
.btn-ghost:hover{background:var(--aqua-100);color:var(--aqua-900)}
.band-deep .btn-ghost{color:var(--white);border-color:var(--rule-light)}
.band-deep .btn-ghost:hover{background:rgba(255,255,255,.1)}

/* header */
header{position:sticky;top:0;z-index:60;background:rgba(244,251,249,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.bar{display:flex;align-items:center;gap:18px;max-width:var(--w);margin:0 auto;padding:12px 22px}
.brand{display:flex;align-items:baseline;gap:9px;text-decoration:none;color:var(--ink);white-space:nowrap}
.brand b{font-family:"Source Serif 4",serif;font-weight:500;font-size:1.3rem}
.brand span{font-family:"Noto Serif SC",serif;font-size:1.02rem;color:var(--aqua-700)}
nav{margin-left:auto;display:flex;align-items:center;gap:24px}
nav a{font-size:.95rem;text-decoration:none;color:var(--ink)}
nav a:hover,nav a[aria-current="page"]{color:var(--aqua-700)}
nav a[aria-current="page"]{font-weight:600}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--rule);border-radius:6px;padding:9px 11px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0}
@media(max-width:900px){
  .burger{display:block}
  nav{
    position:fixed;inset:61px 0 auto 0;background:var(--aqua-50);border-bottom:1px solid var(--rule);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 22px 20px;margin:0;display:none;
  }
  nav.open{display:flex}
  nav a{padding:14px 0;border-bottom:1px solid var(--rule);font-size:1.05rem}
  nav .btn{margin-top:14px;text-align:center;border-bottom:none}
}

/* floating language toggle */
.lang-fab{
  position:fixed;right:18px;bottom:18px;z-index:80;
  display:flex;background:var(--white);border:1px solid var(--aqua-200);
  border-radius:100px;box-shadow:var(--shadow);overflow:hidden;
}
.lang-fab button{
  font:inherit;font-size:.86rem;font-weight:600;padding:9px 15px;
  background:none;border:none;cursor:pointer;color:var(--ink-soft);
}
.lang-fab button[aria-pressed="true"]{background:var(--aqua-600);color:var(--white)}

/* hero */
.hero{background:linear-gradient(170deg,var(--aqua-100) 0%,var(--aqua-50) 72%);padding:70px 0 66px;border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:34px}}
.hero h1{max-width:16ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* credential strip */
.creds{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:8px;overflow:hidden}
@media(max-width:820px){.creds{grid-template-columns:repeat(2,1fr)}}
.creds div{background:var(--white);padding:20px}
.creds strong{display:block;font-family:"Source Serif 4",serif;font-size:1.6rem;font-weight:400;color:var(--aqua-700)}
.creds p{margin:4px 0 0;font-size:.88rem;color:var(--ink-soft)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.cards.two{grid-template-columns:repeat(2,1fr)}
@media(max-width:960px){.cards,.cards.three{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cards,.cards.three,.cards.two{grid-template-columns:1fr}}
.card{background:var(--white);border:1px solid var(--aqua-200);border-radius:10px;padding:24px;text-decoration:none;color:inherit;display:block}
a.card:hover{border-color:var(--aqua-600)}
.card h3{margin-bottom:8px}
.card p{color:var(--ink-soft);font-size:.95rem;margin-bottom:0}
.card .more{display:inline-block;margin-top:14px;color:var(--aqua-700);font-size:.92rem;font-weight:600}

/* pathway blocks */
.path{background:var(--white);border:1px solid var(--aqua-200);border-radius:10px;margin-bottom:18px;overflow:hidden}
.path > summary{
  cursor:pointer;list-style:none;padding:20px 24px;display:flex;gap:14px;align-items:center;
  font-family:"Source Serif 4",serif;font-size:1.2rem;background:var(--white);
}
body[data-lang="zh"] .path > summary{font-family:"Noto Serif SC",serif}
.path > summary::-webkit-details-marker{display:none}
.path > summary::after{content:"+";margin-left:auto;color:var(--aqua-600);font-size:1.35rem;line-height:1}
.path[open] > summary::after{content:"–"}
.path > summary:hover{background:var(--aqua-50)}
.path .body{padding:4px 24px 24px;border-top:1px solid var(--aqua-100)}
.route{display:grid;grid-template-columns:1fr 210px;gap:24px;padding:16px 0;border-bottom:1px dashed var(--rule)}
.route:last-child{border-bottom:none;padding-bottom:0}
@media(max-width:760px){.route{grid-template-columns:1fr;gap:8px}}
.route h4{margin-bottom:6px}
.route p{margin:0;color:var(--ink-soft);font-size:.95rem}
.chain{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:8px 0 0;padding:0;list-style:none}
.chain li{background:var(--aqua-100);border-radius:5px;padding:5px 11px;font-size:.9rem}
.chain li+li::before{content:"→";color:var(--aqua-600);margin-right:9px;margin-left:-3px}
.intake{background:var(--aqua-50);border-left:3px solid var(--aqua-300);padding:12px 14px;font-size:.9rem;color:var(--ink-soft);border-radius:0 6px 6px 0}
.intake b{display:block;color:var(--ink);font-weight:600;font-size:.82rem;margin-bottom:3px}

