:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(16, 23, 41, 0.6);
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --accent-primary: #06b6d4; /* Cyan */
  --accent-secondary: #3b82f6; /* Blue */
  --accent-highlight: #f59e0b; /* Amber */
  --font-heading: "Outfit", sans-serif;
  --font-body: "Inter", sans-serif;
  --border-glass: rgba(255, 255, 255, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative; /* For pseudo-bg */
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: url("assets/CRF_00005.jpg") no-repeat center center/cover;
  /* filter: blur(4px) brightness(0.4); */
  filter: blur(var(--bg-blur, 0px)) brightness(0.4);
  z-index: -2; /* Behind everything */
}

/* Fluid Background Blobs */
.background-glob {
  position: fixed;
  top: -20%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(
    circle,
    rgba(6, 182, 212, 0.15) 0%,
    rgba(0, 0, 0, 0) 70%
  );
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
  animation: float 20s infinite alternate;
}

.glob-2 {
  top: auto;
  bottom: -20%;
  left: auto;
  right: -10%;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.15) 0%,
    rgba(0, 0, 0, 0) 70%
  );
  animation-delay: -5s;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(50px, 50px) scale(1.1);
  }
}

/* Glassmorphism Utilities */
.glass-nav {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
}

.glass-card,
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Typography */
h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 700;
}

.gradient-text {
  background: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  -webkit-background-clip: text;
  background-clip: text; /* Fix lint ID: 56376bf9-c6d3-4ebb-88d9-eb1a1ffac16b */
  -webkit-text-fill-color: transparent;
}

/* Features Strip (Replacement for Bento) */
.features-strip {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: 600px; /* Reduced from 800px */
}

/* Make transparent but layout strictly */
.feature-card {
  background: rgba(16, 23, 41, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem; /* Reduced from 1.5rem */
  border-radius: 16px;
  backdrop-filter: blur(5px);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateX(-5px);
  border-color: var(--accent-primary);
}

/* Specific tighter padding for Real Env and Onboarding per request */
.features-strip > .feature-card:nth-child(2),
.features-strip > .feature-card:nth-child(3) {
  padding-bottom: 0.8rem;
}

.feature-card h4 {
  color: var(--accent-primary);
  margin-bottom: 0.75rem; /* Reduced from 1rem */
  font-size: 1rem; /* Reduced from 1.1rem */
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.5rem;
}

/* 3D Models Row */
.model-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap; /* Force single line */
  overflow: hidden; /* Disable scroll */
}
.model-row img {
  height: 100px; /* Reduced from 120px */
  max-width: 100px; /* Reduced from 120px */
  width: auto;
  filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.6));
  transition: transform 0.3s;
}
.model-row img:hover {
  transform: scale(1.3) rotate(10deg);
}

/* Real Env Stacked Grid */
.real-grid-stacked {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* Changed to 2 columns */
  gap: 1rem;
}

/* Stack layers - HIDDEN per request (but structure kept for animation logic) */
.stack-bg,
.stack-mid {
  display: none;
}

.onboarding-card .real-grid-stacked {
  /* Ensure onboarding grid respects the gap */
}

.stacked-card {
  position: relative;
  text-align: center;
}

.card-stack {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3; /* Matches Real Env images (640x480) */
  margin-bottom: 0.5rem;
}

/* Onboarding specific: Match GIF Aspect Ratio */
.onboarding-card .card-stack {
  height: auto;
  aspect-ratio: 4 / 3; /* Matches generated 640x480 GIFs */
}

/* Updated Wrapper Style for clean single image look */
.stack-front-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 3;
  border-radius: 12px; /* Smoother rounds */
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); /* Softer shadow */
  transition: transform 0.3s ease;
  /* Removed background since we now fill with image */
}

.stacked-card:hover .stack-front-wrapper {
  transform: translateY(-2px); /* Subtle lift */
}

.stack-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* Fill the container perfectly */
  border-radius: 12px;
}

/* Slide Entry/Exit Classes */
.slide-enter {
  transform: translateX(100%);
  transition: transform 0.8s ease-in-out;
}

