/* =========================================================================
   AEROLLOY TECHNOLOGIES - Design system (V6 light direction)
   Newsreader · Inter · Spectral · PTC Red #CD222B
   Register: Howmet/ATI peer · Apple/Stripe/Diageo digital craft · restraint
   ========================================================================= */

/* ---- Tokens ----------------------------------------------------------- */
:root{
  /* Palette - V6 locked */
  --ptc-red:    #CD222B;
  --red-dark:   #A3151C;
  --ink:        #16161A;
  --ink-soft:   #43434B;
  --muted:      #6E6E77;
  --bg:         #FFFFFF;
  --bg-alt:     #F4F6F8;
  --cream:      #E8ECEF;
  --hairline:   #E1E5E9;
  --charcoal:   #16161A;        /* the one dark break */
  --charcoal-2: #1E1E24;

  /* Tunable via Tweaks panel */
  --accent:        var(--ptc-red);
  --accent-dark:   var(--red-dark);
  --display-scale: 1;           /* multiplier on headline sizes */
  --grid-dot:      #CDD3D9;     /* dot-grid placeholder dots */

  /* Type families */
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "Spectral", Georgia, "Times New Roman", serif;

  /* Layout */
  --container: 1240px;
  --container-narrow: 880px;
  --gutter: clamp(20px, 5vw, 64px);
  --nav-h: 70px;

  /* Motion - Rolls-Royce / Linear restraint */
  --ease: cubic-bezier(0.2, 0, 0, 1);
  --dur: 360ms;
}

/* ---- Reset ------------------------------------------------------------ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.6;
  font-weight:400;
  letter-spacing:-0.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-variant-numeric:tabular-nums lining-nums;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4,h5,p{ margin:0; }
::selection{ background:var(--accent); color:#fff; }

/* ---- Layout primitives ------------------------------------------------ */
.container{ max-width:var(--container); margin-inline:auto; padding-inline:var(--gutter); }
.container-narrow{ max-width:var(--container-narrow); margin-inline:auto; padding-inline:var(--gutter); }
.section{ padding-block:clamp(72px, 11vw, 148px); }
.section-tight{ padding-block:clamp(56px, 8vw, 104px); }
.hairline{ height:1px; background:var(--hairline); border:0; margin:0; }

/* ---- Typography -------------------------------------------------------- */
.kicker{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.kicker::before{
  content:"";
  width:22px; height:1px;
  background:var(--accent);
  display:inline-block;
}
.kicker--plain::before{ display:none; }

.display{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.02;
  letter-spacing:-0.025em;
  font-size:calc(clamp(40px, 7vw, 88px) * var(--display-scale));
}
.h1{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.04;
  letter-spacing:-0.022em;
  font-size:calc(clamp(34px, 5.4vw, 64px) * var(--display-scale));
}
.h2{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.06;
  letter-spacing:-0.02em;
  font-size:calc(clamp(28px, 3.8vw, 46px) * var(--display-scale));
}
.h3{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.12;
  letter-spacing:-0.015em;
  font-size:clamp(22px, 2.4vw, 30px);
}
.h4{
  font-family:var(--font-body);
  font-weight:600;
  line-height:1.25;
  letter-spacing:-0.01em;
  font-size:19px;
}
.dek{
  font-family:var(--font-body);
  font-size:clamp(18px, 1.5vw, 21px);
  line-height:1.55;
  color:var(--ink-soft);
  font-weight:400;
  letter-spacing:-0.01em;
  text-wrap:pretty;
}
.lede{ font-size:18px; line-height:1.62; color:var(--ink-soft); text-wrap:pretty; }
.meta{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.04em;
  color:var(--muted);
  line-height:1.5;
}
.mono-label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.serif-accent{ font-style:italic; font-family:var(--font-display); }

/* ---- Buttons (two-tier only) ------------------------------------------ */
.btn{
  --bh: ;
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:500;
  letter-spacing:-0.005em;
  padding:13px 22px;
  border-radius:2px;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease),
             border-color var(--dur) var(--ease), opacity var(--dur) var(--ease);
  white-space:nowrap;
  line-height:1;
}
.btn .ar{ transition:transform var(--dur) var(--ease); }
.btn:hover .ar{ transform:translateX(3px); }
.btn-primary{ background:var(--accent); color:#fff; border-color:var(--accent); }
.btn-primary:hover{ background:var(--accent-dark); border-color:var(--accent-dark); }
.btn-secondary{ background:transparent; color:var(--accent); border-color:var(--accent); }
.btn-secondary:hover{ background:var(--accent); color:#fff; }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--hairline); padding-inline:18px; }
.btn-ghost:hover{ border-color:var(--ink); }
/* on dark */
.on-dark .btn-secondary{ color:#fff; border-color:rgba(255,255,255,0.35); }
.on-dark .btn-secondary:hover{ background:#fff; color:var(--ink); border-color:#fff; }

