/* ==========================================================================
   Modern Monospace Terminal Academic Portfolio (Color Edition)
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=VT323&display=swap');

:root {
  /* Terminal Color Palette (Obsidian / Dracula Inspired) */
  --bg-primary: #0f111a;
  /* Deep Obsidian Space Blue */
  --bg-secondary: #181b28;
  /* Sleek Slate-Navy Panel */
  --text-primary: #cdd6f4;
  /* Crisp Warm Off-White */
  --text-secondary: #89b4fa;
  /* Electric Cobalt / Light Blue */
  --text-muted: #939ab7;
  /* Muted Steel Gray */
  --color-accent: #00e5ff;
  /* Vivid Cyan Accent */
  --color-highlight: #c084fc;
  /* Soft Lavender */
  --color-border: #2e354f;
  /* Slate Navy Wire Border */
  --color-border-active: #00e5ff;

  /* Typography */
  --font-heading: 'VT323', monospace;
  --font-body: 'Share Tech Mono', monospace;

  /* Spacing Scale */
  --max-width: 1000px;
  --header-height: 90px;

  /* Modern Glow Effects */
  --glow-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
  --glow-text: 0 0 3px rgba(0, 229, 255, 0.4);
}

/* Base Setup */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important;
  /* Sharp retro-modern corners */
}

/* Faint Static Scanline Overlay (very subtle, no flicker) */
body::after {
  content: " ";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%);
  z-index: 9999;
  background-size: 100% 4px;
  pointer-events: none;
}

html {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  padding: 20px;
  border: 4px double var(--color-border);
  position: relative;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 12px;
  background: var(--bg-primary);
  border-left: 1px solid var(--color-border);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: normal;
  color: var(--color-accent);
  letter-spacing: 1px;
}

h1 {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  text-shadow: var(--glow-text);
}

h2 {
  font-size: 2.2rem;
  border: 1px dashed var(--color-border);
  padding: 0.5rem 1rem;
  margin-bottom: 1.5rem;
  background-color: rgba(46, 53, 79, 0.15);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

h2::before {
  content: ">";
  color: var(--color-highlight);
}

h3 {
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-accent);
}

a:hover {
  background-color: var(--color-accent);
  color: var(--bg-primary);
  text-shadow: none;
}

/* Header & Navigation */
header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.5rem;
  margin-bottom: 2.5rem;
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.logo {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  color: var(--text-primary);
  border: none;
  display: block;
}

.logo:hover {
  background: none;
  color: var(--color-accent);
}

nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-primary);
  padding: 0.4rem 1.2rem;
  border: 1px solid var(--color-border);
  background-color: var(--bg-primary);
  cursor: pointer;
}

.nav-link:hover {
  background-color: rgba(0, 229, 255, 0.05);
  border-color: var(--color-accent);
}

.nav-link.active {
  background-color: var(--color-accent);
  color: var(--bg-primary);
  border-color: var(--color-accent);
  text-shadow: none;
  font-weight: bold;
}

/* Main Area */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.view-section {
  display: none;
  animation: crt-turn-on 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.view-section.active {
  display: block;
}

/* Bio Layout - Streamlined */
.bio-grid {
  display: grid;
  grid-template-columns: 1.8fr 2.2fr;
  gap: 3.5rem;
  align-items: center;
}

.bio-image-container {
  height: 100%;
}

.bio-image-wrapper {
  border: 2px solid var(--color-border);
  padding: 6px;
  background-color: var(--bg-secondary);
  box-shadow: var(--glow-shadow);
  aspect-ratio: 1 / 1;
  width: 100%;
}

.bio-image {
  width: 100%;
  height: 100%;
  display: block;
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.bio-content h1 {
  font-size: 3.2rem;
  margin-bottom: 0.2rem;
}

.bio-subtitle {
  font-size: 1.35rem;
  color: var(--color-highlight);
  margin-bottom: 1.5rem;
}

.bio-subtitle::before {
  content: "[ ";
}

.bio-subtitle::after {
  content: " ]";
}

/* Research Listing */
.research-intro {
  margin-bottom: 2rem;
}

.filter-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-primary);
  border: 1px solid var(--color-border);
  color: var(--text-primary);
  padding: 0.3rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
}

.filter-btn:hover {
  border-color: var(--color-accent);
}

.filter-btn.active {
  background-color: var(--color-accent);
  color: var(--bg-primary);
  border-color: var(--color-accent);
  text-shadow: none;
}

.pub-card {
  border: 1px solid var(--color-border);
  background-color: var(--bg-secondary);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.pub-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--glow-shadow);
}

