:root {
  --bg-base: #17140F;
  --bg-raised: #211C15;
  --bg-silver: #1E1D1C;
  --bg-gold: #221B0E;

  --bronze: #B0713F;
  --bronze-dim: #6E4A2C;
  --silver: #C3C5C1;
  --silver-dim: #7C7E79;
  --gold: #DDAE3F;
  --gold-dim: #8C6C21;

  --ink: #EFE8D9;
  --ink-dim: #A79E8D;
  --ink-faint: #6E6656;

  --display: "Space Grotesk", sans-serif;
  --body: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;

  --edge: 1px solid rgba(239, 232, 217, 0.1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg-base);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin: 0 0 1.1rem;
}
.eyebrow--bronze { color: var(--bronze); }
.eyebrow--silver { color: var(--silver); }
.eyebrow--gold { color: var(--gold); }

/* ---------- scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 30;
  background: transparent;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--bronze), var(--gold));
  box-shadow: 0 0 8px rgba(221, 174, 63, 0.55);
  transition: width 0.1s linear;
}

/* ---------- sticky nav (appears once you scroll past the hero) ---------- */
.stickynav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem clamp(1.5rem, 6vw, 5rem);
  background: rgba(23, 20, 15, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--edge);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none;
}
.stickynav.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.stickynav__mark {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
}
.stickynav__links { display: flex; gap: 1.75rem; }
.stickynav__links a {
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.stickynav__links a:hover { color: var(--ink); }
.stickynav__links a.is-active { color: var(--gold); border-color: var(--gold); }

/* ---------- grain (hero only, subtle) ---------- */
.grain {
  position: fixed;
  inset: 0;
  height: 100vh;
  pointer-events: none;
  z-index: 5;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.75rem clamp(1.5rem, 6vw, 5rem) 3rem;
  background:
    radial-gradient(ellipse 70% 55% at 20% -10%, rgba(176,113,63,0.18), transparent 60%),
    radial-gradient(ellipse 60% 45% at 90% 10%, rgba(221,174,63,0.10), transparent 60%),
    var(--bg-base);
  overflow: hidden;
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}
.topnav__mark {
  font-family: var(--mono);
  border: var(--edge);
  border-radius: 4px;
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--ink-dim);
  white-space: nowrap;
}
.topnav__links a {
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin-left: 1.75rem;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.topnav__links a:hover { color: var(--gold); border-color: var(--gold); }

.hero__content {
  max-width: 780px;
  margin: auto 0;
  position: relative;
  z-index: 2;
}
.hero__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.3rem, 6vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 1.4rem;
  background: linear-gradient(120deg, var(--ink) 40%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub {
  max-width: 560px;
  color: var(--ink-dim);
  font-size: 1.08rem;
  margin: 0 0 2.2rem;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  font-family: var(--mono);
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border-radius: 3px;
  display: inline-block;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn--gold {
  background: var(--gold);
  color: #1A1408;
  font-weight: 500;
}
.btn--gold:hover { background: #EABF5C; transform: translateY(-1px); }
.btn--ghost {
  border: 1px solid var(--ink-faint);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }

.hero__scroll {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink-faint);
}
.hero__scroll span {
  width: 1px;
  height: 34px;
  background: linear-gradient(var(--bronze), transparent);
}
.hero__scroll p {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  margin: 0;
}

/* ---------- layers ---------- */
.layer {
  padding: clamp(4rem, 9vw, 7rem) clamp(1.5rem, 6vw, 5rem);
  border-top: var(--edge);
}
.layer--bronze { background: linear-gradient(180deg, var(--bg-base), var(--bg-raised)); }
.layer--silver { background: var(--bg-silver); }
.layer--gold   { background: linear-gradient(180deg, var(--bg-raised), var(--bg-gold)); }

.layer__inner { max-width: 980px; margin: 0 auto; }
.layer__title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  margin: 0 0 2.4rem;
}

/* bronze */
.layer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: start;
}
.layer__lead { font-size: 1.08rem; color: var(--ink); margin: 0; }
.layer__facts {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  border-left: 1px solid var(--bronze-dim);
  padding-left: 1.6rem;
}
.fact { display: flex; flex-direction: column; }
.fact__num {
  font-family: var(--mono);
  font-size: 1.6rem;
  color: var(--bronze);
}
.fact__label { color: var(--ink-dim); font-size: 0.92rem; }
.layer__deliver {
  margin-top: 2.2rem;
  max-width: 780px;
}
.layer__deliver-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bronze);
  margin: 0 0 0.9rem;
}
.layer__deliver-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}
.layer__deliver-list li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.5;
}
.layer__deliver-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--bronze);
}
.layer__note {
  margin-top: 1.6rem;
  padding-top: 2rem;
  border-top: var(--edge);
  color: var(--ink-dim);
  max-width: 720px;
}

