/* ===== DESIGN TOKENS ===== */
:root {
  --bg: #090912;
  --surface: #0f0f1e;
  --surface2: #161628;
  --border: rgba(0,255,200,0.15);
  --cyan: #00ffe0;
  --magenta: #ff2d9b;
  --yellow: #ffe600;
  --purple: #a855f7;
  --text: #e2e8f0;
  --muted: #6b7280;
  --glow-cyan: 0 0 20px rgba(0,255,224,0.4), 0 0 60px rgba(0,255,224,0.1);
  --glow-mag: 0 0 20px rgba(255,45,155,0.4), 0 0 60px rgba(255,45,155,0.1);
  --font-display: 'Orbitron', monospace;
  --font-body: 'Exo 2', sans-serif;
  --radius: 16px;
  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.06) 2px,
    rgba(0,0,0,0.06) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Grid background */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,224,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,224,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

main, header, footer { position: relative; z-index: 1; }

/* ===== HEADER ===== */
header {
  text-align: center;
  padding: 40px 20px 30px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,255,224,0.04) 0%, transparent 100%);
}

.logo {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: 6px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px rgba(0,255,224,0.3));
  animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
  from { filter: drop-shadow(0 0 20px rgba(0,255,224,0.3)); }
  to   { filter: drop-shadow(0 0 40px rgba(255,45,155,0.5)); }
}

.tagline {
  font-size: 0.85rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 6px;
}

/* ===== NAV ===== */
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

nav a {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cyan);
  padding: 8px 16px;
  border: 1px solid rgba(0,255,224,0.3);
  border-radius: 4px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

nav a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--cyan);
  opacity: 0;
  transition: var(--transition);
}

nav a:hover::before { opacity: 0.1; }
nav a:hover { box-shadow: var(--glow-cyan); border-color: var(--cyan); }

/* ===== BADGE ===== */
.new-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 1px;
  background: var(--magenta);
  color: white;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ===== MAIN LAYOUT ===== */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* ===== SECTION CARD ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: cardIn 0.5s ease both;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }

@keyframes cardIn {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: var(--transition);
}

.card:hover::before { opacity: 1; }
.card:hover { border-color: rgba(0,255,224,0.3); box-shadow: 0 0 40px rgba(0,255,224,0.06); }

.card h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card h2 .icon { font-size: 1.2rem; }

/* ===== BUTTONS ===== */
.btn {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 10px 20px;
  border: 1px solid;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
}

.btn-cyan  { color: var(--cyan);    border-color: var(--cyan); }
.btn-cyan:hover  { background: rgba(0,255,224,0.1);  box-shadow: var(--glow-cyan); }

.btn-mag   { color: var(--magenta); border-color: var(--magenta); }
.btn-mag:hover   { background: rgba(255,45,155,0.1); box-shadow: var(--glow-mag); }

.btn-yellow { color: var(--yellow); border-color: var(--yellow); }
.btn-yellow:hover { background: rgba(255,230,0,0.1); box-shadow: 0 0 20px rgba(255,230,0,0.3); }

/* ===== STATUS BAR ===== */
.status-bar {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 8px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 20px;
  color: var(--yellow);
  min-height: 36px;
  display: flex;
  align-items: center;
}

/* ===== TIC-TAC-TOE ===== */
.ttt-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.score-board { display: flex; gap: 12px; }

.score-item {
  text-align: center;
  padding: 8px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.score-label { font-size: 0.6rem; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }
.score-val   { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; }
.score-x .score-val { color: var(--cyan); }
.score-o .score-val { color: var(--magenta); }
.score-d .score-val { color: var(--muted); }

.board {
  display: grid;
  grid-template-columns: repeat(3, 80px);
  gap: 8px;
  justify-content: center;
  margin: 0 auto;
}

.cell {
  width: 80px;
  height: 80px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.cell:hover:empty  { border-color: rgba(0,255,224,0.5); background: rgba(0,255,224,0.05); }
.cell.x { color: var(--cyan);    text-shadow: 0 0 20px var(--cyan); }
.cell.o { color: var(--magenta); text-shadow: 0 0 20px var(--magenta); }

.cell.win {
  animation: winPulse 0.6s ease forwards;
}
@keyframes winPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.2); }
  100% { transform: scale(1.05); }
}

.cell.pop {
  animation: cellPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes cellPop {
  0%   { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.ttt-controls { display: flex; gap: 10px; margin-top: 20px; flex-wrap: wrap; }

/* ===== CALCULATOR ===== */
.calc-wrap { max-width: 300px; }

#calc-display {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-display);
  font-size: 1.6rem;
  text-align: right;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--cyan);
  margin-bottom: 12px;
  outline: none;
  letter-spacing: 2px;
}

