@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── Design Tokens — PrivOps Brand Colors ───────────────── */
:root {
  /* Core brand */
  --brand-blue:    #002D87;
  --brand-green:   #00692D;

  /* Dark backgrounds derived from brand blue */
  --navy:          #020B1E;
  --navy-mid:      #08152E;
  --navy-light:    #0D1E3F;
  --border:        #162847;

  /* Accent greens */
  --green:         #00A845;   /* brightened for dark bg readability */
  --green-dim:     #00692D;   /* exact logo green for borders */
  --green-glow:    rgba(0,168,69,0.10);

  /* Blue accents */
  --blue-accent:   #1A55CC;

  /* Text */
  --text-primary:   #E8EDF5;
  --text-secondary: #8A9BBB;
  --text-muted:     #4A5C78;

  /* Typography */
  --serif: 'DM Serif Display', Georgia, serif;
  --sans:  'DM Sans', system-ui, sans-serif;
  --mono:  'JetBrains Mono', monospace;

  --max-w: 1180px;
  --nav-h: 72px;
}

/* ─── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--navy);
  color: var(--text-primary);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Utility ───────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.section--sm { padding: 64px 0; }
.section--lg { padding: 128px 0; }

.label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
}

.heading-xl {
  font-family: var(--serif);
  font-size: clamp(42px, 5.5vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.heading-lg {
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.heading-md {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.heading-sm {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.text-secondary { color: var(--text-secondary); }
.text-green { color: var(--green); }
.italic { font-style: italic; }

/* ─── Nav ───────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(2,11,30,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav__logo img {
  height: 40px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  letter-spacing: 0.02em;
}
.nav__links a:hover,
.nav__links a.nav-active { color: var(--text-primary); }

.nav__item { position: relative; }
.nav__item:hover .nav__dropdown { opacity: 1; pointer-events: all; transform: translateY(0); }
.nav__dropdown {
  top: 100%;
  padding-top: 8px;
  margin-top: 0;
  position: absolute;
  top: calc(100% + 16px);
  left: -16px;
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  min-width: 230px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s;
}
.nav__dropdown a {
  display: block;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  transition: background 0.15s, color 0.15s;
}
.nav__dropdown a:hover { background: var(--navy-light); color: var(--text-primary); text-decoration: none; }

.nav__cta {
  font-size: 13px !important;
  font-weight: 600 !important;
  color: #fff !important;
  background: var(--brand-blue);
  padding: 9px 22px;
  border-radius: 6px;
  transition: background 0.2s !important;
  border: 1px solid var(--blue-accent);
}
.nav__cta:hover { background: var(--blue-accent); text-decoration: none !important; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* ─── Hero ──────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 65% 40%, rgba(0,168,69,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(0,45,135,0.12) 0%, transparent 60%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.3;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero__label { margin-bottom: 24px; }
.hero__heading { margin-bottom: 28px; }
.hero__heading em { font-style: italic; color: var(--green); }
.hero__sub {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 520px;
}
.hero__actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
}
.btn--primary {
  background: var(--brand-blue);
  color: #fff;
  border: 1px solid var(--blue-accent);
}
.btn--primary:hover { background: var(--blue-accent); transform: translateY(-1px); text-decoration: none; }
.btn--green {
  background: var(--brand-green);
  color: #fff;
}
.btn--green:hover { background: var(--green); transform: translateY(-1px); text-decoration: none; }
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--ghost:hover { border-color: var(--green); color: var(--green); text-decoration: none; }
.btn--sm { padding: 10px 20px; font-size: 14px; }

.hero__patent {
  margin-top: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: fit-content;
}
.hero__patent-badge {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--brand-green);
  color: #fff;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 500;
  white-space: nowrap;
}
.hero__patent-text { font-size: 13px; color: var(--text-secondary); line-height: 1.4; }
.hero__patent-text a { color: var(--green); font-size: 12px; }

.hero__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stat-card {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-green));
  opacity: 0;
  transition: opacity 0.2s;
}
.stat-card:hover { border-color: var(--green-dim); }
.stat-card:hover::before { opacity: 1; }
.stat-card__num {
  font-family: var(--serif);
  font-size: 42px;
  line-height: 1;
  color: var(--green);
  margin-bottom: 8px;
}
.stat-card__label { font-size: 13px; color: var(--text-secondary); line-height: 1.4; }

/* ─── Divider ────────────────────────────────────────────── */
.divider { height: 1px; background: var(--border); }

/* ─── What We Do ────────────────────────────────────────── */
.what-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.what__sticky { position: sticky; top: calc(var(--nav-h) + 32px); }
.what__intro { font-size: 19px; color: var(--text-secondary); line-height: 1.7; margin-top: 24px; }
.what__note {
  margin-top: 32px;
  padding: 20px;
  border-left: 3px solid var(--brand-green);
  background: var(--green-glow);
  border-radius: 0 8px 8px 0;
}
.what__note p { font-size: 15px; color: var(--text-secondary); font-style: italic; }

