/* =============================================
   ARKU FIT OUTS — Division Visual System v4
   Brand Palette (from official brand guidelines):
     Carbon Black  #201C15   — text / dark sections
     Deep Walnut   #3E2C17   — accent / dark CTAs
     Parchment     #EDEAE5   — primary light background
     White         #FFFFFF   — clean card surfaces
   ============================================= */

:root {
  /* ── ARKU FIT-OUTS OFFICIAL BRAND PALETTE ── */
  --fo-bg:           #EDEAE5;   /* Brand Parchment — primary section background */
  --fo-bg-2:         #E5DDD0;   /* Walnut-tinted parchment — alternate section bg */
  --fo-bg-dark:      #3E2C17;   /* Deep Walnut — dark accent sections */
  --fo-bg-ink:       #201C15;   /* Carbon Black — darkest hero/CTA sections */
  --fo-fg:           #201C15;   /* Carbon Black — primary text (on light bg) */
  --fo-fg-dim:       rgba(32, 28, 21, 0.62);
  --fo-fg-muted:     rgba(32, 28, 21, 0.38);
  --fo-fg-light:     #EDEAE5;   /* Parchment — text on dark backgrounds */
  --fo-fg-light-dim: rgba(237, 234, 229, 0.72);
  --fo-fg-light-muted: rgba(237, 234, 229, 0.45);
  --fo-accent:       #3E2C17;   /* Deep Walnut — accents, CTAs */
  --fo-accent-lt:    #5A4022;   /* Lifted walnut on hover */
  --fo-gold:         #B8925A;   /* Warm gold — labels, numbers */
  --fo-gold-bright:  #D4AF77;
  --fo-line:         rgba(32, 28, 21, 0.09);   /* hairlines on light bg */
  --fo-line-warm:    rgba(62, 44, 23, 0.14);
  --fo-line-dark:    rgba(237, 234, 229, 0.10); /* hairlines on dark bg */
  --fo-cap-bg:       #2A2318;   /* Image capability card base */
}

/* ── NAV (Fit Outs page) ──────────────────── */
/* Global cream nav-scrolled state applies — no override needed */

/* ── HERO ─────────────────────────────────── */
.fo-hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--fo-bg-ink);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: clamp(6.5rem, 12vh, 9.5rem);
}

.fo-hero__image { position: absolute; inset: 0; }

.fo-hero__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.45) contrast(1.1) saturate(0.85);
  transform: scale(1.04);
  transition: transform 8s ease-out;
}

.fo-hero__image.loaded img { transform: scale(1); }

/* Blueprint grid overlay */
.fo-hero__grid-overlay {
  position: absolute; inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(184, 146, 90, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184, 146, 90, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* Deep Walnut vignette overlay */
.fo-hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to top,
    rgba(32, 28, 21, 0.96) 0%,
    rgba(32, 28, 21, 0.45) 50%,
    rgba(32, 28, 21, 0.15) 100%
  );
  z-index: 2;
}

.fo-hero__content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  margin-top: auto;
  padding: var(--gutter);
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.fo-hero__label { color: var(--fo-gold); font-size: 0.72rem; letter-spacing: 0.16em; }

.fo-hero__title {
  font-family: var(--f-display);
  font-size: var(--fs-3xl);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--fo-fg-light);   /* Parchment on dark hero */
  margin-bottom: clamp(1.25rem, 2.5vw, 2rem);
}

.fo-hero__sub {
  font-size: var(--fs-md);
  font-weight: 300;
  color: var(--fo-fg-light-dim);
  max-width: 44ch;
  line-height: 1.65;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.fo-hero .btn {
  background: var(--fo-accent);
  color: var(--fo-fg-light);
  border: 1px solid var(--fo-gold);
}
.fo-hero .btn:hover {
  background: var(--fo-gold);
  color: var(--fo-bg-ink);
}
.fo-hero .btn-outline {
  background: transparent;
  color: var(--fo-fg-light);
  border-color: rgba(237, 234, 229, 0.35);
}
.fo-hero .btn-outline:hover {
  border-color: var(--fo-fg-light);
  background: rgba(237, 234, 229, 0.08);
}

