/* =========================================================
   Flow Massage & Spa — stylesheet
   Palette: gold + warm ivory + espresso  (matches brand logo)
   Follows _playbook STANDARDS.md + DESIGN-LANGUAGE.md
   ========================================================= */
:root{
  --cream:#faf6ef; --cream-2:#f1e8d9; --white:#fffdf9;
  --espresso:#372c21; --espresso-2:#2a2018;
  --gold:#c2a15a; --gold-deep:#9a7b39; --gold-text:#856a30; --gold-soft:#e7d7b0;
  --gold-line:rgba(154,123,57,.28);
  --ink:#463d31; --ink-soft:#7c7263; --line:rgba(55,44,33,.12);
  --shadow:0 14px 44px rgba(55,44,33,.14); --shadow-sm:0 6px 20px rgba(55,44,33,.09);
  --radius:22px; --maxw:1160px;
  --s1:8px; --s2:16px; --s3:24px; --s4:40px; --s5:64px; --s6:96px;
  --fs-h1:clamp(31px,3.8vw,44px); --fs-h2:clamp(25px,2.6vw,33px); --fs-h3:clamp(20px,1.9vw,24px);
  --fs-lead:18px; --fs-body:16px; --fs-label:13px;
  --font-head:'Cormorant Garamond','Noto Serif Thai',serif;
  --font-body:'Prompt','IBM Plex Sans Thai',sans-serif;
  --font-num:'Montserrat','Prompt',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--font-body);color:var(--ink);background:var(--cream);line-height:1.7;font-weight:300;font-size:var(--fs-body);overflow-x:hidden}
h1,h2,h3,.serif{font-family:var(--font-head);font-weight:500;line-height:1.15}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--gold-deep);outline-offset:3px;border-radius:4px}
section{padding:var(--s6) 0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:100px;padding:12px 22px;font-size:14px;font-weight:400;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s;border:0;font-family:var(--font-body);white-space:nowrap;min-height:44px}
.btn svg{width:16px;height:16px;flex-shrink:0}
.btn-primary{background:var(--espresso);color:var(--cream);box-shadow:0 8px 22px rgba(55,44,33,.28)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 28px rgba(55,44,33,.4);background:var(--espresso-2)}
.btn-ghost{background:transparent;color:var(--espresso);border:1px solid var(--gold)}
.btn-ghost:hover{background:var(--gold);color:#fff}
.btn-fb{background:#1877f2;color:#fff}
.btn-fb:hover{transform:translateY(-1px)}

/* header — transparent over hero, solid on scroll */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:transparent;border-bottom:1px solid transparent;transition:background .35s,border-color .35s,box-shadow .35s}
header.scrolled{background:rgba(250,246,239,.92);backdrop-filter:blur(12px);border-bottom-color:var(--gold-line);box-shadow:0 4px 20px rgba(55,44,33,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:80px}
.brand{display:flex;align-items:center;gap:11px}
.brand .wm{display:flex;flex-direction:column;line-height:1}
.brand b{font-family:var(--font-head);font-size:29px;font-weight:600;letter-spacing:4px;color:#fff;transition:color .35s;text-shadow:0 1px 10px rgba(0,0,0,.22)}
.brand .sub{font-size:10.5px;letter-spacing:4px;text-transform:uppercase;color:rgba(255,255,255,.85);margin-top:4px;white-space:nowrap;transition:color .35s}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:rgba(255,255,255,.92);transition:color .2s;text-shadow:0 1px 10px rgba(0,0,0,.25)}
.nav-links a:hover{color:#fff}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-toggle{display:flex;border:1px solid rgba(255,255,255,.5);border-radius:30px;overflow:hidden;font-size:12.5px;transition:border-color .35s}
.lang-toggle a{padding:6px 12px;color:rgba(255,255,255,.9);transition:.2s;font-weight:400}
.lang-toggle a.active{background:#fff;color:var(--espresso)}
.nav-cta .btn{padding:9px 18px;min-height:40px;font-size:13.5px}
.nav-cta .btn-primary{background:#fff;color:var(--espresso)}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:10px}
.burger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
header.scrolled .brand b{color:var(--gold-deep);text-shadow:none}
header.scrolled .brand .sub{color:var(--ink-soft)}
header.scrolled .nav-links a{color:var(--ink-soft);text-shadow:none}
header.scrolled .nav-links a:hover{color:var(--gold-deep)}
header.scrolled .lang-toggle{border-color:var(--gold-line)}
header.scrolled .lang-toggle a{color:var(--ink-soft)}
header.scrolled .lang-toggle a.active{background:var(--espresso);color:var(--cream)}
header.scrolled .nav-cta .btn-primary{background:var(--espresso);color:var(--cream)}
header.scrolled .burger span{background:var(--espresso)}
.mobile-menu{display:none;flex-direction:column;padding:14px 26px 22px;background:var(--cream);border-bottom:1px solid var(--gold-line)}
.mobile-menu a{padding:12px 0;color:var(--ink);border-bottom:1px solid var(--line);min-height:44px;display:flex;align-items:center}
.mobile-menu.open{display:flex}

