/* === BrainTag — Forest × Laser Tag × Flash Anzan × Sasuke === */

:root {
  --bg: #060a0f;
  --jp-font: ui-sans-serif, system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
  --bg2: #0a1018;
  --panel: rgba(15, 25, 40, 0.85);
  --text: #e8edf5;
  --muted: rgba(232, 237, 245, 0.55);
  /* Brand accent (soft forest / adventure, not neon) */
  --neon: #84a98c;          /* sage */
  --neon-dim: rgba(132, 169, 140, 0.12);
  --neon-glow: 0 0 12px rgba(132, 169, 140, 0.22), 0 0 28px rgba(132, 169, 140, 0.12);

  --fire: #ff4d2a;
  --fire-dim: rgba(255, 77, 42, 0.15);
  --gold: #ffc107;
  --gold-dim: rgba(255, 193, 7, 0.15);

  --line: rgba(132, 169, 140, 0.18);
  --radius: 16px;
  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scanline overlay */
.scanlines {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(132, 169, 140, 0.010) 2px,
    rgba(132, 169, 140, 0.010) 4px
  );
}

a { color: inherit; text-decoration: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* Japanese helper styles (bilingual site) */
.jp {
  font-family: var(--jp-font);
  font-size: 12px;
  line-height: 1.7;
  color: rgba(232, 237, 245, 0.60);
  margin-top: 8px;
}
.jp-inline {
  font-family: var(--jp-font);
  font-size: 10px;
  letter-spacing: 0.5px;
  color: rgba(232, 237, 245, 0.60);
  margin-left: 8px;
}

/* === HEADER === */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(16px) saturate(1.4);
  background: rgba(6, 10, 15, 0.85);
  border-bottom: 1px solid var(--line);
}
.header__inner {
  display: flex; align-items: center; gap: 16px; padding: 14px 0;
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand__icon { font-size: 20px; filter: drop-shadow(0 0 10px rgba(132, 169, 140, 0.25)); }
.brand__name {
  font-family: var(--font-display); font-weight: 900; font-size: 18px;
  letter-spacing: 3px; text-transform: uppercase;
}
.brand__accent { color: var(--neon); text-shadow: var(--neon-glow); }
.brand--sm .brand__name { font-size: 14px; }

.nav { display: none; gap: 20px; margin-left: auto; }
.nav a {
  font-family: var(--font-display); font-size: 11px; letter-spacing: 2px;
  color: var(--muted); transition: color 0.2s;
}
.nav a:hover { color: var(--neon); text-decoration: none; }
@media (min-width: 900px) { .nav { display: flex; } }

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: 10px; border: none;
  font-family: var(--font-display); font-size: 12px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  cursor: pointer; transition: all 0.25s; text-decoration: none;
  white-space: nowrap;
}
.btn--glow {
  background: var(--neon); color: #060a0f;
  box-shadow: var(--neon-glow);
}
.btn--glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0,255,136,0.6), 0 0 80px rgba(0,255,136,0.25);
  text-decoration: none;
}
.btn--outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--line);
}
.btn--outline:hover { border-color: var(--neon); color: var(--neon); text-decoration: none; }
.btn--lg { padding: 16px 32px; font-size: 13px; border-radius: 12px; }
.btn--full { width: 100%; }

/* === HERO === */
.hero {
  position: relative; padding: 100px 0 40px; min-height: 100vh;
  display: flex; align-items: center;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(800px 600px at 15% 30%, rgba(0, 255, 136, 0.08), transparent 60%),
    radial-gradient(600px 500px at 85% 20%, rgba(255, 77, 42, 0.06), transparent 50%),
    radial-gradient(1200px 800px at 50% 80%, rgba(0, 100, 255, 0.04), transparent);
}
.hero__grid {
  display: grid; grid-template-columns: 1fr; gap: 32px; align-items: center;
}
@media (min-width: 1000px) {
  .hero__grid { grid-template-columns: 1fr 1fr; gap: 48px; }
}

.badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--neon-dim);
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 2px; color: var(--neon);
}
.badge__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

h1 { margin: 24px 0; }
.h1__line {
  display: block;
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(42px, 8vw, 72px);
  line-height: 1.05; letter-spacing: 4px;
}
.h1__accent {
  color: var(--neon);
  text-shadow: var(--neon-glow);
}

.lead { font-size: 17px; color: var(--muted); max-width: 52ch; line-height: 1.7; }
.lead strong { color: var(--text); }

/* Stat row */
.stat-row {
  display: flex; align-items: center; gap: 16px;
  margin: 28px 0;
  padding: 16px 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  width: fit-content;
}
.stat { text-align: center; }
.stat__val {
  font-family: var(--font-display); font-weight: 900; font-size: 32px;
  color: var(--neon); text-shadow: var(--neon-glow);
}
.stat__pct { font-size: 18px; }
.stat__label {
  font-family: var(--font-display); font-size: 10px; letter-spacing: 3px;
  color: var(--muted); margin-top: 2px;
}
.stat__divider {
  font-family: var(--font-display); font-size: 24px; color: var(--muted);
}

