:root {
  color-scheme: dark;

  --kr-bg-main: #02030a;
  --kr-bg-accent: #050819;
  --kr-neon-cyan: #00e0ff;
  --kr-neon-violet: #a855ff;
  --kr-text-main: #f5f7ff;
  --kr-text-muted: #9ca3af;
  --kr-border-subtle: rgba(148, 163, 184, 0.4);
  --kr-card-bg: rgba(10, 15, 35, 0.92);
  --kr-glass-border: rgba(148, 163, 184, 0.6);

  --kr-radius-xl: 1.75rem;
  --kr-radius-lg: 1.25rem;
  --kr-shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.9);

  /* For subtle 3D tilt */
  --kr-tilt-x: 0deg;
  --kr-tilt-y: 0deg;
  --kr-parallax-x: 0px;
  --kr-parallax-y: 0px;

  --kr-transition-fast: 150ms ease-out;
  --kr-transition-normal: 240ms ease;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--kr-text-main);
  background-color: var(--kr-bg-main);
  overflow: hidden;
}

/* Background layers */

.kr-background {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.kr-bg-gradient {
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(circle at 10% 10%, rgba(0, 224, 255, 0.3), transparent 55%),
    radial-gradient(circle at 90% 80%, rgba(168, 85, 255, 0.38), transparent 55%),
    radial-gradient(circle at 50% 30%, rgba(15, 23, 42, 0.9), transparent 70%);
  filter: blur(2px);
  animation: krBackgroundPulse 18s ease-in-out infinite alternate;
}

.kr-bg-noise {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
      45deg,
      rgba(15, 23, 42, 0.35) 0,
      rgba(15, 23, 42, 0.35) 1px,
      rgba(3, 7, 18, 0.35) 1px,
      rgba(3, 7, 18, 0.35) 2px
    );
  mix-blend-mode: soft-light;
  opacity: 0.35;
}

.kr-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.7) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.7) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  transform: translate3d(var(--kr-parallax-x), var(--kr-parallax-y), 0);
  transition: transform 300ms ease-out;
}

/* Dragon layer */

.kr-dragon-layer {
  position: fixed;
  inset: -10vh -10vw;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.kr-dragon {
  position: absolute;
  width: 40vw;
  max-width: 520px;
  min-width: 260px;
  filter:
    drop-shadow(0 0 20px rgba(0, 0, 0, 0.95))
    drop-shadow(0 0 28px rgba(0, 224, 255, 0.55));
  animation: krDragonFlight 28s linear infinite;
  transform-origin: center;
  opacity: 0.9;
  pointer-events: auto;
  cursor: pointer;
}


/* Dragon styling */

.kr-dragon-shape,
.kr-dragon-head,
.kr-dragon-horn,
.kr-dragon-wing {
  fill: #020617;
  stroke: url(#dragonGlow);
  stroke-width: 1.4;
}

.kr-dragon-wing {
  stroke-width: 1.2;
}

.kr-dragon-head {
  stroke-width: 1.3;
}

.kr-dragon-horn {
  stroke-width: 1;
}

.kr-dragon-eye {
  fill: #22d3ee;
  stroke: #e0f2fe;
  stroke-width: 0.5;
}

/* Wing flapping */

.kr-dragon-wing-left {
  transform-origin: 80px 32px;
  animation: krWingFlapLeft 1.5s ease-in-out infinite;
}

.kr-dragon-wing-right {
  transform-origin: 120px 32px;
  animation: krWingFlapRight 1.5s ease-in-out infinite;
}

/* Foreground page layout */

.kr-page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 3rem 1.5rem;
}

@media (min-width: 768px) {
  .kr-page {
    padding: 4rem 2.5rem;
  }
}

.kr-header {
  max-width: 960px;
  width: 100%;
  margin-bottom: 1.75rem;
  display: flex;
  justify-content: center;
}

.kr-logo {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(
      135deg,
      rgba(15, 23, 42, 0.5),
      rgba(15, 23, 42, 0.95)
    );
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow:
    0 0 40px rgba(15, 23, 42, 0.9),
    0 0 18px rgba(0, 224, 255, 0.25);
  backdrop-filter: blur(18px);
}

.kr-logo-ring {
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 30% 30%, rgba(148, 163, 184, 0.6), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(15, 23, 42, 0.9), #020617);
  box-shadow: 0 0 16px rgba(0, 224, 255, 0.5);
}

.kr-logo-symbol {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--kr-text-main);
  text-shadow: 0 0 10px rgba(0, 224, 255, 0.6);
}

.kr-logo-text h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.kr-logo-text p {
  margin: 0.1rem 0 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--kr-text-muted);
}

