/* ============================================================
   SRS Tour & Trade — styles
   Palette from logo: navy, red, gold on warm paper
   Display: Newsreader (serif) · UI/body: Manrope
   ============================================================ */

:root{
  --navy:#16265C;
  --navy-900:#0d183b;
  --navy-700:#213a7d;
  --red:#C8202E;
  --gold:#C29A4B;
  --gold-l:#dcbd7c;
  --paper:#f7f3ea;
  --paper-2:#fffdf8;
  --ink:#151d33;
  --muted:#5c6580;
  --line:rgba(21,29,51,.12);
  --shadow:0 24px 60px -28px rgba(13,24,59,.45);
  --radius:18px;
  --wrap:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Manrope',system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Newsreader',Georgia,serif;font-weight:600;line-height:1.08;letter-spacing:-.01em;margin:0}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.ital{font-style:italic;font-weight:500}
.ital.gold{color:var(--gold)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:'Manrope';font-weight:700;font-size:.94rem;letter-spacing:.01em;
  padding:.85em 1.5em;border-radius:100px;cursor:pointer;border:1px solid transparent;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .25s,color .25s;
  white-space:nowrap;
}
.btn .arr,.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(4px)}
.btn:hover{transform:translateY(-2px)}
.btn-sm{padding:.6em 1.15em;font-size:.85rem}
.btn-gold{background:var(--gold);color:var(--navy-900);box-shadow:0 10px 26px -12px rgba(194,154,75,.9)}
.btn-gold:hover{background:var(--gold-l)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-700)}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- eyebrow / section heads ---------- */
.eyebrow{
  font-family:'Manrope';font-weight:700;font-size:.72rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gold);margin:0 0 1rem;display:flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
.eyebrow-light{color:var(--gold-l)}
.eyebrow-light::before{background:var(--gold-l)}
.center .eyebrow{justify-content:center}
.section-head{max-width:640px;margin-bottom:clamp(2rem,5vw,3.5rem)}
.section-head.center{margin-inline:auto;text-align:center}
.section-head h2{font-size:clamp(2rem,4.6vw,3.1rem)}
.lead{margin-top:1rem;font-size:1.1rem;color:var(--muted)}
.lead-light{color:rgba(255,255,255,.72)}

/* Thai glyphs sit taller — relax line heights when TH is active */
html[lang="th"] body{line-height:1.85}
html[lang="th"] h1,html[lang="th"] h2,html[lang="th"] h3,html[lang="th"] h4{line-height:1.4}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,243,234,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:1.5rem;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;margin-right:auto;padding:.34rem 1rem;border-radius:999px;border:1px solid var(--line);background:var(--paper-2);transition:border-color .25s,box-shadow .25s}
.brand:hover{border-color:var(--gold);box-shadow:0 6px 18px -10px rgba(13,24,59,.25)}
.brand-badge{display:grid;place-items:center;filter:drop-shadow(0 6px 14px rgba(13,24,59,.25))}
.brand-logo{width:52px;height:52px;object-fit:contain}
.brand-wordmark{height:50px;width:auto;object-fit:contain;display:block;position:relative;top:3px}
.nav{display:flex;gap:1.6rem}
.nav a{font-size:.92rem;font-weight:600;color:var(--ink);position:relative;padding:.2em 0}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .28s}
.nav a:hover{color:var(--navy)}
.nav a:hover::after{transform:scaleX(1)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:var(--navy);transition:.3s}
.lang-toggle{
  font-family:'Manrope';font-weight:800;font-size:.78rem;letter-spacing:.08em;
  padding:.5em 1.05em;border-radius:100px;border:1px solid var(--line);
  background:transparent;color:var(--navy);cursor:pointer;transition:border-color .25s,color .25s,background .25s;
}
.lang-toggle:hover{border-color:var(--gold);color:var(--gold);background:rgba(194,154,75,.08)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(120% 90% at 15% 0%, rgba(36,56,126,.55) 0%, transparent 55%),
    linear-gradient(160deg, rgba(22,38,92,.82) 0%, rgba(13,24,59,.93) 100%),
    url('assets/hero.jpg') center/cover no-repeat,
    var(--navy-900);
}
.hero-routes{position:absolute;inset:0;z-index:0}
.hero-routes svg{width:100%;height:100%}
.hero-inner{position:relative;z-index:2;padding-top:clamp(3.5rem,9vw,6.5rem);padding-bottom:clamp(3rem,7vw,5rem)}
.hero-title{
  font-size:clamp(2.6rem,6.6vw,5rem);font-weight:600;max-width:14ch;margin:.4rem 0 0;
}
.hero-title .ital{color:var(--gold-l)}
.hero-sub{margin-top:1.5rem;max-width:52ch;font-size:clamp(1.02rem,1.7vw,1.22rem);color:rgba(255,255,255,.8)}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.2rem}
/* full logo showcased in the hero's right-side negative space.
   Top aligns with the h1 "Tours across" line; logo hangs down from there
   over the trade half panel below. .hero-main must be position:relative
   so top:0 resolves to hero-main's top (= the h1 top line). */
.hero-main{position:relative}
.hero-logo{position:absolute;right:0;top:0;
  width:clamp(230px,26vw,360px);z-index:-1;opacity:.97;
  filter:drop-shadow(0 24px 60px rgba(0,0,0,.5))}
@media (max-width:1000px){.hero-logo{display:none}}

