:root {
  color-scheme: dark;
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #070b10;
  --bg-gradient: radial-gradient(circle at 25% 20%, rgba(242, 193, 79, 0.15), transparent 55%),
    radial-gradient(circle at 75% 10%, rgba(86, 193, 142, 0.14), transparent 50%);
  --panel: rgba(9, 14, 24, 0.92);
  --panel-alt: rgba(10, 17, 27, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f5fbff;
  --muted: #9cb0c1;
  --accent: #f2c14f;
  --accent-soft: rgba(242, 193, 79, 0.18);
  --danger: #ff6b6b;
  --accent-warm: #ffbd59;
  --accent-cool: #42d9ff;
  --focus: #f7f372;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-gradient), var(--bg);
  color: var(--text);
  padding: 2rem clamp(1.25rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Site Navigation */
.site-nav {
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(14, 18, 43, 0.9);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 0.65rem 1rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  gap: 1rem;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-warm), var(--accent-cool));
  box-shadow: 0 0 14px rgba(255, 189, 89, 0.7);
}

.nav-title {
  color: #fff;
}

.site-nav nav {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  padding: 0.55rem 0.9rem;
  border-radius: 12px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
  cursor: pointer;
}

.nav-link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn.patreon {
  border: none;
  background: linear-gradient(120deg, #ff4e6a, #ff9557);
  color: #fff8f3;
  box-shadow: 0 20px 35px rgba(255, 115, 123, 0.35);
  position: relative;
  overflow: hidden;
  gap: 0.35rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  transition: transform 150ms ease, box-shadow 150ms ease;
  cursor: pointer;
}

.btn.patreon::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.35), transparent 60%);
  opacity: 0;
  transition: opacity 200ms ease;
}

.btn.patreon:hover::after,
.btn.patreon:focus-visible::after {
  opacity: 1;
}

.btn.patreon:hover {
  transform: translateY(-3px) scale(1.02);
}

.nav-patreon {
  box-shadow: 0 14px 26px rgba(255, 115, 123, 0.3);
}

.nav-patreon:hover {
  transform: translateY(-2px);
}

.game-header {
  background: var(--panel);
  border-radius: 20px;
  padding: clamp(1.25rem, 3vw, 2rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: center;
  border: 1px solid var(--border);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

.eyebrow {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  color: var(--muted);
}

.game-header h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
}

.summary {
  margin: 0.75rem 0 0;
  color: var(--muted);
  line-height: 1.5;
  max-width: 48ch;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.feedback-button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  padding: 0.4rem 1.2rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease;
}

.feedback-button:hover,
.feedback-button:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.feedback-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(5, 7, 15, 0.8);
  z-index: 50;
}

.feedback-modal.open {
  display: flex;
}

.feedback-modal .modal-panel {
  background: var(--panel);
  border-radius: 24px;
  border: 1px solid var(--border);
  padding: 1.5rem;
  width: min(420px, calc(100% - 2rem));
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 1.25rem;
  cursor: pointer;
}

.feedback-modal form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.feedback-modal label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--muted);
}

.feedback-modal input,
.feedback-modal textarea {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.feedback-modal textarea {
  resize: vertical;
}

.feedback-modal button[type="submit"] {
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  background: var(--accent);
  color: #041316;
  cursor: pointer;
  align-self: flex-start;
}

.feedback-status {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
  min-height: 1.5rem;
}

.game-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(240px, 300px);
  gap: 1.5rem;
  align-items: start;
}

.canvas-shell {
  position: relative;
  background: var(--panel);
  border-radius: 20px;
  padding: 1rem;
  border: 1px solid var(--border);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5);
  min-height: 640px;
  height: clamp(640px, 75vh, 840px);
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 0.85rem;
}

.challenge-area {
  position: relative;
  height: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1.5rem 1rem 1.5rem;
  background: linear-gradient(180deg, rgba(11, 21, 14, 0.9), rgba(11, 18, 24, 0.9));
  display: grid;
  gap: 1rem;
  grid-template-rows: 1fr;
  align-content: stretch;
  overflow: hidden;
  --field-shift: 0px;
}

.top-hud {
  display: grid;
  gap: 0.65rem;
  background: rgba(9, 14, 24, 0.9);
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4);
}

.top-hud-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
}

.top-hud .hud {
  flex: 1;
}

.challenge-area::before,
.challenge-area::after {
  content: "";
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  height: 42px;
  background: repeating-linear-gradient(
      45deg,
      rgba(81, 148, 88, 0.16),
      rgba(81, 148, 88, 0.16) 12px,
      rgba(139, 93, 49, 0.16) 12px,
      rgba(139, 93, 49, 0.16) 24px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  filter: blur(0.3px);
  pointer-events: none;
  background-position: var(--field-shift) 0, var(--field-shift) 0;
  background-repeat: repeat-x, repeat-x;
  background-size: 220px 100%, auto;
  z-index: 0;
}

