/* ===== VLA Interp Project Page - Custom Styles (Red Theme) ===== */

:root {
  --primary: #1a1a2e;
  --primary-light: #2d2d44;
  --accent: #c0392b;
  --accent-light: #e74c3c;
  --accent-dark: #922b21;
  --accent-warm: #e67e22;
  --text-dark: #1a1a2e;
  --text-mid: #4a4a6a;
  --text-light: #6c6c8a;
  --bg-light: #faf5f5;
  --bg-card: #ffffff;
  --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #2c1320 40%, #6b1d1d 100%);
  --gradient-accent: linear-gradient(135deg, #c0392b, #e74c3c);
  --gradient-warm: linear-gradient(135deg, #e67e22, #c0392b);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
  --radius: 12px;
}

body {
  font-family: 'Inter', 'Noto Sans', sans-serif;
  color: var(--text-dark);
}

/* ===== Navigation ===== */
.navbar {
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.navbar.is-fixed-top {
  z-index: 100;
}

.navbar-item, .navbar-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  transition: color 0.2s;
}

.navbar-item:hover, .navbar-link:hover {
  color: var(--accent-light) !important;
  background: rgba(255, 255, 255, 0.05) !important;
}

.navbar-burger span {
  background-color: white !important;
}

/* ===== Hero Section ===== */
.hero-gradient {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero-gradient::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(192, 57, 43, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-gradient::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230, 126, 34, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-gradient .title,
.hero-gradient .subtitle {
  color: white;
}

.hero-gradient .subtitle {
  color: rgba(255, 255, 255, 0.85);
}

/* ===== Publication Info ===== */
.publication-title {
  font-family: 'Google Sans', 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.publication-authors {
  font-family: 'Google Sans', 'Inter', sans-serif;
}

.publication-authors a {
  color: #f1948a !important;
  text-decoration: none;
  transition: all 0.2s;
}

.publication-authors a:hover {
  color: white !important;
  text-decoration: underline;
}

/* ===== Link Buttons ===== */
.publication-links .button {
  border-radius: 24px;
  font-weight: 600;
  padding-left: 1.5em;
  padding-right: 1.5em;
  transition: all 0.3s;
  border: none;
}

.publication-links .button.is-dark {
  background: rgba(255, 255, 255, 0.12);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.publication-links .button.is-dark:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.publication-links .button.is-accent {
  background: var(--gradient-accent);
  color: white;
  border: none;
}

.publication-links .button.is-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(192, 57, 43, 0.4);
}

.link-block {
  display: inline-block;
  margin: 4px;
}

/* ===== Section Titles ===== */
.section-title {
  font-family: 'Google Sans', 'Inter', sans-serif;
  font-weight: 700;
  color: var(--primary);
  position: relative;
  padding-bottom: 12px;
}

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

.section-title.has-text-left::after {
  left: 0;
  transform: none;
}

/* ===== Content Cards ===== */
.content-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.content-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

/* ===== Finding Cards ===== */
.finding-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  border-left: 4px solid var(--accent);
  transition: all 0.3s;
  height: 100%;
}

.finding-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.finding-card .finding-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: white;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.finding-card h4 {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.finding-card p {
  color: var(--text-mid);
  font-size: 0.9rem;
  line-height: 1.5;
}

.finding-card .evidence {
  display: inline-block;
  background: rgba(192, 57, 43, 0.08);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* ===== Model Cards ===== */
.model-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-soft);
  transition: all 0.3s;
  text-align: center;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.model-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.model-card .model-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: white;
}

.model-card .model-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.model-card .model-params {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.model-card .model-desc {
  color: var(--text-mid);
  font-size: 0.85rem;
  line-height: 1.5;
}

.model-card .model-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.75rem;
}

.badge-primary { background: rgba(192, 57, 43, 0.12); color: var(--accent); }
.badge-warm { background: rgba(230, 126, 34, 0.12); color: var(--accent-warm); }
.badge-green { background: rgba(39, 174, 96, 0.12); color: #27ae60; }

/* ===== Stats Bar ===== */
.stats-bar {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  padding: 1.5rem 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 500;
}

/* ===== Figure Section ===== */
.figure-container {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  margin-bottom: 2rem;
}

.figure-container img {
  width: 100%;
  border-radius: 8px;
}

.figure-caption {
  margin-top: 1rem;
  color: var(--text-mid);
  font-size: 0.9rem;
  line-height: 1.5;
}

.figure-caption strong {
  color: var(--primary);
}

/* ===== Action Atlas Section ===== */
.atlas-showcase {
  background: var(--gradient-hero);
  border-radius: var(--radius);
  padding: 3rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.atlas-showcase::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(192, 57, 43, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.atlas-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.atlas-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #f1948a;
}

