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

:root {
  --ink: #0a0a0a;
  --paper: #f5f2ed;
  --stone: #d4cfc8;
  --slate: #8a8580;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-glow: rgba(37, 99, 235, 0.08);
  --red: #dc2626;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: white; }

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(245, 242, 237, 0.85);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid rgba(10, 10, 10, 0.06);
  transition: all 0.4s var(--ease);
}

.nav-logo {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}

.nav-logo .mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.nav-logo .mark::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid white;
  border-radius: 2px;
  transform: rotate(45deg);
  top: 10px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--slate);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--ink); }

.nav-cta {
  background: var(--ink) !important;
  color: var(--paper) !important;
  padding: 0.55rem 1.4rem;
  border-radius: 6px;
  font-size: 0.82rem !important;
  font-weight: 500 !important;
  transition: all 0.3s var(--ease) !important;
}

.nav-cta:hover { background: var(--accent) !important; }

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 3rem 4rem;
  position: relative;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10,10,10,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,10,10,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.2s forwards;
}

.hero-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3.2rem, 7vw, 6.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 900px;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.4s forwards;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  margin-top: 2.5rem;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--slate);
  max-width: 520px;
  font-weight: 300;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.6s forwards;
}

.hero-actions {
  margin-top: 3rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.8s forwards;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.9rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.3s var(--ease);
  border: none;
  cursor: pointer;
}

.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--ink);
  padding: 0.9rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  border: 1px solid rgba(10,10,10,0.15);
  transition: all 0.3s var(--ease);
  cursor: pointer;
}

.btn-secondary:hover { border-color: var(--ink); }

.hero-metrics {
  margin-top: 5rem;
  display: flex;
  gap: 4rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(10,10,10,0.08);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 1s forwards;
}

.metric h3 {
  font-family: var(--serif);
  font-size: 2.8rem;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1;
}

.metric p {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--slate);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* ─── SECTION STYLING ─── */
section {
  padding: 7rem 3rem;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 700px;
}

.section-desc {
  margin-top: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--slate);
  max-width: 560px;
  font-weight: 300;
}

/* ─── CAPABILITIES ─── */
.capabilities {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}

.capabilities::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.capabilities .section-label { color: rgba(245,242,237,0.4); }
.capabilities .section-label::before { background: rgba(245,242,237,0.4); }
.capabilities .section-desc { color: rgba(245,242,237,0.5); }

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 4rem;
  background: rgba(245,242,237,0.06);
}

.cap-card {
  padding: 2.5rem;
  background: var(--ink);
  transition: all 0.4s var(--ease);
  position: relative;
}

.cap-card:hover {
  background: rgba(245,242,237,0.03);
}

.cap-icon {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(245,242,237,0.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: var(--accent);
  transition: all 0.3s var(--ease);
}

.cap-card:hover .cap-icon {
  border-color: var(--accent);
  background: rgba(37,99,235,0.1);
}

.cap-card h3 {
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.cap-card p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(245,242,237,0.45);
  font-weight: 300;
}

/* ─── APPROACH ─── */
.approach {
  border-top: 1px solid rgba(10,10,10,0.08);
}

.approach-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  margin-top: 4rem;
  align-items: start;
}

.approach-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 3rem;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid rgba(10,10,10,0.06);
  transition: all 0.3s var(--ease);
}

.step:first-child { padding-top: 0; }

.step:hover { padding-left: 0.5rem; }

.step-num {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--stone);
  line-height: 1;
  font-style: italic;
}

.step h3 {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.step p {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--slate);
  font-weight: 300;
}

.approach-visual {
  background: linear-gradient(145deg, rgba(37,99,235,0.04), rgba(37,99,235,0.01));
  border: 1px solid rgba(37,99,235,0.08);
  border-radius: 16px;
  padding: 3rem;
  position: sticky;
  top: 6rem;
}

.approach-visual h3 {
  font-family: var(--serif);
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.approach-visual p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--slate);
  font-weight: 300;
  margin-bottom: 2rem;
}

.compliance-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(10,10,10,0.1);
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
  transition: all 0.3s var(--ease);
}

.badge:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* ─── ARTICLES ─── */
.articles {
  border-top: 1px solid rgba(10,10,10,0.08);
}

.articles-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 4rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

.article-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(10,10,10,0.05);
  transition: all 0.4s var(--ease);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(10,10,10,0.08);
  border-color: transparent;
}

.article-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.article-img-inner {
  width: 100%;
  height: 100%;
  transition: transform 0.6s var(--ease);
}

