/* Colors follow the original codhychina.com theme */
:root{
  --purple:#9463ae;
  --purple-dark:#6c3d86;
  --magenta:#a3309b;
  --blue:#2f5aae;
  --purple-light:#f7f5fc;
  --line:#e9e1f0;
  --text:#272626;
  --muted:#6b6670;
  --bg-soft:#f4f5f7;
  --radius:14px;
  --shadow:0 10px 30px rgba(60,30,80,.08);
  --shadow-hover:0 18px 40px rgba(60,30,80,.16);
  --brand-gradient:linear-gradient(135deg,rgba(139,92,161,.9) 0%,rgba(163,48,155,.9) 82%,rgba(65,88,208,.9) 100%);
  --wrap:1180px;
  font-size:17px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:"Noto Serif","Droid Serif",Georgia,"Times New Roman",serif;color:var(--text);line-height:1.75;background:#fff;-webkit-font-smoothing:antialiased}
main{overflow-x:clip}
img{max-width:100%;height:auto;display:block}
a{color:var(--purple);transition:color .2s}
a:hover{color:var(--purple-dark)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:2.8rem}h2{font-size:2.1rem}h3{font-size:1.35rem}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
section{padding:80px 0}
.soft{background:var(--purple-light)}
.center{text-align:center}
.muted{color:var(--muted)}
/* small accent line under centered section headings */
h2.center::after,.wrap.center>h2::after,section.center>.wrap>h2::after{content:"";display:block;width:56px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--purple),var(--blue));margin:18px auto 0}
.hero h2::after,.learn-more h2::after{display:none}

/* buttons */
.btn{display:inline-block;background:var(--purple);color:#fff;text-decoration:none;padding:12px 28px;border-radius:999px;font-weight:700;border:2px solid var(--purple);cursor:pointer;font-family:inherit;font-size:1rem;line-height:1.4;margin:4px 2px;transition:background .25s,color .25s,border-color .25s,transform .25s,box-shadow .25s}
.btn:hover{background:var(--purple-dark);border-color:var(--purple-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(148,99,174,.35)}
.btn-outline{background:transparent;color:var(--purple)}
.btn-outline:hover{background:var(--purple);border-color:var(--purple)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:90px;transition:min-height .3s}
.scrolled .header-inner{min-height:66px}
.logo img{height:60px;width:auto;transition:height .3s}
.scrolled .logo img{height:46px}
.main-nav>ul{display:flex;gap:2px;list-style:none;margin:0;padding:0;align-items:center}
.main-nav a{display:block;padding:10px 12px;text-decoration:none;color:var(--text);font-size:.95rem}
.main-nav>ul>li>a:not(.btn){position:relative}
.main-nav>ul>li>a:not(.btn)::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--purple);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.main-nav>ul>li:hover>a:not(.btn)::after,.main-nav>ul>li>a.active::after{transform:scaleX(1)}
.main-nav a:hover,.main-nav a.active{color:var(--purple)}
.main-nav li{position:relative}
.main-nav .has-sub>a::before{content:"▾";float:right;margin-left:5px;font-size:.7em}
.main-nav ul ul{position:absolute;left:0;top:100%;background:#fff;min-width:240px;list-style:none;margin:0;padding:8px 0;box-shadow:0 14px 34px rgba(0,0,0,.12);border-radius:10px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s}
.main-nav ul ul a{padding:8px 18px}
.main-nav ul ul a:hover{background:var(--purple-light)}
.main-nav ul ul ul{left:100%;top:-8px}
.main-nav li:hover>ul,.main-nav li:focus-within>ul{opacity:1;visibility:visible;transform:none}
.main-nav .btn-nav{color:#fff;padding:9px 20px;margin-left:8px}
.main-nav .btn-nav:hover{color:#fff}
.menu-toggle{display:none;background:none;border:0;font-size:1.8rem;cursor:pointer;color:var(--text)}

