:root{
  --bg: #fffefc;
  --surface: #fff7fb;
  --accent: #ff66b3; /* pink */
  --accent-2: #7ad7ff; /* sky */
  --muted: #e6d4e9;
  --brand: #1f2a44;
  --hero-grad: linear-gradient(180deg,#fff7fb 0%, #fff2f8 60%);
  --sans: 'Poppins', 'Noto Sans KR', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--brand);-webkit-font-smoothing:antialiased}
.container{max-width:820px;margin:0 auto;padding:18px}
.header-inner{padding:10px 16px}
/* HERO full-bleed */
.site-hero{min-height:60vh;display:grid;align-items:center;position:relative;overflow:hidden;background:var(--hero-grad);border-bottom-left-radius:18px;border-bottom-right-radius:18px}
.hero-inner{display:flex;flex-direction:column;gap:18px;padding:48px 24px;z-index:3}
.hero-title{font-size:clamp(28px,6vw,56px);line-height:1.02;margin:0;font-weight:800;letter-spacing:-0.02em;font-family:'Poppins',sans-serif;color:var(--brand)}
.hero-sub{color:#6b6b7a;font-size:clamp(14px,2.4vw,18px);max-width:720px}
.hero-cta{margin-top:12px;display:flex;gap:12px}
.button{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:white;padding:12px 20px;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 8px 24px rgba(255,102,179,0.12)}
.button.secondary{background:transparent;border:1px solid rgba(31,42,68,0.06);color:var(--brand)}
/* smaller buttons inside cards */
.card .button{padding:8px 12px;font-size:14px;border-radius:10px;box-shadow:none}
/* hero visual plane (edge-to-edge) */
.hero-media{position:absolute;inset:0;z-index:1;opacity:.18;background-image:url('/games/psycho-prince/assets/eyewall.png');background-position:center;background-size:cover;filter:blur(2px);transform:scale(1.02)}
/* sections */
.section{padding:48px 0}
.section .container{padding:0 24px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.feature{background:transparent;padding:18px;border-radius:12px}
/* header */
.site-header{position:sticky;top:14px;z-index:60;background:linear-gradient(180deg,rgba(255,255,255,0.85),transparent);backdrop-filter:blur(6px);margin:8px}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 24px;border-radius:14px}
.brand{font-weight:900;font-size:18px;color:var(--brand);text-decoration:none}
.nav{display:flex;gap:12px;align-items:center}
.nav a{color:var(--muted);text-decoration:none;padding:8px;border-radius:8px}
.nav a:hover{color:var(--accent)}
.nav-toggle{display:none}

/* mobile overlay styles */
.mobile-overlay{position:fixed;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0.28),rgba(0,0,0,0.5));backdrop-filter:blur(6px);z-index:120;display:flex;align-items:flex-start;justify-content:center;opacity:0;pointer-events:none;transform:translateY(-6px);transition:opacity .28s ease,transform .28s ease}
.mobile-overlay.open{opacity:1;pointer-events:auto;transform:translateY(0)}
.mobile-inner{width:100%;max-width:520px;background:var(--surface);margin-top:64px;border-radius:14px;padding:20px;box-shadow:0 20px 60px rgba(31,42,68,0.12)}
.mobile-close{background:transparent;border:0;font-size:20px;position:absolute;right:20px;top:20px}
.mobile-nav{display:flex;flex-direction:column;gap:12px;padding-top:12px}
.mobile-nav a{padding:12px 16px;border-radius:10px;text-decoration:none;color:var(--brand);background:transparent}
.mobile-nav a:hover{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:white}

@media(max-width:720px){
  .nav{display:none}
  .nav-toggle{display:block;background:transparent;border:0;padding:8px;display:inline-flex;align-items:center;justify-content:center}
}

/* hamburger styles */
.nav-toggle{width:44px;height:44px;background:linear-gradient(180deg,rgba(255,255,255,0.9),rgba(255,255,255,0.8));border-radius:10px;border:1px solid rgba(31,42,68,0.06);box-shadow:0 6px 18px rgba(31,42,68,0.06);padding:6px}
.burger{display:inline-block;position:relative;width:24px;height:18px}
.bar{display:block;position:absolute;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2));left:0;right:0;border-radius:2px;transition:transform .28s cubic-bezier(.2,.9,.3,1),opacity .2s}
.bar1{top:0}
.bar2{top:8px}
.bar3{bottom:0}
/* when open -> morph into X */
.site-header.nav-open .bar1{transform:translateY(8px) rotate(45deg)}
.site-header.nav-open .bar2{opacity:0;transform:scaleX(.2)}
.site-header.nav-open .bar3{transform:translateY(-8px) rotate(-45deg)}

/* increase touch target on mobile */
@media(max-width:420px){
  .nav-toggle{width:48px;height:48px;padding:8px}
  .burger{width:26px;height:18px}
}
/* footer */
.site-foot{border-top:1px solid rgba(31,42,68,0.03);padding:18px 0;margin-top:36px;text-align:center;color:var(--muted)}
/* subtle motion */
@keyframes floatUp{0%{transform:translateY(6px)}50%{transform:translateY(-6px)}100%{transform:translateY(6px)}}
.hero-flag{animation:floatUp 6s ease-in-out infinite}
/* responsive */
@media(max-width:920px){.hero-inner{padding:36px}.features{grid-template-columns:1fr}}
@media(max-width:720px){.container{padding:10px}.nav{display:none}.nav-toggle{display:block}.hero-inner{padding:28px}.hero-media{opacity:.14}
  .site-hero{min-height:54vh}
}
@media(max-width:420px){.hero-title{font-size:26px}.hero-sub{font-size:14px}}