/* === NodeFeet — Dark Arcade / Neon Glow Theme === */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Exo+2:wght@300;400;600;700&display=swap');

/* === CSS Reset === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* === Theme Variables === */
:root {
  /* Core palette */
  --bg-deep: #06061a;
  --bg-surface: #0d0d2b;
  --bg-card: #131340;
  --bg-card-hover: #1a1a52;
  --border-subtle: rgba(120, 100, 255, 0.15);
  --border-glow: rgba(120, 100, 255, 0.4);

  /* Text */
  --text-primary: #e8e6f0;
  --text-secondary: #9994b8;
  --text-muted: #5c5680;

  /* Neon accents */
  --neon-blue: #4df0ff;
  --neon-pink: #ff3cac;
  --neon-green: #39ff7f;
  --neon-yellow: #ffe14d;
  --neon-purple: #a855f7;
  --neon-orange: #ff6a3d;

  /* Type colors */
  --type-electric: #ffd740;
  --type-fighting: #c62828;
  --type-grass: #43a047;
  --type-flying: #90caf9;
  --type-dark: #4a148c;
  --type-water: #1e88e5;
  --type-fire: #ef6c00;
  --type-rock: #8d6e63;
  --type-poison: #9c27b0;
  --type-steel: #90a4ae;
  --type-psychic: #e91e90;
  --type-dragon: #6a1b9a;

  /* Bars */
  --hp-high: #39ff7f;
  --hp-mid: #ffe14d;
  --hp-low: #ff3c3c;
  --mp-fill: #4df0ff;

  /* Spacing */
  --gap-xs: 4px;
  --gap-sm: 8px;
  --gap-md: 16px;
  --gap-lg: 24px;
  --gap-xl: 40px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Fonts */
  --font-display: 'Orbitron', monospace, sans-serif;
  --font-body: 'Exo 2', system-ui, sans-serif;
}

/* === Base === */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--neon-blue);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--neon-pink);
}

img {
  max-width: 100%;
  height: auto;
}

/* === Shared Navigation === */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-lg);
  padding: var(--gap-md) var(--gap-lg);
  background: rgba(6, 6, 26, 0.85);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.site-nav a {
  color: var(--text-secondary);
  padding: var(--gap-sm) var(--gap-md);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--neon-blue);
  background: rgba(77, 240, 255, 0.08);
}

.nav-current {
  color: var(--text-muted);
  padding: var(--gap-sm) var(--gap-md);
  font-size: 0.8rem;
}

.coin-count {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-xs);
  color: var(--neon-yellow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
}
.coin-count::before {
  content: '◉';
  font-size: 1.1em;
}

/* === Sprite System — Individual sprite images === */
.foot-sprite {
  width: 120px;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  object-fit: contain;
  flex-shrink: 0;
}

.foot-sprite-sm {
  width: 64px;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  object-fit: contain;
}

.foot-sprite-lg {
  width: 160px;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  object-fit: contain;
}

.sprite-silhouette {
  filter: brightness(0) saturate(0);
  opacity: 0.35;
}

/* === Card Grid (Catalog / Collection) === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--gap-md);
  padding: var(--gap-md);
  padding-bottom: 80px; /* room for fixed nav */
}

.foot-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-sm);
  cursor: pointer;
  transition: transform 0.2s, border-color 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}
.foot-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 8px 32px rgba(120, 100, 255, 0.15);
}
.foot-card.locked {
  opacity: 0.6;
}
.foot-card.locked:hover {
  opacity: 0.8;
}
.foot-card.owned {
  border-color: var(--neon-green);
  box-shadow: 0 0 12px rgba(57, 255, 127, 0.1);
}
.foot-card.selected {
  border-color: var(--neon-blue);
  box-shadow: 0 0 20px rgba(77, 240, 255, 0.2);
}

