:root{
  --navy:#0b1f3a; --navy2:#10294d; --teal:#14b8a6; --teal-d:#0d9488;
  --ink:#0f172a; --muted:#64748b; --line:#e2e8f0; --bg:#f4f6fb; --card:#fff;
  --radius:18px; --shadow:0 20px 45px -18px rgba(11,31,58,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--teal-d);text-decoration:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}

/* ---------- Header ---------- */
body>header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,31,58,.92);color:#fff}
.hwrap{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.logo{font-size:20px;font-weight:800;letter-spacing:.3px}.logo span{color:var(--teal)}
body>header nav a{color:#cbd5e1;margin-left:22px;font-size:14px;font-weight:600}nav a:hover{color:#fff}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 55%,#0f766e 130%);color:#fff;position:relative;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:float 9s ease-in-out infinite alternate}
.hero::before{width:340px;height:340px;background:#14b8a6;top:-120px;right:8%}
.hero::after{width:260px;height:260px;background:#f59e0b;bottom:-130px;left:6%;animation-delay:2s}
@keyframes float{from{transform:translateY(0) scale(1)}to{transform:translateY(26px) scale(1.08)}}
.hwrap2{max-width:1200px;margin:auto;padding:52px 20px 90px;position:relative;z-index:2}
.badge{display:inline-block;background:rgba(20,184,166,.18);border:1px solid rgba(20,184,166,.5);color:#5eead4;padding:5px 14px;border-radius:99px;font-size:12px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.08;margin:16px 0 12px;font-weight:900}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#2dd4bf,#fbbf24);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:#cbd5e1;max-width:640px;font-size:16px;line-height:1.6}
.searchbar{margin-top:28px;display:flex;gap:10px;max-width:680px;background:#fff;padding:8px;border-radius:16px;box-shadow:var(--shadow)}
.searchbar input{flex:1;border:0;outline:0;font-size:16px;padding:8px 12px;color:var(--ink);min-width:0}
.searchbar button{background:var(--teal);border:0;color:#fff;font-weight:800;padding:12px 22px;border-radius:11px;font-size:15px;transition:.2s}
.searchbar button:hover{background:var(--teal-d)}
.hero .hint{margin-top:12px;font-size:13px;color:#94a3b8}
.hero .hint b{color:#e2e8f0;cursor:pointer}.hero .hint b:hover{color:#5eead4}

/* ---------- Converter card ---------- */
body>main{max-width:1200px;margin:-56px auto 60px;padding:0 20px;position:relative;z-index:5}
.grid{display:grid;grid-template-columns:420px 1fr;gap:22px}
@media(max-width:920px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden}
.stage{height:300px;position:relative;transition:background .35s;display:flex;align-items:flex-end;padding:20px;color:#fff}
.stage .chip{position:absolute;top:16px;left:16px;background:rgba(0,0,0,.32);backdrop-filter:blur(6px);padding:6px 12px;border-radius:99px;font-size:12px;font-weight:700;letter-spacing:.6px}
.stage .fav{position:absolute;top:14px;right:14px;width:42px;height:42px;border-radius:50%;border:0;background:rgba(0,0,0,.32);color:#fff;font-size:19px;backdrop-filter:blur(6px)}
.stage h2{font-size:30px;font-weight:900;text-shadow:0 2px 12px rgba(0,0,0,.35);line-height:1.1}
.stage p{opacity:.92;font-weight:600;text-shadow:0 1px 8px rgba(0,0,0,.35)}
.stage-meta{display:flex;gap:8px;padding:14px 16px;flex-wrap:wrap}
.pill{background:#f1f5f9;border:1px solid var(--line);border-radius:99px;padding:6px 12px;font-size:12.5px;font-weight:700;color:#334155}
.pill b{color:var(--navy)}
.inputs{padding:4px 20px 20px}
.inputs label{display:block;font-size:12px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--muted);margin:16px 0 7px}
.hexrow{display:flex;gap:8px}
.hexrow input[type=text]{flex:1;border:2px solid var(--line);border-radius:11px;padding:11px 13px;font-size:16px;font-weight:700;text-transform:uppercase;outline:0;min-width:0}
.hexrow input[type=text]:focus{border-color:var(--teal)}
.hexrow input[type=color]{width:52px;height:47px;border:2px solid var(--line);border-radius:11px;background:#fff;padding:3px;cursor:pointer}
.slider-row{display:grid;grid-template-columns:26px 1fr 58px;align-items:center;gap:10px;margin-top:9px;font-weight:800;font-size:13px}
.slider-row input[type=number]{border:1.5px solid var(--line);border-radius:8px;padding:6px 7px;width:58px;font-weight:700}
input[type=range]{-webkit-appearance:none;width:100%;height:8px;border-radius:99px;background:#e2e8f0;outline:0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid var(--navy);box-shadow:0 2px 8px rgba(0,0,0,.25);cursor:pointer}
.rngR{background:linear-gradient(90deg,#fff,#ef4444)!important}.rngG{background:linear-gradient(90deg,#fff,#22c55e)!important}.rngB{background:linear-gradient(90deg,#fff,#3b82f6)!important}