.slide-enter-active {
  transform: translateX(0);
}

.slide-exit {
  transform: translateX(0);
  transition: transform 0.8s ease-in-out;
  z-index: 1; /* Below the entering one? or Above? Slide left usually means follow. */
}

/* If sliding LEFT: New comes from Right (100%), Old goes Left (-100%) */
.slide-in-from-right {
  transform: translateX(100%);
  z-index: 10;
}
.slide-out-to-left {
  transform: translateX(-100%);
  z-index: 9;
}

.animating {
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Onboarding GIF */
.gif-wrapper {
  position: relative;
  width: 100%;
  height: 200px; /* Reduced from 250px */
  border-radius: 12px;
  overflow: hidden;
}
.gif-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.live-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--accent-highlight);
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
  100% {
    opacity: 1;
  }
}

/* Navigation */
header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  padding-top: 80px; /* offset for fixed header */
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.conference-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-primary);
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  border: 1px solid rgba(6, 182, 212, 0.2);
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.authors {
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.affiliation {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  color: var(--text-muted);
  font-size: 1.1rem;
  font-weight: 500;
}

.affiliation-logo {
  height: 80px; /* Increased size per request */
  width: auto;
  filter: invert(1); /* Make white for dark background */
}

.author {
  display: inline-block;
  margin-right: 0.5rem;
  font-weight: 500;
}

.author::after {
  content: ",";
}
.author:last-child::after {
  content: "";
}

.action-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.5);
}

.btn-primary {
  background: var(--accent-primary);
  color: #000;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border: 1px solid var(--border-glass);
}

.btn-accent {
  background: var(--accent-highlight);
  color: #000;
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.hero-card {
  padding: 1rem;
  width: 100%;
  max-width: 500px;
  height: 400px; /* Fixed height for placeholder */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* About Section */
.section-title {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--accent-primary);
  border-radius: 2px;
}

.about-section .glass-panel {
  padding: 2.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border-glass);
  padding-top: 2rem;
}

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

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: var(--font-heading);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Content Grid for Text Sections */
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.vertical-stack {
  grid-template-columns: 1fr !important;
}

.content-card h4 {
  color: var(--accent-secondary);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.content-card p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.content-card ul {
  list-style: none;
  margin-bottom: 1rem;
}

.content-card li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
  font-size: 0.95rem;
}

.content-card li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

.content-grid-vertical {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

/* 3x5 Grid for Gallery */
.gallery-grid-15 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.8rem;
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .gallery-grid-15 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.small-text {
  font-size: 0.85rem !important;
  opacity: 0.8;
  border-top: 1px solid var(--border-glass);
  padding-top: 1rem;
}

/* Glass Tables */
.tables-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.glass-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.9rem;
}

.glass-table th,
.glass-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.glass-table th {
  color: var(--accent-primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.glass-table td {
  color: var(--text-main);
}

.glass-table .total-row td {
  font-weight: 700;
  color: var(--accent-highlight);
  border-top: 2px solid rgba(255, 255, 255, 0.1);
}

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

/* Comparison Slider Styles */
.img-comparison-container {
    position: relative;
    width: 100%;
    /* overflow: hidden;  -- Keep hidden for border radius */
    overflow: hidden;
    border-radius: 8px;
    cursor: ew-resize;
    isolation: isolate; 
}

.img-wrapper {
    width: 100%;
    height: 100%;
}

.img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* changed to cover to fill container */
    display: block;
}

.before-image {
    position: relative; /* Props open the container */
    z-index: 1;
}

.after-image {
    position: absolute; /* Overlays */
    top: 0;
    left: 0;
    z-index: 2;
    width: 100%; /* Ensure full width available for clipping */
}

/* Slider Handle - flattened structure */
.slider-handle {
    position: absolute;
    top: 0;
    left: 50%;
    height: 100%; /* Explicit height */
    width: 4px;
    background: var(--accent-primary);
    z-index: 100;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    pointer-events: none; /* Container handles events */
}

.slider-handle i {
    background: #fff;
    color: var(--accent-primary);
    padding: 10px;
    border-radius: 50%;
    font-size: 1.2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    z-index: 101;
    /* Ensure icon sits on top of line */
    position: relative;
    flex-shrink: 0; /* Prevent squishing */
}

