/* ========================================
   UP.LY — Retro Arcade Landing Page
   8-bit pixel-art aesthetic
   ======================================== */

/* --- CSS Variables --- */
:root {
  --c-bg: #0a0a1a;
  --c-bg-alt: #0f0f2a;
  --c-surface: #141430;
  --c-border: #2a2a5a;
  --c-text: #c8c8e8;
  --c-text-dim: #6a6a9a;
  --c-accent: #00ff88;
  --c-accent-glow: rgba(0, 255, 136, 0.4);
  --c-hot: #ff4466;
  --c-hot-glow: rgba(255, 68, 102, 0.4);
  --c-gold: #ffd700;
  --c-gold-glow: rgba(255, 215, 0, 0.3);
  --c-cyan: #00e5ff;
  --c-cyan-glow: rgba(0, 229, 255, 0.3);
  --c-purple: #b347ff;
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'VT323', monospace;
  --font-ui: 'Silkscreen', sans-serif;
  --pixel: 4px;
  --maxw: 1100px;
  --transition: 0.2s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--c-bg);
  color: var(--c-text);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
  image-rendering: pixelated;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* --- Scanline Overlay --- */
.scanlines {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
}

/* --- Pixel Grid Background --- */
.pixel-grid {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(42,42,90,0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,42,90,0.15) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* --- Floating Particles --- */
.particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.particle {
  position: absolute; display: block;
  width: 4px; height: 4px;
  background: var(--c-accent);
  box-shadow: 0 0 6px var(--c-accent-glow);
  animation: floatUp 8s linear infinite;
  opacity: 0;
}
.p1 { left: 10%; animation-delay: 0s; background: var(--c-accent); }
.p2 { left: 25%; animation-delay: 1.2s; background: var(--c-hot); box-shadow: 0 0 6px var(--c-hot-glow); }
.p3 { left: 40%; animation-delay: 2.5s; background: var(--c-gold); box-shadow: 0 0 6px var(--c-gold-glow); }
.p4 { left: 55%; animation-delay: 0.8s; background: var(--c-cyan); box-shadow: 0 0 6px var(--c-cyan-glow); }
.p5 { left: 70%; animation-delay: 3.2s; background: var(--c-purple); }
.p6 { left: 85%; animation-delay: 1.8s; background: var(--c-accent); }
.p7 { left: 15%; animation-delay: 4.5s; background: var(--c-hot); box-shadow: 0 0 6px var(--c-hot-glow); }
.p8 { left: 90%; animation-delay: 5.1s; background: var(--c-gold); box-shadow: 0 0 6px var(--c-gold-glow); }

@keyframes floatUp {
  0% { transform: translateY(100vh) scale(1); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(0.5); opacity: 0; }
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,26,0.92);
  border-bottom: 2px solid var(--c-border);
  backdrop-filter: blur(8px);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-icon {
  font-size: 20px; color: var(--c-accent);
  text-shadow: 0 0 12px var(--c-accent-glow);
  animation: pulse 2s ease-in-out infinite;
}
.logo-text {
  font-family: var(--font-pixel);
  font-size: 16px; color: #fff;
  letter-spacing: 2px;
}
.nav-links { display: flex; gap: 28px; }
.nav-link {
  font-family: var(--font-ui);
  font-size: 14px; color: var(--c-text-dim);
  letter-spacing: 1px;
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--c-accent);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--c-accent); }
.nav-link:hover::after { width: 100%; }

/* --- Pixel Buttons --- */
.pixel-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-pixel);
  font-size: 11px; letter-spacing: 1px;
  padding: 10px 20px;
  background: var(--c-accent);
  color: var(--c-bg);
  border: none; cursor: pointer;
  box-shadow:
    inset -3px -3px 0 rgba(0,0,0,0.25),
    inset 3px 3px 0 rgba(255,255,255,0.15),
    0 0 16px var(--c-accent-glow);
  transition: transform var(--transition), box-shadow var(--transition);
  image-rendering: pixelated;
}
.pixel-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    inset -3px -3px 0 rgba(0,0,0,0.25),
    inset 3px 3px 0 rgba(255,255,255,0.15),
    0 0 28px var(--c-accent-glow);
}
.pixel-btn:active { transform: translateY(1px); }

