/* ==========================================================================
   Codeopwen — base.css
   ตัวแปรสี, reset, ปุ่ม, เมนูนำทาง, footer  (ใช้ร่วมกันทุกหน้า)
   ========================================================================== */

:root{
  --blue:#1a35ff;
  --blue-hi:#4e6bff;
  --blue-deep:#0f24c4;
  --blue-night:#101c8f;
  --sky:#eef1ff;
  --ink:#0d1130;
  --muted:#5b628a;
  --paper:#f7f9ff;
  --line:#e2e7fc;
  --gold:#e6c86a;
}
*{margin:0;padding:0;box-sizing:border-box}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Sans Thai',sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.75;overflow-x:hidden;
}
.px{font-family:'Silkscreen',cursive}
h1,h2,h3{font-family:'Anuphan','IBM Plex Sans Thai',sans-serif}
a{text-decoration:none;color:inherit}
.container{max-width:1140px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  padding:13px 28px;border-radius:999px;font-weight:600;font-size:15px;
  transition:.22s;cursor:pointer;border:none;
  font-family:'IBM Plex Sans Thai',sans-serif;line-height:1.5;
  text-align:center;white-space:nowrap;
}
.curve{position:absolute;border-radius:50%;border:2px solid rgba(255,255,255,.14);pointer-events:none}
.curve.c1{width:900px;height:900px;top:-460px;left:-260px;border-width:60px;border-color:rgba(255,255,255,.05)}
.curve.c2{width:640px;height:640px;bottom:-300px;right:-160px;border-width:44px;border-color:rgba(255,255,255,.07)}
.curve.c3{width:340px;height:340px;top:16%;right:6%;border-width:1.5px;border-color:rgba(255,255,255,.2)}
.spark{
  position:absolute;width:6px;height:6px;background:#fff;border-radius:2px;
  opacity:.5;animation:tw 3.4s ease-in-out infinite;
}
@keyframes tw{50%{opacity:.08;transform:scale(.6)}}
nav{position:relative;z-index:10}
nav .container{max-width:1400px}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:84px;position:relative}
.nav-links{
  display:flex;gap:26px;font-size:14.5px;font-weight:500;color:rgba(255,255,255,.85);
  position:absolute;left:50%;transform:translateX(-50%);
}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{height:25px;width:auto;display:block}
.foot-logo-img{height:25px;width:auto;display:block}
.logo-mark{
  width:36px;height:36px;background:#fff;border-radius:9px;
  display:grid;place-items:center;color:var(--blue);font-size:15px;
  box-shadow:0 8px 20px -6px rgba(9,14,80,.45);
}
.logo-text{font-family:'Silkscreen';font-size:14.5px;color:#fff;letter-spacing:-.5px}
.nav-links a{transition:.2s}
.nav-links a:hover{color:#fff;text-shadow:0 0 18px rgba(255,255,255,.7)}
.menu-btn{
  display:none;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.35);
  border-radius:10px;width:44px;height:44px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-btn span{width:20px;height:2px;background:#fff;border-radius:2px;transition:.25s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  display:none;flex-direction:column;gap:4px;
  background:rgba(13,20,120,.97);backdrop-filter:blur(10px);
  border-radius:16px;padding:14px;margin-top:6px;
  border:1px solid rgba(255,255,255,.15);
}
.mobile-menu a{
  color:#fff;font-size:15.5px;font-weight:500;
  padding:12px 16px;border-radius:10px;transition:.2s;
}
.mobile-menu a:hover{background:rgba(255,255,255,.1)}
.mobile-menu.show{display:flex}
.btn-white{background:#fff;color:var(--blue-deep);box-shadow:0 10px 26px -10px rgba(9,14,80,.55)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(9,14,80,.65)}
.btn-line{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08);backdrop-filter:blur(6px)}
.btn-line:hover{background:rgba(255,255,255,.18);border-color:#fff;transform:translateY(-2px)}
@keyframes blink{50%{opacity:.15}}
@keyframes pop{from{opacity:0;transform:scale(.8) translateY(10px)}}
.btn-blue{background:linear-gradient(135deg,var(--blue),#3d56ff);color:#fff;box-shadow:0 10px 26px -10px rgba(26,53,255,.6)}
.btn-blue:hover{transform:translateY(-2px)}
.btn-ghost{border:1.5px solid var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
footer{
  background:linear-gradient(180deg,#0f1670,#0a0f4d);
  color:#aab3e8;padding:58px 0 32px;margin-top:52px;position:relative;overflow:hidden;
}
footer::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  border:44px solid rgba(255,255,255,.04);bottom:-300px;left:-160px;
}
footer .container{position:relative}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.foot-grid h4{color:#fff;font-size:15px;margin-bottom:15px;font-family:'Anuphan'}
.foot-grid a{display:block;font-size:14px;padding:5px 0;transition:.2s}
.foot-grid a:hover{color:#fff;transform:translateX(3px)}
.foot-logo{display:flex;align-items:center;gap:10px;margin-bottom:15px}
.foot-note{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:23px;font-size:12.5px;color:#7d86c9;text-align:center}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.btn-lineapp{background:#06C755;color:#fff;box-shadow:0 12px 28px -12px rgba(6,199,85,.6)}
.btn-lineapp:hover{transform:translateY(-2px)}

@media(max-width:960px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .menu-btn{display:flex}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* เมนูที่กำลังเปิดอยู่ */
.nav-links a.on{color:#fff;font-weight:600}