:root {
  --bg-dark: #070a14;
  --bg-gradient: radial-gradient(circle at 50% -10%, #171d3d 0%, #090d1c 45%, #05070e 100%);
  --panel-bg: rgba(16, 23, 46, 0.7);
  --panel-border: rgba(255, 255, 255, 0.1);
  --panel-border-hover: rgba(255, 255, 255, 0.25);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;

  /* Theme Accents */
  --c-hoops: #ff8c38;
  --c-hoops-glow: rgba(255, 140, 56, 0.45);
  --c-kicks: #10b981;
  --c-kicks-glow: rgba(16, 185, 129, 0.45);
  --c-pong: #38bdf8;
  --c-pong-glow: rgba(56, 189, 248, 0.45);
  --c-ski: #818cf8;
  --c-ski-glow: rgba(129, 140, 248, 0.45);
  --c-billiards: #ec4899;
  --c-billiards-glow: rgba(236, 72, 153, 0.45);
  --c-cs2: #f0b955;
  --c-cs2-glow: rgba(240, 185, 85, 0.45);

  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  display: none !important;
}

.brand:focus-visible,
.icon-btn:focus-visible,
.game-card:focus-visible,
footer a:focus-visible {
  outline: 3px solid var(--c-theme, #38bdf8);
  outline-offset: 4px;
}

.game-card:focus-visible {
  border-color: var(--c-theme);
  box-shadow: 0 0 0 1px #070a14, 0 0 0 5px var(--c-theme-glow);
}

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-dark);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-display);
  overflow-x: hidden;
  user-select: none;
  -webkit-user-select: none;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

/* App Container */
#portal-app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(20px + var(--safe-t)) calc(20px + var(--safe-r)) calc(40px + var(--safe-b)) calc(20px + var(--safe-l));
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header & Top Bar */
.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  margin-bottom: 36px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #ff007a, #7928ca, #0070f3);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(121, 40, 202, 0.5);
}

.brand-icon svg {
  width: 22px;
  height: 22px;
  fill: #fff;
}

.brand-info h1 {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.06em;
  background: linear-gradient(90deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.brand-info span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #94a3b8;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
  transform: translateY(-1px);
}

.icon-btn svg {
  width: 14px;
  height: 14px;
}

/* Hero Section */
.hero-banner {
  text-align: center;
  margin: 10px 0 46px;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.hero-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
  animation: pulse 1.8s infinite;
}

.hero-banner h2 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 70%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.5));
}

.hero-banner p {
  font-size: clamp(14px, 2vw, 17px);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Overall Stats Row */
.stats-strip {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.stat-bubble {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  padding: 12px 24px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.stat-bubble .stat-num {
  font-size: 24px;
  font-weight: 900;
  color: #38bdf8;
  font-variant-numeric: tabular-nums;
}

.stat-bubble .stat-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  flex-direction: column;
}

/* Game Cards Grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  perspective: 1200px;
  margin-bottom: 60px;
}

/* Game Card */
.game-card {
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  padding: 26px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.25s cubic-bezier(0.2, 0, 0.2, 1),
              box-shadow 0.25s cubic-bezier(0.2, 0, 0.2, 1),
              border-color 0.25s ease;
  transform-style: preserve-3d;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

/* Card dynamic theme colors */
.game-card[data-theme="hoops"] {
  --c-theme: var(--c-hoops);
  --c-theme-glow: var(--c-hoops-glow);
}
.game-card[data-theme="kicks"] {
  --c-theme: var(--c-kicks);
  --c-theme-glow: var(--c-kicks-glow);
}
.game-card[data-theme="pong"] {
  --c-theme: var(--c-pong);
  --c-theme-glow: var(--c-pong-glow);
}
.game-card[data-theme="ski"] {
  --c-theme: var(--c-ski);
  --c-theme-glow: var(--c-ski-glow);
}
.game-card[data-theme="billiards"] {
  --c-theme: var(--c-billiards);
  --c-theme-glow: var(--c-billiards-glow);
}
.game-card[data-theme="cs2"] {
  --c-theme: var(--c-cs2);
  --c-theme-glow: var(--c-cs2-glow);
}

.game-card:hover {
  border-color: var(--c-theme);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 35px var(--c-theme-glow);
  transform: translateY(-6px) scale(1.015);
}