/* ── SPEC BAR ─────────────────────────────── */
/* Sits directly below hero — transitions from dark to brand Parchment */
.fo-specbar {
  background: var(--fo-bg-dark);  /* Deep Walnut — bridge between dark hero and light sections */
  border-bottom: 1px solid var(--fo-line-dark);
  padding: clamp(1rem, 2vw, 1.75rem) var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  overflow-x: auto;
  scrollbar-width: none;
}

.fo-specbar::-webkit-scrollbar { display: none; }

.fo-spec { display: flex; flex-direction: column; gap: 0.25rem; flex-shrink: 0; }

.fo-spec__label {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fo-gold);
  font-weight: 500;
}

.fo-spec__value {
  font-family: var(--f-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  color: var(--fo-fg-light);   /* Light text on Deep Walnut bar */
}

.fo-spec__divider {
  width: 1px;
  height: 2.25rem;
  background: var(--fo-line-dark);
  flex-shrink: 0;
}

/* ── PROCESS TRACK ────────────────────────── */
.fo-process {
  background: var(--fo-bg);   /* Parchment */
  padding: var(--sp-xl) var(--gutter);
}

.fo-process__title {
  color: var(--fo-fg);         /* Carbon Black */
  font-family: var(--f-display);
  font-size: var(--fs-2xl);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.95;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.fo-process__track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  position: relative;
  border-top: 1px solid var(--fo-line);
}

.fo-process__track::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--fo-accent);  /* Deep Walnut progress line */
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.4s var(--ease-out);
}

.fo-process__track.revealed::after { transform: scaleX(1); }

.fo-process__node {
  padding: clamp(2rem, 3.5vw, 3.25rem) clamp(1rem, 1.5vw, 1.75rem);
  border-right: 1px solid var(--fo-line);
  box-sizing: border-box;
}

.fo-process__node:first-child { padding-left: 0; }
.fo-process__node:last-child { border-right: none; padding-right: 0; }

.fo-process__node-num {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--fo-gold);
  letter-spacing: 0.12em;
  font-weight: 500;
  margin-bottom: 0.9rem;
}

.fo-process__node-title {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fo-fg);         /* Carbon Black */
  margin-bottom: 0.4rem;
}

.fo-process__node-desc {
  font-size: var(--fs-xs);
  color: var(--fo-fg-dim);
  line-height: 1.6;
}

/* ── CAPABILITIES GRID ────────────────────── */
/* Image cards — kept as dark (walnut) for visual drama on a parchment page */
.fo-capabilities { background: var(--fo-bg-2); }

.fo-capabilities__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.fo-cap {
  position: relative;
  overflow: hidden;
  height: clamp(240px, 25vw, 360px);
  border: 1px solid var(--fo-line);
  cursor: pointer;
}

.fo-cap__bg {
  position: absolute; inset: 0;
  background: var(--fo-cap-bg);  /* Warm dark walnut card base */
}

.fo-cap__image {
  position: absolute; inset: 0;
  opacity: 0.32;
  transition: opacity var(--dur-med), transform var(--dur-slow) var(--ease-out);
}

.fo-cap__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.75);
  transform: scale(1.04);
  transition: transform var(--dur-slow) var(--ease-out);
}

.fo-cap:hover .fo-cap__image,
.fo-cap:focus-visible .fo-cap__image { opacity: 0.6; }
.fo-cap:hover .fo-cap__image img,
.fo-cap:focus-visible .fo-cap__image img { transform: scale(1); }

/* Gold accent top border on hover */
.fo-cap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--fo-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
  z-index: 3;
}
.fo-cap:hover::before,
.fo-cap:focus-visible::before { transform: scaleX(1); }

.fo-cap__content {
  position: relative; z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.25rem, 2vw, 2rem);
}

.fo-cap__num {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--fo-gold);
  letter-spacing: 0.12em;
  font-weight: 500;
  margin-bottom: 0.65rem;
}

