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

:root {
  --black: #000000;
  --white: #ffffff;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--black);
  color: var(--white);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

/* =====================================
   SITE HEADER / NAV
   ===================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px 0;
  background: var(--black);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--white);
  display: block;
  transition: opacity 0.2s;
}

.social-icon:hover svg {
  opacity: 0.7;
}

.header-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.site-logo-link {
  display: block;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  gap: 32px;
  padding-bottom: 10px;
}

.main-nav a {
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--white);
  padding-bottom: 3px;
  position: relative;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.main-nav a:hover {
  opacity: 0.7;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--white);
}

.header-right {
  display: flex;
  align-items: center;
}

.btn-reach {
  background: var(--white);
  color: var(--black);
  border: none;
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.2s;
  border-radius: 0;
  text-decoration: none;
  display: inline-block;
}

.btn-reach:hover {
  background: #d8d8d8;
  color: var(--black);
}

/* =====================================
   HOMEPAGE HERO
   ===================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 0;
  position: relative;
}

.hero-logo-img {
  width: clamp(260px, 38vw, 520px);
  height: auto;
  display: block;
  margin: 0 auto;
  opacity: 0;
  animation: logoReveal 1.4s cubic-bezier(0.22, 1, 0.36, 1) 0.2s forwards;
}

/* Hero CTA buttons */
.hero-cta {
  display: flex;
  justify-content: center;
  gap: 56px;
  padding: 72px 40px 100px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 1s cubic-bezier(0.22, 1, 0.36, 1) 1.2s forwards;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border: 1px solid var(--white);
  color: var(--white);
  background: transparent;
  font-size: 13.5px;
  font-weight: 400;
  letter-spacing: 0.03em;
  font-family: var(--font);
  cursor: pointer;
  text-decoration: none;
  min-width: 120px;
  transition: background 0.2s, color 0.2s;
}

.btn-outline:hover {
  background: var(--white);
  color: var(--black);
}

/* =====================================
   ANIMATIONS
   ===================================== */
@keyframes logoReveal {
  0% { opacity: 0; transform: scale(0.88); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes fadeUp {
  0% { opacity: 0; transform: translateY(24px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

/* Scroll-reveal utility */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* =====================================
   FOOTER
   ===================================== */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 28px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  text-decoration: underline;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-right {
  text-align: right;
  font-size: 12.5px;
  opacity: 0.75;
  line-height: 1.7;
}

/* =====================================
   INNER PAGES — SHARED
   ===================================== */
.page-wrap {
  padding-top: 110px;
}

.section {
  padding: 80px 10%;
}

.section-title {
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: 0.06em;
}

/* =====================================
   ABOUT PAGE
   ===================================== */
.about-who {
  padding: 80px 10%;
  text-align: center;
}

.about-who p {
  font-size: 15.5px;
  line-height: 1.85;
  max-width: 640px;
  margin: 0 auto 18px;
  opacity: 0.9;
}

.vision-mission {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 80px 10%;
}

.vm-item h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 18px;
}

.vm-item p {
  font-size: 14.5px;
  line-height: 1.85;
  opacity: 0.82;
}

.values-section {
  padding: 80px 10%;
}

.values-section .section-title {
  margin-bottom: 60px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.value-item h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
}

.value-item p {
  font-size: 14px;
  line-height: 1.85;
  opacity: 0.78;
}

.team-section {
  padding: 80px 10%;
}

.team-section h2 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 52px;
}

.team-grid {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.team-avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  margin-bottom: 18px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-avatar svg {
  width: 70px;
  height: 70px;
  opacity: 0.4;
}

.team-member h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 5px;
}

.team-member a {
  font-size: 13px;
  opacity: 0.65;
  transition: opacity 0.2s;
}

.team-member a:hover {
  opacity: 1;
}

/* =====================================
   SERVICES PAGE
   ===================================== */
.services-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 80px 10%;
  text-align: center;
}

.service-col h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.service-col .subtitle {
  font-style: italic;
  font-weight: 300;
  font-size: 15px;
  margin-bottom: 32px;
  opacity: 0.82;
  line-height: 1.5;
}

.service-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-col ul li {
  font-size: 14px;
  opacity: 0.82;
  line-height: 1.6;
}

.service-col .description {
  font-size: 14px;
  line-height: 1.85;
  opacity: 0.82;
  text-align: center;
}

.service-col .service-subsection {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.45;
  margin: 24px 0 8px;
}

.differentiators {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  padding: 80px 10%;
}

.diff-heading {
  font-size: clamp(30px, 4.5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.diff-points {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.diff-point h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
}

.diff-point p {
  font-size: 14px;
  line-height: 1.85;
  opacity: 0.82;
}

/* =====================================
   CONTACT PAGE
   ===================================== */
.contact-section {
  padding: 80px 10%;
  max-width: 780px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 22px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 7px;
  letter-spacing: 0.02em;
}

.form-group label .req {
  font-weight: 300;
  opacity: 0.6;
  margin-left: 5px;
  font-size: 12px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--white);
  padding: 12px 14px;
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  border-radius: 0;
  transition: border-color 0.2s, background 0.2s;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 160px;
}

.btn-submit {
  background: var(--white);
  color: var(--black);
  border: none;
  padding: 13px 36px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  letter-spacing: 0.04em;
  border-radius: 0;
  transition: background 0.2s;
  margin-top: 8px;
}

.btn-submit:hover {
  background: #d8d8d8;
}

/* =====================================
   PUBLICATIONS PAGE
   ===================================== */
.pub-featured {
  padding: 60px 10% 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.pub-featured-img {
  width: 100%;
  max-width: 760px;
  height: auto;
  display: block;
  transition: opacity 0.2s;
}

.pub-featured .pub-cover-link:hover .pub-featured-img {
  opacity: 0.85;
}

.pub-featured-dl {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 40px;
}

.pub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px 80px;
  padding: 40px 10% 80px;
  align-items: start;
}

.pub-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.pub-cover-link {
  display: block;
  width: 100%;
}

.pub-cover-link:hover .pub-cover {
  opacity: 0.85;
}

.pub-cover {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.2s;
}

.insight-link {
  display: block;
}

.insight-link:hover .insight-img {
  opacity: 0.8;
}

.insight-img {
  transition: opacity 0.2s;
}

.pub-text-label {
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.6;
  opacity: 0.88;
  text-align: left;
  width: 100%;
}

.pub-dl {
  min-width: 140px;
}

/* INSIGHTS SECTION (on publications page) */
.insights-section {
  padding: 60px 10% 80px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.insights-heading {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin-bottom: 40px;
  opacity: 0.9;
}

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

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

/* =====================================
   PLACEHOLDER PAGES
   ===================================== */
.placeholder-section {
  padding: 80px 10%;
  text-align: center;
}

.placeholder-section p {
  font-size: 15px;
  opacity: 0.6;
  margin-top: 20px;
}

/* =====================================
   RESPONSIVE
   ===================================== */
@media (max-width: 900px) {
  .vision-mission {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 8%;
  }

  .values-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .services-cols {
    grid-template-columns: 1fr;
    text-align: left;
    padding: 60px 8%;
  }

  .differentiators {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 8%;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 12px 20px 0;
  }

  .main-nav {
    display: none;
  }

  .hero-cta {
    gap: 20px;
    padding: 60px 20px 80px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 24px;
  }

  .footer-right {
    text-align: left;
  }

  .about-who {
    padding: 60px 8%;
  }

  .values-section {
    padding: 60px 8%;
  }

  .team-section {
    padding: 60px 8%;
  }

  .contact-section {
    padding: 60px 8%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}