/* ============================================================
   THAI BEST DEAL — Stylesheet
   Palette: Black / White / Red only (brand-locked)
   Display: Impact | Body: Calibri
   ============================================================ */

:root{
  --black: #0a0a0a;
  --charcoal: #1a1a1a;
  --grey-text: #4a4a4a;
  --grey-light: #9b9b9b;   /* visited links */
  --grey-lighter: #e9e9e9; /* hairlines / card fill */
  --white: #ffffff;
  --red: #d81c24;
  --red-deep: #a3151b;
  --shadow: 0 10px 30px rgba(0,0,0,0.12);
  --shadow-soft: 0 4px 14px rgba(0,0,0,0.08);
  --radius: 14px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--white);
  color:var(--black);
  font-family:'Calibri','Segoe UI',Tahoma,Geneva,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:var(--red);transition:color .25s var(--ease);}
a:visited{color:var(--grey-light);}
a:hover{color:var(--black);}
ul{list-style:none;margin:0;padding:0;}

h1,h2,h3,h4{
  font-family:'Impact','Anton','Arial Narrow Bold',sans-serif;
  font-weight:400;
  letter-spacing:.03em;
  margin:0 0 .4em;
  color:var(--black);
}
.eyebrow{
  display:inline-block;
  font-family:'Calibri',sans-serif;
  font-weight:700;
  letter-spacing:.22em;
  text-transform:uppercase;
  font-size:.72rem;
  color:var(--red);
  margin-bottom:.6em;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
section{padding:90px 0;}
.text-center{text-align:center;}

/* ---------- Section header (red bg / white text) ---------- */
.head-red{
  background:var(--red);
  color:var(--white);
  padding:46px 0;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  margin-bottom:60px;
  text-align:center;
}
.head-red h2{color:var(--white);font-size:2.4rem;}
.head-red p{color:#ffe3e3;max-width:640px;margin:8px auto 0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;
  background:var(--red);
  color:var(--white);
  font-family:'Calibri',sans-serif;
  font-weight:700;
  letter-spacing:.03em;
  padding:14px 34px;
  border:none;
  border-radius:50px;
  box-shadow:var(--shadow-soft);
  cursor:pointer;
  transition:background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn:visited{color:var(--white);}
.btn:hover{background:var(--black);color:var(--white);transform:translateY(-3px);box-shadow:var(--shadow);}
.btn-outline{
  background:transparent;
  border:2px solid var(--red);
  color:var(--red);
}
.btn-outline:hover{background:var(--black);border-color:var(--black);color:var(--white);}
.btn-lg{padding:18px 46px;font-size:1.05rem;}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(6px);
  box-shadow:0 2px 18px rgba(0,0,0,.08);
  transition:transform .35s var(--ease), box-shadow .3s var(--ease);
}
.navbar.nav-hide{transform:translateY(-100%);}
.nav-inner{
  max-width:1300px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  height:78px;
}
.nav-logo{display:flex;align-items:center;gap:10px;}
.nav-logo img{height:54px;width:auto;}
.nav-logo span{
  font-family:'Impact',sans-serif;font-size:1.15rem;letter-spacing:.02em;color:var(--black);
  display:none;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links > li{position:relative;}
.nav-links a{
  display:block;color:var(--black);font-weight:600;font-size:.96rem;
  padding:12px 16px;border-radius:8px;transition:color .2s, background .2s;
}
.nav-links > li > a::after{content:"";}
.nav-links a:visited{color:var(--black);}
.nav-links a:hover, .nav-links a.active{color:var(--red);background:var(--grey-lighter);}

.has-dropdown > a{display:flex;align-items:center;gap:6px;}
.caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-4px;transition:transform .25s var(--ease);}
.has-dropdown:hover .caret{transform:rotate(225deg);margin-top:4px;}
.dropdown{
  position:absolute;top:100%;left:0;background:var(--white);
  min-width:230px;border-radius:12px;box-shadow:var(--shadow);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.has-dropdown:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown li a{padding:12px 14px;border-radius:8px;font-size:.92rem;}

.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:none;background:transparent;cursor:pointer;z-index:1100;
}
.hamburger span{display:block;height:3px;width:100%;background:var(--black);border-radius:3px;transition:transform .3s var(--ease), opacity .3s var(--ease);}