.pixel-btn--sm { font-size: 9px; padding: 8px 14px; }

.pixel-btn--primary {
  background: var(--c-hot);
  box-shadow:
    inset -3px -3px 0 rgba(0,0,0,0.3),
    inset 3px 3px 0 rgba(255,255,255,0.12),
    0 0 16px var(--c-hot-glow);
}
.pixel-btn--primary:hover {
  box-shadow:
    inset -3px -3px 0 rgba(0,0,0,0.3),
    inset 3px 3px 0 rgba(255,255,255,0.12),
    0 0 28px var(--c-hot-glow);
}

.pixel-btn--large {
  font-size: 14px; padding: 16px 36px;
  animation: btnGlow 2s ease-in-out infinite alternate;
}

@keyframes btnGlow {
  from { box-shadow: inset -3px -3px 0 rgba(0,0,0,0.25), inset 3px 3px 0 rgba(255,255,255,0.15), 0 0 16px var(--c-accent-glow); }
  to { box-shadow: inset -3px -3px 0 rgba(0,0,0,0.25), inset 3px 3px 0 rgba(255,255,255,0.15), 0 0 40px var(--c-accent-glow), 0 0 60px rgba(0,255,136,0.15); }
}

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ===== HERO ===== */
.hero {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 24px 60px;
}
.hero-inner { max-width: 720px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-ui); font-size: 12px;
  color: var(--c-accent); letter-spacing: 2px;
  padding: 6px 16px;
  border: 1px solid var(--c-accent);
  margin-bottom: 32px;
  animation: fadeSlideDown 0.8s ease-out both;
}
.badge-dot {
  width: 6px; height: 6px; background: var(--c-accent);
  box-shadow: 0 0 8px var(--c-accent-glow);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-family: var(--font-pixel);
  line-height: 1.5;
  margin-bottom: 24px;
}
.title-line { display: block; }
.title-line--1 {
  font-size: clamp(28px, 5vw, 48px);
  color: #fff;
  animation: fadeSlideDown 0.8s 0.2s ease-out both;
}
.title-line--2 {
  font-size: clamp(22px, 4vw, 38px);
  color: var(--c-text);
  animation: fadeSlideDown 0.8s 0.4s ease-out both;
}
.title-accent {
  color: var(--c-accent);
  text-shadow: 0 0 20px var(--c-accent-glow), 0 0 40px rgba(0,255,136,0.15);
}

.hero-sub {
  font-family: var(--font-body);
  font-size: 22px;
  color: var(--c-text-dim);
  margin-bottom: 40px;
  line-height: 1.7;
  animation: fadeSlideDown 0.8s 0.6s ease-out both;
}

/* --- URL Input --- */
.hero-input-wrap {
  display: flex; gap: 0;
  max-width: 560px; margin: 0 auto 16px;
  animation: fadeSlideDown 0.8s 0.8s ease-out both;
}
.input-box {
  flex: 1; position: relative;
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  border-right: none;
}
.pixel-input {
  width: 100%;
  font-family: var(--font-body);
  font-size: 18px;
  padding: 14px 16px;
  background: transparent;
  border: none; outline: none;
  color: var(--c-text);
}
.pixel-input::placeholder { color: var(--c-text-dim); }
.pixel-input:focus ~ .input-cursor { opacity: 1; }
.input-cursor {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  width: 2px; height: 20px;
  background: var(--c-accent);
  animation: blink 0.8s step-end infinite;
  opacity: 0; pointer-events: none;
}
.hero-input-wrap .pixel-btn--primary { border: 2px solid var(--c-hot); }

