/* ===========================================================
   GC Dental Campus — shared design system
   =========================================================== */
:root{
  --ink:#0A1F1C;--ink-2:#0F2B27;--teal-900:#04413A;--teal-700:#007E72;--teal-600:#00A893;--teal-500:#19BBAA;--teal-300:#67D9CB;
  --mint-50:#EFFAF7;--mint-100:#DCF3EE;--amber:#F6A04A;--coral:#FF7A66;--bg:#F6F9F8;--surface:#FFFFFF;--line:#E4ECEA;
  --text:#173733;--muted:#5C726E;--muted-2:#889995;--radius:22px;--radius-sm:14px;
  --shadow-sm:0 1px 2px rgba(10,31,28,.06),0 4px 14px rgba(10,31,28,.05);
  --shadow-md:0 10px 30px rgba(10,31,28,.10);--shadow-lg:0 30px 70px rgba(10,31,28,.18);--maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Inter',sans-serif;color:var(--ink);line-height:1.14;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:'Inter',sans-serif}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-weight:600;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-600)}
.eyebrow::before{content:"";width:24px;height:2px;background:currentColor;display:inline-block;border-radius:2px;opacity:.85}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;font-size:.95rem;padding:.85rem 1.5rem;border-radius:999px;cursor:pointer;border:1px solid transparent;transition:.2s ease;white-space:nowrap}
.btn-primary{background:var(--teal-600);color:#fff;box-shadow:0 8px 20px rgba(0,168,147,.3)}
.btn-primary:hover{background:var(--teal-700);transform:translateY(-2px)}
.btn-primary.glow{box-shadow:0 0 0 1px rgba(0,168,147,.35),0 8px 22px rgba(0,168,147,.42)}
.btn-primary.glow:hover{box-shadow:0 0 0 1px rgba(0,168,147,.55),0 12px 30px rgba(0,168,147,.6)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal-300);color:var(--teal-700)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25);backdrop-filter:blur(6px)}
.btn-light:hover{background:rgba(255,255,255,.2)}
.btn-white{background:#fff;color:var(--teal-700)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* top bar + header */
.topbar{background:var(--ink);color:#cfe6e1;font-size:.8rem}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:1rem}
.topbar a{opacity:.85}.topbar a:hover{opacity:1;color:#fff}
.topbar .tb-left{display:flex;gap:1.4rem;align-items:center}
.topbar .tb-left span{display:inline-flex;align-items:center;gap:.4rem}
.dot{width:6px;height:6px;border-radius:50%;background:var(--teal-500);box-shadow:0 0 0 4px rgba(22,181,163,.18)}
.header{position:sticky;top:0;z-index:50;background:rgba(246,249,248,.82);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.25s}
