/* FnBPro brochure — minimal dark theme, no JS, no framework.
   Targets: <40 KB total page weight, ≥95 Lighthouse on a 3G profile. */

:root {
  --bg:          #0a0a0a;
  --bg-card:    #131418;
  --border:     #232428;
  --text:       #f0f1f3;
  --text-dim:   #a5a8b0;
  --text-mute:  #6a6e78;
  --accent:     #00d4ff;
  --accent-2:   #7c3aed;
  --max:        1100px;
  --pad:        clamp(20px, 5vw, 56px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--text); }

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(34px, 5vw, 56px); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 18px; font-weight: 600; }

p { margin: 0 0 14px; }

/* ----- Header ----- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px var(--pad);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(8px);
  z-index: 10;
}
.brand {
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.brand .accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.site-nav { display: flex; gap: 22px; align-items: center; font-size: 14px; }
.site-nav a { color: var(--text-dim); }
.site-nav a:hover { color: var(--text); }
.site-nav .cta {
  padding: 8px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
}
.site-nav .cta:hover { background: var(--accent); color: var(--bg); }

@media (max-width: 720px) {
  .site-nav a:not(.cta) { display: none; }
}

/* ----- Hero ----- */
.hero {
  padding: clamp(56px, 10vh, 120px) var(--pad);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: var(--max); margin: 0 auto; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-mute);
  margin-bottom: 18px;
}
.lede {
  max-width: 720px;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--text-dim);
  margin-top: 18px;
}
.hero-actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  transition: transform 0.06s ease, background 0.12s ease, color 0.12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0a0a0a;
}
.btn-primary:hover { color: #0a0a0a; opacity: 0.9; }
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ----- Sections ----- */
section { padding: clamp(56px, 8vh, 96px) var(--pad); border-bottom: 1px solid var(--border); }
section h2 { max-width: var(--max); margin-left: auto; margin-right: auto; margin-bottom: 28px; }

.services .grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}
.card h3 { margin-bottom: 8px; }
.card p { color: var(--text-dim); font-size: 14px; }

/* ----- Approach ----- */
.approach-inner { max-width: 880px; margin: 0 auto; }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; display: grid; gap: 18px; }
.steps li {
  counter-increment: step;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 22px 22px 64px;
  position: relative;
  color: var(--text-dim);
  font-size: 15px;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  top: 22px; left: 22px;
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0a0a0a;
  font-weight: 700;
  font-size: 14px;
}
.steps li strong { color: var(--text); display: block; margin-bottom: 4px; }

/* ----- About + Contact ----- */
.about, .contact { text-align: left; }
.about, .contact { max-width: 880px; margin: 0 auto; }
.about p, .contact p { color: var(--text-dim); }
.contact-line { margin-top: 18px; }

/* ----- Footer ----- */
.site-footer {
  padding: 26px var(--pad);
  font-size: 13px;
  color: var(--text-mute);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex; gap: 12px; flex-wrap: wrap;
  align-items: center;
}
.footer-sep { color: var(--border); }
.site-footer a { color: var(--text-dim); }
.site-footer a:hover { color: var(--accent); }