/* Custom Premium Design System - SpotiDown (Spotify Colorway) */

:root {
  --font-primary: 'Inter', sans-serif;
  --font-title: 'Outfit', sans-serif;

  /* Softer Premium Dark Slate Color Palette */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  
  --spotify-green: #1db954;
  --spotify-green-hover: #1ed760;
  --spotify-green-glow: rgba(29, 185, 84, 0.25);
  
  --text-primary: #ffffff;
  --text-secondary: #a7a7a7;
  --text-muted: #6a6a6a;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(29, 185, 84, 0.3);
  
  --glass-bg: rgba(17, 24, 39, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --glass-blur: 16px;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-premium: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Reset and Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

.antialiased {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select {
  font-family: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.hidden {
  display: none !important;
}

/* Animated Glow Background */
.hero-bg-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 650px;
  z-index: -1;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
}

.glow-sphere {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  mix-blend-mode: screen;
  pointer-events: none;
}

.sphere-1 {
  top: -150px;
  left: 10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, var(--spotify-green) 0%, transparent 80%);
}

.sphere-2 {
  top: -100px;
  right: 15%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #00d2ff 0%, transparent 80%);
  opacity: 0.2;
}

/* Header Styling */
.main-header {
  border-bottom: 1px solid var(--border-color);
  padding: 18px 0;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 15, 25, 0.8);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-badge {
  color: var(--spotify-green);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spotify-logo-svg {
  width: 32px;
  height: 32px;
}

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

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.extension-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 100px;
  transition: var(--transition-smooth);
}

.extension-btn:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-secondary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Hero & Title Styles */
.hero-section {
  padding: 80px 0 60px 0;
}

.hero-title {
  font-family: var(--font-title);
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  max-width: 800px;
  margin: 0 auto 20px auto;
  background: linear-gradient(135deg, #fff 40%, #a7a7a7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 40px auto;
}

/* Warning/Notice Banner */
.warning-banner {
  background: rgba(229, 131, 23, 0.1);
  border: 1px solid rgba(229, 131, 23, 0.25);
  color: #ffaa44;
  border-radius: 12px;
  padding: 14px 20px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  font-size: 14px;
}

.warning-icon {
  font-size: 18px;
  flex-shrink: 0;
}

/* Downloader Wrapper & Form */
.downloader-wrapper {
  max-width: 720px;
  margin: 0 auto;
}

.input-container-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: 100px;
  display: flex;
  align-items: center;
  padding: 8px 8px 8px 24px;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
}

.input-container-pill:focus-within {
  border-color: var(--spotify-green);
  box-shadow: 0 0 25px var(--spotify-green-glow), var(--shadow-premium);
}

.input-left-decor {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  margin-right: 14px;
}

.music-icon {
  width: 20px;
  height: 20px;
  transition: var(--transition-smooth);
}

.input-container-pill:focus-within .music-icon {
  color: var(--spotify-green);
}

.url-input {
  background: transparent;
  border: none;
  outline: none;
  font-size: 15px;
  font-weight: 500;
  flex-grow: 1;
  color: var(--text-primary);
  width: 100%;
}

.url-input::placeholder {
  color: var(--text-muted);
}

.input-actions-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
}

.paste-btn {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 100px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.paste-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.paste-icon {
  width: 14px;
  height: 14px;
}

.download-submit-btn {
  background-color: var(--spotify-green);
  color: #000;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.download-submit-btn:hover {
  background-color: var(--spotify-green-hover);
  transform: scale(1.02);
  box-shadow: 0 0 20px rgba(29, 185, 84, 0.4);
}

.download-icon {
  width: 16px;
  height: 16px;
}

/* Alert Banner */
.message-banner {
  border-radius: 12px;
  padding: 14px 24px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  animation: slideUp 0.3s ease;
  border: 1px solid transparent;
}

