/* SingKANA EN LP styles (isolated under /en/)
   - This is a copy of root `style.css` to avoid cross-page CSS mixing.
*/

:root{
  --page-max: 1120px;
  --page-pad: 24px;

  --bg0: #070a12;
  --bg1: #0b1020;

  --ink: #e5e7eb;
  --muted: rgba(226, 232, 240, 0.72);
  --muted2: rgba(226, 232, 240, 0.55);

  --stroke: rgba(255,255,255,0.10);
  --card: rgba(2,6,23,0.55);
  --card2: rgba(2,6,23,0.35);
  --shadow: 0 18px 55px rgba(0,0,0,0.45);

  --accent1: rgba(139, 92, 246, 0.95);
  --accent2: rgba(236, 72, 153, 0.95);
  --accent3: rgba(56, 189, 248, 0.95);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }

body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans JP", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 700px at 20% 15%, rgba(139, 92, 246, 0.18), transparent 55%),
    radial-gradient(900px 700px at 85% 10%, rgba(56, 189, 248, 0.14), transparent 55%),
    radial-gradient(1000px 700px at 60% 95%, rgba(236, 72, 153, 0.12), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x: hidden;
}

a{ color: inherit; text-decoration: none; }
a:hover{ color: rgba(203, 213, 225, 0.95); }

/* ---------- Centered layout shell ---------- */
.nav,
.hero-inner,
.footer-inner{
  width: min(var(--page-max), calc(100% - (var(--page-pad) * 2)));
  margin-left: auto;
  margin-right: auto;
}

/* Shared centered container (use this for main content) */
.container{
  width: min(var(--page-max), calc(100% - (var(--page-pad) * 2)));
  margin-left: auto;
  margin-right: auto;
}

/* Anchor landing */
#about, #immersion, #waitlist{ scroll-margin-top: 88px; }

/* ---------- Hero ---------- */
.hero{
  position: relative;
  padding-bottom: 48px;
}
.hero::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1100px 720px at 15% 5%, rgba(139,92,246,0.22), transparent 60%),
    radial-gradient(900px 680px at 90% 0%, rgba(56,189,248,0.18), transparent 60%);
  opacity: 0.9;
}
.hero-space{ height: 18px; }

/* ---------- Nav ---------- */
.nav{
  position: relative;
  z-index: 2;
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 160px;
}
.brand.small{ min-width: 0; }
.brand-mark{
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 14px rgba(139, 92, 246, 0.22));
}
.brand-name{
  font-weight: 700;
  letter-spacing: 0.02em;
}
.nav-links{
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(226, 232, 240, 0.85);
}
.nav-links a{ transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease; }
.nav-links a:hover{ color: rgba(226,232,240,1); }
.nav-links a.pill{
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(2,6,23,0.35);
  color: rgba(226, 232, 240, 0.92);
}
.nav-links a.pill:hover{
  border-color: rgba(139,92,246,0.55);
  background: rgba(139,92,246,0.10);
}

/* ---------- Hero content ---------- */
.hero-inner{
  position: relative;
  z-index: 2;
  padding: 40px 0 0;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 44px;
  align-items: center;
}
.kicker{
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(226,232,240,0.62);
  margin: 0 0 10px;
}
h1{
  margin: 0;
  font-weight: 800;
  font-size: 54px;
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.h1-sub{
  display: block;
  font-weight: 700;
  font-size: 48px;
  color: rgba(226,232,240,0.80);
  margin-top: 10px;
}
.subtitle{
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 58ch;
}
.cta{
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(2,6,23,0.35);
  transition: transform 0.12s ease, filter 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}
.btn.primary{
  border-color: rgba(139,92,246,0.55);
  background: linear-gradient(90deg, rgba(139,92,246,0.95), rgba(236,72,153,0.92));
  box-shadow: 0 0 40px rgba(139,92,246,0.20);
}
.btn.ghost:hover,
.btn:hover{
  border-color: rgba(139,92,246,0.55);
  background: rgba(139,92,246,0.10);
}
.btn.primary:hover{
  filter: brightness(1.06);
}
.micro{
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--muted2);
}
.micro.center{ text-align: center; }
.micro-dot{
  display: inline-block;
  height: 8px;
  width: 8px;
  border-radius: 999px;
  background: rgba(16,185,129,0.95);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.18);
  margin-right: 8px;
  vertical-align: -1px;
}
.sep{ opacity: 0.7; }

