:root {
  --sky:    #7ec8e3;
  --sky2:   #b8e4f0;
  --grass:  #5a8c3c;
  --grass2: #4a7430;
  --dirt:   #8b6340;
  --dirt2:  #6b4a28;
  --wood:   #c8934a;
  --wood2:  #a0722a;
  --cream:  #f5edd6;
  --cream2: #e8d8b8;
  --brown:  #5c3d1e;
  --text:   #3a2510;
  --text2:  #6b4a28;
  --green:  #4a8c3c;
  --teal:   #3a8c7c;
  --gold:   #d4a820;
  --sidebar-w: 200px;
  --font-px: 'Press Start 2P', monospace;
  --font-vt: 'VT323', monospace;
  image-rendering: pixelated;
}

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

body {
  background: var(--sky);
  color: var(--text);
  font-family: var(--font-vt);
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    linear-gradient(to bottom, rgba(0,30,80,0.18) 0%, transparent 28%, transparent 72%, rgba(0,60,0,0.12) 100%),
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 10%, rgba(255,255,255,0.2) 0%, transparent 40%);
}

/* ── Pixel grid overlay (dither texture) ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='4' height='4' viewBox='0 0 4 4' xmlns='http://www.w3.org/2000/svg'%3E%3Crect x='0' y='0' width='1' height='1' fill='rgba(0,0,0,0.03)'/%3E%3Crect x='2' y='2' width='1' height='1' fill='rgba(0,0,0,0.03)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

.site-wrap {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--wood);
  border-right: 4px solid var(--wood2);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  background-image:
    repeating-linear-gradient(
      180deg,
      transparent,
      transparent 18px,
      rgba(0,0,0,0.06) 18px,
      rgba(0,0,0,0.06) 20px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.04) 40px,
      rgba(255,255,255,0.04) 42px
    );
  background-color: var(--wood);
  box-shadow: 4px 0 0 var(--dirt2), 8px 0 16px rgba(0,0,0,0.2);
}

.sidebar-top {
  padding: 16px 12px 12px;
  border-bottom: 4px solid var(--wood2);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: rgba(0,0,0,0.08);
}

.logo-title {
  font-family: var(--font-px);
  font-size: 9px;
  color: var(--cream);
  text-shadow: 2px 2px 0 var(--brown), -1px -1px 0 rgba(0,0,0,0.3);
  letter-spacing: 0px;
  text-align: center;
  line-height: 1.6;
}

.logo-sub {
  font-family: var(--font-vt);
  font-size: 13px;
  color: rgba(245,237,214,0.6);
  letter-spacing: 1px;
}

/* Pixel sloth mascot */
.mascot {
  image-rendering: pixelated;
  animation: mascot-bounce 2.4s ease-in-out infinite;
}
@keyframes mascot-bounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  30%       { transform: translateY(-5px) rotate(-1deg); }
  60%       { transform: translateY(-2px) rotate(1deg); }
}

@keyframes arm-wave {
  0%,100% { transform: rotate(0deg); transform-origin: bottom right; }
  25%     { transform: rotate(-30deg); transform-origin: bottom right; }
  75%     { transform: rotate(20deg); transform-origin: bottom right; }
}

.nav-list {
  list-style: none;
  padding: 12px 0;
  flex: 1;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  background: none;
  border: none;
  color: var(--cream);
  font-family: var(--font-px);
  font-size: 7px;
  letter-spacing: 0px;
  cursor: pointer;
  transition: background 0.1s;
  text-align: left;
  text-shadow: 1px 1px 0 var(--brown);
  border-left: 4px solid transparent;
  line-height: 1.8;
}

.nav-btn:hover {
  background: rgba(0,0,0,0.15);
  border-left-color: var(--cream2);
}

.nav-btn.active {
  background: rgba(0,0,0,0.22);
  border-left-color: var(--gold);
  color: var(--gold);
}

.sidebar-footer {
  padding: 10px 12px;
  border-top: 4px solid var(--wood2);
  font-size: 11px;
  color: rgba(245,237,214,0.45);
  font-family: var(--font-vt);
  line-height: 1.7;
  text-align: center;
}