.message-banner.error-state {
  background: rgba(255, 68, 68, 0.1);
  border-color: rgba(255, 68, 68, 0.25);
  color: #ff5555;
}

.message-banner.success-state {
  background: rgba(29, 185, 84, 0.1);
  border-color: rgba(29, 185, 84, 0.25);
  color: var(--spotify-green-hover);
}

/* Dynamic Results Container */
.result-container-wrapper {
  margin-top: 45px;
  animation: fadeIn 0.4s ease;
}

/* Skeleton Loading State */
.skeleton-loader {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: 20px;
  max-width: 620px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  gap: 24px;
  text-align: left;
}

.skeleton-art {
  width: 120px;
  height: 120px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.skeleton-details {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.skeleton-line {
  height: 16px;
  background: var(--bg-tertiary);
  border-radius: 100px;
  position: relative;
  overflow: hidden;
}

.skeleton-title {
  width: 70%;
  height: 20px;
}

.skeleton-artist {
  width: 45%;
}

.skeleton-player {
  width: 90%;
  height: 12px;
}

/* Shimmer Animation for Skeleton */
.skeleton-art::after, .skeleton-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 150%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.04), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  100% { left: 150%; }
}

/* Track Card Info */
.track-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: 24px;
  max-width: 680px;
  margin: 0 auto;
  padding: 28px;
  display: flex;
  gap: 28px;
  text-align: left;
  box-shadow: var(--shadow-premium);
}

.card-left {
  position: relative;
  flex-shrink: 0;
}

.artwork-container {
  width: 140px;
  height: 140px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  position: relative;
}

.track-artwork {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-play-btn {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
  color: #fff;
}

.artwork-container:hover .preview-play-btn {
  opacity: 1;
}

.play-svg, .pause-svg {
  width: 38px;
  height: 38px;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
  transition: transform 0.2s ease;
}

.preview-play-btn:hover .play-svg, .preview-play-btn:hover .pause-svg {
  transform: scale(1.15);
}

.card-right {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.track-meta {
  margin-bottom: 18px;
}

.track-genre-tag {
  background: var(--spotify-green-glow);
  color: var(--spotify-green);
  border: 1px solid rgba(29, 185, 84, 0.2);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.track-title-text {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.track-artist-text {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.track-stats-row {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  align-items: center;
}

.track-plays {
  display: flex;
  align-items: center;
  gap: 4px;
}

.plays-icon {
  width: 12px;
  height: 12px;
  fill: currentColor;
}

/* Download Configuration Box */
.download-action-box {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.format-select-wrapper {
  display: flex;
  align-items: center;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  border-radius: 100px;
  gap: 8px;
}

.format-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.format-select {
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  padding-right: 4px;
}

.format-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.start-download-btn {
  background-color: var(--spotify-green);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.start-download-btn:hover {
  background-color: var(--spotify-green-hover);
  box-shadow: 0 0 15px var(--spotify-green-glow);
}

.btn-download-icon {
  width: 14px;
  height: 14px;
}

.convert-next-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.convert-next-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.btn-reset-icon {
  width: 14px;
  height: 14px;
}

/* Progress bar inside card */
.extraction-progress-wrapper {
  margin-top: 14px;
  background: rgba(255, 255, 255, 0.03);
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.progress-details-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}

.progress-status-text {
  color: var(--text-secondary);
}

.progress-percentage-text {
  color: var(--spotify-green);
}

.progress-bar-track {
  height: 6px;
  background: var(--bg-primary);
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--spotify-green), var(--spotify-green-hover));
  border-radius: 10px;
  width: 0%;
  transition: width 0.3s ease;
  box-shadow: 0 0 10px rgba(29, 185, 84, 0.5);
}

/* Playlist Card styling */
.playlist-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: 24px;
  max-width: 800px;
  margin: 0 auto;
  padding: 28px;
  box-shadow: var(--shadow-premium);
}

.playlist-header {
  display: flex;
  gap: 24px;
  align-items: center;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 20px;
}

