/* ==========================================
   Damas Online - Modern SEO-Rich Homepage
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Fraunces:opsz,wght@9..144,600;9..144,700&display=swap');

:root {
  /* Colors - Refined palette */
  --bg-dark: #0a0a1a;
  --bg-medium: #12122a;
  --bg-light: #1a1a3a;
  --bg-card: rgba(30, 30, 60, 0.6);
  --accent: #ff6b7a;
  --accent-hover: #ff8a95;
  --accent-glow: rgba(255, 107, 122, 0.4);
  --accent-soft: rgba(255, 107, 122, 0.15);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --success: #4ade80;
  --success-glow: rgba(74, 222, 128, 0.3);
  --warning: #fbbf24;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.12);

  /* Board colors */
  --board-light: #f0d9b5;
  --board-dark: #b58863;
  --board-highlight: rgba(255, 255, 0, 0.4);
  --board-selected: rgba(0, 255, 0, 0.4);
  --board-legal-move: rgba(0, 255, 0, 0.3);

  /* Piece colors */
  --piece-red: #c0392b;
  --piece-red-king: #e74c3c;
  --piece-black: #2c3e50;
  --piece-black-king: #34495e;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-round: 50%;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 30px var(--accent-glow);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(145deg, #0a0a20 0%, #141430 50%, #0a0a20 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

#app {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================
   Site Header & Navigation
   ========================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo .logo-icon {
  font-size: 1.5rem;
}

.nav-logo .logo-text {
  font-size: 1.1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
  padding: 0;
}

.nav-links li {
  list-style: none;
  display: flex;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--accent);
}

/* Nav Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: inherit;
  cursor: pointer;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0;
  line-height: 1.5;
}

.nav-dropdown-btn:hover {
  color: var(--accent);
}

.dropdown-arrow {
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}

.nav-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) 0;
  min-width: 140px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  list-style: none;
  z-index: 1000;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu li {
  list-style: none;
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.nav-dropdown-menu a:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ==========================================
   Screens
   ========================================== */

.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  flex: 1;
  animation: fadeIn 0.4s ease-out;
}

.screen.active {
  display: flex;
}

/* Home page special - full width scrollable */
.screen.home-page {
  max-width: 100%;
  padding: 60px 0 0 0;
  overflow-x: hidden;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   Header (non-home screens)
   ========================================== */

header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 0%, #ff6b7a 50%, #ff8a95 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 60px rgba(255, 107, 122, 0.3);
  line-height: 1.1;
}

h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================
   Hero Section
   ========================================== */

.hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  min-height: 90vh;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 107, 122, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(107, 122, 255, 0.1), transparent);
}

.hero-content {
  text-align: center;
  max-width: 600px;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent) 0%, #ff4d6a 100%);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 20px 5px var(--accent-glow); }
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 600px) {
  .hero-buttons {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* ==========================================
   Animated Board (Hero Visual)
   ========================================== */

.hero-visual {
  margin-top: var(--spacing-2xl);
  position: relative;
  z-index: 1;
}

.animated-board {
  position: relative;
  transform: perspective(800px) rotateX(10deg) rotateY(-5deg);
  transition: transform 0.5s ease;
}

.animated-board:hover {
  transform: perspective(800px) rotateX(5deg) rotateY(0deg) scale(1.02);
}

.board-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 70%);
  filter: blur(30px);
  z-index: -1;
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.mini-board {
  display: flex;
  flex-direction: column;
  width: clamp(200px, 45vw, 320px);
  aspect-ratio: 1;
  background: linear-gradient(145deg, #c9a86c 0%, #a67c52 100%);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 10px 30px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.mini-board .row {
  display: flex;
  flex: 1;
}

.mini-board .sq {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.mini-board .sq.light {
  background: var(--board-light);
}

.mini-board .sq.dark {
  background: var(--board-dark);
}

.mini-board .pc {
  width: 70%;
  height: 70%;
  border-radius: 50%;
  box-shadow:
    0 3px 6px rgba(0, 0, 0, 0.3),
    inset 0 2px 3px rgba(255, 255, 255, 0.2);
}

.mini-board .pc.red {
  background: radial-gradient(circle at 30% 30%, var(--piece-red-king), var(--piece-red));
  border: 2px solid #922b21;
}

.mini-board .pc.black {
  background: radial-gradient(circle at 30% 30%, var(--piece-black-king), var(--piece-black));
  border: 2px solid #1a252f;
}