.header.scrolled{background:rgba(255,255,255,.9);border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(0,168,147,.28),0 14px 34px rgba(10,31,28,.10)}
.hdr-line{height:2px;width:100%;background:linear-gradient(90deg,var(--teal-700),var(--teal-300),var(--amber),var(--teal-600),var(--teal-700));background-size:300% 100%;animation:hdrslide 9s linear infinite;opacity:.9}
@keyframes hdrslide{to{background-position:300% 0}}
.nav{display:flex;align-items:center;justify-content:space-between;height:80px;gap:1.9rem}
.brand{flex:none;display:flex;align-items:center}
.logo-img{height:38px;width:auto;max-width:none;flex-shrink:0;display:block;transition:transform .3s}
.brand:hover .logo-img{transform:translateY(-1px) scale(1.02)}
.menu{display:flex;align-items:center;gap:.55rem}
.menu a{font-weight:500;font-size:.9rem;color:var(--text);padding:.6rem .9rem;border-radius:10px;transition:.18s;position:relative;white-space:nowrap}
.menu a::after{content:"";position:absolute;left:.9rem;right:.9rem;bottom:.32rem;height:2px;background:linear-gradient(90deg,var(--teal-600),var(--teal-300));border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .26s cubic-bezier(.6,.2,.1,1)}
.menu a:hover{color:var(--teal-700)}.menu a:hover::after,.menu a.active::after{transform:scaleX(1)}
.menu a.active{color:var(--teal-700)}
.nav-right{display:flex;align-items:center;gap:.95rem}
.login-link{font-weight:600;font-size:.92rem;color:var(--ink);padding:.5rem .4rem}.login-link:hover{color:var(--teal-700)}
.lang{position:relative;display:flex;align-items:center;gap:.4rem;font-weight:600;font-size:.85rem;color:var(--text);padding:.5rem .7rem;border-radius:10px;border:1px solid var(--line);cursor:pointer;background:#fff;user-select:none}
.lang:hover{border-color:var(--teal-300)}.lang.open{border-color:var(--teal-300);color:var(--teal-700)}
.chev{font-size:.6em;opacity:.7;transition:transform .22s}.lang.open .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 12px);right:0;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:8px;min-width:190px;opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top right;transition:.2s cubic-bezier(.6,.2,.1,1);z-index:70}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu a{display:flex;align-items:center;gap:.7rem;padding:.55rem .7rem;border-radius:10px;font-size:.88rem;font-weight:500;color:var(--text)}
.lang-menu a:hover{background:var(--mint-100);color:var(--teal-700)}
.lang-menu a b{width:26px;font-size:.74rem;font-weight:700;color:var(--teal-700);letter-spacing:.04em}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px}