.playlist-artwork {
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.playlist-meta {
  flex-grow: 1;
}

.playlist-tag {
  background: rgba(255, 255, 255, 0.08);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  display: inline-block;
  margin-bottom: 8px;
}

.playlist-title-text {
  font-family: var(--font-title);
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 4px;
}

.playlist-artist-text {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.playlist-stats-row {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.playlist-reset-btn {
  margin-left: auto;
  align-self: flex-start;
}

.playlist-quality-header {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.02);
  padding: 12px 20px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.playlist-quality-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 6px 12px;
}

/* Playlist track table list */
.playlist-tracks-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 6px;
}

/* Scrollbar styles for list */
.playlist-tracks-list::-webkit-scrollbar {
  width: 6px;
}
.playlist-tracks-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-radius: 10px;
}
.playlist-tracks-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}
.playlist-tracks-list::-webkit-scrollbar-thumb:hover {
  background: var(--spotify-green);
}

.track-row-item {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 12px 18px;
  text-align: left;
  transition: var(--transition-smooth);
}

.track-row-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.06);
}

.row-index {
  width: 30px;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
}

.row-artwork {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  object-fit: cover;
  margin-right: 16px;
}

.row-details {
  flex-grow: 1;
  min-width: 0;
  padding-right: 16px;
}

.row-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-artist {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.row-duration {
  font-size: 13px;
  color: var(--text-muted);
  margin-right: 24px;
  font-weight: 500;
}

.row-action {
  position: relative;
  display: flex;
  align-items: center;
}

.row-dl-btn {
  background: var(--spotify-green);
  color: #000;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.row-dl-btn:hover {
  background: var(--spotify-green-hover);
  transform: scale(1.1);
}

.row-dl-icon {
  width: 14px;
  height: 14px;
}

.row-progress-ring {
  width: 24px;
  height: 24px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--spotify-green);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 4px;
}

.row-complete-icon {
  color: var(--spotify-green);
  font-weight: 700;
  font-size: 16px;
  margin: 4px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Feature badges */
.feature-badges {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-top: 40px;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.dot-green {
  width: 8px;
  height: 8px;
  background-color: var(--spotify-green);
  border-radius: 50%;
}

.animate-pulse {
  animation: pulse 1.8s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(1.2); }
}

/* Chrome Extension Promo Banner */
.extension-banner {
  background: linear-gradient(135deg, rgba(29, 185, 84, 0.1), rgba(18, 18, 20, 0.8));
  border: 1px solid rgba(29, 185, 84, 0.15);
  border-radius: 20px;
  padding: 24px;
  width: 100%;
  max-width: 720px;
  margin: 50px auto 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  gap: 20px;
}

.extension-content {
  display: flex;
  gap: 16px;
  align-items: center;
}

.chrome-store-icon {
  width: 48px;
  height: 48px;
}

.ext-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.ext-title {
  font-size: 16px;
  font-weight: 700;
}

.official-tag {
  background-color: var(--spotify-green);
  color: #000;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
}

.ext-description {
  font-size: 13px;
  color: var(--text-secondary);
}

.ext-action-wrapper {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.ext-install-link {
  background-color: var(--text-primary);
  color: #000;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
  flex-shrink: 0;
  white-space: nowrap;
}

.ext-install-link:hover {
  background-color: var(--spotify-green-hover);
  transform: translateY(-2px);
}

/* Stats metrics section */
.metrics-divider-section {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  padding: 60px 0;
  margin: 60px 0;
}

.metrics-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: 100%;
  gap: 30px;
  margin-bottom: 28px;
}

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

.metric-number {
  font-family: var(--font-title);
  font-size: 42px;
  font-weight: 800;
  color: var(--spotify-green);
  line-height: 1.1;
  margin-bottom: 6px;
}