/* Realistic capture animation */
/* Starting square gets highlighted */
.mini-board .sq.anim-start {
  animation: start-highlight 4s ease-in-out infinite;
}

@keyframes start-highlight {
  0%, 5% { background: var(--board-dark); }
  10%, 30% { background: rgba(255, 200, 0, 0.6); }
  35%, 100% { background: var(--board-dark); }
}

/* The piece that moves and captures */
.mini-board .pc.anim-piece {
  position: relative;
  z-index: 10;
  animation: capture-move 4s ease-in-out infinite;
}

@keyframes capture-move {
  0%, 15% {
    transform: translate(0, 0);
  }
  35%, 85% {
    /* Move 2 squares diagonally - piece is 70% of square, so 2 squares = 2/0.7 = ~286% */
    transform: translate(286%, 286%);
  }
  100% {
    transform: translate(0, 0);
  }
}

/* The piece being captured fades out */
.mini-board .pc.anim-captured {
  animation: get-captured 4s ease-in-out infinite;
}

@keyframes get-captured {
  0%, 25% {
    opacity: 1;
    transform: scale(1);
  }
  35% {
    opacity: 0;
    transform: scale(0.5);
  }
  90% {
    opacity: 0;
    transform: scale(0.5);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Landing square shows target indicator briefly */
.mini-board .sq.anim-land::after {
  content: '';
  position: absolute;
  width: 30%;
  height: 30%;
  background: rgba(0, 255, 100, 0.6);
  border-radius: 50%;
  animation: land-indicator 4s ease-in-out infinite;
}

@keyframes land-indicator {
  0%, 5% { opacity: 0; transform: scale(0); }
  10%, 30% { opacity: 1; transform: scale(1); }
  35%, 100% { opacity: 0; transform: scale(0); }
}

/* Floating pieces decoration */
.floating-piece {
  position: absolute;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  animation: float 6s ease-in-out infinite;
}

.fp-1 {
  top: -30px;
  right: -40px;
  background: radial-gradient(circle at 30% 30%, var(--piece-red-king), var(--piece-red));
  animation-delay: 0s;
}

.fp-2 {
  bottom: -20px;
  left: -50px;
  background: radial-gradient(circle at 30% 30%, var(--piece-black-king), var(--piece-black));
  animation-delay: 2s;
  width: 30px;
  height: 30px;
}

.fp-3 {
  top: 50%;
  right: -60px;
  background: radial-gradient(circle at 30% 30%, var(--piece-red-king), var(--piece-red));
  animation-delay: 4s;
  width: 25px;
  height: 25px;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 180px;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: 1.1rem;
  min-width: 200px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #ff4d6a 100%);
  color: white;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--accent-glow), 0 0 0 3px rgba(255, 107, 122, 0.1);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background: rgba(50, 50, 80, 0.8);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  min-width: auto;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  font-size: 1.1rem;
}

/* ==========================================
   Content Sections
   ========================================== */

section {
  width: 100%;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

section:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* Features Section */
.features-section {
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: left;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glass);
  box-shadow: var(--shadow-lg);
}

.feature-icon-wrap {
  width: 56px;
  height: 56px;
  background: var(--accent-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-card .feature-icon {
  font-size: 1.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* How to Play Section */
.how-to-play-section {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.steps-container {
  margin-top: var(--spacing-xl);
}

.step {
  display: flex;
  gap: var(--spacing-lg);
  text-align: left;
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.step:last-child {
  border-bottom: none;
}

.step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff4d6a 100%);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: white;
}

.step-content p {
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.cta-inline {
  margin-top: var(--spacing-xl);
}

.text-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.text-link:hover {
  color: var(--accent-hover);
}

/* Rules Section */
.rules-section {
  max-width: 900px;
  margin: 0 auto;
}

.rules-content {
  text-align: center;
}

.rules-intro {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  text-align: left;
}

.rule-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.rule-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.rule-text p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: var(--spacing-xs);
}

/* FAQ Section */
.faq-section {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.faq-list {
  margin-top: var(--spacing-lg);
  text-align: left;
}

.faq-item {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--border-glass);
}

.faq-item summary {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-primary);
  transition: color 0.3s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--accent);
}

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* About Section */
.about-section {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* Final CTA */
.final-cta {
  text-align: center;
  background: linear-gradient(180deg, transparent 0%, rgba(255, 107, 122, 0.05) 100%);
  padding: var(--spacing-3xl) var(--spacing-lg) !important;
}

.final-cta h2 {
  margin-bottom: var(--spacing-sm);
}

.final-cta p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* ==========================================
   Ads
   ========================================== */