/* page banner */
.page-banner{position:relative;overflow:hidden;background:radial-gradient(900px 460px at 80% -20%,rgba(22,181,163,.34),transparent 60%),linear-gradient(160deg,var(--ink),var(--teal-900) 70%);color:#eaf6f3;padding:60px 0 64px}
.page-banner::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}
.page-banner .wrap{position:relative;z-index:2}
.page-banner .eyebrow{color:var(--teal-300)}
.page-banner h1{color:#fff;font-size:clamp(2rem,3.6vw,3rem);font-weight:800;margin:1rem 0 .7rem}
.page-banner p{color:#bcd9d3;max-width:44rem;font-size:1.06rem}
.crumbs{display:flex;align-items:center;gap:.5rem;font-size:.84rem;color:#9fc4bd;margin-bottom:.2rem}
.crumbs a:hover{color:#fff}.crumbs i{font-size:.6rem;opacity:.6}

/* section */
.section{padding:70px 0}
.sec-head{margin-bottom:36px}
.sec-head h2{font-size:clamp(1.7rem,2.6vw,2.2rem);font-weight:700;margin-top:.6rem}
.sec-head p{color:var(--muted);margin-top:.5rem;max-width:42rem}

/* webinar cards (shared with homepage) */
.wgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.25s;display:flex;flex-direction:column;position:relative}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--teal-500),var(--teal-300));transform:scaleX(0);transform-origin:left;transition:transform .32s cubic-bezier(.6,.2,.1,1);z-index:4}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--mint-100)}
.card:hover::before{transform:scaleX(1)}
.card-media{position:relative;height:172px;background:linear-gradient(135deg,var(--teal-700),var(--teal-500));overflow:hidden;display:flex;align-items:flex-end;justify-content:center}
.card-media.v2{background:linear-gradient(135deg,#15514A,#1C8C7C)}
.card-media.v3{background:linear-gradient(135deg,#0A6E63,#16B5A3)}
.card-media img{height:158px;width:auto;object-fit:contain;filter:drop-shadow(0 10px 18px rgba(0,0,0,.25))}
.card-media .two{display:flex;align-items:flex-end}
.card-media .two img{height:150px;margin:0 -10px}
.media-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:flex-start;z-index:2}
.ce-badge{background:#fff;color:var(--teal-700);font-weight:700;font-size:.72rem;padding:.3rem .55rem;border-radius:8px;display:inline-flex;align-items:center;gap:.25rem;box-shadow:var(--shadow-sm)}
.ce-badge b{color:var(--amber)}
.fmt{background:rgba(10,31,28,.55);color:#fff;font-weight:600;font-size:.68rem;padding:.3rem .55rem;border-radius:8px;backdrop-filter:blur(4px);letter-spacing:.03em}
.fmt.live{background:rgba(255,122,102,.92)}
.langs{position:absolute;bottom:10px;left:12px;display:flex;gap:4px;z-index:2}
.langs span{background:rgba(255,255,255,.92);color:var(--ink);font-size:.6rem;font-weight:700;padding:2px 5px;border-radius:5px;letter-spacing:.03em}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:.7rem;flex:1}
.card-body h3{font-size:1.04rem;font-weight:600;line-height:1.3;color:var(--ink)}
.card-body h3 a:hover{color:var(--teal-700)}
.speakers{display:flex;align-items:center;gap:.55rem;margin-top:auto}
.avts{display:flex}
.avts img{width:30px;height:30px;border-radius:50%;object-fit:cover;border:2px solid #fff;margin-left:-8px;background:var(--mint-100)}
.avts img:first-child{margin-left:0}
.speakers small{font-size:.8rem;color:var(--muted);font-weight:500}
.card-foot{display:flex;align-items:center;justify-content:space-between;padding-top:.5rem;border-top:1px solid var(--line);margin-top:.3rem}
.card-foot .lock{font-size:.78rem;color:var(--muted-2);display:inline-flex;align-items:center;gap:.35rem}
.card-foot a.det{font-weight:600;font-size:.85rem;color:var(--teal-700)}

/* footer */
footer{background:var(--ink);color:#9fc4bd;padding:64px 0 30px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand p{margin-top:1rem;font-size:.9rem;max-width:20rem;color:#88a7a1}
.foot-col h4{color:#fff;font-size:.95rem;margin-bottom:1rem}
.foot-col a{display:block;font-size:.9rem;margin-bottom:.6rem;color:#9fc4bd}.foot-col a:hover{color:var(--teal-300)}
.pace{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px;font-size:.74rem;color:#7fa39c;line-height:1.5}.pace b{color:#cfe6e1}
.partners{display:flex;gap:1.6rem;align-items:center;margin-top:1.4rem;flex-wrap:wrap}
.partners img{height:24px;filter:brightness(0) invert(1);opacity:.55;transition:.2s}.partners img:hover{opacity:1}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:24px;flex-wrap:wrap;gap:1rem;font-size:.82rem}
.foot-bottom .langsel{display:flex;gap:.4rem;flex-wrap:wrap}
.foot-bottom .langsel a{padding:.25rem .55rem;border:1px solid rgba(255,255,255,.12);border-radius:7px;font-weight:600;font-size:.72rem;color:#9fc4bd}
.foot-bottom .langsel a:hover,.foot-bottom .langsel a.on{background:var(--teal-600);color:#fff;border-color:var(--teal-600)}

