/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition-med);
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 0;
}

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

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

.logo-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  line-height: 1;
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
  transition: var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--glow-cyan);
  transition: width var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

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

/* Hamburger */
.nav-toggle {
  display: none;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-fast);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
}

.hamburger::before { top: -8px; }
.hamburger::after  { top: 8px; }

.nav-toggle.active .hamburger {
  background: transparent;
}

.nav-toggle.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
  background: var(--accent-cyan);
}

.nav-toggle.active .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
  background: var(--accent-cyan);
}

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
    align-items: center;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-med);
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 1.3rem;
  }
}

/* ========== HERO COMPONENTS ========== */
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-title {
  margin-bottom: 24px;
}

.title-line {
  display: block;
}

.hero-tagline {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  min-height: 1.8em;
}

.typed-text {
  color: var(--accent-cyan);
  font-weight: 600;
}

.typing-cursor {
  color: var(--accent-cyan);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 28px;
  border-radius: 8px;
  transition: var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 15px var(--glow-soft), 0 0 30px rgba(0, 240, 255, 0.08);
}

.btn-primary:hover {
  box-shadow: 0 0 20px var(--glow-cyan), 0 0 40px var(--glow-soft);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  background: var(--glass-bg);
}

.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--glow-soft);
  transform: translateY(-2px);
}

.btn-small {
  font-size: 0.8rem;
  padding: 6px 16px;
  border: 1px solid var(--glass-border);
  color: var(--accent-cyan);
  border-radius: 6px;
}

.btn-small:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
}

.btn-full {
  width: 100%;
}

/* ========== GLASS CARD ========== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--card-radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
              inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: var(--transition-med);
}

.glass-card:hover {
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3),
              0 0 20px var(--glow-soft),
              inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

/* ========== MEMBER CARD ========== */
.member-card {
  padding: 32px 24px;
  text-align: center;
}

.member-photo-wrapper {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 24px;
}

.photo-border {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: conic-gradient(
    var(--accent-cyan),
    var(--accent-blue),
    var(--accent-purple),
    var(--accent-blue),
    var(--accent-cyan)
  );
  animation: borderRotate 6s linear infinite;
}

.member-photo {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg-primary);
  z-index: 1;
}

.member-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.member-name {
  font-size: 1.15rem;
  color: var(--text-primary);
}

.member-role {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.member-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.member-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
}

.icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.icon-link:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--glow-soft);
}

.icon-link svg {
  width: 18px;
  height: 18px;
}

/* ========== RESEARCH CARD ========== */
.research-card {
  padding: 32px;
}

.research-icon {
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.research-card h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.research-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ========== PUBLICATION ITEM ========== */
.publication-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border-left: 3px solid var(--accent-cyan);
}

.publication-item + .publication-item {
  margin-top: 12px;
}

.pub-year {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  padding: 4px 12px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.pub-details {
  flex: 1;
  min-width: 0;
}

.pub-title {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pub-authors,
.pub-venue {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.pub-venue {
  font-style: italic;
  opacity: 0.8;
}

/* ========== PROJECT CARD ========== */
.project-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.project-icon {
  color: var(--accent-cyan);
}

.project-links {
  display: flex;
  gap: 12px;
}

.project-links a {
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

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

.project-links svg {
  display: block;
}

.project-title {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.project-desc {
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  padding: 3px 10px;
  border-radius: 100px;
  transition: var(--transition-fast);
}

.glass-card:hover .tag {
  color: var(--accent-cyan);
  border-color: rgba(0, 240, 255, 0.3);
}

/* ========== CONTACT ========== */
.contact-info h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.contact-info > p {
  margin-bottom: 32px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.contact-detail svg {
  flex-shrink: 0;
  color: var(--accent-cyan);
  margin-top: 3px;
}

.contact-detail a {
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.contact-detail a:hover {
  color: var(--accent-cyan);
}

.contact-socials {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--glow-soft);
  transform: translateY(-2px);
}