/* text link with arrow */
.link-arrow{
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--ink);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.link-arrow .ar{ color:var(--accent); transition:transform var(--dur) var(--ease); }
.link-arrow:hover{ color:var(--accent); }
.link-arrow:hover .ar{ transform:translateX(3px); }

/* ---- Dot-grid placeholder (the agreed photo stand-in) ----------------- */
.ph{
  position:relative;
  background-color:var(--bg-alt);
  background-image:radial-gradient(var(--grid-dot) 1.1px, transparent 1.2px);
  background-size:14px 14px;
  background-position:7px 7px;
  border:1px solid var(--hairline);
  border-top:3px solid var(--accent);
  display:flex;
  align-items:flex-end;
  overflow:hidden;
}
.ph__cap{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:0.06em;
  color:var(--muted);
  padding:14px 16px;
  display:flex; align-items:center; gap:8px;
}
.ph__cap::before{
  content:""; width:6px; height:6px; background:var(--accent);
  border-radius:50%; flex:none;
}
.ph--dark{
  background-color:#101015;
  background-image:radial-gradient(rgba(255,255,255,0.10) 1.1px, transparent 1.2px);
  border-color:rgba(255,255,255,0.08);
}
.ph--dark .ph__cap{ color:rgba(255,255,255,0.55); }

/* ---- Status pill ------------------------------------------------------ */
.pill{
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.07em;
  text-transform:uppercase;
  padding:5px 10px;
  border-radius:2px;
  border:1px solid var(--hairline);
  color:var(--muted);
  background:var(--bg);
  line-height:1;
  white-space:nowrap;
}
.pill--live{ color:var(--accent); border-color:color-mix(in srgb, var(--accent) 35%, var(--hairline)); }
.pill--live .dot{
  width:6px; height:6px; border-radius:50%; background:var(--accent);
  box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  70%{ box-shadow:0 0 0 7px transparent; }
  100%{ box-shadow:0 0 0 0 transparent; }
}
@media (prefers-reduced-motion: reduce){ .pill--live .dot{ animation:none; } }
.pill .dot{ width:6px; height:6px; border-radius:50%; background:currentColor; flex:none; }
.pill--commission{ color:var(--parity, #B8860B); }

/* ---- Section header block (eyebrow · rule · heading) ------------------ */
.sec-head{ display:flex; flex-direction:column; gap:18px; max-width:760px; }
.sec-head .dek{ margin-top:4px; }

/* ---- Cards ------------------------------------------------------------ */
.card{
  background:var(--bg);
  border:1px solid var(--hairline);
  border-radius:2px;
  transition:border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

/* ---- Reveal-on-scroll (fade-rise) -------------------------------------
   Visible BY DEFAULT. The hidden start-state only applies once JS adds
   `reveal-on` to <html> - so if JS never runs (or the environment freezes
   transitions) content is always shown, never stuck invisible. */
html.reveal-on .reveal{ opacity:0; transform:translateY(18px); transition:opacity 720ms var(--ease), transform 720ms var(--ease); }
html.reveal-on .reveal.in{ opacity:1; transform:none; }
html.reveal-on .reveal[data-d="1"]{ transition-delay:80ms; }
html.reveal-on .reveal[data-d="2"]{ transition-delay:160ms; }
html.reveal-on .reveal[data-d="3"]{ transition-delay:240ms; }
html.reveal-on .reveal[data-d="4"]{ transition-delay:320ms; }

/* ---- Scroll progress -------------------------------------------------- */
.scroll-progress{
  position:fixed; top:0; left:0; height:2px; width:0;
  background:var(--accent); z-index:1000;
  transition:width 80ms linear;
}

/* ---- Utility ---------------------------------------------------------- */
.text-red{ color:var(--accent); }
.tnum{ font-variant-numeric:tabular-nums lining-nums; }
.nowrap{ white-space:nowrap; }
.grid{ display:grid; gap:24px; }
.flow > * + *{ margin-top:var(--flow, 20px); }
.eyebrow-rule{ border-top:1px solid var(--hairline); }