/* hero: Chinese pattern under the brand gradient, as on the original site */
.hero{background:var(--brand-gradient),url("/wp-content/uploads/2023/03/DALL·E-2023-03-26-11.28.30-vectors-with-multiple-small-chinese-classical-historical-patterns-and-images-.png") center/cover;color:#fff;text-align:center;padding:80px 0 0;position:relative;overflow:hidden}
.hero h1{font-size:4rem;margin-bottom:.15em;font-weight:400}
.hero h1 strong{font-weight:700}
.hero .date{font-size:2.3rem;font-weight:700;margin:0}
.hero .place{font-size:1.82rem;font-weight:700;margin:10px 0 0}
.hero .place::after{content:"";display:block;width:25%;min-width:120px;height:1px;background:rgba(255,255,255,.8);margin:22px auto 26px}
.hero .tagline{font-size:1.3rem;font-weight:700;max-width:760px;margin:0 auto 32px}
.hero .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.hero .btn{background:#fff;color:var(--purple);border-color:#fff}
.hero .btn:hover{background:transparent;color:#fff}
.hero .btn-outline{background:transparent;color:#fff;border-color:#fff}
.hero .btn-outline:hover{background:#fff;color:var(--purple)}
.hero-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:1040px;margin:0 auto}
.hero-photos img{aspect-ratio:3/2;object-fit:cover;width:100%;border-radius:10px 10px 0 0;box-shadow:0 -6px 30px rgba(0,0,0,.18)}

/* cards */
.map-bg{background:url("/wp-content/uploads/2023/03/map-image2.png") 53% 33%/cover no-repeat}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 30px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .3s,box-shadow .3s}
.card::before{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(90deg,var(--purple),var(--magenta),var(--blue))}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card h3{margin-bottom:18px}

/* countdown */
.countdown{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:30px}
.countdown div{text-align:center;min-width:130px;padding:22px 10px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.countdown span{display:block;font-size:2.8rem;font-weight:700;line-height:1.1;background:linear-gradient(135deg,var(--purple),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.countdown small{color:var(--muted);text-transform:uppercase;letter-spacing:.12em;font-size:.75rem}

/* welcome */
.two-col{display:grid;grid-template-columns:1fr 2fr;gap:56px;align-items:start}
.signers{display:flex;gap:36px;margin-top:24px;flex-wrap:wrap}
.signers div{text-align:center}
.signers img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 10px;border:4px solid #fff;box-shadow:var(--shadow)}

/* topics */
.topics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;list-style:none;padding:0;margin:40px 0 36px}
.topics li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--purple);padding:20px 22px;border-radius:10px;font-weight:700;box-shadow:0 4px 14px rgba(60,30,80,.05);transition:transform .25s,box-shadow .25s,border-color .25s}
.topics li:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-left-color:var(--blue)}

/* "Want to learn more": anatomy image under a dark overlay, as on the original site */
.learn-more{background:linear-gradient(rgba(39,38,38,.72),rgba(39,38,38,.72)),url("/wp-content/uploads/2023/03/Main-image.png") center/cover;color:#fff}
.learn-more .two-col{align-items:center}
.learn-more img{box-shadow:0 20px 50px rgba(0,0,0,.35)}
.learn-more .btn-outline{color:#fff;border-color:#fff}
.learn-more .btn-outline:hover{background:#fff;color:var(--purple)}

/* people */
.people{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:32px}
.person{text-align:center;text-decoration:none;color:var(--text);display:block}
.person img{width:170px;height:170px;object-fit:cover;border-radius:50%;margin:0 auto 14px;background:var(--purple-light);border:5px solid #fff;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
a.person:hover img{transform:scale(1.05);box-shadow:var(--shadow-hover)}
a.person:hover strong{color:var(--purple)}
.person strong{display:block;transition:color .2s}
.person span{display:block;color:var(--muted);font-size:.9rem}
.person .btn-sm{display:inline-block;margin:14px 0 0;padding:7px 20px;font-size:.85rem;color:#fff}
a.person:hover .btn-sm{background:var(--purple-dark);border-color:var(--purple-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(148,99,174,.35)}
.person .soon{display:inline-block;margin-top:14px;padding:6px 16px;font-size:.8rem;border:1px dashed #d8cde0;border-radius:999px}
.chairs{display:flex;gap:70px;justify-content:center;flex-wrap:wrap;margin-top:36px}

