/* =============================================================
   Eternal Avatar — a numbered prospectus
   Archival / editorial system. Parchment, ink, antique brass.
   Display: Fraunces · Body: Newsreader · Labels: IBM Plex Mono
   ============================================================= */

:root {
  --paper:      #F3EDDF;
  --paper-2:    #ECE3D0;   /* alternating panel */
  --paper-edge: #E4D9C0;
  --ink:        #211D16;
  --ink-soft:   #4C4636;
  --ink-faint:  #6E6750;
  --brass:      #9A7A3C;
  --brass-deep: #7C6028;
  --stone:      #B4A684;
  --line:       #D6CBB1;
  --line-soft:  #E0D6BF;
  --oxblood:    #6E2A24;
  --dark:       #1B1813;
  --dark-2:     #232017;
  --paper-rev:  #EFE7D4;   /* paper colour reversed onto dark */
  --rev-faint:  #B9AE92;

  --measure: 38rem;
  --wrap: 75rem;
  --gutter: clamp(1.25rem, 5vw, 4.5rem);

  --ff-display: "Fraunces", Georgia, "Times New Roman", serif;
  --ff-body: "Newsreader", Georgia, serif;
  --ff-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--ff-body);
  font-optical-sizing: auto;
  font-size: clamp(1.06rem, 0.55vw + 0.95rem, 1.22rem);
  line-height: 1.62;
  color: var(--ink);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* faint paper grain + warmth, painted behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 90% at 78% -10%, rgba(154,122,60,0.10), transparent 60%),
    radial-gradient(120% 80% at 0% 110%, rgba(110,42,36,0.05), transparent 55%),
    var(--paper);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.045'/%3E%3C/svg%3E");
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }

::selection { background: var(--brass); color: var(--paper); }

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.measure { max-width: var(--measure); }
.section { padding-block: clamp(4rem, 9vw, 8.5rem); position: relative; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }

/* ---------- type ---------- */
h1, h2, h3, h4 { font-family: var(--ff-display); font-weight: 380; line-height: 1.04; letter-spacing: -0.014em; font-optical-sizing: auto; }
h1 { font-size: clamp(2.6rem, 6.4vw, 5.4rem); font-weight: 340; line-height: 0.99; }
h2 { font-size: clamp(1.95rem, 3.8vw, 3.15rem); }
h3 { font-size: clamp(1.35rem, 1.6vw, 1.7rem); font-weight: 420; letter-spacing: -0.008em; }
h4 { font-size: 1.15rem; font-weight: 460; letter-spacing: 0; }
p { text-wrap: pretty; }
em { font-style: italic; }
strong { font-weight: 560; }

.display-italic { font-style: italic; font-variation-settings: "SOFT" 40, "WONK" 1; }

/* eyebrow / catalogue label */
.eyebrow {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--brass-deep);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 1.7rem;
  height: 1px;
  background: var(--brass);
  display: inline-block;
}
.eyebrow--plain::before { display: none; }

/* folio — the big section number */
.folio {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.lead {
  font-size: clamp(1.3rem, 1.4vw + 1rem, 1.85rem);
  line-height: 1.42;
  font-weight: 360;
  color: var(--ink);
  letter-spacing: -0.006em;
}
.lead em { color: var(--brass-deep); }

.prose p + p { margin-top: 1.15em; }
.prose p { max-width: var(--measure); }
.subtle { color: var(--ink-soft); }
.faint { color: var(--ink-faint); }

/* drop cap on first paragraph after .dropcap */
.dropcap::first-letter {
  font-family: var(--ff-display);
  font-weight: 380;
  float: left;
  font-size: 3.9em;
  line-height: 0.72;
  padding: 0.06em 0.1em 0 0;
  color: var(--brass-deep);
}

/* marginal note */
.marginal {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--ink-faint);
  border-left: 1px solid var(--brass);
  padding-left: 0.9rem;
}

/* hairline rule */
.rule { height: 1px; background: var(--line); border: 0; transform-origin: left center; }
.rule--brass { background: var(--brass); }

/* ---------- header ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--paper) 86%, transparent);
  backdrop-filter: blur(8px) saturate(1.1);
  border-bottom: 1px solid var(--line);
}
.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.85rem;
}
.brandmark { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; color: var(--ink); }
.brandmark svg { width: 30px; height: 30px; flex: none; }
.brandmark__word {
  font-family: var(--ff-display);
  font-weight: 460;
  font-size: 1.04rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.brandmark__word small {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.54rem;
  letter-spacing: 0.34em;
  color: var(--ink-faint);
  margin-top: 1px;
}

