@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700&display=swap');

:root {
  --bg: #0a0f1a;
  --panel: #181f2f;
  --neon-blue: #00eaff;
  --neon-pink: #ff00cc;
  --neon-green: #39ff14;
  --text: #e0e6f7;
  --muted: #7a7f9a;
  --shadow: 0 0 24px var(--neon-blue), 0 0 48px var(--neon-pink);
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Orbitron', Arial, sans-serif;
  min-height: 100vh;
}

body {
  background: linear-gradient(135deg, #0a0f1a 60%, #181f2f 100%);
  min-height: 100vh;
}

nav {
  background: rgba(10, 15, 26, 0.95);
  box-shadow: 0 2px 24px var(--neon-blue);
  padding: 1.2rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}
nav a {
  color: var(--neon-blue);
  text-decoration: none;
  margin: 0 2rem;
  font-size: 1.1rem;
  letter-spacing: 2px;
  font-weight: 700;
  transition: color 0.2s, text-shadow 0.2s;
  text-shadow: 0 0 8px var(--neon-blue);
}
nav a:hover {
  color: var(--neon-pink);
  text-shadow: 0 0 16px var(--neon-pink), 0 0 32px var(--neon-blue);
}

.hero {
  text-align: center;
  padding: 5rem 2rem 3rem 2rem;
  background: linear-gradient(120deg, rgba(0,234,255,0.08) 0%, rgba(255,0,204,0.08) 100%);
  border-bottom: 2px solid var(--neon-blue);
  box-shadow: 0 4px 32px var(--neon-blue);
}
.hero h1 {
  font-size: 3.5rem;
  color: var(--neon-blue);
  text-shadow: 0 0 32px var(--neon-blue), 0 0 64px var(--neon-pink);
  animation: neon-flicker 2.5s infinite alternate, floaty 4s ease-in-out infinite;
}
.hero p {
  font-size: 1.5rem;
  color: var(--text);
  margin-top: 1.5rem;
  text-shadow: 0 0 8px var(--neon-green);
}
@keyframes neon-flicker {
  0% { opacity: 1; text-shadow: 0 0 32px var(--neon-blue), 0 0 64px var(--neon-pink); }
  50% { opacity: 0.85; text-shadow: 0 0 16px var(--neon-blue), 0 0 32px var(--neon-pink); }
  100% { opacity: 1; text-shadow: 0 0 32px var(--neon-blue), 0 0 64px var(--neon-pink); }
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.section {
  max-width: 900px;
  margin: 3rem auto;
  background: var(--panel);
  border-radius: 18px;
  box-shadow: 0 0 32px var(--neon-pink), 0 0 16px var(--neon-blue);
  padding: 2.5rem 2rem;
  animation: fadeInUp 1.2s cubic-bezier(.39,.575,.56,1.000) both;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(.39,.575,.56,1.000), transform 0.8s cubic-bezier(.39,.575,.56,1.000);
}
.section.visible {
  opacity: 1;
  transform: translateY(0);
}
@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(40px); }
  100% { opacity: 1; transform: translateY(0); }
}

.section h2 {
  color: var(--neon-green);
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
  text-shadow: 0 0 12px var(--neon-green);
}
.section p, .section li {
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1.7;
}
.section ul {
  margin: 1rem 0 1rem 2rem;
}

.faq {
  margin-top: 2rem;
}
.faq-item {
  margin-bottom: 1.5rem;
}
.faq-question {
  color: var(--neon-blue);
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
}
.faq-question:hover {
  color: var(--neon-pink);
}
.faq-answer {
  display: none;
  margin-top: 0.5rem;
  color: var(--muted);
  border-left: 3px solid var(--neon-blue);
  padding-left: 1rem;
  font-size: 1rem;
  max-height: 0;
  overflow: hidden;
}
.faq-item.active .faq-answer {
  display: block;
  animation: fadeInUp 0.7s;
}

.cta {
  text-align: center;
  margin: 3rem 0 2rem 0;
}
.cta-btn {
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 1rem 2.5rem;
  font-size: 1.3rem;
  font-family: 'Orbitron', Arial, sans-serif;
  font-weight: 700;
  box-shadow: 0 0 24px var(--neon-blue), 0 0 48px var(--neon-pink);
  cursor: pointer;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
  margin-top: 1.5rem;
}
.cta-btn:hover {
  background: linear-gradient(90deg, var(--neon-pink), var(--neon-blue));
  box-shadow: 0 0 48px var(--neon-pink), 0 0 24px var(--neon-blue);
  transform: scale(1.05);
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 2rem 0 1rem 0;
  font-size: 1rem;
  background: rgba(10, 15, 26, 0.95);
  border-top: 2px solid var(--neon-blue);
  margin-top: 4rem;
}

/* Animations for file upload and result */
.upload-anim {
  animation: fadeInUp 1s;
}
.result-anim {
  animation: neon-flicker 1.5s infinite alternate;
}

