/* ============================================
   REGENT INTEL — Design Tokens
   Palette: White / Teal — intelligence-led, not generic security
   Display: Fraunces (restrained, sharp serif)
   Body: Inter
   Utility/Label: JetBrains Mono (classification-stripe feel)
   ============================================ */

:root {
  --bg: #FFFFFF;
  --bg-alt: #F4F6F7;
  --navy: #0F1E2D;
  --navy-soft: #1B3247;
  --ink: #0F1E2D;
  --ink-soft: #56677A;
  --teal-deep: #105570;
  --teal: #146E87;
  --teal-bright: #2A91AC;
  --line: #DCE2E6;
  --line-strong: #B6C2CB;
  --on-navy: #FFFFFF;
  --on-navy-soft: #AEC0CC;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', -apple-system, sans-serif;
  --font-mono: 'DM Mono', monospace;

  --max-w: 1180px;
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }

/* ---------- Classification stripe / eyebrow ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-deep);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--teal);
}

/* ---------- Header / Nav ---------- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 14px 0;
}
.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo img {
  width: 60px;
  height: 60px;
  object-fit: contain;
}
.logo .word-regent { color: var(--ink); }
.logo .word-intel { color: var(--teal); }
.logo-stack { display: flex; flex-direction: column; gap: 2px; }
.logo-tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 400;
  white-space: nowrap;
}
.logo .mark {
  width: 9px; height: 9px;
  background: var(--teal);
  display: inline-block;
}
nav.links {
  display: flex;
  gap: 16px;
  font-size: 12.5px;
  font-weight: 500;
  flex-wrap: nowrap;
}
nav.links a {
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
nav.links a:hover { color: var(--teal-deep); }
nav.links a.current { color: var(--ink); }
nav.links a.current::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--teal);
}
.nav-cta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--ink);
  color: #fff;
  padding: 11px 20px;
  border: 1px solid var(--ink);
  transition: background 0.15s, color 0.15s;
}
.nav-cta:hover { background: var(--teal-deep); border-color: var(--teal-deep); }
.menu-toggle { display: none; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}
nav.links.mobile-open {
  display: flex;
  position: absolute;
  top: 76px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  flex-direction: column;
  gap: 0;
  padding: 8px 0;
}
nav.links.mobile-open a {
  padding: 14px 32px;
}

@media (max-width: 1140px) {
  nav.links { display: none; }
  .menu-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  padding: 110px 0 90px;
  background: var(--navy);
  color: var(--on-navy);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: -10%;
  width: 540px; height: 540px;
  background: radial-gradient(circle, rgba(20,110,135,0.30) 0%, transparent 70%);
  pointer-events: none;
}
.hero-scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(42,145,172,0.7), transparent);
  animation: scanDown 8s ease-in-out infinite;
  top: 10%;
  pointer-events: none;
}
@keyframes scanDown {
  0% { top: 8%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 92%; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-scan-line { animation: none; opacity: 0.4; top: 50%; }
}
.hero .eyebrow { color: var(--teal-bright); }
.hero .eyebrow::before { background: var(--teal-bright); }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  max-width: 900px;
  margin-bottom: 28px;
  color: #fff;
}
.hero h1 em,
.service-hero h1 em {
  font-style: italic;
  color: var(--teal-bright);
}
.hero .lede {
  font-size: 18px;
  color: var(--on-navy-soft);
  max-width: 640px;
  margin-bottom: 40px;
  line-height: 1.65;
}
.cta-row { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--teal-deep);
  color: #fff;
  padding: 16px 28px;
  border: 1px solid var(--teal-deep);
  transition: background 0.15s, transform 0.15s;
}
.btn-primary:hover { background: var(--ink); border-color: var(--ink); }
.btn-secondary {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: transparent;
  color: var(--ink);
  padding: 16px 28px;
  border: 1px solid var(--line-strong);
  transition: border-color 0.15s, color 0.15s;
}
.btn-secondary:hover { border-color: var(--teal-deep); color: var(--teal-deep); }
.dflap { display: inline; }
.hero .btn-secondary, .service-hero.on-navy .btn-secondary {
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.hero .btn-secondary:hover, .service-hero.on-navy .btn-secondary:hover {
  border-color: var(--teal-bright);
  color: var(--teal-bright);
}

/* ---------- Stat strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
}
.stat-strip .stat {
  padding: 10px 24px;
  border-right: 1px solid var(--line);
}
.stat-strip .stat:last-child { border-right: none; }
.stat .num {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--teal-deep);
  margin-bottom: 1px;
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Scrolling capability marquee ---------- */
.marquee {
  background: var(--navy);
  overflow: hidden;
  white-space: nowrap;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.marquee-track {
  display: inline-flex;
  animation: marqueeScroll 32s linear infinite;
}
.marquee-track.marquee-slow {
  animation-duration: 60s;
}
.marquee-track span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-navy-soft);
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  gap: 28px;
}
.marquee-track span::after {
  content: '\2022';
  color: var(--teal-bright);
}
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}
@media (max-width: 760px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .stat-strip .stat:nth-child(2) { border-right: none; }
}

