/* ============================================================
   UNILIT — Northern Fitness case study styles
   ============================================================ */

:root {
  --nf-orange:      #FF5700;
  --nf-orange-d:    #E04B00;
  --nf-black:       #111111;
  --nf-dark:        #1A1A1A;
  --nf-gray:        #2C2C2C;
  --nf-light:       #F4F4F4;
  --nf-mid:         #666;
  --nf-line:        rgba(17,17,17,.10);
}

body {
  background: var(--nf-light);
  color: var(--nf-black);
}

.back-bar  { background: var(--nf-light); border-color: var(--nf-line); }
.back-link { color: rgba(17,17,17,.4); }
.back-link:hover { color: var(--nf-black); }

/* Hero — dark, bold, performance */
.cs-hero {
  background: var(--nf-black);
  height: 92vh; min-height: 620px;
  position: relative;
  display: flex; align-items: flex-end;
}

.cs-hero-img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: .35; filter: grayscale(20%);
}

.cs-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top,
    rgba(17,17,17,1) 0%,
    rgba(17,17,17,.75) 40%,
    rgba(17,17,17,.2) 100%);
}

.cs-hero-body {
  position: relative; z-index: 2;
  padding: 0 24px 72px; width: 100%; max-width: 1188px; margin: 0 auto;
}

.cs-eyebrow { color: var(--nf-orange); letter-spacing: .18em; }
.cs-eyebrow::before { background: var(--nf-orange); }

.cs-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(42px, 6.5vw, 84px);
  line-height: .96; letter-spacing: -.025em;
  color: #fff; margin-bottom: 8px;
}

.cs-hero h1 .hero-sub {
  display: block; color: var(--nf-orange);
  font-size: clamp(28px, 4vw, 52px); letter-spacing: -.02em;
}

.brand-descriptor {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .18em; text-transform: uppercase;
  color: rgba(255,255,255,.42); margin-bottom: 38px;
}

.cs-meta { border-top-color: rgba(255,255,255,.12); padding-top: 28px; }
.cs-meta-item { border-right-color: rgba(255,255,255,.12); padding-right: 36px; margin-right: 36px; }
.meta-label { color: rgba(255,255,255,.35) !important; }
.meta-val   { color: #fff !important; }

/* Stats bar */
.stats-bar {
  background: var(--nf-orange);
  padding: 0;
}

.stats-bar-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 760px) { .stats-bar-inner { grid-template-columns: repeat(2,1fr); } }

.stat-item {
  padding: 32px 28px;
  border-right: 1px solid rgba(255,255,255,.2);
  border-bottom: 1px solid rgba(255,255,255,.2);
}

.stat-item:last-child { border-right: none; }

.stat-item .s-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1; letter-spacing: -.02em;
  color: #fff; margin-bottom: 6px;
}

.stat-item .s-label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: rgba(255,255,255,.75);
}

/* Brand scroll */
.brand-scroll {
  background: var(--nf-black);
  padding: 20px 0;
  overflow: hidden;
  border-bottom: 3px solid var(--nf-orange);
}

.brand-track {
  display: flex; gap: 0; white-space: nowrap;
}

.brand-item {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: rgba(255,255,255,.40);
  padding: 0 20px;
  display: inline-flex; align-items: center; gap: 20px; flex-shrink: 0;
}

.brand-item::after { content: "/"; color: rgba(255,255,255,.15); }

/* Sections */
.cs-section { border-bottom: 1px solid var(--nf-line); }
.section-label { color: var(--nf-orange); opacity: 1; }
.cs-section h2 { color: var(--nf-black); }
.cs-section p  { color: var(--nf-mid); }

/* Deliverables */
.deliverables { background: rgba(17,17,17,.04); }
.del {
  background: #fff;
  border: 1px solid var(--nf-line);
  padding: 28px 24px;
  border-top: 3px solid transparent;
  transition: border-top-color .18s, transform .18s;
}
.del:hover { border-top-color: var(--nf-orange); transform: translateY(-2px); }
.del .d-num { color: var(--nf-orange); font-weight: 700; }
.del h3 { color: var(--nf-black); }
.del p  { color: var(--nf-mid); }

/* Screenshots */
.screenshots { background: var(--nf-light); border-bottom: 1px solid var(--nf-line); }
.shot { background: #fff; box-shadow: 0 4px 24px rgba(17,17,17,.10); }
.shot-caption { color: rgba(17,17,17,.45); border-top-color: var(--nf-line); }

/* Stack */
.stack-section { border-bottom: 1px solid var(--nf-line); }
.stack-section h2 { color: var(--nf-black); }
.pill {
  border: 1px solid rgba(17,17,17,.16);
  color: rgba(17,17,17,.65);
  border-radius: 3px;
}
.pill:hover { border-color: var(--nf-orange); color: var(--nf-orange); }

/* CTA */
.cs-cta { background: var(--nf-black); }
.cs-cta h2 { color: #fff; }
.cs-cta p  { color: rgba(255,255,255,.45); }

.btn-cta-primary {
  display: inline-block;
  background: var(--nf-orange); color: #fff !important;
  font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  padding: 14px 32px; border-radius: 3px; border: 1px solid var(--nf-orange);
  transition: background .18s, transform .18s;
}
.btn-cta-primary:hover { background: var(--nf-orange-d); transform: translateY(-1px); }

.btn-cta-ghost {
  display: inline-block; background: transparent; color: rgba(255,255,255,.65);
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
  padding: 14px 32px; border-radius: 3px; border: 1px solid rgba(255,255,255,.16);
  transition: border-color .18s, color .18s;
}
.btn-cta-ghost:hover { border-color: rgba(255,255,255,.5); color: #fff; }