/* Neon Dropzone Styles */
.neon-dropzone-wrap {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.neon-dropzone {
  background: linear-gradient(120deg, rgba(0,234,255,0.12) 0%, rgba(255,0,204,0.10) 100%);
  border: 2.5px dashed var(--neon-blue);
  border-radius: 16px;
  width: 220px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 24px var(--neon-blue), 0 0 16px var(--neon-pink);
  cursor: pointer;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
  margin-bottom: 1rem;
  overflow: hidden;
}
.neon-dropzone.dragover {
  border-color: var(--neon-green);
  box-shadow: 0 0 32px var(--neon-green), 0 0 32px var(--neon-pink);
  background: linear-gradient(120deg, rgba(57,255,20,0.18) 0%, rgba(255,0,204,0.18) 100%);
}
.dropzone-label {
  text-align: center;
  color: var(--neon-blue);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 1.5rem 0.5rem;
  transition: color 0.2s, text-shadow 0.2s;
  z-index: 2;
}
.dropzone-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 16px var(--neon-blue);
}
.preview-canvas {
  display: none;
  margin-top: 0.5rem;
  border-radius: 10px;
  box-shadow: 0 0 16px var(--neon-blue), 0 0 8px var(--neon-pink);
  max-width: 200px;
  max-height: 200px;
  background: #111;
  animation: fadeInUp 0.7s;
}
.neon-dropzone.has-image .dropzone-label {
  display: none;
}
.neon-dropzone.has-image .preview-canvas {
  display: block;
  animation: fadeInUp 0.7s;
}

/* Animated Loading Bar */
.loading-bar {
  width: 180px;
  height: 8px;
  margin: 1.5rem auto 0 auto;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--neon-blue), var(--neon-pink));
  box-shadow: 0 0 16px var(--neon-blue), 0 0 32px var(--neon-pink);
  position: relative;
  overflow: hidden;
  animation: loading-glow 1.2s infinite alternate;
}
@keyframes loading-glow {
  0% { box-shadow: 0 0 8px var(--neon-blue), 0 0 16px var(--neon-pink); }
  100% { box-shadow: 0 0 32px var(--neon-blue), 0 0 48px var(--neon-pink); }
}

/* Animated Result Card */
.result-card {
  margin: 2rem auto 0 auto;
  max-width: 400px;
  background: linear-gradient(120deg, rgba(0,234,255,0.18) 0%, rgba(255,0,204,0.18) 100%);
  border-radius: 18px;
  box-shadow: 0 0 32px var(--neon-pink), 0 0 16px var(--neon-blue);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text);
  animation: fadeInUp 1s;
}
.result-card .result-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
  text-shadow: 0 0 16px var(--neon-green), 0 0 16px var(--neon-pink);
}
.result-card .confidence-bar {
  width: 100%;
  height: 12px;
  border-radius: 6px;
  background: #222;
  margin: 1rem 0 0.5rem 0;
  overflow: hidden;
  box-shadow: 0 0 8px var(--neon-blue);
}
.result-card .confidence-fill {
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-blue));
  box-shadow: 0 0 16px var(--neon-green);
  transition: width 0.7s cubic-bezier(.39,.575,.56,1.000);
}
.result-card .confidence-label {
  font-size: 1.1rem;
  color: var(--neon-green);
  margin-bottom: 0.5rem;
}
.result-card .result-message {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 1rem;
  color: var(--neon-blue);
  text-shadow: 0 0 8px var(--neon-blue);
}
.result-card .result-message.negative {
  color: var(--neon-pink);
  text-shadow: 0 0 8px var(--neon-pink);
}

/* Responsive */
@media (max-width: 700px) {
  .section { padding: 1.2rem 0.5rem; }
  .hero h1 { font-size: 2.2rem; }
  nav a { margin: 0 0.7rem; font-size: 1rem; }
  .neon-dropzone-wrap { flex-direction: column; gap: 1.5rem; }
  .neon-dropzone { width: 95vw; min-width: 0; max-width: 350px; }
}

/* Neon Hamburger Menu */
.menu-toggle {
  display: none;
  position: absolute;
  right: 2rem;
  top: 1.2rem;
  z-index: 200;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle .bar {
  display: block;
  width: 28px;
  height: 4px;
  margin: 6px auto;
  background: var(--neon-blue);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--neon-blue);
  transition: all 0.3s cubic-bezier(.39,.575,.56,1.000);
}
.menu-toggle.open .bar1 {
  transform: translateY(10px) rotate(45deg);
  background: var(--neon-pink);
}
.menu-toggle.open .bar2 {
  opacity: 0;
}
.menu-toggle.open .bar3 {
  transform: translateY(-10px) rotate(-45deg);
  background: var(--neon-pink);
}
nav {
  position: relative;
}
nav .nav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  transition: max-height 0.4s cubic-bezier(.39,.575,.56,1.000);
}
@media (max-width: 900px) {
  .menu-toggle {
    display: block;
  }
  nav .nav-links {
    flex-direction: column;
    background: rgba(10, 15, 26, 0.98);
    position: absolute;
    top: 100%;
    left: 0;
    width: 100vw;
    max-height: 0;
    overflow: hidden;
    box-shadow: 0 8px 32px var(--neon-blue);
    z-index: 150;
    border-bottom: 2px solid var(--neon-blue);
  }
  nav .nav-links.open {
    max-height: 400px;
    padding-bottom: 1.5rem;
  }
  nav .nav-links a {
    margin: 1.2rem 0;
    font-size: 1.2rem;
  }
}