:root {
  --bg: #05070f;
  --ink: #eef4ff;
  --muted: #93a0c0;
  --cyan: #2ee6ff;
  --mag: #ff3d9a;
  --gold: #ffc14d;
  --panel: rgba(8, 12, 26, 0.78);
  --line: rgba(46, 230, 255, 0.22);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: "Rajdhani", sans-serif;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
}

#scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    rgba(0, 0, 0, 0.08) 2px 3px
  );
  mix-blend-mode: multiply;
}

#app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 16px 20px;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(46, 230, 255, 0.12), transparent 60%),
    radial-gradient(700px 380px at 90% 110%, rgba(255, 61, 154, 0.1), transparent 55%),
    var(--bg);
}

#topbar {
  width: min(960px, 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  letter-spacing: 0.22em;
  font-size: 15px;
}

.brand-gem {
  width: 14px;
  height: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--mag));
  transform: rotate(45deg);
  box-shadow: 0 0 16px rgba(46, 230, 255, 0.7);
}

#hud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

#hud span {
  font-family: "Orbitron", sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: rgba(8, 12, 26, 0.7);
  border-radius: 999px;
}

#hud span, #hud .chip-btn { text-align: center; white-space: nowrap; }
#score-chip { min-width: 112px; }
#lives-chip { min-width: 64px; }
#level-chip { min-width: 84px; }
#combo-chip { min-width: 98px; }
#heat-chip { min-width: 96px; }
#grade-chip { min-width: 78px; }
.invisible { visibility: hidden; }

.chip-btn {
  font-family: "Orbitron", sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: rgba(8, 12, 26, 0.7);
  color: var(--ink);
  border-radius: 999px;
  cursor: pointer;
}
.chip-btn:hover { border-color: rgba(46, 230, 255, 0.6); }

#combo-chip { color: var(--gold); border-color: rgba(255, 193, 77, 0.4); }
#heat-chip { color: #ff6b4a; border-color: rgba(255, 90, 31, 0.45); }
#heat-chip.hot { color: #ffe08a; box-shadow: 0 0 14px rgba(255, 90, 31, 0.45); }
#grade-chip { color: #d24dff; border-color: rgba(210, 77, 255, 0.4); }

#stage-wrap {
  position: relative;
  width: min(960px, 100%, calc((100vh - 86px) * 1.6));
  width: min(960px, 100%, calc((100dvh - 86px) * 1.6));
  aspect-ratio: 960 / 600;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03) inset,
    0 24px 80px rgba(0, 0, 0, 0.45),
    0 0 60px rgba(46, 230, 255, 0.08);
}

#game {
  display: block;
  width: 100%;
  height: 100%;
  background: #05070f;
}

.screen {
  position: absolute;
  inset: 0;
  display: flex;
  overflow-y: auto;
  background: rgba(5, 7, 15, 0.66);
  z-index: 5;
}
.screen > * { margin: auto; }

#menu {
  background:
    linear-gradient(180deg, rgba(5, 7, 15, 0.42), rgba(5, 7, 15, 0.72)),
    url("assets/bg-menu.jpg") center / cover no-repeat,
    #070b16;
}

.hidden { display: none !important; }

.menu-shell {
  width: min(860px, 94%);
  padding: 14px 8px 12px;
}

.hero { text-align: center; margin-bottom: 12px; }

.eyebrow {
  font-family: "Orbitron", sans-serif;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.hero h1 {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 50px);
  letter-spacing: 0.08em;
  line-height: 1;
  text-shadow: 0 0 28px rgba(46, 230, 255, 0.35);
}

.hero h1 span { color: var(--mag); }

.lede {
  margin-top: 6px;
  color: var(--muted);
  font-size: 17px;
  font-weight: 600;
}

.menu-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 14px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  backdrop-filter: blur(10px);
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.card h2 {
  font-family: "Orbitron", sans-serif;
  font-size: 14px;
  letter-spacing: 0.14em;
}

.meta, .fine, .hi { color: var(--muted); font-size: 13px; font-weight: 600; }

.camp-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 10px;
}

.camp-btn {
  text-align: left;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  cursor: pointer;
  font-family: inherit;
}

.camp-btn strong {
  display: block;
  font-family: "Orbitron", sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.camp-btn span { color: var(--muted); font-size: 12px; }

.camp-btn.selected {
  border-color: rgba(46, 230, 255, 0.45);
  background: rgba(46, 230, 255, 0.08);
}

.level-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 168px;
  overflow: auto;
}

.level-btn {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 10px;
  align-items: center;
  text-align: left;
  width: 100%;
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  cursor: pointer;
  font-family: inherit;
}

.level-btn:hover, .level-btn.selected {
  border-color: rgba(46, 230, 255, 0.45);
  background: rgba(46, 230, 255, 0.08);
}

