/* Use-case page styles. Loaded after tokens.css + lang.css. */

/* ---- Top nav ---- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,14,26,0.7);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; letter-spacing: -0.4px; color: var(--text); text-decoration: none; }
.brand-mark { width: 34px; height: 34px; border-radius: 12px; background: var(--grad); display: grid; place-items: center; box-shadow: 0 6px 20px rgba(6,182,212,0.32), inset 0 1px 0 rgba(255,255,255,0.2); }
.brand-go { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: var(--text-soft); text-decoration: none; font-size: 14px; font-weight: 500; transition: color 0.15s; }
.nav-links a:hover, .nav-links a.is-active { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
@media (max-width: 880px) { .nav-links { display: none; } }

/* ---- Buttons ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 22px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 600; text-decoration: none; cursor: pointer; transition: all 0.2s; border: none; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 24px rgba(6,182,212,0.35), inset 0 1px 0 rgba(255,255,255,0.2); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(6,182,212,0.45); }
.btn-secondary { background: rgba(255,255,255,0.06); color: var(--text); border: 1px solid var(--line); }
.btn-secondary:hover { background: rgba(255,255,255,0.10); }
.btn-ghost { background: transparent; color: var(--text-soft); }
.btn-ghost:hover { color: var(--text); }

/* ---- Eyebrow ---- */
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; background: var(--tint); border: 1px solid rgba(6,182,212,0.25); border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--hi); margin-bottom: 18px; }
.eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }

/* ---- Hero — billboard scale, matches React landing visual weight ---- */
.uc-hero { position: relative; overflow: hidden; padding: 80px 0 72px; }
.uc-hero::before { content: ""; position: absolute; inset: 0; background: var(--grad-glow); pointer-events: none; z-index: 0; }
.uc-hero > .container { max-width: 1400px; }
.uc-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;  /* image column gets more weight */
  gap: 56px;
  align-items: center;
  position: relative; z-index: 1;
}
.uc-hero h1 { font-size: clamp(40px, 5.6vw, 72px); line-height: 1.02; letter-spacing: -0.025em; font-weight: 800; margin: 0 0 20px; }
.uc-hero h1 .gw { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.uc-hero-sub { font-size: 19px; color: var(--text-soft); max-width: 580px; margin-bottom: 28px; line-height: 1.5; }
.uc-hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.uc-hero-trust { font-size: 12px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 8px; }
.uc-hero-trust .dot { width: 6px; height: 6px; background: #10b981; border-radius: 50%; box-shadow: 0 0 8px #10b981; }
.uc-hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(99,102,241,0.18) 0%, rgba(6,182,212,0.18) 100%);
  display: grid; place-items: center;
  color: var(--text-muted); font-size: 12px;
  box-shadow: 0 32px 80px rgba(6,182,212,0.18), 0 0 0 1px rgba(6,182,212,0.15) inset;
}
.uc-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.uc-stats > .container { max-width: 1400px; }
.uc-sec > .container { max-width: 1400px; }
@media (max-width: 1080px) {
  .uc-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .uc-hero { padding: 48px 0 40px; }
}

/* ---- Stats strip ---- */
.uc-stats { padding: 28px 0 56px; }
.uc-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.uc-stat { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.uc-stat .v { font-family: 'JetBrains Mono', monospace; font-size: 26px; font-weight: 700; color: var(--hi); margin-bottom: 4px; }
.uc-stat .l { font-size: 13px; color: var(--text); font-weight: 600; }
.uc-stat .s { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
@media (max-width: 880px) { .uc-stats-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---- Section ---- */
.uc-sec { padding: 72px 0; border-top: 1px solid var(--line); }
.sec-eyebrow { font-size: 11px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--hi); margin-bottom: 16px; }
.sec-title { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.1; letter-spacing: -0.02em; font-weight: 800; margin-bottom: 14px; }
.sec-title .gw { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.sec-sub { font-size: 17px; color: var(--text-soft); max-width: 700px; margin-bottom: 36px; }

/* ---- Bridge ---- */
.uc-bridge { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 32px; display: flex; gap: 22px; align-items: center; }
.uc-bridge p { color: var(--text-soft); flex: 1; }

/* ---- Themes ---- */
.uc-themes { display: grid; gap: 36px; }
.uc-theme { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: start; }
.uc-theme:nth-child(even) { grid-template-columns: 0.9fr 1.1fr; }
.uc-theme:nth-child(even) .uc-theme-text { order: 2; }
.uc-theme h2 { font-size: 28px; line-height: 1.15; font-weight: 800; margin-bottom: 14px; }
.uc-theme-body { color: var(--text-soft); margin-bottom: 20px; }
.uc-theme-subs { display: grid; gap: 12px; }
.uc-theme-sub { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.uc-theme-sub h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.uc-theme-sub-value { font-size: 13px; color: var(--text-muted); }
.uc-theme-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 4/3; background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(99,102,241,0.12)); }
.uc-theme-img img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 880px) { .uc-theme, .uc-theme:nth-child(even) { grid-template-columns: 1fr; } .uc-theme:nth-child(even) .uc-theme-text { order: 0; } }