.foot-card-name {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.05em;
}

/* === Type Badge === */
.type-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.type-badge[data-type="electric"] { background: var(--type-electric); color: #1a1a00; }
.type-badge[data-type="fighting"] { background: var(--type-fighting); }
.type-badge[data-type="grass"]    { background: var(--type-grass); }
.type-badge[data-type="flying"]   { background: var(--type-flying); color: #0a1a2a; }
.type-badge[data-type="dark"]     { background: var(--type-dark); }
.type-badge[data-type="water"]    { background: var(--type-water); }
.type-badge[data-type="fire"]     { background: var(--type-fire); }
.type-badge[data-type="rock"]     { background: var(--type-rock); }
.type-badge[data-type="poison"]   { background: var(--type-poison); }
.type-badge[data-type="steel"]    { background: var(--type-steel); color: #1a1a2a; }
.type-badge[data-type="psychic"]  { background: var(--type-psychic); }
.type-badge[data-type="dragon"]   { background: var(--type-dragon); }

/* === Rarity Indicator === */
.rarity-badge {
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.rarity-badge[data-rarity="common"]   { color: var(--text-secondary); }
.rarity-badge[data-rarity="uncommon"] { color: var(--neon-green); }
.rarity-badge[data-rarity="rare"]     { color: var(--neon-yellow); text-shadow: 0 0 6px rgba(255, 225, 77, 0.4); }

/* === Unlock Cost === */
.unlock-cost {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--neon-yellow);
  display: flex;
  align-items: center;
  gap: var(--gap-xs);
}
.unlock-cost::before {
  content: '◉';
  font-size: 0.8em;
}

/* === HP / MP Bars === */
.bar-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
}

.bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.5s ease-out;
  position: relative;
}
.bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.25) 0%, transparent 60%);
  border-radius: inherit;
}

.hp-bar .bar-fill {
  background: var(--hp-high);
  box-shadow: 0 0 8px rgba(57, 255, 127, 0.3);
}
.hp-bar .bar-fill.mid {
  background: var(--hp-mid);
  box-shadow: 0 0 8px rgba(255, 225, 77, 0.3);
}
.hp-bar .bar-fill.low {
  background: var(--hp-low);
  box-shadow: 0 0 8px rgba(255, 60, 60, 0.4);
}

.mp-bar .bar-fill {
  background: var(--mp-fill);
  box-shadow: 0 0 8px rgba(77, 240, 255, 0.3);
}

.bar-label {
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}
.combatant .bar-label {
  font-size: 0.6rem;
  color: var(--text-primary);
  font-weight: 700;
}

/* === XP Progress Bar === */
.xp-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
  width: 100%;
}
.xp-bar .bar-fill {
  height: 100%;
  background: var(--neon-purple);
  box-shadow: 0 0 6px rgba(168, 85, 247, 0.3);
  border-radius: 999px;
  transition: width 0.5s ease-out;
}

/* === Buttons === */
.btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--gap-sm) var(--gap-lg);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 60, 172, 0.3);
}
.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(255, 60, 172, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
}

/* === FIGHT NOW — Hero CTA === */
.fight-btn {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.4rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, #ff3cac, #ff6a3d, #ffe14d);
  background-size: 200% 200%;
  animation: gradient-shift 3s ease infinite;
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--gap-md) var(--gap-xl);
  cursor: pointer;
  position: relative;
  box-shadow:
    0 0 30px rgba(255, 60, 172, 0.4),
    0 0 60px rgba(255, 60, 172, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: transform 0.2s, box-shadow 0.3s;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}
.fight-btn:hover {
  transform: scale(1.05);
  box-shadow:
    0 0 40px rgba(255, 60, 172, 0.5),
    0 0 80px rgba(255, 60, 172, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}
.fight-btn:active {
  transform: scale(0.97);
}
.fight-btn::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(135deg, #ff3cac, #ff6a3d, #ffe14d);
  background-size: 200% 200%;
  animation: gradient-shift 3s ease infinite;
  z-index: -1;
  filter: blur(12px);
  opacity: 0.5;
}

/* === Skill Buttons (Battle) === */
.skill-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-sm);
  padding: var(--gap-md);
}

.skill-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--gap-sm) var(--gap-md);
  cursor: pointer;
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  position: relative;
}
.skill-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}
.skill-btn:active:not(:disabled) {
  transform: scale(0.96);
}
.skill-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.skill-btn .skill-name {
  font-size: 0.75rem;
}
.skill-btn .skill-cost {
  font-size: 0.55rem;
  color: var(--mp-fill);
  opacity: 0.8;
}

