:root {
  --bg: #050711;
  --panel: rgba(10, 13, 26, .82);
  --line: rgba(255,255,255,.13);
  --muted: #aeb9d8;
  --green: #52ff9c;
  --green2: #16d66b;
  --yellow: #ffe45e;
  --blue: #53b7ff;
  --red: #ff4d6d;
  --white: #f7fbff;
  --shadow: #00040a;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--white);
  background:
    radial-gradient(circle at 20% 0%, rgba(82, 255, 156, .12), transparent 28rem),
    radial-gradient(circle at 85% 16%, rgba(83, 183, 255, .14), transparent 30rem),
    #050711;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: 100%;
  margin: 0 auto 36px;
  display: grid;
  gap: 18px;
}

.panel,
.leaderboard-panel,
.ideas,
.results,
.game-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 18, 35, .92), rgba(7, 9, 18, .94));
  box-shadow: 0 22px 70px rgba(0,0,0,.36);
  border-radius: 26px;
  padding: 22px;
}

.landing {
  min-height: 100vh;
  width: 100%;
  position: relative;
  overflow: hidden;
  border-radius: 0;
  border: 0;
  background: #050711;
  box-shadow: none;
  isolation: isolate;
}

.hero-video-wrap,
.hero-video,
.hero-shade {
  position: absolute;
  inset: 0;
}
.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.1) contrast(1.04) brightness(.68);
  transform: none;
}
.hero-shade {
  background:
    linear-gradient(90deg, rgba(3,5,10,.92) 0%, rgba(3,5,10,.68) 42%, rgba(3,5,10,.26) 100%),
    linear-gradient(180deg, rgba(3,5,10,.44) 0%, rgba(3,5,10,.14) 48%, rgba(3,5,10,.86) 100%);
}
.hero-shade::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 100% 4px;
  opacity: .38;
  mix-blend-mode: overlay;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 28px clamp(20px, 5vw, 70px);
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
  color: #fff;
  font-weight: 950;
  letter-spacing: -.04em;
  font-size: clamp(18px, 2.5vw, 28px);
  text-shadow: 0 8px 32px rgba(0,0,0,.65);
}
.nav-pills { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.nav-pills span {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: rgba(255,255,255,.82);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
  backdrop-filter: none;
  text-shadow: 0 4px 20px rgba(0,0,0,.85);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: end;
  padding: clamp(24px, 6vw, 82px);
}
.hero-copy { max-width: 760px; padding-bottom: 26px; }
.eyebrow {
  width: max-content;
  max-width: 100%;
  margin-bottom: 18px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
  text-shadow: 0 5px 24px rgba(0,0,0,.9);
}
h1 {
  margin: 0 0 16px;
  max-width: 770px;
  font-size: clamp(58px, 9vw, 118px);
  line-height: .86;
  letter-spacing: -.085em;
  color: var(--white);
  text-wrap: balance;
  text-shadow: 0 10px 40px rgba(0,0,0,.65);
}
.subtitle {
  max-width: 660px;
  margin: 0 0 26px;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.45;
  color: #d1dcf7;
  text-shadow: 0 4px 20px rgba(0,0,0,.8);
}
.hero-actions,
.name-row,
.score-submit {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.hero-actions input,
.score-submit input {
  min-width: min(100%, 210px);
  border: 1px solid rgba(255,255,255,.28);
  background: rgba(5,8,16,.36);
  color: var(--white);
  border-radius: 16px;
  padding: 16px 15px;
  font: 800 15px/1 Inter, system-ui, sans-serif;
  outline: none;
  backdrop-filter: blur(8px);
}
.hero-actions input:focus,
.score-submit input:focus { border-color: rgba(82,255,156,.78); box-shadow: 0 0 0 4px rgba(82,255,156,.1); }
.play-btn {
  cursor: pointer;
  border: 0;
  padding: 17px 24px;
  color: #041109;
  background: linear-gradient(180deg, var(--green), var(--green2));
  font: 950 15px/1 Inter, system-ui, sans-serif;
  letter-spacing: .04em;
  border-radius: 16px;
  box-shadow: 0 14px 32px rgba(22,214,107,.28), inset 0 1px 0 rgba(255,255,255,.35);
  transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.play-btn:hover { transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 18px 42px rgba(22,214,107,.34); }
.play-btn:active { transform: translateY(1px); }
.contract-strip {
  width: min(100%, 720px);
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: rgba(255,255,255,.9);
  text-shadow: 0 4px 18px rgba(0,0,0,.85);
}
.contract-strip span {
  color: var(--green);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .16em;
}
.contract-strip code {
  max-width: min(100%, 450px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font: 800 13px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: rgba(255,255,255,.9);
}
.contract-strip button,
.contract-strip a {
  appearance: none;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  color: #fff;
  padding: 8px 11px;
  font: 900 11px/1 Inter, system-ui, sans-serif;
  letter-spacing: .08em;
  text-decoration: none;
  backdrop-filter: blur(8px);
}
.contract-strip a {
  border-color: rgba(82,255,156,.58);
  background: rgba(82,255,156,.14);
  color: var(--green);
}
.contract-strip button:hover,
.contract-strip a:hover { transform: translateY(-1px); }
.controls {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  color: #c8d5ff;
  font-size: 13px;
}
.controls span {
  border: 0;
  border-radius: 0;
  padding: 8px 10px;
  background: transparent;
  backdrop-filter: none;
  text-shadow: 0 4px 18px rgba(0,0,0,.9);
}