/* visa list */
.visa{background:var(--white);border:1px solid var(--aqua-200);border-radius:10px;padding:22px 24px;display:grid;grid-template-columns:96px 1fr;gap:20px;margin-bottom:14px}
@media(max-width:640px){.visa{grid-template-columns:1fr;gap:6px}}
.visa .code{font-family:"Source Serif 4",serif;font-size:1.45rem;color:var(--aqua-700);line-height:1.1}
.visa .code small{display:block;font-family:Figtree,sans-serif;font-size:.74rem;color:var(--ink-soft);margin-top:3px}
.visa h3{margin-bottom:8px}
.visa ul{margin:0;padding-left:19px;color:var(--ink-soft);font-size:.96rem}
.visa li{margin-bottom:5px}
.visa p{color:var(--ink-soft);font-size:.96rem;margin-bottom:0}

/* carousel */
.carousel-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{font:inherit;font-size:.92rem;padding:8px 16px;border-radius:100px;border:1px solid var(--aqua-200);background:var(--white);cursor:pointer;color:var(--ink-soft)}
.tab[aria-pressed="true"]{background:var(--aqua-600);border-color:var(--aqua-600);color:var(--white);font-weight:600}
.carousel-nav{margin-left:auto;display:flex;gap:8px}
.carousel-nav button{width:38px;height:38px;border-radius:50%;border:1px solid var(--aqua-200);background:var(--white);cursor:pointer;font-size:1.05rem;color:var(--aqua-700)}
.carousel-nav button:hover{background:var(--aqua-100)}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:thin}
.uni{
  flex:0 0 200px;scroll-snap-align:start;background:var(--white);
  border:1px solid var(--aqua-200);border-radius:10px;padding:22px 18px;text-align:center;
}
.uni .logo{
  height:74px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;
  background:var(--aqua-100);border-radius:8px;color:var(--aqua-700);
  font-family:"Source Serif 4",serif;font-size:1.5rem;letter-spacing:.02em;
}
.uni .logo.has-img{background:var(--white);border:1px solid var(--aqua-100);padding:8px}
.uni .logo img{max-height:56px;max-width:100%;width:auto;object-fit:contain}
.uni h4{font-size:.98rem;line-height:1.3}
.uni p{font-size:.84rem;color:var(--ink-soft);margin:5px 0 0}

/* people */
.person{display:grid;grid-template-columns:190px 1fr;gap:30px;align-items:start;margin-bottom:44px}
@media(max-width:700px){.person{grid-template-columns:1fr;gap:18px}}
.portrait{
  aspect-ratio:3/4;background:var(--aqua-100);border-radius:10px;
  display:flex;align-items:center;justify-content:center;color:var(--aqua-700);
  font-size:.82rem;text-align:center;padding:12px;border:1px dashed var(--aqua-300);
}
.portrait img{width:100%;height:100%;object-fit:cover;border-radius:10px}
.person h3{margin-bottom:2px}
.person .role{color:var(--aqua-700);font-size:.95rem;margin-bottom:12px}
.person ul{margin:0;padding-left:19px;color:var(--ink-soft);font-size:.96rem}
.person li{margin-bottom:5px}

/* forms */
form{display:grid;gap:16px}
label{display:block;font-size:.88rem;margin-bottom:6px;font-weight:600}
.req{color:var(--aqua-700)}
input,select,textarea{
  width:100%;font:inherit;font-size:1rem;color:var(--ink);background:var(--white);
  border:1px solid var(--aqua-200);border-radius:6px;padding:12px 14px;
}
input:focus,select:focus,textarea:focus{border-color:var(--aqua-600)}
textarea{min-height:120px;resize:vertical}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:700px){.row{grid-template-columns:1fr}}
.consent{display:flex;gap:11px;align-items:flex-start;font-size:.88rem;color:var(--ink-soft);font-weight:400}
.consent input{width:auto;margin-top:5px}
.status{font-size:.95rem;min-height:1.4em;margin:0}
.status.err{color:#B4462F}
.status.ok{color:var(--aqua-700);font-weight:600}
.field-error{border-color:#B4462F!important}

/* contact info list */
.info{list-style:none;margin:0;padding:0}
.info li{padding:14px 0;border-bottom:1px solid var(--rule)}
.info b{display:block;font-size:.8rem;color:var(--ink-soft);font-weight:600;margin-bottom:3px}
.info a{text-decoration:none}

/* footer */
footer{background:var(--aqua-900);color:#B8D4D0;font-size:.9rem;padding:48px 0 40px}
footer a{color:#D6EAE7}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;gap:26px}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h4{font-family:Figtree,sans-serif;font-size:.82rem;font-weight:700;color:var(--white);margin:0 0 12px}
.foot-grid p{margin:0 0 10px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:8px}
.foot-grid a{text-decoration:none}
.foot-grid a:hover{text-decoration:underline}
.disclaimer{margin-top:36px;padding-top:22px;border-top:1px solid var(--rule-light);font-size:.81rem;line-height:1.6;max-width:88ch}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}