/* ============================================================
   SYSTEMS THAT BUILT AUSTRALIA — control-room design system
   ============================================================ */

:root{
  --bg:        #06090c;
  --bg-2:      #0a0f14;
  --panel:     #0c1218;
  --panel-2:   #0f1620;
  --line:      #1b2836;
  --line-2:    #243545;
  --ink:       #e8eef2;
  --ink-dim:   #93a4b3;
  --ink-faint: #5a6b7a;
  --amber:     #ffb020;
  --amber-2:   #ff8a1e;
  --cyan:      #4fd6ff;
  --cyan-dim:  #2b7f99;
  --green:     #57e39a;
  --red:       #ff5a5f;
  --mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --disp: "Bebas Neue", "Oswald", "Arial Narrow", sans-serif;
  --body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --maxw: 1240px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* subtle scanline / grid texture over the whole page */
body::before{
  content:"";
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(79,214,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,214,255,.025) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 50% 0%, #000 20%, transparent 85%);
}
body::after{
  content:"";
  position:fixed; inset:0; z-index:1; pointer-events:none;
  background:repeating-linear-gradient(0deg, rgba(0,0,0,0) 0 2px, rgba(0,0,0,.14) 2px 3px);
  mix-blend-mode:multiply; opacity:.5;
}

a{ color:var(--cyan); text-decoration:none; }
a:hover{ color:var(--amber); }
img{ max-width:100%; display:block; }

.wrap{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 28px; position:relative; z-index:2; }

/* ---- monospace utility labels ---- */
.mono{ font-family:var(--mono); }
.tag{
  font-family:var(--mono); font-size:11px; letter-spacing:.28em; text-transform:uppercase;
  color:var(--amber); display:inline-flex; align-items:center; gap:9px;
}
.tag::before{ content:""; width:26px; height:1px; background:var(--amber); display:inline-block; }
.dim{ color:var(--ink-dim); }
.faint{ color:var(--ink-faint); }

/* ---- headings ---- */
h1,h2,h3{ font-family:var(--disp); font-weight:400; letter-spacing:.01em; line-height:.98; margin:0; }
h1{ font-size:clamp(44px, 8vw, 118px); text-transform:uppercase; }
h2{ font-size:clamp(30px, 4.6vw, 62px); text-transform:uppercase; }
h3{ font-size:clamp(20px, 2.4vw, 30px); text-transform:uppercase; }

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  background:linear-gradient(180deg, rgba(6,9,12,.92), rgba(6,9,12,0));
  backdrop-filter:blur(6px);
}
.brandmark{ display:flex; align-items:center; gap:12px; }
.brandmark .sig{
  width:30px; height:30px; border:1px solid var(--line-2); position:relative; flex:0 0 auto;
  background:radial-gradient(circle at 50% 50%, rgba(255,176,32,.18), transparent 70%);
}
.brandmark .sig::before,.brandmark .sig::after{
  content:""; position:absolute; background:var(--amber);
}
.brandmark .sig::before{ left:4px; right:4px; top:50%; height:1px; box-shadow:0 0 8px var(--amber); }
.brandmark .sig::after{ top:4px; bottom:4px; left:50%; width:1px; opacity:.4; }
.brandmark b{ font-family:var(--mono); font-weight:600; font-size:12px; letter-spacing:.24em; text-transform:uppercase; color:var(--ink); }
.brandmark b span{ color:var(--amber); }
.navlinks{ display:flex; gap:26px; align-items:center; }
.navlinks a{ font-family:var(--mono); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-dim); }
.navlinks a:hover{ color:var(--amber); }
.navlinks .live{ color:var(--amber); display:flex; align-items:center; gap:7px; }
.navlinks .live::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--amber); box-shadow:0 0 10px var(--amber); animation:blink 1.6s infinite; }
@keyframes blink{ 0%,100%{opacity:1} 50%{opacity:.25} }
@media(max-width:720px){ .navlinks a:not(.live){ display:none; } }