/* ── MAIN ── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 28px 36px;
  min-height: 100vh;
  position: relative;
  z-index: 10;
  padding-bottom: 60px;
}

/* ── Ground strip at bottom ── */
.ground-strip {
  position: fixed;
  bottom: 0; left: var(--sidebar-w); right: 0;
  height: 28px;
  background: var(--grass);
  border-top: 4px solid var(--grass2);
  z-index: 200;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
  overflow: hidden;
}
.ground-strip::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--grass2) 0, var(--grass2) 8px, var(--grass) 8px, var(--grass) 16px);
}
.ground-text {
  font-family: var(--font-vt);
  font-size: 13px;
  color: rgba(245,237,214,0.55);
  letter-spacing: 1px;
}

/* ── Pixel panel / card ── */
.panel {
  background: var(--cream);
  border: 4px solid var(--brown);
  box-shadow: 4px 4px 0 var(--brown);
  padding: 16px 18px;
  position: relative;
  margin-bottom: 16px;
}

.panel::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border: 2px solid var(--cream2);
  pointer-events: none;
}

.panel-title {
  font-family: var(--font-px);
  font-size: 8px;
  color: var(--brown);
  letter-spacing: 1px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-title::after {
  content: '';
  flex: 1;
  height: 2px;
  background: var(--cream2);
}

/* ── Section header ── */
.section-header {
  font-family: var(--font-px);
  font-size: 14px;
  color: var(--brown);
  text-shadow: 2px 2px 0 var(--cream2);
  margin-bottom: 6px;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-divider {
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--brown) 0, var(--brown) 6px, transparent 6px, transparent 10px);
  margin-bottom: 20px;
  opacity: 0.35;
}

/* ── Tags ── */
.tag {
  font-family: var(--font-px);
  font-size: 6px;
  padding: 4px 8px;
  background: var(--teal);
  color: var(--cream);
  border: 2px solid var(--brown);
  box-shadow: 2px 2px 0 var(--brown);
  cursor: default;
  transition: transform 0.1s, box-shadow 0.1s;
  letter-spacing: 0.5px;
  line-height: 1.4;
}
.tag:hover { transform: translate(-1px,-1px); box-shadow: 3px 3px 0 var(--brown); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

/* ── Buttons ── */
.btn {
  font-family: var(--font-px);
  font-size: 7px;
  padding: 8px 14px;
  background: var(--grass);
  color: var(--cream);
  border: 3px solid var(--brown);
  box-shadow: 3px 3px 0 var(--brown);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  letter-spacing: 0.5px;
  line-height: 1.4;
}
.btn:hover  { transform: translate(-1px,-1px); box-shadow: 4px 4px 0 var(--brown); }
.btn:active { transform: translate(2px,2px);   box-shadow: 1px 1px 0 var(--brown); }
.btn.gold   { background: var(--gold); color: var(--brown); }
.btn.teal   { background: var(--teal); }
.btn:disabled { opacity: 0.4; cursor: default; transform: none; }

/* ── Text ── */
.body-text {
  font-family: var(--font-vt);
  font-size: 17px;
  color: var(--text);
  line-height: 1.7;
}

/* ── Input ── */
.field {
  background: var(--cream2);
  border: 3px solid var(--brown);
  box-shadow: inset 2px 2px 0 rgba(0,0,0,0.08);
  color: var(--text);
  font-family: var(--font-vt);
  font-size: 16px;
  padding: 8px 10px;
  outline: none;
  letter-spacing: 0.5px;
  width: 100%;
}
.field:focus { border-color: var(--teal); }

/* ── Chat / Guestbook ── */
.chat-wrap {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 130px);
  max-height: 640px;
  gap: 0;
}

.chat-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(0,0,0,0.08);
  border: 3px solid var(--brown);
  border-bottom: none;
  font-family: var(--font-px);
  font-size: 7px;
  color: var(--text2);
  letter-spacing: 1px;
}

.chat-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 0;
  background: var(--teal);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  background: var(--cream2);
  border: 3px solid var(--brown);
  border-bottom: none;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scrollbar-width: thin;
}

