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

:root {
  --bg:        #0a0e14;
  --surface:   #111820;
  --border:    #1e2a3a;
  --text:      #c5cdd8;
  --text-dim:  #5c6a7a;
  --accent:    #3ddc84;
  --accent2:   #00bcd4;
  --link:      #64b5f6;
  --link-hover:#bb86fc;
  --card-bg:   #0d1218;
  --title-bg:  #161d27;
  --radius:    8px;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 24px 16px 60px;
}

/* ── Scanlines ────────────────────────────────────────── */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

/* ── Terminal Window ──────────────────────────────────── */
.terminal-window {
  width: 100%;
  max-width: 900px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow:
    0 0 0 1px rgba(61,220,132,0.05),
    0 4px 30px rgba(0,0,0,0.5),
    0 0 80px rgba(61,220,132,0.03);
}

/* ── Title Bar ────────────────────────────────────────── */
.title-bar {
  background: var(--title-bg);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.title-bar-buttons {
  display: flex;
  gap: 8px;
}

.title-bar-buttons span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.btn-close    { background: #ff5f57; }
.btn-minimize { background: #ffbd2e; }
.btn-maximize { background: #28c940; }

.title-bar-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  flex: 1;
  text-align: center;
  margin-right: 52px; /* offset for buttons centering */
}

/* ── Terminal Body ────────────────────────────────────── */
.terminal-body {
  padding: 32px 36px;
}

/* ── Prompt Lines ─────────────────────────────────────── */
.prompt-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.prompt {
  color: var(--accent);
  font-weight: 700;
}

.command {
  color: var(--accent2);
}

.typing::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

.blink-cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* ── Hero Section ─────────────────────────────────────── */
.hero {
  display: flex;
  gap: 36px;
  align-items: flex-start;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.tagline {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 18px;
  opacity: 0.9;
}

.hero-text p {
  font-size: 0.92rem;
  margin-bottom: 12px;
  color: var(--text);
}

.hero-text p strong {
  color: #fff;
  font-weight: 600;
}

.hero-photo {
  flex-shrink: 0;
  width: 170px;
  height: 170px;
  margin-top: 40px;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.hero-photo img:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(61,220,132,0.15);
}

/* ── Links / Nav ──────────────────────────────────────── */
a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--link-hover);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}

.links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  transition: all 0.2s ease;
}

.links a svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.links a:hover {
  border-color: var(--accent);
  background: rgba(61,220,132,0.06);
  color: #fff;
  box-shadow: 0 0 12px rgba(61,220,132,0.1);
}

/* ── Divider ──────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 36px 0;
}

/* ── Research Section ─────────────────────────────────── */
.research h2 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}

/* ── Paper Grid ───────────────────────────────────────── */
.paper-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Paper Groups & Show More ─────────────────────────── */
.paper-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.paper-group.hidden {
  display: none;
}

.paper-group.revealing .paper-card {
  animation: fadeSlideIn 0.4s ease both;
}

.paper-group.revealing .paper-card:nth-child(1) { animation-delay: 0s; }
.paper-group.revealing .paper-card:nth-child(2) { animation-delay: 0.07s; }
.paper-group.revealing .paper-card:nth-child(3) { animation-delay: 0.14s; }
.paper-group.revealing .paper-card:nth-child(4) { animation-delay: 0.21s; }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.show-more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.25s ease;
}

.show-more-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(61,220,132,0.04);
  box-shadow: 0 0 16px rgba(61,220,132,0.06);
  transform: translateY(-1px);
}

.show-more-btn:active {
  transform: translateY(0);
}

.show-more-btn .show-more-prompt {
  color: var(--accent);
  font-weight: 700;
}

.show-more-btn .show-more-count {
  opacity: 0.5;
}

.show-more-btn svg {
  transition: transform 0.2s ease;
}

.show-more-btn:hover svg {
  transform: translateY(2px);
}

.show-more-btn.hidden {
  display: none;
}

.paper-card {
  display: flex;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card-bg);
  transition: all 0.25s ease;
}

.paper-card:hover {
  border-color: rgba(61,220,132,0.3);
  background: rgba(61,220,132,0.02);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  transform: translateY(-1px);
}

/* Paper image - contained, not stretched */
.paper-img {
  flex-shrink: 0;
  width: 200px;
  height: 130px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.paper-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}

.paper-info {
  flex: 1;
  min-width: 0;
}

.paper-info h3 {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.paper-info h3 a {
  color: #e0e6ed;
  transition: color 0.2s ease;
}

.paper-info h3 a:hover {
  color: var(--accent);
}

.authors {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 8px;
}

.authors strong {
  color: var(--text);
  font-weight: 600;
}

.venue {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(61,220,132,0.08);
  color: var(--accent);
  border: 1px solid rgba(61,220,132,0.15);
}

/* ── Footer ───────────────────────────────────────────── */
footer {
  padding-top: 8px;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 700px) {
  .terminal-body {
    padding: 20px 18px;
  }

  .hero {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
  }

  .hero-photo {
    margin-top: 0;
    width: 130px;
    height: 130px;
  }

  .links {
    justify-content: center;
  }

  .paper-card {
    flex-direction: column;
  }

  .paper-img {
    width: 100%;
    height: 180px;
  }

  .title-bar-text {
    margin-right: 0;
  }
}

@media (max-width: 480px) {
  html { font-size: 14px; }

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

  .paper-img {
    height: 140px;
  }
}