:root{--flex:#e3121b;--flex-dark:color-mix(in srgb,var(--flex) 75%,#000);--flex-light:color-mix(in srgb,var(--flex) 15%,#fff);--flex-soft:color-mix(in srgb,var(--flex) 8%,#fff);
--bg:#f3f4f8;--text:#1d2230;--muted:#6b7280;--line:#e6e8ee;--win:#1a8f3c}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}a{color:inherit;text-decoration:none}[hidden]{display:none!important}
.adm-top{display:flex;align-items:center;gap:12px;height:70px;padding:0 20px;background:var(--flex);color:#fff}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:19px;letter-spacing:-.5px}.logo path{stroke:var(--flex)}.logo b{font-weight:600;opacity:.9}
.ic{width:1.15em;height:1.15em;vertical-align:-.22em;flex:none}
.tag{background:#ffffff2e;border-radius:12px;padding:2px 10px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.back{margin-left:auto;font-weight:600;opacity:.9}.back:hover{opacity:1;text-decoration:underline}
.adm{display:grid;grid-template-columns:360px minmax(0,1fr);gap:16px;max-width:1400px;margin:24px auto;padding:0 16px;align-items:start}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
h1,h2{margin:0 0 6px;text-transform:uppercase;font-weight:900;font-style:italic}h1{font-size:22px}h2{font-size:16px;margin-bottom:14px}
.sub{color:var(--muted);margin:0 0 16px;line-height:1.4}
.wheel-wrap{position:relative;width:280px;height:280px;margin:0 auto 14px}
#wheel{width:280px;height:280px;border-radius:50%;cursor:crosshair;touch-action:none;display:block}#wheel:focus-visible{outline:3px solid var(--flex);outline-offset:4px}
.marker{position:absolute;width:18px;height:18px;margin:-9px 0 0 -9px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1px #0006,0 2px 6px #0005;pointer-events:none}
label{display:flex;justify-content:space-between;font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;margin:14px 0 6px}
#bright{-webkit-appearance:none;appearance:none;width:100%;height:14px;border-radius:7px;background:linear-gradient(to right,#000,var(--flex));outline:0}
#bright::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;border:2px solid var(--text);cursor:pointer}
#bright::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--text);cursor:pointer}
#bright:focus-visible{box-shadow:0 0 0 3px var(--flex-light)}
.hex-row{display:flex;gap:8px}.swatch{flex:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--line);background:var(--flex)}
#hex{flex:1;min-width:0;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:8px;font:600 15px ui-monospace,Consolas,monospace;text-transform:lowercase}#hex:focus{outline:0;border-color:var(--flex)}#hex.bad{border-color:#c62828}
.err{color:#c62828;font-size:12px;margin:6px 0 0}
.actions{display:flex;gap:8px;margin-top:18px}.actions button{flex:1;padding:11px;white-space:nowrap;border-radius:8px;font-weight:800}
.primary{background:var(--flex);color:#fff}.primary:hover{background:var(--flex-dark)}
.secondary{background:var(--bg);border:1px solid var(--line)}.secondary:hover{border-color:#e3121b;color:#e3121b}
.status{min-height:18px;margin:10px 0 0;font-size:13px;color:var(--muted);text-align:center}.status.ok{color:var(--win);font-weight:700}
/* Prévia */
.pv-dev{display:inline-flex;gap:4px;padding:4px;margin-bottom:12px;border-radius:10px;background:var(--bg)}.pv-dev button{padding:7px 14px;border-radius:8px;font-weight:700;font-size:13px;color:var(--muted)}.pv-dev .on{background:#fff;color:var(--text);box-shadow:0 1px 3px #0002}
.pv-frame{position:relative;overflow:hidden;width:100%;margin:0 auto;border:1px solid var(--line);border-radius:12px;background:var(--bg)}.pv-frame iframe{position:absolute;top:0;left:0;border:0;transform-origin:0 0;background:#fff}
.pv-tip{margin:10px 0 0;color:var(--muted);font-size:12px}
.warn{margin:12px 0 0;padding:10px 12px;border-radius:8px;background:#fff7e0;color:#8a5a00;font-size:13px}
@media(max-width:820px){.adm{grid-template-columns:1fr}}