/* ============================================
   CSS Custom Properties (Earth-tone Palette)
   ============================================ */
:root {
  --primary: #1B4965;
  --secondary: #2E8B7A;
  --accent: #D4A843;
  --bg-alt: #F5F3EF;
  --text-dark: #2D3436;
  --text-white: #FFFFFF;
  --contact-bg: #1a3a4a;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --transition: all 0.3s ease;
}

/* ============================================
   Base & Typography
   ============================================ */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

body {
  font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
}

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

a:hover {
  color: #c0952e;
}

.section-title {
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  text-align: center;
  margin-bottom: 0.8rem;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: #636e72;
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto 2rem;
}

.section-padding {
  padding: 3.5rem 0;
  border-bottom: 1px solid #E8E6E1;
}

.section-alt {
  background-color: #FFFFFF;
}

/* ============================================
   Navbar
   ============================================ */
#mainNav {
  background: var(--primary);
  padding: 1rem 0;
  transition: var(--transition);
}

#mainNav.navbar-shrink {
  padding: 0.5rem 0;
  background: rgba(27, 73, 101, 0.97);
  box-shadow: var(--shadow-md);
}

#mainNav .navbar-brand {
  font-family: 'Kaushan Script', cursive;
  font-size: 1.6rem;
  color: var(--text-white);
  letter-spacing: 1px;
}

#mainNav .nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.5rem 0.8rem;
  transition: var(--transition);
}

#mainNav .nav-link:hover,
#mainNav .nav-link.active {
  color: var(--accent);
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 75vh;
  padding-top: 70px;
  display: flex;
  align-items: center;
  background: url('../assets/hero-bg.webp') center / cover no-repeat;
  overflow: hidden;
}

/* Radial vignette — darkens only the centre where text sits */
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 55% 65% at 50% 50%, rgba(0,0,0,0.65) 0%, transparent 100%);
  z-index: 0;
}

.hero-info-col {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
}

.hero-info-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.hero-profile-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent);
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

.hero-name {
  font-size: 2.2rem;
  color: var(--text-white);
  margin-bottom: 0.3rem;
  text-shadow: 0 1px 6px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.7);
}

.hero-title {
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.2rem;
  text-shadow: 0 1px 6px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.7);
}

.hero-affiliation {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.5rem;
  text-shadow: 0 1px 6px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.7);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.hero-tag {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--text-white);
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  letter-spacing: 0.5px;
  opacity: 0;
  transform: translateY(10px);
  animation: tagFadeIn 0.5s ease forwards;
}

.hero-tag:nth-child(1) { animation-delay: 0.2s; }
.hero-tag:nth-child(2) { animation-delay: 0.35s; }
.hero-tag:nth-child(3) { animation-delay: 0.5s; }
.hero-tag:nth-child(4) { animation-delay: 0.65s; }
.hero-tag:nth-child(5) { animation-delay: 0.8s; }
.hero-tag:nth-child(6) { animation-delay: 0.95s; }
.hero-tag:nth-child(7) { animation-delay: 1.1s; }

@keyframes tagFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn-accent {
  background: var(--accent);
  color: var(--text-dark);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  padding: 0.7rem 2rem;
  border-radius: 30px;
  border: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
}

.btn-accent:hover {
  background: #c0952e;
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-accent {
  border: 2px solid var(--accent);
  color: var(--accent);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  border-radius: 30px;
  transition: var(--transition);
}

.btn-outline-accent:hover {
  background: var(--accent);
  color: var(--text-dark);
}

/* ============================================
   About Section
   ============================================ */
#about {
  background: #FFFFFF;
}

#about > .container {
  position: relative;
}

.about-sidebar {
  padding: 2rem 1.5rem;
}

.about-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--accent);
  box-shadow: var(--shadow-md);
  margin-bottom: 1rem;
}

.about-name {
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 0.2rem;
}

.about-role {
  color: var(--secondary);
  font-weight: 600;
  margin-bottom: 0.1rem;
}

.about-affiliation {
  color: #636e72;
  margin-bottom: 1rem;
}

.about-social a {
  display: inline-block;
  width: 42px;
  height: 42px;
  line-height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--text-white);
  font-size: 1.1rem;
  margin: 0 0.3rem;
  transition: var(--transition);
}

.about-social a:hover {
  background: var(--accent);
  color: var(--text-dark);
  transform: translateY(-3px);
}

.about-bio p {
  font-size: 1.05rem;
  text-align: justify;
}

.interest-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.interest-tag {
  background: var(--primary);
  color: var(--text-white);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
}

