:root {
  --bg: #02030a;
  --fg: #f4f7ff;
  --muted: #aab3d6;
  --accent: #7aa2ff;
  --accent2: #ffb86b;
  --panel-bg: rgba(8, 11, 20, 0.76);
  --panel-border: rgba(255, 255, 255, 0.1);
  --hud-clearance: 84px;
  --font-display: "Aptos", "Segoe UI Variable", "Trebuchet MS", sans-serif;
  --font-mono: "Cascadia Code", "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  overflow: hidden;
}

* {
  box-sizing: border-box;
}

button,
input,
a {
  font: inherit;
}

button {
  appearance: none;
}

p,
ul {
  margin: 0;
}

.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;
}

#scene {
  position: fixed;
  inset: 0;
  display: block;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(1000px 600px at 50% -10%, rgba(122, 162, 255, 0.2), transparent 70%),
    radial-gradient(700px 500px at 10% 100%, rgba(255, 184, 107, 0.12), transparent 70%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 28%);
  z-index: 1;
}

.hud {
  position: fixed;
  inset: auto 16px 16px 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  pointer-events: none;
  z-index: 10;
}

.hud-side {
  display: flex;
  pointer-events: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  color: var(--fg);
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
  transition: transform 0.14s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn[aria-pressed="true"] {
  background: color-mix(in oklab, var(--accent) 18%, rgba(255, 255, 255, 0.06));
  border-color: color-mix(in oklab, var(--accent) 55%, rgba(255, 255, 255, 0.16));
}

.kbd {
  font-family: var(--font-mono);
  padding: 1px 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.28);
  color: var(--accent);
  font-size: 12px;
}

.terminal {
  position: fixed;
  inset: 40px 40px calc(var(--hud-clearance) + 24px) 40px;
  display: none;
  grid-template-rows: auto 1fr auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  z-index: 20;
}

.terminal.visible {
  display: grid;
}

.term-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 13px;
}

.term-title {
  margin-left: 6px;
}

.term-close {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: #ff5f56;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35) inset;
}

.term-close:hover {
  filter: brightness(1.08);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.yellow {
  background: #ffbd2e;
}

.dot.green {
  background: #27c93f;
}

.term-body {
  padding: 14px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.55;
}

.term-line {
  white-space: pre-wrap;
}

.term-input {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--fg);
  outline: none;
  font-family: var(--font-mono);
  font-size: 14px;
}

.term-echo-hint {
  color: #8c2626;
  font-style: italic;
  text-transform: lowercase;
  letter-spacing: 0.18em;
  opacity: 0.9;
}

.term-echo-hint.glitch-active {
  text-shadow: 0 0 2px rgba(255, 120, 120, 0.7), 0 0 6px rgba(120, 0, 0, 0.7);
}

.more-panel {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.98);
  opacity: 0;
  pointer-events: none;
  width: min(760px, 92vw);
  border: 1px solid var(--panel-border);
  border-radius: 22px;
  background:
    radial-gradient(1000px 600px at 50% 0%, rgba(122, 162, 255, 0.18), transparent 70%),
    var(--panel-bg);
  backdrop-filter: blur(14px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  transition: opacity 0.35s ease, transform 0.35s ease;
  z-index: 30;
}

.more-panel.visible {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.more-panel header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.panel-eyebrow {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.panel-title {
  margin-top: 4px;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
}

.secret-close {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: var(--fg);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease;
}

.secret-close:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
}

.secret-close svg {
  width: 14px;
  height: 14px;
}

.more-panel .content {
  padding: 18px 22px 22px;
  display: grid;
  gap: 14px;
}

.panel-copy,
.achievements-summary {
  color: var(--muted);
  font-size: 14px;
}

.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.achievement-card {
  position: relative;
  min-height: 150px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 0.18s ease, opacity 0.18s ease, border-color 0.18s ease;
}

.achievement-card:hover {
  transform: translateY(-2px);
}

.achievement-card.is-locked {
  opacity: 0.5;
  filter: grayscale(1) saturate(0.25);
}

.achievement-card.is-unlocked {
  border-color: color-mix(in oklab, var(--achievement-accent) 48%, rgba(255, 255, 255, 0.12));
}

.achievement-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.achievement-icon {
  --achievement-accent: var(--accent);
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(145deg, color-mix(in oklab, var(--achievement-accent) 54%, white), color-mix(in oklab, var(--achievement-accent) 74%, black)),
    rgba(255, 255, 255, 0.08);
  color: #02030a;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.26);
}

.achievement-title {
  font-size: 15px;
  font-weight: 700;
}

.achievement-status {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.achievement-description {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--hud-clearance) + 18px);
  transform: translateX(-50%);
  max-width: min(92vw, 560px);
  text-align: center;
  background: rgba(0, 0, 0, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #d8e2ff;
  padding: 10px 14px;
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.24s ease;
  z-index: 40;
  pointer-events: none;
  user-select: none;
}

.toast.show {
  opacity: 1;
}

.achievement-feed {
  position: fixed;
  right: 16px;
  bottom: calc(var(--hud-clearance) + 18px);
  width: min(340px, calc(100vw - 32px));
  display: grid;
  gap: 10px;
  pointer-events: none;
  z-index: 45;
}

.achievement-toast {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(6, 8, 16, 0.9);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateX(20px) translateY(10px);
  transition: opacity 0.26s ease, transform 0.26s ease;
}

.achievement-toast.is-visible {
  opacity: 1;
  transform: translateX(0) translateY(0);
}

.achievement-toast.is-hiding {
  opacity: 0;
  transform: translateX(24px) translateY(8px);
}

.achievement-toast-copy {
  display: grid;
  gap: 3px;
}

.achievement-toast-label {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.achievement-toast-title {
  font-size: 15px;
  font-weight: 700;
}

.achievement-toast-description {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

#echoCode {
  display: none;
}

@media (max-width: 700px) {
  .hud {
    inset: auto 10px 10px 10px;
  }

  .terminal {
    inset: 10px 10px calc(var(--hud-clearance) + 12px) 10px;
  }

  .more-panel {
    width: min(94vw, 760px);
  }

  .more-panel header,
  .more-panel .content {
    padding-left: 16px;
    padding-right: 16px;
  }

  .achievement-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .achievement-feed {
    right: 10px;
    width: min(320px, calc(100vw - 20px));
  }
}