/* ---- Pillars ---- */
.uc-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.uc-pillar { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: relative; }
.uc-pillar::before { content: counter(p); counter-increment: p; position: absolute; top: 22px; right: 22px; font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text-muted); }
.uc-pillars { counter-reset: p; }
.uc-pillar h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; color: var(--hi); }
.uc-pillar p { color: var(--text-soft); font-size: 14px; }
@media (max-width: 880px) { .uc-pillars { grid-template-columns: 1fr; } }

/* ---- Case study ---- */
.uc-case { background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.uc-case h3 { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.uc-case p { color: var(--text-soft); margin-bottom: 14px; }
.uc-case-kpi { background: var(--tint); border: 1px solid rgba(6,182,212,0.25); border-radius: 14px; padding: 22px; display: grid; place-items: center; text-align: center; }
.uc-case-kpi .v { font-family: 'JetBrains Mono', monospace; font-size: 36px; font-weight: 700; color: var(--hi); margin-bottom: 4px; }
.uc-case-kpi .l { font-size: 12px; color: var(--text-soft); }
@media (max-width: 880px) { .uc-case { grid-template-columns: 1fr; } }

/* ---- Testimonial ---- */
.uc-testimonial { max-width: 760px; margin: 0 auto; text-align: center; padding: 0 16px; }
.uc-testimonial q { display: block; font-size: 22px; line-height: 1.4; color: var(--text); font-style: italic; margin-bottom: 18px; }
.uc-testimonial q::before { content: "“"; color: var(--hi); }
.uc-testimonial q::after { content: "”"; color: var(--hi); }
.uc-testimonial .who { font-size: 14px; color: var(--text-soft); }
.uc-testimonial .who b { color: var(--text); }

/* ---- FAQ ---- */
.uc-faq { display: grid; gap: 8px; max-width: 880px; margin: 0 auto; }
.uc-faq details { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 14px; padding: 16px 22px; }
.uc-faq details[open] { border-color: rgba(6,182,212,0.3); }
.uc-faq summary { cursor: pointer; font-weight: 700; font-size: 15px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.uc-faq summary::-webkit-details-marker { display: none; }
.uc-faq summary::after { content: "+"; font-size: 22px; color: var(--text-muted); transition: transform 0.2s; }
.uc-faq details[open] summary::after { transform: rotate(45deg); }
.uc-faq p { color: var(--text-soft); font-size: 14px; margin-top: 10px; }

/* ---- Closing wedge ---- */
.uc-closing { text-align: center; max-width: 760px; margin: 0 auto; }
.uc-closing h2 { font-size: clamp(28px, 3.4vw, 42px); margin-bottom: 14px; }
.uc-closing p { color: var(--text-soft); margin-bottom: 24px; }
.uc-closing-ctas { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ---- Hub grid (retail-cv page) — each card is a visual gateway to a spoke ---- */
.uc-hub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.uc-hub-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
  display: flex; flex-direction: column;
  position: relative;
}
.uc-hub-card:hover {
  border-color: rgba(6,182,212,0.45);
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(6,182,212,0.18), 0 0 0 1px rgba(6,182,212,0.25) inset;
}
.uc-hub-card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(99,102,241,0.12));
  overflow: hidden;
}
.uc-hub-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.uc-hub-card:hover .uc-hub-card-img img { transform: scale(1.04); }
.uc-hub-card-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,20,34,0) 55%, rgba(15,20,34,0.92) 100%);
  pointer-events: none;
}
.uc-hub-card-body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 8px; position: relative; }
.uc-hub-card .tag { font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--hi); }
.uc-hub-card h3 { font-size: 20px; font-weight: 800; line-height: 1.2; letter-spacing: -0.01em; }
.uc-hub-card p { font-size: 14px; color: var(--text-muted); line-height: 1.55; }
.uc-hub-card-arrow {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 999px;
  background: var(--tint); color: var(--hi); font-size: 16px; font-weight: 700;
  margin-top: 6px; transition: all 0.2s;
  align-self: flex-start;
}
.uc-hub-card:hover .uc-hub-card-arrow { background: var(--grad); color: #fff; transform: translateX(4px); }

@media (max-width: 1080px) { .uc-hub-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px)  { .uc-hub-grid { grid-template-columns: 1fr; } }

/* ---- Footer ---- */
footer.site-footer { border-top: 1px solid var(--line); padding: 48px 0 32px; margin-top: 80px; color: var(--text-muted); font-size: 13px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; margin-bottom: 32px; }
.foot-col h4 { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text); margin-bottom: 10px; }
.foot-col a { display: block; color: var(--text-muted); text-decoration: none; padding: 4px 0; transition: color 0.15s; }
.foot-col a:hover { color: var(--text); }
.foot-bot { display: flex; justify-content: space-between; align-items: center; padding-top: 18px; border-top: 1px solid var(--line); flex-wrap: wrap; gap: 12px; }
@media (max-width: 720px) { .foot-grid { grid-template-columns: 1fr 1fr; } }