.hero-hint {
  font-family: var(--font-ui); font-size: 11px;
  color: var(--c-text-dim); letter-spacing: 1px;
  animation: fadeSlideDown 0.8s 1s ease-out both;
}

/* --- Character Sprite --- */
.hero-character {
  position: absolute; bottom: 80px; right: 8%;
  display: flex; flex-direction: column; align-items: center;
}
.character-sprite {
  width: 48px; height: 48px;
  background: var(--c-accent);
  box-shadow:
    0 -16px 0 0 var(--c-accent),
    16px 0 0 0 var(--c-accent),
    -16px 0 0 0 var(--c-accent),
    0 16px 0 0 var(--c-accent),
    16px -16px 0 0 var(--c-bg),
    -16px -16px 0 0 var(--c-bg),
    16px 16px 0 0 var(--c-bg),
    -16px 16px 0 0 var(--c-bg);
  animation: spriteHover 1.5s ease-in-out infinite;
  image-rendering: pixelated;
}
.character-shadow {
  width: 40px; height: 8px; margin-top: 12px;
  background: rgba(0,255,136,0.15);
  border-radius: 50%;
  animation: shadowPulse 1.5s ease-in-out infinite;
}
@keyframes spriteHover {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes shadowPulse {
  0%,100% { transform: scaleX(1); opacity: 0.4; }
  50% { transform: scaleX(0.7); opacity: 0.2; }
}

/* --- Scroll Indicator --- */
.scroll-indicator {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  margin-top: auto; padding-top: 40px;
}
.scroll-arrow {
  font-size: 14px; color: var(--c-text-dim);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
.scroll-label { font-family: var(--font-ui); font-size: 10px; color: var(--c-text-dim); letter-spacing: 2px; }
@keyframes scrollBounce {
  0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); }
}

/* ===== SECTION TITLES ===== */
.section-title {
  font-family: var(--font-pixel);
  font-size: clamp(18px, 3vw, 26px);
  color: #fff; text-align: center;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.title-decor {
  color: var(--c-gold);
  text-shadow: 0 0 10px var(--c-gold-glow);
  margin: 0 8px;
}
.section-sub {
  font-family: var(--font-body); font-size: 20px;
  color: var(--c-text-dim); text-align: center;
  margin-bottom: 48px;
}

/* ===== STATS ===== */
.stats {
  position: relative; z-index: 1;
  padding: 80px 24px;
  background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-alt) 100%);
}
.stats-inner { max-width: var(--maxw); margin: 0 auto; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px; margin-top: 40px;
}
.stat-card {
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  padding: 28px 24px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
}

.stat-value {
  font-family: var(--font-pixel);
  font-size: 24px; color: var(--c-accent);
  text-shadow: 0 0 16px var(--c-accent-glow);
  margin-bottom: 8px;
}
.stat-label {
  font-family: var(--font-ui);
  font-size: 11px; color: var(--c-text-dim);
  letter-spacing: 2px; margin-bottom: 14px;
}
.stat-bar {
  height: 6px; background: var(--c-bg);
  border: 1px solid var(--c-border);
  overflow: hidden;
}
.stat-bar-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--c-accent), var(--c-cyan));
  transition: width 1.5s ease-out;
}
.stat-card.in-view .stat-bar-fill { width: var(--fill); }

/* ===== FEATURES ===== */
.features {
  position: relative; z-index: 1;
  padding: 80px 24px;
}
.features-inner { max-width: var(--maxw); margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  padding: 32px 24px;
  transition: border-color var(--transition), transform var(--transition);
}
.feature-card:hover {
  border-color: var(--c-gold);
  transform: translateY(-4px);
}