/* mobile menu */
.mobile-menu{display:none;position:fixed;inset:0;z-index:60;background:rgba(10,31,28,.5);backdrop-filter:blur(4px)}
.mobile-menu .panel{position:absolute;right:0;top:0;bottom:0;width:min(86vw,360px);background:#fff;padding:28px 24px;display:flex;flex-direction:column;gap:.4rem;box-shadow:var(--shadow-lg);animation:slidein .25s ease;overflow-y:auto}
@keyframes slidein{from{transform:translateX(100%)}to{transform:translateX(0)}}
.mobile-menu a{font-weight:600;padding:.85rem .6rem;border-radius:10px;color:var(--ink)}.mobile-menu a:hover{background:var(--mint-100)}
.mobile-menu .close{align-self:flex-end;background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--ink);margin-bottom:.5rem}
.mobile-menu hr{border:0;border-top:1px solid var(--line);margin:.6rem 0}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* content / legal prose */
.content{max-width:780px;margin:0 auto}
.content h2{font-size:1.35rem;margin:2rem 0 .8rem}
.content h2:first-child{margin-top:0}
.content h3{font-size:1.05rem;margin:1.4rem 0 .5rem}
.content p{color:var(--muted);margin-bottom:1rem;line-height:1.75}
.content ul{margin:0 0 1rem 1.1rem;color:var(--muted)}
.content li{margin-bottom:.5rem;line-height:1.7}
.content a{color:var(--teal-700);font-weight:600}
.content strong{color:var(--text)}
.address{background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal-500);border-radius:0 14px 14px 0;padding:22px 26px;font-style:normal;line-height:1.8;color:var(--text)}
.address b{display:block;font-size:1.05rem;margin-bottom:.3rem}
.updated{font-size:.84rem;color:var(--muted-2);margin-bottom:1.6rem}

/* accordion */
.accordion{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.acc{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:.2s}
.acc.open{border-color:var(--teal-300);box-shadow:var(--shadow-sm)}
.acc-q{width:100%;text-align:left;background:none;border:0;cursor:pointer;padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-family:'Inter';font-weight:600;font-size:1rem;color:var(--ink)}
.acc-q .ic{flex:none;width:28px;height:28px;border-radius:8px;background:var(--mint-100);color:var(--teal-700);display:grid;place-items:center;transition:.25s}
.acc.open .acc-q .ic{background:var(--teal-600);color:#fff;transform:rotate(45deg)}
.acc-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-a-inner{padding:0 22px 20px;color:var(--muted);line-height:1.7;font-size:.94rem}
.acc-a-inner a{color:var(--teal-700);font-weight:600}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);margin-bottom:18px}
.contact-card .ic{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--teal-500),var(--teal-700));color:#fff;display:grid;place-items:center;font-size:1.1rem;margin-bottom:1rem}
.contact-card h3{font-size:1.05rem;margin-bottom:.4rem}
.contact-card p{color:var(--muted);font-size:.92rem;line-height:1.7}
.contact-card a{color:var(--teal-700);font-weight:600}
.cform{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm)}
.cform .fld{margin-bottom:16px}
.cform label{display:block;font-size:.82rem;font-weight:600;color:var(--text);margin-bottom:.4rem}
.cform input,.cform textarea,.cform select{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:.8rem 1rem;font-size:.95rem;color:var(--text);outline:none;transition:.2s;background:#fff}
.cform textarea{min-height:130px;resize:vertical}
.cform input:focus,.cform textarea:focus,.cform select:focus{border-color:var(--teal-500);box-shadow:0 0 0 4px rgba(0,168,147,.12)}
.cform .btn{width:100%;justify-content:center}
.cform .sent{display:none;text-align:center;padding:10px;color:var(--teal-700);font-weight:600}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}}

@media(max-width:1100px){
  .menu,.nav-right .lang,.nav-right .login-link{display:none}
  .burger{display:flex}
  .wgrid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .section{padding:52px 0}
  .wgrid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}

