/* ============================================================
   enicham — shared base
   Design tokens mirrored from the enicham appliance (src/index.css).
   Per-page styles live inline in each page's <head>.
   ============================================================ */
:root{
  --canvas:    #08090a;
  --surface:   #111317;
  --elevated:  #181b20;
  --grey-mid:  #2a2e35;
  --primary:   #f2f4f7;
  --muted:     #9aa1ab;
  --accent:    #2dd4bf;   /* turquoise — the single accent */
  --accent-bright:#5eead4;
  --accent-deep:#0d9488;
  --accent-cyan:#22d3ee;
  --danger:    #f87171;

  --accent-rgb: 45 212 191;
  --cyan-rgb: 34 211 238;

  --border-subtle: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.12);

  --sans:  'Inter', system-ui, -apple-system, sans-serif;
  --display:'Space Grotesk', 'Inter', sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  --radius: 14px;
  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 60px);
}

/* ============================================================ RESET */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--canvas);
  color:var(--primary);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
svg{ display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
::selection{ background:rgb(var(--accent-rgb) / 0.3); color:#fff; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; border-radius:6px; }
* { scrollbar-width:thin; scrollbar-color:var(--grey-mid) transparent; }

/* skip link — keyboard accessibility */
.skip{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--accent); color:var(--canvas);
  font-family:var(--mono); font-size:0.82rem; font-weight:500;
  padding:0.7rem 1.1rem; border-radius:0 0 10px 0;
}
.skip:focus{ left:0; }

/* ============================================================ TEXTURE */
.grid-bg{
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size:46px 46px;
}
.aura{
  background:
    radial-gradient(60rem 42rem at 72% -8%, rgb(var(--accent-rgb) / 0.12), transparent 60%),
    radial-gradient(52rem 40rem at -5% 108%, rgb(var(--cyan-rgb) / 0.07), transparent 55%);
}
@keyframes aura-drift{
  0%{ transform:translate3d(0,0,0) scale(1); }
  50%{ transform:translate3d(2%,-2%,0) scale(1.07); }
  100%{ transform:translate3d(0,0,0) scale(1); }
}
.aura-drift{ animation:aura-drift 16s ease-in-out infinite; }

/* ============================================================ GLOW */
.glow-soft{ box-shadow:0 0 24px -6px rgb(var(--accent-rgb) / 0.45); }
.glow-ring{ box-shadow:0 0 0 1px rgb(var(--accent-rgb) / 0.4), 0 0 22px rgb(var(--accent-rgb) / 0.35); }

/* ============================================================ TYPE HELPERS */
.eyebrow{
  display:inline-flex; align-items:center; gap:0.6rem;
  font-family:var(--mono);
  font-size:0.72rem;
  font-weight:500;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 1.2rem;
}
.eyebrow::before{
  content:""; width:22px; height:1px;
  background:linear-gradient(90deg, var(--accent), transparent);
}
h1,h2,h3{ font-family:var(--display); color:var(--primary); margin:0; line-height:1.08; letter-spacing:-0.02em; }
.accent{ color:var(--accent); }
.display-grad{
  background:linear-gradient(100deg, var(--accent-bright), var(--accent) 55%, var(--accent-cyan));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.section-title{ font-size:clamp(1.8rem, 4vw, 2.8rem); font-weight:600; max-width:22ch; }
.lead{ color:var(--muted); font-size:clamp(1rem,1.6vw,1.16rem); max-width:62ch; }

/* ============================================================ LAYOUT */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
section{ position:relative; }
.section-pad{ padding-block:clamp(68px,11vw,128px); }
.section-head{ margin-bottom:clamp(2.4rem,5vw,3.6rem); }
.hairline{ height:1px; background:var(--border-subtle); border:0; margin:0; }

/* ============================================================ NAV */
.nav{
  position:fixed; inset:0 0 auto 0; z-index:60;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:0.85rem var(--gutter);
  border-bottom:1px solid transparent;
  transition:background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
}
.nav.scrolled{
  background:rgb(17 19 23 / 0.66);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--border-subtle);
}
.brand{ display:flex; align-items:center; gap:0.65rem; }
.brand-name{ font-family:var(--display); font-weight:600; font-size:1.18rem; letter-spacing:-0.01em; color:var(--primary); }
.nav-right{ display:flex; align-items:center; gap:1.7rem; }
.nav-links{ display:flex; gap:1.5rem; font-family:var(--mono); font-size:0.8rem; color:var(--muted); }
.nav-links a{ position:relative; transition:color .2s ease; }
.nav-links a:hover,.nav-links a.is-active{ color:var(--accent); }
.nav-links a::after{ content:""; position:absolute; left:0; bottom:-5px; width:0; height:1px; background:var(--accent); transition:width .2s ease; }
.nav-links a:hover::after,.nav-links a.is-active::after{ width:100%; }

/* ============================================================ BUTTONS */
.btn{
  display:inline-flex; align-items:center; gap:0.55rem;
  font-family:var(--sans); font-size:0.96rem; font-weight:500;
  padding:0.8rem 1.3rem; border-radius:var(--radius);
  border:1px solid transparent; background:var(--accent); color:var(--canvas);
  box-shadow:0 0 0 1px rgb(var(--accent-rgb)/0.25), 0 10px 30px -10px rgb(var(--accent-rgb)/0.5);
  transition:background .2s ease, box-shadow .2s ease, transform .15s ease;
}
.btn:hover{ background:var(--accent-bright); box-shadow:0 0 0 1px rgb(var(--accent-rgb)/0.4), 0 14px 38px -10px rgb(var(--accent-rgb)/0.7); transform:translateY(-1px); }
.btn svg{ width:17px; height:17px; }
.btn-ghost{
  display:inline-flex; align-items:center; gap:0.5rem;
  font-family:var(--sans); font-size:0.96rem; font-weight:500; color:var(--primary);
  padding:0.8rem 1.1rem; border-radius:var(--radius);
  border:1px solid var(--border-strong); background:transparent;
  transition:border-color .2s ease, color .2s ease, gap .2s ease;
}
.btn-ghost:hover{ border-color:rgb(var(--accent-rgb)/0.5); color:var(--accent); gap:0.75rem; }
.btn-ghost svg{ width:16px; height:16px; }

/* ============================================================ FOOTER */
.footer-line{ height:1px; background:rgb(var(--accent-rgb)/0.18); border:0; }
footer .wrap{ display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; padding-block:1.7rem; }
.foot-left{ font-family:var(--mono); font-size:0.78rem; color:var(--muted); letter-spacing:0.03em; }
.foot-left a:hover{ color:var(--accent); }

/* ============================================================ RESPONSIVE (shared) */
@media (max-width: 620px){
  .nav-links{ gap:1.1rem; }
}

/* ============================================================ REDUCED MOTION (shared) */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .aura-drift{ animation:none !important; }
  *{ transition-duration:0.01ms !important; }
}