.article-card:hover .article-img-inner {
  transform: scale(1.05);
}

/* Article gradient backgrounds */
.article-img-1 {
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-img-2 {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0c4a6e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-img-3 {
  background: linear-gradient(135deg, #0a0a0a 0%, #1c1917 50%, #292524 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-img svg { opacity: 0.25; }

.article-body {
  padding: 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-tag {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.article-card h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.article-card p {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--slate);
  font-weight: 300;
  flex: 1;
}

.article-meta {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(10,10,10,0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--slate);
}

.article-read {
  font-weight: 500;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.3s var(--ease);
}

.article-card:hover .article-read {
  color: var(--accent);
  gap: 0.6rem;
}

/* ─── ORIGIN ─── */
.origin {
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}

.origin::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.origin .section-label { color: rgba(245,242,237,0.4); }
.origin .section-label::before { background: rgba(245,242,237,0.4); }

.origin-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  margin-top: 3rem;
}

.origin-text p {
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(245,242,237,0.6);
  font-weight: 300;
  margin-bottom: 1.5rem;
}

.origin-text p:first-child {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1.5;
  color: rgba(245,242,237,0.85);
  font-style: italic;
}

.origin-aside {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 0.5rem;
}

.origin-stat {
  padding: 2rem;
  border: 1px solid rgba(245,242,237,0.08);
  border-radius: 12px;
  transition: all 0.3s var(--ease);
}

.origin-stat:hover {
  border-color: rgba(37,99,235,0.3);
  background: rgba(37,99,235,0.04);
}

.origin-stat h4 {
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.4rem;
}

.origin-stat p {
  font-size: 0.85rem;
  color: rgba(245,242,237,0.4);
  font-weight: 300;
  line-height: 1.5;
}

/* ─── CTA ─── */
.cta {
  text-align: center;
  padding: 8rem 3rem;
  border-top: 1px solid rgba(10,10,10,0.08);
}

.cta .section-label { justify-content: center; }
.cta .section-label::before { display: none; }

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

.cta .section-desc {
  margin: 1.5rem auto 0;
  text-align: center;
  max-width: 480px;
}

.cta .hero-actions {
  justify-content: center;
  margin-top: 2.5rem;
  opacity: 1;
  animation: none;
}

/* ─── FOOTER ─── */
footer {
  padding: 3rem;
  border-top: 1px solid rgba(10,10,10,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

footer p {
  font-size: 0.78rem;
  color: var(--slate);
}

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.78rem;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-links a:hover { color: var(--ink); }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-grid { grid-template-columns: 1fr; gap: 3rem; }
  .approach-visual { position: static; }
  .origin-content { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  section { padding: 4rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 3rem; }
  .hero-metrics { flex-direction: column; gap: 2rem; }
  .cap-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .articles-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  footer { flex-direction: column; gap: 1.5rem; text-align: center; }
  .footer-links { justify-content: center; }
  .cta { padding: 5rem 1.5rem; }
}

/* ─── MOBILE NAV ─── */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
  position: relative;
}

.mobile-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  margin: 5px 0;
  transition: all 0.4s var(--ease);
  transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,10,10,0.3);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mobile-backdrop.visible {
  opacity: 1;
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .mobile-backdrop { display: block; pointer-events: none; }
  .mobile-backdrop.visible { pointer-events: auto; }

  .nav-links {
    display: flex !important;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    flex-direction: column;
    background: var(--paper);
    padding: 5.5rem 2rem 2.5rem;
    gap: 0;
    border-bottom: 1px solid rgba(10,10,10,0.08);
    transform: translateY(-100%);
    transition: transform 0.5s var(--ease);
    box-shadow: 0 20px 60px rgba(10,10,10,0.1);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links li {
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }

  .nav-links.open li {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-links.open li:nth-child(1) { transition-delay: 0.15s; }
  .nav-links.open li:nth-child(2) { transition-delay: 0.2s; }
  .nav-links.open li:nth-child(3) { transition-delay: 0.25s; }
  .nav-links.open li:nth-child(4) { transition-delay: 0.3s; }
  .nav-links.open li:nth-child(5) { transition-delay: 0.35s; }

  .nav-links a {
    display: block;
    padding: 0.9rem 0;
    font-size: 1.05rem !important;
    color: var(--ink) !important;
    border-bottom: 1px solid rgba(10,10,10,0.05);
  }

  .nav-links li:last-child a {
    border-bottom: none;
    margin-top: 0.75rem;
    text-align: center;
    border-radius: 8px;
    padding: 0.85rem 1.5rem !important;
  }

  .nav-links .nav-cta {
    color: var(--paper) !important;
  }
}