/* outputs */
.out-head{padding:18px 20px 4px;display:flex;justify-content:space-between;align-items:center}
.out-head h3{font-size:17px;font-weight:900;color:var(--navy)}
.out-head span{font-size:12px;color:var(--muted);font-weight:600}
.formats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;padding:14px 20px 6px}
.fmt{border:1.5px solid var(--line);border-radius:14px;padding:13px 14px;transition:.18s;position:relative;background:#fbfcfe}
.fmt:hover{border-color:var(--teal);transform:translateY(-2px);box-shadow:0 10px 22px -12px rgba(13,148,136,.45)}
.fmt small{display:block;font-size:11px;font-weight:800;letter-spacing:1px;color:var(--muted);text-transform:uppercase}
.fmt strong{display:block;font-size:15.5px;margin-top:4px;color:var(--ink);word-break:break-all}
.fmt button{position:absolute;top:9px;right:9px;border:0;background:#ecfdf5;color:var(--teal-d);font-size:11px;font-weight:800;padding:4px 9px;border-radius:99px}
.warn{margin:12px 20px 0;background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:12px;padding:11px 14px;font-size:13px;line-height:1.55}
.match{margin:14px 20px 0;border:1.5px dashed #99f6e4;background:#f0fdfa;border-radius:14px;padding:14px;display:flex;gap:14px;align-items:center}
.match .sw{width:56px;height:56px;border-radius:12px;flex:none;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
.match h4{font-size:14.5px;color:var(--navy)}.match p{font-size:12.5px;color:#475569}
.harmony{padding:16px 20px 20px}
.harmony h4{font-size:13px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.strip{display:flex;border-radius:12px;overflow:hidden;height:52px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
.strip div{flex:1;cursor:pointer;transition:.15s}.strip div:hover{flex:1.5}

/* ---------- Library ---------- */
.lib{margin-top:24px}
.lib-head{padding:20px 20px 6px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.lib-head h3{font-size:19px;font-weight:900;color:var(--navy)}
.lib-tools{display:flex;gap:8px;flex-wrap:wrap}
.lib-tools input{border:1.5px solid var(--line);border-radius:99px;padding:9px 15px;font-size:14px;outline:0;width:210px}
.lib-tools input:focus{border-color:var(--teal)}
.btn{border:0;border-radius:99px;padding:9px 16px;font-weight:800;font-size:13px;background:var(--navy);color:#fff;transition:.2s}
.btn:hover{background:var(--navy2)}.btn.teal{background:var(--teal)}.btn.teal:hover{background:var(--teal-d)}
.btn.ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.filters{padding:8px 20px 4px;display:flex;gap:7px;flex-wrap:wrap}
.filters button{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:6px 13px;font-size:12.5px;font-weight:700;color:#475569}
.filters button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:13px;padding:16px 20px 22px}
.sw-card{border:1.5px solid var(--line);border-radius:15px;overflow:hidden;cursor:pointer;transition:.18s;background:#fff}
.sw-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px -14px rgba(11,31,58,.35);border-color:var(--teal)}
.sw-card .block{height:74px}
.sw-card .meta{padding:10px 12px}
.sw-card .meta b{display:block;font-size:13.5px;color:var(--navy)}
.sw-card .meta span{font-size:12px;color:var(--muted);font-weight:600}
.empty{padding:26px 20px;color:var(--muted);font-size:14px;display:none}
.addform{display:none;padding:4px 20px 20px;gap:8px;flex-wrap:wrap}
.addform input{border:1.5px solid var(--line);border-radius:10px;padding:9px 11px;font-size:14px}
body>footer{max-width:1200px;margin:auto;padding:0 20px 50px;color:var(--muted);font-size:13px;line-height:1.7}
#toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,80px);background:var(--navy);color:#fff;padding:12px 22px;border-radius:99px;font-weight:700;font-size:14px;box-shadow:var(--shadow);transition:.3s;z-index:99}
#toast.show{transform:translate(-50%,0)}