.metric-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.metrics-disclaimer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.pulse-indicator {
  width: 6px;
  height: 6px;
  background-color: var(--spotify-green);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--spotify-green);
  animation: pulse 1.5s infinite;
}

/* How to use section */
.how-to-use-section {
  padding: 60px 0;
}

.section-header {
  margin-bottom: 50px;
}

.section-title {
  font-family: var(--font-title);
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 10px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.step-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-premium);
}

.step-number {
  position: absolute;
  top: 14px;
  right: 24px;
  font-family: var(--font-title);
  font-size: 52px;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
}

.step-icon-wrapper {
  background: rgba(255, 255, 255, 0.03);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--spotify-green);
  margin-bottom: 24px;
}

.step-icon {
  width: 22px;
  height: 22px;
}

.step-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-description {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  flex-grow: 1;
}

.step-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  padding: 12px 18px;
  border-radius: 12px;
}

.app-mockup {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
}

.mockup-action-btn {
  background-color: var(--spotify-green);
  color: #000;
  font-size: 11px;
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 100px;
}

.input-mockup {
  display: flex;
  justify-content: space-between;
  width: 100%;
  font-size: 11px;
  color: var(--text-muted);
}

.mockup-action-badge {
  color: var(--spotify-green);
  font-weight: 700;
}

.mockup-circle-download-btn {
  background-color: var(--spotify-green);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Features Section styling */
.features-section {
  padding: 60px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  text-align: left;
  transition: var(--transition-smooth);
}

.feature-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

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

.feat-icon {
  width: 32px;
  height: 32px;
}

.feat-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.feat-description {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* FAQ styling */
.faq-section {
  padding: 60px 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  text-align: left;
  margin-top: 40px;
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 16px;
}

.faq-question {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.faq-answer {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Deep dive copywriting guide */
.guide-section {
  padding: 60px 0;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

.guide-container {
  max-width: 800px;
}

.guide-article-card {
  text-align: left;
}

.guide-article-card h3 {
  font-family: var(--font-title);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 14px;
}

.guide-article-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.7;
}

/* Footer Section styling */
.main-footer {
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  padding: 40px 0;
  margin-top: 60px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a:hover {
  color: var(--spotify-green-hover);
}


/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .container {
    max-width: 960px;
    padding: 0 20px;
  }
  .hero-title {
    font-size: 40px;
  }
  .steps-grid, .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 900px) {
  .extension-banner {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 20px;
    gap: 16px;
  }
  .extension-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
  }
  .ext-title-row {
    flex-direction: column;
    gap: 6px;
    justify-content: center;
  }
  .ext-install-link {
    width: 100%;
    max-width: 250px;
    justify-content: center;
  }
  .ext-action-wrapper {
    width: 100%;
    justify-content: center;
    display: flex;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  /* Header section */
  .main-header {
    padding: 12px 0;
    background-color: rgba(11, 15, 25, 0.95);
  }
  .header-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
  }
  .logo-link {
    font-size: 18px;
    flex-shrink: 0;
  }
  .desktop-nav {
    width: auto;
    justify-content: flex-end;
    gap: 12px;
    order: unset;
    padding-top: 0;
    border-top: none;
  }
  .desktop-nav a[href^="#"] {
    display: none !important;
  }
  .nav-link {
    font-size: 13px;
  }
  .header-actions {
    display: none; /* Hide Chrome Extension in header on mobile devices */
  }


  /* Hero Section */
  .hero-section {
    padding: 40px 0;
  }
  .hero-title {
    font-size: 32px;
    line-height: 1.2;
    letter-spacing: -0.5px;
  }
  .hero-subtitle {
    font-size: 14px;
    margin-bottom: 28px;
    padding: 0 8px;
  }