.ad-container {
  width: 100%;
  max-width: 728px;
  min-height: 90px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--spacing-lg) auto;
  overflow: hidden;
}

.ad-container ins {
  width: 100%;
}

.ad-home {
  max-width: 90%;
  margin: 0 auto var(--spacing-xl);
}

.ad-result {
  max-width: 400px;
  margin: var(--spacing-lg) auto;
}

.ad-game {
  position: static;
  margin: var(--spacing-lg) auto;
  max-width: 300px;
  min-height: 250px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.ad-close {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 32px;
  height: 32px;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 101;
  color: white;
  font-size: 18px;
  font-weight: bold;
  transition: background 0.2s ease, transform 0.2s ease;
}

.ad-close:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: scale(1.1);
}

.ad-game.hidden {
  display: none !important;
}

.ad-invite {
  margin-bottom: 20px;
  max-width: 300px;
}

/* Responsive game ads - mobile first */
.ad-game-desktop {
  display: none;
}

.ad-game-mobile {
  display: flex;
}

@media (min-width: 900px) {
  .ad-game-desktop {
    display: flex;
  }

  .ad-game-mobile {
    display: none;
  }
  #game-screen {
    max-width: none;
    width: 100%;
  }

  #game-screen .game-container {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    padding-bottom: 0;
    gap: var(--spacing-lg);
  }

  .ad-game {
    position: static;
    width: 300px;
    min-height: 250px;
    height: auto;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
  }

  .ad-toggle {
    display: none;
  }

  .ad-game.collapsed {
    min-height: 250px;
    height: auto;
    overflow: visible;
    border: 1px solid var(--border-subtle);
  }
}

/* ==========================================
   Footer
   ========================================== */

.home-footer {
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.footer-other {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.footer-other a {
  color: var(--accent);
  text-decoration: none;
}

.footer-other a:hover {
  text-decoration: underline;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================
   Non-Home Screens (Game, Lobby, etc.)
   ========================================== */

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  width: 100%;
  max-width: 280px;
}

.menu-buttons .btn {
  width: 100%;
}

/* Join Invite Section */
.join-invite-section {
  margin-top: var(--spacing-2xl);
  text-align: center;
  width: 100%;
}

.join-invite-section p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
}

.invite-input-group {
  display: flex;
  gap: var(--spacing-sm);
}

.invite-input-group input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.invite-input-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.invite-input-group input::placeholder {
  color: var(--text-muted);
}

/* Lobby */
.lobby-content {
  text-align: center;
  padding: var(--spacing-2xl);
}

.loading-spinner {
  width: 56px;
  height: 56px;
  border: 3px solid var(--border-glass);
  border-top-color: var(--accent);
  border-radius: var(--radius-round);
  animation: spin 0.8s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
  margin: var(--spacing-xl) auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.lobby-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: var(--spacing-lg);
}

/* Invite Screen */
.invite-content {
  text-align: center;
  width: 100%;
}

.invite-link-box {
  display: flex;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.invite-link-box input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.invite-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Share Buttons - Only show on mobile/touch devices */
.share-buttons {
  display: none;
  gap: var(--spacing-sm);
  justify-content: center;
  margin: var(--spacing-md) 0;
  flex-wrap: wrap;
}

@media (hover: none) and (pointer: coarse) {
  .share-buttons {
    display: flex;
  }
}

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  min-width: auto;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
}

.btn-share svg {
  flex-shrink: 0;
}

.btn-whatsapp {
  background: #25D366;
  color: white;
  border: none;
}

.btn-whatsapp:hover {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

.btn-messenger {
  background: #0084FF;
  color: white;
  border: none;
}

.btn-messenger:hover {
  background: #0073e6;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 132, 255, 0.4);
}

/* ==========================================
   Game Board
   ========================================== */

.game-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  padding-bottom: var(--spacing-lg);
}

#board-container {
  padding: var(--spacing-sm);
  background: linear-gradient(145deg, #c9a86c 0%, #a67c52 100%);
  border-radius: var(--radius-lg);
  box-shadow:
    0 10px 40px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

#board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  width: min(90vw, 400px);
  height: min(90vw, 400px);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.square {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.square-light {
  background: var(--board-light);
}

.square-dark {
  background: var(--board-dark);
}

.square.selected {
  background: var(--board-selected) !important;
}

.square.legal-move {
  cursor: pointer;
}

.square.legal-move::after {
  content: '';
  width: 30%;
  height: 30%;
  background: var(--board-legal-move);
  border-radius: var(--radius-round);
}