.challenge-area::before {
  top: 0.75rem;
}

.challenge-area::after {
  bottom: 0.75rem;
  top: auto;
}

.progress-track {
  position: relative;
  height: 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #57f287, #f2c14f);
  border-radius: inherit;
  transition: width 120ms ease;
}

.progress-label {
  position: absolute;
  inset: auto 1rem -1.6rem auto;
  font-size: 0.85rem;
  color: var(--muted);
}

.progress-readout {
  position: absolute;
  top: -1.6rem;
  right: 0.75rem;
  font-size: 0.9rem;
  color: var(--text);
  background: rgba(9, 14, 24, 0.8);
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hud {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hud-pill {
  background: var(--accent-soft);
  border: 1px solid rgba(242, 193, 79, 0.35);
  color: var(--text);
  border-radius: 12px;
  padding: 0.7rem 1rem;
  display: grid;
  gap: 0.25rem;
  min-width: 120px;
}

.hud-pill .label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--muted);
}

.hud-pill span:last-child {
  font-weight: 700;
  font-size: 1.2rem;
}

.action-hint {
  display: none;
}

.action-hint p {
  display: none;
}

.lanes {
  display: grid;
  gap: 0.65rem;
  margin-top: 0.25rem;
  position: relative;
  z-index: 1;
  grid-template-rows: repeat(3, 1fr);
  height: 100%;
  --field-shift: 0px;
}

.lane {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 0.85rem 0.85rem 0.65rem;
  display: grid;
  gap: 0.35rem;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
  min-height: 96px;
}

.lane-label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.lane-track {
  position: relative;
  height: 48px;
  background: linear-gradient(90deg, rgba(139, 93, 49, 0.14), rgba(81, 148, 88, 0.14));
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background-size: 160px 100%;
  background-repeat: repeat-x;
  background-position: var(--field-shift) 0;
}

.runner {
  position: absolute;
  top: 50%;
  left: 8%;
  transform: translate(-50%, -50%);
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: linear-gradient(135deg, #f2c14f, #57f287);
  box-shadow: 0 0 12px rgba(242, 193, 79, 0.55);
}

.enemy {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(145deg, #ff6b6b, #f98686);
  box-shadow: 0 0 14px rgba(255, 107, 107, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.enemy.is-elite {
  background: linear-gradient(145deg, #ff9f1c, #f25c54);
  box-shadow: 0 0 16px rgba(255, 159, 28, 0.5);
}

.lane-track::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 8px;
  border: 1px dashed rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.runner.is-hero {
  background: linear-gradient(145deg, #57f287, #42d9ff);
  box-shadow: 0 0 14px rgba(87, 242, 135, 0.55), 0 0 18px rgba(66, 217, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.axe {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-8deg);
  width: 22px;
  height: 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, #f2c14f, #ffd87a);
  box-shadow: 0 0 14px rgba(242, 193, 79, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: wobble 260ms ease-in-out infinite alternate;
}

@keyframes wobble {
  from {
    transform: translate(-50%, -50%) rotate(-10deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(12deg);
  }
}

.overlay {
  position: absolute;
  inset: 1rem;
  border-radius: 18px;
  background: rgba(7, 10, 17, 0.88);
  display: grid;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  z-index: 5;
}

.overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.overlay-content {
  display: grid;
  gap: 1rem;
  justify-items: center;
  max-width: 760px;
}

.overlay-figure {
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.overlay-figure img {
  width: min(720px, 100%);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.55);
}

.overlay-figure figcaption {
  color: var(--muted);
  font-size: 0.95rem;
}

.overlay-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

.overlay-content p {
  margin: 0 0 1.5rem;
  color: var(--muted);
  line-height: 1.5;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn.primary {
  background: var(--accent);
  color: #2b220f;
  box-shadow: 0 10px 25px rgba(242, 193, 79, 0.35);
}

.btn.primary:hover,
.btn.primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(242, 193, 79, 0.45);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.side-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  background: var(--panel-alt);
  border-radius: 18px;
  padding: 1.2rem;
  border: 1px solid var(--border);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.card p {
  margin: 0;
  color: var(--text);
  line-height: 1.5;
}

.threat {
  color: var(--danger);
  font-weight: 700;
}

@media (max-width: 900px) {
  body {
    padding: 1.5rem;
  }

  .game-layout {
    grid-template-columns: 1fr;
  }

  .canvas-shell {
    height: clamp(360px, 55vh, 520px);
  }
}