body{background-color:#0e1015;background-image:radial-gradient(#232630 .75px,transparent .75px);background-size:22px 22px}footer{color:#bcc8d6}footer strong{color:#fff}.fmt{cursor:pointer;text-align:left;font-family:inherit}.fmt-copy{position:absolute;top:9px;right:9px;border:0;background:#ecfdf5;color:#08776c;font-size:11px;font-weight:800;padding:4px 9px;border-radius:99px}.fmt small{max-width:calc(100% - 38px)}.sw-card{display:block;text-align:left;font-family:inherit;padding:0;color:var(--ink)}.sw-card .block,.sw-card .meta,.sw-card .meta span{display:block}.sw-card .meta span{margin-top:4px;overflow-wrap:anywhere}.strip button{flex:1;border:0;min-width:0;cursor:pointer}.strip button:hover{flex:1.3}.match .sw{border:1px solid #cbd5e1}.stage .chip{color:#fff}.stage h2{overflow-wrap:anywhere}.system-control{padding:14px 20px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.system-control label{font-weight:700;font-size:14px}.system-control select{padding:10px 14px;border:1px solid var(--line);border-radius:10px;max-width:100%;background:#fff;color:var(--ink)}#moreWrap{display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap}button:disabled{opacity:.4;cursor:default}button:focus-visible,[role=button]:focus-visible{outline:3px solid #14b8a6;outline-offset:3px}.input-status{font-size:12px;color:#b42318;line-height:1.5;min-height:18px}[aria-invalid=true]{border-color:#b42318!important}.lib-tools input{max-width:100%}.hero .hint b{white-space:nowrap}.no-script{padding:20px;color:#fff}.tool-guide{max-width:1160px}.btn.teal,.searchbar button{background:#0d9488;color:#fff}.btn.teal:hover,.searchbar button:hover{background:#08776c}@media(max-width:600px){nav a{margin-left:12px;font-size:12px}.logo{font-size:16px}.hwrap{padding:12px}.searchbar button{padding:10px 15px}.lib-head,.swatches{padding-left:14px;padding-right:14px}.swatches{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.grid{grid-template-columns:minmax(0,1fr)}.card{min-width:0}.stage{height:240px}.stage h2{font-size:26px}.out-head{gap:10px;align-items:flex-start}.formats{grid-template-columns:repeat(2,minmax(0,1fr));padding:14px;gap:10px}.fmt{padding:12px 10px}.fmt strong{font-size:13px}.match{margin-left:14px;margin-right:14px}.lib-tools{width:100%}.lib-tools input{width:100%}main{padding:0 12px}.fmt small{font-size:10px}.fmt-copy{font-size:10px;padding:3px 6px}.hwrap2{padding:36px 16px 85px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

body>header.nav{height:78px;display:flex;align-items:center;justify-content:space-between;padding:0 7.5%;position:sticky;top:0;z-index:50;background:rgba(246,249,248,.94);color:#0d1117;backdrop-filter:blur(14px) saturate(150%);border-bottom:1px solid #fff9;box-shadow:0 4px 24px #1018280b}
body>header.nav .brand{font-weight:900;letter-spacing:-.7px;font-size:20px;color:#0d1117;white-space:nowrap}body>header.nav .brace{color:#7b8791}body>header.nav .brand-webs{color:#02a96c}body>header.nav .brand img{max-height:38px;max-width:160px}body>header.nav nav{display:flex;gap:26px;align-items:center;font-size:14px}body>header.nav nav a{margin:0;color:#0d1117;font-size:14px;font-weight:400}body>header.nav nav a:hover{opacity:.65}body>header.nav .pill{background:#0d1117;color:#fff;padding:10px 15px;border-radius:999px}body>header.nav .menu{display:none;border:0;background:none;font-size:24px;color:#0d1117}body>header.nav .inline{display:inline}body>header.nav .linkbtn{border:0;background:none;padding:0;color:#0d1117;cursor:pointer}
.match{display:block}.match>h3{font-size:16px;color:#0b1f3a}.match>p{margin:6px 0 14px}.match-result{display:flex;gap:12px;align-items:center;border-top:1px solid #cce8e0;padding:10px 0}.match-result>div{min-width:0;flex:1}.match-result strong{font-size:13px;overflow-wrap:anywhere}.match-copy{border:1px solid #cce8e0;border-radius:8px;background:#fff;color:#08776c;padding:8px;font-size:12px;font-weight:700}.tool-guide h4{margin:18px 0 8px;color:#fff}.tool-guide section{scroll-margin-top:90px}.tool-guide p{line-height:1.8}
@media(max-width:900px){body>header.nav{padding:0 20px}body>header.nav .menu{display:block}body>header.nav nav{display:none;position:absolute;top:78px;left:0;right:0;background:#f6f9f8;padding:24px;box-shadow:0 12px 20px #0002;gap:18px;align-items:flex-start}body.menu-open>header.nav nav{display:flex;flex-direction:column}.match-result .sw{width:44px;height:44px}.match-copy{font-size:11px}}