.square.legal-capture::after {
  width: 80%;
  height: 80%;
  background: rgba(255, 0, 0, 0.3);
  border: 3px solid rgba(255, 0, 0, 0.6);
}

.square.last-move {
  background: var(--board-highlight) !important;
}

.square.must-move {
  animation: mustMovePulse 0.5s ease-in-out 3;
}

@keyframes mustMovePulse {
  0%, 100% { box-shadow: inset 0 0 0 3px rgba(255, 200, 0, 0.8); }
  50% { box-shadow: inset 0 0 0 5px rgba(255, 200, 0, 1); }
}

/* ==========================================
   Pieces
   ========================================== */

.piece {
  width: 80%;
  height: 80%;
  border-radius: var(--radius-round);
  cursor: pointer;
  transition: transform 0.15s ease;
  position: relative;
  box-shadow:
    0 4px 8px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(255, 255, 255, 0.2);
}

.piece:hover {
  transform: scale(1.08);
}

.piece-red {
  background: radial-gradient(circle at 30% 30%, var(--piece-red-king), var(--piece-red));
  border: 3px solid #922b21;
}

.piece-black {
  background: radial-gradient(circle at 30% 30%, var(--piece-black-king), var(--piece-black));
  border: 3px solid #1a252f;
}

.piece.king::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50%;
  height: 50%;
  border-radius: 50%;
  background: radial-gradient(circle, gold 0%, #daa520 50%, transparent 70%);
  box-shadow: 0 0 8px gold, inset 0 0 4px rgba(255, 215, 0, 0.8);
}

.piece.disabled {
  cursor: default;
  opacity: 0.7;
}

.piece.dragging {
  opacity: 0.5;
  transform: scale(1.1);
  cursor: grabbing;
}

.piece:not(.disabled) {
  cursor: grab;
}

.piece:not(.disabled):active {
  cursor: grabbing;
}

.piece.animating {
  position: absolute;
  z-index: 10;
  transition: transform 0.25s ease-in-out;
}

.piece.captured {
  animation: captureAnim 0.3s ease-out forwards;
}

@keyframes captureAnim {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.5; }
  100% { transform: scale(0); opacity: 0; }
}

/* ==========================================
   Player Info
   ========================================== */

.game-header {
  width: 100%;
  margin-bottom: var(--spacing-md);
}

.player-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.player-top {
  justify-content: flex-start;
}

.player-bottom {
  justify-content: flex-end;
  margin-top: var(--spacing-md);
}

.turn-indicator {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-round);
  background: var(--text-muted);
  transition: all 0.3s ease;
}

.turn-indicator.active {
  background: var(--success);
  box-shadow: 0 0 12px var(--success-glow);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 12px var(--success-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 20px var(--success-glow); }
}

.player-timer {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 44px;
  text-align: center;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.player-timer.timer-warning {
  color: var(--warning);
}

.player-timer.timer-danger {
  color: var(--accent);
  animation: timerPulse 0.5s ease-in-out infinite;
}

@keyframes timerPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

.player-pieces {
  display: flex;
  gap: 3px;
}

.captured-piece {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-round);
  box-shadow: var(--shadow-sm);
}

.captured-red {
  background: var(--piece-red);
}

.captured-black {
  background: var(--piece-black);
}

.game-status {
  text-align: center;
  padding: var(--spacing-sm);
  font-weight: 600;
  color: var(--success);
  min-height: 2rem;
}

/* ==========================================
   Result Screen
   ========================================== */

.result-content {
  text-align: center;
  padding: var(--spacing-2xl);
}

.result-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1;
  animation: bounceIn 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounceIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

.result-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* ==========================================
   Modal
   ========================================== */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.active {
  display: flex;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  max-width: 90%;
  width: 320px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease-out;
}

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

.modal-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-size: 1.3rem;
}

.modal-content p {
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 600px) {
  .hero-section {
    padding: var(--spacing-2xl) var(--spacing-md);
    min-height: auto;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .step {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .floating-piece {
    display: none;
  }
}

@media (max-width: 400px) {
  h1 {
    font-size: 2rem;
  }

  .btn {
    min-width: 160px;
    padding: var(--spacing-sm) var(--spacing-lg);
  }

