/* ===================================================================
   TN Transaction Co., Ltd. — Stylesheet
   Theme: light + green + blue. Edit the variables below to rebrand.
   =================================================================== */

:root{
  --blue:#0a6cb4;          /* primary blue */
  --blue-dark:#075089;
  --green:#1aa874;         /* primary green */
  --green-dark:#138a5e;
  --ink:#15324a;           /* dark text (blue-tinted) */
  --muted:#5a7184;         /* secondary text */
  --line:#e3ecf2;          /* borders */
  --bg:#ffffff;
  --bg-soft:#f3f8fb;       /* light blue-green wash */
  --bg-mint:#eef8f3;
  --shadow:0 10px 30px rgba(10,108,180,.10);
  --shadow-sm:0 4px 14px rgba(10,108,180,.08);
  --radius:16px;
  --grad:linear-gradient(120deg,var(--blue),var(--green));
  --maxw:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Noto Sans Thai',system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
body.th{font-family:'Noto Sans Thai','Inter',system-ui,sans-serif}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.ic{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}

h1,h2,h3,h4{line-height:1.2;color:var(--ink);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(1.6rem,3vw,2.3rem)}
.section{padding:84px 0}
.section-eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--green);margin-bottom:12px}
.section-eyebrow.light{color:#bfe9d8}
.section-head{max-width:680px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--muted);margin-top:14px;font-size:1.05rem}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:.98rem;
  cursor:pointer;border:0;transition:transform .15s ease,box-shadow .2s ease,background .2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(26,168,116,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(26,168,116,.45)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.55);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn.full{width:100%}

/* ---- Topbar ---- */
.topbar{background:var(--ink);color:#dbe7f0;font-size:.85rem}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:42px}
.topbar-contacts{display:flex;gap:22px}
.topbar-contacts span{display:inline-flex;align-items:center;gap:7px}
.topbar-contacts .ic{width:15px;height:15px;color:var(--green)}
.lang-switch{display:flex;align-items:center;gap:8px}
.lang-btn{background:none;border:0;color:#9fb4c4;font-weight:700;cursor:pointer;font-size:.85rem;padding:2px 4px;font-family:inherit}
.lang-btn.active{color:#fff}
.lang-sep{color:#456}

/* ---- Header ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .2s}
.site-header.scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:92px}
.brand-logo{height:52px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-weight:600;color:var(--ink);font-size:.97rem;position:relative}
.nav a:not(.nav-cta):hover{color:var(--blue)}
.nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--grad);transition:width .2s}
.nav a:not(.nav-cta):hover::after{width:100%}
.nav-cta{background:var(--grad);color:#fff;padding:9px 20px;border-radius:999px;box-shadow:0 6px 16px rgba(26,168,116,.3)}
.nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:26px;height:3px;background:var(--ink);border-radius:2px;transition:.25s}

/* ---- Hero ---- */
.hero{position:relative;color:#fff;
  background:linear-gradient(120deg,rgba(7,80,137,.92),rgba(19,138,94,.86)),
    url('https://images.unsplash.com/photo-1577563908411-5077b6dc7624?auto=format&fit=crop&w=1600&q=80') center/cover;
  padding:92px 0 104px;overflow:hidden}
.hero-inner{position:relative;z-index:2}
.hero-text{max-width:720px}
.eyebrow{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  padding:7px 16px;border-radius:999px;font-size:.82rem;font-weight:600;letter-spacing:.04em;margin-bottom:22px}
.hero h1{color:#fff;font-size:clamp(2rem,4.6vw,3.3rem);margin-bottom:20px}
.hero p{font-size:1.12rem;color:#eaf3f8;max-width:640px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:14px 28px}
.hero-trust span{display:inline-flex;align-items:center;gap:9px;font-size:.94rem;color:#eaf3f8}
.hero-trust .ic{color:#bff0db;width:20px;height:20px}

/* ---- Stats ---- */
.stats{margin-top:-52px;position:relative;z-index:5}
.stats-grid{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.stat{padding:30px 20px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-num{font-size:2.4rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.stat-label{color:var(--muted);font-size:.9rem;margin-top:8px}

