/* ===================================================================
   FULCRUM SYSTEMS — PRODUCT DETAIL PAGE
   Shared CSS for /products/*.html
=================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-0: #07090d;
  --bg-1: #0c1015;
  --bg-2: #12171e;
  --ink-1: #e8ece8;
  --ink-2: #9aa0a6;
  --ink-3: #5e646c;
  --line: rgba(255,255,255,0.07);
  --accent: #c6ff4a;
  --accent-dim: rgba(198,255,74,0.18);
  --warn: #ff9b4a;
  --success: #6bd47a;
  --f-display: 'Space Grotesk', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', monospace;
  --f-serif: 'Instrument Serif', serif;
  --radius: 14px;
}

body[data-variant="graphite"] {
  --bg-0: #1a1814;
  --bg-1: #221f1a;
  --bg-2: #2b2723;
  --ink-1: #ede8e0;
  --ink-2: #b0a89d;
  --ink-3: #7a7368;
  --line: rgba(255,220,180,0.08);
  --accent: #ffb855;
  --accent-dim: rgba(255,184,85,0.18);
  --f-display: 'Instrument Serif', serif;
  --f-body: 'Inter', system-ui, sans-serif;
}

html, body {
  background: var(--bg-0);
  color: var(--ink-1);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body { position: relative; min-height: 100vh; overflow-x: hidden; }
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, color-mix(in oklch, var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 30%, color-mix(in oklch, var(--accent) 6%, transparent), transparent 55%),
    radial-gradient(ellipse 70% 45% at 70% 85%, color-mix(in oklch, var(--accent) 8%, transparent), transparent 60%);
  opacity: 0.9;
}
body::after {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black, transparent 80%);
}
body > * { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.mono { font-family: var(--f-mono); }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklch, var(--bg-0) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: 1320px; margin: 0 auto; padding: 16px 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--f-display); font-weight: 600;
  letter-spacing: -0.02em; font-size: 1.1rem;
}
.nav__brand img { width: 30px; height: 30px; border-radius: 50%; }
.nav__links {
  display: flex; gap: 32px;
  font-size: 0.9rem; color: var(--ink-2);
}
.nav__links a:hover { color: var(--ink-1); }
.nav__cta {
  padding: 9px 20px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-family: var(--f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  transition: all 0.2s;
}
.nav__cta:hover { background: var(--accent); color: var(--bg-0); }

/* ---------- WRAP ---------- */
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 40px; }

/* ---------- BREADCRUMB ---------- */
.crumb {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 0.78rem;
  color: var(--ink-3);
  margin: 48px 0 24px;
}
.crumb a { transition: color 0.2s; }
.crumb a:hover { color: var(--accent); }
.crumb__sep { opacity: 0.5; }

/* ---------- PRODUCT HERO ---------- */
.phero {
  padding: 40px 0 80px;
}
.phero__head {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 28px;
  font-family: var(--f-mono); font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.08em;
}
.phero__eyebrow { color: var(--accent); }
.phero__status {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
}
.phero__status .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success); box-shadow: 0 0 8px var(--success);
}
.phero__status--dev .dot { background: var(--warn); box-shadow: 0 0 8px var(--warn); }

.phero__title {
  font-family: var(--f-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin-bottom: 24px;
}
.phero__title em { font-style: italic; color: var(--accent); }
body[data-variant="graphite"] .phero__title em { font-family: var(--f-serif); }

.phero__lede {
  font-size: 1.2rem; line-height: 1.6;
  color: var(--ink-2);
  max-width: 680px;
}

.phero__meta {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.pm__k { font-family: var(--f-mono); font-size: 0.72rem; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px; }
.pm__v { font-size: 0.98rem; color: var(--ink-1); }

/* ---------- SECTION ---------- */
.section { padding: 100px 0; }
.section--tight { padding: 60px 0; }
.section-head {
  max-width: 900px;
  margin-bottom: 56px;
}
.section-head .eyebrow {
  display: inline-block;
  font-family: var(--f-mono); font-size: 0.78rem;
  color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.section-head p {
  margin-top: 16px;
  font-size: 1.05rem;
  color: var(--ink-2);
  max-width: 640px;
}

/* ---------- FEATURE GRID ---------- */
.feats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.feat {
  padding: 32px 28px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.feat:hover { border-color: var(--accent); transform: translateY(-2px); }
.feat__ico {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--accent);
  font-size: 1.15rem;
  margin-bottom: 20px;
}
.feat h3 { font-size: 1.2rem; font-weight: 500; margin-bottom: 10px; letter-spacing: -0.01em; }
.feat p { color: var(--ink-2); font-size: 0.95rem; line-height: 1.6; }

/* ---------- GALLERY ---------- */
.pgallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pgallery__hero { grid-column: 1 / -1; }
.pgal {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-1);
}
.pgal img { width: 100%; display: block; transition: transform 0.5s; }
.pgal:hover img { transform: scale(1.02); }
.pgal__cap {
  position: absolute; bottom: 14px; left: 14px;
  display: flex; align-items: center; gap: 10px;
  padding: 6px 12px;
  background: rgba(8,10,14,0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
}
.pgal__cap .mono { color: var(--accent); font-size: 0.72rem; }

/* ---------- SPLIT ---------- */
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.split--reverse { direction: rtl; }
.split--reverse > * { direction: ltr; }
.split__text h3 {
  font-family: var(--f-display);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.15;
}
.split__text p {
  color: var(--ink-2);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 14px;
}
.split__text strong { color: var(--ink-1); font-weight: 500; }
.split__visual {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-1);
}

/* ---------- USE CASES ---------- */
.uc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.uc {
  padding: 28px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.uc__n { font-family: var(--f-mono); font-size: 0.75rem; color: var(--ink-3); margin-bottom: 14px; }
.uc h4 { font-size: 1.05rem; font-weight: 500; margin-bottom: 8px; }
.uc p { font-size: 0.9rem; color: var(--ink-2); line-height: 1.55; }

/* ---------- CTA BLOCK ---------- */
.cta {
  margin: 60px 0 120px;
  padding: 64px 56px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid; grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 80% at 100% 50%, var(--accent-dim), transparent 70%);
  pointer-events: none;
}
.cta__text { position: relative; }
.cta__text h2 {
  font-family: var(--f-display);
  font-size: 2rem; font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.cta__text p { color: var(--ink-2); font-size: 1rem; }
.cta__form { position: relative; display: grid; gap: 12px; }
.cta__form input,
.cta__form textarea {
  padding: 14px 16px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink-1);
  font-family: var(--f-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.cta__form input:focus,
.cta__form textarea:focus { border-color: var(--accent); }
.cta__form textarea { resize: vertical; min-height: 90px; }
.cta__form button {
  padding: 14px 24px;
  background: var(--accent);
  color: var(--bg-0);
  border: none;
  border-radius: 10px;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.15s;
  font-weight: 600;
}
.cta__form button:hover { transform: translateY(-1px); }

/* ---------- SMALL FOOTER ---------- */
.sfoot {
  padding: 40px 0;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--f-mono); font-size: 0.78rem;
  color: var(--ink-3);
}
.sfoot a { color: var(--ink-2); transition: color 0.2s; }
.sfoot a:hover { color: var(--accent); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .wrap { padding: 0 20px; }
  .phero__meta { grid-template-columns: repeat(2, 1fr); }
  .feats { grid-template-columns: 1fr; }
  .pgallery { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split--reverse { direction: ltr; }
  .uc-grid { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; padding: 40px 28px; }
  .nav__links { display: none; }
}