/* ==========================================================================
   PluraSEC — Design Tokens
   ========================================================================== */
:root {
  /* Brand (from logo) */
  --navy:        #1C5A9A;
  --navy-deep:   #123A66;
  --cyan:        #4DAFCB;
  --cyan-bright: #6FC3DD;
  --amber:       #E8A33D;

  /* Dark surfaces */
  --ink:         #0B1B32;
  --ink-2:       #0E2340;
  --panel:       #14304F;
  --panel-2:     #1B3C5F;
  --line-dark:   rgba(255, 255, 255, 0.09);
  --fog:         #C4D1E2;
  --fog-dim:     #8A9CB8;

  /* Light surfaces */
  --paper:       #F5F7FB;
  --paper-2:     #FFFFFF;
  --paper-line:  rgba(18, 33, 58, 0.10);
  --ink-text:    #142138;
  --ink-dim:     #4C5C76;

  /* Type */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

  /* Layout */
  --max: 1180px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 14px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; line-height: 1.12; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { max-width: var(--max); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--cyan); color: var(--ink);
  padding: 10px 16px; z-index: 200; border-radius: 0 0 8px 0; font-family: var(--font-mono); font-size: 13px;
}
.skip-link:focus { left: 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 20px; height: 1px;
  background: var(--cyan);
  display: inline-block;
}
.on-light .eyebrow { color: var(--navy); }
.on-light .eyebrow::before { background: var(--navy); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--cyan); color: var(--ink); }
.btn-primary:hover { background: var(--cyan-bright); }
.btn-ghost { border-color: var(--line-dark); color: var(--fog); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan-bright); }
.on-light .btn-ghost { border-color: var(--paper-line); color: var(--ink-text); }
.on-light .btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
.btn-primary-dark { background: var(--navy); color: #fff; }
.btn-primary-dark:hover { background: var(--navy-deep); }

/* ==========================================================================
   Nav
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11, 27, 50, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; padding-bottom: 16px;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 34px; width: auto; }
.nav-links {
  display: flex; align-items: center; gap: 36px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;
}
.nav-links a { color: var(--fog); position: relative; padding: 6px 0; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--cyan-bright); }
.nav-links a[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px; background: var(--cyan);
}
.nav-cta { display: flex; align-items: center; gap: 24px; }
.nav-toggle {
  display: none; background: none; border: none; color: var(--fog); padding: 6px;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 860px) {
  .nav-links {
    position: fixed; top: 68px; left: 0; right: 0; height: calc(100vh - 68px);
    background: var(--ink-2);
    flex-direction: column; align-items: flex-start; gap: 0;
    padding: 12px var(--pad) 28px; border-top: 1px solid var(--line-dark);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    overflow-y: auto;
  }
  .nav-links.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-links a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--line-dark); }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  background: radial-gradient(120% 140% at 82% -10%, #16385E 0%, var(--ink-2) 46%, var(--ink) 100%);
  color: #fff;
  padding-top: clamp(56px, 9vw, 100px);
  padding-bottom: clamp(56px, 9vw, 96px);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 6vw, 64px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  margin-top: 18px;
  color: #fff;
}
.hero h1 em { color: var(--cyan-bright); font-style: normal; }
.hero-sub {
  margin-top: 20px; font-size: 1.09rem; color: var(--fog); max-width: 46ch;
}
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 40px; display: flex; gap: 28px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--fog-dim); letter-spacing: 0.04em;
}
.hero-meta span { color: var(--cyan-bright); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-diagram { order: -1; max-width: 380px; margin: 0 auto; }
}

