/* Import modern typography from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg-color: #07090e;
  --surface-color: rgba(19, 21, 32, 0.6);
  --surface-border: rgba(255, 255, 255, 0.08);
  --color-primary: #00f0ff; /* Player X Neon Cyan */
  --color-secondary: #d946ef; /* Player O Neon Pink */
  --color-accent: #8b5cf6; /* Neon Purple */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --glow-shadow-primary: 0 0 15px rgba(0, 240, 255, 0.4);
  --glow-shadow-secondary: 0 0 15px rgba(217, 70, 239, 0.4);
  --glow-shadow-accent: 0 0 20px rgba(139, 92, 246, 0.3);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background glowing circles for premium depth */
body::before, body::after {
  content: '';
  position: absolute;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  opacity: 0.25;
  pointer-events: none;
}

body::before {
  top: 10%;
  left: -50px;
  background: var(--color-primary);
}

body::after {
  top: 60%;
  right: -50px;
  background: var(--color-secondary);
}

/* Typography elements */
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 9, 14, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.5rem;
  font-family: 'Space Grotesk', sans-serif;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: #fff;
  box-shadow: var(--glow-shadow-accent);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 32px;
}

nav a {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.95rem;
}

nav a:hover, nav a.active {
  color: var(--color-primary);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

/* Hero Section */
.hero {
  padding: 100px 0 80px;
  position: relative;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #c084fc;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 700;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(to right, var(--color-primary), #a855f7, var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-family: 'Space Grotesk', sans-serif;
  gap: 10px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #07090e;
  box-shadow: var(--glow-shadow-primary);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--color-secondary);
  background: rgba(217, 70, 239, 0.05);
  box-shadow: var(--glow-shadow-secondary);
  transform: translateY(-2px);
}

/* Feature Grid */
.features {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-desc {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 60px;
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 40px 30px;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.feature-card::before {
  content: '';
  width: 100%;
  height: 2px;
  margin-bottom: 24px;
  border-radius: 2px;
}

.feature-card.primary::before {
  background: var(--color-primary);
  box-shadow: var(--glow-shadow-primary);
}

.feature-card.secondary::before {
  background: var(--color-secondary);
  box-shadow: var(--glow-shadow-secondary);
}

.feature-card.accent::before {
  background: var(--color-accent);
  box-shadow: var(--glow-shadow-accent);
}

.feature-icon-wrapper {
  margin-bottom: 20px;
  font-size: 2rem;
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Interactive Preview Grid Section */
.game-preview {
  padding: 80px 0;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
}

.preview-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  flex-wrap: wrap;
}

.preview-text {
  flex: 1 1 450px;
}

.preview-visual {
  flex: 1 1 400px;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Glowing Tic Tac Toe Board Mockup */
.mock-board {
  width: 320px;
  height: 320px;
  background: rgba(13, 15, 24, 0.8);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
  padding: 15px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), var(--glow-shadow-accent);
  position: relative;
}

.mock-cell {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  cursor: default;
  transition: var(--transition-smooth);
}

.mock-cell.x {
  color: var(--color-primary);
  text-shadow: var(--glow-shadow-primary);
  animation: pulse-glow-x 2s infinite ease-in-out;
}

.mock-cell.o {
  color: var(--color-secondary);
  text-shadow: var(--glow-shadow-secondary);
  animation: pulse-glow-o 2s infinite ease-in-out;
}

.mock-line {
  position: absolute;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  box-shadow: var(--glow-shadow-accent);
  border-radius: 100px;
}

/* Diagonal line strike mock */
.mock-line.diagonal {
  width: 120%;
  height: 6px;
  top: 50%;
  left: -10%;
  transform: rotate(45deg);
  transform-origin: center;
  z-index: 5;
  animation: strike-line 1.5s forwards ease-in-out;
}

/* Customize details lists */
.preview-list {
  list-style: none;
  margin-top: 30px;
}

.preview-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.preview-list-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  background: rgba(0, 240, 255, 0.1);
  border-radius: 50%;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: bold;
}

/* Custom Profile Avatars Show / Visual Layout */
.avatars-preview {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.avatar-bubble {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  border: 2px solid var(--surface-border);
  background: #1b1e2e;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition-smooth);
}

.avatar-bubble:hover {
  transform: scale(1.15) translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--glow-shadow-primary);
}

/* Custom Themes Preview */
.theme-swatches {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.theme-swatch {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.theme-swatch:hover {
  transform: scale(1.2);
  border-color: #fff;
}

.swatch-1 { background: linear-gradient(135deg, #00f0ff, #8b5cf6); }
.swatch-2 { background: linear-gradient(135deg, #ff00a0, #7928ca); }
.swatch-3 { background: linear-gradient(135deg, #10b981, #059669); }
.swatch-4 { background: linear-gradient(135deg, #f59e0b, #d97706); }
.swatch-5 { background: linear-gradient(135deg, #ef4444, #b91c1c); }

/* Privacy Page / Terms Styles */
.policy-body {
  padding: 80px 0;
  max-width: 800px;
  margin: 0 auto;
}

.policy-card {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(10px);
  border-radius: 24px;
  padding: 50px 40px;
}

.policy-card h1 {
  font-size: 2.5rem;
  margin-bottom: 8px;
  background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.last-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
  display: block;
}

.policy-section {
  margin-bottom: 30px;
}

.policy-section h2 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 8px;
}

.policy-section p {
  color: #d1d5db;
  margin-bottom: 14px;
  font-size: 1rem;
}

.policy-section ul {
  list-style-position: inside;
  margin-left: 10px;
  margin-bottom: 14px;
  color: #d1d5db;
}

.policy-section li {
  margin-bottom: 8px;
}

/* Footer */
footer {
  border-top: 1px solid var(--surface-border);
  padding: 40px 0;
  background: #06070a;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-size: 1.25rem;
}

.footer-links {
  display: flex;
  gap: 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.copyright {
  font-size: 0.85rem;
  color: #4b5563;
  margin-top: 20px;
  text-align: center;
  width: 100%;
}

/* Keyframes Animations */
@keyframes pulse-glow-x {
  0%, 100% {
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
  }
  50% {
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.8), 0 0 30px rgba(0, 240, 255, 0.4);
  }
}

@keyframes pulse-glow-o {
  0%, 100% {
    text-shadow: 0 0 10px rgba(217, 70, 239, 0.3);
  }
  50% {
    text-shadow: 0 0 20px rgba(217, 70, 239, 0.8), 0 0 30px rgba(217, 70, 239, 0.4);
  }
}

@keyframes strike-line-horiz {
  from {
    width: 0%;
    opacity: 0;
  }
  to {
    width: 90%;
    opacity: 1;
  }
}

@keyframes strike-line-vert {
  from {
    height: 0%;
    opacity: 0;
  }
  to {
    height: 90%;
    opacity: 1;
  }
}

@keyframes strike-line-diag {
  from {
    width: 0%;
    opacity: 0;
  }
  to {
    width: 120%;
    opacity: 1;
  }
}

/* Responsive adjust */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.8rem;
  }
  nav ul {
    gap: 16px;
  }
  .preview-container {
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }
  .preview-visual {
    width: 100%;
  }
  .preview-list li {
    text-align: left;
  }
  .avatars-preview, .theme-swatches {
    justify-content: center;
  }
  .policy-card {
    padding: 30px 20px;
  }
}

/* ==========================================================================
   Interactive Game Additions (Premium Dashboard Layout)
   ========================================================================== */

.game-dashboard {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  background: rgba(13, 16, 27, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 45px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  width: 100%;
  align-items: flex-start;
  text-align: left;
}

.dashboard-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: space-between;
}

/* Profile section details */
.profile-setting-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 18px;
  padding: 20px;
  margin-bottom: 20px;
}

/* Avatars & Nickname */
.avatar-bubble {
  cursor: pointer;
  user-select: none;
  font-size: 1.6rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.avatar-bubble:hover {
  transform: translateY(-4px) scale(1.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.avatar-bubble.selected {
  border-color: var(--color-primary);
  box-shadow: var(--glow-shadow-primary);
  transform: translateY(-5px) scale(1.15);
  background: rgba(0, 240, 255, 0.12);
}

.nickname-input-wrapper {
  margin-top: 20px;
  width: 100%;
}

.nickname-input {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--surface-border);
  color: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  width: 100%;
  margin-top: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.nickname-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--glow-shadow-primary);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

/* Game Controls & Modes */
.game-controls {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.btn-small {
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  border: 1.5px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition-smooth);
  opacity: 0.55;
  transform: scale(0.96);
}

.btn-small:hover {
  border-color: var(--color-primary);
  background: rgba(0, 240, 255, 0.03);
  opacity: 0.85;
  transform: scale(1);
}