/* program */
.program-day{margin-bottom:44px}
.program-day>h2{background:linear-gradient(135deg,var(--purple),var(--magenta));color:#fff;padding:14px 22px;border-radius:10px;font-size:1.4rem}
.block{border:1px solid var(--line);border-radius:10px;margin:16px 0;overflow:hidden;background:#fff;transition:box-shadow .25s}
.block:hover{box-shadow:var(--shadow)}
.block>h3{background:var(--purple-light);margin:0;padding:12px 18px;font-size:1.1rem}
.block .chairs-line{padding:8px 18px 0;color:var(--muted);font-style:italic;margin:0}
.block ul{list-style:none;margin:0;padding:8px 18px 14px}
.block li{padding:6px 0;border-bottom:1px dashed #eee}
.block li:last-child{border-bottom:0}
.block .spk{font-weight:700;font-size:calc(1em + 1px);color:var(--text);font-style:normal}
.block .chairs-line .spk{font-style:italic}
.block .t{display:inline-block;min-width:110px;font-weight:700;color:var(--purple-dark)}
.halls{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.hall-label{font-size:.8rem;font-weight:700;color:var(--blue);text-transform:uppercase;letter-spacing:.05em;padding:10px 18px 0}
.note-row{background:var(--bg-soft);padding:10px 18px;border-radius:8px;margin:12px 0}

/* time table: one card per day, sessions as cards colour-coded by hall */
.tt-section{background:var(--purple-light)}
.tt-a{--hall:#9463ae}.tt-b{--hall:#a3309b}.tt-c{--hall:#2f5aae}
.tt-legend{display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:center;margin-bottom:30px;font-size:.88rem;color:var(--muted)}
.tt-key{display:inline-flex;align-items:center;gap:8px}
.tt-key::before{content:"";width:12px;height:12px;border-radius:4px;background:var(--hall)}
.tt-key.tt-lunch::before{background:#d9534f}
.tt-day-card{background:#fff;border-radius:20px;box-shadow:0 18px 50px rgba(60,30,80,.10);overflow:hidden;margin-bottom:44px}
.tt-day-head{display:flex;align-items:center;gap:18px;padding:24px 30px;background:var(--brand-gradient),url("/wp-content/uploads/2023/03/DALL·E-2023-03-26-11.28.30-vectors-with-multiple-small-chinese-classical-historical-patterns-and-images-.png") center/cover;color:#fff}
.tt-day-head h2{margin:0;font-size:1.6rem}
.tt-day-num{background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.45);border-radius:999px;padding:5px 14px;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap}
.tt-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:14px 18px 20px}
.timetable{width:100%;min-width:760px;border-collapse:separate;border-spacing:8px;font-size:.95rem;line-height:1.4}
.timetable th,.timetable td{text-align:left;vertical-align:middle;padding:0}
.timetable td{width:30%}
/* time column */
.tt-time{width:96px;padding-right:6px!important;font-variant-numeric:tabular-nums;white-space:nowrap;position:sticky;left:0;z-index:2;background:#fff;box-shadow:-18px 0 0 #fff}
.tt-halls th:first-child,.tt-plenary-head th:first-child{position:sticky;left:0;z-index:2;background:#fff;box-shadow:-18px 0 0 #fff,0 3px 0 #fff}
.tt-time b{display:block;font-size:1.15rem;color:var(--purple-dark)}
.tt-time span{display:block;font-size:.82rem;color:var(--muted)}
.tt-time span::before{content:"to "}
/* hall headers */
.tt-halls th[class]{text-align:center;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--hall);padding:10px 0 12px;border-bottom:3px solid var(--hall)}
.tt-plenary-head th[colspan]{text-align:center;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--purple-dark);padding:4px 0 10px;border-bottom:3px solid var(--purple-dark)}
/* session cards */
.tt-row td,.tt-sym td,.tt-plenary td{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;transition:transform .2s,box-shadow .2s}
.tt-row td{border-left:4px solid var(--hall)}
.tt-row td:nth-of-type(1),.tt-sym td:nth-of-type(1){--hall:#9463ae}
.tt-row td:nth-of-type(2),.tt-sym td:nth-of-type(2){--hall:#a3309b}
.tt-row td:nth-of-type(3),.tt-sym td:nth-of-type(3){--hall:#2f5aae}
.tt-row td:hover,.tt-sym td:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(60,30,80,.12)}
.tt-num{display:block;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--hall);margin-bottom:4px}
.tt-title{display:block;font-weight:700;color:var(--text)}
.tt-plenary td{background:linear-gradient(120deg,#f4ecf8,#fff 70%);border-left:4px solid var(--purple-dark);padding:16px 20px}
.tt-plenary .tt-title{font-size:1.05rem}
.tt-sub{list-style:none;margin:10px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px}
.tt-sub li{color:var(--muted)}
.tt-sub time{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;padding:1px 10px;margin-right:8px;font-size:.82rem;font-weight:700;color:var(--purple-dark)}
.tt-sym td{background:#fff6f5;border:1px dashed #f0b8b4;border-left:4px solid #d9534f}
.tt-sym .tt-title{color:#b8322c;font-weight:400;font-style:italic}
.tt-break td{text-align:center;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:10px;border-radius:12px;background:repeating-linear-gradient(135deg,#faf7fc 0 10px,#f3eef7 10px 20px)}

