:root {
  --bg: #05060a;
  --neon: #00f0ff;
  --neon2: #ff2bd6;
  --green: #39ff88;
  --text: #c9d6e4;
  --muted: #5b6b7f;
  --panel: rgba(10, 16, 24, 0.72);
  --border: rgba(0, 240, 255, 0.25);
  --mono: "Fira Code", "Consolas", "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Fond canvas + effets */
#bg { position: fixed; inset: 0; z-index: 0; }

.grid-overlay {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,240,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 80%);
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 80%);
}

.scanlines {
  position: fixed; inset: 0; z-index: 9; pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,0) 0 2px, rgba(0,0,0,.22) 2px 4px);
  animation: scan 8s linear infinite;
}
@keyframes scan { from { background-position-y: 0; } to { background-position-y: 400px; } }

main, .topbar, .nav, footer { position: relative; z-index: 2; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 24px; font-size: 12px; letter-spacing: 2px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: rgba(5,6,10,.8);
}
.topbar .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 10px var(--green);
  animation: blink 1.4s infinite;
}
@keyframes blink { 50% { opacity: .25; } }
.sep { color: var(--neon); }

/* Nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; flex-wrap: wrap; gap: 12px;
}
.logo { font-size: 22px; font-weight: 700; letter-spacing: 3px; }
.logo span { color: var(--neon2); }
.nav ul { list-style: none; display: flex; gap: 22px; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 13px;
  letter-spacing: 2px; padding: 6px 2px; position: relative; transition: .25s;
}
.nav a:hover, .nav a.active { color: var(--neon); }
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px;
  width: 0; background: var(--neon); transition: .25s;
}
.nav a:hover::after, .nav a.active::after { width: 100%; }

/* Hero */
.hero { padding: 80px 24px 100px; max-width: 1100px; margin: 0 auto; }
.tag { color: var(--green); font-size: 13px; margin-bottom: 16px; }
.hero h1 {
  font-size: clamp(34px, 7vw, 82px); line-height: 1.05;
  letter-spacing: 2px; color: #fff; text-shadow: 0 0 22px rgba(0,240,255,.45);
}
.hero h1 .line { display: block; }
.glitch { position: relative; color: var(--neon); }
.glitch::before, .glitch::after {
  content: attr(data-text); position: absolute; inset: 0; overflow: hidden;
}
.glitch::before { color: var(--neon2); animation: g1 2.6s infinite linear alternate-reverse; }
.glitch::after { color: #00ff9c; animation: g2 3.4s infinite linear alternate-reverse; }
@keyframes g1 { 0%{transform:translate(0)} 20%{transform:translate(-3px,2px)} 40%{transform:translate(3px,-2px)} 60%{transform:translate(-2px,1px)} 80%{transform:translate(2px,2px)} 100%{transform:translate(0)} }
@keyframes g2 { 0%{transform:translate(0)} 25%{transform:translate(2px,-1px)} 50%{transform:translate(-3px,1px)} 75%{transform:translate(1px,2px)} 100%{transform:translate(0)} }

.lead { max-width: 560px; margin: 22px 0 30px; line-height: 1.7; color: var(--muted); }

.cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: var(--mono); font-size: 13px; letter-spacing: 2px;
  padding: 12px 26px; cursor: pointer; text-decoration: none;
  color: var(--neon); background: transparent; border: 1px solid var(--border);
  transition: .25s; text-transform: uppercase;
}
.btn:hover { background: rgba(0,240,255,.1); box-shadow: 0 0 18px rgba(0,240,255,.35); }
.btn.primary { color: #05060a; background: var(--neon); border-color: var(--neon); }
.btn.primary:hover { background: #fff; box-shadow: 0 0 24px var(--neon); }

/* Stats */
.stats { display: flex; gap: 40px; flex-wrap: wrap; margin-top: 60px; }
.stat b { display: block; font-size: 34px; color: var(--green); }
.stat span { font-size: 11px; letter-spacing: 3px; color: var(--muted); }

/* Sections */
.section { max-width: 1100px; margin: 0 auto; padding: 60px 24px; }
.section-title {
  font-size: 20px; letter-spacing: 4px; color: var(--neon);
  border-left: 3px solid var(--neon2); padding-left: 12px; margin-bottom: 30px;
}
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--border);
  padding: 24px; transition: .3s; position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--neon), var(--neon2)); transition: .35s;
}
.card:hover { transform: translateY(-6px); border-color: var(--neon); box-shadow: 0 0 30px rgba(0,240,255,.18); }
.card:hover::before { width: 100%; }
.card h3 { font-size: 15px; letter-spacing: 2px; color: #fff; margin-bottom: 12px; }
.card p { font-size: 13px; line-height: 1.7; color: var(--muted); margin-bottom: 16px; }
.card code { font-size: 12px; color: var(--green); }

/* Terminal */
.terminal { border: 1px solid var(--border); background: rgba(3,6,10,.88); }
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  background: rgba(0,240,255,.05);
}
.tl { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.tl.red { background: #ff5f57; } .tl.yellow { background: #febc2e; } .tl.green { background: #28c840; }
.term-title { margin-left: 10px; font-size: 12px; color: var(--muted); }
#termOut {
  min-height: 230px; max-height: 300px; overflow-y: auto;
  padding: 16px; font-size: 13px; line-height: 1.7; color: var(--green);
  white-space: pre-wrap; word-break: break-word;
}
.term-input { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.term-input .prompt { color: var(--neon2); }
#cmd {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: var(--mono); font-size: 13px;
}

/* Form */
.form { display: grid; gap: 14px; max-width: 520px; }
.form input, .form textarea {
  background: rgba(10,16,24,.7); border: 1px solid var(--border);
  padding: 12px 14px; color: var(--text); font-family: var(--mono);
  font-size: 13px; outline: none; resize: vertical;
}
.form input:focus, .form textarea:focus { border-color: var(--neon); box-shadow: 0 0 16px rgba(0,240,255,.25); }
.form .btn { justify-self: start; }
.msg { font-size: 12px; color: var(--green); min-height: 18px; }

footer {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
  padding: 26px; font-size: 12px; letter-spacing: 2px; color: var(--muted);
  border-top: 1px solid var(--border); margin-top: 40px;
}

@media (max-width: 640px) {
  .nav { flex-direction: column; align-items: flex-start; }
  .nav ul { flex-wrap: wrap; gap: 14px; }
  .stats { gap: 24px; }
}