.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

.hero__media { position: relative; }
.hero__frame {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 255, 136, 0.08);
}
.hero__frame img { width: 100%; display: block; }
.hero__hud {
  position: absolute; top: 12px; right: 12px;
  display: flex; gap: 8px;
}
.hud__tag {
  font-family: var(--font-display); font-size: 10px; font-weight: 700;
  letter-spacing: 2px; padding: 5px 10px;
  border-radius: 6px; background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--neon); color: var(--neon);
}
.hud__tag--red { border-color: var(--fire); color: var(--fire); }

.hero__scroll {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
}
.scroll__line {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, var(--neon), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 40px; }
  50% { opacity: 1; height: 60px; }
}

/* === SECTIONS === */
.section { padding: 80px 0; }
.section--dark { background: var(--bg2); }

.section__header { margin-bottom: 40px; }
.section__tag {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 3px; color: var(--neon); margin-bottom: 12px;
}
h2 {
  font-family: var(--font-display); font-size: clamp(24px, 4vw, 36px);
  font-weight: 900; letter-spacing: 1px; line-height: 1.2;
}
.text-glow { color: var(--neon); text-shadow: var(--neon-glow); }

h3 {
  font-family: var(--font-display); font-size: 16px; font-weight: 700;
  letter-spacing: 1px; margin-bottom: 8px;
}

.muted { color: var(--muted); }

/* === GAME LOOP === */
.loop {
  display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 24px;
}
@media (min-width: 900px) {
  .loop { grid-template-columns: repeat(3, 1fr auto); gap: 8px; }
  .loop > :last-child { grid-column: span 1; }
  .loop__arrow--down { display: none; }
}
.loop__step {
  border: 1px solid var(--line); background: var(--panel);
  border-radius: var(--radius); padding: 20px;
  position: relative;
}
.loop__step--highlight {
  border-color: rgba(0, 255, 136, 0.4);
  background: linear-gradient(135deg, var(--neon-dim), var(--panel));
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.1);
}
.loop__icon { font-size: 28px; margin-bottom: 8px; }
.loop__num {
  font-family: var(--font-display); font-size: 10px; font-weight: 700;
  color: var(--neon); letter-spacing: 2px; margin-bottom: 8px;
}
.loop__step h3 { font-size: 14px; }
.loop__step p { font-size: 13px; color: var(--muted); margin: 0; }
.loop__arrow {
  display: none; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 20px; color: var(--neon);
}
@media (min-width: 900px) { .loop__arrow { display: flex; } }

/* === CALLOUT === */
.callout { margin: 32px 0; padding: 20px 28px; border-radius: var(--radius); }
.callout--neon {
  border: 1px solid rgba(0, 255, 136, 0.3);
  background: var(--neon-dim);
}
.callout__quote {
  font-family: var(--font-display); font-size: 16px; font-weight: 700;
  letter-spacing: 0.5px; color: var(--neon);
  text-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

/* === TWO COL === */
.two {
  display: grid; grid-template-columns: 1fr; gap: 16px;
  margin-top: 28px; align-items: stretch;
}
@media (min-width: 960px) { .two { grid-template-columns: 1fr 1fr; gap: 20px; } }

.card--glass {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(8px);
  border-radius: var(--radius); overflow: hidden;
}
.card--text { padding: 24px; }
.card--glass img { width: 100%; display: block; }

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.skill-tag {
  font-family: var(--font-display); font-size: 10px; font-weight: 700;
  letter-spacing: 2px; padding: 6px 12px;
  border-radius: 8px; border: 1px solid var(--line);
  background: var(--neon-dim); color: var(--neon);
}

/* === PHONE SHOWCASE === */
.phone-showcase {
  display: grid; grid-template-columns: 1fr; gap: 32px;
  margin-top: 32px;
  max-width: 800px; margin-left: auto; margin-right: auto;
}

.phone-card {
  text-align: center;
}
.phone-card--featured { }

.phone-label {
  font-family: var(--font-display); font-size: 10px; font-weight: 700;
  letter-spacing: 3px; color: var(--muted); margin-bottom: 12px;
}
.phone-label--neon { color: var(--neon); text-shadow: 0 0 10px rgba(0,255,136,0.3); }

.phone-frame {
  position: relative;
  max-width: 100%; margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  border: 3px solid rgba(255,255,255,0.12);
  background: #000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 30px rgba(0,255,136,0.05);
}
.phone-card--featured .phone-frame {
  border-color: rgba(0,255,136,0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 40px rgba(0,255,136,0.12);
}
.phone-frame img {
  width: 100%; display: block;
}

.phone-desc {
  margin-top: 14px;
  font-size: 13px; color: var(--muted);
  max-width: 280px; margin-left: auto; margin-right: auto;
  line-height: 1.6;
}

/* === STATION TIERS === */
.tiers {
  display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 28px;
}
@media (min-width: 960px) { .tiers { grid-template-columns: repeat(3, 1fr); } }

