/* Yiaoya — "wow" premium longevity clinic theme
   Playfair Display + Noto Serif Thai display, brand greens, editorial motion */
:root{
  --green:#6D8B74; --green-d:#3A5245; --forest:#2A352E; --wood:#C8A86B; --wood-d:#A6864E;
  --sage:#B3C7B0; --cream:#F6F2EA; --paper:#FBF9F4; --ink:#26302A; --mut:#6E756C;
  --max:1240px; --ease:cubic-bezier(.19,1,.22,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:'Noto Sans Thai',system-ui,sans-serif;
  line-height:1.75;-webkit-font-smoothing:antialiased;font-weight:300;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 32px}
.serif{font-family:'Playfair Display',serif}
.serif-th{font-family:'Noto Serif Thai','Playfair Display',serif}
.kick{font-size:12px;letter-spacing:.34em;text-transform:uppercase;color:var(--wood-d);font-weight:500}

/* nav */
nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:all .5s var(--ease);padding:22px 0}
nav.solid{background:rgba(251,249,244,.92);backdrop-filter:blur(14px);padding:14px 0;box-shadow:0 1px 0 rgba(0,0,0,.05)}
nav .wrap{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:11px;font-family:'Playfair Display',serif;font-size:23px;letter-spacing:.04em;color:#fff;transition:color .5s}
.logo img{height:36px;filter:brightness(0) invert(1);transition:filter .5s}
nav.solid .logo{color:var(--green-d)}
nav.solid .logo img{filter:none}
.nmenu{display:flex;gap:30px;align-items:center}
.nmenu a{font-size:13.5px;letter-spacing:.02em;color:rgba(255,255,255,.9);font-weight:400;transition:opacity .3s}
nav.solid .nmenu a{color:var(--ink)}
.nmenu a:hover{opacity:.6}
.nbtn{border:1px solid rgba(255,255,255,.55);color:#fff;padding:11px 24px;border-radius:40px;font-size:13px;font-weight:400;transition:all .4s var(--ease)}
.nbtn:hover{background:#fff;color:var(--green-d)}
nav.solid .nbtn{border-color:var(--green);color:var(--green-d)}
nav.solid .nbtn:hover{background:var(--green);color:#fff}
.burger{display:none;background:none;border:none;color:#fff;font-size:28px;cursor:pointer}
nav.solid .burger{color:var(--green-d)}

/* hero */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:flex-end;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center 30%;transform:scale(1.08);transition:transform 8s var(--ease)}
.hero.go .hero-bg{transform:scale(1)}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(30,40,33,.45) 0%,rgba(30,40,33,.12) 35%,rgba(30,40,33,.6) 100%)}
.hero-in{position:relative;z-index:2;width:100%;padding-bottom:74px;color:#fff}
.hero .kick{color:var(--wood);opacity:0;transform:translateY(20px);animation:rise 1s var(--ease) .3s forwards}
.hero h1{font-family:'Playfair Display',serif;font-weight:400;font-size:clamp(54px,9vw,118px);line-height:.98;letter-spacing:-.01em;margin:18px 0 0;
  opacity:0;transform:translateY(28px);animation:rise 1.1s var(--ease) .45s forwards}
.hero .th{font-family:'Noto Serif Thai',serif;display:block;font-size:clamp(22px,3vw,34px);font-weight:400;margin-top:18px;color:rgba(255,255,255,.92);
  opacity:0;transform:translateY(22px);animation:rise 1.1s var(--ease) .65s forwards}
.hero .lead{max-width:440px;font-size:16px;font-weight:300;color:rgba(255,255,255,.85);margin-top:22px;
  opacity:0;animation:rise 1.1s var(--ease) .85s forwards}
.hero-cta{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap;opacity:0;animation:rise 1.1s var(--ease) 1s forwards}
.scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);font-size:11px;letter-spacing:.2em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:8px;animation:rise 1s var(--ease) 1.3s both}
.scroll-cue i{animation:bob 2s ease-in-out infinite}
@keyframes rise{to{opacity:1;transform:none}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(7px)}}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:400;padding:15px 30px;border-radius:40px;cursor:pointer;transition:all .4s var(--ease);border:1px solid transparent}
.btn-fill{background:var(--wood);color:#33270f}
.btn-fill:hover{background:#fff;color:var(--green-d);transform:translateY(-2px)}
.btn-out{border-color:rgba(255,255,255,.5);color:#fff}
.btn-out:hover{background:rgba(255,255,255,.12)}
.btn-green{background:var(--green-d);color:#fff}
.btn-green:hover{background:var(--green);transform:translateY(-2px)}