/* ============================================
   Research Section
   ============================================ */
.research-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-top: 3px solid var(--accent);
}

.research-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.research-card-img {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #f8f7f5;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.research-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.45s ease;
}

.research-card:hover .research-card-img img {
  transform: scale(1.05);
}

.research-card-zoom {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.research-card:hover .research-card-zoom {
  opacity: 1;
}

/* Lightbox */
.research-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.research-lightbox.active {
  display: flex;
}

.research-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

.research-lightbox:not(.active) * {
  display: none;
}

.research-lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.research-lightbox-close:hover {
  opacity: 1;
}

.research-card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  text-align: left;
}

.research-card h5 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
  font-weight: 700;
}

.research-card p {
  font-size: 0.85rem;
  color: #636e72;
  margin-bottom: 0;
  line-height: 1.5;
}


/* ============================================
   Publications Section
   ============================================ */
.pub-stats {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: #636e72;
}

.pub-stat strong {
  color: var(--primary);
}

.pub-stat-sep {
  margin: 0 0.6rem;
  color: #b2bec3;
}

.pub-subheading {
  color: var(--secondary);
  font-size: 1.05rem;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 0.3rem;
  margin: 1.5rem 0 0.8rem;
  display: inline-block;
}

.pub-list {
  padding-left: 1.5rem;
}

.pub-list li {
  margin-bottom: 0.8rem;
  line-height: 1.6;
  font-size: 0.95rem;
}

.pub-list li a {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pub-review {
  list-style: none;
  padding-left: 0;
}

.pub-review li::before {
  content: '\f15c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: 0.5rem;
  color: var(--accent);
}

.award-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #e6be5a);
  color: var(--text-dark);
  padding: 0.2rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  margin-bottom: 0.4rem;
}

/* ============================================
   Timeline (Experience & Education)
   ============================================ */
#experience > .container,
#education > .container {
  max-width: 1360px;
}
.timeline {
  position: relative;
  max-width: 1300px;
  margin: 0 auto;
  padding: 1.5rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 0.8rem 1.5rem;
  box-sizing: border-box;
}

.timeline-item.left {
  left: 0;
  text-align: right;
}

.timeline-item.right {
  left: 50%;
  text-align: left;
}

.timeline-dot {
  position: absolute;
  top: 1.2rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--primary);
  z-index: 1;
}

.timeline-item.left .timeline-dot {
  right: -8px;
}

.timeline-item.right .timeline-dot {
  left: -8px;
}

.timeline-content {
  background: var(--text-white);
  border-radius: 8px;
  padding: 1.2rem;
  box-shadow: var(--shadow-sm);
  text-align: left;
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-left: 3px solid var(--accent);
}

.timeline-content:hover {
  box-shadow: var(--shadow-md);
}

.timeline-content h5 {
  color: var(--primary);
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.timeline-content h6 {
  color: var(--secondary);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.timeline-location {
  color: #636e72;
  font-weight: 400;
  font-size: 0.85rem;
}

.timeline-date {
  display: inline-block;
  background: var(--primary);
  color: var(--text-white);
  padding: 0.2rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.timeline-content ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

.timeline-content ul li {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.timeline-content p {
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.bg-accent {
  background-color: var(--accent) !important;
}

/* ============================================
   Awards Section
   ============================================ */
.awards-list {
  max-width: 750px;
  margin: 0 auto;
}

.award-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.6rem;
  padding: 0.7rem 1rem;
  background: var(--text-white);
  border-radius: 6px;
  box-shadow: none;
  border-left: 3px solid var(--accent);
  border-bottom: 1px solid #eee;
  transition: var(--transition);
}

.award-item:hover {
  box-shadow: var(--shadow-sm);
}

.award-year {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  white-space: nowrap;
  min-width: 45px;
}

.award-detail h5 {
  font-size: 0.95rem;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.award-detail p {
  font-size: 0.9rem;
  color: #636e72;
  margin-bottom: 0;
}

.award-link {
  color: var(--accent);
  font-size: 0.75em;
  margin-left: 0.3rem;
  opacity: 0.7;
  transition: var(--transition);
}

.award-link:hover {
  opacity: 1;
  color: var(--accent);
}

/* ============================================
   Conferences Section
   ============================================ */
.conference-card {
  background: var(--text-white);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  text-align: left;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-left: 3px solid var(--secondary);
  transition: var(--transition);
  height: 100%;
}

.conference-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.conference-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  color: var(--text-white);
}

