/* Modern reset and custom properties */
:root {
  --primary-color: #4361ee;
  --secondary-color: #3f37c9;
  --accent-color: #4cc9f0;
  --danger-color: #f72585;
  --success-color: #4ad66d;
  --dark-bg: #0f0f13;
  --light-text: #f8f9fa;
  --glass-bg: rgba(15, 15, 19, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Base styles */
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--light-text);
  background: var(--dark-bg);
  position: relative;
  overflow-x: hidden;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--primary-color);
  text-shadow: 0 2px 5px rgba(0,0,0,0.4);
  animation: floaty 6s ease-in-out infinite;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--accent-color);
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #7209b7;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  background: linear-gradient(135deg, #7209b7, var(--primary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Animated background with pseudo-elements */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(67, 97, 238, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(247, 37, 133, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 40% 80%, rgba(76, 201, 240, 0.15) 0%, transparent 40%),
    linear-gradient(to bottom, var(--dark-bg), #1a1a2e);
  background-size: 200% 200%;
  animation: gradientShift 20s ease infinite alternate;
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.3) 1px, transparent 0),
    radial-gradient(1px 1px at 80% 70%, rgba(255,255,255,0.3) 1px, transparent 0),
    radial-gradient(1px 1px at 40% 90%, rgba(255,255,255,0.3) 1px, transparent 0);
  background-size: 200px 200px;
  animation: particleMove 40s linear infinite;
  z-index: -1;
  opacity: 0.5;
}

/* Floating orbs */
.floating-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.2;
  z-index: -1;
  animation: floatOrb 15s infinite ease-in-out;
}

.floating-orb.primary { width: 300px; height: 300px; background: var(--primary-color); top: 20%; left: 10%; }
.floating-orb.accent { width: 400px; height: 400px; background: var(--accent-color); bottom: 10%; right: 10%; animation-delay: 5s; }
.floating-orb.danger { width: 250px; height: 250px; background: var(--danger-color); top: 50%; right: 20%; animation-delay: 7s; }

/* Glassmorphism containers */
.upload-container,
.result-container,
#status-message {
  background: var(--glass-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), inset 0 0 10px rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

/* Upload container */
.upload-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 2.5rem;
  max-width: 600px;
  width: 100%;
  margin-bottom: 2rem;
  animation: slideIn 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards, floaty 8s ease-in-out infinite;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.upload-container::before {
  content: '';
  position: absolute;
  inset: -50%;
  background: linear-gradient(to bottom right, rgba(255,255,255,0.1), transparent, rgba(255,255,255,0.1));
  transform: rotate(30deg);
  animation: shine 6s infinite;
}

/* Upload group */
.upload-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  transform-style: preserve-3d;
  perspective: 500px;
  transition: var(--transition);
}

.upload-group:hover { transform: translateY(-5px) translateZ(10px); }

/* Button styles */
button, .download-btn, #download-enhanced, #download-harmonized {
  padding: 0.85rem 1.75rem;
  border: none;
  border-radius: 12px;
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transform-style: preserve-3d;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
}

button::before, .download-btn::before, #download-enhanced::before, #download-harmonized::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s;
}

button:hover, .download-btn:hover, #download-enhanced:hover, #download-harmonized:hover {
  transform: scale(1.05) translateZ(10px);
}

button:hover::before, .download-btn:hover::before, #download-enhanced:hover::before, #download-harmonized:hover::before {
  transform: translateX(100%);
}

button:active, .download-btn:active, #download-enhanced:active, #download-harmonized:active {
  transform: scale(0.98) translateZ(5px);
}

/* Specific button styles */
button {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

button:hover {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  box-shadow: 0 8px 25px rgba(0, 123, 255, 0.4);
}

#finalize-btn {
  padding: 1.1rem 2.2rem;
  font-size: 1.2rem;
  background: linear-gradient(135deg, #7209b7, var(--primary-color));
  animation: pulse3D 2s infinite ease-in-out, glow 3s infinite alternate;
}

.remove-btn {
  background: linear-gradient(135deg, var(--danger-color), #b5179e);
}

.remove-btn:hover {
  background: linear-gradient(135deg, #b5179e, var(--danger-color));
  box-shadow: 0 8px 25px rgba(220, 53, 69, 0.4);
  animation: shake 0.5s ease-in-out;
}

.download-btn, #download-enhanced, #download-harmonized {
  background: linear-gradient(135deg, #7209b7, var(--primary-color));
}

.download-btn:hover, #download-enhanced:hover, #download-harmonized:hover {
  background: linear-gradient(135deg, var(--primary-color), #7209b7);
  box-shadow: 0 8px 25px rgba(114, 9, 183, 0.4);
}

/* Result container */
.result-container {
  margin-top: 2rem;
  padding: 2.5rem;
  max-width: 600px;
  width: 100%;
  text-align: center;
  animation: slideUp 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards, floaty 8s ease-in-out infinite 0.7s;
}

/* Canvas and image */
#composite-canvas {
  border: 2px solid transparent;
  border-radius: 12px;
  background: linear-gradient(45deg, #fff, #fff) padding-box,
              linear-gradient(135deg, var(--primary-color), var(--accent-color)) border-box;
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: floaty 6s ease-in-out infinite;
}

#enhanced-image, #harmonized-image {
  border: 2px solid transparent;
  border-radius: 12px;
  background: linear-gradient(45deg, #fff, #fff) padding-box,
              linear-gradient(135deg, var(--success-color), #38b000) border-box;
  box-shadow: var(--shadow);
  transition: var(--transition);
  animation: floaty 6s ease-in-out infinite;
  max-width: 100%;
  height: auto;
}

#composite-canvas:hover, #enhanced-image:hover, #harmonized-image:hover {
  transform: scale(1.02) translateZ(10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

/* Loader */
.loader, #loader1 {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 3rem auto;
  display: none;
  z-index: 1000;
}

.loader::before, #loader1::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 6px solid transparent;
  border-top-color: var(--accent-color);
  border-right-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  box-shadow: 0 0 20px rgba(76, 201, 240, 0.8), inset 0 0 10px rgba(67, 97, 238, 0.6);
}

.loader::after, #loader1::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 4px solid transparent;
  border-bottom-color: var(--success-color);
  border-radius: 50%;
  animation: spin 1.5s linear infinite reverse;
  box-shadow: 0 0 15px rgba(74, 214, 109, 0.8);
}

/* Range input */
input[type="range"] {
  width: 220px;
  height: 10px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 5px;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: 0 0 10px rgba(67, 97, 238, 0.3);
  transition: box-shadow 0.3s ease;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  background: white;
  border: 3px solid var(--primary-color);
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 10px rgba(67, 97, 238, 0.5);
  transition: var(--transition);
}

input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 15px rgba(67, 97, 238, 0.7);
}

/* Labels and spans */
.upload-group label {
  width: 120px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--light-text);
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transition: var(--transition);
}

.upload-group:hover label {
  color: white;
  text-shadow: 0 2px 5px rgba(0,0,0,0.4);
}

.upload-group span {
  width: 60px;
  text-align: right;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
  transition: var(--transition);
}

.upload-group:hover span {
  color: white;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* Status message */
#status-message {
  font-size: 1.2rem;
  font-weight: 500;
  padding: 1.2rem 2rem;
  margin: 1.5rem 0;
  text-align: center;
  letter-spacing: 0.5px;
  z-index: 100;
  animation: hologramFloat 4s ease-in-out infinite, hologramFlicker 5s infinite alternate;
}

#status-message::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, #4cc9f0, #4361ee, #7209b7, #f72585, #4cc9f0);
  background-size: 200%;
  z-index: -1;
  border-radius: inherit;
  animation: borderGradient 4s linear infinite;
  opacity: 0.7;
}

/* Keyframes */
@keyframes gradientShift { 0% { background-position: 0% 0%; } 50% { background-position: 100% 100%; } 100% { background-position: 0% 100%; } }
@keyframes particleMove { from { background-position: 0 0; } to { background-position: 200px 200px; } }
@keyframes floatOrb { 0%, 100% { transform: translate(0, 0); } 25% { transform: translate(50px, 50px); } 50% { transform: translate(0, 100px); } 75% { transform: translate(-50px, 50px); } }
@keyframes shine { from { transform: translateX(-100%) rotate(30deg); } to { transform: translateX(100%) rotate(30deg); } }
@keyframes floaty { 0%, 100% { transform: translateY(0) rotateX(0.5deg) rotateY(0.5deg); } 50% { transform: translateY(-10px) rotateX(-0.5deg) rotateY(-0.5deg); } }
@keyframes pulse3D { 0%, 100% { transform: scale(1) translateZ(0); } 50% { transform: scale(1.05) translateZ(10px); } }
@keyframes glow { 0% { box-shadow: 0 0 10px rgba(114, 9, 183, 0.5); } 100% { box-shadow: 0 0 20px rgba(114, 9, 183, 0.8), 0 0 30px rgba(67, 97, 238, 0.6); } }
@keyframes shake { 0%, 100% { transform: translateX(0) rotate(0); } 20% { transform: translateX(-5px) rotate(-5deg); } 40% { transform: translateX(5px) rotate(5deg); } 60% { transform: translateX(-5px) rotate(-5deg); } 80% { transform: translateX(5px) rotate(5deg); } }
@keyframes slideIn { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes hologramFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes hologramFlicker { 0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { opacity: 1; } 20%, 22%, 24%, 55% { opacity: 0.8; } }
@keyframes borderGradient { from { background-position: 0% 50%; } to { background-position: 200% 50%; } }

/* Responsive adjustments */
@media (max-width: 768px) {
  body { padding: 1.5rem; }
  .upload-container, .result-container { padding: 1.8rem; max-width: 95%; animation: none; }
  .upload-group { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
  input[type="range"] { width: 100%; }
  .upload-group label, .upload-group span { width: auto; text-align: left; }
  #status-message { font-size: 1.1rem; padding: 1rem 1.5rem; }
}
.p1-controls {
  display:none;
  flex-direction: column;
  gap:10px;
  padding:10px;
  margin-top: 15px;
  margin-bottom:10px;
}
.enhanced-output {
  margin-top: 20px;
}

/* Guidlines */

/* Guidelines popup */
.guidelines-popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.5s ease-in-out;
}

.guidelines-content {
    background: var(--glass-bg);
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow), inset 0 0 10px rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: left;
    animation: slideUp 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.guidelines-content ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
    font-size: 1rem;
    color: var(--light-text);
}

.guidelines-content li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.guidelines-content li:last-child {
    border-bottom: none;
}

.guidelines-content li:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

.guidelines-content li strong {
    color: var(--accent-color);
    font-weight: 600;
}

#guidelines-ok-btn {
    background: linear-gradient(135deg, var(--success-color), #38b000);
    margin-top: 1.5rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#guidelines-ok-btn:hover {
    background: linear-gradient(135deg, #38b000, var(--success-color));
    box-shadow: 0 8px 25px rgba(74, 214, 109, 0.4);
}

/* Main interface */
.main-interface {
    display: none;
}

/* Fade-in animation for popup */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}