/* info list */
.info-list{display:grid;gap:20px}
.info-list h3{color:var(--purple);font-size:1.05rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.logos{display:flex;gap:30px;align-items:center;flex-wrap:wrap}
.logos img{height:80px;width:auto}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.gallery img{aspect-ratio:3/2;object-fit:cover;width:100%;border-radius:10px;transition:transform .35s,box-shadow .35s}
.gallery img:hover{transform:scale(1.03);box-shadow:var(--shadow-hover)}
.name-list{line-height:2}

/* registration */
.price-box{max-width:560px;margin:0 auto;border:1px solid var(--line);border-top:5px solid var(--purple);border-radius:var(--radius);padding:40px;text-align:center;box-shadow:var(--shadow)}
.price{font-size:2.8rem;font-weight:700;color:var(--purple);margin:10px 0}
.notice{background:#fff7e6;border:1px solid #ffd58a;padding:14px 18px;border-radius:10px;margin:20px 0}

/* forms */
form.contact{display:grid;gap:14px;max-width:560px}
form.contact input,form.contact textarea{width:100%;padding:12px 14px;border:1px solid #d8d0de;border-radius:10px;font:inherit;transition:border-color .2s,box-shadow .2s}
form.contact input:focus,form.contact textarea:focus{outline:0;border-color:var(--purple);box-shadow:0 0 0 3px rgba(148,99,174,.18)}
.offices{display:grid;grid-template-columns:1fr 1fr;gap:30px}

/* page title */
.page-title{background:var(--brand-gradient),url("/wp-content/uploads/2023/03/DALL·E-2023-03-26-11.28.30-vectors-with-multiple-small-chinese-classical-historical-patterns-and-images-.png") center/cover;color:#fff;padding:70px 0;text-align:center}
.page-title h1{margin:0}
.page-title p{margin:10px 0 0;font-size:1.1rem;opacity:.92}
.prose{max-width:860px}
.prose p{margin:0 0 1em}