/* ---------- Hero card ---------- */
.hero-card{
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background: rgba(2,6,23,0.40);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-top{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}
.chip{
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(2,6,23,0.35);
  color: rgba(226,232,240,0.9);
  white-space: nowrap;
}
.chip.subtle{ opacity: 0.8; }
.card-body{ padding: 16px; }
.card-title{
  margin: 0;
  font-weight: 800;
  font-size: 18px;
}
.card-text{
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.card-metrics{
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.metric-label{ font-size: 11px; color: var(--muted2); }
.metric-value{ margin-top: 3px; font-weight: 700; font-size: 12px; }
.card-bottom{
  padding: 12px 16px 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}
.softline{
  height: 1px;
  background: linear-gradient(90deg, rgba(139,92,246,0.0), rgba(139,92,246,0.55), rgba(56,189,248,0.0));
  opacity: 0.8;
  margin-bottom: 10px;
}
.card-note{ margin: 0; font-size: 12px; color: rgba(226,232,240,0.70); }

/* ---------- Main sections ---------- */
main{
  position: relative;
  z-index: 2;
  padding: 0 0 40px;
  width: 100%;
}
.section{ padding: 68px 0; }
.section-head h2{
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.01em;
}
.section-head .lead{
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 70ch;
}
.section-head.center{ text-align: center; }
.section-head.center .lead{ margin-left: auto; margin-right: auto; }

.grid-3{
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.grid-2{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}
.panel{
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(2,6,23,0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 16px;
}
.panel h3{ margin: 8px 0 0; font-size: 16px; }
.panel p{ margin: 10px 0 0; font-size: 13px; line-height: 1.7; color: var(--muted); }
.panel-icon{ font-size: 18px; opacity: 0.9; }

.section.dark{ position: relative; }
.section.dark::before{
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  width: 100vw;
  height: 100%;
  background:
    radial-gradient(1000px 700px at 20% 40%, rgba(139,92,246,0.16), transparent 60%),
    linear-gradient(180deg, rgba(2,6,23,0.65), rgba(2,6,23,0.38));
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  z-index: -1;
}
.panel.darkpanel{ background: rgba(2,6,23,0.45); }
.emphasis{ margin: 24px 0 0; font-size: 18px; line-height: 1.5; }

.notebox{
  margin-top: 20px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(2,6,23,0.35);
  padding: 14px 16px;
}
.note-badge{
  display: inline-block;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(139,92,246,0.12);
  color: rgba(226,232,240,0.9);
  margin-bottom: 8px;
}
.notebox p{ margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.list{
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.waitlist-form{
  margin-top: 16px;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.waitlist-form input{
  width: min(420px, 100%);
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(2,6,23,0.35);
  color: rgba(226,232,240,0.92);
  outline: none;
}
.waitlist-form input::placeholder{ color: rgba(148,163,184,0.75); }
.waitlist-form button{
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid rgba(139,92,246,0.55);
  background: linear-gradient(90deg, rgba(139,92,246,0.95), rgba(236,72,153,0.92));
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}
.waitlist-form button:hover{ filter: brightness(1.06); }

.footer{
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(2,6,23,0.35);
}
.footer-inner{
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-text{
  margin: 0;
  font-size: 12px;
  color: rgba(148,163,184,0.95);
}

.sr-only{
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px){
  h1{ font-size: 44px; }
  .h1-sub{ font-size: 38px; }
  .hero-inner{
    grid-template-columns: 1fr;
    gap: 18px;
    padding-top: 26px;
  }
}
@media (max-width: 640px){
  :root{ --page-pad: 16px; }
  h1{ font-size: 36px; }
  .h1-sub{ font-size: 30px; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .section{ padding: 52px 0; }
  .nav{ padding: 14px 0; }
}