/* Skill button type border colors */
.skill-btn[data-type="electric"] { border-color: var(--type-electric); }
.skill-btn[data-type="fighting"] { border-color: var(--type-fighting); }
.skill-btn[data-type="grass"]    { border-color: var(--type-grass); }
.skill-btn[data-type="flying"]   { border-color: var(--type-flying); }
.skill-btn[data-type="dark"]     { border-color: var(--type-dark); }
.skill-btn[data-type="water"]    { border-color: var(--type-water); }
.skill-btn[data-type="fire"]     { border-color: var(--type-fire); }
.skill-btn[data-type="rock"]     { border-color: var(--type-rock); }
.skill-btn[data-type="poison"]   { border-color: var(--type-poison); }
.skill-btn[data-type="steel"]    { border-color: var(--type-steel); }
.skill-btn[data-type="psychic"]  { border-color: var(--type-psychic); }
.skill-btn[data-type="dragon"]   { border-color: var(--type-dragon); }

/* === Landing Page === */
.landing-bg {
  min-height: 100dvh;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.landing-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(6, 6, 26, 0.3) 0%,
    rgba(6, 6, 26, 0.1) 40%,
    rgba(6, 6, 26, 0.5) 80%,
    rgba(6, 6, 26, 0.9) 100%
  );
  pointer-events: none;
}

.landing-header {
  position: relative;
  z-index: 1;
  padding-top: var(--gap-xl);
}
.landing-logo {
  width: clamp(180px, 50vw, 320px);
  height: auto;
  filter: drop-shadow(0 4px 20px rgba(255, 60, 172, 0.3));
}

.landing-main {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-lg);
}

.selected-foot-preview {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-sm);
}
.selected-foot-preview .foot-sprite-lg {
  filter: drop-shadow(0 4px 16px rgba(77, 240, 255, 0.3));
  animation: float 3s ease-in-out infinite;
}
.selected-foot-preview .foot-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--neon-blue);
  text-shadow: 0 0 12px rgba(77, 240, 255, 0.3);
}

.landing-nav {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--gap-lg);
  padding: var(--gap-lg);
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.landing-nav a {
  color: var(--text-secondary);
  transition: color 0.2s;
}
.landing-nav a:hover {
  color: var(--neon-blue);
}

/* === Foot Swap Drawer === */
.foot-drawer {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
  justify-content: center;
  max-width: 360px;
  padding: var(--gap-md);
  background: rgba(6, 6, 26, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  animation: slide-up 0.2s ease;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  padding: var(--gap-sm) var(--gap-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  width: 100%;
}
.drawer-item:hover:not(.selected) {
  border-color: var(--border-glow);
  transform: translateX(4px);
}
.drawer-item.selected {
  border-color: var(--neon-blue);
  cursor: default;
}
.drawer-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.drawer-item-name {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.drawer-item-level {
  font-family: var(--font-display);
  font-size: 0.55rem;
  color: var(--neon-blue);
}

.matchmaking-status {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--neon-blue);
  animation: pulse 1.5s ease-in-out infinite;
}

/* === Battle Page === */
.battle-page {
  height: 100dvh;
  overflow: hidden;
}

.arena {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  display: grid;
  grid-template-rows: 1fr auto auto;
  grid-template-columns: 1fr;
  position: relative;
}
.arena::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(6, 6, 26, 0.2) 0%,
    transparent 30%,
    transparent 60%,
    rgba(6, 6, 26, 0.6) 100%
  );
  pointer-events: none;
}

.combatant {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
}
.combatant-name {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.combatant.opponent {
  top: 12%;
  right: 8%;
  align-items: flex-end;
}
.combatant.opponent .bar-group {
  width: 140px;
}

.combatant.player {
  bottom: 34%;
  left: 8%;
  align-items: flex-start;
}
.combatant.player .bar-group {
  width: 140px;
}

.skill-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
  background: rgba(6, 6, 26, 0.92);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-subtle);
}

.turn-log {
  position: absolute;
  bottom: 130px;
  left: 0;
  right: 0;
  z-index: 3;
  max-height: 80px;
  overflow-y: auto;
  font-family: var(--font-body);
  font-size: 0.65rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: rgba(6, 6, 26, 0.75);
  backdrop-filter: blur(6px);
  padding: 4px var(--gap-sm);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) transparent;
  pointer-events: none;
}
.turn-log::-webkit-scrollbar { width: 4px; }
.turn-log::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }
.turn-log:empty { display: none; }