.conference-type {
  display: inline-block;
  background: var(--accent);
  color: var(--text-dark);
  padding: 0.15rem 0.6rem;
  border-radius: 15px;
  font-size: 0.75rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.conference-card h5 {
  color: var(--primary);
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.conference-location {
  color: #636e72;
  font-size: 0.9rem;
  margin-bottom: 0.3rem;
}

.conference-date {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  color: var(--secondary);
  font-size: 0.9rem;
}

/* ============================================
   References Section
   ============================================ */
.ref-card {
  background: var(--text-white);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  box-shadow: var(--shadow-sm);
  border-top: 2px solid var(--accent);
  transition: var(--transition);
  height: 100%;
}

.ref-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.ref-card h5 {
  color: var(--primary);
  font-size: 0.95rem;
  margin-bottom: 0.3rem;
}

.ref-role {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.2rem;
}

.ref-dept {
  font-size: 0.85rem;
  color: #636e72;
  margin-bottom: 0.1rem;
}

.ref-inst {
  font-size: 0.85rem;
  color: #636e72;
  margin-bottom: 0.5rem;
}

.ref-email {
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============================================
   Contact Section
   ============================================ */
.contact-section {
  position: relative;
  background: url('../assets/hero-bg.webp') center / cover no-repeat;
  padding: 5rem 0;
}

.contact-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(26, 58, 74, 0.85);
  z-index: 0;
}

.contact-section > .container {
  position: relative;
  z-index: 1;
}

.contact-section .section-title {
  color: var(--text-white);
}

.contact-section .section-title::after {
  background: var(--accent);
}

.contact-text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.contact-affiliation {
  margin-bottom: 1.5rem;
}

.contact-dept {
  color: var(--accent);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 0.2rem;
}

.contact-inst {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.contact-emails {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'Montserrat', sans-serif;
  padding: 0.4rem 1rem;
  border: 1.5px solid var(--accent);
  border-radius: 30px;
  transition: var(--transition);
}

.contact-email:hover {
  background: var(--accent);
  color: var(--text-dark);
  transform: translateY(-2px);
}

.contact-email-sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 1.2rem;
  user-select: none;
}

.contact-profiles {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-profile-link {
  color: rgba(255, 255, 255, 0.7);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.4rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  transition: var(--transition);
}

.contact-profile-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ============================================
   Footer
   ============================================ */
.footer-section {
  background: #111;
  padding: 0.8rem 0;
}

.footer-social {
  margin-bottom: 1rem;
}

.footer-social a {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  margin: 0 0.3rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--text-dark);
  transform: translateY(-3px);
}

.footer-copy {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* ============================================
   Scroll-to-Top Button
   ============================================ */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--text-dark);
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  z-index: 999;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top-btn:hover {
  background: var(--primary);
  color: var(--text-white);
  transform: translateY(-3px);
}

/* ============================================
   Fade-in Animation
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* Tablet */
@media (max-width: 992px) {
  .hero-section {
    min-height: auto;
  }

  .hero-section .row {
    flex-direction: column;
  }

  .hero-cover-col {
    padding: 2rem 1rem 1rem;
  }

  .hero-cover-img {
    max-height: 50vh;
  }

  .hero-info-col {
    padding: 1rem 1rem 3rem;
  }

  .hero-name {
    font-size: 1.8rem;
  }

  .timeline::before {
    left: 30px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 1rem;
  }

  .timeline-item.left,
  .timeline-item.right {
    left: 0;
    text-align: left;
  }

  .timeline-item.left .timeline-dot,
  .timeline-item.right .timeline-dot {
    left: 22px;
    right: auto;
  }

  .about-sidebar {
    margin-bottom: 2rem;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .section-padding {
    padding: 2.5rem 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .hero-profile-photo {
    width: 120px;
    height: 120px;
  }

  .hero-name {
    font-size: 1.5rem;
  }

  .hero-title {
    font-size: 1.1rem;
  }

  .about-photo {
    width: 140px;
    height: 140px;
  }

  .pub-stats {
    font-size: 0.9rem;
  }

  .pub-stat-sep {
    display: none;
  }

  .pub-stats {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 50px;
  }

  .timeline-item.left .timeline-dot,
  .timeline-item.right .timeline-dot {
    left: 12px;
  }

  .timeline-content {
    padding: 1rem;
  }

  .award-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  #mainNav .navbar-brand {
    font-size: 1.3rem;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .hero-tag {
    font-size: 0.7rem;
    padding: 0.25rem 0.7rem;
  }

  .hero-cover-img {
    max-height: 35vh;
  }

  .ref-card {
    padding: 1rem;
  }
}