.hidden { display: none !important; }
.game-panel { padding: 12px; }
.hud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}
.hud div {
  background: rgba(5,8,16,.92);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 16px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.hud span { color: #8fa1eb; font-size: 12px; }
.hud strong { color: var(--yellow); font-size: 20px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 20px;
  background: #060711;
  image-rendering: pixelated;
}
.mobile-controls {
  margin-top: 10px;
  display: none;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.mobile-controls button,
.score-submit button {
  cursor: pointer;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(17, 22, 51, .88);
  color: #fff;
  border-radius: 14px;
  padding: 12px 10px;
  font: 850 13px Inter, system-ui, sans-serif;
}
.mobile-controls #beamBtn { background: rgba(82,255,156,.15); color: var(--green); }

.results { text-align: center; }
.results h2,
.section-title-row h2,
.ideas h2 { margin: 0; color: #fff; letter-spacing: -.04em; }
.results h2 { font-size: 40px; }
.results p { color: #cbd6ff; font-size: 18px; }
.score-submit { justify-content: center; margin: 16px 0 22px; }
.score-submit button:hover { color: var(--green); border-color: rgba(82,255,156,.55); }

.section-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.section-title-row span { color: #8fa1eb; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.leaderboard-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.leaderboard-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3px 10px;
  align-items: center;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(5,8,16,.64);
  border-radius: 16px;
  padding: 13px;
}
.leaderboard-list strong { color: var(--green); }
.leaderboard-list span { color: #c8d5ff; font-size: 13px; }
.leaderboard-list em {
  grid-row: 1 / span 2;
  grid-column: 2;
  color: #041109;
  background: var(--yellow);
  border-radius: 999px;
  padding: 7px 9px;
  font-style: normal;
  font-weight: 900;
  font-size: 12px;
}
.small-note { color: #93a4e8; font-size: 12px; line-height: 1.45; margin: 12px 0 0; }
.idea-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 14px; }
.idea-grid article {
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(5,8,16,.58);
  border-radius: 18px;
  padding: 16px;
}
.idea-grid strong { display: block; color: var(--green); margin-bottom: 8px; }
.idea-grid span { color: #d6ddff; line-height: 1.45; font-size: 13px; }

@media (max-width: 760px) {
  .shell { width: 100%; margin-top: 0; }
  .landing { min-height: 100vh; border-radius: 0; }
  .topbar { align-items: flex-start; flex-direction: column; padding: 16px; }
  .hero-content { grid-template-columns: 1fr; padding: 18px; align-items: end; }
  .hero-copy { padding-bottom: 0; }
  h1 { font-size: clamp(52px, 18vw, 82px); }
  .subtitle { font-size: 17px; }
  .prize-grid { grid-template-columns: 1fr; }
  .hud { grid-template-columns: repeat(2, 1fr); }
  .mobile-controls { display: grid; }
  .idea-grid { grid-template-columns: 1fr; }
  .leaderboard-list li { grid-template-columns: 1fr; }
  .leaderboard-list em { grid-row: auto; grid-column: auto; width: max-content; }
}

@media (min-width: 761px) and (max-width: 1000px) {
  .hero-content { grid-template-columns: 1fr; }
  .idea-grid { grid-template-columns: repeat(2, 1fr); }
}