/* ========================================================================= */
/* O'yinCha Neo-Brutalist Sticker & Notebook Retro-Pop Theme (CSS3)          */
/* 100% Standart Bepul Tizim Shriftlari (Native Zero-Cost System Fonts)     */
/* 100% Mobile Responsive & Touch-Optimized Design                          */
/* ========================================================================= */

:root {
  --bg-main: #FFFDF8;
  --bg-card: #FFFFFF;
  --bg-paper: #FAF4E6;
  --border-dark: #0F172A;
  --shadow-color: #0F172A;
  
  --yellow-main: #FFD23F;
  --pink-main: #FF2A85;
  --blue-main: #2962FF;
  --green-main: #00E676;
  --purple-main: #9C27B0;
  --orange-main: #FF6D00;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-paper);
  background-image: radial-gradient(#CBD5E1 1.2px, transparent 1.2px);
  background-size: 24px 24px;
  color: #0F172A;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  touch-action: manipulation;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Classes (100% Bepul Tizim Shriftlari) */
.font-display {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Arial Rounded MT Bold', sans-serif;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.font-mono-arcade {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  font-weight: 700;
}

/* Container */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Neo-Brutalist Sticker Components */
.sticker-card {
  background: var(--bg-card);
  border: 3px solid var(--border-dark);
  border-radius: 24px;
  box-shadow: 5px 5px 0px var(--shadow-color);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  touch-action: manipulation;
}

.sticker-card:hover {
  transform: translateY(-2px);
  box-shadow: 7px 7px 0px var(--shadow-color);
}

.sticker-card:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--shadow-color);
}

.sticker-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  font-size: 14px;
  border: 2px solid var(--border-dark);
  border-radius: 14px;
  padding: 8px 16px;
  background: var(--bg-card);
  color: var(--border-dark);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 3px 3px 0px var(--shadow-color);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  user-select: none;
  touch-action: manipulation;
}

.sticker-btn:hover {
  background: #FFF9E6;
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0px var(--shadow-color);
}

.sticker-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--shadow-color);
}

.sticker-btn-hero {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 900;
  font-size: 15px;
  border: 3px solid var(--border-dark);
  border-radius: 18px;
  padding: 12px 24px;
  background: var(--yellow-main);
  color: var(--border-dark);
  cursor: pointer;
  text-decoration: none;
  box-shadow: 4px 4px 0px var(--shadow-color);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  user-select: none;
  touch-action: manipulation;
}

.sticker-btn-hero:hover {
  background: #FFDC69;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--shadow-color);
}

.sticker-btn-hero:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0px var(--shadow-color);
}

/* Modal Tabs Bar & Buttons (Prevents Vertical Squashing on All Devices) */
.modal-tabs-bar {
  display: flex !important;
  gap: 8px !important;
  border-bottom: 2px solid var(--border-dark) !important;
  padding-bottom: 8px !important;
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch !important;
  flex-wrap: nowrap !important;
  flex-shrink: 0 !important;
  min-height: 52px !important;
  scrollbar-width: none !important;
  align-items: center !important;
}

.modal-tabs-bar::-webkit-scrollbar {
  display: none !important;
}

.modal-tab-btn {
  flex-shrink: 0 !important;
  min-height: 40px !important;
  height: 40px !important;
  padding: 0 16px !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  white-space: nowrap !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: 2px solid var(--border-dark) !important;
  border-radius: 12px !important;
  box-shadow: 2px 2px 0px var(--shadow-color) !important;
  cursor: pointer !important;
  user-select: none !important;
  touch-action: manipulation !important;
  line-height: 1 !important;
  background: white;
  color: var(--border-dark);
}

.modal-tab-btn:hover {
  background: #FFF9E6;
}

.modal-tab-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0px var(--shadow-color);
}

/* Washi Tape Effect */
.washi-tape-top {
  position: relative;
}

.washi-tape-top::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-1deg);
  width: 90px;
  height: 22px;
  background: rgba(255, 210, 63, 0.85);
  border: 1px dashed rgba(15, 23, 42, 0.4);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  z-index: 10;
  pointer-events: none;
}

/* Navbar */
.navbar {
  background: var(--bg-main) !important;
  background-color: #FFFDF8 !important;
  border-bottom: 3px solid var(--border-dark);
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 0px rgba(15, 23, 42, 0.05);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--border-dark);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  font-size: 13px;
  font-weight: 800;
  color: #334155;
  padding: 6px 10px;
  border-radius: 12px;
  transition: background 0.15s;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  background: var(--yellow-main);
  color: var(--border-dark);
  border: 2px solid var(--border-dark);
  box-shadow: 2px 2px 0px var(--shadow-color);
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #FFFDF8;
  border-top: 3px solid var(--border-dark);
  padding: 8px 12px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
  z-index: 999;
  justify-content: space-around;
  align-items: center;
  box-shadow: 0 -4px 10px rgba(15, 23, 42, 0.1);
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
  color: #475569;
  font-size: 10px;
  font-weight: 800;
  touch-action: manipulation;
}

.mobile-nav-item.active, .mobile-nav-item:hover {
  color: #0F172A;
}

.mobile-nav-item span.icon {
  font-size: 20px;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* 100% Mobile Responsive Breakpoints */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .mobile-bottom-nav {
    display: flex;
  }
  body {
    padding-bottom: calc(75px + env(safe-area-inset-bottom, 0px));
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 600px) {
  .sticker-card {
    padding: 16px !important;
    border-radius: 20px;
  }
  .font-display {
    font-size: 90%;
  }
  .container {
    padding: 0 12px;
  }
  .sticker-btn-hero {
    padding: 10px 18px;
    font-size: 14px;
  }
}

/* Adaptive Mobile-Ready Quoridor Board Grid */
.cell {
  width: 100%;
  height: 100%;
  background: #334155;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  touch-action: manipulation;
}

.cell:hover {
  background: #475569;
}

.pawn-p1 {
  width: 75%;
  height: 75%;
  background: #2962FF;
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 0 8px #2962FF;
}

.pawn-p2 {
  width: 75%;
  height: 75%;
  background: #FF2A85;
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 0 8px #FF2A85;
}

/* Footer */
footer {
  margin-top: auto;
  background: var(--bg-main);
  border-top: 3px solid var(--border-dark);
  padding: 24px 0;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: #64748B;
}