/* ---- Signature diagram ---- */
.hero-diagram { width: 100%; }
.perimeter-core { fill: var(--panel); stroke: var(--cyan); stroke-width: 1.4; }
.perimeter-ring { fill: none; stroke: var(--line-dark); stroke-width: 1; }
.perimeter-sweep {
  transform-origin: 220px 220px;
  animation: sweep 7s linear infinite;
}
.perimeter-node circle { fill: var(--ink-2); stroke: var(--cyan-bright); stroke-width: 1.6; }
.perimeter-node text {
  font-family: var(--font-mono); font-size: 10.5px; fill: var(--fog); letter-spacing: 0.03em;
}
.perimeter-node.active circle { fill: var(--cyan); stroke: var(--cyan-bright); }
.perimeter-node.active text { fill: #fff; }
.perimeter-link { stroke: var(--cyan); stroke-width: 1; stroke-dasharray: 3 5; opacity: 0.55; animation: dash 3.5s linear infinite; }
.perimeter-pulse { fill: none; stroke: var(--cyan); stroke-width: 1.2; opacity: 0; animation: pulse 3.2s ease-out infinite; }
.perimeter-label { font-family: var(--font-mono); font-size: 10px; fill: var(--fog-dim); letter-spacing: 0.08em; }

@keyframes sweep { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes dash { to { stroke-dashoffset: -32; } }
@keyframes pulse {
  0% { opacity: 0.65; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.55); }
}

/* ==========================================================================
   Sections (generic)
   ========================================================================== */
section { padding: clamp(56px, 8vw, 108px) 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-top: 16px; }
.section-head p { margin-top: 16px; color: var(--ink-dim); font-size: 1.05rem; }
.on-dark .section-head p { color: var(--fog); }
.section-dark { background: var(--ink-2); color: #fff; }
.section-dark .section-head h2 { color: #fff; }

/* Pillars / service cards */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-4, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper-2);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--navy); transform: translateY(-3px); }
.card .tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: var(--navy);
  text-transform: uppercase;
}
.card h3 { font-size: 1.14rem; margin-top: 14px; color: var(--ink-text); }
.card p { margin-top: 10px; color: var(--ink-dim); font-size: 0.96rem; }
.card a.card-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; font-weight: 600; color: var(--navy); }
.card a.card-link:hover { color: var(--cyan); }

.card-dark {
  background: var(--panel);
  border: 1px solid var(--line-dark);
}
.card-dark:hover { border-color: var(--cyan); }
.card-dark .tag { color: var(--cyan-bright); }
.card-dark h3 { color: #fff; }
.card-dark p { color: var(--fog); }

/* Process steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 6px; }
.step .num {
  font-family: var(--font-mono); font-size: 13px; color: var(--cyan);
  border: 1px solid var(--line-dark); border-radius: 999px;
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.on-light .step .num { border-color: var(--paper-line); color: var(--navy); }
.step h3, .step h4 { font-size: 1.03rem; color: inherit; }
.step p { margin-top: 8px; font-size: 0.93rem; color: var(--ink-dim); }
.on-dark .step p { color: var(--fog); }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--navy-deep), var(--navy));
  color: #fff; border-radius: 20px; padding: clamp(36px, 6vw, 64px);
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2.05rem); max-width: 30ch; }
.cta-band p { margin-top: 10px; color: rgba(255,255,255,0.82); max-width: 42ch; }

/* Footer */
.site-footer { background: var(--ink); color: var(--fog-dim); padding: 56px 0 32px; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; padding-bottom: 40px; border-bottom: 1px solid var(--line-dark); }
.footer-brand img { height: 28px; width: auto; margin-bottom: 14px; }
.footer-brand p { max-width: 34ch; font-size: 0.9rem; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h5 { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fog); margin-bottom: 14px; }
.footer-col a, .footer-col p { display: block; font-size: 0.92rem; margin-bottom: 9px; color: var(--fog-dim); }
.footer-col a:hover { color: var(--cyan-bright); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 24px; font-size: 0.82rem; }

/* Page hero (inner pages) */
.page-hero { background: var(--ink-2); color: #fff; padding: clamp(64px, 9vw, 96px) 0 clamp(48px,7vw,72px); }
.page-hero h1 { font-size: clamp(2rem, 4.4vw, 3rem); margin-top: 16px; max-width: 20ch; }
.page-hero p { margin-top: 18px; color: var(--fog); max-width: 56ch; font-size: 1.05rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* Utility */
.mt-64 { margin-top: 64px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* Footer legal link */
.footer-bottom a { color: var(--fog-dim); }
.footer-bottom a:hover { color: var(--cyan-bright); }

/* Footer column titles (were h5) */
.footer-col .footer-title { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fog); margin: 0 0 14px; }