/* ---------- Section scaffolding ---------- */
section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}
.section-head .deck {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 16.5px;
  line-height: 1.65;
}

/* ---------- Service grid ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.service-card {
  background: #fff;
  padding: 48px 40px;
  transition: background 0.18s;
}
.service-card:hover { background: var(--bg-alt); }
.service-card .icon {
  width: 40px;
  height: 40px;
  margin-bottom: 18px;
  stroke: var(--teal);
  fill: none;
  stroke-width: 1.5;
}
.service-card .tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 18px;
  display: block;
}
.service-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  margin-bottom: 12px;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}
.service-card p {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.65;
  margin-bottom: 20px;
}
.service-card .learn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.service-card .learn span { transition: transform 0.15s; }
.service-card:hover .learn span { transform: translateX(4px); }

@media (max-width: 880px) {
  .service-grid { grid-template-columns: 1fr; }
}

/* ---------- Confidential banner ---------- */
.confidential-banner {
  background: var(--ink);
  color: #fff;
  padding: 56px 0;
}
.confidential-banner .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.confidential-banner .eyebrow { color: var(--teal-bright); }
.confidential-banner .eyebrow::before { background: var(--teal-bright); }
.confidential-banner h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 26px;
}
.confidential-banner p { color: #B9C9C7; max-width: 420px; font-size: 14.5px; }

/* ---------- About / difference ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-grid p { color: var(--ink-soft); margin-bottom: 18px; line-height: 1.7; }
.about-grid strong { color: var(--ink); font-weight: 600; }

.diff-list { display: flex; flex-direction: column; }
.diff-item {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}
.diff-list .diff-item:last-child { border-bottom: 1px solid var(--line); }
.diff-item .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-deep);
  padding-top: 3px;
}
.diff-item h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  margin-bottom: 8px;
}
.diff-item p { color: var(--ink-soft); font-size: 14.5px; line-height: 1.6; }

@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
}
.contact-info .item {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}
.contact-info .item:last-child { border-bottom: 1px solid var(--line); }
.contact-info .item .k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.contact-info .item .v { font-size: 16px; }
.contact-info .item a:hover { color: var(--teal-deep); }

form.briefing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
form.briefing .full { grid-column: 1 / -1; }
form.briefing label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 8px;
}
form.briefing input,
form.briefing select,
form.briefing textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: #fff;
  padding: 13px 14px;
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--ink);
}
form.briefing input:focus,
form.briefing select:focus,
form.briefing textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(20,145,138,0.12);
}
form.briefing textarea { min-height: 110px; resize: vertical; }
form.briefing .submit-row {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.form-note { font-size: 13px; color: var(--ink-soft); }

@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
  form.briefing { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 22px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 22px;
}
.footer-links {
  display: flex;
  gap: 22px;
  font-size: 13px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.footer-links a:hover { color: var(--teal-deep); }
.footer-bottom {
  font-size: 12px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom .tag {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* ---------- Service detail page ---------- */
.service-hero {
  padding: 100px 0 80px;
  background: var(--navy);
  color: var(--on-navy);
  position: relative;
  overflow: hidden;
}
.service-hero .eyebrow { color: var(--teal-bright); }
.service-hero .eyebrow::before { background: var(--teal-bright); }
.service-hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 4.3vw, 51px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  max-width: 760px;
  margin-bottom: 24px;
  color: #fff;
}
.service-hero .lede {
  font-size: 17.5px;
  color: var(--on-navy-soft);
  max-width: 620px;
  line-height: 1.7;
}
.service-marquee {
  margin-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 4px;
}
.detail-list {
  margin-top: 24px;
  list-style: none;
  padding: 0;
}
.detail-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  color: var(--on-navy-soft);
  font-size: 16px;
  line-height: 1.6;
}
.detail-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--teal-bright);
}
.capability-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 40px;
  margin-bottom: 28px;
}
.capability-list .cap {
  background: #fff;
  padding: 28px 30px;
}
.capability-list .cap .icon {
  width: 36px;
  height: 36px;
  margin-bottom: 10px;
  stroke: var(--teal);
  fill: none;
  stroke-width: 1.5;
  display: block;
}
.capability-list .cap .tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}
.capability-list .cap h4 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--ink);
  display: block;
}
.capability-list .cap p { color: #4A5C6B; font-size: 16px; line-height: 1.6; margin: 0; }
@media (max-width: 760px) {
  .capability-list { grid-template-columns: 1fr; }
}