/* ---------------------------------------------------------
   Tokens
--------------------------------------------------------- */
:root{
  --ink: #131109;
  --ink-2: #1D1A10;
  --paper: #F3EEDF;
  --paper-dim: #A79E85;
  --lime: #D4F24E;
  --rust: #FF5A2B;
  --line: rgba(243,238,223,0.14);

  --serif: "Fraunces", ui-serif, Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --edge: clamp(24px, 6vw, 80px);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}

body{
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a{ color: inherit; }
em{ font-style: italic; color: var(--lime); }

.mono{ font-family: var(--mono); font-weight: 500; letter-spacing: -0.01em; }
.accent-lime{ color: var(--lime); }
.accent-rust{ color: var(--rust); }

/* ---------------------------------------------------------
   Scroll reveal
--------------------------------------------------------- */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(.2,.7,.2,1), transform 0.7s cubic-bezier(.2,.7,.2,1);
}
.reveal.in-view{ opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
}

/* ---------------------------------------------------------
   Top bar
--------------------------------------------------------- */
.topbar{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--edge);
  background: rgba(19,17,9,0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.mark{
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid var(--paper);
  padding: 6px 11px;
}

.topnav{
  display: flex;
  gap: 32px;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.topnav a{ text-decoration: none; color: var(--paper); }
.topnav a:hover, .topnav a:focus-visible{ color: var(--lime); }

.nav-toggle{ display: none; }

/* ---------------------------------------------------------
   Hero
--------------------------------------------------------- */
.hero{
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px var(--edge) 100px;
  overflow: hidden;
}

.ghost-number{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -52%);
  font-family: var(--serif);
  font-weight: 900;
  font-size: min(60vw, 780px);
  line-height: 1;
  color: var(--ink-2);
  z-index: 0;
  user-select: none;
  pointer-events: none;
}

.hero > *{ position: relative; z-index: 1; }

.eyebrow-line{
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--paper-dim);
  margin: 0 0 32px;
}

.hero h1{
  font-family: var(--serif);
  font-weight: 340;
  font-size: clamp(3rem, 9vw, 7.2rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 40px;
}

.hero h1 em{ font-style: italic; font-weight: 340; }

.hero-lede{
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--paper-dim);
  max-width: 44ch;
  margin: 0 0 64px;
}

.metric{
  border-top: 1px solid var(--line);
  padding-top: 28px;
  max-width: 640px;
}

.metric-number{
  display: flex;
  align-items: baseline;
  gap: 20px;
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.metric-arrow{ color: var(--paper-dim); font-size: 1.5rem; }
.metric-unit{ font-size: 0.5em; color: var(--paper-dim); }

.metric-caption{
  margin: 16px 0 0;
  font-size: 0.92rem;
  color: var(--paper-dim);
  max-width: 46ch;
}

/* ---------------------------------------------------------
   Sections (generic)
--------------------------------------------------------- */
.section{
  padding: 120px var(--edge);
  border-top: 1px solid var(--line);
}

.section-head{
  font-family: var(--serif);
  font-weight: 340;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  letter-spacing: -0.01em;
  margin: 0 0 56px;
}

.section-lede{
  color: var(--paper-dim);
  max-width: 56ch;
  margin: -32px 0 56px;
  font-size: 1.08rem;
}

/* ---------------------------------------------------------
   Work list
--------------------------------------------------------- */
.work-list{
  list-style: none;
  margin: 0;
  padding: 0;
}

.work-list li{
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 32px;
  align-items: baseline;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  transition: opacity 0.2s ease;
}

.work-list li:last-child{ border-bottom: 1px solid var(--line); }

.work-list .idx{
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--paper-dim);
  opacity: 0.5;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.work-list li:hover .idx{ color: var(--lime); opacity: 1; }

@supports (-webkit-text-stroke: 1px black){
  .work-list .idx{
    color: var(--ink-2);
    opacity: 1;
    -webkit-text-stroke: 1px var(--paper-dim);
  }
  .work-list li:hover .idx{ color: var(--lime); -webkit-text-stroke: 1px var(--lime); }
}

.work-list h3{
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  margin: 0 0 12px;
}

.work-list p{
  margin: 0;
  color: var(--paper-dim);
  font-size: 1rem;
  max-width: 48ch;
}

/* ---------------------------------------------------------
   Cycle diagram
--------------------------------------------------------- */
.cycle-wrap{
  display: flex;
  justify-content: center;
  padding: 20px 0 0;
}

.cycle{
  width: min(100%, 520px);
  height: auto;
  overflow: visible;
}

.cycle-track{
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  transition: stroke-dashoffset 1.4s cubic-bezier(.2,.7,.2,1);
}

.cycle-wrap.in-view .cycle-track{ stroke-dashoffset: 0; }

@media (prefers-reduced-motion: reduce){
  .cycle-track{ stroke-dashoffset: 0; transition: none; }
}

.cycle-node circle{ fill: var(--lime); }

.cycle-node text{
  font-family: var(--mono);
  font-size: 13px;
  fill: var(--paper);
}

/* ---------------------------------------------------------
   Case studies
--------------------------------------------------------- */
.case{
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.case:last-child{ border-bottom: 1px solid var(--line); }

.case-tag{
  display: inline-block;
  font-size: 0.72rem;
  margin-bottom: 18px;
}

.case h3{
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.case p{
  margin: 0;
  color: var(--paper-dim);
  max-width: 66ch;
  font-size: 1.05rem;
}

/* ---------------------------------------------------------
   Tools
--------------------------------------------------------- */
.tool-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.tool-list li{
  padding: 40px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 1.1rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.tool-list li:hover{ background: var(--lime); color: var(--ink); }

.tool-list .mono{
  display: block;
  font-size: 0.72rem;
  color: var(--paper-dim);
  margin-bottom: 14px;
}

.tool-list li:hover .mono{ color: var(--ink); }

/* ---------------------------------------------------------
   Contact
--------------------------------------------------------- */
.contact h2{
  font-family: var(--serif);
  font-weight: 340;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1;
  margin: 0 0 36px;
}

.big-link{
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.6rem, 5vw, 3.2rem);
  text-decoration: none;
  color: var(--lime);
  margin: 40px 0 20px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
  width: fit-content;
}

.big-link:hover, .big-link:focus-visible{ border-color: var(--lime); }

.phone{
  display: block;
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 1rem;
}

.foot{
  padding: 32px var(--edge) 48px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--paper-dim);
  border-top: 1px solid var(--line);
}

.foot p{ margin: 0; }

/* ---------------------------------------------------------
   Responsive
--------------------------------------------------------- */
@media (max-width: 720px){
  .topnav{ display: none; }

  .nav-toggle{
    display: block;
    background: transparent;
    color: var(--paper);
    border: 1px solid var(--paper);
    font-family: var(--mono);
    font-size: 0.78rem;
    padding: 6px 12px;
    cursor: pointer;
  }

  .topnav.open{
    display: flex;
    position: fixed;
    inset: 0;
    top: 68px;
    background: var(--ink);
    flex-direction: column;
    gap: 0;
    padding: 12px var(--edge);
    z-index: 39;
  }

  .topnav.open a{
    padding: 18px 0;
    border-top: 1px solid var(--line);
    font-size: 1.1rem;
  }

  .work-list li{ grid-template-columns: 1fr; gap: 10px; }
  .tool-list{ grid-template-columns: repeat(2, minmax(0,1fr)); }
}