/* ============================================================
   OPERATOR FORGE — opforge.co landing
   Tokens from Operator Forge Design System v1 (May 2026)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@400;700;900&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Brand primaries */
  --color-navy:          #0D1F3C;
  --color-navy-dark:     #091628;
  --color-navy-mid:      #162B4D;
  --color-navy-light:    #1E3A66;

  /* Amber / Gold accent */
  --color-amber:         #C8922A;
  --color-amber-hover:   #E8A83A;
  --color-amber-pale:    #FBF0D9;

  /* Neutrals — warm-tinted */
  --color-ivory:         #F5F0E8;
  --color-ivory-mid:     #EDE8DC;
  --color-ivory-dark:    #D4CFC4;
  --color-steel:         #4A5568;
  --color-steel-light:   #718096;
  --color-charcoal:      #1A2332;
  --color-white:         #FFFFFF;

  /* Type */
  --font-display:    'Roboto Slab', Georgia, 'Times New Roman', serif;
  --font-body:       'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:       'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  /* Elevation + transition */
  --shadow-1: 0 1px 3px rgba(13,31,60,0.12), 0 1px 2px rgba(13,31,60,0.08);
  --shadow-2: 0 4px 12px rgba(13,31,60,0.15), 0 2px 4px rgba(13,31,60,0.10);
  --transition-fast:    150ms ease-out;
  --transition-default: 250ms ease-in-out;

  --max-width: 1100px;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-navy);
  background-color: var(--color-ivory);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-amber); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-amber-hover); }

:focus-visible {
  outline: 2px solid var(--color-amber);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ============================================================
   TOP NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 31, 60, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  height: 40px;
}
.nav-logo svg {
  height: 40px;
  width: auto;
  display: block;
}
.nav-contact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.01em;
  padding: 8px 14px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: all var(--transition-fast);
}
.nav-contact:hover {
  background: var(--color-amber);
  color: var(--color-navy);
  border-color: var(--color-amber);
}
.nav-contact svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(200, 146, 42, 0.10), transparent 55%),
    linear-gradient(180deg, var(--color-navy) 0%, var(--color-navy-mid) 100%);
  color: var(--color-white);
  padding: var(--space-24) 0 var(--space-20);
  overflow: hidden;
}
.hero::before {
  /* subtle grain texture, per brand guide (3-5% noise) */
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.hero-content { position: relative; z-index: 1; max-width: 880px; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-amber);
  margin-bottom: var(--space-6);
  padding: 4px 10px;
  border: 1px solid rgba(200, 146, 42, 0.35);
  border-radius: 24px;
  background: rgba(200, 146, 42, 0.08);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.875rem, 5.5vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.hero h1 .accent {
  color: var(--color-amber);
}
.hero-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin-bottom: var(--space-10);
}

.cta-row {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  padding: 12px 22px;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: all var(--transition-fast);
}
.btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-amber);
  color: var(--color-navy);
  box-shadow: var(--shadow-1);
}
.btn-primary:hover { background: var(--color-amber-hover); color: var(--color-navy); box-shadow: var(--shadow-2); }

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.28);
}
.btn-ghost:hover { border-color: var(--color-white); color: var(--color-white); background: rgba(255, 255, 255, 0.04); }

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: var(--space-20) 0;
}
.section--alt {
  background: var(--color-ivory-mid);
  border-top: 1px solid var(--color-ivory-dark);
  border-bottom: 1px solid var(--color-ivory-dark);
}

.section-label {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-steel);
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--color-navy);
  margin-bottom: var(--space-12);
  max-width: 720px;
}

/* What We Do — 3 column grid */
.do-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.do-card {
  background: var(--color-white);
  border: 1px solid rgba(74, 85, 104, 0.15);
  border-radius: 4px;
  padding: var(--space-8);
  box-shadow: var(--shadow-1);
  transition: transform var(--transition-default), box-shadow var(--transition-default);
}
.do-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.do-card-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-amber);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
  display: block;
}
.do-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.3;
  color: var(--color-navy);
  margin-bottom: var(--space-3);
}
.do-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-steel);
}

/* Verticals — tag pills */
.vertical-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.vertical-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-ivory-dark);
  border-radius: 24px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-navy);
  transition: all var(--transition-fast);
}
.vertical-pill::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-amber);
  border-radius: 50%;
  flex-shrink: 0;
}
.vertical-pill:hover {
  border-color: var(--color-amber);
  background: var(--color-amber-pale);
}

.vertical-note {
  margin-top: var(--space-8);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-steel);
  max-width: 640px;
  line-height: 1.6;
}

/* Contact band */
.contact-band {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}
.contact-band::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.contact-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-6);
}
.contact-band .section-label { color: var(--color-amber); }
.contact-band h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  line-height: 1.2;
  color: var(--color-white);
  max-width: 640px;
}
.contact-band p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 560px;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.65);
  padding: var(--space-10) 0;
  font-size: 0.85rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.footer-left { display: flex; align-items: center; gap: var(--space-3); }
.footer-mark { width: 24px; height: 24px; display: block; }
.footer-copy { font-family: var(--font-body); }
.footer-right a {
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.footer-right a:hover { color: var(--color-amber); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .hero { padding: var(--space-16) 0; }
  .section { padding: var(--space-16) 0; }
  .do-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .nav-logo svg { height: 32px; }
}

@media (max-width: 520px) {
  .container { padding: 0 var(--space-4); }
  .nav-logo svg { height: 28px; }
  .nav-contact { padding: 6px 10px; font-size: 13px; }
  .hero { padding: var(--space-12) 0; }
  .hero h1 { font-size: clamp(1.5rem, 7.5vw, 2.25rem); }
  .hero-lead { font-size: 0.95rem; margin-bottom: var(--space-8); }
  .cta-row { width: 100%; }
  .cta-row .btn { flex: 1; justify-content: center; }
  .section-title { font-size: 1.5rem; margin-bottom: var(--space-8); }
  .do-card { padding: var(--space-6); }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}