/* silver */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 2.4rem;
}
.tool-group h3 {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--silver);
  margin: 0 0 0.9rem;
  text-transform: uppercase;
}
.tool-group ul { list-style: none; margin: 0; padding: 0; }
.tool-group li {
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(239,232,217,0.06);
  font-size: 0.98rem;
  color: var(--ink);
}
.tool-group li:last-child { border-bottom: none; }

/* gold / projects */
.project-card {
  position: relative;
  overflow: hidden;
  background: rgba(239, 232, 217, 0.03);
  border: var(--edge);
  border-radius: 6px;
  padding: 2.2rem clamp(1.4rem, 3vw, 2.6rem);
  margin-bottom: 1.4rem;
  transition: border-color 0.2s ease;
}
.project-card:hover {
  border-color: var(--gold-dim);
}
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(221, 174, 63, 0.22), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
@media (hover: hover) {
  .project-card:hover::before { opacity: 1; }
}
.project-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}
.project-card h3 {
  font-family: var(--display);
  font-size: 1.5rem;
  margin: 0;
  color: var(--gold);
}
.project-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.2rem;
}
.project-card__link {
  font-family: var(--mono);
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink-dim);
  border-bottom: 1px solid transparent;
}
.project-card__link:hover { color: var(--gold); border-color: var(--gold); }
.project-card__desc {
  color: var(--ink-dim);
  max-width: 720px;
  font-size: 1.02rem;
  margin: 0 0 0.9rem;
}
.project-card__points {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  max-width: 720px;
}
.project-card__points li {
  position: relative;
  padding-left: 1.3rem;
  color: var(--ink);
  font-size: 0.94rem;
  line-height: 1.5;
}
.project-card__points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--gold);
}
.project-card__points a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-dim);
}
.project-card__points a:hover { border-color: var(--gold); }
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.project-card__tags li {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--gold);
  border: 1px solid var(--gold-dim);
  border-radius: 3px;
  padding: 0.28rem 0.6rem;
}

.project-card__gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.8rem;
}
.project-card__gallery figure {
  margin: 0;
  border: var(--edge);
  border-radius: 5px;
  overflow: hidden;
  background: rgba(0,0,0,0.25);
}
.project-card__gallery img {
  display: block;
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: top;
  cursor: zoom-in;
  transition: transform 0.35s ease;
}
.project-card__gallery figure:hover img { transform: scale(1.06); }
.project-card__gallery figcaption {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-dim);
  padding: 0.55rem 0.7rem;
  border-top: var(--edge);
}

/* ---------- lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2.5rem clamp(1.5rem, 6vw, 5rem);
  background: rgba(10, 8, 5, 0.92);
  backdrop-filter: blur(3px);
}
.lightbox[hidden] { display: none; }
.lightbox__img {
  max-width: min(90vw, 1000px);
  max-height: 78vh;
  object-fit: contain;
  border: var(--edge);
  border-radius: 6px;
  background: rgba(0,0,0,0.25);
}
.lightbox__caption {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin: 0;
  text-align: center;
}
.lightbox__close {
  position: absolute;
  top: 1.4rem;
  right: clamp(1.5rem, 6vw, 5rem);
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 4px;
  border: 1px solid var(--ink-faint);
  background: transparent;
  color: var(--ink);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lightbox__close:hover { color: var(--gold); border-color: var(--gold); }

/* ---------- footer ---------- */
.site-footer {
  background: var(--bg-base);
  border-top: var(--edge);
  padding: 3rem clamp(1.5rem, 6vw, 5rem);
}
.site-footer__inner {
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.site-footer__name { font-family: var(--display); font-weight: 600; margin: 0; }
.site-footer__links { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.site-footer__links a {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.site-footer__links a:hover { color: var(--gold); border-color: var(--gold); }
.site-footer__copy {
  width: 100%;
  color: var(--ink-faint);
  font-size: 0.78rem;
  margin: 1rem 0 0;
}

/* ---------- reveal ----------
   Content is fully visible and legible with no JS at all;
   the observer only adds a small upward slide as a bonus. */
.reveal { transform: translateY(14px); transition: transform 0.6s ease; }
.reveal.is-visible { transform: translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 760px) {
  .layer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .layer__facts { border-left: none; border-top: 1px solid var(--bronze-dim); padding-left: 0; padding-top: 1.4rem; flex-direction: row; flex-wrap: wrap; }
  .fact { min-width: 130px; }
  .topnav { flex-wrap: wrap; row-gap: 0.6rem; }
  .topnav__links { flex-wrap: wrap; row-gap: 0.4rem; }
  .topnav__links a { margin-left: 1.1rem; }
  .stickynav { padding: 0.8rem 1.5rem; flex-wrap: wrap; row-gap: 0.5rem; }
  .stickynav__links { gap: 1.1rem; flex-wrap: wrap; row-gap: 0.4rem; }
}