/* Main card */

.kr-card {
  max-width: 960px;
  width: 100%;
  padding: 2.25rem 1.75rem 2.3rem;
  border-radius: var(--kr-radius-xl);
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.12), transparent 50%),
              radial-gradient(circle at 100% 100%, rgba(56, 189, 248, 0.12), transparent 52%),
              rgba(15, 23, 42, 0.9);
  border: 1px solid var(--kr-glass-border);
  box-shadow: var(--kr-shadow-soft);
  backdrop-filter: blur(20px);
  transform:
    rotateX(var(--kr-tilt-x))
    rotateY(var(--kr-tilt-y))
    translate3d(0, 0, 0);
  transform-style: preserve-3d;
  transition:
    transform var(--kr-transition-normal),
    box-shadow var(--kr-transition-normal),
    border-color var(--kr-transition-normal),
    background 450ms ease-out;
}

@media (min-width: 768px) {
  .kr-card {
    padding: 2.75rem 3rem 3rem;
  }
}

.kr-card:hover {
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.95),
    0 0 40px rgba(56, 189, 248, 0.4);
  border-color: rgba(56, 189, 248, 0.7);
}

.kr-card h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kr-card p {
  margin-top: 0;
  color: var(--kr-text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.kr-card p strong {
  color: var(--kr-text-main);
}

/* Pills */

.kr-card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  margin: 1.6rem 0 1.9rem;
}

@media (min-width: 600px) {
  .kr-card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.kr-pill {
  border-radius: 999px;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.22), transparent 55%),
              rgba(15, 23, 42, 0.8);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.kr-pill-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--kr-text-muted);
}

.kr-pill-value {
  font-size: 0.9rem;
}

/* Subtext */

.kr-subtext {
  margin-top: 0;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

/* Buttons */

.kr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
}

.kr-btn {
  position: relative;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.65rem 1.4rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition:
    background-color var(--kr-transition-fast),
    border-color var(--kr-transition-fast),
    box-shadow var(--kr-transition-fast),
    transform var(--kr-transition-fast);
}

.kr-btn-primary {
  background: radial-gradient(circle at 0 0, #22d3ee, #0ea5e9);
  border-color: rgba(34, 211, 238, 0.9);
  color: #0b1120;
  box-shadow:
    0 14px 35px rgba(34, 211, 238, 0.7),
    0 0 18px rgba(34, 211, 238, 0.9);
}

.kr-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 18px 40px rgba(34, 211, 238, 0.9),
    0 0 28px rgba(56, 189, 248, 1);
}

.kr-btn-ghost {
  background-color: rgba(15, 23, 42, 0.7);
  border-color: rgba(148, 163, 184, 0.6);
  color: var(--kr-text-main);
}

.kr-btn-ghost:hover {
  background-color: rgba(15, 23, 42, 0.9);
  border-color: rgba(56, 189, 248, 0.8);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.95);
}

/* Footer */

.kr-footer {
  margin-top: 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--kr-text-muted);
}


/* Dragon HP HUD */

.kr-dragon-hud {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--kr-glass-border);
  box-shadow: var(--kr-shadow-soft);
  backdrop-filter: blur(14px);
}

.kr-dragon-hp-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--kr-text-muted);
}

.kr-dragon-hp-bar {
  width: 150px;
  height: 8px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.9);
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.7);
  overflow: hidden;
}

.kr-dragon-hp-fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--kr-neon-cyan), var(--kr-neon-violet));
  transition: width 120ms var(--kr-transition-fast);
}

.kr-dragon-hp-value {
  font-size: 0.8rem;
  color: var(--kr-text-main);
}

/* Dragon hit & death effects */

.kr-dragon-hit {
  filter:
    drop-shadow(0 0 26px rgba(248, 113, 113, 0.95))
    drop-shadow(0 0 32px rgba(239, 68, 68, 0.75));
}

/* Animations */

@keyframes krBackgroundPulse {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-2%, -1%, 0) scale(1.06);
  }
}

@keyframes krDragonFlight {
  0% {
    transform: translate(-40vw, 0vh) scale(1.05) rotate(8deg);
  }
  20% {
    transform: translate(10vw, -25vh) scale(1.1) rotate(-4deg);
  }
  40% {
    transform: translate(60vw, 50vh) scale(1.08) rotate(2deg);
  }
  60% {
    transform: translate(90vw, -15vh) scale(1.12) rotate(-6deg);
  }
  80% {
    transform: translate(30vw, 70vh) scale(1.04) rotate(3deg);
  }
  100% {
    transform: translate(120vw, 10vh) scale(1.02) rotate(0deg);
  }
}

@keyframes krDragonFall {
  0% {
    transform: translate(0, 0) scale(1) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(10vw, 100vh) scale(0.9) rotate(65deg);
    opacity: 0;
  }
}
@keyframes krWingFlapLeft {
  0%,
  100% {
    transform: rotateZ(6deg);
  }
  50% {
    transform: rotateZ(-8deg);
  }
}

@keyframes krWingFlapRight {
  0%,
  100% {
    transform: rotateZ(-6deg);
  }
  50% {
    transform: rotateZ(8deg);
  }
}

/* Reduced motion */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}