/* hero — cinematic full-bleed */
.hero{position:relative;min-height:70vh;display:flex;align-items:flex-end;overflow:hidden;color:#fff}
.hero-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:0;animation:kenburns 22s ease-in-out infinite alternate;transform-origin:60% 40%}
@keyframes kenburns{from{transform:scale(1.02)}to{transform:scale(1.12)}}
.hero-scrim{position:absolute;inset:0;z-index:1;background:
  linear-gradient(90deg,rgba(38,30,22,.8),rgba(38,30,22,.42) 50%,rgba(38,30,22,.1) 82%),
  linear-gradient(180deg,rgba(38,30,22,.55),rgba(38,30,22,0) 22%,rgba(38,30,22,0) 60%,rgba(38,30,22,.5))}
.hero .wrap{position:relative;z-index:2;width:100%;padding-top:112px;padding-bottom:66px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:var(--fs-label);letter-spacing:.16em;text-transform:uppercase;font-weight:500}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor;opacity:.85}
.hero .eyebrow{color:var(--gold-soft);margin-bottom:20px}
.hero h1{font-size:clamp(26px,4.6vw,52px);color:#fff;line-height:1.14;margin-bottom:16px;white-space:nowrap;text-shadow:0 2px 34px rgba(0,0,0,.3)}
.hero h1 em{font-style:italic;color:var(--gold-soft)}
.hero .lede{font-size:var(--fs-lead);color:rgba(255,255,255,.92);max-width:480px;margin-bottom:28px;line-height:1.6}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.hero .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff}
.hero-proof .pf{display:flex;align-items:baseline;gap:9px;font-size:14px}
.hero-proof .pf b{font-weight:500;color:#fff}
.hero-proof .pf span{color:rgba(255,255,255,.82)}
.stars{color:var(--gold-deep);letter-spacing:2px}
.scroll-cue{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.85);width:38px;height:38px;border:1px solid rgba(255,255,255,.4);border-radius:50%;display:grid;place-items:center;animation:bob 1.9s ease-in-out infinite}
.scroll-cue:hover{background:rgba(255,255,255,.12)}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* section head */
.sec-head{text-align:center;max-width:660px;margin:0 auto var(--s5)}
.sec-head .kick{font-size:var(--fs-label);letter-spacing:.16em;text-transform:uppercase;color:var(--gold-text);margin-bottom:14px;font-weight:500}
.sec-head h2{font-size:var(--fs-h2);color:var(--ink);margin-bottom:14px}
.sec-head p{color:var(--ink-soft);font-size:var(--fs-lead)}

/* about */
.about{background:var(--white)}
.about .grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.about-figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--gold-line);aspect-ratio:4/5;max-height:580px}
.about-figure img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s ease}
.about-figure:hover img{transform:scale(1.05)}
.about-figure::after{content:"";position:absolute;inset:14px;border:1px solid rgba(255,253,249,.55);border-radius:14px;pointer-events:none}
.about .kick{font-size:var(--fs-label);letter-spacing:.16em;text-transform:uppercase;color:var(--gold-text);font-weight:500}
.about h2{font-size:var(--fs-h2);margin:12px 0 18px}
.about p{color:var(--ink-soft);margin-bottom:16px}
.about .signature{font-family:var(--font-head);font-style:italic;font-size:23px;color:var(--gold-deep);margin-top:8px}