/* reveal */
.rv{opacity:0;transform:translateY(40px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.12s}.rv.d2{transition-delay:.24s}.rv.d3{transition-delay:.36s}

/* sections */
.sec{padding:120px 0}
.sec-tag{text-align:center;margin-bottom:60px}
.sec-tag h2{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:clamp(32px,4.5vw,52px);color:var(--green-d);margin-top:14px;line-height:1.12}
.sec-tag p{color:var(--mut);font-size:15px;margin-top:14px;max-width:560px;margin-left:auto;margin-right:auto}

/* intro editorial */
.intro{background:var(--cream);text-align:center}
.intro .big{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:clamp(28px,4.2vw,50px);line-height:1.35;color:var(--green-d);max-width:920px;margin:0 auto}
.intro .big em{font-family:'Playfair Display',serif;font-style:italic;color:var(--wood-d)}
.intro .sig{margin-top:32px;color:var(--mut);font-size:14px;letter-spacing:.04em}

/* stats */
.stats{background:var(--forest);color:#fff}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat .n{font-family:'Playfair Display',serif;font-size:clamp(44px,5vw,64px);font-weight:400;color:var(--wood);line-height:1}
.stat .l{font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.7);margin-top:12px}
.stat-grid .stat{position:relative}
.stat-grid .stat:not(:last-child):after{content:'';position:absolute;right:-15px;top:18%;height:64%;width:1px;background:rgba(255,255,255,.14)}

/* services editorial */
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.svc-card{position:relative;border-radius:20px;overflow:hidden;min-height:300px;display:flex;align-items:flex-end;background:var(--green-d);cursor:pointer;isolation:isolate}
.svc-card .img{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform 1.1s var(--ease);z-index:-2}
.svc-card:hover .img{transform:scale(1.07)}
.svc-card:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(30,40,33,0) 30%,rgba(30,40,33,.85) 100%);z-index:-1}
.svc-card.solid{background:linear-gradient(150deg,var(--green) 0%,var(--green-d) 100%)}
.svc-card .c{padding:30px;color:#fff;width:100%}
.svc-card .ic{width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;backdrop-filter:blur(4px)}
.svc-card h3{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:24px}
.svc-card p{font-size:13.5px;font-weight:300;color:rgba(255,255,255,.82);margin:8px 0 12px;max-width:320px}
.svc-card .price{font-size:12.5px;letter-spacing:.05em;color:var(--wood)}

/* feature split */
.feat{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:0;min-height:520px}
.feat .photo{height:100%;min-height:420px;background-size:cover;background-position:center}
.feat .txt{padding:80px 8% }
.feat.alt .txt{background:var(--cream)}
.feat h2{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:clamp(28px,3.5vw,42px);color:var(--green-d);margin:16px 0 18px;line-height:1.2}
.feat p{color:var(--mut);font-size:15px;margin-bottom:14px}
.feat .pts{list-style:none;margin-top:18px}
.feat .pts li{padding:10px 0 10px 28px;position:relative;font-size:15px;border-top:1px solid rgba(0,0,0,.07)}
.feat .pts li:before{content:'';position:absolute;left:0;top:18px;width:14px;height:1px;background:var(--wood-d)}

/* quote */
.quote{background:var(--green-d);color:#fff;text-align:center}
.quote .q{font-family:'Playfair Display',serif;font-style:italic;font-weight:400;font-size:clamp(26px,3.6vw,42px);line-height:1.4;max-width:880px;margin:0 auto}
.quote .qa{margin-top:26px;font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--wood)}

/* cta */
.cta{position:relative;text-align:center;padding:130px 0;overflow:hidden}
.cta .img{position:absolute;inset:0;background-size:cover;background-position:center 40%;z-index:-2}
.cta:after{content:'';position:absolute;inset:0;background:rgba(30,40,33,.72);z-index:-1}
.cta{color:#fff}
.cta h2{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:clamp(30px,4.5vw,52px)}
.cta p{color:rgba(255,255,255,.85);margin:14px 0 30px;font-weight:300}
.cta .row{display:inline-flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn-line{background:#06C755;color:#fff}.btn-line:hover{transform:translateY(-2px)}