#calc-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.calc-btn {
  padding: 14px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 1px;
}

.calc-btn:hover { background: rgba(0,255,224,0.08); border-color: var(--cyan); color: var(--cyan); }
.calc-btn.op    { color: var(--magenta); border-color: rgba(255,45,155,0.3); }
.calc-btn.op:hover { background: rgba(255,45,155,0.1); border-color: var(--magenta); }
.calc-btn.eq    { background: linear-gradient(135deg, var(--cyan), #00b8a0); color: #000; border: none; font-weight: 900; }
.calc-btn.eq:hover { filter: brightness(1.2); box-shadow: var(--glow-cyan); }
.calc-btn.clear { color: var(--yellow); border-color: rgba(255,230,0,0.3); }
.calc-btn.clear:hover { background: rgba(255,230,0,0.08); border-color: var(--yellow); }

/* ===== JOKES ===== */
#joke-display {
  font-size: 1.1rem;
  line-height: 1.7;
  padding: 20px;
  background: var(--surface2);
  border-left: 3px solid var(--magenta);
  border-radius: 0 10px 10px 0;
  margin-bottom: 16px;
  min-height: 80px;
  font-style: italic;
  color: var(--text);
  transition: var(--transition);
}

/* ===== MEMORY GAME ===== */
.memory-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.memory-stats { display: flex; gap: 12px; }

.memory-stat {
  padding: 8px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 1px;
}

.memory-stat span { color: var(--yellow); }

.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  max-width: 400px;
}

.mem-card {
  aspect-ratio: 1;
  cursor: pointer;
  perspective: 600px;
  border-radius: 10px;
}

.mem-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 10px;
}

.mem-card.flipped .mem-card-inner,
.mem-card.matched .mem-card-inner { transform: rotateY(180deg); }
.mem-card.matched .mem-card-front  { border-color: var(--cyan); box-shadow: var(--glow-cyan); }

.mem-card-back,
.mem-card-front {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.mem-card-back  { background: var(--surface2); font-size: 1.5rem; color: var(--muted); }
.mem-card-back::after { content: '\u2726'; }
.mem-card-front { background: var(--surface); transform: rotateY(180deg); font-size: 1.8rem; }

/* ===== TRIVIA QUIZ ===== */
.quiz-question {
  font-size: 1.1rem;
  line-height: 1.7;
  padding: 20px;
  background: var(--surface2);
  border-left: 3px solid var(--purple);
  border-radius: 0 10px 10px 0;
  margin-bottom: 16px;
  min-height: 80px;
}

.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.quiz-opt {
  padding: 12px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}

.quiz-opt:hover:not(:disabled) { border-color: var(--purple); background: rgba(168,85,247,0.08); color: var(--purple); }
.quiz-opt.correct { border-color: var(--cyan);    background: rgba(0,255,224,0.1);   color: var(--cyan); }
.quiz-opt.wrong   { border-color: var(--magenta); background: rgba(255,45,155,0.1);  color: var(--magenta); }
.quiz-opt:disabled { cursor: default; }

.quiz-score-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.q-stat {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 1px;
}

.q-stat span { color: var(--yellow); }

/* ===== QUOTE GENERATOR ===== */
#quote-display {
  font-size: 1.2rem;
  line-height: 1.8;
  text-align: center;
  padding: 28px 24px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 16px;
  min-height: 100px;
  position: relative;
}

#quote-display::before {
  content: '"';
  position: absolute;
  top: 10px; left: 16px;
  font-size: 4rem;
  color: rgba(0,255,224,0.1);
  font-family: Georgia, serif;
  line-height: 1;
}

#quote-author {
  display: block;
  margin-top: 10px;
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ===== COLOR PALETTE ===== */
.palette-row {
  display: flex;
  gap: 12px;
  height: 100px;
  margin-bottom: 16px;
  border-radius: 12px;
  overflow: hidden;
}

.pal-color {
  flex: 1;
  display: flex;
  align-items: flex-end;
  padding: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.pal-color:hover { flex: 1.5; }

.pal-hex {
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 1px;
  background: rgba(0,0,0,0.5);
  padding: 3px 6px;
  border-radius: 3px;
  color: white;
  width: 100%;
  text-align: center;
}

/* ===== COPY TOAST ===== */
.copy-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--cyan);
  color: #000;
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  padding: 10px 20px;
  border-radius: 6px;
  opacity: 0;
  transition: all 0.3s;
  z-index: 1000;
  pointer-events: none;
}

.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== LOADER ===== */
.loader {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

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

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 30px 20px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--muted);
  font-family: var(--font-display);
}

footer span { color: var(--cyan); }

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .card { padding: 20px; }
  .board { grid