*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#191127;--surface:#180f26;--card:#23133a;
  --cyan:#883CF0;--magenta:#ff2d95;--amber:#ffb300;--lime:#76ff03;
  --text:#e8edf5;--muted:#d6d6d6;
  --radius:16px;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  background:var(--bg);color:var(--text);
  font-family:'Outfit',sans-serif;overflow-x:hidden;
  line-height:1.6;
}
::selection{background:var(--cyan);color:var(--bg)}

/* ─── CANVAS BG ─── */
#fiber-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;opacity:.45;pointer-events:none}

/* ─── NAV ─── */
nav{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.2rem 3rem;
  background:#180f26;backdrop-filter:blur(20px);
  border-bottom:1px solid #3a1c63;
  transition:background .3s;
}
.logo{font-weight:800;font-size:1.35rem;letter-spacing:2px;display:flex;align-items:center;gap:.6rem}
.logo span{color:var(--cyan)}
.logo .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 2s infinite}
nav ul{list-style:none;display:flex;gap:2rem}
nav a{color:var(--muted);text-decoration:none;font-size:.85rem;font-weight:500;letter-spacing:1.5px;text-transform:uppercase;transition:color .3s}
nav a:hover{color:var(--cyan)}

/* ─── HERO ─── */
.hero{
  position:relative;z-index:1;
  min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  padding:6rem 2rem 4rem;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:.5rem;
  background:#1f1232;border:1px solid #3a1c63;
  border-radius:99px;padding:.4rem 1.2rem;
  font-size:.75rem;font-weight:500;color:var(--cyan);
  letter-spacing:2px;text-transform:uppercase;
  margin-bottom:2rem;
  animation:fadeUp .8s ease-out both;
}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:pulse 1.5s infinite}
.hero h1{
  font-size:clamp(2.8rem,8vw,6.5rem);font-weight:800;
  line-height:1;letter-spacing:-2px;
  background:linear-gradient(135deg,#fff 0%,var(--cyan) 50%,var(--magenta) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  animation:fadeUp .8s .15s ease-out both;
  max-width:900px;
}
.hero p{
  font-size:clamp(1rem,2vw,1.25rem);color:var(--muted);max-width:600px;
  margin-top:1.5rem;font-weight:300;line-height:1.7;
  animation:fadeUp .8s .3s ease-out both;
}
.hero-cta{
  display:flex;gap:1rem;margin-top:2.5rem;flex-wrap:wrap;justify-content:center;
  animation:fadeUp .8s .45s ease-out both;
}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.85rem 2rem;border-radius:99px;font-weight:600;font-size:.9rem;
  text-decoration:none;border:none;cursor:pointer;transition:all .35s;
  font-family:inherit;letter-spacing:.5px;
}
.btn-primary{background:var(--cyan);color:var(--bg);box-shadow:0 0 30px rgba(179, 0, 255, 0.25)}
.btn-primary:hover{box-shadow:0 0 50px rgba(170, 0, 255, 0.45);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--cyan);border:1.5px solid #3a1c63}
.btn-outline:hover{border-color:var(--cyan);background:#1f1232}

.scroll-hint{
  position:absolute;bottom:2.5rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  color:var(--muted);font-size:.7rem;letter-spacing:2px;text-transform:uppercase;
  animation:bounce 2.5s infinite;
}
.scroll-hint .line{width:1px;height:32px;background:linear-gradient(to bottom,var(--cyan),transparent)}

/* ─── SECTION STYLES ─── */
section{position:relative;z-index:1;padding:6rem 2rem}
.container{max-width:1100px;margin:0 auto}
.section-label{
  font-family:'Space Mono',monospace;font-size:.7rem;
  color:var(--cyan);letter-spacing:3px;text-transform:uppercase;
  margin-bottom:.8rem;display:flex;align-items:center;gap:.8rem;
}
.section-label::before{content:'';width:28px;height:1px;background:var(--cyan)}
.section-title{font-size:clamp(1.8rem,4vw,3rem);font-weight:700;letter-spacing:-1px;margin-bottom:1rem;line-height:1.15}
.section-desc{color:var(--muted);max-width:560px;font-weight:300;font-size:1.05rem;margin-bottom:3rem}