.chat-msg { display: flex; flex-direction: column; gap: 3px; max-width: 88%; }
.chat-msg.user { align-self: flex-end; align-items: flex-end; }
.chat-msg.bot  { align-self: flex-start; align-items: flex-start; }

.chat-msg-sender {
  font-family: var(--font-px);
  font-size: 6px;
  color: var(--text2);
  letter-spacing: 1px;
}

.chat-msg-bubble {
  padding: 8px 12px;
  font-family: var(--font-vt);
  font-size: 17px;
  line-height: 1.5;
  border: 2px solid var(--brown);
  box-shadow: 2px 2px 0 var(--brown);
}
.chat-msg.user .chat-msg-bubble { background: var(--teal); color: var(--cream); }
.chat-msg.bot  .chat-msg-bubble { background: var(--cream); color: var(--text); }

.chat-typing {
  display: flex; gap: 4px; padding: 10px 12px;
  background: var(--cream);
  border: 2px solid var(--brown);
  box-shadow: 2px 2px 0 var(--brown);
  align-self: flex-start;
}
.chat-typing span {
  width: 7px; height: 7px; border-radius: 0;
  background: var(--brown);
  animation: typing-bounce 1s infinite;
}
.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-bounce {
  0%,60%,100% { transform: translateY(0); opacity:0.4; }
  30% { transform: translateY(-5px); opacity:1; }
}

.chat-input-row {
  display: flex;
  border: 3px solid var(--brown);
}
.chat-input {
  flex: 1;
  background: var(--cream);
  border: none;
  color: var(--text);
  font-family: var(--font-vt);
  font-size: 17px;
  padding: 10px 12px;
  outline: none;
}
.chat-input::placeholder { color: rgba(92,61,30,0.3); }
.chat-send {
  background: var(--grass);
  border: none;
  border-left: 3px solid var(--brown);
  color: var(--cream);
  font-family: var(--font-px);
  font-size: 8px;
  padding: 0 14px;
  cursor: pointer;
  transition: background 0.1s;
  letter-spacing: 0.5px;
}
.chat-send:hover { background: var(--grass2); }
.chat-send:disabled { opacity: 0.4; cursor: default; }

.chat-disclaimer {
  font-family: var(--font-px);
  font-size: 6px;
  color: var(--text2);
  opacity: 0.5;
  text-align: center;
  padding: 6px 0;
  letter-spacing: 1px;
}

/* ── Games ── */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.game-card {
  background: var(--cream);
  border: 4px solid var(--brown);
  box-shadow: 4px 4px 0 var(--brown);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.1s, box-shadow 0.1s;
}
.game-card:hover { transform: translate(-2px,-2px); box-shadow: 6px 6px 0 var(--brown); }

.game-title {
  font-family: var(--font-px);
  font-size: 8px;
  color: var(--brown);
  letter-spacing: 0.5px;
  line-height: 1.6;
}

/* Snake */
.snake-wrap { display: flex; flex-direction: column; align-items: center; gap: 10px; }
#snake-canvas { border: 4px solid var(--brown); box-shadow: 4px 4px 0 var(--brown); image-rendering: pixelated; display: block; }
.snake-score { font-family: var(--font-px); font-size: 10px; color: var(--brown); }

/* Typerace */
.typerace-wrap { display: flex; flex-direction: column; gap: 12px; max-width: 600px; }
.typerace-prompt {
  font-family: var(--font-vt); font-size: 18px; line-height: 1.8;
  padding: 14px; background: var(--cream2);
  border: 3px solid var(--brown); min-height: 80px; letter-spacing: 0.5px;
}
.typerace-input {
  background: var(--cream2); border: 3px solid var(--brown);
  color: var(--text); font-family: var(--font-vt);
  font-size: 17px; padding: 8px 12px; outline: none; width: 100%;
}
.typerace-input:focus { border-color: var(--teal); }
.typerace-stats { display: flex; gap: 20px; }
.typerace-stat { text-align: center; }
.typerace-stat-val { font-family: var(--font-px); font-size: 18px; color: var(--brown); line-height: 1; }
.typerace-stat-label { font-size: 11px; color: var(--text2); opacity: 0.6; letter-spacing: 1px; margin-top: 2px; }