.tier {
  border-radius: var(--radius); overflow: hidden; position: relative;
  border: 1px solid var(--line); background: var(--panel);
  transition: transform 0.3s, box-shadow 0.3s;
}
.tier:hover { transform: translateY(-4px); }
.tier--green { border-color: rgba(0, 255, 136, 0.3); }
.tier--green:hover { box-shadow: 0 12px 40px rgba(0, 255, 136, 0.15); }
.tier--yellow { border-color: rgba(255, 193, 7, 0.3); }
.tier--yellow:hover { box-shadow: 0 12px 40px rgba(255, 193, 7, 0.15); }
.tier--red { border-color: rgba(255, 77, 42, 0.3); }
.tier--red:hover { box-shadow: 0 12px 40px rgba(255, 77, 42, 0.15); }

.tier__badge {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  font-family: var(--font-display); font-size: 10px; font-weight: 900;
  letter-spacing: 3px; padding: 6px 14px;
  border-radius: 8px; background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
}
.tier--green .tier__badge { color: var(--neon); border: 1px solid rgba(0, 255, 136, 0.4); }
.tier--yellow .tier__badge { color: var(--gold); border: 1px solid rgba(255, 193, 7, 0.4); }
.tier--red .tier__badge { color: var(--fire); border: 1px solid rgba(255, 77, 42, 0.4); }

.tier img { width: 100%; display: block; }
.tier__info { padding: 16px 20px; }
.tier__info p { font-size: 14px; color: var(--muted); margin: 0 0 12px; }
.tier__stats {
  display: flex; gap: 16px;
  font-size: 12px; color: var(--muted);
}

/* === GRID 3 === */
.grid3 {
  display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 28px;
}
@media (min-width: 900px) { .grid3 { grid-template-columns: repeat(3, 1fr); } }

.reason {
  border: 1px solid var(--line); background: var(--panel);
  border-radius: var(--radius); padding: 24px;
}
.reason__icon { font-size: 28px; margin-bottom: 12px; }
.reason p { color: var(--muted); font-size: 14px; margin: 0; }

/* === USE CASES === */
.use-cases { display: grid; gap: 10px; margin-top: 12px; }
.use-case {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--line); background: rgba(0, 255, 136, 0.04);
  font-size: 14px; font-weight: 600;
}
.use-case__icon { font-size: 20px; }

/* === SAFETY STRIP === */
.safety-strip {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px;
  padding: 16px 20px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--panel);
}
.safety-item {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 1px; color: var(--neon);
  padding: 4px 12px; border-radius: 6px;
  background: var(--neon-dim);
}

/* === WAITLIST === */
.waitlist {
  display: grid; grid-template-columns: 1fr; gap: 32px;
  border: 1px solid var(--line); background: var(--panel);
  border-radius: 24px; padding: 32px;
  box-shadow: 0 0 60px rgba(0, 255, 136, 0.06);
}
@media (min-width: 960px) {
  .waitlist { grid-template-columns: 1fr 1fr; padding: 40px; }
}
.waitlist__trust {
  display: flex; gap: 16px; margin-top: 16px;
  font-size: 13px; color: var(--muted);
}

.form { display: grid; gap: 14px; }
.form__row {
  display: grid; grid-template-columns: 1fr; gap: 12px;
}
@media (min-width: 600px) { .form__row { grid-template-columns: 1fr 1fr; } }

label span {
  display: block; font-family: var(--font-display); font-size: 10px;
  letter-spacing: 2px; color: var(--muted); margin-bottom: 6px;
}
input, select {
  width: 100%; padding: 13px 14px;
  border-radius: 10px; border: 1px solid var(--line);
  background: rgba(6, 10, 15, 0.8); color: var(--text);
  font-family: var(--font-body); font-size: 14px;
  outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
input::placeholder { color: rgba(232, 237, 245, 0.25); }
input:focus, select:focus {
  border-color: var(--neon);
  box-shadow: 0 0 0 4px var(--neon-dim), 0 0 20px rgba(0, 255, 136, 0.1);
}

/* === FAQ === */
.faq-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
@media (min-width: 700px) { .faq-grid { grid-template-columns: 1fr 1fr; } }

.faq {
  border: 1px solid var(--line); background: var(--panel);
  border-radius: var(--radius); padding: 16px 20px;
  transition: border-color 0.2s;
}
.faq[open] { border-color: rgba(0, 255, 136, 0.3); }
.faq summary {
  cursor: pointer;
  font-family: var(--font-display); font-size: 13px; font-weight: 700;
  letter-spacing: 0.5px; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq p { color: var(--muted); margin: 10px 0 0; font-size: 14px; }

/* === FOOTER === */
.footer {
  padding: 24px 0; border-top: 1px solid var(--line);
}
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}

/* === RESPONSIVE === */
@media (max-width: 600px) {
  .stat-row { gap: 10px; padding: 12px 16px; }
  .stat__val { font-size: 24px; }
  .h1__line { letter-spacing: 2px; }
  .section { padding: 50px 0; }
}