/* footer */
.site-footer{background:linear-gradient(160deg,#2b1531 0%,#3b1c46 100%);color:#d9cfdd;padding:60px 0 22px;margin-top:0}
.site-footer a{color:#e9c6f0;text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-logo{height:54px;width:auto;background:#fff;padding:6px 10px;border-radius:8px;margin-bottom:14px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{padding:3px 0}
.site-footer h4{color:#fff}
.copyright{border-top:1px solid #4a2e52;margin-top:36px;padding-top:18px;font-size:.85rem;color:#a99aae}

/* back to top */
.to-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;border:0;background:var(--purple);color:#fff;font-size:1.3rem;cursor:pointer;box-shadow:0 8px 20px rgba(0,0,0,.2);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .3s,transform .3s,visibility .3s,background .2s;z-index:40}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--purple-dark)}

/* scroll animations: hidden only once site.js is running (html.anim), revealed with .in */
.anim [data-anim]{opacity:0}
.anim [data-anim].in{opacity:1;animation-duration:.9s;animation-fill-mode:both;animation-timing-function:cubic-bezier(.2,.7,.2,1);animation-delay:var(--d,0s)}
.anim [data-anim="fade-up"].in{animation-name:fadeUp}
.anim [data-anim="fade-down"].in{animation-name:fadeDown}
.anim [data-anim="slide-right"].in{animation-name:slideRight}
.anim [data-anim="bounce-in"].in{animation-name:bounceIn;animation-duration:.8s}
.anim [data-anim="bounce-down"].in{animation-name:bounceDown;animation-duration:1s;animation-timing-function:cubic-bezier(.215,.61,.355,1)}
.anim [data-anim="zoom-in"].in{animation-name:zoomIn}
@keyframes fadeUp{from{opacity:0;transform:translate3d(0,36px,0)}to{opacity:1;transform:none}}
@keyframes fadeDown{from{opacity:0;transform:translate3d(0,-50px,0)}to{opacity:1;transform:none}}
@keyframes slideRight{from{opacity:0;transform:translate3d(140px,0,0)}to{opacity:1;transform:none}}
@keyframes zoomIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}
@keyframes bounceIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}20%{transform:scale3d(1.1,1.1,1.1)}40%{transform:scale3d(.9,.9,.9)}60%{opacity:1;transform:scale3d(1.03,1.03,1.03)}80%{transform:scale3d(.97,.97,.97)}to{opacity:1;transform:none}}
@keyframes bounceDown{0%{opacity:0;transform:translate3d(0,-200px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .anim [data-anim]{opacity:1}
  .anim [data-anim].in{animation:none}
  *{transition-duration:0s!important}
}

@media (max-width:900px){
  :root{font-size:16px}
  section{padding:60px 0}
  .menu-toggle{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 8px 16px rgba(0,0,0,.1);max-height:80vh;overflow:auto}
  .main-nav.open{display:block}
  .main-nav>ul{flex-direction:column;align-items:stretch;padding:10px 0}
  .main-nav>ul>li>a:not(.btn)::after{display:none}
  .main-nav ul ul{position:static;box-shadow:none;padding-left:16px;opacity:1;visibility:visible;transform:none}
  .main-nav .btn-nav{margin:8px 12px;text-align:center}
  .hero h1{font-size:2.6rem}.hero .date{font-size:1.6rem}
  h1{font-size:2.2rem}h2{font-size:1.7rem}
  .cards,.topics,.halls,.two-col,.footer-grid,.offices{grid-template-columns:1fr}
  .two-col{gap:30px}
  .hero-photos{grid-template-columns:1fr 1fr}.hero-photos img:nth-child(3){display:none}
  .countdown{gap:12px}
  .countdown div{min-width:72px;padding:14px 8px 10px}
  .countdown span{font-size:2rem}
  .chairs{gap:36px}
  .tt-day-head{padding:18px 20px;gap:12px}
  .tt-day-head h2{font-size:1.25rem}
  .tt-scroll{padding:8px 8px 14px}
}