/* animated route dashes */
.hero-routes path{stroke-dashoffset:0;animation:flow 26s linear infinite}
@keyframes flow{to{stroke-dashoffset:-400}}

/* hero split scenes */
.hero-split{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(255,255,255,.14)}
.hero-half{position:relative;height:clamp(150px,22vw,230px);overflow:hidden}
.hero-travel{background:linear-gradient(180deg,rgba(53,120,160,.35),transparent)}
.hero-trade{background:linear-gradient(180deg,rgba(120,60,40,.28),transparent);border-left:1px solid rgba(255,255,255,.14)}
.hero-half .scene{position:absolute;inset:0;width:100%;height:100%}
.hero-tag{
  position:absolute;left:clamp(20px,5vw,48px);top:22px;
  font-family:'Manrope';font-weight:800;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;
  color:#fff;background:rgba(13,24,59,.55);border:1px solid rgba(255,255,255,.28);
  padding:.4em 1em;border-radius:100px;backdrop-filter:blur(4px);
}

/* ---------- pillars ---------- */
.pillars{padding:clamp(4rem,8vw,7rem) 0;background:
   linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%)}
.pillar-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.2rem,3vw,2rem)}
.pillar-card{
  position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(1.8rem,3vw,2.6rem);box-shadow:0 18px 44px -34px rgba(13,24,59,.4);
  transition:transform .3s,box-shadow .3s;overflow:hidden;
}
.pillar-card::after{content:"";position:absolute;right:-70px;bottom:-70px;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(33,58,125,.10),transparent 70%);pointer-events:none}
.pillar-card--trade{background:linear-gradient(180deg,#fffdf8,#fbf6ea)}
.pillar-card--trade::after{background:radial-gradient(circle,rgba(194,154,75,.18),transparent 70%)}
.pillar-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pillar-kicker{display:flex;align-items:center;gap:.6em;font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:var(--navy)}
.pillar-kicker .dot{width:9px;height:9px;border-radius:50%;background:var(--navy)}
.pillar-kicker .dot-gold{background:var(--gold)}
.pillar-card h3{font-size:clamp(1.5rem,2.6vw,2rem);margin:.9rem 0 .6rem}
.pillar-card p{color:var(--muted)}
.ticks{list-style:none;padding:0;margin:1.3rem 0;display:grid;gap:.6rem}
.ticks li{position:relative;padding-left:1.7em;font-weight:500;font-size:.96rem}
.ticks li::before{content:"";position:absolute;left:0;top:.5em;width:11px;height:6px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg)}
.ticks-light li{color:rgba(255,255,255,.9)}
.ticks-light li::before{border-color:var(--gold-l)}
.link-arrow{font-weight:700;color:var(--navy);display:inline-flex;gap:.4em;align-items:center}
.link-arrow span{transition:transform .25s}
.link-arrow:hover span{transform:translateX(5px)}
.link-arrow:hover{color:var(--gold)}
.link-arrow-light{color:#fff}
.link-arrow-light:hover{color:var(--gold-l)}
.link-arrow-light:hover span{transform:translateX(5px)}