  .btn-large {
    min-width: 180px;
  }

  #board {
    width: 95vw;
    height: 95vw;
  }

  .screen:not(.home-page) {
    padding: var(--spacing-md);
  }
}

@media (min-height: 800px) {
  .ad-container {
    min-height: 120px;
  }
}

/* Large screens - two column hero */
@media (min-width: 900px) {
  .hero-section {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-3xl);
    padding: var(--spacing-3xl);
  }

  .hero-content {
    text-align: left;
    max-width: 500px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-visual {
    margin-top: 0;
  }

  .mini-board {
    width: 350px;
  }
}

/* ==========================================
   Scrollbar Styling
   ========================================== */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-light);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-glass);
}

/* ==========================================
   Content Pages (Regras, Como Jogar)
   ========================================== */

.content-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 80px; /* Account for fixed header */
  background: radial-gradient(ellipse 100% 40% at 50% 0%, rgba(255, 107, 122, 0.12), transparent 70%);
}

/* Page Navigation */
.page-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* Page Hero */
.page-hero {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.page-hero h1 {
  margin-bottom: var(--spacing-md);
}

.page-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Table of Contents */
.toc {
  max-width: 800px;
  margin: 0 auto var(--spacing-2xl);
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.toc h2 {
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-lg);
  list-style: none;
}

.toc a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.toc a:hover {
  text-decoration: underline;
}

/* Page Content */
.page-content {
  flex: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg) var(--spacing-3xl);
  width: 100%;
}

.content-section {
  margin-bottom: var(--spacing-3xl);
  scroll-margin-top: 80px;
}

.content-section h2 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
}

.content-section > p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.content-section ul,
.content-section ol {
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.content-section li {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all 0.3s ease;
}

.info-card:hover {
  border-color: var(--border-glass);
  transform: translateY(-2px);
}

.info-card.victory {
  border-color: var(--success);
  border-width: 2px;
}

.info-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.info-card h3 {
  margin-bottom: var(--spacing-sm);
}

.info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Rule Box */
.rule-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.rule-box h3 {
  color: var(--accent);
  margin-bottom: var(--spacing-md);
}

.rule-box ul {
  margin-bottom: 0;
}

/* Highlight Box */
.highlight-box {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) 0;
}

.highlight-box.warning {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.highlight-box.success {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.highlight-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.highlight-content h3 {
  margin-bottom: var(--spacing-sm);
}

.highlight-content p {
  color: var(--text-secondary);
  margin: 0;
}

/* Tips Grid */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  position: relative;
  transition: all 0.3s ease;
}

.tip-card:hover {
  border-color: var(--border-glass);
  transform: translateY(-2px);
}

.tip-card.highlight {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.tip-number {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: white;
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.tip-card h3 {
  margin-bottom: var(--spacing-sm);
  padding-right: 40px;
}

.tip-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* Steps Visual */
.steps-visual {
  margin-top: var(--spacing-lg);
}

.step-card {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  transition: all 0.3s ease;
}

.step-card:hover {
  border-color: var(--border-glass);
}

.step-card .step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent) 0%, #ff4d6a 100%);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: white;
}

.step-card .step-content h3 {
  margin-bottom: var(--spacing-sm);
}

.step-card .step-content p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.step-card .step-content ul {
  margin: var(--spacing-sm) 0 0;
  padding-left: var(--spacing-lg);
}

/* Color Legend */
.color-legend {
  display: flex;
  gap: var(--spacing-lg);
  margin: var(--spacing-md) 0;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.color-dot {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-round);
}

.color-dot.green {
  background: var(--board-legal-move);
  border: 2px solid rgba(0, 255, 0, 0.6);
}

.color-dot.red {
  background: rgba(255, 0, 0, 0.3);
  border: 2px solid rgba(255, 0, 0, 0.6);
}

/* Visual Summary */
.visual-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
}

.summary-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.summary-card h3 {
  margin-bottom: var(--spacing-xs);
}

.summary-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin: 0;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  background: linear-gradient(180deg, transparent 0%, rgba(255, 107, 122, 0.05) 100%);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-2xl);
}

.cta-section h2 {
  margin-bottom: var(--spacing-sm);
}

.cta-section > p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
}

/* Page Footer */
.page-footer {
  background: rgba(0, 0, 0, 0.3);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  margin-top: auto;
}

.page-footer .footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.page-footer .footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.page-footer > p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Content Pages Responsive */
@media (max-width: 600px) {
  .page-nav {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .page-hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .toc ul {
    flex-direction: column;
  }

  .step-card {
    flex-direction: column;
  }

  .step-card .step-number {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }

  .highlight-box {
    flex-direction: column;
  }

  .color-legend {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}