.service-list { display: flex; flex-direction: column; gap: 2px; }
.service-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.service-item:hover { border-color: var(--green-dim); }
.service-item__header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}
.service-item__icon {
  width: 40px; height: 40px;
  background: var(--green-glow);
  border: 1px solid var(--green-dim);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.service-item__icon svg { width: 18px; height: 18px; stroke: var(--green); fill: none; stroke-width: 1.5; }
.service-item__title { font-size: 17px; font-weight: 600; color: var(--text-primary); }
.service-item__body { padding: 0 24px 24px 80px; font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

/* ─── Outcomes ──────────────────────────────────────────── */
.outcomes { background: var(--navy-mid); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.outcomes__header { text-align: center; margin-bottom: 64px; }
.outcomes__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.outcome-card {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
}
.outcome-card__num { font-family: var(--serif); font-size: 52px; line-height: 1; color: var(--green); margin-bottom: 12px; }
.outcome-card__desc { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.outcome-card__context { font-family: var(--mono); font-size: 11px; color: var(--text-muted); margin-top: 16px; letter-spacing: 0.05em; }

/* ─── Testimonial ───────────────────────────────────────── */
.testimonial { padding: 80px 0; }
.testimonial__inner { max-width: 760px; margin: 0 auto; text-align: center; }
.testimonial__quote {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.4;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 28px;
}
.testimonial__quote::before { content: '\201C'; color: var(--green); }
.testimonial__quote::after  { content: '\201D'; color: var(--green); }
.testimonial__attr { font-size: 14px; color: var(--text-muted); font-family: var(--mono); letter-spacing: 0.05em; }

/* ─── About ─────────────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 80px; align-items: start; }
.bio-timeline { display: flex; flex-direction: column; gap: 0; margin-top: 40px; }
.bio-item { display: grid; grid-template-columns: 120px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.bio-item:last-child { border-bottom: none; }
.bio-item__years { font-family: var(--mono); font-size: 12px; color: var(--text-muted); padding-top: 4px; line-height: 1.5; }
.bio-item__org { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.bio-item__role { font-size: 13px; color: var(--green); font-family: var(--mono); margin-bottom: 8px; letter-spacing: 0.03em; }
.bio-item__desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.about__sidebar { position: sticky; top: calc(var(--nav-h) + 40px); }
.credential-card { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 12px; padding: 28px; margin-bottom: 20px; }
.credential-card__label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.15em; color: var(--text-muted); text-transform: uppercase; margin-bottom: 12px; }
.credential-card__value { font-family: var(--serif); font-size: 28px; color: var(--green); line-height: 1; margin-bottom: 8px; }
.credential-card__desc { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.credential-card__cited { margin-top: 14px; font-family: var(--mono); font-size: 10px; color: var(--text-muted); letter-spacing: 0.05em; }
.credential-card__cited span { color: var(--text-secondary); margin-left: 6px; }

/* ─── CTA Block ─────────────────────────────────────────── */
.cta-block { background: var(--navy-mid); border-top: 1px solid var(--border); padding: 96px 0; text-align: center; }
.cta-block__sub { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin: 20px auto 40px; line-height: 1.7; }
.cta-block__contact { margin-top: 32px; font-size: 14px; color: var(--text-muted); }
.cta-block__contact a { color: var(--green); }

/* ─── Footer ────────────────────────────────────────────── */
.footer { background: var(--navy); border-top: 1px solid var(--border); padding: 48px 0 40px; }
.footer__inner { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer__logo img { height: 36px; width: auto; margin-bottom: 16px; }
.footer__brand-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; max-width: 280px; }
.footer__patent { margin-top: 20px; font-family: var(--mono); font-size: 10px; color: var(--text-muted); line-height: 1.7; }
.footer__col-title { font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 16px; }
.footer__links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer__links a { font-size: 14px; color: var(--text-secondary); text-decoration: none; transition: color 0.15s; }
.footer__links a:hover { color: var(--text-primary); }
.footer__bottom { max-width: var(--max-w); margin: 40px auto 0; padding: 24px 32px 0; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-muted); }

/* ─── Page Hero ─────────────────────────────────────────── */
.page-hero { padding: calc(var(--nav-h) + 80px) 0 80px; position: relative; overflow: hidden; }
.page-hero__bg { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 70% at 70% 50%, rgba(0,168,69,0.05) 0%, transparent 70%); }
.page-hero__label { margin-bottom: 20px; }
.page-hero__heading { margin-bottom: 24px; max-width: 700px; }
.page-hero__sub { font-size: 19px; color: var(--text-secondary); max-width: 620px; line-height: 1.7; }