/* Distribution Visuals */
.distribution-grid {
  display: grid;
  grid-template-columns: 1fr; /* Stack vertically */
  gap: 2rem;
  margin-top: 2rem;
  max-width: 100%; /* Allow full width */
  margin-left: auto;
  margin-right: auto;
}

.dist-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.dist-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
}

.dist-caption {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
}

/* Gallery Grids */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.gallery-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s;
  cursor: pointer;
}

.gallery-img:hover {
  transform: scale(1.05);
  z-index: 10;
  box-shadow: 0 10px 20px rgba(0,0,0,0.5);
  border-color: var(--accent-primary);
}

.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Image Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4); /* Lighter dark overlay */
  backdrop-filter: blur(15px); /* Stronger blur */
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s;
}

.modal.show {
  display: flex;
  opacity: 1;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 50px rgba(0,0,0,0.5);
  transform: scale(0.5);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal.show .modal-content {
  transform: scale(1);
  animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.close-modal {
  position: absolute;
  top: 2rem;
  right: 2rem;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  z-index: 2001;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
}

.close-modal:hover {
  background: var(--accent-primary);
  color: #000;
}

/* GIF Row */
.gif-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.gif-img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border-glass);
}

/* Gallery Slider */
.slider-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  aspect-ratio: 16/9;
}

.slider-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

.slide.active {
  opacity: 1;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 1rem;
  text-align: center;
  backdrop-filter: blur(4px);
}

/* Slider Dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  position: absolute;
  bottom: 1.5rem;
  left: 0;
  width: 100%;
  z-index: 10;
}

.slider-dot {
  width: 12px;
  height: 12px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.slider-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

.slider-dot.active {
  background: var(--accent-primary);
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  border: none;
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
}

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

.prev-btn {
  left: 1rem;
}
.next-btn {
  right: 1rem;
}

/* Image Comparison Slider */
.comparison-block {
  margin-top: 4rem;
  text-align: center;
}

.img-comparison-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  height: 450px;
  margin: 2rem auto 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
}

.img-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* or contain depending on image */
  display: block;
}

.after-image {
  width: 100%; /* Changed from 50% to 100% so image is full size */
  overflow: hidden;
  /* We don't use border-right via css anymore if using clip-path, handle acts as border */
  /* border-right: 2px solid var(--accent-primary); */
  z-index: 2;
  /* Initial state handled by JS, but default here */
  clip-path: inset(0 50% 0 0);
}

.slider-handle {
  position: absolute;
  top: 50%;
  left: 50%; /* Matches initial width of after-image */
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: var(--accent-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  cursor: col-resize;
  z-index: 10;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.5);
}

.comparison-slider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  opacity: 0; /* invisible interactive layer */
  cursor: col-resize;
}

/* Structure Cards */
.structure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.structure-card {
  padding: 2rem;
  transition:
    transform 0.3s,
    border-color 0.3s;
}

.structure-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}

.icon-box {
  width: 50px;
  height: 50px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.structure-card code {
  display: block;
  margin-top: 1rem;
  padding: 0.5rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 4px;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  color: var(--accent-secondary);
}

/* Citation */
.citation-section .glass-panel {
  padding: 0;
  overflow: hidden;
  position: relative;
}

.code-block pre {
  padding: 2rem;
  overflow-x: auto;
  font-family: "Courier New", monospace;
  font-size: 0.9rem;
  color: #a5b4fc;
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Footer */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-glass);
  margin-top: 4rem;
  text-align: center;
  color: var(--text-muted);
}

.social-links {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-links a {
  color: var(--text-muted);
  font-size: 1.25rem;
  transition: color 0.3s;
}

.social-links a:hover {
  color: var(--accent-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding-top: 100px;
    gap: 3rem; /* Add gap since we are stacking */
  }

  .hero-content {
    margin-top: 2rem;
    text-align: center;
  }

  .action-buttons {
    justify-content: center;
  }

  .nav-links {
    display: none; /* simple hide for now, would add hamburger in full implementation */
  }

  h1 {
    font-size: 2.5rem;
  }
}