.nav { display: flex; align-items: center; gap: clamp(0.9rem, 2vw, 2.1rem); }
.nav a {
  position: relative;
  text-decoration: none;
  font-family: var(--ff-mono);
  font-size: 0.74rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-block: 0.3rem;
  transition: color 0.3s var(--ease);
}
.nav a .n { color: var(--brass); margin-right: 0.45em; font-size: 0.62rem; }
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--ink); }

.nav-toggle { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.95em 1.5em;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  border-radius: 1px;
  transition: background 0.4s var(--ease), color 0.4s var(--ease), transform 0.4s var(--ease);
}
.btn .arrow { transition: transform 0.4s var(--ease); }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--brass { border-color: var(--brass-deep); background: var(--brass-deep); color: var(--paper); }
.btn--brass:hover { background: var(--ink); border-color: var(--ink); }
.btn--ghost { border-color: var(--line); color: var(--ink-soft); }
.btn--ghost:hover { background: transparent; color: var(--ink); border-color: var(--ink); }

.textlink {
  color: var(--brass-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--stone);
  transition: border-color 0.3s var(--ease);
  font-style: italic;
}
.textlink:hover { border-color: var(--brass-deep); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(3rem, 7vw, 6rem) clamp(3rem, 7vw, 5.5rem); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero h1 { margin-top: 1.4rem; }
.hero h1 .soft { color: var(--ink-soft); }
.hero__sub { margin-top: 1.8rem; max-width: 30rem; }
.hero__actions { margin-top: 2.4rem; display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; align-items: center; }
.hero__plate { position: relative; }

/* plate (figure with line art) */
.plate {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.25), transparent 30%),
    var(--paper-2);
  padding: clamp(1rem, 2vw, 1.6rem);
  box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset, 0 22px 50px -38px rgba(33,29,22,0.55);
}
.plate::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}
.plate figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.9rem;
  font-family: var(--ff-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.plate figcaption .ttl { color: var(--ink-soft); }

/* line-art drawing animation */
.ink-line, .ink-draw path, .ink-draw line, .ink-draw circle, .ink-draw rect, .ink-draw polyline {
  vector-effect: non-scaling-stroke;
}
.draw-on { stroke-dasharray: var(--len, 1200); stroke-dashoffset: var(--len, 1200); transition: stroke-dashoffset 1.7s var(--ease); }
.reveal.in .draw-on { stroke-dashoffset: 0; }
.dot-on { opacity: 0; transition: opacity 0.6s var(--ease) 0.9s; }
.reveal.in .dot-on { opacity: 1; }

/* ---------- generic grids ---------- */
.grid { display: grid; gap: clamp(1.5rem, 3vw, 3rem); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.split--rev { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }

.stack > * + * { margin-top: 1.1rem; }
.stack-lg > * + * { margin-top: 1.8rem; }

/* numbered feature list */
.ledger { list-style: none; padding: 0; }
.ledger li {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 1.3rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
}
.ledger li:last-child { border-bottom: 1px solid var(--line); }
.ledger .idx { font-family: var(--ff-mono); font-size: 0.78rem; color: var(--brass); letter-spacing: 0.1em; padding-top: 0.45rem; }
.ledger h3 { margin-bottom: 0.4rem; }
.ledger p { color: var(--ink-soft); font-size: 1.02rem; }

/* card */
.card {
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: clamp(1.5rem, 2.4vw, 2.2rem);
  position: relative;
}
.card .kicker { margin-bottom: 0.9rem; }
.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--ink-soft); font-size: 1.02rem; }
.card__num {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--brass);
  position: absolute;
  top: clamp(1.5rem, 2.4vw, 2.2rem);
  right: clamp(1.5rem, 2.4vw, 2.2rem);
}

/* dark feature band */
.band-dark {
  background:
    radial-gradient(120% 120% at 80% 0%, rgba(154,122,60,0.16), transparent 55%),
    var(--dark);
  color: var(--paper-rev);
  position: relative;
}
.band-dark::before {
  content:"";
  position:absolute; inset:0;
  pointer-events:none; opacity:0.5; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}
.band-dark .eyebrow { color: var(--brass); }
.band-dark .eyebrow::before { background: var(--brass); }
.band-dark .subtle, .band-dark .faint { color: var(--rev-faint); }
.band-dark .rule { background: rgba(185,174,146,0.25); }
.band-dark a.textlink { color: #d8b66a; border-color: rgba(216,182,106,0.4); }

/* pull quote */
.pull {
  font-family: var(--ff-display);
  font-weight: 340;
  font-size: clamp(1.7rem, 3.2vw, 2.9rem);
  line-height: 1.16;
  letter-spacing: -0.012em;
}
.pull .display-italic { color: var(--brass); }