.turn-log .log-entry {
  padding: 1px 0;
}
.turn-log .super-effective {
  color: var(--neon-yellow);
  font-weight: 600;
}
.turn-log .not-effective {
  color: var(--text-muted);
}

.turn-timer {
  position: absolute;
  top: var(--gap-md);
  right: var(--gap-md);
  z-index: 3;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text-primary);
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}
.turn-timer.urgent {
  color: var(--hp-low);
  animation: pulse 0.5s ease-in-out infinite;
}

/* === Post-Battle Overlay === */
.post-battle {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-lg);
  background: rgba(6, 6, 26, 0.92);
  backdrop-filter: blur(16px);
  animation: fade-in 0.5s ease;
}
.post-battle h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.post-battle h2.victory {
  color: var(--neon-green);
  text-shadow: 0 0 30px rgba(57, 255, 127, 0.4);
}
.post-battle h2.defeat {
  color: var(--hp-low);
  text-shadow: 0 0 30px rgba(255, 60, 60, 0.4);
}
.post-battle .reward-text {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
}
.post-battle .reward-text .coins {
  color: var(--neon-yellow);
  font-weight: 600;
}
.post-battle .reward-text .xp {
  color: var(--neon-purple);
  font-weight: 600;
}

/* === Status Effect Icons === */
.status-icon {
  display: inline-block;
  font-size: 0.7rem;
  margin-left: var(--gap-xs);
}
.status-icon.poison {
  color: var(--type-poison);
}
.status-icon.stun {
  color: var(--neon-yellow);
}

/* === Page Header (Catalog/Collection) === */
.page-header {
  text-align: center;
  padding: var(--gap-lg) var(--gap-md) var(--gap-md);
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === Stats Display === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap-xs);
  width: 100%;
}
.stat-item {
  text-align: center;
}
.stat-label {
  font-family: var(--font-display);
  font-size: 0.5rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.stat-value {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* === Level Badge === */
.level-badge {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--neon-blue);
  background: rgba(77, 240, 255, 0.1);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(77, 240, 255, 0.2);
}

/* === Evolve Button === */
.evolve-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--gap-xs) var(--gap-md);
  cursor: pointer;
  animation: pulse-glow 2s ease-in-out infinite;
  transition: transform 0.15s;
}
.evolve-btn:hover {
  transform: scale(1.05);
}
.evolve-btn:active {
  transform: scale(0.96);
}

/* === Modal / Overlay === */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(6, 6, 26, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fade-in 0.2s ease;
}
.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--gap-lg);
  max-width: 340px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-md);
  animation: slide-up 0.3s ease;
}

/* === Utility === */
.hidden {
  display: none !important;
}

/* === Animations === */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

@keyframes flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; filter: brightness(3); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(168, 85, 247, 0.3); }
  50% { box-shadow: 0 0 20px rgba(168, 85, 247, 0.5), 0 0 40px rgba(168, 85, 247, 0.2); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slide-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.anim-shake { animation: shake 0.3s ease; }
.anim-flash { animation: flash 0.2s ease; }

/* Post-battle reward details */
.level-up {
  color: #fbbf24;
  font-weight: 700;
  font-size: 1.1rem;
  text-shadow: 0 0 8px rgba(251, 191, 36, 0.5);
}
.evolution {
  color: #a855f7;
  font-weight: 700;
  font-size: 1.2rem;
  text-shadow: 0 0 12px rgba(168, 85, 247, 0.6);
  animation: pulse-glow 1.5s infinite;
}
.xp-progress {
  color: #94a3b8;
  font-size: 0.75rem;
}

/* === Responsive === */
@media (min-width: 480px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  }
  .foot-sprite {
    width: 140px;
    height: 140px;
    background-size: 560px 560px;
  }
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--gap-lg);
    padding: var(--gap-lg);
  }
  .combatant.opponent .bar-group,
  .combatant.player .bar-group {
    width: 200px;
  }
  .skill-panel {
    grid-template-columns: repeat(4, 1fr);
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (min-width: 1024px) {
  .card-grid {
    max-width: 960px;
    margin: 0 auto;
  }
}