.level-btn.cleared { box-shadow: inset 0 0 0 1px rgba(61, 255, 138, 0.25); }

.lvl-no {
  font-family: "Orbitron", sans-serif;
  font-size: 18px;
  color: var(--cyan);
}

.lvl-name { font-weight: 700; font-size: 16px; }
.lvl-sub { color: var(--muted); font-size: 13px; }
.lvl-diff {
  font-family: "Orbitron", sans-serif;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.howto { list-style: none; display: flex; flex-direction: column; gap: 7px; font-size: 15px; }
.howto li { display: flex; gap: 10px; align-items: baseline; line-height: 1.2; }
.howto kbd {
  display: inline-block;
  flex: 0 0 64px;
  min-width: 64px;
  font-family: "Orbitron", sans-serif;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.capsule-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 10px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

.capsule-legend span { display: flex; align-items: center; gap: 8px; }

.cap {
  width: 18px;
  height: 10px;
  border-radius: 99px;
  display: inline-block;
  box-shadow: 0 0 8px currentColor;
}

.cap.expand { background: #2ee6ff; color: #2ee6ff; }
.cap.multi { background: #d24dff; color: #d24dff; }
.cap.slow { background: #4d7cff; color: #4d7cff; }
.cap.laser { background: #ff3d9a; color: #ff3d9a; }
.cap.sticky { background: #3dff8a; color: #3dff8a; }
.cap.life { background: #ff3b5c; color: #ff3b5c; }
.cap.shrink { background: #ff2244; color: #ff2244; }
.cap.flip { background: #ff6b00; color: #ff6b00; }
.cap.rush { background: #ffd000; color: #ffd000; }

.hi { margin-top: 12px; }

.menu-actions { text-align: center; margin-top: 12px; }
.fine { margin-top: 8px; }

.btn {
  font-family: "Orbitron", sans-serif;
  letter-spacing: 0.16em;
  font-size: 13px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  min-width: 180px;
}

.btn.primary {
  background: linear-gradient(90deg, var(--cyan), #7cf0ff);
  color: #041018;
  box-shadow: 0 0 24px rgba(46, 230, 255, 0.35);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
  margin-top: 8px;
}

.btn.ad {
  background: linear-gradient(90deg, #ffc14d, #ffe08a);
  color: #2a1800;
  box-shadow: 0 0 24px rgba(255, 193, 77, 0.35);
  margin-bottom: 8px;
}

.btn.ad:disabled {
  opacity: 0.55;
  cursor: wait;
}

#ad-overlay { z-index: 8; }

.modal {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 32px;
  text-align: center;
  min-width: min(360px, 86%);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.modal h2 {
  font-family: "Orbitron", sans-serif;
  font-size: 28px;
  margin: 6px 0 10px;
}

.stats { color: var(--muted); margin-bottom: 16px; font-size: 16px; }

.rank-stamp {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: 52px;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--gold);
  text-shadow: 0 0 22px rgba(255, 193, 77, 0.55);
  margin-bottom: 4px;
}
.rank-stamp.S { color: #ffe08a; }
.rank-stamp.A { color: #2ee6ff; }
.rank-stamp.B { color: #3dff8a; }
.rank-stamp.C { color: #d24dff; }
.rank-stamp.D { color: #93a0c0; }

.banner-screen { background: transparent; pointer-events: none; }
.banner {
  text-align: center;
  text-shadow: 0 8px 28px #000;
  transform: translateY(-28px);
}
.banner h2 {
  font-family: "Orbitron", sans-serif;
  font-size: 36px;
  letter-spacing: 0.08em;
}

#toast {
  position: absolute;
  left: 50%;
  top: 74%;
  transform: translate(-50%, -50%);
  font-family: "Orbitron", sans-serif;
  font-size: 22px;
  letter-spacing: 0.16em;
  color: #fff;
  text-shadow: 0 0 18px rgba(46, 230, 255, 0.8);
  z-index: 4;
  pointer-events: none;
}

#buffs {
  position: absolute;
  left: 14px;
  bottom: 12px;
  display: flex;
  gap: 6px;
  z-index: 3;
  pointer-events: none;
}

.buff {
  font-family: "Orbitron", sans-serif;
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  border-radius: 99px;
  background: rgba(5, 7, 15, 0.7);
  border: 1px solid var(--line);
}

@media (max-width: 760px), (max-height: 560px) {
  .screen:not(.banner-screen) {
    position: fixed;
    z-index: 30;
  }
  .level-list { max-height: 220px; }
}

@media (max-width: 760px) {
  .menu-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  #topbar { flex-direction: column; align-items: flex-start; }
  #hud { justify-content: flex-start; }
}