.feature-title {
  font-family: var(--font-pixel);
  font-size: 12px; color: #fff;
  letter-spacing: 1px; margin-bottom: 10px;
}
.feature-desc {
  font-family: var(--font-body);
  font-size: 18px; color: var(--c-text-dim);
  line-height: 1.5; margin-bottom: 18px;
}
.feature-meter {
  display: flex; align-items: center; gap: 8px;
}
.meter-label {
  font-family: var(--font-pixel);
  font-size: 8px; color: var(--c-text-dim);
  min-width: 28px;
}
.meter-bar {
  flex: 1; height: 8px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  overflow: hidden;
}
.meter-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--c-gold), var(--c-hot));
  transition: width 1.2s ease-out;
}
.feature-card.in-view .meter-fill { width: var(--w); }

/* ===== HOW TO PLAY ===== */
.how-to-play {
  position: relative; z-index: 1;
  padding: 80px 24px;
  background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-alt) 100%);
}
.how-inner { max-width: var(--maxw); margin: 0 auto; }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px; margin-top: 48px;
}
.step-card {
  background: var(--c-surface);
  border: 2px solid var(--c-border);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: border-color var(--transition);
}
.step-card:hover { border-color: var(--c-cyan); }
.step-number {
  font-family: var(--font-pixel);
  font-size: 32px;
  color: var(--c-cyan);
  text-shadow: 0 0 16px var(--c-cyan-glow);
  margin-bottom: 12px;
}

.step-title {
  font-family: var(--font-pixel);
  font-size: 12px; color: #fff;
  margin-bottom: 10px; letter-spacing: 1px;
}
.step-desc {
  font-family: var(--font-body);
  font-size: 18px; color: var(--c-text-dim);
  line-height: 1.5;
}

/* ===== CTA ===== */
.cta-section {
  position: relative; z-index: 1;
  padding: 80px 24px;
}
.cta-inner { max-width: 640px; margin: 0 auto; }
.cta-box {
  background: var(--c-surface);
  border: 3px solid var(--c-accent);
  box-shadow: 0 0 40px var(--c-accent-glow), inset 0 0 60px rgba(0,255,136,0.03);
  padding: 56px 40px;
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-coins { position: absolute; top: 16px; right: 20px; display: flex; gap: 6px; }
.coin {
  display: block; width: 12px; height: 12px;
  color: var(--c-gold);
  text-shadow: 0 0 8px var(--c-gold-glow);
  font-size: 12px; line-height: 1;
  animation: coinSpin 1.5s ease-in-out infinite;
}
.c2 { animation-delay: 0.3s; }
.c3 { animation-delay: 0.6s; }
@keyframes coinSpin {
  0%,100% { transform: scaleX(1); } 50% { transform: scaleX(0.2); }
}
.cta-title {
  font-family: var(--font-pixel);
  font-size: clamp(18px, 3vw, 28px);
  color: #fff; margin-bottom: 16px;
}
.cta-sub {
  font-family: var(--font-body);
  font-size: 22px; color: var(--c-text-dim);
  margin-bottom: 32px; line-height: 1.6;
}
.cta-note {
  font-family: var(--font-ui);
  font-size: 10px; color: var(--c-text-dim);
  letter-spacing: 2px; margin-top: 20px;
}

/* ===== FOOTER ===== */
.footer {
  position: relative; z-index: 1;
  padding: 48px 24px 24px;
  border-top: 2px solid var(--c-border);
  background: var(--c-bg-alt);
}
.footer-inner { max-width: var(--maxw); margin: 0 auto; }
.footer-top {
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-border);
}
.footer-logo {
  font-family: var(--font-pixel);
  font-size: 14px; color: var(--c-accent);
}
.footer-tagline {
  font-family: var(--font-body);
  font-size: 16px; color: var(--c-text-dim);
  margin-top: 8px;
}
.footer-links-group { display: flex; gap: 48px; flex-wrap: wrap; }
.footer-col-title {
  font-family: var(--font-pixel);
  font-size: 9px; color: #fff;
  letter-spacing: 2px; margin-bottom: 12px;
}
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  font-family: var(--font-body);
  font-size: 16px; color: var(--c-text-dim);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--c-accent); }
.footer-bottom {
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  padding-top: 24px;
  font-family: var(--font-ui);
  font-size: 11px; color: var(--c-text-dim);
  letter-spacing: 1px;
}
.footer-credit { color: var(--c-hot); }

