.tool-hero { background:linear-gradient(135deg,#f59e0b 0%,#ec4899 50%,#8b5cf6 100%); padding:5rem 1.5rem 3rem; margin-top:68px; text-align:center; position:relative; overflow:hidden; }
.tool-hero::before { content:''; position:absolute; width:400px; height:400px; border-radius:50%; background:rgba(255,255,255,.05); top:-150px; right:-100px; }
.tool-hero::after { content:''; position:absolute; width:300px; height:300px; border-radius:50%; background:rgba(255,255,255,.04); bottom:-100px; left:-50px; }
.tool-hero-content { position:relative; z-index:1; }
.tool-hero-icon { width:72px; height:72px; border-radius:20px; background:rgba(255,255,255,.15); backdrop-filter:blur(10px); display:flex; align-items:center; justify-content:center; font-size:2rem; margin:0 auto 1.25rem; border:1px solid rgba(255,255,255,.2); }
.tool-hero h1 { font-size:clamp(1.75rem,4vw,2.75rem); font-weight:800; color:white; letter-spacing:-1px; margin-bottom:.75rem; }
.tool-hero p { font-size:1rem; color:rgba(255,255,255,.8); max-width:480px; margin:0 auto; }
.tool-main { max-width:1000px; margin:0 auto; padding:2.5rem 1.5rem 5rem; }

.palette-toolbar { display:flex; align-items:center; gap:.625rem; flex-wrap:wrap; margin-bottom:1.5rem; }
.btn-gen-palette { padding:.65rem 1.5rem; background:linear-gradient(135deg,#f59e0b,#ec4899); color:white; border:none; border-radius:100px; font-size:.875rem; font-weight:700; font-family:'Inter',sans-serif; cursor:pointer; transition:var(--transition); box-shadow:0 4px 12px rgba(245,158,11,.3); display:flex; align-items:center; gap:.4rem; }
.btn-gen-palette:hover { transform:translateY(-1px); box-shadow:0 6px 16px rgba(245,158,11,.4); }
.palette-count-select { padding:.6rem .9rem; border:1.5px solid var(--border); border-radius:100px; font-size:.8rem; font-family:'Inter',sans-serif; color:var(--text); outline:none; background:white; cursor:pointer; }
.btn-export-palette { padding:.6rem 1.25rem; border:1.5px solid var(--border); border-radius:100px; font-size:.8rem; font-weight:700; font-family:'Inter',sans-serif; color:var(--text-muted); background:white; cursor:pointer; transition:var(--transition); }
.btn-export-palette:hover { border-color:#ec4899; color:#ec4899; }
.harmony-select { padding:.6rem .9rem; border:1.5px solid var(--border); border-radius:100px; font-size:.8rem; font-family:'Inter',sans-serif; color:var(--text); outline:none; background:white; cursor:pointer; }

.palette-display { display:flex; height:160px; border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--border); box-shadow:var(--shadow-md); margin-bottom:1.5rem; }
.palette-swatch { flex:1; position:relative; cursor:pointer; transition:flex .3s ease; }
.palette-swatch:hover { flex:1.5; }
.palette-swatch-overlay { position:absolute; inset:0; background:rgba(0,0,0,.0); transition:var(--transition); display:flex; flex-direction:column; align-items:center; justify-content:center; opacity:0; gap:.35rem; }
.palette-swatch:hover .palette-swatch-overlay { opacity:1; background:rgba(0,0,0,.2); }
.swatch-lock-btn,.swatch-copy-btn { padding:4px 10px; border-radius:100px; border:1.5px solid rgba(255,255,255,.4); background:rgba(255,255,255,.15); backdrop-filter:blur(4px); font-size:.7rem; font-weight:700; color:white; cursor:pointer; font-family:'Inter',sans-serif; transition:var(--transition); }
.swatch-lock-btn:hover,.swatch-copy-btn:hover { background:rgba(255,255,255,.3); }

.palette-cards { display:grid; grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:1rem; margin-bottom:1.5rem; }
.color-card { background:white; border-radius:var(--radius-lg); border:1px solid var(--border); box-shadow:var(--shadow); overflow:hidden; }
.color-card-swatch { height:90px; position:relative; }
.color-card-body { padding:.875rem; }
.color-hex-value { font-size:.9rem; font-weight:800; letter-spacing:.5px; color:var(--text); display:block; margin-bottom:.375rem; }
.color-values { display:flex; flex-direction:column; gap:.15rem; }
.color-val { font-size:.68rem; color:var(--text-muted); }
.color-copy-btns { display:flex; gap:.3rem; margin-top:.625rem; }
.btn-copy-format { flex:1; padding:4px; border:1px solid var(--border); border-radius:5px; font-size:.65rem; font-weight:700; font-family:'Inter',sans-serif; cursor:pointer; background:var(--bg); color:var(--text-muted); transition:var(--transition); }
.btn-copy-format:hover { background:var(--primary); color:white; border-color:transparent; }
.lock-indicator { position:absolute; top:6px; right:6px; width:22px; height:22px; border-radius:6px; background:rgba(255,255,255,.8); backdrop-filter:blur(4px); display:none; align-items:center; justify-content:center; font-size:.75rem; }
.lock-indicator.locked { display:flex; }

.gradient-section { background:white; border-radius:var(--radius-lg); border:1px solid var(--border); box-shadow:var(--shadow); overflow:hidden; margin-bottom:1.5rem; }
.gradient-header { padding:1.1rem 1.5rem; border-bottom:1px solid var(--border-light); display:flex; align-items:center; justify-content:space-between; }
.gradient-title { font-size:.9rem; font-weight:700; color:var(--text); }
.gradient-body { padding:1.5rem; display:flex; flex-direction:column; gap:1rem; }
.gradient-preview { height:80px; border-radius:var(--radius); border:1px solid var(--border); transition:background .3s; }
.gradient-controls { display:flex; align-items:center; gap:1rem; flex-wrap:wrap; }
.grad-dir-select { padding:.5rem .875rem; border:1.5px solid var(--border); border-radius:var(--radius-sm); font-size:.8rem; font-family:'Inter',sans-serif; color:var(--text); outline:none; background:var(--bg); cursor:pointer; }
.gradient-css { background:var(--bg); border:1px solid var(--border); border-radius:var(--radius-sm); padding:.625rem 1rem; font-family:'JetBrains Mono','Courier New',monospace; font-size:.75rem; color:var(--text-muted); flex:1; }

.contrast-section { background:white; border-radius:var(--radius-lg); border:1px solid var(--border); box-shadow:var(--shadow); overflow:hidden; }
.contrast-header { padding:1.1rem 1.5rem; border-bottom:1px solid var(--border-light); }
.contrast-body { padding:1.5rem; display:flex; flex-direction:column; gap:1rem; }
.contrast-pair { display:grid; grid-template-columns:1fr 1fr auto; gap:1rem; align-items:end; }
.contrast-swatch-pick { display:flex; flex-direction:column; gap:.375rem; }
.contrast-preview { padding:1rem; border-radius:var(--radius-sm); border:1px solid var(--border); font-size:.875rem; font-weight:700; text-align:center; transition:var(--transition); }
.contrast-ratio { text-align:center; }
.contrast-ratio-value { font-size:1.75rem; font-weight:900; letter-spacing:-1px; color:var(--text); display:block; }
.contrast-rating { font-size:.72rem; font-weight:700; padding:2px 8px; border-radius:100px; display:inline-block; margin-top:.25rem; }
.contrast-rating.pass { background:rgba(16,185,129,.1); color:#059669; }
.contrast-rating.fail { background:rgba(239,68,68,.1); color:#dc2626; }