/* panel (alt bg) */
.panel-2 { background: var(--paper-2); border-block: 1px solid var(--line); }

/* small caps meta row */
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.meta-row span { display: inline-flex; gap: 0.5em; }
.meta-row b { color: var(--brass-deep); font-weight: 500; }

/* definition rows */
.deflist { display: grid; gap: 0; }
.deflist .row { display: grid; grid-template-columns: minmax(0,0.8fr) minmax(0,1.6fr); gap: 1.5rem; padding-block: 1.4rem; border-top: 1px solid var(--line); }
.deflist .row:last-child { border-bottom: 1px solid var(--line); }
.deflist dt { font-family: var(--ff-display); font-size: 1.18rem; font-weight: 420; }
.deflist dd { color: var(--ink-soft); font-size: 1.02rem; }

/* timeline (idea/venture) */
.phases { counter-reset: ph; display: grid; gap: 0; }
.phase {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: clamp(1.6rem, 3vw, 2.4rem);
  border-top: 1px solid var(--line);
}
.phase:last-child { border-bottom: 1px solid var(--line); }
.phase__no { font-family: var(--ff-mono); font-size: 0.72rem; letter-spacing: 0.14em; color: var(--brass); text-transform: uppercase; }
.phase__no b { display:block; font-family: var(--ff-display); font-size: 2.4rem; color: var(--ink); letter-spacing: -0.02em; margin-top: 0.2rem; }
.phase h3 { margin-bottom: 0.5rem; }
.phase p { color: var(--ink-soft); max-width: 40rem; }
.phase .tags { margin-top: 0.9rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag { font-family: var(--ff-mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); border: 1px solid var(--line); padding: 0.3em 0.7em; }

/* contact / application block */
.apply {
  border: 1px solid var(--ink);
  padding: clamp(2rem, 5vw, 4rem);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.18), transparent 40%),
    var(--paper-2);
  position: relative;
}
.apply::after {
  content:"";
  position:absolute; inset: 9px;
  border:1px solid var(--brass);
  opacity:0.35; pointer-events:none;
}
.seal {
  width: 84px; height: 84px;
}

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); background: var(--paper-2); }
.footer__inner { padding-block: clamp(2.5rem, 5vw, 4rem); display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.footer h4 { font-family: var(--ff-mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); font-weight: 500; margin-bottom: 1rem; }
.footer a { color: var(--ink-soft); text-decoration: none; transition: color 0.3s var(--ease); display: inline-block; }
.footer a:hover { color: var(--brass-deep); }
.footer__links { display: grid; gap: 0.5rem; font-family: var(--ff-mono); font-size: 0.78rem; letter-spacing: 0.04em; }
.footer__brand .brandmark { margin-bottom: 1rem; }
.footer__brand p { color: var(--ink-faint); font-size: 0.95rem; max-width: 22rem; }
.colophon {
  border-top: 1px solid var(--line);
  padding-block: 1.4rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem;
  font-family: var(--ff-mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--ink-faint); text-transform: uppercase;
}

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }
.reveal[data-d="5"] { transition-delay: 0.40s; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__plate { order: -1; max-width: 30rem; }
  .split, .split--rev { grid-template-columns: 1fr; }
  .cols-3 { grid-template-columns: 1fr; }
  .cols-2 { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 2.2rem; }

  /* backdrop-filter on an ancestor would make it the containing block for the
     fixed drawer; drop it on mobile so the overlay fills the viewport */
  .masthead { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--paper); }
  .nav {
    position: fixed;
    inset: 0;
    width: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.9rem;
    padding: 2.5rem;
    background: var(--paper);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease);
    z-index: 40;
  }
  .nav.open { transform: none; }
  .nav a { font-size: 1.1rem; color: var(--ink); }
  .nav a .n { font-size: 0.72rem; }
  .nav-toggle {
    display: inline-flex; flex-direction: column; gap: 5px;
    background: none; border: 0; cursor: pointer; padding: 6px;
    position: relative; z-index: 60;
  }
  .nav-toggle span { width: 26px; height: 1.5px; background: var(--ink); transition: transform 0.4s var(--ease), opacity 0.3s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  .phase { grid-template-columns: 1fr; gap: 0.6rem; }
  .deflist .row { grid-template-columns: 1fr; gap: 0.4rem; }
  .ledger li { grid-template-columns: 2.4rem 1fr; gap: 0.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .draw-on { stroke-dashoffset: 0; transition: none; }
  .dot-on { opacity: 1; transition: none; }
  * { animation: none !important; }
}