/* Mobile slide-in menu */
.mobile-menu{
  position:fixed;top:0;right:0;height:100vh;width:min(78vw,340px);
  background:var(--white);z-index:1050;
  box-shadow:-8px 0 30px rgba(0,0,0,.25);
  transform:translateX(100%);
  transition:transform .4s var(--ease);
  padding:100px 30px 30px;
  overflow-y:auto;
}
.mobile-menu.open{transform:translateX(0);}
.mobile-close{
  position:absolute;top:22px;right:22px;width:40px;height:40px;
  border:none;background:var(--grey-lighter);border-radius:50%;cursor:pointer;
}
.mobile-close::before,.mobile-close::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2.5px;background:var(--black);
}
.mobile-close::before{transform:translate(-50%,-50%) rotate(45deg);}
.mobile-close::after{transform:translate(-50%,-50%) rotate(-45deg);}
.mobile-menu ul li a{
  display:block;color:var(--black);font-size:1.15rem;font-weight:700;
  padding:16px 4px;border-bottom:1px solid var(--grey-lighter);
}
.mobile-submenu{padding-left:14px;}
.mobile-submenu li a{font-size:1rem;font-weight:500;color:var(--grey-text);padding:12px 4px;}
.menu-overlay{
  position:fixed;inset:0;background:rgba(10,10,10,.5);z-index:1040;
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease), visibility .35s;
}
.menu-overlay.show{opacity:1;visibility:visible;}

/* ============================================================
   BANNER / HERO SLIDER
   ============================================================ */
.banner{
  position:relative;width:100%;height:92vh;min-height:520px;
  margin-top:0;overflow:hidden;background:var(--black);
}
.banner-track{position:relative;height:100%;}
.banner-slide{
  position:absolute;inset:0;opacity:0;transition:opacity 1s var(--ease);
}
.banner-slide.active{opacity:1;}
.banner-slide img{width:100%;height:100%;object-fit:cover;}
.banner-slide.logo-slide{
  display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at center, #1a1a1a 0%, #000 75%);
}
.banner-slide.logo-slide img{
  width:auto;max-width:60%;max-height:55%;height:auto;object-fit:contain;
  filter:drop-shadow(0 10px 40px rgba(216,28,36,.35));
}
.banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(0deg, rgba(0,0,0,.65) 0%, rgba(0,0,0,.15) 45%, rgba(0,0,0,.35) 100%);
}
.banner-slide.logo-slide .banner-overlay{background:none;}
.banner-caption{
  position:absolute;left:0;right:0;bottom:80px;text-align:center;color:var(--white);
  padding:0 24px;opacity:0;transform:translateY(20px);transition:opacity .8s var(--ease) .3s, transform .8s var(--ease) .3s;
}
.banner-slide.active .banner-caption{opacity:1;transform:translateY(0);}
.banner-caption .eyebrow{color:var(--red);}
.banner-caption h1,.banner-caption h2{color:var(--white);font-size:clamp(1.8rem,5vw,3.4rem);text-shadow:0 4px 20px rgba(0,0,0,.5);}
.banner-caption p{max-width:560px;margin:0 auto;color:#f1f1f1;}

.banner-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:50px;height:50px;border-radius:50%;border:none;
  background:rgba(255,255,255,.15);backdrop-filter:blur(4px);
  color:var(--white);font-size:1.4rem;cursor:pointer;z-index:5;
  display:flex;align-items:center;justify-content:center;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.banner-arrow:hover{background:var(--red);}
.banner-prev{left:22px;}
.banner-next{right:22px;}
.banner-dots{
  position:absolute;bottom:26px;left:0;right:0;display:flex;justify-content:center;gap:9px;z-index:5;
}
.banner-dots button{
  width:11px;height:11px;border-radius:50%;border:2px solid var(--white);
  background:transparent;cursor:pointer;padding:0;transition:background .25s var(--ease), transform .25s var(--ease);
}
.banner-dots button.active{background:var(--red);border-color:var(--red);transform:scale(1.2);}

/* Small page banner (sub-pages, shorter) */
.banner.banner-sm{height:62vh;min-height:400px;}

/* ============================================================
   THAI PRODUCTS (2-col)
   ============================================================ */
.products-split{
  display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center;
}
.product-slider{
  position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  aspect-ratio:4/3.1;background:var(--grey-lighter);
}
.product-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s var(--ease);}
.product-slide.active{opacity:1;}
.product-slide img{width:100%;height:100%;object-fit:cover;}
.product-slide .tag{
  position:absolute;left:16px;bottom:16px;background:var(--red);color:var(--white);
  padding:8px 18px;border-radius:50px;font-weight:700;font-size:.85rem;box-shadow:var(--shadow-soft);
}
.product-nav{position:absolute;bottom:16px;right:16px;display:flex;gap:10px;z-index:5;}
.product-nav button{
  width:38px;height:38px;border-radius:50%;border:none;background:rgba(255,255,255,.85);
  cursor:pointer;font-size:1.05rem;box-shadow:var(--shadow-soft);transition:background .25s;
}
.product-nav button:hover{background:var(--red);color:var(--white);}
.products-text h2{font-size:2.3rem;}
.products-text p{color:var(--grey-text);margin-bottom:26px;}