/* ---------- travel ---------- */
.travel{padding:clamp(4rem,8vw,7rem) 0;background:var(--paper-2)}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;padding:0;margin:1.5rem 0 0}
.chips li{font-family:'Manrope';font-weight:700;font-size:.78rem;letter-spacing:.02em;
  padding:.45em 1em;border-radius:100px;background:var(--paper);border:1px solid var(--line);color:var(--navy)}
.chips li::before{content:"✦ ";color:var(--gold)}
.pkg-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:clamp(1rem,2.5vw,1.6rem);margin-bottom:clamp(2.5rem,6vw,4rem)}
.pkg{border-radius:var(--radius);overflow:hidden;background:var(--paper);border:1px solid var(--line);
  box-shadow:0 16px 40px -34px rgba(13,24,59,.5);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}
.pkg:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pkg-art{height:176px;position:relative;overflow:hidden;background:var(--navy-900)}
.pkg-art img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.pkg:hover .pkg-art img{transform:scale(1.06)}
.scene-il{position:absolute;inset:0;width:100%;height:100%}
.art-bangkok{background:linear-gradient(180deg,#ffd98a 0%,#f0a05a 42%,#7d5aa8 100%)}
.art-islands{background:linear-gradient(180deg,#bdeefb 0%,#67c9d8 55%,#12788c 100%)}
.art-north{background:linear-gradient(180deg,#e9d7b0 0%,#b7cdd6 55%,#5b7f92 100%)}
.art-soon{background:linear-gradient(160deg,var(--navy-700),var(--navy-900));display:grid;place-items:center}
.pkg-body{padding:1.5rem;display:flex;flex-direction:column;gap:.15rem;flex:1}
.pkg-tag{font-family:'Manrope';font-weight:700;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.pkg-body h3{font-size:1.35rem;margin:.4rem 0 .5rem}
.pkg-body p{color:var(--muted);font-size:.94rem}
/* coming-soon tile */
.pkg--soon{border-style:dashed;border-color:rgba(194,154,75,.5);background:var(--paper-2)}
.pkg--soon:hover{transform:none;box-shadow:0 16px 40px -34px rgba(13,24,59,.5)}
.soon-tag{color:var(--navy);background:rgba(194,154,75,.16);padding:.35em .9em;border-radius:100px;align-self:flex-start}
.field-note{font-size:.85rem;color:rgba(255,255,255,.6);margin:-.2rem 0 .2rem}

/* ---------- inquiry blocks ---------- */
.inquiry{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(1.5rem,4vw,3.5rem);
  background:var(--navy);color:#fff;border-radius:100px;
  padding:clamp(1.8rem,4vw,3.2rem);box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.inquiry::before{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(194,154,75,.35),transparent 70%)}
.inquiry-copy{position:relative;z-index:1}
.inquiry-copy h3{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:.7rem}
.inquiry-copy p{color:rgba(255,255,255,.75)}
.inquiry-copy .ticks{margin-top:1.5rem}
.inquiry-onlight{background:linear-gradient(160deg,var(--navy),var(--navy-900))}

/* forms */
.form{position:relative;z-index:1;display:grid;gap:1rem}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem}
.form label{display:flex;flex-direction:column;gap:.4rem;font-size:.8rem;font-weight:700;letter-spacing:.04em;color:rgba(255,255,255,.75);text-transform:uppercase}
.form input,.form select,.form textarea{
  font-family:'Manrope';font-size:.98rem;font-weight:500;color:#fff;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.22);border-radius:100px;
  padding:.8em .9em;transition:border .2s,background .2s,box-shadow .2s;text-transform:none;letter-spacing:0;
}
.form input::placeholder,.form textarea::placeholder{color:rgba(255,255,255,.4)}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;border-color:var(--gold-l);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(194,154,75,.25)}
.form select option{color:var(--ink)}
.form textarea{resize:vertical}
.form .btn{justify-self:start;margin-top:.4rem}
.hp{position:absolute !important;left:-9999px !important;top:auto !important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.form-status{font-size:.9rem;font-weight:600;min-height:1.2em;margin:0}
.form-status.ok{color:var(--gold-l)}
.form-status.err{color:#ff9ba1}

/* ---------- trade ---------- */
.trade{padding:clamp(4rem,8vw,7rem) 0;color:#fff;background:
  radial-gradient(100% 80% at 100% 0, #24387e 0, transparent 55%),
  linear-gradient(180deg,var(--navy-900),var(--navy))}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1rem,2vw,1.4rem);margin-bottom:clamp(2.5rem,6vw,4rem)}
.svc{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:1.6rem;transition:transform .3s,background .3s,border .3s}
.svc:hover{transform:translateY(-6px);background:rgba(255,255,255,.09);border-color:rgba(220,189,124,.5)}
.svc-ico{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:rgba(194,154,75,.18);color:var(--gold-l);font-size:1.4rem;margin-bottom:1rem}
.svc h3{font-size:1.3rem;margin-bottom:.4rem}
.svc p{color:rgba(255,255,255,.68);font-size:.94rem}

