@import url('https://fonts.googleapis.com/css2?family=Bai+Jamjuree:wght@600;700&display=swap');

:root{
  --bg:#0a0f1e;
  --fg:#eef2ff;
  --muted: #c7d2fe;
  --primary:#348EF3;
  --accent:#98C5F9;
  --ring: 0 0 0 4px rgba(52,142,243,.25);
  --radius: 22px;
}

/* Reset / base */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100svh;
  color:var(--fg);
  font-family:'Bai Jamjuree', system-ui, -apple-system, Segoe UI, Roboto, Arial, Helvetica, sans-serif;
  display:grid;
  place-items:center;
  background: radial-gradient(1200px 800px at 15% -10%, rgba(152,197,249,.35), transparent 45%),
              radial-gradient(1200px 800px at 115% 10%, rgba(52,142,243,.30), transparent 45%),
              var(--bg);
  overflow-x:hidden;
}

.bg-anim{
  position:fixed; inset:-10%;
  background: conic-gradient(from 0deg at 50% 50%, rgba(152,197,249,.18), rgba(52,142,243,.18), transparent 40%);
  filter: blur(60px) saturate(120%);
  animation: spin 26s linear infinite;
  z-index:-2;
}
@keyframes spin{to{transform: rotate(360deg)}}

.container{
  width:min(820px, 92%);
  margin:auto;
  text-align:center;
  position:relative;
}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 28px 26px 30px;
  box-shadow: 0 20px 60px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.08) inset;
  backdrop-filter: blur(10px) saturate(140%);
}

.logo{
  display:block;
  margin:0 auto 14px;
  width:120px; height:120px;
  filter: drop-shadow(0 8px 22px rgba(52,142,243,.35));
  transform: translateZ(0);
}

h1.title{
  margin:0 0 6px;
  font-size: clamp(22px, 4.6vw, 38px);
  letter-spacing:.2px;
}
.sub{
  margin:0 0 18px;
  color: var(--muted);
  opacity:.95;
}

/* Buttons */
.btns{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}
.cta{
  --hover: rgba(152,197,249,.35);
  position:relative;
  display:inline-flex; align-items:center; justify-content:center;
  padding:14px 26px;
  border-radius: 999px;
  text-decoration:none; color:white; font-weight:700; font-size:1.05rem;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 10px 30px rgba(52,142,243,.35);
  transition: transform .12s ease, box-shadow .2s ease, filter .2s ease;
  outline: none;
}
.cta:after{
  content:"";
  position:absolute; inset:0;
  border-radius:inherit;
  background: radial-gradient(120px 120px at var(--x,50%) var(--y,50%), rgba(255,255,255,.18), transparent 50%);
  opacity:0; transition:opacity .25s ease;
}
.cta:hover{ transform: translateY(-2px); filter: saturate(110%) }
.cta:hover:after{opacity:1}
.cta:active{ transform: translateY(0) scale(.99) }
.cta:focus-visible{ box-shadow: var(--ring); }

.small{opacity:.85; font-size:.9rem; margin-top:12px}

/* Extra content */
.section{margin-top:28px; text-align:left}
.section h2{
  margin:0 0 8px; font-size: clamp(18px, 3.4vw, 24px);
}
.section p{ margin: 0 0 10px; color:#dbeafe }

/* Particles */
.particles{ position:fixed; inset:0; pointer-events:none; z-index:-1 }
.particle{
  position:absolute; width:8px; height:8px; border-radius:999px;
  background: radial-gradient(circle, #dbeafe, transparent 60%);
  opacity:.35; filter: blur(.5px);
  animation: float 10s linear infinite;
}
@keyframes float{ 
  0%{ transform: translateY(0); opacity:.2 }
  50%{ opacity:.5 }
  100%{ transform: translateY(-60vh); opacity:0 }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce){
  .bg-anim{animation:none}
  .particle{animation:none}
  .cta{transition:none}
}


/* --- Button group spacing fixes --- */
.btns{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:14px}
.btns .cta{margin:0}
/* Fallback spacing if some browsers ignore gap (rare older versions) */
.btns .cta + .cta{margin-left:14px}
@media (max-width: 520px){
  .btns{flex-direction:column;gap:12px}
  .btns .cta{width:100%;}
  .btns .cta + .cta{margin-left:0}
}