/* ─── STATS BAR ─── */
.stats-bar{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.5rem;
  margin-top:-3rem;margin-bottom:4rem;position:relative;z-index:2;
}
.stat{
  background:var(--surface);border:1px solid #3a1c63;
  border-radius:var(--radius);padding:1.8rem 1.5rem;text-align:center;
  transition:border-color .3s;
}
.stat:hover{border-color:#5e309d}
.stat-value{font-size:2.2rem;font-weight:800;color:var(--cyan);font-family:'Space Mono',monospace}
.stat-label{font-size:.78rem;color:var(--muted);margin-top:.3rem;text-transform:uppercase;letter-spacing:1.5px}

/* ─── FIBER TYPES ─── */
.fiber-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.fiber-card{
  background:var(--card);border:1px solid #3a1c63;
  border-radius:var(--radius);padding:2rem;
  position:relative;overflow:hidden;transition:all .4s;cursor:pointer;
}
.fiber-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  border-radius:var(--radius) var(--radius) 0 0;transition:height .4s;
}
.fiber-card[data-type="om3"]::before{background:var(--cyan)}
.fiber-card[data-type="om4"]::before{background:var(--magenta)}
.fiber-card[data-type="om5"]::before{background:var(--lime)}
.fiber-card:hover{transform:translateY(-4px);border-color:#5e309d}
.fiber-card:hover::before{height:4px}
.fiber-icon{
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;font-weight:700;margin-bottom:1.2rem;
  font-family:'Space Mono',monospace;
}
.fiber-card[data-type="om3"] .fiber-icon{background:#7300ff1a;color:var(--cyan)}
.fiber-card[data-type="om4"] .fiber-icon{background:#7300ff1a;color:var(--magenta)}
.fiber-card[data-type="om5"] .fiber-icon{background:#7300ff1a;color:var(--lime)}
.fiber-card h3{font-size:1.25rem;font-weight:700;margin-bottom:.5rem}
.fiber-card p{color:var(--muted);font-size:.9rem;line-height:1.6;font-weight:300}
.fiber-specs{margin-top:1.2rem;display:flex;flex-direction:column;gap:.6rem}
.spec-row{display:flex;justify-content:space-between;align-items:center;font-size:.82rem}
.spec-row .label{color:var(--muted)}
.spec-row .value{font-family:'Space Mono',monospace;font-weight:700}

/* ─── INTERACTIVE COMPARISON ─── */
.comparison-wrap{
  background:var(--surface);border:1px solid #3a1c63;
  border-radius:var(--radius);padding:2.5rem;overflow:hidden;
}
.compare-controls{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:2rem}
.compare-btn{
  padding:.55rem 1.3rem;border-radius:99px;border:1.5px solid #3a1c63;
  background:transparent;color:var(--muted);cursor:pointer;font-family:inherit;
  font-size:.8rem;font-weight:500;transition:all .3s;letter-spacing:.5px;
}
.compare-btn.active{border-color:var(--cyan);color:var(--cyan);background:#1f1232}
.compare-btn:hover{border-color:#5e309d;color:var(--text)}
.chart-area{position:relative;height:300px;margin-top:1rem}
.bar-group{display:flex;align-items:flex-end;gap:1rem;height:100%;padding-bottom:2.5rem;justify-content:center}
.bar-col{display:flex;flex-direction:column;align-items:center;gap:.5rem;flex:1;max-width:120px}
.bar{
  width:100%;border-radius:8px 8px 4px 4px;
  position:relative;transition:height .8s cubic-bezier(.34,1.56,.64,1);
  min-height:4px;
}
.bar.om3{background:linear-gradient(to top,#7b00ff33,var(--cyan))}
.bar.om4{background:linear-gradient(to top,#dc2dff33,var(--cyan))}
.bar.om5{background:linear-gradient(to top,#bc03ff33,var(--cyan))}
.bar-label{font-size:.7rem;color:var(--muted);font-weight:500;text-transform:uppercase;letter-spacing:1px}
.bar-value{
  font-family:'Space Mono',monospace;font-size:.75rem;font-weight:700;
  position:absolute;top:-22px;left:50%;transform:translateX(-50%);white-space:nowrap;
}