.fo-cap__title {
  font-family: var(--f-display);
  font-size: var(--fs-lg);
  font-weight: 400;
  color: var(--fo-fg-light);   /* Parchment on dark card */
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}

.fo-cap__desc {
  font-size: var(--fs-xs);
  color: var(--fo-fg-light-dim);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-med) var(--ease-out), opacity var(--dur-med);
}

.fo-cap:hover .fo-cap__desc,
.fo-cap:focus-visible .fo-cap__desc { max-height: 6rem; opacity: 1; }

/* ── FOOTER (Fit Outs page) ───────────────── */
/* Global dark ink footer applies — no override needed */

/* ══ RESPONSIVE ═══════════════════════════════ */
@media (max-width: 1200px) {
  .fo-capabilities__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .fo-process__track { grid-template-columns: repeat(3, 1fr); }
  .fo-process__node {
    padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1rem, 1.5vw, 1.5rem);
    border-bottom: 1px solid var(--fo-line);
  }
  .fo-process__node:nth-child(3n+1) { padding-left: 0; }
  .fo-process__node:nth-child(3n) { border-right: none; padding-right: 0; }
  .fo-process__node:nth-last-child(-n+3) { border-bottom: none; }

  .fo-capabilities__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  /* Tablet portrait — process 2-col */
  .fo-process__track { grid-template-columns: repeat(2, 1fr); }
  .fo-process__node { padding: clamp(1.25rem, 2.5vw, 2rem) clamp(0.75rem, 1.5vw, 1.25rem); border-bottom: 1px solid var(--fo-line); }
  .fo-process__node:nth-child(2n+1) { padding-left: 0; }
  .fo-process__node:nth-child(2n) { border-right: none; padding-right: 0; }
  .fo-process__node:nth-last-child(-n+2) { border-bottom: none; }
  /* Capabilities: 2-col on tablet */
  .fo-capabilities__grid { grid-template-columns: repeat(2, 1fr); }
  .fo-cap { height: clamp(220px, 30vw, 320px); }
  /* Hero CTA wraps */
  .fo-hero__ctas { flex-wrap: wrap; gap: 0.75rem; }
}

@media (max-width: 768px) {
  .fo-hero__title { font-size: clamp(2rem, 10vw, 3.5rem); }
  .fo-hero__sub { font-size: var(--fs-base); max-width: 100%; }

  .fo-process__track { grid-template-columns: repeat(2, 1fr); }
  .fo-process__node {
    padding: clamp(1.25rem, 2.5vw, 2rem) clamp(0.75rem, 1.5vw, 1.25rem);
    border-bottom: 1px solid var(--fo-line);
  }
  .fo-process__node:nth-child(2n+1) { padding-left: 0; }
  .fo-process__node:nth-child(2n) { border-right: none; padding-right: 0; }
  .fo-process__node:nth-last-child(-n+2) { border-bottom: none; }

  .fo-capabilities__grid { grid-template-columns: 1fr 1fr; }
  .fo-cap { height: clamp(200px, 45vw, 280px); }
  .fo-cap__desc { max-height: 6rem; opacity: 1; }
}

@media (max-width: 520px) {
  .fo-capabilities__grid { grid-template-columns: 1fr; }
  .fo-cap { height: 220px; }
  .fo-spec__divider { display: none; }
  .fo-hero__sub { display: none; }
  /* Hero CTA buttons stack */
  .fo-hero__ctas { flex-direction: column; align-items: flex-start; }
  .fo-hero__ctas .btn { width: 100%; justify-content: center; }
}

@media (max-width: 375px) {
  .fo-hero__title { font-size: clamp(1.8rem, 11vw, 2.5rem); }
  /* Process nodes: 1-col on very small screens */
  .fo-process__track { grid-template-columns: 1fr; }
  .fo-process__node { border-right: none; border-bottom: 1px solid var(--fo-line); padding-left: 0; padding-right: 0; }
  .fo-process__node:last-child { border-bottom: none; }
}