/* Page */
body {
  background: #ffffff;
}

.vispro-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1rem 1rem;
}

/* Header */
.hero {
  max-width: 860px;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.hero h1 {
  margin: 0 0 0.9rem;
  color: var(--text);
  font-size: 2.5rem;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.hero .subtitle {
  margin-bottom: 1.3rem;
  color: var(--accent);
  font-size: 1.15rem;
}

.hero .author {
  margin-bottom: 0.25rem;
  font-size: 17px;
}

.hero .affiliation {
  margin-bottom: 1.6rem;
  color: #6b7280;
  font-size: 15px;
  line-height: 1.6;
}

/* Resource Links */
.resource-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.resource-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1rem;
  border: 1px solid #2d3748;
  border-radius: 999px;
  background: #2d3748;
  color: #ffffff;
  font-size: 14.5px;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.resource-links a:hover {
  border-color: #4a5568;
  background: #4a5568;
  color: #ffffff;
}

/* Media */
.hero-media {
  max-width: 860px;
  margin: 2rem auto 0;
}

.media-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 250px;
  padding: 0.5rem;
  /* border: 1px dashed #a0aec0; */
  border-radius: 4px;
  background: #ffffff;
  color: #718096;
  font-family: monospace;
  font-size: 14px;
  line-height: 1.6;
  text-align: center;
}

.media-placeholder.small {
  min-height: 180px;
}

.media-placeholder img {
  display: block;
  width: 120%;
  height: auto;
  border-radius: 4px;
}

/* Sections */
.research-section {
  margin: 3.8rem 0;
}

.research-section h2 {
  margin: 0 0 1.5rem;
  border: 0;
  color: var(--text);
  font-size: 1.65rem;
  text-align: center;
}

.research-section > p {
  max-width: 790px;
  margin: 0.6rem auto 1rem;
  font-size: 16px;
  line-height: 1.75;
  text-align: justify;
}

.section-intro {
  max-width: 760px !important;
  margin-bottom: 1.6rem !important;
  color: #4a5568;
  text-align: center;
}

/* Why Visual Prompting */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.8rem 0;
}

.problem-card {
  padding: 1.3rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  background: #ffffff;
  text-align: center;
}

.problem-card i {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--accent);
  font-size: 1.4rem;
}

.problem-card strong {
  display: block;
  margin-bottom: 0.4rem;
}

.problem-card span {
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
}

.problem-card.highlight {
  border-color: #2d3748;
  background: #2d3748;
}

.problem-card.highlight i,
.problem-card.highlight strong {
  color: #ffffff;
}

.problem-card.highlight span {
  color: #e2e8f0;
}

/* Method */
.method-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.8rem 0;
}

.method-box {
  flex: 1;
  min-width: 135px;
  max-width: 170px;
  padding: 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  background: #ffffff;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}

.method-box strong {
  display: block;
  margin-bottom: 0.3rem;
}

.arrow {
  display: flex;
  align-items: center;
  color: #718096;
  font-size: 18px;
}

/* Visual Prompting */
.prompt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 650px;
  margin: 1.5rem auto 2rem;
}

.prompt-card {
  padding: 1.2rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  background: #f8f9fa;
  text-align: center;
}

.prompt-card strong {
  display: block;
  margin-bottom: 0.35rem;
}

.prompt-card span {
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
}

.prompt-icon {
  width: 42px;
  height: 32px;
  margin: 0 auto 0.7rem;
  border: 3px solid;
}

.prompt-card.pick .prompt-icon {
  border-color: #16a34a;
}

.prompt-card.place .prompt-icon {
  border-color: #dc2626;
}

/* Progressive Task Complexity */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.7rem;
}

.scenario-card {
  padding: 1.2rem 1rem;
  border-top: 3px solid var(--accent);
  background: #f8f9fa;
  text-align: center;
}

.scenario-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin: 0 auto 0.65rem;
  border-radius: 50%;
  background: #2d3748;
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
}

.scenario-card strong {
  display: block;
  margin-bottom: 0.4rem;
}

.scenario-card p {
  margin: 0;
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
}

/* Results */
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.8rem 0;
}

.result-card {
  padding: 1.3rem 1rem;
  border: 1px solid #2d3748;
  border-radius: 4px;
  background: #2d3748;
  text-align: center;
}

.result-number {
  display: block;
  margin-bottom: 0.35rem;
  color: #ffffff;
  font-size: 1.8rem;
  font-weight: 600;
}

.result-label {
  color: #e2e8f0;
  font-size: 14px;
  line-height: 1.5;
}

.result-note {
  margin-top: 1rem !important;
  color: #6b7280;
  font-size: 14px !important;
  text-align: center;
}

.inline-arrow {
  margin: 0 0.25rem;
  font-size: 0.75em;
}

/* Failure Analysis */
.failure-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.failure-card {
  padding: 1.2rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  background: #ffffff;
  text-align: center;
}

.failure-card i {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--accent);
  font-size: 1.35rem;
}

.failure-card strong {
  display: block;
  margin-bottom: 0.4rem;
}

.failure-card span {
  color: #6b7280;
  font-size: 14px;
  line-height: 1.5;
}

/* Takeaway */
.takeaway {
  max-width: 790px;
  margin: 4rem auto 0;
  padding: 1.5rem 1.7rem;
  border-left: 4px solid var(--accent);
  background: #f8f9fa;
  line-height: 1.75;
}

.future-work {
  margin-top: 1.3rem !important;
}

/* BibTeX */
.bibtex-box {
  max-width: 790px;
  margin: 0 auto;
  padding: 1.2rem 1.4rem;
  border-radius: 4px;
  background: #f8f9fa;
  overflow-x: auto;
}

.bibtex-box pre {
  margin: 0;
  white-space: pre;
}

.bibtex-box code {
  color: #2d3748;
  font-family: monospace;
  font-size: 14px;
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 768px) {
  .visprompt-page {
    padding: 1.5rem 1rem 2.5rem;
  }

  .hero {
    margin-bottom: 2.8rem;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .hero .subtitle {
    font-size: 1rem;
  }

  .research-section {
    margin: 3rem 0;
  }

  .research-section h2 {
    font-size: 1.45rem;
  }

  .problem-grid,
  .prompt-grid,
  .scenario-grid,
  .result-grid,
  .failure-grid {
    grid-template-columns: 1fr;
  }

  .method-box {
    max-width: none;
  }

  .arrow {
    width: 100%;
    height: 20px;
    justify-content: center;
    transform: rotate(90deg);
  }
}