/* ─────────────────────────────────────────────────────────────────────────────
   Utilities Combined — Dark theme (Phase 16)
   Parent-group positioning. Dark backgrounds + neon yellow accents matching the
   platform's UC brand. Loaded AFTER uc-site.css so it overrides where needed.
   ───────────────────────────────────────────────────────────────────────────── */

:root {
  --uc-bg:        #0a0a0a;
  --uc-bg-2:      #111111;
  --uc-bg-3:      #1a1a1a;
  --uc-panel:     #1e1e1e;
  --uc-border:    #2e2e2e;
  --uc-border-2:  #3a3a3a;
  --uc-text:      #ffffff;
  --uc-text-m:    #b9b9b9;
  --uc-text-l:    #8a8a8a;
  --uc-yellow:    #D4F000;
  --uc-yellow-2:  #E3FF00;
  --uc-ink:       #0a0a0a;

  /* Division colours — used for badges across the projects section */
  --div-electricert: #3b82f6;
  --div-oilcert:     #ef4444;
  --div-renewables:  #10b981;
  --div-compliance:  #a855f7;
}

html, body { background: var(--uc-bg); color: var(--uc-text); }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--uc-yellow); }
a:hover { color: var(--uc-yellow-2); }

/* HEADINGS */
h1, h2, h3, h4, h5 { color: var(--uc-text); font-weight: 800; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); line-height: 1.2; }
h3 { font-size: 1.3rem; }
p { color: var(--uc-text-m); line-height: 1.65; }

/* HEADER */
.site-header { background: rgba(10,10,10,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--uc-border); position: sticky; top: 0; z-index: 100; }
.site-header .nav-wrap { max-width: 1280px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--uc-text); font-weight: 800; font-size: 17px; }
.logo img { height: 38px; width: auto; }
.logo span { display: flex; flex-direction: column; line-height: 1.05; }
.logo small { color: var(--uc-text-l); font-weight: 500; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.primary-nav { display: flex; gap: 6px; margin-left: auto; }
.nav-link { padding: 9px 14px; color: var(--uc-text-m); font-weight: 600; border-radius: 8px; transition: all .15s; font-size: 14px; }
.nav-link:hover { color: var(--uc-yellow); background: var(--uc-bg-3); }
.nav-link.active { color: var(--uc-yellow); background: rgba(212,240,0,0.08); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
.nav-tel { color: var(--uc-text); font-weight: 700; font-size: 14px; }

/* BUTTONS */
.btn, button.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 14px; border: 1.5px solid transparent; cursor: pointer; transition: all .15s ease; text-decoration: none; }
.btn-primary { background: var(--uc-yellow); color: var(--uc-ink); border-color: var(--uc-yellow); }
.btn-primary:hover { background: var(--uc-yellow-2); border-color: var(--uc-yellow-2); transform: translateY(-1px); }
.btn-secondary, .btn-ghost { background: transparent; color: var(--uc-text); border-color: var(--uc-border-2); }
.btn-secondary:hover, .btn-ghost:hover { border-color: var(--uc-yellow); color: var(--uc-yellow); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* HERO */
.hero { padding: 110px 0 80px; background: linear-gradient(180deg, var(--uc-bg) 0%, var(--uc-bg-2) 100%); border-bottom: 1px solid var(--uc-border); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; top: -200px; right: -200px; width: 600px; height: 600px; background: radial-gradient(circle, rgba(212,240,0,0.10) 0%, transparent 70%); pointer-events: none; }
.hero .container { position: relative; }
.hero .eyebrow { color: var(--uc-yellow); font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 18px; }
.hero h1 span { color: var(--uc-yellow); }
.hero .lead { font-size: 1.2rem; max-width: 680px; margin-top: 18px; color: var(--uc-text-m); }
.hero .hero-actions { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }

/* SECTIONS */
section { padding: 72px 0; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.eyebrow { color: var(--uc-yellow); font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow { margin-bottom: 14px; display: inline-block; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--uc-text-m); font-size: 1.05rem; }

