/* ---------- Tokens ---------- */
:root{
  --navy-950:#080f1a;
  --navy-900:#0e1c2f;
  --navy-800:#152a42;
  --navy-700:#1e3a56;
  --blue:#4fa3e0;
  --blue-soft:#7cc0ee;
  --blue-dim:#2c4c66;
  --white:#ffffff;
  --gray-050:#f6f8fa;
  --gray-100:#eef1f5;
  --gray-300:#c9d2dc;
  --gray-500:#8a96a6;
  --gray-700:#4c5866;

  --font-head:'Archivo', sans-serif;
  --font-body:'Inter', sans-serif;

  --max-w:1180px;
  --pad:clamp(1.5rem, 4vw, 3.5rem);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--navy-900);
  background:var(--white);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }

.section-inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 var(--pad);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-body);
  font-weight:600;
  font-size:0.95rem;
  padding:0.9rem 1.6rem;
  border-radius:6px;
  transition:transform .18s ease, background-color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn:focus-visible{ outline:2px solid var(--blue-soft); outline-offset:3px; }

.btn-primary{
  background:var(--blue);
  color:var(--navy-950);
}
.btn-primary:hover{ background:var(--blue-soft); }

.btn-secondary{
  background:transparent;
  color:var(--white);
  border:1px solid var(--gray-500);
}
.btn-secondary:hover{ border-color:var(--blue-soft); color:var(--blue-soft); }

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(8,15,26,0.72);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.header-inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0.85rem var(--pad);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  align-items:center;
  gap:0.65rem;
}
.brand-mark{ width:28px; height:28px; object-fit:contain; }
.brand-name{
  font-family:var(--font-head);
  font-weight:700;
  font-size:1rem;
  letter-spacing:0.01em;
  color:var(--white);
}

.main-nav{ display:flex; gap:2.25rem; }
.main-nav a{
  color:var(--gray-300);
  font-size:0.94rem;
  font-weight:500;
  position:relative;
  padding:0.25rem 0;
  transition:color .18s ease;
}
.main-nav a:hover{ color:var(--white); }
.main-nav a::after{
  content:'';
  position:absolute;
  left:0; bottom:-2px;
  width:0; height:1px;
  background:var(--blue);
  transition:width .2s ease;
}
.main-nav a:hover::after{ width:100%; }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:32px; height:32px;
  background:none;
  border:none;
  cursor:pointer;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:100%;
  height:2px;
  background:var(--white);
  transition:transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(180deg, var(--navy-950) 0%, var(--navy-900) 60%, var(--navy-800) 100%);
  color:var(--white);
  padding:calc(6.5rem + var(--pad)) var(--pad) 6rem;
  overflow:hidden;
}
.hero-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 70% 30%, black 0%, transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 70% 30%, black 0%, transparent 75%);
}
.hero-inner{
  position:relative;
  max-width:var(--max-w);
  margin:0 auto;
}
.hero-mark{
  display:flex;
  align-items:center;
  gap:0.85rem;
  margin-bottom:1.75rem;
}
.hero-rule{
  width:2px;
  height:22px;
  background:var(--blue);
  box-shadow:0 0 10px rgba(79,163,224,0.7);
}
.hero-eyebrow{
  font-size:0.92rem;
  font-weight:500;
  color:var(--gray-300);
  letter-spacing:0.02em;
}
.hero-title{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(2.4rem, 5.4vw, 4.4rem);
  line-height:1.08;
  letter-spacing:-0.015em;
  max-width:16ch;
  margin:0 0 1.5rem;
}
.hero-sub{
  font-size:1.08rem;
  color:var(--gray-300);
  max-width:46ch;
  margin:0 0 2.5rem;
}

/* ---------- Section heading (shared) ---------- */
.section-heading{
  display:flex;
  align-items:center;
  gap:0.85rem;
  margin-bottom:2.75rem;
}
.heading-rule{
  width:2px;
  height:20px;
  background:var(--blue);
}
.heading-rule.light{ background:var(--blue-soft); }
.section-heading h2{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(1.5rem, 2.4vw, 1.9rem);
  margin:0;
  letter-spacing:-0.01em;
}

/* ---------- Game section ---------- */
.game{
  background:var(--gray-050);
  padding:6rem 0;
}
.game-card{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:0;
  background:var(--navy-900);
  border-radius:10px;
  overflow:hidden;
}
.game-art{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:3rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(79,163,224,0.14), transparent 55%),
    var(--navy-950);
}
.renorise-logo{
  max-width:280px;
  width:100%;
}
.game-copy{
  padding:3.25rem clamp(1.75rem, 4vw, 3.5rem);
  color:var(--white);
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.game-title{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(1.7rem, 3vw, 2.2rem);
  margin:0 0 0.35rem;
}
.game-subtitle{
  color:var(--blue-soft);
  font-weight:500;
  margin:0 0 1.15rem;
  font-size:1rem;
}
.game-desc{
  color:var(--gray-300);
  max-width:44ch;
  margin:0 0 2rem;
}

/* ---------- About ---------- */
.about{
  background:var(--navy-900);
  color:var(--white);
  padding:6rem 0;
}
.about-inner{ max-width:820px; }
.about-text{
  font-size:clamp(1.1rem, 2vw, 1.35rem);
  color:var(--gray-300);
  max-width:38ch;
  line-height:1.6;
  margin:0;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--navy-950);
  color:var(--gray-500);
  padding:3rem var(--pad) 2.5rem;
}
.footer-inner{
  max-width:var(--max-w);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:1.25rem;
  border-top:1px solid rgba(255,255,255,0.08);
  padding-top:2rem;
}
.footer-mark{ width:24px; height:24px; object-fit:contain; opacity:0.85; }
.footer-links{ display:flex; gap:1.75rem; }
.footer-links a{
  font-size:0.92rem;
  transition:color .18s ease;
}
.footer-links a:hover{ color:var(--white); }
.footer-copy{
  font-size:0.85rem;
  margin:0;
  width:100%;
  order:3;
  color:var(--gray-500);
}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .game-card{ grid-template-columns:1fr; }
  .game-art{ padding:2.5rem 2rem; }
  .renorise-logo{ max-width:220px; }
}

@media (max-width:640px){
  .main-nav{
    display:flex;
    flex-direction:column;
    gap:0;
    position:absolute;
    top:100%;
    left:0; right:0;
    background:rgba(8,15,26,0.98);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(255,255,255,0.08);
    max-height:0;
    overflow:hidden;
    transition:max-height .28s ease;
  }
  .main-nav.open{ max-height:220px; }
  .main-nav a{
    padding:1rem var(--pad);
    border-top:1px solid rgba(255,255,255,0.06);
  }
  .main-nav a::after{ display:none; }
  .nav-toggle{ display:flex; }

  .hero{ padding-top:calc(5.5rem + var(--pad)); }
  .hero-title{ max-width:100%; }

  .footer-inner{ flex-direction:column; align-items:flex-start; }
  .footer-links{ order:2; }
}