/* --- One-row button group & rainbow effect --- */
.btns{
  display:flex; align-items:center; justify-content:center;
  gap:16px; flex-wrap:nowrap; /* keep on one line */
  overflow-x:auto; padding-bottom:2px; /* allow swipe if viewport too narrow */
}
.btns::-webkit-scrollbar{height:6px}
.btns::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15); border-radius:999px}

.cta.rainbow{
  background: linear-gradient(90deg,
    #ff2a2a, #ff7a00, #ffd400, #22c55e, #06b6d4, #3b82f6, #8b5cf6, #ff2a2a);
  background-size: 400% 100%;
  animation: rainbowShift 6s linear infinite;
  border: 0;
}
@keyframes rainbowShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
.cta.rainbow:hover { filter: brightness(1.05) saturate(1.1); }
.cta.rainbow:active { transform: translateY(0) scale(.99); }
.cta.rainbow:focus-visible { box-shadow: 0 0 0 4px rgba(255,255,255,.25); }

/* Tighter buttons on very narrow screens but keep one row */
@media (max-width:420px){
  .cta{ padding:12px 16px; font-size:1rem }
}


/* ==== Refined CTA style (solid fill + animated rainbow border ring) ==== */
.cta{
  position:relative;
  padding:14px 28px;
  border-radius:999px;
  font-weight:800;
  letter-spacing:.2px;
  color:#fff;
  background: linear-gradient(180deg,#60a5fa,#2563eb);
  border:1px solid rgba(255,255,255,.12);
  box-shadow: 0 10px 28px rgba(37,99,235,.35), 0 1px 0 rgba(255,255,255,.2) inset;
  transition: transform .12s ease, filter .2s ease, box-shadow .2s ease;
}
.cta:hover{ transform: translateY(-2px); filter: saturate(1.08) brightness(1.02); }
.cta:active{ transform: translateY(0) scale(.99); }
.cta:focus-visible{ box-shadow: 0 0 0 4px rgba(96,165,250,.35); outline: none; }

/* Animated rainbow BORDER using mask trick */
.cta.rainbow{
  background: linear-gradient(180deg,#60a5fa,#2563eb);
  z-index:0;
}
.cta.rainbow::before{
  content:"";
  position:absolute; inset:-2px; border-radius:inherit; padding:2px;
  background: conic-gradient(
    from 0deg,
    #ff2a2a, #ff7a00, #ffd400, #22c55e, #06b6d4, #3b82f6, #8b5cf6, #ff2a2a
  );
  -webkit-mask: 
     linear-gradient(#000 0 0) content-box, 
     linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  animation: ctaRing 5s linear infinite;
  z-index:-1;
}
.cta.rainbow::after{
  content:"";
  position:absolute; inset:0; border-radius:inherit;
  box-shadow: 0 12px 32px rgba(37,99,235,.45);
  opacity:.6; z-index:-2;
}
@keyframes ctaRing{to{transform: rotate(360deg)}}

/* Ensure spacing & consistent sizing */
.btns{gap:16px; flex-wrap:nowrap}
.btns .cta{min-width:180px; text-align:center}
@media (max-width:420px){
  .btns{gap:12px}
  .btns .cta{min-width:150px; padding:12px 18px; font-size:1rem}
}


/* ==== Single CTA big button style ==== */
.btns .cta{
  font-size:1.2rem;
  padding:16px 36px;
  min-width:220px;
  background: linear-gradient(90deg,#3b82f6,#06b6d4,#22c55e,#eab308,#f97316,#ef4444);
  background-size:300% 100%;
  animation: rainbowSlide 6s linear infinite;
  border:0;
  font-weight:900;
  text-transform:uppercase;
  box-shadow:0 12px 32px rgba(0,0,0,.4);
}
@keyframes rainbowSlide{
  0%{background-position:0% 50%}
  100%{background-position:100% 50%}
}
.btns .cta:hover{filter:brightness(1.08)}