:root{--violet:#4b0082;--electrique:#00f0ff;--fond:#0a0015;--flash:#d946ef;--clair:#fafafa}body,html{margin:0;padding:0;background:var(--fond);font-family:Segoe UI,sans-serif;color:white;overflow-x:hidden;scroll-behavior:smooth}.container{position:relative;max-width:1000px;margin:auto;padding:2rem;z-index:2}body:before{content:"";position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 50% 50%,rgba(0,0,255,.05),transparent 70%) repeat;animation:smoke 30s linear infinite;z-index:0;pointer-events:none}@keyframes smoke{0%{transform:rotate(0deg) scale(1);opacity:.3}50%{transform:rotate(180deg) scale(1.2);opacity:.4}to{transform:rotate(1turn) scale(1);opacity:.3}}header{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(to right,var(--violet),var(--electrique));padding:1rem 2rem;border-radius:15px;margin-bottom:2rem;box-shadow:0 0 15px #000}.logo{font-size:1.8rem;font-weight:700}.logo span{color:var(--flash)}nav a{margin-left:20px;color:white;text-decoration:none;font-weight:500;transition:color .3s}nav a:hover{color:var(--flash)}.hero{text-align:center;margin-bottom:3rem}h1,h2{color:var(--flash)}section{margin:4rem 0}table{width:100%;border-collapse:collapse;margin-top:1rem;background-color:rgba(255,255,255,.05);border-radius:12px;overflow:hidden}td,th{text-align:left;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.1)}th{background-color:var(--violet)}td,th{color:var(--clair)}form{display:flex;flex-direction:column}input,textarea{margin:10px 0;padding:10px;background-color:#eee;font-size:14px}button,input,textarea{border:none;border-radius:8px}button{background:var(--electrique);color:#000;padding:12px;cursor:pointer;font-weight:700;transition:background-color .3s ease}button:hover{background:var(--flash);color:white}footer{margin-top:4rem;font-size:.9rem;color:#bbb}.centered,footer{text-align:center}.centered{font-style:italic}