/* ===================================
   Modern Academic Website - Taylor Killian
   Color Scheme: White, Navy Blue, Light Blue
   =================================== */

/* === CSS Variables === */
:root {
  --primary-bg: #ffffff;
  --secondary-bg: #f8f9fa;
  --navy: #1a365d;
  --light-blue: #5a7fa5;
  --accent-blue: #7090b0;
  --text-dark: #2c3e50;
  --text-light: #6c757d;
  --border-color: #e9ecef;
  --shadow: 0 2px 8px rgba(26, 54, 93, 0.08);
  --shadow-hover: 0 4px 16px rgba(26, 54, 93, 0.15);
}

/* === Reset & Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  color: var(--text-dark);
  background-color: var(--primary-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1rem;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--navy);
}

h3 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

a {
  color: var(--navy);
  text-decoration: none;
  transition: color 0.3s ease, border-bottom 0.3s ease;
}

a:hover {
  color: var(--light-blue);
}

strong, b {
  color: var(--navy);
  font-weight: 600;
}

em {
  font-style: italic;
  color: var(--text-light);
}

/* === Navigation Bar === */
.navbar {
  background-color: var(--navy);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(26, 54, 93, 0.15);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  color: white;
  font-size: 1.25rem;
  font-weight: 700;
  font-family: 'Georgia', 'Times New Roman', serif;
}

.navbar-nav {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav a {
  color: white;
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s ease;
}

.navbar-nav a:hover {
  color: white;
  border-bottom-color: var(--accent-blue);
}

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

.section {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

/* === Header/Hero Section === */
.hero-about-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
}

.hero-about-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.hero-content {
  text-align: center;
  position: sticky;
  top: 100px;
}

.hero-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  border: 4px solid var(--navy);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.hero-image:hover {
  transform: scale(1.05);
}

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

.hero-content h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--navy);
}

.hero-content .title {
  font-size: 1.125rem;
  color: var(--light-blue);
  margin-bottom: 1rem;
  font-weight: 400;
}

.hero-content .tagline {
  font-size: 0.95rem;
  color: var(--text-dark);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.hero-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero-links a {
  color: var(--light-blue);
  font-size: 1.5rem;
  transition: transform 0.3s ease, color 0.3s ease;
}

.hero-links a:hover {
  color: var(--navy);
  transform: translateY(-3px);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--navy);
  color: white;
  border-radius: 6px;
  font-weight: 500;
  transition: background-color 0.3s ease, transform 0.2s ease;
  border: 2px solid var(--navy);
}

.btn:hover {
  background-color: var(--light-blue);
  border-color: var(--light-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--navy);
}

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

/* === About Section === */
.about-content {
  font-size: 1.05rem;
}

.about-content p:first-child {
  margin-top: 0;
}

.bio-box {
  background-color: rgba(90, 127, 165, 0.05);
  padding: 2rem;
  border-radius: 12px;
}

/* === News Section === */
.news-list {
  list-style: none;
  max-width: 900px;
  margin: 0 auto;
}

.news-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.news-date {
  color: var(--light-blue);
  font-weight: 600;
  font-size: 0.95rem;
  margin-right: 1rem;
  min-width: 100px;
  display: inline-block;
}

.news-content {
  display: inline;
}

/* === Publications Section === */
.publications-section {
  background-color: var(--secondary-bg);
}

.publication {
  background: var(--primary-bg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.publication:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.publication-title {
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.publication-authors {
  color: var(--text-dark);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.publication-venue {
  color: var(--light-blue);
  font-style: italic;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.publication-description {
  color: var(--text-dark);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.publication-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pub-link {
  display: inline-block;
  padding: 0.4rem 1rem;
  background-color: var(--secondary-bg);
  color: var(--navy);
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.pub-link:hover {
  background-color: var(--navy);
  color: white;
  border-color: var(--navy);
}

.year-section {
  margin-bottom: 3rem;
}

.year-heading {
  color: var(--light-blue);
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--light-blue);
}

/* === Blog Section === */
.blog-section {
  background-color: var(--primary-bg);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.blog-card {
  background: var(--primary-bg);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  border: 1px solid var(--border-color);
}

.blog-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.blog-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-card-content {
  padding: 1.5rem;
}

.blog-card-date {
  color: var(--light-blue);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.blog-card-title {
  color: var(--navy);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.blog-card-title a {
  color: var(--navy);
}

.blog-card-title a:hover {
  color: var(--light-blue);
}

.blog-card-excerpt {
  color: var(--text-dark);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.blog-placeholder {
  text-align: center;
  padding: 3rem 2rem;
  background-color: var(--secondary-bg);
  border-radius: 8px;
  color: var(--text-light);
}

/* === Footer === */
footer {
  background-color: var(--navy);
  color: white;
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

footer a {
  color: white;
}

footer a:hover {
  color: var(--accent-blue);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.footer-links a:hover {
  transform: translateY(-3px);
}

.footer-text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

/* === Utilities === */
.text-center {
  text-align: center;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* === Responsive Design === */
@media (max-width: 968px) {
  .hero-about-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-content {
    position: static;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .container {
    padding: 0 1.5rem;
  }

  .navbar-nav {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .hero-content .title {
    font-size: 1rem;
  }

  .hero-image {
    width: 150px;
    height: 150px;
  }

  .section {
    padding: 3rem 0;
  }

  h2 {
    font-size: 1.75rem;
  }

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

  .publication {
    padding: 1rem;
  }

  .news-date {
    display: block;
    margin-bottom: 0.5rem;
  }

  .footer-links {
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .navbar-brand {
    font-size: 1rem;
  }

  .navbar-nav {
    gap: 0.75rem;
    font-size: 0.85rem;
  }

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .hero-links {
    gap: 0.75rem;
  }

  .publication-links {
    flex-direction: column;
  }

  .pub-link {
    text-align: center;
  }
}

/* === Animation === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}