/* services — balanced cards */
.services{background:var(--cream)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-bottom:56px}
.svc{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:transform .25s,box-shadow .25s;position:relative;overflow:hidden;display:flex;flex-direction:column}
.svc:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.svc .ic{width:50px;height:50px;border-radius:14px;background:var(--gold-soft);display:grid;place-items:center;margin-bottom:18px;color:var(--gold-deep)}
.svc .ic svg{width:25px;height:25px}
.svc h3{font-size:21px;line-height:1.25;margin-bottom:5px;color:var(--ink)}
.svc .th-sub{font-size:13px;color:var(--gold-text);margin-bottom:12px;font-weight:400}
.svc p{font-size:13.5px;color:var(--ink-soft);margin-bottom:18px;line-height:1.6;flex:1}
.svc .price{display:flex;align-items:baseline;gap:6px;border-top:1px dashed var(--gold-line);padding-top:15px}
.svc .price .from{font-size:12px;color:var(--ink-soft)}
.svc .price .amt{font-family:var(--font-num);font-size:26px;color:var(--gold-deep);font-weight:600;letter-spacing:.2px}
.svc .price .unit{font-size:12.5px;color:var(--ink-soft)}
.svc.feature{background:linear-gradient(155deg,#fbf4e2,#f4e9cd);border:1.5px solid var(--gold)}
.svc.feature .ic{background:rgba(154,123,57,.16);color:var(--gold-deep)}
.svc .tag{position:absolute;top:20px;right:22px;font-size:10px;letter-spacing:1.5px;text-transform:uppercase;background:var(--gold);color:#fff;padding:4px 11px;border-radius:20px}

/* full price menu — 3 categories (matches printed menu) */
.menu-tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.menu-tab{font-family:var(--font-body);font-size:14px;font-weight:400;padding:11px 24px;border-radius:100px;border:1px solid var(--gold-line);background:transparent;color:var(--ink-soft);cursor:pointer;transition:background .2s,color .2s,border-color .2s;min-height:44px}
.menu-tab:hover{border-color:var(--gold);color:var(--gold-deep)}
.menu-tab.active{background:var(--espresso);color:var(--cream);border-color:var(--espresso)}
.menu-cats{max-width:820px;margin:0 auto}
.menu-cat{display:none}
.menu-cat.active{display:block;animation:fadeIn .35s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.menu-cat .cat-sub{font-size:12.5px;color:var(--ink-soft);margin:-4px 0 16px;text-align:center;letter-spacing:.3px}
.pi-price .pi-old{font-family:var(--font-body);font-size:12px;color:var(--ink-soft);text-decoration:line-through;font-weight:300;margin-right:6px}
.pi-price .pi-dur{font-family:var(--font-body);font-size:11px;color:var(--ink-soft);font-weight:300;display:block;letter-spacing:.3px}

/* legacy 2-col groups */
.menu-groups{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.menu-group h3{font-size:var(--fs-h3);color:var(--ink);display:flex;align-items:center;gap:12px;margin-bottom:8px}
.menu-group h3::after{content:"";flex:1;height:1px;background:var(--gold-line)}
.menu-group .grp-note{font-size:12.5px;color:var(--ink-soft);margin-bottom:18px}
.price-list{list-style:none}
.price-item{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);align-items:baseline}
.price-item:last-child{border-bottom:0}
.pi-name{font-weight:400;color:var(--ink);font-size:15px}
.pi-name .en-sub,.pi-name .th-sub2{display:block;font-size:12px;color:var(--ink-soft);font-weight:300;margin-top:2px}
.pi-price{font-family:var(--font-num);font-size:16px;color:var(--gold-text);font-weight:500;white-space:nowrap;text-align:right;letter-spacing:.2px}
.pi-price .u{font-family:var(--font-body);font-size:11px;color:var(--ink-soft);display:block;font-weight:300;letter-spacing:.5px}
.price-note{text-align:center;color:var(--ink-soft);font-size:13px;margin-top:34px}

/* why — feature points (warin-spa style icons) */
.why{background:var(--white)}
.feat-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:34px 22px}
.feat{text-align:center;flex:0 1 188px;max-width:200px}
.feat .fic{width:76px;height:76px;border-radius:50%;margin:0 auto 20px;display:grid;place-items:center;background:var(--cream);color:var(--gold-deep);border:1.25px solid var(--gold)}
.feat .fic svg{width:42px;height:42px}
.feat h3{font-size:19px;margin-bottom:10px}
.feat h3::after{content:"";display:block;width:28px;height:2px;background:var(--gold);margin:9px auto 0;border-radius:2px}
.feat p{font-size:13.5px;color:var(--ink-soft);line-height:1.6}

/* gallery — three large hover-zoom tiles */
.gallery{background:var(--cream)}
.gal2{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gal-tile{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);height:460px;margin:0;border:1px solid var(--gold-line)}
.gal-tile img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s ease}
.gal-tile:hover img{transform:scale(1.06)}
.gal-tile figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 26px 22px;color:#fff;font-family:var(--font-head);font-size:23px;letter-spacing:.5px;background:linear-gradient(0deg,rgba(38,30,22,.78),rgba(38,30,22,0))}