/* ---- About ---- */
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.about-media{position:relative}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}
.about-badge{position:absolute;right:-18px;bottom:-22px;background:var(--grad);color:#fff;
  border-radius:14px;padding:18px 22px;box-shadow:var(--shadow);max-width:180px}
.about-badge-num{font-size:2rem;font-weight:800;line-height:1}
.about-badge-text{font-size:.85rem;margin-top:4px;opacity:.95}
.about-text p{color:var(--muted);margin-top:16px}
.checklist{list-style:none;margin-top:22px;display:grid;gap:12px}
.checklist li{position:relative;padding-left:32px;color:var(--ink);font-weight:500}
.checklist li::before{content:"";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;
  background:var(--bg-mint);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231aa874' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");background-size:13px;background-repeat:no-repeat;background-position:center}

/* ---- Services ---- */
.services{background:var(--bg-soft)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  transition:transform .18s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.card-ic{width:54px;height:54px;border-radius:14px;background:var(--bg-mint);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.card-ic svg{width:26px;height:26px;fill:none;stroke:var(--green);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:1.18rem;margin-bottom:8px}
.card p{color:var(--muted);font-size:.96rem}

/* ---- Products ---- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .18s,box-shadow .2s}
.product:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.product-img{aspect-ratio:16/10;overflow:hidden}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.product:hover .product-img img{transform:scale(1.07)}
.product-body{padding:20px 22px}
.product-body h3{font-size:1.12rem;margin-bottom:6px}
.product-body p{color:var(--muted);font-size:.93rem}

/* ---- Why ---- */
.why{background:linear-gradient(120deg,var(--blue-dark),var(--green-dark));color:#fff}
.why-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start}
.why h2{color:#fff}
.why-text p{color:#dbeef3;margin-top:14px}
.why-list{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.why-item{display:flex;gap:16px}
.why-ic{flex:none;width:50px;height:50px;border-radius:14px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center}
.why-ic svg{width:24px;height:24px;fill:none;stroke:#bff0db;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.why-item h3{color:#fff;font-size:1.08rem;margin-bottom:4px}
.why-item p{color:#cfe7ee;font-size:.93rem}

/* ---- CTA banner ---- */
.cta-banner{background:var(--bg-mint);padding:64px 0}
.cta-inner{text-align:center;max-width:680px;margin:0 auto}
.cta-inner p{color:var(--muted);margin:14px 0 26px}

/* ---- Contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:54px;align-items:start}
.contact-info p{color:var(--muted);margin-top:12px;margin-bottom:26px}
.contact-list{list-style:none;display:grid;gap:20px}
.contact-list li{display:flex;gap:14px;align-items:flex-start}
.ci{flex:none;width:44px;height:44px;border-radius:12px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center}
.ci svg{width:20px;height:20px;fill:none;stroke:var(--blue);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.contact-list strong{display:block;font-size:.97rem}
.contact-list span{color:var(--muted);font-size:.95rem}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:.88rem;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:10px;font-family:inherit;font-size:.96rem;color:var(--ink);background:#fcfeff;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--green);box-shadow:0 0 0 3px rgba(26,168,116,.15)}
.form-note{font-size:.82rem;color:var(--muted);margin-top:14px;text-align:center}

/* ---- Footer ---- */
.site-footer{background:var(--ink);color:#c4d6e2;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-logo{height:66px;background:#fff;padding:8px 12px;border-radius:10px;margin-bottom:16px}
.footer-brand p{color:#9fb4c4;font-size:.95rem;max-width:340px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;color:#9fb4c4;font-size:.93rem;margin-bottom:10px}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:.86rem;color:#8aa0b0;text-align:center}

/* ---- Responsive ---- */
@media(max-width:980px){
  .about-grid,.why-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .cards,.product-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .about-badge{right:18px}
}
@media(max-width:760px){
  .nav{position:fixed;inset:92px 0 auto 0;flex-direction:column;background:#fff;
    padding:20px 24px;gap:18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    transform:translateY(-150%);transition:transform .28s;align-items:flex-start}
  .nav.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .why-list{grid-template-columns:1fr}
  .topbar-contacts span:nth-child(2){display:none}
}
@media(max-width:520px){
  .section{padding:60px 0}
  .cards,.product-grid,.field-row,.footer-grid{grid-template-columns:1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{