/* ---------- about ---------- */
.about{padding:clamp(4rem,8vw,7rem) 0;background:var(--paper)}
.about-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.about-copy h2{font-size:clamp(1.9rem,4vw,2.8rem);margin:.4rem 0 1.1rem}
.about-copy p{color:var(--muted);font-size:1.08rem;margin-bottom:1.8rem}
.stats{display:grid;gap:1rem}
.stat{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:1.3rem 1.5rem;display:flex;align-items:center;gap:1rem}
.stat::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--gold);flex:0 0 auto}
.stat strong{font-family:'Newsreader';font-size:2rem;font-weight:600;color:var(--navy);line-height:1;align-self:baseline}
.stat span{color:var(--muted);font-size:.96rem}

/* ---------- footer ---------- */
.footer{background:var(--navy-900);color:#fff;padding:clamp(3rem,6vw,4.5rem) 0 1.8rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-word{display:flex;flex-direction:column;line-height:1}
.footer-word strong{font-family:'Newsreader';font-weight:700;font-size:1.32rem;letter-spacing:.04em;color:#fff}
.footer-word em{font-style:normal;font-size:.66rem;letter-spacing:.28em;text-transform:uppercase;color:var(--gold-l);font-weight:700;margin-top:2px}
.footer-brand p{color:rgba(255,255,255,.66);margin-top:1rem;font-size:.96rem}
.footer-col h4{font-family:'Manrope';font-weight:800;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-l);margin-bottom:1rem}
.footer-col a,.footer-addr{display:block;color:rgba(255,255,255,.75);font-size:.95rem;margin-bottom:.6rem;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-col .footer-wa{color:var(--gold-l);font-weight:700}
.footer-col .footer-wa:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:1.6rem;font-size:.85rem;color:rgba(255,255,255,.5);flex-wrap:wrap;gap:.5rem 1.5rem}
.footer-credit{font-size:.76rem;color:rgba(255,255,255,.38);flex:1 1 240px;text-align:center;min-width:200px}

/* ---------- contact chips (WhatsApp / LINE) ---------- */
.contact-chips{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.5rem}
.wa-inline,.ln-inline{display:inline-flex;align-items:center;gap:.5em;
  font-family:'Manrope';font-weight:700;font-size:.9rem;
  padding:.6em 1.15em;border-radius:100px;
  transition:background .25s,color .25s,transform .25s}
.wa-inline{background:rgba(37,211,102,.16);border:1px solid rgba(37,211,102,.6);color:#eafff2}
.wa-inline:hover{background:#25D366;color:#fff;transform:translateY(-2px)}
.ln-inline{background:rgba(6,199,85,.16);border:1px solid rgba(6,199,85,.6);color:#eafff2}
.ln-inline:hover{background:#06C755;color:#fff;transform:translateY(-2px)}
.wa-inline svg,.ln-inline svg{width:20px;height:20px;fill:currentColor;flex:0 0 auto}
.footer-col a.footer-wa-ico{display:inline-flex;align-items:center;gap:.5em}
.footer-wa-ico svg{width:15px;height:15px;fill:currentColor;flex:0 0 auto}
.footer-line svg{fill:#06C755}
.footer-line:hover svg{fill:currentColor}

/* ---------- gallery ---------- */
.gallery{padding:clamp(4rem,8vw,7rem) 0;background:var(--paper)}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.gal-item{margin:0;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  box-shadow:0 16px 40px -34px rgba(13,24,59,.5)}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.gal-item:hover img{transform:scale(1.06)}
@media (max-width:540px){.gallery-grid{grid-template-columns:1fr 1fr;gap:.6rem}}

/* footer legal / TAT licence line */
.footer-legal{font-size:.82rem;color:rgba(255,255,255,.55);margin-top:.9rem;letter-spacing:.02em}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:880px){
  .nav,.header-cta{display:none}
  .nav-toggle{display:flex}
  .site-header.open .nav{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;background:var(--paper-2);padding:1.2rem clamp(20px,5vw,48px);gap:1rem;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .pillar-grid,.pkg-grid,.svc-grid,.inquiry,.about-inner,.footer-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .svc-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .grid-2,.grid-3,.svc-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important}
  .reveal{opacity:1;transform:none;transition:none}
}