.btn-small.active {
  background: var(--color-primary);
  color: #07090e;
  border-color: var(--color-primary);
  box-shadow: 0 0 18px var(--color-primary), 0 0 30px rgba(0, 240, 255, 0.2);
  opacity: 1;
  font-weight: 700;
  transform: scale(1.06);
}

/* Online Setup Panel Styles */
.online-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 20px;
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.room-input {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--surface-border);
  color: #fff;
  padding: 12px 14px;
  border-radius: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  text-align: center;
  font-weight: 600;
  width: 100%;
  transition: var(--transition-smooth);
}

.room-input:focus {
  border-color: var(--color-secondary);
  box-shadow: var(--glow-shadow-secondary);
  outline: none;
}


/* Coin Toss Animation */
.coin-toss-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 24px;
  width: 100%;
  margin-top: 20px;
}

.coin-container {
  width: 90px;
  height: 90px;
  perspective: 1000px;
  margin-bottom: 12px;
}

.coin {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 2s cubic-bezier(0.175, 0.885, 0.32, 1.15);
}

.coin-side {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
}

.coin-heads {
  background: linear-gradient(135deg, #ffd700, #ffa500);
  color: #fff;
  border: 3px solid #ffd700;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.coin-tails {
  background: linear-gradient(135deg, #e5e7eb, #9ca3af);
  color: #1f2937;
  border: 3px solid #f3f4f6;
  transform: rotateY(180deg);
  text-shadow: 0 1px 2px rgba(255,255,255,0.4);
}

.coin.flip-heads {
  transform: rotateY(1800deg);
}

.coin.flip-tails {
  transform: rotateY(1980deg);
}

/* Playable Grid Cells */
.mock-board {
  margin: 0 auto;
}

.mock-cell.playable {
  cursor: pointer;
}

.mock-cell.playable:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-primary);
  box-shadow: inset 0 0 15px rgba(0, 240, 255, 0.08);
}

/* Game Status & Info text */
.game-status-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  text-shadow: var(--glow-shadow-primary);
  margin-top: 15px;
  min-height: 27px;
  text-align: center;
}

.game-status-text.turn-o {
  color: var(--color-secondary);
  text-shadow: var(--glow-shadow-secondary);
}

/* Stats dashboard styling */
.stats-dashboard {
  display: flex;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 16px;
  margin-top: 20px;
  width: 100%;
}

.stat-box {
  text-align: center;
}

.stat-val {
  font-size: 1.6rem;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--text-main);
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

.stat-box.win .stat-val { color: var(--color-primary); text-shadow: var(--glow-shadow-primary); }
.stat-box.loss .stat-val { color: var(--color-secondary); text-shadow: var(--glow-shadow-secondary); }
.stat-box.draw .stat-val { color: var(--text-muted); }

/* Winning Line styles */
.mock-line {
  display: none;
  z-index: 10;
}

.mock-line.active {
  display: block;
}

.mock-line.horiz-1, .mock-line.horiz-2, .mock-line.horiz-3 { height: 6px; animation: strike-line-horiz 0.4s forwards cubic-bezier(0.4, 0, 0.2, 1); }
.mock-line.vert-1, .mock-line.vert-2, .mock-line.vert-3 { width: 6px; animation: strike-line-vert 0.4s forwards cubic-bezier(0.4, 0, 0.2, 1); }
.mock-line.diag-1, .mock-line.diag-2 { height: 6px; animation: strike-line-diag 0.4s forwards cubic-bezier(0.4, 0, 0.2, 1); }

.mock-line.horiz-1 { top: calc(16.66% - 3px); left: 5%; }
.mock-line.horiz-2 { top: calc(50% - 3px); left: 5%; }
.mock-line.horiz-3 { top: calc(83.33% - 3px); left: 5%; }
.mock-line.vert-1 { left: calc(16.66% - 3px); top: 5%; }
.mock-line.vert-2 { left: calc(50% - 3px); top: 5%; }
.mock-line.vert-3 { left: calc(83.33% - 3px); top: 5%; }
.mock-line.diag-1 { top: 50%; left: -10%; transform: rotate(45deg); transform-origin: center; }
.mock-line.diag-2 { top: 50%; left: -10%; transform: rotate(-45deg); transform-origin: center; }

@media (max-width: 900px) {
  .game-dashboard {
    grid-template-columns: 1fr;
    padding: 25px;
    gap: 30px;
  }
}