/* ─── Solutions ─────────────────────────────────────────── */
.solution-card { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 14px; padding: 36px 32px; transition: border-color 0.2s, transform 0.2s; position: relative; overflow: hidden; }
.solution-card::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--brand-blue), var(--brand-green)); opacity: 0; transition: opacity 0.2s; }
.solution-card:hover { border-color: var(--green-dim); transform: translateY(-2px); }
.solution-card:hover::after { opacity: 1; }
.solution-card__icon { width: 48px; height: 48px; border-radius: 10px; background: var(--green-glow); border: 1px solid var(--green-dim); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.solution-card__icon svg { width: 22px; height: 22px; stroke: var(--green); fill: none; stroke-width: 1.5; }

/* ─── Tech panel ────────────────────────────────────────── */
.tech-panel { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 14px; padding: 48px; margin-top: 64px; }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.tech-item__name { font-family: var(--mono); font-size: 12px; color: var(--green); margin-bottom: 6px; letter-spacing: 0.05em; }
.tech-item__desc { font-size: 13px; color: var(--text-muted); }

/* ─── Blog ──────────────────────────────────────────────── */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 64px; }
.blog-card { background: var(--navy-mid); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: border-color 0.2s; }
.blog-card:hover { border-color: var(--green-dim); }
.blog-card__top { padding: 28px; border-bottom: 1px solid var(--border); min-height: 200px; }
.blog-card__tag { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; color: var(--green); text-transform: uppercase; margin-bottom: 14px; }
.blog-card__title { font-family: var(--serif); font-size: 20px; line-height: 1.3; color: var(--text-primary); margin-bottom: 12px; }
.blog-card__excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.blog-card__bottom { padding: 18px 28px; display: flex; align-items: center; justify-content: space-between; }
.blog-card__date { font-size: 12px; color: var(--text-muted); font-family: var(--mono); }
.blog-card__read { font-size: 13px; color: var(--green); font-weight: 500; }

/* Blog post page */
.post-hero { padding: calc(var(--nav-h) + 64px) 0 48px; border-bottom: 1px solid var(--border); }
.post-body { max-width: 720px; margin: 64px auto; padding: 0 32px; }
.post-body h2 { font-family: var(--serif); font-size: 32px; margin: 48px 0 20px; color: var(--text-primary); }
.post-body h3 { font-family: var(--sans); font-size: 20px; font-weight: 600; margin: 36px 0 16px; color: var(--text-primary); }
.post-body p { font-size: 18px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px; }
.post-body blockquote { border-left: 3px solid var(--brand-green); padding: 16px 24px; margin: 32px 0; background: var(--green-glow); border-radius: 0 8px 8px 0; }
.post-body blockquote p { font-style: italic; margin-bottom: 0; font-size: 17px; }
.post-body ul, .post-body ol { padding-left: 24px; margin-bottom: 24px; color: var(--text-secondary); font-size: 17px; line-height: 1.8; }
.post-body li { margin-bottom: 8px; }
.post-body a { color: var(--green); }
.post-body hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }

/* ─── Contact ───────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; margin-top: 64px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field label { font-size: 13px; font-weight: 500; color: var(--text-secondary); letter-spacing: 0.03em; }
.form-field input, .form-field textarea, .form-field select {
  background: var(--navy-mid); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 16px; color: var(--text-primary); font-family: var(--sans); font-size: 15px;
  transition: border-color 0.2s; outline: none; width: 100%;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--green); }
.form-field textarea { min-height: 140px; resize: vertical; }
.form-field select { appearance: none; cursor: pointer; }
.contact-info { display: flex; flex-direction: column; gap: 28px; }
.contact-info-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-info-item__icon { width: 40px; height: 40px; border-radius: 8px; background: var(--green-glow); border: 1px solid var(--green-dim); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info-item__icon svg { width: 18px; height: 18px; stroke: var(--green); fill: none; stroke-width: 1.5; }
.contact-info-item__label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; font-family: var(--mono); letter-spacing: 0.05em; }
.contact-info-item__value { font-size: 15px; color: var(--text-primary); }

/* ─── Animations ────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up   { animation: fadeUp 0.7s ease both; }
.fade-up-2 { animation: fadeUp 0.7s 0.15s ease both; }
.fade-up-3 { animation: fadeUp 0.7s 0.3s ease both; }
.fade-up-4 { animation: fadeUp 0.7s 0.45s ease both; }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .what-grid { grid-template-columns: 1fr; gap: 48px; }
  .what__sticky { position: static; }
  .about-grid { grid-template-columns: 1fr; }
  .about__sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .outcomes__grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__links.open { display: flex; flex-direction: column; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0; background: var(--navy); padding: 32px; gap: 24px; z-index: 99; }
  .nav__toggle { display: flex; }
  .outcomes__grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .about__sidebar { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
  .nav__inner { padding: 0 20px; }
}