.color-harmonies-app{--ch-chip-width: 110px;--ch-chip-height: 180px;--ch-gap: 18px;position:relative;min-height:calc(100vh - 100px);background:var(--bg)}.color-harmonies-app:before{content:"";position:absolute;inset:0;background-image:radial-gradient(var(--black) 1.5px,transparent 1.5px);background-size:28px 28px;opacity:.06;pointer-events:none;z-index:0}.ch-layout{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:48px 28px 56px}.ch-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-bottom:24px;margin-bottom:40px;border-bottom:4px solid var(--black)}.ch-header-left{display:flex;align-items:center;gap:10px;flex-shrink:0}.ch-badge{font-family:var(--font-mono);font-size:9px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;background:var(--yellow-hot);border:2px solid var(--black);padding:3px 8px;display:inline-flex;align-items:center;gap:5px}.ch-badge:before{content:"";width:5px;height:5px;background:var(--black);animation:ch-pulse 2s ease-in-out infinite}@keyframes ch-pulse{0%,to{opacity:1}50%{opacity:.2}}.ch-title{font-family:var(--font-heading);font-size:15px;font-weight:700;letter-spacing:-.5px;text-transform:uppercase}.ch-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.ch-field{display:flex;align-items:center;gap:10px;padding:8px 12px;background:var(--surface);border:3px solid var(--black);box-shadow:var(--shadow)}.ch-field label{font-family:var(--font-mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--black);opacity:.6}.color-harmonies-app input[type=color]{-webkit-appearance:none;appearance:none;width:36px;height:36px;border:3px solid var(--black);padding:0;cursor:pointer;background:none}.color-harmonies-app input[type=color]::-webkit-color-swatch-wrapper{padding:0}.color-harmonies-app input[type=color]::-webkit-color-swatch{border:none}.ch-hex{width:100px;padding:8px 10px;border:3px solid var(--black);background:var(--bg);font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--black);outline:none;text-transform:uppercase}.ch-hex:focus{background:var(--yellow)}.color-harmonies-app .ch-btn{font-family:var(--font-heading);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:10px 16px;border:3px solid var(--black);background:var(--surface);box-shadow:var(--shadow);cursor:pointer;transition:all .08s ease;color:var(--black)}.color-harmonies-app .ch-btn:hover{background:#f0f0ec;transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--black)}.color-harmonies-app .ch-btn:active{box-shadow:0 0 0 var(--black);transform:translate(4px,4px)}.color-harmonies-app .ch-btn.yellow{background:var(--yellow-hot)}.color-harmonies-app .ch-btn.lime{background:var(--lime)}.color-harmonies-app .ch-btn:disabled{background:#e5e5e0;color:#999;cursor:wait;transform:none;box-shadow:var(--shadow)}.ch-content-grid{display:grid;grid-template-columns:1fr;gap:32px 48px;align-items:start}@media(min-width:768px){.ch-content-grid{grid-template-columns:1fr 280px}}.ch-left-column{display:flex;flex-direction:column}.ch-right-column{position:sticky;top:40px;height:fit-content}.ch-section-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.ch-section-number{font-family:var(--font-mono);font-size:11px;font-weight:700;background:var(--black);color:#fff;padding:6px 10px;letter-spacing:1px}.ch-section-title{font-family:var(--font-heading);font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:1px;white-space:nowrap}.ch-section-line{flex:1;height:3px;background:var(--black)}.ch-nav-label{font-family:var(--font-mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:2px;opacity:.5;margin-bottom:0}.ch-nav{display:flex;flex-direction:column;gap:8px}.ch-nav button{appearance:none;background:var(--surface);border:3px solid var(--black);padding:12px 14px;cursor:pointer;font-family:var(--font-heading);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--black);text-align:left;transition:all .08s ease;box-shadow:var(--shadow);position:relative;width:100%}.ch-nav button .ch-nav-desc{display:block;font-family:var(--font-mono);font-size:11px;font-weight:500;text-transform:none;letter-spacing:0;opacity:.55;margin-top:4px;line-height:1.4}.ch-nav button:hover{background:#f0f0ec;transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--black)}.ch-nav button.active{background:var(--yellow-hot);box-shadow:var(--shadow)}.ch-nav button.active .ch-nav-desc{opacity:.7}.ch-nav button.active:hover{background:var(--yellow-hot)}.ch-card-container{min-height:280px;display:flex;flex-direction:column;align-items:center}.ch-swatches{display:flex;align-items:flex-start;justify-content:center;flex-wrap:wrap;gap:var(--ch-gap);padding:4px}.ch-swatch-wrap{transition:transform .08s ease,box-shadow .08s ease}.ch-swatch-wrap:hover{transform:translate(-2px,-2px)}.ch-chip{width:var(--ch-chip-width);height:var(--ch-chip-height);border:3px solid var(--black);box-shadow:var(--shadow);position:relative;overflow:hidden;transition:all .08s ease}.ch-swatch-wrap:hover .ch-chip{box-shadow:6px 6px 0 var(--black)}.ch-label{font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--black);margin-top:10px;-webkit-user-select:all;user-select:all;text-align:center;letter-spacing:.5px}.ch-color-name{font-family:var(--font-heading);font-size:11px;font-weight:600;color:var(--black);text-align:center;margin-top:2px;opacity:.45;text-transform:uppercase;letter-spacing:.5px}@keyframes ch-swatch-enter{0%{opacity:0;transform:scale(.85) translateY(16px)}to{opacity:1;transform:scale(1) translateY(0)}}.ch-swatch-enter{animation:ch-swatch-enter .35s cubic-bezier(.22,1,.36,1) both}@keyframes ch-swatch-exit{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.85)}}.ch-swatch-exit{animation:ch-swatch-exit .2s ease-out both}.ch-footer{margin-top:56px;padding-top:20px;border-top:4px solid var(--black);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.ch-footer-text{font-family:var(--font-mono);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:2px;opacity:.4}@media(max-width:767px){.ch-content-grid{grid-template-columns:1fr}.ch-right-column{position:static;order:-1}.ch-nav{flex-direction:row;flex-wrap:wrap;gap:6px}.ch-nav button{font-size:11px;padding:8px 12px}.ch-nav button .ch-nav-desc{display:none}.ch-header{flex-direction:column;align-items:flex-start}.ch-layout{padding:32px 16px 40px}}