/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1a1a1a;
  background: #fff;
  line-height: 1.6;
  font-size: 16px;
}

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  line-height: 1.2;
}

h1, h2, h3 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}

h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p  { font-size: 1.05rem; color: #3a3a3a; }

/* ===== LAYOUT HELPERS ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 96px 0; }
.section--dark { background: #0f1117; color: #fff; }
.section--dark p { color: #b0b8c8; }
.section--gray { background: #f7f7f5; }

/* ===== NAVIGATION ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  padding: 0 2rem;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #0f1117;
  white-space: nowrap;
  line-height: 1.3;
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: #3a3a3a;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

.nav-links a:hover,
.nav-links a.active { color: #0f1117; }

.nav-cta {
  background: #0f1117;
  color: #fff !important;
  padding: 0.5rem 1.2rem;
  border-radius: 4px;
  font-size: 0.85rem !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: #2a2a3a !important; }

/* ===== HAMBURGER (mobile) ===== */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #0f1117;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== HERO ===== */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: #0f1117;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1552664730-d307ca884978?w=1600&q=80') center/cover no-repeat;
  opacity: 0.12;
}

.hero-content {
  position: relative;
  max-width: 760px;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #3d52c8;
  margin-bottom: 1.5rem;
}

.hero h1 {
  color: #fff;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.15rem;
  color: #b0b8c8;
  max-width: 620px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: #fff;
  color: #0f1117;
}

.btn-primary:hover {
  background: #dde2f5;
}

.btn-dark {
  background: #0f1117;
  color: #fff;
}

.btn-dark:hover { background: #2a2a3a; }

/* ===== PROBLEM SECTION ===== */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.problem-points { list-style: none; margin: 2rem 0; }

.problem-points li {
  padding: 1.1rem 0;
  border-bottom: 1px solid #e8e8e8;
  font-size: 1.05rem;
  color: #3a3a3a;
  padding-left: 1.5rem;
  position: relative;
}

.problem-points li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #3d52c8;
  font-weight: 700;
}

.problem-summary {
  margin-top: 2rem;
  font-size: 1.05rem;
  font-weight: 500;
  color: #0f1117;
  line-height: 1.7;
  padding: 1.5rem;
  border-left: 3px solid #3d52c8;
  background: #f7f7f5;
}

.problem-image {
  border-radius: 8px;
  overflow: hidden;
  height: 480px;
}

.problem-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== SERVICES SECTION ===== */
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #3d52c8;
  margin-bottom: 1rem;
}

.section-intro {
  max-width: 640px;
  margin-bottom: 3.5rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.service-card {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 2rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.service-card .service-num {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #3d52c8;
  margin-bottom: 1rem;
}

.service-card h3 { margin-bottom: 0.75rem; }

.service-card p { font-size: 0.97rem; line-height: 1.65; }

.services-cta-box {
  background: #f7f7f5;
  border-radius: 8px;
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.services-cta-box p {
  max-width: 580px;
  font-size: 1rem;
  color: #3a3a3a;
}

/* ===== ABOUT SECTION ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image img {
  width: 100%;
  max-width: 420px;
  height: auto;
  object-fit: contain;
}

.about-content h2 { margin-bottom: 0.5rem; }
.about-content .about-title {
  font-size: 1rem;
  color: #3d52c8;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.about-content p { margin-bottom: 1.2rem; }

.credentials {
  margin-top: 2rem;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.credentials li {
  font-size: 0.95rem;
  color: #3a3a3a;
  padding-left: 1.25rem;
  position: relative;
}

.credentials li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #3d52c8;
}

/* ===== CONTACT SECTION ===== */
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-inner h2 { margin-bottom: 1rem; }
.contact-inner p { margin-bottom: 2rem; font-size: 1.05rem; }

.contact-email {
  display: inline-block;
  font-size: 1rem;
  font-weight: 500;
  color: #3d52c8;
  border-bottom: 1px solid currentColor;
  margin-bottom: 2.5rem;
}

.contact-email:hover { color: #2e40b0; }

/* ===== LOGO BAR ===== */
.logo-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
}

.logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.45;
  transition: opacity 0.2s;
}

.logo-item:hover { opacity: 0.7; }

.logo-item img {
  height: 36px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  filter: grayscale(100%);
}

.logo-item.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #0f1117;
  filter: none;
}

.logo-item--dark-bg {
  background: #1a1f2e;
  border-radius: 6px;
  padding: 10px 18px;
}

/* Client logos — larger, more prominent than credential logos */
.logo-bar--clients {
  gap: 4rem;
}

