/* ============================================
   Allison Donine Deese — Professional Website
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #fafaf8;
  --color-bg-alt: #f0efeb;
  --color-text: #2c2c2c;
  --color-text-light: #5a5a5a;
  --color-accent: #3d5a80;
  --color-accent-dark: #2b4162;
  --color-accent-light: #98c1d9;
  --color-warm: #ee6c4d;
  --color-border: #ddd;
  --color-card-bg: #ffffff;
  --font-serif: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1100px;
  --nav-height: 64px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

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

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  z-index: 1000;
  transition: box-shadow 0.3s;
}

.nav.scrolled {
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.nav-name:hover {
  color: var(--color-accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
  letter-spacing: 0.01em;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s;
}

.nav-links a:hover {
  color: var(--color-accent);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s, opacity 0.3s;
}

/* --- Hero --- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  background: linear-gradient(165deg, var(--color-bg) 0%, #e8e6e1 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 90, 128, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}

.hero-text {
  max-width: 680px;
}

.hero-tagline {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-text-light);
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.25s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(61, 90, 128, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-1px);
}

/* --- Sections --- */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 64px;
  align-items: start;
}

.about-main p {
  margin-bottom: 20px;
  color: var(--color-text-light);
  font-size: 1.025rem;
  line-height: 1.8;
}

.about-main a {
  text-decoration: underline;
  text-decoration-color: rgba(61, 90, 128, 0.3);
  text-underline-offset: 3px;
}

.about-main a:hover {
  text-decoration-color: var(--color-accent);
}

.about-card {
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 28px;
  margin-bottom: 20px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

.about-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 20px;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

/* --- Research --- */
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.research-card {
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 36px 28px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  transition: transform 0.25s, box-shadow 0.25s;
}

.research-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
}

.research-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(61, 90, 128, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}

.research-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.research-card p {
  font-size: 0.925rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.dissertation-box {
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 36px;
  border-left: 4px solid var(--color-accent);
  border-top: 1px solid rgba(0,0,0,0.05);
  border-right: 1px solid rgba(0,0,0,0.05);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.dissertation-box h3 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.dissertation-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.dissertation-meta {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.dissertation-meta strong {
  color: var(--color-text);
}

/* --- Timeline / Experience --- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2.5px solid var(--color-accent);
  z-index: 1;
}

.timeline-item:first-child .timeline-marker {
  background: var(--color-accent);
}

.timeline-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.timeline-content h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline-org {
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 10px;
}

.timeline-content p:last-child {
  font-size: 0.925rem;
  color: var(--color-text-light);
  line-height: 1.7;
  max-width: 620px;
}

/* --- Education --- */
.education-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.education-card {
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 36px 28px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  text-align: center;
}

.education-degree {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: rgba(61, 90, 128, 0.08);
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.education-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.education-school {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.education-year {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 8px;
}

.education-detail {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-style: italic;
}

/* --- Publications --- */
.publication-list {
  margin-bottom: 36px;
}

.publication-item {
  background: var(--color-card-bg);
  border-radius: 10px;
  padding: 32px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  margin-bottom: 20px;
}

.publication-type {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-warm);
  background: rgba(238, 108, 77, 0.08);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.publication-item h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.publication-item h3 a {
  text-decoration: underline;
  text-decoration-color: rgba(61, 90, 128, 0.3);
  text-underline-offset: 3px;
}

.publication-meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.publication-advisors {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.publication-item > p:last-child {
  font-size: 0.925rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.publications-link {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.publications-link a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- Contact --- */
.contact-container {
  text-align: center;
}

.contact-intro {
  font-size: 1.05rem;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 16px;
  background: var(--color-card-bg);
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
  color: var(--color-text-light);
  transition: transform 0.25s, box-shadow 0.25s, color 0.2s;
}

.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
  color: var(--color-accent);
}

.contact-card svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact-card span {
  font-size: 0.85rem;
  font-weight: 500;
}

/* --- Footer --- */
.footer {
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.footer p {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }

  .education-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(250, 250, 248, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + 20px);
  }

  .hero-content {
    padding: 60px 24px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 1.7rem;
    margin-bottom: 32px;
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-card span {
    font-size: 0.75rem;
  }
}