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

:root {
  --bg:       #fff;
  --bg-2:     #f7f7f7;
  --surface:  #f0f0f0;
  --border:   rgba(0,0,0,0.1);
  --border-2: rgba(0,0,0,0.2);
  --text:     #000;
  --text-2:   #666;
  --text-3:   #aaa;
  --radius:    14px;
  --radius-sm: 8px;
  --sans: 'Inter', system-ui, -apple-system, sans-serif;
  --serif: 'Playfair Display', Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }

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

h1, h2, h3, h4 { font-family: var(--serif); }

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* BUTTONS */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: 50px;
  font-family: var(--sans);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: -.01em;
  transition: opacity .2s, transform .2s var(--ease);
  cursor: pointer;
  border: none;
}

.btn-primary { background: #000; color: #fff; }
.btn-primary:hover { opacity: .75; transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border-2);
}
.btn-ghost:hover { background: rgba(0,0,0,.05); transform: translateY(-2px); }

.btn--large { padding: 1rem 2.5rem; font-size: 1.05rem; }
.btn--full  { width: 100%; justify-content: center; }

/* NAV */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s, box-shadow .3s;
}

.nav--scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--sans);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--text);
}

.logo-mark { height: 34px; width: 34px; display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a { font-size: .9rem; font-weight: 500; color: var(--text-2); transition: color .2s; }
.nav-links a:hover { color: var(--text); }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all .3s;
}
.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem 2rem 1.5rem;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  gap: 1.2rem;
}
.nav-mobile a { font-size: 1rem; font-weight: 500; color: var(--text-2); }
.nav-mobile a:hover { color: var(--text); }
.nav-mobile.open { display: flex; }

/* HERO */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 0 5rem;
  border-bottom: 1px solid var(--border);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: .4rem 1rem;
  border-radius: 50px;
  border: 1px solid var(--border-2);
  color: var(--text-2);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero-headline {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}

.hero-accent { color: var(--text); }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* SECTIONS */

.section { padding: 7rem 0; }

.section--dark {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header { text-align: center; max-width: 640px; margin: 0 auto 4rem; }

.section-label {
  display: inline-block;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-sub { font-size: 1rem; color: var(--text-2); line-height: 1.75; }

/* SERVICES */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  transition: border-color .25s, transform .25s var(--ease);
}
.service-card:hover { border-color: var(--border-2); transform: translateY(-4px); }
.service-card--featured { grid-row: span 2; }
.service-card--cta { justify-content: center; align-items: flex-start; gap: 1rem; }

.service-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(0,0,0,.06);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  margin-bottom: .5rem;
}

.service-card h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -.02em; }
.service-card p  { font-size: .9rem; color: var(--text-2); line-height: 1.65; }

.service-features { list-style: none; display: flex; flex-direction: column; gap: .45rem; margin-top: .5rem; }
.service-features li { font-size: .85rem; color: var(--text-2); padding-left: 1.2rem; position: relative; }
.service-features li::before {
  content: '';
  position: absolute;
  left: 0; top: .55em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--text-3);
}

.email-link {
  font-family: var(--sans);
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1.5px solid var(--border-2);
  padding-bottom: .1rem;
  transition: border-color .2s;
}
.email-link:hover { border-color: var(--text); }

/* TAILORED */

.tailored-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.tailored-right p {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.tailored-right p:last-child { margin-bottom: 0; }

/* WHY OBLI */

.why-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: 5rem; align-items: start; }
.why-left { position: sticky; top: 7rem; }
.why-right { display: flex; flex-direction: column; gap: 1.25rem; }

.why-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  display: flex;
  gap: 1.5rem;
  transition: border-color .25s;
}
.why-card:hover { border-color: var(--border-2); }

.why-num { font-family: var(--sans); font-size: .75rem; font-weight: 800; letter-spacing: .08em; color: var(--text-2); min-width: 28px; padding-top: .15rem; }
.why-text h4 { font-size: 1rem; font-weight: 700; margin-bottom: .4rem; letter-spacing: -.02em; }
.why-text p  { font-size: .88rem; color: var(--text-2); line-height: 1.65; }

/* PROCESS */

.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); }
.process-step { display: flex; flex-direction: column; gap: 1.5rem; padding-right: 2rem; }
.step-marker { display: flex; align-items: center; gap: 1rem; }

.step-num {
  font-family: var(--sans);
  width: 44px; height: 44px;
  border-radius: 50%;
  background: #000; color: #fff;
  font-size: .9rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.step-line { flex: 1; height: 1px; background: var(--border); }
.process-step:last-child .step-line { display: none; }

.step-content h4 { font-size: 1rem; font-weight: 700; margin-bottom: .5rem; letter-spacing: -.02em; }
.step-content p  { font-size: .88rem; color: var(--text-2); line-height: 1.65; }

/* CTA */

.cta-banner {
  padding: 7rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.cta-inner h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 1rem; }
.cta-inner p  { font-size: 1.05rem; color: var(--text-2); max-width: 500px; margin: 0 auto 2.5rem; line-height: 1.75; }

.cta-email {
  display: inline-block;
  font-family: var(--sans);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
  border-bottom: 2px solid var(--border-2);
  padding-bottom: .2rem;
  transition: border-color .2s;
}
.cta-email:hover { border-color: var(--text); }

/* FOOTER */

.footer { border-top: 1px solid var(--border); }

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 3rem;
  padding-top: 4rem;
  padding-bottom: 3rem;
  flex-wrap: wrap;
}

.footer-brand p { font-size: .88rem; color: var(--text-3); margin-top: .75rem; max-width: 220px; line-height: 1.6; }
.footer-links { display: flex; gap: 4rem; }
.footer-col { display: flex; flex-direction: column; gap: .75rem; }
.footer-col h5 { font-family: var(--sans); font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); margin-bottom: .25rem; }
.footer-col a { font-size: .88rem; color: var(--text-2); transition: color .2s; }
.footer-col a:hover { color: var(--text); }

.footer-bottom { border-top: 1px solid var(--border); padding: 1.25rem 0; }
.footer-bottom .container { display: flex; justify-content: space-between; }
.footer-bottom span { font-size: .82rem; color: var(--text-3); }

/* SCROLL REVEAL */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* RESPONSIVE */

@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card--featured { grid-row: span 1; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
  .step-line { display: none; }
  .why-layout { grid-template-columns: 1fr; gap: 3rem; }
  .why-left { position: static; }
  .tailored-layout { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 2rem; }
  .section { padding: 5rem 0; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.8rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-email { font-size: 1.15rem; }
}