/* ===== PIXEL ART ICONS (CSS box-shadow sprites) ===== */
.px-icon {
  display: inline-block;
  width: 4px; height: 4px;
  background: transparent;
  image-rendering: pixelated;
  vertical-align: middle;
  position: relative;
}

/* Large variant for feature / step icons */
.px-lg {
  transform: scale(2);
  display: block;
  margin: 16px auto 20px;
}

/* Stat section icons — bigger, more breathing room */
.stat-icon {
  font-size: 32px;
  margin-bottom: 16px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.stat-icon .px-icon {
  transform: scale(2.2);
}

/* Step section icon wrapper */
.step-icon {
  font-size: 32px;
  margin-bottom: 16px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Feature icon wrapper */
.feature-icon-wrap {
  margin-bottom: 20px;
  min-height: 48px;
  display: flex;
  align-items: center;
}
.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  filter: none;
}

/* --- Bolt / Lightning --- */
.px-bolt {
  color: var(--c-gold);
  box-shadow:
    8px 0 0 currentColor,
    12px 0 0 currentColor,
    4px 4px 0 currentColor,
    8px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    4px 12px 0 currentColor,
    8px 12px 0 currentColor,
    0px 16px 0 currentColor,
    4px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-gold-glow));
}

/* --- Link / Chain --- */
.px-link {
  color: var(--c-cyan);
  box-shadow:
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    0px 4px 0 currentColor,
    12px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    0px 12px 0 currentColor,
    12px 12px 0 currentColor,
    4px 16px 0 currentColor,
    8px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-cyan-glow));
}

/* --- Cursor / Click --- */
.px-cursor {
  color: var(--c-accent);
  box-shadow:
    0px 0 0 currentColor,
    0px 4px 0 currentColor,
    0px 8px 0 currentColor,
    0px 12px 0 currentColor,
    0px 16px 0 currentColor,
    4px 4px 0 currentColor,
    4px 12px 0 currentColor,
    8px 8px 0 currentColor,
    4px 16px 0 currentColor,
    8px 16px 0 currentColor,
    -4px 4px 0 currentColor,
    -4px 12px 0 currentColor,
    -8px 8px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-accent-glow));
}

/* --- Joystick --- */
.px-joystick {
  color: var(--c-hot);
  box-shadow:
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    4px 4px 0 currentColor,
    8px 4px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    0px 12px 0 currentColor,
    4px 12px 0 currentColor,
    8px 12px 0 currentColor,
    12px 12px 0 currentColor,
    0px 16px 0 currentColor,
    4px 16px 0 currentColor,
    8px 16px 0 currentColor,
    12px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-hot-glow));
}

/* --- Heart --- */
.px-heart {
  color: var(--c-hot);
  box-shadow:
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    16px 0 0 currentColor,
    20px 0 0 currentColor,
    0px 4px 0 currentColor,
    4px 4px 0 currentColor,
    8px 4px 0 currentColor,
    12px 4px 0 currentColor,
    16px 4px 0 currentColor,
    20px 4px 0 currentColor,
    24px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    16px 8px 0 currentColor,
    20px 8px 0 currentColor,
    24px 8px 0 currentColor,
    4px 12px 0 currentColor,
    8px 12px 0 currentColor,
    12px 12px 0 currentColor,
    16px 12px 0 currentColor,
    20px 12px 0 currentColor,
    8px 16px 0 currentColor,
    12px 16px 0 currentColor,
    16px 16px 0 currentColor,
    12px 20px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-hot-glow));
  animation: heartbeat 1.2s ease-in-out infinite;
}
@keyframes heartbeat {
  0%,100% { transform: scale(1.8); }
  50% { transform: scale(2); }
}

/* --- Chart / Bar Graph --- */
.px-chart {
  color: var(--c-purple);
  box-shadow:
    0px 12px 0 currentColor,
    0px 16px 0 currentColor,
    4px 8px 0 currentColor,
    4px 12px 0 currentColor,
    4px 16px 0 currentColor,
    8px 4px 0 currentColor,
    8px 8px 0 currentColor,
    8px 12px 0 currentColor,
    8px 16px 0 currentColor,
    12px 0px 0 currentColor,
    12px 4px 0 currentColor,
    12px 8px 0 currentColor,
    12px 12px 0 currentColor,
    12px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px rgba(179,71,255,0.4));
}

/* --- Paint / Palette --- */
.px-paint {
  color: var(--c-gold);
  box-shadow:
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    12px 0 0 currentColor,
    0px 4px 0 currentColor,
    4px 4px 0 var(--c-hot),
    8px 4px 0 currentColor,
    12px 4px 0 var(--c-cyan),
    16px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    16px 8px 0 currentColor,
    0px 12px 0 currentColor,
    4px 12px 0 var(--c-accent),
    8px 12px 0 currentColor,
    12px 12px 0 var(--c-purple),
    16px 12px 0 currentColor,
    4px 16px 0 currentColor,
    8px 16px 0 currentColor,
    12px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-gold-glow));
}

/* --- Shield --- */
.px-shield {
  color: var(--c-cyan);
  box-shadow:
    0px 0 0 currentColor,
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    12px 0 0 currentColor,
    16px 0 0 currentColor,
    0px 4px 0 currentColor,
    4px 4px 0 currentColor,
    8px 4px 0 #fff,
    12px 4px 0 currentColor,
    16px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 #fff,
    12px 8px 0 currentColor,
    16px 8px 0 currentColor,
    4px 12px 0 currentColor,
    8px 12px 0 currentColor,
    12px 12px 0 currentColor,
    8px 16px 0 currentColor;
  filter: drop-shadow(0 0 6px var(--c-cyan-glow));
}

/* --- Paste / Clipboard --- */
.px-paste {
  color: var(--c-text);
  box-shadow:
    4px 0 0 currentColor,
    8px 0 0 currentColor,
    0px 4px 0 currentColor,
    4px 4px 0 var(--c-accent),
    8px 4px 0 var(--c-accent),
    12px 4px 0 currentColor,
    0px 8px 0 currentColor,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    0px 12px 0 currentColor,
    4px 12px 0 var(--c-accent),
    8px 12px 0 var(--c-accent),
    12px 12px 0 currentColor,
    0px 16px 0 currentColor,
    4px 16px 0 currentColor,
    8px 16px 0 currentColor,
    12px 16px 0 currentColor;
}

/* --- Rocket --- */
.px-rocket {
  color: var(--c-accent);
  box-shadow:
    8px 0 0 #fff,
    4px 4px 0 #fff,
    8px 4px 0 #fff,
    12px 4px 0 #fff,
    4px 8px 0 currentColor,
    8px 8px 0 currentColor,
    12px 8px 0 currentColor,
    4px 12px 0 currentColor,
    8px 12px 0 currentColor,
    12px 12px 0 currentColor,
    0px 16px 0 var(--c-hot),
    4px 16px 0 var(--c-hot),
    12px 16px 0 var(--c-hot),
    16px 16px 0 var(--c-hot),
    4px 20px 0 var(--c-gold),
    8px 20px 0 var(--c-gold),
    12px 20px 0 var(--c-gold);
  filter: drop-shadow(0 0 6px var(--c-accent-glow));
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero-character { display: none; }
  .hero-input-wrap { flex-direction: column; }
  .input-box { border-right: 2px solid var(--c-border); border-bottom: none; }
  .footer-top { flex-direction: column; }
  .cta-box { padding: 40px 24px; }
}