/* ─── INTERACTIVE SIMULATOR ─── */
.simulator{
  background:var(--surface);border:1px solid #3a1c63;
  border-radius:var(--radius);padding:2.5rem;margin-top:2rem;
}
.sim-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:2rem}
.sim-header h3{font-size:1.3rem;font-weight:700}
.sim-controls{display:flex;gap:1.5rem;flex-wrap:wrap;align-items:center}
.sim-control{display:flex;flex-direction:column;gap:.3rem}
.sim-control label{font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px}
.sim-control input[type=range]{
  /* -webkit-appearance:none; */
  width:160px;height:4px;
  background:rgba(0,229,255,.15);border-radius:99px;outline:none;
}
.sim-control input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--cyan);cursor:pointer;box-shadow:0 0 10px rgba(0,229,255,.4);
}
.sim-readout{font-family:'Space Mono',monospace;font-size:.85rem;color:var(--cyan)}
.fiber-visual{
  position:relative;height:120px;border-radius:12px;
  background:#23133a;overflow:hidden;margin-top:1.5rem;
  border:1px solid #3a1c63;
}
.fiber-core{
  position:absolute;top:50%;left:0;right:0;transform:translateY(-50%);
  height:40px;background:#1f1232;
  border-top:1px dashed #3a1c63;
  border-bottom:1px dashed #3a1c63;
}
.light-pulse{
  position:absolute;width:8px;height:8px;border-radius:50%;
  filter:blur(2px);animation:propagate var(--speed,3s) linear infinite;
}
@keyframes propagate{
  0%{left:-10px;opacity:0}
  5%{opacity:1}
  95%{opacity:1}
  100%{left:calc(100% + 10px);opacity:0}
}
.sim-result{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;
  margin-top:1.5rem;
}
.sim-metric{
  background:#23133a;border-radius:12px;padding:1rem 1.2rem;
  border:1px solid #3a1c63;
}
.sim-metric .val{font-family:'Space Mono',monospace;font-size:1.3rem;font-weight:700;color:var(--cyan)}
.sim-metric .lbl{font-size:.7rem;color:var(--muted);margin-top:.2rem;text-transform:uppercase;letter-spacing:1px}

/* ─── HOW IT WORKS ─── */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;counter-reset:step}
.step{
  position:relative;padding:2rem 1.5rem;
  background:var(--card);border:1px solid #3a1c63;
  border-radius:var(--radius);counter-increment:step;
  transition:border-color .3s;
}
.step:hover{border-color:#5e309d}
.step::before{
  content:counter(step,decimal-leading-zero);
  font-family:'Space Mono',monospace;font-size:2.5rem;font-weight:700;
  color:#873cf03f;position:absolute;top:.8rem;right:1rem;
}
.step h4{font-size:1.05rem;font-weight:600;margin-bottom:.5rem}
.step p{color:var(--muted);font-size:.88rem;font-weight:300;line-height:1.6}

/* ─── APPLICATIONS ─── */
.apps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.2rem}
.app-card{
  padding:1.5rem;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--card),var(--surface));
  border:1px solid #3a1c63;
  transition:all .3s;position:relative;overflow:hidden;
}
.app-card:hover{border-color:#5e309d;transform:translateY(-2px)}
.app-card .emoji{font-size:1.6rem;margin-bottom:.8rem;display:block}
.app-card h4{font-size:1rem;font-weight:600;margin-bottom:.4rem}
.app-card p{color:var(--muted);font-size:.82rem;line-height:1.6;font-weight:300}

/* ─── FOOTER ─── */
footer{
  position:relative;z-index:1;padding:3rem 2rem;
  border-top:1px solid rgba(0,229,255,.06);
  text-align:center;
}
footer p{color:var(--muted);font-size:.8rem;font-weight:300}
footer a{color:var(--cyan);text-decoration:none}

/* ─── ANIMATIONS ─── */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ─── RESPONSIVE ─── */
@media(max-width:768px){
  nav{padding:1rem 1.5rem}
  nav ul{display:none}
  section{padding:4rem 1.2rem}
  .comparison-wrap,.simulator{padding:1.5rem}
  .sim-controls{flex-direction:column}
  .sim-control input[type=range]{width:100%}
  .hero h1{letter-spacing:-1px}
}