/* ============================================================
   SERVICES (triple col)
   ============================================================ */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.service-card{
  background:var(--white);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-soft);transition:transform .35s var(--ease), box-shadow .35s var(--ease);
  display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);}
.service-card .img-wrap{height:210px;overflow:hidden;}
.service-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.service-card:hover .img-wrap img{transform:scale(1.08);}
.service-card .card-body{padding:26px 26px 30px;flex:1;display:flex;flex-direction:column;}
.service-card h3{font-size:1.5rem;margin-bottom:.3em;}
.service-card p{color:var(--grey-text);flex:1;margin-bottom:20px;}

.callus-wrap{text-align:center;margin-top:64px;}

/* ============================================================
   GALLERY (collage)
   ============================================================ */
.gallery-grid{
  display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:170px;gap:14px;
}
.gallery-item{
  position:relative;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-soft);cursor:pointer;
}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.gallery-item:hover img{transform:scale(1.1);}
.gallery-item .glabel{
  position:absolute;left:0;right:0;bottom:0;padding:10px 12px 8px;
  background:linear-gradient(0deg, rgba(0,0,0,.75), transparent);
  color:var(--white);font-size:.8rem;font-weight:700;letter-spacing:.03em;
  opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.gallery-item:hover .glabel{opacity:1;transform:translateY(0);}
.gi-big{grid-column:span 2;grid-row:span 2;}
.gi-tall{grid-row:span 2;}
.gi-wide{grid-column:span 2;}

/* ============================================================
   ABOUT (no header, eye-catching)
   ============================================================ */
.about-strip{
  background:var(--black);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:64px;display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:center;
  color:var(--white);position:relative;overflow:hidden;
}
.about-strip::before{
  content:"";position:absolute;width:340px;height:340px;background:var(--red);
  border-radius:50%;filter:blur(90px);opacity:.35;top:-120px;right:-100px;
}
.about-mark{
  font-family:'Impact',sans-serif;font-size:6.5rem;line-height:.85;color:var(--red);
  letter-spacing:.01em;position:relative;z-index:1;
}
.about-mark small{display:block;font-family:'Calibri',sans-serif;font-size:1rem;color:var(--white);font-weight:700;letter-spacing:.18em;margin-top:14px;}
.about-copy{position:relative;z-index:1;}
.about-copy p{color:#e7e7e7;font-size:1.08rem;}
.about-copy strong{color:var(--red);}

/* ============================================================
   CONTACT (triple col)
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.contact-card{
  background:var(--white);border:1px solid var(--grey-lighter);border-radius:var(--radius);
  padding:44px 28px;text-align:center;box-shadow:var(--shadow-soft);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.contact-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.contact-icon{
  width:72px;height:72px;border-radius:50%;background:var(--red);color:var(--white);
  display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.7rem;
}
.contact-card h3{font-size:1.35rem;}
.contact-card p{color:var(--grey-text);margin-bottom:22px;min-height:48px;}

/* ============================================================
   FOOTER
   ============================================================ */
footer{
  background:var(--black);color:var(--white);text-align:center;padding:36px 20px;
}
footer p{margin:4px 0;color:#cfcfcf;font-size:.9rem;}
footer strong{color:var(--white);}
footer a{color:var(--red);}

/* ============================================================
   MISC PAGE SECTIONS
   ============================================================ */
.page-intro{max-width:760px;margin:0 auto 50px;text-align:center;}
.two-col-info{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;margin-bottom:80px;}
.two-col-info img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%;height:420px;object-fit:cover;}
.two-col-info.reverse{direction:rtl;}
.two-col-info.reverse > *{direction:ltr;}
.feature-list{margin:22px 0;padding:0;}
.feature-list li{padding:10px 0 10px 30px;position:relative;color:var(--grey-text);border-bottom:1px dashed var(--grey-lighter);}
.feature-list li::before{content:"";position:absolute;left:0;top:18px;width:12px;height:12px;background:var(--red);border-radius:3px;}

.alt-bg{background:var(--grey-lighter);border-radius:var(--radius);}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .products-split{grid-template-columns:1fr;}
  .about-strip{grid-template-columns:1fr;text-align:center;padding:46px 30px;}
  .about-mark{font-size:5rem;}
  .gallery-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .services-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .two-col-info{grid-template-columns:1fr;}
  .two-col-info img{height:280px;}
  section{padding:60px 0;}
  .head-red h2{font-size:1.9rem;}
  .about-strip{padding:36px 22px;}
}
@media (max-width:640px){
  .gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:140px;}
  .gi-big{grid-column:span 2;grid-row:span 1;}
  .banner{height:82vh;}
  .banner-caption{bottom:56px;}
  .nav-logo img{height:44px;}
}
/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease), transform .8s var(--ease);}
.reveal.in-view{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
}