.logo-bar--clients .logo-item {
  opacity: 0.7;
}

.logo-bar--clients .logo-item:hover {
  opacity: 1;
}

.logo-bar--clients .logo-item img {
  height: 64px;
  max-width: 220px;
}

.logo-bar--clients .logo-item.logo-text {
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

/* ===== FOOTER ===== */
footer {
  background: #0f1117;
  color: #b0b8c8;
  padding: 2.5rem;
  text-align: center;
  font-size: 0.875rem;
}

footer .footer-logo {
  color: #fff;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

/* ===== SERVICES PAGE ===== */
.page-hero {
  background: #0f1117;
  color: #fff;
  padding: 100px 0 80px;
}

.page-hero h1 { color: #fff; margin-bottom: 1rem; }
.page-hero p { color: #b0b8c8; font-size: 1.1rem; max-width: 600px; }

.service-detail {
  padding: 60px 0;
  border-bottom: 1px solid #e8e8e8;
}

.service-detail:last-child { border-bottom: none; }

.service-detail-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
}

.service-meta .duration {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #3d52c8;
  text-transform: uppercase;
}

.service-meta h3 { margin: 0.5rem 0; }

.service-detail-content p { margin-bottom: 1rem; }

.module-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.module-list li {
  font-size: 0.97rem;
  padding-left: 1.25rem;
  position: relative;
  color: #3a3a3a;
}

.module-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #3d52c8;
}

/* ===== ABOUT PAGE ===== */
.about-page-bio p { margin-bottom: 1.2rem; }

.about-page-bio a {
  color: #3d52c8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-page-bio a:hover { color: #2e40b0; }

.credentials a {
  color: #3d52c8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.credentials a:hover { color: #2e40b0; }

/* ===== HOW IT WORKS ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
}

.process-step {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 2rem;
  position: relative;
  transition: box-shadow 0.2s, transform 0.2s;
}

.process-step:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.process-step-num {
  font-size: 3.5rem;
  font-weight: 700;
  color: #eaecf9;
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.process-step h3 {
  margin-bottom: 0.75rem;
}

.process-step p {
  font-size: 0.97rem;
  line-height: 1.65;
}

/* ===== WHO THIS IS FOR ===== */
.who-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.who-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.who-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.who-item-arrow {
  color: #3d52c8;
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.6;
  flex-shrink: 0;
}

.who-item p { margin: 0; }

/* ===== ENTRY CALLOUT ===== */
.entry-callout {
  background: #eaecf9;
  border-radius: 8px;
  padding: 2rem 2.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.entry-callout-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #3d52c8;
  margin-bottom: 0.5rem;
}

.entry-callout-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #0f1117;
  margin-bottom: 0.35rem;
}

.entry-callout-text {
  font-size: 0.95rem;
  color: #3a3a3a;
  margin: 0;
  max-width: 520px;
}

/* ===== EXECUTIVE BRIEF BANNER (services page) ===== */
.brief-banner {
  background: #eaecf9;
  border-bottom: 1px solid #d8daef;
  padding: 40px 0;
}

.brief-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.brief-banner-text h3 {
  font-size: 1.25rem;
  color: #0f1117;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.brief-banner-text p {
  font-size: 0.97rem;
  color: #3a3a3a;
  max-width: 560px;
  margin: 0;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  display: flex;
  flex-direction: column;
}

.faq-item {
  border-bottom: 1px solid #e8e8e8;
}

.faq-item summary {
  font-size: 1.05rem;
  font-weight: 600;
  color: #0f1117;
  padding: 1.5rem 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: #3d52c8;
  flex-shrink: 0;
}

.faq-item[open] > summary::after {
  content: '−';
}

.faq-answer {
  padding: 0 0 1.5rem;
  font-size: 0.97rem;
  color: #3a3a3a;
  line-height: 1.7;
  max-width: 680px;
}

/* ===== LINKEDIN ===== */
.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #0f1117;
  border: 1px solid #e8e8e8;
  border-radius: 4px;
  padding: 0.65rem 1.25rem;
  transition: all 0.2s;
  margin-top: 1.75rem;
}

.linkedin-link:hover {
  border-color: #0a66c2;
  color: #0a66c2;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .problem-grid,
  .about-grid,
  .who-grid { grid-template-columns: 1fr; }
  .problem-image,
  .about-image { height: 320px; order: -1; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-detail-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .services-cta-box { flex-direction: column; text-align: center; }
  .brief-banner-inner { flex-direction: column; align-items: flex-start; }
  .entry-callout { flex-direction: column; align-items: flex-start; }
  .process-steps { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; flex-direction: column; gap: 0; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 1rem 2rem;
  }
  .nav-links.open li { padding: 0.75rem 0; border-bottom: 1px solid #f0f0f0; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}