/* footer */
footer{background:var(--forest);color:rgba(255,255,255,.7);padding:72px 0 28px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.fbrand{font-family:'Playfair Display',serif;font-size:24px;color:#fff;letter-spacing:.04em}
footer h4{color:#fff;font-weight:400;font-size:14px;letter-spacing:.06em;margin-bottom:16px}
footer .r{font-size:13.5px;margin:9px 0;display:flex;align-items:center;gap:9px}
footer a:hover{color:var(--wood)}
.gold{color:var(--wood)}
.copo{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;font-size:11.5px;color:rgba(255,255,255,.45);text-align:center}

@media (max-width:900px){
  .nmenu{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--paper);padding:8px 0;box-shadow:0 10px 30px rgba(0,0,0,.1)}
  .nmenu.open{display:flex}.nmenu a{color:var(--ink);padding:13px 32px;width:100%}.nmenu .nbtn{margin:8px 32px;text-align:center}
  .burger{display:block}
  .stat-grid{grid-template-columns:1fr 1fr;gap:40px 20px}.stat-grid .stat:after{display:none}
  .svc{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr}.feat .photo{min-height:300px;order:-1}.feat .txt{padding:56px 32px}
  .sec{padding:80px 0}
}
@media (max-width:520px){
  .wrap{padding:0 22px}
  .stat-grid{grid-template-columns:1fr;gap:30px}
  .sec{padding:64px 0}
  .feat .txt{padding:44px 22px}
  .hero-in{padding-bottom:54px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}.hero .kick,.hero h1,.hero .th,.hero .lead,.hero-cta{opacity:1;transform:none}}

/* ── legal + form pages (privacy.html, contact.html) on the wow theme ── */
.page{padding:128px 0 90px;background:var(--paper)}
.page-head{text-align:center;margin-bottom:8px}
.page-head .kick{display:block;margin-bottom:14px}
.legal{max-width:820px;margin:0 auto;padding:0 32px}
.legal h1{font-family:'Noto Serif Thai',serif;font-weight:400;font-size:clamp(34px,4.5vw,50px);color:var(--green-d);margin-bottom:8px;text-align:center}
.legal .updated{font-size:13px;color:var(--wood-d);margin-bottom:40px;text-align:center;letter-spacing:.02em}
.legal h2{font-family:'Noto Serif Thai',serif;font-weight:500;font-size:22px;color:var(--green-d);margin:36px 0 12px}
.legal h3{font-weight:500;font-size:17px;color:var(--ink);margin:20px 0 8px}
.legal p,.legal li{font-size:15px;line-height:1.95;color:var(--ink);font-weight:300}
.legal a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
.legal ul{margin:10px 0 10px 22px}.legal li{margin:6px 0}
.legal .note{background:rgba(109,139,116,.08);border-radius:16px;padding:18px 22px;font-size:14px;margin:26px 0}
.legal hr{border:none;border-top:1px solid var(--grey);margin:52px 0}
.form-wrap{max-width:1080px;margin:0 auto;padding:0 32px;display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:start}
.card-soft{background:#fff;border:1px solid var(--grey);border-radius:20px;box-shadow:0 2px 30px rgba(0,0,0,.05);padding:34px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:500;margin-bottom:7px;color:var(--green-d)}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--grey);border-radius:13px;font-family:inherit;font-size:14px;font-weight:300;background:var(--paper);transition:border-color .3s,background .3s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green);background:#fff;box-shadow:0 0 0 3px rgba(109,139,116,.12)}
.consent{display:flex;gap:11px;align-items:flex-start;font-size:13px;color:var(--mut);margin:8px 0 22px}
.consent input{margin-top:4px;width:18px;height:18px;flex-shrink:0;accent-color:var(--green)}
.consent a{color:var(--green);text-decoration:underline}
.info-row{display:flex;align-items:center;gap:11px;font-size:14.5px;margin:13px 0}
.info-row i{color:var(--green);font-size:19px;width:22px;text-align:center}
.map-soft{margin-top:18px;border-radius:18px;overflow:hidden;min-height:230px;background:linear-gradient(135deg,rgba(109,139,116,.12),rgba(203,174,130,.12));display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:var(--green);border:1.5px dashed rgba(109,139,116,.3)}
.map-soft i{font-size:28px}
@media (max-width:880px){.form-wrap{grid-template-columns:1fr;gap:24px}.page{padding:104px 0 64px}}