/* ========== CONTACT FORM ========== */
.contact-form {
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(10, 14, 26, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--glow-soft);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--glass-border);
  padding: 40px 0 24px;
  position: relative;
  z-index: 1;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent-gradient);
  opacity: 0.4;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand .logo-text {
  font-size: 1.2rem;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Publication responsiveness */
@media (max-width: 600px) {
  .publication-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* ========== PI CARD ========== */
.pi-card {
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 700px;
  margin: 0 auto 48px;
}

.pi-card .member-photo-wrapper {
  width: 160px;
  height: 160px;
  flex-shrink: 0;
  margin: 0;
}

.pi-card .member-photo {
  width: 160px;
  height: 160px;
}

.pi-card .member-info {
  text-align: left;
  align-items: flex-start;
}

.pi-card .member-name {
  font-size: 1.4rem;
}

.pi-card .member-links {
  justify-content: flex-start;
}

@media (max-width: 600px) {
  .pi-card {
    flex-direction: column;
    text-align: center;
  }

  .pi-card .member-info {
    text-align: center;
    align-items: center;
  }

  .pi-card .member-links {
    justify-content: center;
  }
}

/* ========== TEAM SUBSECTION ========== */
.team-subsection-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}

.team-subsection-title .accent {
  color: var(--accent-cyan);
}

/* ========== BLOG CARD ========== */
.blog-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.blog-icon {
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.blog-card h3 {
  margin-bottom: 12px;
  color: var(--text-primary);
}

.blog-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  flex: 1;
}

.blog-card .blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

/* ========== DEADLINE CARD ========== */
.deadline-card {
  padding: 28px;
  text-align: center;
}

.deadline-card.deadline-passed {
  opacity: 0.35;
}

.deadline-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 4px;
  display: block;
}

.deadline-name:hover {
  text-shadow: 0 0 10px var(--glow-soft);
}

.deadline-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.deadline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.7;
  margin-bottom: 20px;
}

.countdown-timer {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 56px;
  padding: 10px 8px;
  background: rgba(0, 240, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
}

.countdown-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1.2;
}

.countdown-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-top: 4px;
}

.deadline-passed .countdown-value {
  color: var(--text-secondary);
}

/* ========== ALUMNI GRID ========== */
.alumni-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.alumni-card {
  padding: 20px;
  text-align: center;
}

.alumni-card .member-name {
  font-size: 1rem;
}

.alumni-card .member-role {
  font-size: 0.7rem;
}

/* ========== BLOG POST PAGE ========== */
.blog-post-hero {
  padding: 160px 0 60px;
  position: relative;
  z-index: 1;
}

.blog-post-hero .container {
  max-width: 800px;
}

.blog-post-hero .blog-post-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.blog-post-hero h1 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.2;
}

.blog-post-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.blog-post-content {
  padding: 60px 0 80px;
  position: relative;
  z-index: 1;
}

.blog-post-content .container {
  max-width: 800px;
}

.blog-post-content h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin: 48px 0 16px;
  letter-spacing: 0.04em;
}

.blog-post-content h2:first-child {
  margin-top: 0;
}

.blog-post-content h3 {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 32px 0 12px;
}

.blog-post-content p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.blog-post-content ul,
.blog-post-content ol {
  margin: 0 0 20px 24px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-family: var(--font-body);
  font-size: 1.05rem;
}

.blog-post-content li {
  margin-bottom: 8px;
}

.blog-post-content li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.blog-post-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.blog-post-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
}

.blog-post-content .info-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--accent-cyan);
  border-radius: var(--card-radius);
  padding: 24px 28px;
  margin: 32px 0;
}

.blog-post-content .info-box p {
  margin-bottom: 0;
  font-size: 1rem;
}

.blog-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  transition: var(--transition-fast);
  margin-bottom: 32px;
}

.blog-back:hover {
  color: var(--accent-cyan);
}

.blog-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
}

.blog-card-link .glass-card {
  width: 100%;
  cursor: pointer;
}

.blog-card-link .tag {
  color: var(--text-secondary);
}

.blog-card-link:hover .tag {
  color: var(--accent-cyan);
  border-color: rgba(0, 240, 255, 0.3);
}

@media (max-width: 600px) {
  .blog-post-hero h1 {
    font-size: 1.6rem;
  }

  .blog-post-content ul,
  .blog-post-content ol {
    margin-left: 16px;
  }
}