  /* Downloader Wrapper & Input Container Pill */
  .downloader-wrapper {
    padding: 0 4px;
  }
  .input-container-pill {
    flex-direction: column;
    border-radius: 20px;
    padding: 16px;
    gap: 12px;
    align-items: stretch;
  }
  .input-left-decor {
    display: none;
  }
  .url-input {
    text-align: center;
    font-size: 14px;
    padding: 6px 0;
  }
  .input-actions-wrapper {
    justify-content: center;
    margin-right: 0;
  }
  .paste-btn {
    width: 100%;
    max-width: 200px;
    justify-content: center;
  }
  .download-submit-btn {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
    font-size: 14px;
  }

  /* Feature Badges */
  .feature-badges {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 18px;
    margin-top: 28px;
  }
  .badge-item {
    font-size: 12px;
  }

  /* Results: Single Track Card */
  .track-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
    gap: 20px;
  }
  .card-left {
    margin-bottom: 4px;
  }
  .artwork-container {
    width: 130px;
    height: 130px;
  }
  .card-right {
    align-items: center;
    width: 100%;
  }
  .track-meta {
    margin-bottom: 12px;
    width: 100%;
  }
  .track-title-text {
    font-size: 20px;
    -webkit-line-clamp: 2;
  }
  .track-artist-text {
    font-size: 14px;
    margin-bottom: 8px;
  }
  .track-stats-row {
    justify-content: center;
    gap: 12px;
  }
  .download-action-box {
    justify-content: center;
    width: 100%;
    gap: 10px;
  }
  .format-select-wrapper {
    width: 100%;
    justify-content: center;
    padding: 8px 16px;
  }
  .start-download-btn, .convert-next-btn {
    width: 100%;
    justify-content: center;
    font-size: 13px;
    padding: 10px 20px;
  }
  
  /* Progress Bar wrapper */
  .extraction-progress-wrapper {
    width: 100%;
    padding: 12px;
  }

  /* Results: Playlist / Album Card */
  .playlist-card {
    padding: 20px;
  }
  .playlist-header {
    flex-direction: column;
    text-align: center;
    align-items: center;
    gap: 16px;
    padding-bottom: 16px;
  }
  .playlist-artwork {
    width: 90px;
    height: 90px;
  }
  .playlist-title-text {
    font-size: 20px;
  }
  .playlist-reset-btn {
    margin-left: 0;
    align-self: center;
    width: 100%;
    justify-content: center;
  }
  .playlist-quality-header {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    text-align: center;
  }
  .playlist-quality-select {
    width: 100%;
    text-align: center;
  }
  
  /* Playlist track items list */
  .track-row-item {
    padding: 10px 12px;
  }
  .row-index {
    width: 20px;
    font-size: 12px;
  }
  .row-artwork {
    width: 38px;
    height: 38px;
    margin-right: 12px;
  }
  .row-details {
    padding-right: 8px;
  }
  .row-title {
    font-size: 13px;
  }
  .row-artist {
    font-size: 11px;
  }
  .row-duration {
    margin-right: 12px;
    font-size: 12px;
  }
  
  /* Chrome Extension Banner */
  .extension-banner {
    margin-top: 36px;
  }
  .ext-title {
    font-size: 15px;
  }
  .ext-description {
    font-size: 12px;
  }

  /* Grid Layouts Stacked */
  .steps-grid, .features-grid, .faq-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .step-card, .feature-card {
    padding: 24px;
  }
  .faq-item {
    padding: 20px;
  }
  .faq-question {
    font-size: 15px;
  }
  
  /* Metrics Section */
  .metrics-divider-section {
    padding: 40px 0;
    margin: 40px 0;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .metric-number {
    font-size: 32px;
  }
  .metric-label {
    font-size: 11px;
  }

  /* Guides & Footer */
  .guide-article-card h3 {
    font-size: 20px;
  }
  .guide-article-card p {
    font-size: 13px;
  }
  .footer-container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .footer-links {
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  /* Ultra-small mobile fixes */
  .hero-title {
    font-size: 26px;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .row-duration {
    display: none;
  }
  .playlist-tracks-list {
    max-height: 380px;
  }
}