/* PROJECT CARDS */
.uc-projects-grid { display: grid; gap: 28px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.uc-project-card { background: var(--uc-panel); border: 1px solid var(--uc-border); border-radius: 16px; overflow: hidden; transition: all .2s ease; display: flex; flex-direction: column; }
.uc-project-card:hover { transform: translateY(-4px); border-color: var(--uc-yellow); box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.uc-project-card a { color: inherit; display: flex; flex-direction: column; flex: 1; }
.uc-project-cover { position: relative; aspect-ratio: 16/10; background: var(--uc-bg-3); overflow: hidden; }
.uc-project-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.uc-project-card:hover .uc-project-cover img { transform: scale(1.06); }
.uc-project-cover .uc-no-image { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; color: var(--uc-text-l); font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; }
.uc-division-badge { position: absolute; top: 14px; left: 14px; padding: 5px 12px; border-radius: 999px; font-size: 11px; font-weight: 800; color: #fff; letter-spacing: 0.5px; text-transform: uppercase; backdrop-filter: blur(8px); background: rgba(0,0,0,0.55); border: 1px solid rgba(255,255,255,0.15); }
.uc-project-body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.uc-project-title { font-size: 1.25rem; font-weight: 800; color: var(--uc-text); margin-bottom: 8px; line-height: 1.25; }
.uc-project-loc { font-size: 12px; color: var(--uc-text-l); font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 12px; }
.uc-project-summary { color: var(--uc-text-m); font-size: 14px; line-height: 1.5; flex: 1; }
.uc-project-cta { margin-top: 18px; color: var(--uc-yellow); font-weight: 700; font-size: 13px; letter-spacing: 0.5px; display: inline-flex; align-items: center; gap: 6px; }

/* PROJECT FILTERS */
.uc-project-filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.uc-chip { padding: 9px 18px; border-radius: 999px; background: var(--uc-panel); border: 1.5px solid var(--uc-border); color: var(--uc-text-m); font-weight: 700; font-size: 13px; cursor: pointer; transition: all .15s; }
.uc-chip:hover { border-color: var(--uc-border-2); color: var(--uc-text); }
.uc-chip.active { background: var(--uc-yellow); color: var(--uc-ink); border-color: var(--uc-yellow); }

/* PROJECT DETAIL */
.uc-detail-hero { padding: 100px 0 0; background: var(--uc-bg-2); border-bottom: 1px solid var(--uc-border); }
.uc-detail-hero .container { max-width: 1080px; }
.uc-detail-meta { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; flex-wrap: wrap; }
.uc-detail-meta .uc-division-badge { position: static; }
.uc-detail-loc { color: var(--uc-text-l); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }
.uc-detail-hero h1 { margin-bottom: 18px; font-size: clamp(2rem, 4.5vw, 3.2rem); }
.uc-detail-summary { font-size: 1.15rem; color: var(--uc-text-m); max-width: 760px; line-height: 1.55; }
.uc-detail-cover { aspect-ratio: 21/9; background: var(--uc-bg-3); overflow: hidden; border-radius: 18px; margin-top: 50px; border: 1px solid var(--uc-border); }
.uc-detail-cover img { width: 100%; height: 100%; object-fit: cover; }

.uc-detail-body { padding: 80px 0; }
.uc-detail-body .container { max-width: 1080px; }
.uc-detail-grid { display: grid; gap: 56px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .uc-detail-grid { grid-template-columns: 220px 1fr; } }

.uc-detail-sidebar { position: sticky; top: 100px; align-self: start; }
.uc-detail-sidebar .label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--uc-text-l); margin-bottom: 4px; }
.uc-detail-sidebar .val { color: var(--uc-text); font-weight: 700; margin-bottom: 18px; }

.uc-section-block { margin-bottom: 56px; }
.uc-section-block h2 { color: var(--uc-yellow); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; font-weight: 800; }
.uc-section-block p, .uc-section-block .uc-prose { font-size: 1.05rem; color: var(--uc-text-m); line-height: 1.75; white-space: pre-wrap; }
.uc-section-block .uc-headline { color: var(--uc-text); font-size: 1.6rem; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }

/* GALLERY */
.uc-gallery { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.uc-gallery img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 10px; border: 1px solid var(--uc-border); cursor: pointer; transition: transform .2s; }
.uc-gallery img:hover { transform: scale(1.02); border-color: var(--uc-yellow); }

/* BEFORE / AFTER */
.uc-ba-grid { display: grid; gap: 24px; grid-template-columns: 1fr; margin-top: 24px; }
@media (min-width: 720px) { .uc-ba-grid { grid-template-columns: 1fr 1fr; } }
.uc-ba-card { background: var(--uc-panel); border: 1px solid var(--uc-border); border-radius: 14px; overflow: hidden; }
.uc-ba-card .uc-ba-label { padding: 14px 18px; font-size: 11px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; color: var(--uc-yellow); border-bottom: 1px solid var(--uc-border); }
.uc-ba-card .uc-ba-images { display: grid; gap: 4px; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); padding: 14px; }
.uc-ba-card img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; }

/* TAGS */
.uc-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.uc-tag { padding: 4px 12px; border-radius: 999px; background: var(--uc-bg-3); border: 1px solid var(--uc-border); font-size: 11px; font-weight: 700; color: var(--uc-text-m); letter-spacing: 0.4px; text-transform: uppercase; }

/* EMPTY STATE */
.uc-empty { text-align: center; padding: 80px 30px; color: var(--uc-text-l); background: var(--uc-panel); border: 1px dashed var(--uc-border); border-radius: 16px; }
.uc-empty h3 { color: var(--uc-text); margin-bottom: 8px; }

/* FOOTER (will be themed in Phase B) */
.site-footer { background: var(--uc-bg-2); border-top: 1px solid var(--uc-border); color: var(--uc-text-m); padding: 64px 0 36px; margin-top: 80px; }
.site-footer h4 { color: var(--uc-text); font-size: 13px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 14px; }
.site-footer a { color: var(--uc-text-m); }
.site-footer a:hover { color: var(--uc-yellow); }
.site-footer .footer-bottom { border-top: 1px solid var(--uc-border); margin-top: 36px; padding-top: 20px; font-size: 12px; color: var(--uc-text-l); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* DIVISION TILES (used on /divisions page in Phase B) */
.uc-div-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.uc-div-card { background: var(--uc-panel); border: 1px solid var(--uc-border); border-radius: 18px; padding: 32px 28px; transition: all .2s; }
.uc-div-card:hover { border-color: var(--uc-yellow); transform: translateY(-3px); }
.uc-div-card .uc-div-name { font-size: 1.5rem; font-weight: 800; color: var(--uc-text); margin-bottom: 10px; }
.uc-div-card .uc-div-name::before { content: ""; display: inline-block; width: 8px; height: 8px; background: currentColor; border-radius: 50%; margin-right: 10px; vertical-align: middle; }
.uc-div-card p { color: var(--uc-text-m); margin-bottom: 18px; line-height: 1.6; }
.uc-div-card ul { list-style: none; margin: 0 0 18px; padding: 0; }
.uc-div-card li { color: var(--uc-text-m); font-size: 14px; padding: 5px 0; border-bottom: 1px solid var(--uc-border); }
.uc-div-card li::before { content: "→ "; color: var(--uc-yellow); font-weight: 800; }
.uc-div-card a.uc-div-link { color: var(--uc-yellow); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; }

/* AUDIENCE CARDS (used on homepage in Phase B) */
.uc-audience-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.uc-audience-card { background: var(--uc-panel); border: 1px solid var(--uc-border); border-radius: 14px; padding: 28px 24px; text-align: center; transition: all .2s; }
.uc-audience-card:hover { border-color: var(--uc-yellow); }
.uc-audience-card .uc-icon { font-size: 36px; margin-bottom: 12px; }
.uc-audience-card h3 { font-size: 1.15rem; color: var(--uc-text); margin-bottom: 8px; }
.uc-audience-card p { color: var(--uc-text-m); font-size: 14px; line-height: 1.5; }

/* RESPONSIVE NAV */
@media (max-width: 900px) {
  .primary-nav { display: none; }
  .nav-cta .nav-tel { display: none; }
}