/* reviews — light warm section */
.reviews{background:#f4ecdc;text-align:center}
.reviews .kick{color:var(--gold-text)}
.reviews h2{color:var(--ink)}
.rev-top{display:flex;flex-direction:column;align-items:center;gap:18px;margin-bottom:8px}
.rev-summary{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--white);border:1px solid var(--gold-line);padding:16px 30px;border-radius:60px;box-shadow:var(--shadow-sm)}
.rev-summary .big{font-family:var(--font-num);font-size:38px;line-height:1;color:var(--gold-deep);font-weight:600}
.rev-summary .rs-meta{display:flex;flex-direction:column;align-items:flex-start;line-height:1.3}
.rev-summary .rs-meta .stars{color:var(--gold);font-size:16px}
.rev-summary .rs-meta .rs-sub{font-size:12.5px;color:var(--ink-soft)}
.rev-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--gold-deep);border-bottom:1px solid var(--gold-line);padding-bottom:2px}
.rev-link:hover{color:var(--gold-text);border-bottom-color:var(--gold)}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px;text-align:left}
.rev{background:var(--white);border:1px solid var(--gold-line);border-radius:18px;padding:26px;box-shadow:var(--shadow-sm)}
.rev .stars{color:var(--gold-deep);font-size:16px;margin-bottom:12px;display:block}
.rev p{font-size:14.5px;color:var(--ink);font-style:italic;margin-bottom:14px;line-height:1.6}
.rev .who{font-size:13px;color:var(--gold-text)}

/* faq */
.faq{background:var(--white)}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--cream);border:1px solid var(--gold-line);border-radius:14px;padding:2px 22px}
.faq-item summary{cursor:pointer;list-style:none;padding:17px 0;font-size:16px;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold-deep);font-size:24px;line-height:1;flex-shrink:0}
.faq-item[open] summary::after{content:"–"}
.faq-item .fa{padding:0 2px 18px;color:var(--ink-soft);font-size:14.5px;line-height:1.7}

/* location — big map only */
.location .map-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);background:var(--cream-2)}
.location .map-wrap iframe{width:100%;height:560px;border:0;display:block}

/* cta strip */
.cta-strip{background:linear-gradient(135deg,var(--espresso),#5a4632);color:#fff;text-align:center}
.cta-strip h2{font-size:var(--fs-h1);color:#fff;margin-bottom:12px}
.cta-strip h2 em{font-style:italic;color:var(--gold-soft)}
.cta-strip p{color:rgba(255,255,255,.9);margin-bottom:28px;font-size:var(--fs-lead)}
.cta-strip .hero-cta{justify-content:center}
.cta-strip .btn-primary{background:var(--gold);color:var(--espresso);box-shadow:0 8px 22px rgba(0,0,0,.25)}
.cta-strip .btn-primary:hover{background:var(--gold-soft)}
.cta-strip .btn-ghost{border-color:rgba(231,215,176,.7);color:#fff}
.cta-strip .btn-ghost:hover{background:rgba(231,215,176,.16)}

/* footer */
footer{background:var(--espresso-2);color:#cdc4b4;padding:56px 0 30px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:36px}
footer .brand b{color:var(--gold-soft);text-shadow:none}
footer .brand .sub{color:#9a8f7c}
footer .desc{color:#a79d8b;margin-top:14px;max-width:300px;font-size:13.5px}
footer h5{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:#fff;margin-bottom:16px;font-weight:500}
footer ul{list-style:none}
footer ul li{margin-bottom:10px}
footer ul a:hover{color:var(--gold-soft)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;text-align:center;color:#8a8071;font-size:12.5px}

/* floating contact — smaller */
.fab-stack{position:fixed;bottom:20px;right:20px;z-index:120;display:flex;flex-direction:column;gap:11px}
.fab{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 20px rgba(0,0,0,.22)}
.fab svg{width:22px;height:22px}
.fab-call{background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#fff}
.fab-msg{background:linear-gradient(135deg,#00b2ff,#006aff);color:#fff}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:900px){
  .nav-links{display:none}
  .burger{display:flex}
  .nav-cta .btn{display:none}
  .hero .wrap{padding-top:118px;padding-bottom:60px}
  .about .grid{grid-template-columns:1fr;gap:34px}
  .about-figure{max-height:none;aspect-ratio:4/5;max-width:440px;margin:0 auto;width:100%}
  .svc-grid{grid-template-columns:1fr}
  .menu-groups{grid-template-columns:1fr;gap:30px}
  .gal2{grid-template-columns:1fr;gap:16px}
  .gal-tile{height:320px}
  .rev-grid{grid-template-columns:1fr}
  .location .map-wrap iframe{height:420px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  section{padding:var(--s5) 0}
}
@media(max-width:520px){
  .rev-summary{padding:14px 22px;gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}