.atlas-feature h5 {
  font-weight: 600;
  margin-bottom: 2px;
}

.atlas-feature p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* ===== Atlas Screenshot Gallery ===== */
.atlas-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.atlas-gallery img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s;
}

.atlas-gallery img:hover {
  transform: scale(1.02);
}

.atlas-gallery .atlas-img-label {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  margin-top: 0.4rem;
}

/* ===== Tabs (Setup & Tutorial) ===== */
.tabs-container {
  border-bottom: 2px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 2rem;
}

.tab-btn {
  background: none;
  border: none;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  position: relative;
  transition: all 0.3s;
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  color: var(--accent);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Code Blocks ===== */
.code-block {
  background: #1e1e2e;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #cdd6f4;
  position: relative;
  margin: 1rem 0;
}

.code-block .comment { color: #6c7086; }
.code-block .command { color: #89b4fa; }
.code-block .flag { color: #f9e2af; }
.code-block .string { color: #a6e3a1; }

.code-block-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background: #f38ba8; }
.code-dot.yellow { background: #f9e2af; }
.code-dot.green { background: #a6e3a1; }

/* ===== Step Cards (Tutorial) ===== */
.step-card {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.step-content p {
  color: var(--text-mid);
  line-height: 1.6;
}

/* ===== Info Boxes ===== */
.info-box {
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin: 1rem 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.info-box.tip {
  background: rgba(0, 200, 83, 0.06);
  border-left: 4px solid #00c853;
}

.info-box.warning {
  background: rgba(192, 57, 43, 0.06);
  border-left: 4px solid var(--accent);
}

.info-box.note {
  background: rgba(41, 128, 185, 0.06);
  border-left: 4px solid #2980b9;
}

.info-box-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ===== Results Table ===== */
.results-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.results-table thead {
  background: var(--primary);
  color: white;
}

.results-table th {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: left;
}

.results-table td {
  padding: 12px 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.results-table tbody tr:hover {
  background: rgba(192, 57, 43, 0.04);
}

.results-table tbody tr:last-child td {
  border-bottom: none;
}

/* ===== BibTeX Block ===== */
.bibtex-block {
  background: #f8f9fa;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 1.5rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  position: relative;
  overflow-x: auto;
}

.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}

.copy-btn:hover {
  background: var(--accent);
}

/* ===== Footer ===== */
.footer-custom {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0;
}

.footer-custom a {
  color: #f1948a;
  transition: color 0.2s;
}

.footer-custom a:hover {
  color: white;
}

/* ===== Responsive ===== */
@media screen and (max-width: 768px) {
  .stats-bar {
    gap: 1rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .hero-gradient .title.is-1 {
    font-size: 1.8rem !important;
  }

  .atlas-showcase {
    padding: 2rem 1.5rem;
  }

  .atlas-gallery {
    grid-template-columns: 1fr;
  }

  .step-card {
    flex-direction: column;
    gap: 0.75rem;
  }

  .finding-card {
    margin-bottom: 1rem;
  }
}

/* ===== Section Backgrounds ===== */
.section-alt {
  background: var(--bg-light);
}

/* ===== Video Embed ===== */
.publication-video {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.publication-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ===== Coming Soon Badge ===== */
.coming-soon {
  display: inline-block;
  background: var(--gradient-warm);
  color: white;
  padding: 3px 12px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(192, 57, 43, 0.3); }
  50% { box-shadow: 0 0 12px 4px rgba(192, 57, 43, 0.15); }
}

/* ===== Robot Icon Animation ===== */
.robot-container {
  display: inline-block;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  10% { transform: rotate(-15deg); }
  20% { transform: rotate(12deg); }
  30% { transform: rotate(-12deg); }
  40% { transform: rotate(10deg); }
  50% { transform: rotate(-8deg); }
  60% { transform: rotate(5deg); }
  70% { transform: rotate(-3deg); }
  80%, 100% { transform: rotate(0deg); }
}

@keyframes blink {
  0%, 90%, 100% { opacity: 0.8; }
  95% { opacity: 0.2; }
}

@keyframes eyePulse {
  0%, 100% { filter: drop-shadow(0 0 2px #e74c3c); }
  50% { filter: drop-shadow(0 0 6px #e74c3c); }
}

.robot-arm-wave {
  transform-origin: 44px 36px;
  animation: wave 2s ease-in-out 0.3s 1;
}

.robot-antenna-blink {
  animation: blink 3s ease-in-out infinite;
}

.robot-eye {
  animation: eyePulse 2s ease-in-out infinite;
}

.robot-wave:hover .robot-arm-wave {
  animation: wave 1s ease-in-out infinite;
}

.robot-wave {
  cursor: pointer;
  transition: transform 0.2s;
}

.robot-wave:hover {
  transform: scale(1.1);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Offset for fixed navbar */
section[id] {
  scroll-margin-top: 60px;
}