/* ==========================================================================
   4U.IA.BR - PAC-MAN 404 PAGE STYLESHEET
   Light Theme Aesthetic Matching 4U.IA.BR Ecosystem
   Responsive, Clean, Modern Typography & Interactive Elements
   ========================================================================== */

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

:root {
  --primary-gold: #f59e0b;
  --primary-gold-dark: #d97706;
  --primary-blue: #0284c7;
  --primary-blue-dark: #0369a1;
  --bg-page: #f8fafc;
  --text-dark: #0f172a;
  --text-muted: #64748b;
  --border-subtle: #e2e8f0;
}

body {
  font-family: 'Open Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text-dark);
  background-color: var(--bg-page);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------------- Top Header ---------------- */
header.top-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  z-index: 50;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.header-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.logo-title {
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.3px;
  line-height: 1;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge-ecosystem {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
  font-weight: 700;
  color: #059669;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  padding: 2px 8px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  animation: pulse-dot 1.8s infinite;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

.nav-menu a {
  text-decoration: none;
  color: #475569;
  font-size: 13px;
  font-weight: 600;
  transition: color 0.2s;
  letter-spacing: 0.2px;
}

.nav-menu a:hover {
  color: var(--primary-gold-dark);
}

/* Header Actions: Language Switcher & Store CTA */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 4px 10px;
  border-radius: 16px;
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}

.lang-btn:hover {
  color: #0f172a;
}

.lang-btn.active {
  background: #0f172a;
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.btn-header-store {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #0f172a;
  color: #ffffff;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
}

.btn-header-store:hover {
  background: var(--primary-gold-dark);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

/* ---------------- Hero Section ---------------- */
.hero-section {
  background: linear-gradient(180deg, #006eb5 0%, #004d82 100%);
  color: #ffffff;
  padding: 36px 20px 84px;
  text-align: center;
  position: relative;
}

.hero-inner {
  max-width: 980px;
  margin: 0 auto;
  position: relative;
}

.btn-back-link {
  position: absolute;
  right: 6px;
  top: 0px;
  color: #d8ecff;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all 0.2s;
}

.btn-back-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateX(-2px);
}

.hero-title {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 400;
  color: #e2f0fc;
}

/* ---------------- Pacman Game Board Card ---------------- */
.game-section {
  max-width: 980px;
  margin: -50px auto 40px;
  padding: 0 16px;
  position: relative;
  z-index: 10;
}

.game-board-card {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #cbd5e1;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.canvas-wrapper {
  width: 100%;
  max-width: 880px;
  display: flex;
  justify-content: center;
  position: relative;
}

canvas#gameCanvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 880px;
  background: #ffffff;
  border-radius: 6px;
  user-select: none;
  cursor: pointer;
}

/* Bottom Game Controls Bar */
.game-controls-bar {
  width: 100%;
  max-width: 880px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding: 4px 6px;
  flex-wrap: wrap;
  gap: 12px;
}

.mode-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: #0284c7;
  background: #f0f9ff;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid #bae6fd;
}

.mode-badge .dot {
  width: 9px;
  height: 9px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 1.6s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.35); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

.btn-group {
  display: flex;
  gap: 8px;
}

.control-btn {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  color: #334155;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}

.control-btn:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
  color: #0f172a;
}

.control-btn.active {
  background: #0284c7;
  color: #ffffff;
  border-color: #0369a1;
  box-shadow: 0 2px 6px rgba(2, 132, 199, 0.25);
}

/* Mobile D-Pad Touch */
.mobile-dpad {
  display: none;
  margin-top: 16px;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.dpad-row {
  display: flex;
  gap: 8px;
}

.dpad-btn {
  width: 52px;
  height: 52px;
  background: #f1f5f9;
  border: 2px solid #cbd5e1;
  border-radius: 10px;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
}

.dpad-btn:active {
  background: #0284c7;
  color: #ffffff;
  border-color: #0369a1;
}

/* ---------------- Site Footer (4U.IA.BR Light Pattern) ---------------- */
footer.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  position: relative;
  padding: 42px 20px 24px;
}

.footer-top-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.45), transparent);
}

.footer-container {
  max-width: 1140px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  text-align: left;
}

.footer-col-brand .footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 12px;
}

.footer-brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: contain;
}

.footer-brand-title {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.2px;
}

.footer-brand-desc {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 270px;
}

.footer-col-nav h4 {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.footer-col-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col-nav a {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
}

.footer-col-nav a:hover {
  color: var(--primary-gold-dark);
  padding-left: 2px;
}

/* Footer Divider */
.footer-divider {
  margin: 32px 0 20px;
  height: 1px;
  background: var(--border-subtle);
}

/* Community & Social Bar */
.footer-social-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.community-label {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.community-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  animation: pulse-dot 1.8s infinite;
}

.social-icons-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.social-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.6rem;
  background-color: #f8fafc;
  border: 1px solid var(--border-subtle);
  color: #475569;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.social-icon-btn svg {
  width: 1rem;
  height: 1rem;
}

.social-icon-btn:hover {
  color: var(--primary-gold-dark);
  border-color: rgba(245, 158, 11, 0.6);
  background-color: rgba(245, 158, 11, 0.08);
  transform: translateY(-2px) scale(1.08);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.22);
}

/* Footer Copyright */
.footer-bottom {
  margin-top: 18px;
  padding-top: 14px;
  text-align: center;
  border-top: 1px solid #f1f5f9;
}

.copyright {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #94a3b8;
}

/* ---------------- Responsive Media Queries ---------------- */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .btn-header-store {
    display: none;
  }
  .mobile-dpad {
    display: flex;
  }
  .hero-title {
    font-size: 24px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .btn-back-link {
    position: static;
    margin-bottom: 12px;
  }
  .game-controls-bar {
    justify-content: center;
  }
  .footer-social-bar {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 540px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}