/* ============================================================
   Razors Edge Systems — Main Stylesheet
   Dark technical engineering aesthetic
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-base:       #090b0e;
  --bg-surface:    #0f1318;
  --bg-elevated:   #141a23;
  --bg-card:       #111520;
  --border:        #1c2332;
  --border-light:  #253044;
  --text-primary:  #dde4f0;
  --text-secondary:#6b7a96;
  --text-muted:    #3d4f6b;
  --accent:        #3b82f6;
  --accent-dim:    rgba(59,130,246,0.12);
  --accent-glow:   rgba(59,130,246,0.25);
  --white:         #ffffff;
  --success:       #22c55e;

  --font:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:          'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm:     4px;
  --radius:        8px;
  --radius-lg:     12px;

  --nav-h:         68px;
  --max-w:         1160px;
  --section-gap:   100px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul { list-style: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5 {
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p { color: var(--text-secondary); line-height: 1.75; }

.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

/* ---------- Layout Utilities ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--section-gap) 0;
}

.section--alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-48 { margin-bottom: 48px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.18s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59,130,246,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  padding-left: 0;
}
.btn-ghost:hover { opacity: 0.75; }

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform 0.15s;
}
.btn:hover svg { transform: translateX(3px); }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(9, 11, 14, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(9, 11, 14, 0.96);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
}

.nav__logo-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1;
}

.nav__logo-tag {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s;
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--white);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.25s;
}

/* Mobile nav */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}

.nav__mobile.open { display: flex; }

.nav__mobile a {
  padding: 12px 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: color 0.15s;
}

.nav__mobile a:hover { color: var(--white); }

.nav__mobile .btn {
  margin-top: 16px;
  width: 100%;
  justify-content: center;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Technical grid background */
.hero__bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero__bg-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 24px 100px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-light);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 36px;
  background: rgba(15,19,24,0.6);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent); }
  50% { opacity: 0.5; box-shadow: 0 0 2px var(--accent); }
}

.hero__headline {
  max-width: 780px;
  margin-bottom: 24px;
}

.hero__headline em {
  font-style: normal;
  color: var(--accent);
}

.hero__sub {
  max-width: 580px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 44px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 72px;
}

.hero__stats {
  display: flex;
  gap: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.hero__stat-num {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

/* ---------- Section Headers ---------- */
.section-header {
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 56px;
}

.section-header p {
  margin-top: 16px;
  font-size: 1rem;
}

/* ---------- What We Build / Capability Grid ---------- */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border);
}

.capability-item {
  background: var(--bg-card);
  padding: 32px 28px;
  transition: background 0.2s;
}

.capability-item:hover {
  background: var(--bg-elevated);
}

.capability-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--accent);
}

.capability-icon svg {
  width: 20px;
  height: 20px;
}

.capability-item h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.capability-item p {
  font-size: 0.85rem;
  line-height: 1.65;
}

/* ---------- Service Lanes ---------- */
.lanes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.lane-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.2s;
}

.lane-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.lane-card--featured {
  border-color: rgba(59,130,246,0.3);
}

.lane-card--featured::before {
  content: 'High-leverage';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.25);
  padding: 4px 10px;
  border-radius: 100px;
}

.lane-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.lane-card h3 {
  font-size: 1.3rem;
  margin-bottom: 14px;
  padding-right: 80px;
}

.lane-card--featured h3 { color: var(--white); }

.lane-card > p {
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.lane-deliverables {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}

.lane-deliverable {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.lane-deliverable::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
  flex-shrink: 0;
}

.lane-pricing {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lane-price {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.lane-price strong {
  display: block;
  font-size: 1rem;
  color: var(--white);
  font-weight: 600;
  margin-top: 2px;
}

/* ---------- Image with overlay ---------- */
.img-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}

.img-frame img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
  filter: brightness(0.7) saturate(0.5);
  transition: filter 0.35s;
}

.img-frame:hover img {
  filter: brightness(0.85) saturate(0.65);
}

/* ---------- Example Systems ---------- */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.system-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s;
}

.system-card:hover { border-color: var(--border-light); }

.system-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.system-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.system-card p {
  font-size: 0.84rem;
  line-height: 1.65;
}

.system-stack {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--bg-base);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ---------- Who We Work With ---------- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.client-sector {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.client-card h3 {
  font-size: 1rem;
  margin-bottom: 10px;
}

.client-card p {
  font-size: 0.84rem;
  line-height: 1.65;
}

/* ---------- Why Us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.why-item {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.why-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-family: var(--mono);
  flex-shrink: 0;
  padding-top: 4px;
}

.why-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.why-item p {
  font-size: 0.85rem;
  line-height: 1.65;
}

/* ---------- CTA Section ---------- */
.cta-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

.cta-section .container { position: relative; z-index: 2; }

.cta-section h2 {
  max-width: 600px;
  margin: 0 auto 20px;
}

.cta-section p {
  max-width: 480px;
  margin: 0 auto 40px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.contact-info p {
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 32px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--border);
}

.contact-detail:last-of-type {
  border-bottom: 1px solid var(--border);
}

.contact-detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  width: 80px;
  flex-shrink: 0;
  padding-top: 2px;
}

.contact-detail-val {
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 16px;
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7a96' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-group select option {
  background: var(--bg-surface);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 56px 0 36px;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 36px;
}

.footer__brand-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.footer__brand-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer__brand-desc {
  font-size: 0.84rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer__col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col ul li a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  transition: color 0.15s;
}

.footer__col ul li a:hover { color: var(--white); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer__legal {
  display: flex;
  gap: 24px;
}

.footer__legal a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color 0.15s;
}
.footer__legal a:hover { color: var(--text-secondary); }

/* ---------- Page header (inner pages) ---------- */
.page-header {
  padding: 120px 0 72px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-header .container { position: relative; z-index: 2; }

.page-header h1 { margin-bottom: 16px; }

.page-header p {
  max-width: 560px;
  font-size: 1.05rem;
}

/* ---------- About page ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-intro p {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.principles-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.principle {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.principle-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  padding-top: 3px;
}

.principle h3 { font-size: 1rem; margin-bottom: 8px; }
.principle p { font-size: 0.85rem; line-height: 1.65; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.15s;
}

.breadcrumb a:hover { color: var(--text-secondary); }

.breadcrumb span { color: var(--border-light); }

/* ---------- Divider ---------- */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--section-gap) 0;
}

/* ---------- Highlight box ---------- */
.highlight-box {
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
}

.highlight-box p {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-primary);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root { --section-gap: 80px; }

  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .lanes-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-gap: 64px; }

  .nav__links,
  .nav__actions .btn-outline { display: none; }
  .nav__hamburger { display: flex; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: 1fr; }
  .lanes-grid { grid-template-columns: 1fr; }
  .systems-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .footer__top { grid-template-columns: 1fr; }

  .hero__stats {
    flex-wrap: wrap;
    gap: 28px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .lane-card h3 { padding-right: 0; }
  .lane-card--featured::before { display: none; }

  .cta-actions { flex-direction: column; align-items: center; }

  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero__content { padding-bottom: 60px; }
  .btn { padding: 12px 20px; }
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}

.fade-in-up:nth-child(1) { animation-delay: 0.05s; }
.fade-in-up:nth-child(2) { animation-delay: 0.1s; }
.fade-in-up:nth-child(3) { animation-delay: 0.15s; }
.fade-in-up:nth-child(4) { animation-delay: 0.2s; }

/* Scroll-triggered reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utility: accented underline ---------- */
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }