:root {
  --bg-color: #050505;
  --panel-bg: rgba(20, 20, 25, 0.7);
  --accent-color: #ef6413;
  --accent-hover: #ff7d2e;
  --success-color: #00e676;
  --success-hover: #69f0ae;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --border-color: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.05);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --font-main: 'Outfit', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

.glass-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at 20% 20%, rgba(239, 100, 19, 0.15), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(0, 230, 118, 0.1), transparent 40%);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 24px;
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: white;
  text-decoration: none;
}

.logo svg {
  color: var(--accent-color);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: white;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: white;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: white;
}

/* Hero Section */
.hero {
  text-align: center;
  padding-top: 80px;
  /* Match fixed nav height */
  margin-bottom: 32px;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(239, 100, 19, 0.1);
  border: 1px solid rgba(239, 100, 19, 0.2);
  color: var(--accent-color);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 12px;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 0%, #a0a0b0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Drop Zone */
.drop-section {
  margin-bottom: 32px;
}

.dropzone {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent-color);
  background: rgba(239, 100, 19, 0.05);
  box-shadow: 0 0 40px rgba(239, 100, 19, 0.1);
}

.dropzone-content h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.dropzone-content p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.icon-wrapper {
  margin-bottom: 20px;
  color: var(--accent-color);
}

/* Controls */
.controls-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 32px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.control-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.value-badge {
  font-size: 0.85rem;
  background: var(--accent-color);
  padding: 2px 8px;
  border-radius: 4px;
}

/* Inputs */
.slider {
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  outline: none;
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--accent-color);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(239, 100, 19, 0.5);
  transition: var(--transition);
}

.select-input,
.number-input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: white;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  cursor: pointer;
}

.select-input option {
  background-color: #121212;
  color: white;
}

.select-input:focus,
.number-input:focus {
  border-color: var(--accent-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 2px rgba(239, 100, 19, 0.2);
}

/* Buttons */
.btn {
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(239, 100, 19, 0.2);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: white;
  border: 1px solid var(--border-color);
  width: 100%;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-success {
  background: var(--success-color);
  color: #050505;
}

.btn-success:hover {
  background: var(--success-hover);
  transform: translateY(-2px);
}

/* Result Cards */
.results-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.result-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  animation: slideUp 0.4s ease-out;
}

.comparison-slider {
  position: relative;
  width: 100%;
  max-height: 540px;
  /* Limit height for portrait images */
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #111;
  user-select: none;
  cursor: ew-resize;
}

.original-img-base {
  width: 100%;
  height: 100%;
  max-height: 540px;
  object-fit: cover;
  display: block;
}

.after-layer-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  clip-path: inset(0 0 0 50%);
  /* Reveal Compressed on the right */
  pointer-events: none;
}

.compressed-img-overlay {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Changed to cover to match base alignment */
  display: block;
}

.slider-handle {
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background: var(--accent-color);
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: auto;
}

.slider-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 20px rgba(239, 100, 19, 0.4);
  border: 3px solid rgba(255, 255, 255, 0.2);
}

.slider-label {
  position: absolute;
  bottom: 16px;
  padding: 6px 14px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 4px;
  pointer-events: none;
  z-index: 4;
}

.before-label {
  left: 16px;
}

.after-label {
  right: 16px;
}

.result-info h4 {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stats-grid {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
}

.original-size {
  color: var(--text-secondary);
}

.compressed-size {
  color: var(--success-color);
  font-weight: 600;
}

.savings {
  color: var(--accent-color);
  font-weight: 700;
}

.download-link {
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  padding: 10px;
  border-radius: 50%;
  color: white;
  transition: var(--transition);
}

.download-link:hover {
  background: var(--success-color);
  color: #050505;
}

/* Batch Actions Styling */
.batch-actions {
  margin: 40px 0;
  display: flex;
  justify-content: center;
  gap: 16px;
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.batch-actions .btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: white;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: white;
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.btn-danger-outline:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
}

/* Navigation & Tool Switcher */
.tool-switcher-nav {
  margin-top: 24px;
  z-index: 100;
}

.switcher-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.03);
  padding: 6px;
  border-radius: 100px;
  gap: 4px;
  width: fit-content;
  margin: 0 auto;
  border: 1px solid var(--glass-border);
}

.switcher-btn {
  padding: 10px 24px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-weight: 500;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

.switcher-btn:hover {
  color: white;
  background: rgba(255, 255, 255, 0.05);
}

.switcher-btn.active {
  background: var(--accent-color);
  color: white;
  box-shadow: 0 4px 15px rgba(239, 100, 19, 0.3);
}

.tool-view {
  display: none;
  animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-view.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
footer {
  margin-top: 40px;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-color);
  padding: 32px 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 20px;
  font-size: 0.95rem;
}

.footer-links-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: white;
}

.footer-links-col a {
  display: block;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer-links-col a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--success-color);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success-color);
}

.setup-card {
  background: rgba(239, 100, 19, 0.05);
  border: 1px solid rgba(239, 100, 19, 0.2);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  margin-top: 20px;
  animation: slideUp 0.5s ease-out;
}

.setup-card h4 {
  color: var(--accent-color);
  font-size: 1.2rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.setup-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.setup-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
  max-width: 400px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  gap: 12px;
  color: white;
  font-size: 0.9rem;
}

.step-number {
  flex: 0 0 24px;
  height: 24px;
  background: var(--accent-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.loading-status {
  padding: 24px;
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-top: 24px;
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 1rem;
  font-weight: 500;
}

.audio-result-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 20px;
  animation: slideUp 0.4s ease-out;
}

.audio-icon {
  width: 48px;
  height: 48px;
  background: rgba(239, 100, 19, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
}

.progress-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  margin-top: 10px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--accent-color);
  width: 0%;
  transition: width 0.3s ease;
}

/* Content Sections */
.content-section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, #a0a0b0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(239, 100, 19, 0.4);
  background: rgba(239, 100, 19, 0.03);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(239, 100, 19, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 32px;
  color: var(--accent-color);
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--accent-color);
  color: white;
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(239, 100, 19, 0.3);
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  color: white;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Privacy Section */
.privacy-container {
  display: flex;
  align-items: center;
  gap: 80px;
  background: linear-gradient(135deg, rgba(20, 20, 25, 0.7) 0%, rgba(239, 100, 19, 0.05) 100%);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 80px;
}

.privacy-content {
  flex: 1;
}

.privacy-content p {
  margin-bottom: 40px;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.privacy-stats {
  display: flex;
  gap: 60px;
}

.p-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.p-val {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-color);
}

.p-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.privacy-visual {
  flex: 0 0 auto;
}

.p-icon-large {
  color: var(--accent-color);
  opacity: 0.9;
  filter: drop-shadow(0 0 40px rgba(239, 100, 19, 0.2));
}

/* About Card */
.about-card {
  background: linear-gradient(135deg, rgba(239, 100, 19, 0.05) 0%, transparent 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 80px 60px;
  text-align: center;
}

.about-card p {
  max-width: 800px;
  margin: 0 auto 24px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.about-actions {
  margin: 32px 0 0;
}

.about-footer {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
}

.built-with {
  font-size: 0.9rem;
  color: var(--accent-color);
  font-weight: 600;
}

/* Smooth Scroll Margin */
.scroll-mt {
  scroll-margin-top: 100px;
}

/* Animations */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-container {
    flex-direction: column;
    gap: 40px;
    padding: 60px 40px;
    text-align: center;
  }

  .privacy-stats {
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .result-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 20px;
  }

  .result-card img {
    margin: 0 auto;
  }

  .stats-grid {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .privacy-container {
    padding: 40px 24px;
  }

  .p-val {
    font-size: 2rem;
  }

  .privacy-stats {
    gap: 30px;
  }
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 50px;
  height: 50px;
  background: var(--panel-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: 0 8px 30px rgba(239, 100, 19, 0.4);
}

@media (max-width: 768px) {
  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
}