.char-done    { color: var(--green); }
.char-wrong   { color: #c0392b; background: rgba(192,57,43,0.1); }
.char-current { border-bottom: 2px solid var(--brown); }
.char-pending { color: var(--text2); opacity: 0.5; }

/* Multiplayer lobby */
.lobby-wrap { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; padding: 4px 0; }
.room-code {
  font-family: var(--font-px); font-size: 28px;
  color: var(--teal); letter-spacing: 6px;
  text-shadow: 2px 2px 0 var(--brown);
}

/* Modal */
.modal-bg {
  position: fixed; inset: 0;
  background: rgba(58,37,16,0.5);
  z-index: 500; display: flex;
  align-items: center; justify-content: center;
}
.modal-box {
  background: var(--cream);
  border: 4px solid var(--brown);
  box-shadow: 6px 6px 0 var(--brown);
  padding: 24px; min-width: 300px; position: relative;
}
.modal-close {
  position: absolute; top: 8px; right: 10px;
  background: none; border: none;
  color: var(--brown); font-family: var(--font-px);
  font-size: 10px; cursor: pointer;
}
.modal-title {
  font-family: var(--font-px); font-size: 9px;
  color: var(--brown); margin-bottom: 14px; letter-spacing: 1px;
}

/* Pong */
#pong-canvas { border: 4px solid var(--brown); box-shadow: 4px 4px 0 var(--brown); display: block; max-width: 100%; }

/* Chess */
.chess-wrap { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }

/* ── Blinking cursor ── */
.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ── Cloud decorations ── */
.clouds {
  position: fixed; top: 0; left: var(--sidebar-w); right: 0;
  height: 100vh; pointer-events: none; z-index: 2; overflow: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--cream2); }
::-webkit-scrollbar-thumb { background: var(--brown); }

/* ── Pixel stars in sidebar ── */
.pixel-star {
  width: 4px; height: 4px;
  background: var(--gold);
  display: inline-block;
  box-shadow: 1px 1px 0 var(--brown);
}

/* ── Chat ambient effects ── */
@keyframes chatWordFloat {
  0%   { transform: translateY(0);      opacity: 0.85; }
  15%  { opacity: 0.9; }
  75%  { opacity: 0.55; }
  100% { transform: translateY(-92vh);  opacity: 0; }
}

@keyframes flowerGrow {
  0%   { transform: scaleY(0); opacity: 1; }
  20%  { transform: scaleY(1); opacity: 1; }
  70%  { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ── Tab bar (mobile nav, hidden on desktop) ── */
.tab-bar { display: none; }

/* ── Mobile layout ── */
@media (max-width: 640px) {
  :root {
    --sidebar-w: 0px;
  }

  .sidebar { display: none; }

  .tab-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 56px;
    background: var(--wood);
    border-top: 4px solid var(--wood2);
    box-shadow: 0 -4px 0 var(--dirt2);
    z-index: 300;
  }

  .tab-bar-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    border-top: 3px solid transparent;
    color: var(--cream);
    font-family: var(--font-px);
    font-size: 6px;
    padding: 6px 4px 4px;
    cursor: pointer;
    letter-spacing: 0px;
    line-height: 1.4;
    text-shadow: 1px 1px 0 var(--brown);
  }
  .tab-bar-btn .tab-icon { font-size: 16px; line-height: 1; }
  .tab-bar-btn.active {
    border-top-color: var(--gold);
    color: var(--gold);
    background: rgba(0,0,0,0.18);
  }

  .main {
    padding: 16px 14px;
    padding-bottom: 72px;
  }

  .ground-strip { display: none; }

  .chat-wrap {
    height: calc(100vh - 56px - 80px);
    max-height: none;
  }

  .modal-box {
    min-width: 0;
    width: calc(100vw - 32px);
    max-width: 400px;
  }

  #snake-canvas,
  #pong-canvas {
    max-width: calc(100vw - 28px);
    height: auto;
  }
}