/* ============================================================
   corner-bracket panel
   ============================================================ */
.panel{ position:relative; background:var(--panel); border:1px solid var(--line); }
.brackets{ position:relative; }
.brackets::before,.brackets::after{
  content:""; position:absolute; width:14px; height:14px; pointer-events:none;
  border:1px solid var(--amber);
}
.brackets::before{ top:-1px; left:-1px; border-right:0; border-bottom:0; }
.brackets::after{ bottom:-1px; right:-1px; border-left:0; border-top:0; }

/* ============================================================
   buttons
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:12px; letter-spacing:.16em; text-transform:uppercase;
  padding:14px 22px; border:1px solid var(--line-2); color:var(--ink);
  background:linear-gradient(180deg, rgba(255,176,32,.05), transparent);
  cursor:pointer; transition:.18s; position:relative;
}
.btn:hover{ border-color:var(--amber); color:var(--amber); background:rgba(255,176,32,.08); }
.btn.primary{ border-color:var(--amber); color:#0a0f14; background:var(--amber); font-weight:600; }
.btn.primary:hover{ background:var(--amber-2); color:#0a0f14; }
.btn .arrow{ transition:.18s; }
.btn:hover .arrow{ transform:translateX(3px); }

/* ============================================================
   section scaffolding
   ============================================================ */
.section{ padding:96px 0; position:relative; z-index:2; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:44px; flex-wrap:wrap; }
.section-head .lead{ max-width:520px; color:var(--ink-dim); }
.rule{ height:1px; background:linear-gradient(90deg, var(--line-2), transparent); margin:0; border:0; }

/* coordinate ticks used as decoration */
.coords{ font-family:var(--mono); font-size:10px; letter-spacing:.22em; color:var(--ink-faint); text-transform:uppercase; }

/* ============================================================
   footer
   ============================================================ */
.footer{ border-top:1px solid var(--line); padding:56px 0 70px; position:relative; z-index:2; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr; gap:40px; }
.footer h4{ font-family:var(--mono); font-size:11px; letter-spacing:.24em; text-transform:uppercase; color:var(--ink-faint); margin:0 0 16px; }
.footer a{ display:block; color:var(--ink-dim); font-size:14px; padding:5px 0; }
.footer a:hover{ color:var(--amber); }
.footer .col p{ color:var(--ink-dim); font-size:14px; max-width:360px; }
@media(max-width:720px){ .footer-grid{ grid-template-columns:1fr; gap:28px; } }

/* ============================================================
   HUD readout chips (used on tool pages)
   ============================================================ */
.readout{ display:grid; gap:1px; background:var(--line); border:1px solid var(--line); }
.readout .cell{ background:var(--panel); padding:16px 18px; }
.readout .k{ font-family:var(--mono); font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:var(--ink-faint); }
.readout .v{ font-family:var(--disp); font-size:34px; color:var(--amber); line-height:1; margin-top:8px; }
.readout .v small{ font-family:var(--mono); font-size:12px; color:var(--ink-dim); letter-spacing:.1em; }

/* control panel (sliders / buttons on tool pages) */
.control{ margin:18px 0; }
.control label{ display:flex; justify-content:space-between; font-family:var(--mono); font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-dim); margin-bottom:9px; }
.control label b{ color:var(--amber); }
input[type=range]{ -webkit-appearance:none; width:100%; height:3px; background:var(--line-2); outline:none; }
input[type=range]::-webkit-slider-thumb{ -webkit-appearance:none; width:16px; height:16px; background:var(--amber); border:2px solid var(--bg); cursor:pointer; box-shadow:0 0 10px rgba(255,176,32,.6); }
input[type=range]::-moz-range-thumb{ width:16px; height:16px; background:var(--amber); border:2px solid var(--bg); cursor:pointer; }

.notice{ font-family:var(--mono); font-size:12px; color:var(--ink-faint); letter-spacing:.06em; }