/* vertical Japanese accent (used on dark banners/heroes) */
.jp-accent{position:absolute;right:30px;top:50%;transform:translateY(-50%);writing-mode:vertical-rl;z-index:2;letter-spacing:.42em;font-weight:700;font-size:.76rem;color:rgba(255,255,255,.42);text-transform:uppercase;pointer-events:none;user-select:none;white-space:nowrap}
.jp-accent .jp{font-size:1.15rem;letter-spacing:.2em;color:var(--teal-300)}
@media(max-width:1000px){.jp-accent{display:none}}
/* ============================================================
   Mobile optimization pass (senior UX/UI)
   ============================================================ */
@media (max-width:820px){
  .topbar .tb-left span:nth-child(n+2){display:none}
}
@media (max-width:600px){
  .wrap{padding-left:18px;padding-right:18px}
  .nav{height:66px}
  .nav-right .btn{display:none}
  /* prevent iOS auto-zoom on focus */
  input,select,textarea,
  .field input,.field select,
  .cform input,.cform select,.cform textarea,
  .pform input,.pform select{font-size:16px}
  /* account: continue-watching thumbnails */
  .cw-thumb{width:96px;height:60px}
  .cw-thumb img{height:50px}
  .cw-info h3{font-size:.9rem}
}
@media (max-width:480px){
  .hero-cta .btn,.s-hero .hero-cta .btn{flex:1 1 100%;justify-content:center}
}
/* ===== Elegant mobile menu ===== */
.mobile-menu{display:block;visibility:hidden;pointer-events:none;position:fixed;inset:0;z-index:60;transition:visibility 0s .42s}
.mobile-menu.open{visibility:visible;pointer-events:auto;transition-delay:0s}
.mobile-menu .ov{position:absolute;inset:0;background:rgba(6,30,27,.55);backdrop-filter:blur(4px);opacity:0;transition:opacity .35s ease}
.mobile-menu.open .ov{opacity:1}
.mobile-menu .panel{position:absolute;right:0;top:0;bottom:0;width:min(87vw,360px);background:#fff;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);transform:translateX(105%);transition:transform .42s cubic-bezier(.5,.05,.2,1)}
.mobile-menu.open .panel{transform:none}
.mm-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.mm-head .mm-logo,.mm-head img{height:30px;width:auto}
.mm-head .close{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:1.05rem;cursor:pointer;display:grid;place-items:center;transition:.25s}
.mm-head .close:hover{background:var(--mint-50);color:var(--teal-700);transform:rotate(90deg);border-color:var(--teal-300)}
.mm-nav{display:flex;flex-direction:column;padding:16px 14px;gap:4px;flex:1}
.mm-nav a{display:flex;align-items:center;gap:14px;padding:13px 14px;border-radius:14px;font-weight:600;font-size:1rem;color:var(--ink);opacity:0;transform:translateX(16px);transition:opacity .1s,transform .1s,background .18s}
.mm-nav a .mi{width:42px;height:42px;border-radius:13px;background:var(--mint-100);color:var(--teal-700);display:grid;place-items:center;font-size:1rem;flex:none;transition:.2s}
.mm-nav a .mm-arrow{margin-left:auto;color:var(--muted-2);font-size:.8rem;transition:.2s}
.mm-nav a:hover,.mm-nav a:active{background:var(--mint-50)}
.mm-nav a:hover .mi{background:var(--teal-600);color:#fff;transform:scale(1.05)}
.mm-nav a:hover .mm-arrow{color:var(--teal-700);transform:translateX(4px)}
.mobile-menu.open .mm-nav a{opacity:1;transform:none}
.mobile-menu.open .mm-nav a:nth-child(1){transition:opacity .45s .12s,transform .45s .12s,background .18s}
.mobile-menu.open .mm-nav a:nth-child(2){transition:opacity .45s .18s,transform .45s .18s,background .18s}
.mobile-menu.open .mm-nav a:nth-child(3){transition:opacity .45s .24s,transform .45s .24s,background .18s}
.mobile-menu.open .mm-nav a:nth-child(4){transition:opacity .45s .30s,transform .45s .30s,background .18s}
.mm-foot{padding:16px 18px 26px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.mm-foot .btn{width:100%;justify-content:center}
@media(prefers-reduced-motion:reduce){.mobile-menu .panel,.mm-nav a,.mobile-menu .ov{transition-duration:.01s}}

.mobile-menu .panel{animation:none}
/* mobile menu — reliable display-toggle model (override) */
.mobile-menu{display:none;visibility:visible;pointer-events:auto;background:transparent;backdrop-filter:none;transition:none}
.mobile-menu.show{display:block}