/* Glare highlight sweep */
.card-glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(circle 320px at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.12), transparent 80%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.game-card:hover .card-glare {
  opacity: 1;
}

/* Card Visual Header */
.card-visual {
  height: 150px;
  width: 100%;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(0, 0, 0, 0.4));
  border: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-visual svg.scene {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.game-card:hover .card-visual svg.scene {
  transform: scale(1.06);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--c-theme);
  color: var(--c-theme);
  text-transform: uppercase;
  z-index: 3;
}

.card-best-pill {
  position: absolute;
  bottom: 10px;
  right: 12px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffd24a;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Card Content */
.card-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}

.card-title {
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.01em;
}

.card-sub {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--c-theme);
}

.card-desc {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.5;
  margin-bottom: 16px;
  flex: 1;
}

/* Modes Tags */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.tag {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 9px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Launch Action Button */
.launch-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 20px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: all 0.2s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.game-card:hover .launch-btn {
  background: var(--c-theme);
  color: #05070e;
  border-color: var(--c-theme);
  box-shadow: 0 0 25px var(--c-theme-glow);
  transform: translateY(-1px);
}

.launch-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform 0.2s ease;
}

.game-card:hover .launch-btn svg {
  transform: translateX(3px);
}

/* Footer */
footer {
  margin-top: auto;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: #64748b;
  font-size: 12px;
}

footer[hidden] {
  display: none;
}

footer a {
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: #38bdf8;
}

/* Keyframes */
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* Responsive Tweaks */
@media (max-width: 680px) {
  .top-nav {
    padding: 10px 16px;
    border-radius: 18px;
    margin-bottom: 24px;
  }
  .brand-info h1 {
    font-size: 21px;
  }
  .brand-info span {
    display: none;
  }
  .hero-banner h2 {
    font-size: 32px;
  }
  .games-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .game-card {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .icon-btn:hover,
  .game-card:hover,
  .game-card:hover .card-visual svg.scene,
  .game-card:hover .launch-btn,
  .game-card:hover .launch-btn svg {
    transform: none;
  }
}

/* Imported games reuse their original brand marks. */
.game-card[data-theme="melon"] {
  --c-theme: #ff929e;
  --c-theme-glow: rgba(255, 146, 158, 0.4);
}
.game-card[data-theme="mosswing"] {
  --c-theme: #b7d79b;
  --c-theme-glow: rgba(183, 215, 155, 0.4);
}
.imported-visual {
  background: radial-gradient(ellipse at center, var(--c-theme-glow), transparent 80%);
}
.imported-mark {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--c-theme);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.imported-mark svg {
  width: 48px;
  height: 56px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
}

.game-card[data-theme="garden"] {
  --c-theme: #b8c9ed;
  --c-theme-glow: rgba(184, 201, 237, 0.4);
}

#portal-announcement {
  padding: 16px 20px;
  margin: 0 0 26px;
  border: 1px solid rgba(129, 140, 248, 0.35);
  border-radius: 14px;
  background: rgba(129, 140, 248, 0.09);
  color: #d5d9ff;
  font-size: 15px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.game-card[data-theme="fruitninja"] {
  --c-theme: #ffa354;
  --c-theme-glow: rgba(255, 163, 84, 0.4);
}
.game-card[data-theme="survivors"] {
  --c-theme: #e8c56b;
  --c-theme-glow: rgba(232, 197, 107, 0.4);
}
.survivors-visual {
  background: linear-gradient(90deg, rgba(7, 16, 28, .45), rgba(7, 16, 28, .12)), url('../games/legends-survivors/assets/ui/menu-bg.png') center / cover;
}
.survivors-visual .imported-mark {
  font-size: 30px;
  text-shadow: 0 3px 12px #000;
}
.game-card[data-theme="pvz"] {
  --c-theme: #b5d762;
  --c-theme-glow: rgba(181, 215, 98, .35);
}
.game-card[data-theme="pvz"] .imported-mark { font-size: 15px; letter-spacing: .08em; gap: 10px; }
.pvz-flower { font-size: 48px; }
.game-card[data-theme="cinnamoroll"] { --c-theme: #a7d7f4; --c-theme-glow: rgba(167,215,244,.35); }
.cloud-visual { background: linear-gradient(0deg,rgba(25,52,77,.3),transparent 65%),url('../games/cinnamoroll/assets/cloud-cafe.webp') center 23% / cover; }