.pub-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
}

.pub-title {
  font-family: var(--font-body);
  font-size: 1.3rem;
  color: var(--text-primary);
  font-weight: bold;
}

.pub-type {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  padding: 0.1rem 0.5rem;
  color: var(--color-highlight);
  white-space: nowrap;
}

.pub-authors {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.pub-authors .me {
  text-decoration: underline;
  color: var(--color-accent);
}

.pub-journal {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.pub-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.pub-links a {
  border-bottom: 1px solid transparent;
}

.pub-links a:hover {
  border-bottom-color: var(--bg-primary);
}

.abstract-toggle {
  background: none;
  border: 1px dashed var(--color-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.25rem 0.75rem;
  cursor: pointer;
  margin-top: 0.5rem;
}

.abstract-toggle:hover {
  border-color: var(--color-accent);
}

.abstract-content {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  border-left: 2px solid var(--color-accent);
  background-color: var(--bg-primary);
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* CV Layout */
.cv-actions {
  display: flex;
  margin-bottom: 2rem;
}

.cv-section {
  margin-bottom: 3rem;
  border: 1px solid var(--color-border);
  padding: 2rem;
  background-color: var(--bg-secondary);
}

.cv-section-title {
  border: none;
  padding: 0;
  margin-bottom: 1.5rem;
  background-color: transparent;
  color: var(--color-accent);
}

.cv-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.cv-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.5rem;
}

.cv-date {
  font-family: var(--font-body);
  color: var(--color-highlight);
  font-weight: bold;
}

.cv-date::before {
  content: "[ ";
}

.cv-date::after {
  content: " ]";
}

.cv-details h3 {
  font-family: var(--font-body);
  font-size: 1.25rem;
  color: var(--text-primary);
  font-weight: bold;
}

.cv-sub {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.cv-desc {
  color: var(--text-muted);
  margin-bottom: 0;
}

.cv-bullets {
  margin-top: 0.5rem;
  list-style: none;
  padding-left: 1rem;
}

.cv-bullets li::before {
  content: "* ";
  color: var(--color-accent);
  margin-right: 0.5rem;
}

.cv-bullets li {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

/* Contact layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  border: 1px solid var(--color-border);
  padding: 3rem;
  background-color: var(--bg-secondary);
  min-height: 500px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  color: var(--color-accent);
  font-size: 1.1rem;
  width: 25px;
}

.contact-text h3 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-primary);
}

.contact-text p {
  color: var(--text-muted);
  margin-bottom: 0;
}

.social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.social-icon {
  border: 1px solid var(--color-border);
  padding: 0.4rem 0.8rem;
  font-size: 0.9rem;
}

.social-icon:hover {
  background-color: var(--color-accent);
  color: var(--bg-primary);
  border-color: var(--color-accent);
}

/* Form Panel */
.contact-form-container {
  border: 1px solid var(--color-border);
  padding: 2rem;
  background-color: var(--bg-secondary);
}

.contact-form h3 {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-group label::before {
  content: "> ";
  color: var(--color-accent);
}

.form-control {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--color-border);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 5px rgba(0, 229, 255, 0.3);
}

textarea.form-control {
  min-height: 120px;
}

.btn {
  display: inline-block;
  background-color: var(--bg-primary);
  border: 1px solid var(--color-border);
  color: var(--text-primary);
  padding: 0.6rem 1.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--color-accent);
  color: var(--bg-primary);
  border-color: var(--color-accent);
  text-shadow: none;
}

.btn-primary {
  border-color: var(--color-accent);
}

.form-status {
  margin-top: 1.25rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  display: block;
  background-color: rgba(0, 229, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--color-accent);
}

.form-status.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border-color: #ef4444;
}

/* Footer panel */
footer {
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

.footer-links a {
  border: none;
}

/* Turn-On Animation */
@keyframes crt-turn-on {
  0% {
    transform: scaleY(0.01) scaleX(0);
    opacity: 0.1;
  }

  50% {
    transform: scaleY(0.01) scaleX(1);
    opacity: 0.8;
  }

  100% {
    transform: scaleY(1) scaleX(1);
    opacity: 1;
  }
}

/* Responsive Styles */
@media (max-width: 850px) {
  .bio-grid {
    grid-template-columns: 1.5fr;
    gap: 2.5rem;
  }

  .bio-image-wrapper {
    max-width: 380px;
    margin: 0 auto;
  }

  .contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
  }

  .header-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 2.2rem;
  }

  .logo {
    font-size: 2rem;
  }

  .cv-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  nav {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }

  .nav-link {
    width: 100%;
    text-align: center;
  }
}