/* ===================================
   CIVIO-INSPIRED DESIGN (Light only)
   =================================== */

:root {
  --green: #1f4c34;
  --green-light: #2a5f43;
  --cream: #f9f7eb;
  --cream-dark: #f0ede0;
  --white: #ffffff;
  --text-dark: #1f4c34;
  --text-muted: #5a7d6a;
  --link: #0066cc;

  --font: 'DM Sans', 'Inter', -apple-system, sans-serif;
  --container: 900px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* ===================================
   NAVIGATION
   =================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s, border 0.3s;
}

.nav.scrolled {
  background: var(--cream);
  border-bottom: 1px solid var(--cream-dark);
}

.nav-logo {
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
}

.nav.scrolled .nav-logo {
  color: var(--text-dark);
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255,255,255,0.8);
}

.nav.scrolled .nav-link {
  color: var(--text-muted);
}

.nav-link:hover {
  text-decoration: none;
  opacity: 0.7;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
}

.nav.scrolled .mobile-menu-toggle span {
  background: var(--text-dark);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--cream);
  padding: 20px 40px;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
  border-bottom: 1px solid var(--cream-dark);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 16px;
  color: var(--text-dark);
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .mobile-menu-toggle { display: flex; }
  .nav { padding: 16px 24px; }
}

/* ===================================
   HERO
   =================================== */

.hero {
  min-height: 100vh;
  background: var(--green);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 40px 60px;
  text-align: center;
}

.hero-title {
  font-size: 72px;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}

.hero-image {
  width: 260px;
  height: 380px;
  border-radius: 0;
  object-fit: cover;
  margin-bottom: 48px;
}

.hero-subtitle {
  font-size: 28px;
  font-weight: 400;
  color: var(--white);
  max-width: 500px;
  line-height: 1.4;
}

/* ===================================
   SECTIONS
   =================================== */

.section {
  padding: 50px 40px;
  max-width: var(--container);
  margin: 0 auto;
}

.section-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--green);
  margin-bottom: 32px;
}

.section-title {
  font-size: 28px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 28px;
}

.section-header {
  font-size: 20px;
  font-weight: 600;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--green);
  margin-bottom: 32px;
}

/* ===================================
   ABOUT
   =================================== */

.about-content {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-dark);
}

.about-content p {
  margin-bottom: 20px;
}

.about-content p:last-child {
  margin-bottom: 0;
}

.about-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.about-btn {
  font-size: 14px;
  color: var(--text-dark);
  padding: 8px 16px;
  border: 1px solid var(--cream-dark);
  border-radius: 6px;
  transition: all 0.2s;
}

.about-btn:hover {
  border-color: var(--text-muted);
  text-decoration: none;
}

.about-btn.primary {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}

.about-btn.primary:hover {
  background: var(--green-light);
}

/* ===================================
   NEWS (detailed)
   =================================== */

.news-full {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-entry {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--cream-dark);
}

.news-entry:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.news-entry .news-date {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.news-entry p {
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.6;
}

/* ===================================
   EXPERIENCE TIMELINE
   =================================== */

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--cream-dark);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.timeline-meta {
  font-size: 16px;
  color: var(--green);
  margin-bottom: 12px;
}

.timeline-desc {
  font-size: 16px;
  color: var(--text-dark);
  line-height: 1.6;
}

/* ===================================
   PUBLICATIONS
   =================================== */

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.pub-card {
  display: flex;
  gap: 24px;
  padding: 24px;
  background: var(--white);
  border-radius: 12px;
  transition: transform 0.2s;
}

.pub-card:hover {
  transform: translateY(-2px);
}

.pub-image {
  width: 160px;
  height: 100px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  background: var(--cream-dark);
}

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

.pub-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pub-venue {
  font-size: 13px;
  font-weight: 500;
  color: var(--link);
  margin-bottom: 6px;
}

.pub-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 6px;
  line-height: 1.4;
}

.pub-authors {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pub-links {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.pub-btn {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dark);
  padding: 6px 14px;
  border: 1px solid var(--cream-dark);
  border-radius: 100px;
  transition: all 0.2s;
}

.pub-btn:hover {
  border-color: var(--text-dark);
  text-decoration: none;
}

.coming-soon {
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
}

@media (max-width: 640px) {
  .pub-card {
    flex-direction: column;
  }

  .pub-image {
    width: 100%;
    height: 140px;
  }
}

/* ===================================
   FOOTER
   =================================== */

.footer {
  padding: 40px;
  text-align: center;
  border-top: 1px solid var(--cream-dark);
}

.footer p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===================================
   RESPONSIVE
   =================================== */

@media (max-width: 768px) {
  .hero {
    padding: 100px 24px 60px;
  }

  .hero-title {
    font-size: 48px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .hero-image {
    width: 200px;
    height: 290px;
  }

  .section {
    padding: 40px 24px;
  }

  .section-title {
    font-size: 26px;
  }
}

/* ===================================
   ANIMATIONS
   =================================== */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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