/* Original website CSS preserved and moved from index.html. */
:root {
  --bg-color: #f4f7f9;
  --card-bg: #ffffff;
  --text-color: #1a1a1a;
  --text-muted-color: #6c757d;
  --input-bg: #e9ecef;
  --input-border: #ced4da;
  --input-focus-glow: rgba(0, 123, 255, 0.25);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --primary-accent-start: #8a2be2;
  --primary-accent-end: #00bfff;
  --neon-glow-color: transparent;
  --neon-text-shadow: none;
}

[data-theme="dark"] {
  --bg-color: #0F0F17;
  --card-bg: #1a1a24;
  --text-color: #e0e0e0;
  --text-muted-color: #888899;
  --input-bg: #2a2a3a;
  --input-border: #2c2c3a;
  --input-focus-glow: rgba(138, 43, 226, 0.4);
  --shadow-color: rgba(0, 0, 0, 0.2);
}

[data-theme="cyber"] {
  --bg-color: #000000;
  --card-bg: #0a0a0a;
  --text-color: #ffffff;
  --text-muted-color: #a0a0ff;
  --input-bg: #101010;
  --input-border: #00ffff;
  --input-focus-glow: rgba(0, 255, 255, 0.5);
  --shadow-color: rgba(0, 255, 255, 0.1);
  --primary-accent-start: #ff00ff;
  --primary-accent-end: #00ffff;
  --neon-glow-color: #00ffff;
  --neon-text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff, 0 0 15px #ff00ff;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.hidden {
  display: none !important;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 2rem;
}

.logo {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  box-shadow: 0 4px 15px var(--shadow-color);
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.1);
}

.theme-switcher {
  display: flex;
  gap: 0.5rem;
  background-color: var(--card-bg);
  padding: 0.25rem;
  border-radius: 20px;
  box-shadow: 0 2px 8px var(--shadow-color);
}

.theme-switcher button {
  border: none;
  background-color: transparent;
  color: var(--text-muted-color);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 15px;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.theme-switcher button.active {
  background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
  color: white;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.supported-platforms {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 0.75rem;
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-muted-color);
  margin-bottom: 1.5rem;
}

.supported-platforms strong {
  color: var(--text-color);
}

.platform-icons-showcase {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
  color: var(--text-muted-color);
}

.download-form {
  position: relative;
}

.url-input {
  width: 100%;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 1px solid var(--input-border);
  border-radius: 16px;
  background-color: var(--input-bg);
  color: var(--text-color);
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow-color);
}

.url-input:focus {
  outline: none;
  border-color: var(--primary-accent-start);
  box-shadow: 0 0 0 4px var(--input-focus-glow), 0 4px 15px var(--shadow-color);
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  padding: 1rem 2.5rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px -6px color-mix(in srgb, var(--primary-accent-start) 50%, var(--primary-accent-end) 50%);
}

.download-button:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 25px -8px color-mix(in srgb, var(--primary-accent-start) 50%, var(--primary-accent-end) 50%);
}

.download-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.download-button .spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.recent-toggle-wrapper {
  margin-top: 1.5rem;
  text-align: center;
}

#toggle-recents-btn {
  background-color: transparent;
  border: 1px solid var(--input-border);
  color: var(--text-muted-color);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

#toggle-recents-btn:hover {
  background-color: var(--input-bg);
  color: var(--text-color);
}

.results-section {
  margin-top: 3rem;
  animation: fadeIn 0.5s ease-out;
}

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

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

.preview-card {
  background-color: var(--card-bg);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 8px 30px var(--shadow-color);
}

.preview-header {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--input-border);
  margin-bottom: 1rem;
}

.preview-thumbnail {
  width: 90px;
  height: 90px;
  object-fit: cover;
  border-radius: 12px;
  flex-shrink: 0;
}

.preview-info {
  min-width: 0;
}

.preview-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  overflow-wrap: break-word;
}

.preview-meta {
  color: var(--text-muted-color);
  font-size: 0.9rem;
}

.media-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--input-border);
}

.media-item:last-child {
  border-bottom: none;
}

.media-quality {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.format-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary-accent-start);
  background-color: transparent;
  border: 1px solid var(--primary-accent-start);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.format-download-btn:hover {
  background-color: var(--primary-accent-start);
  color: white;
}

.progress-indicator {
  position: relative;
  font-size: 0.85rem;
  color: var(--text-muted-color);
  width: 100px;
  text-align: right;
}

.hashtags-container {
  margin-top: 1rem;
}

.hashtags-container label {
  font-weight: 600;
  color: var(--text-color);
  display: block;
  margin-bottom: 0.5rem;
}

.hashtags-area {
  width: 100%;
  height: 100px;
  padding: 0.75rem;
  border-radius: 8px;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-muted-color);
  font-family: inherit;
  resize: vertical;
  font-size: 0.9rem;
}

.recent-downloads-section {
  margin-top: 1.5rem;
}

.recent-downloads-grid {
  display: grid;
  gap: 1rem;
}

.recent-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 0.75rem;
  box-shadow: 0 4px 15px var(--shadow-color);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform 0.2s ease-out;
  cursor: pointer;
}

.recent-card:hover {
  transform: translateY(-3px);
}

.recent-thumbnail {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}

.recent-info {
  flex-grow: 1;
  overflow: hidden;
}

.recent-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.9rem;
  font-weight: 500;
}

.re-download-icon {
  font-size: 1.2rem;
  color: var(--text-muted-color);
  transition: color 0.2s ease;
}

.recent-card:hover .re-download-icon {
  color: var(--primary-accent-end);
}

.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-muted-color);
  font-size: 0.9rem;
}

.footer a {
  color: var(--primary-accent-end);
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  text-decoration: underline;
}

.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.popup-overlay:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.popup-box {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 10px 40px var(--shadow-color);
  text-align: center;
  max-width: 400px;
  width: 90%;
  transform: scale(0.9);
  transition: transform 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

.popup-overlay:not(.hidden) .popup-box {
  transform: scale(1);
}

.popup-box h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.popup-box p {
  color: var(--text-muted-color);
  margin-bottom: 1.5rem;
}

.popup-icon {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.popup-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.popup-btn-primary,
.popup-btn-secondary {
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.popup-btn-primary {
  background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
  color: white;
  box-shadow: 0 4px 15px -5px color-mix(in srgb, var(--primary-accent-start) 50%, var(--primary-accent-end) 50%);
}

.popup-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--primary-accent-start) 50%, var(--primary-accent-end) 50%);
}

.popup-btn-secondary {
  background-color: var(--input-bg);
  color: var(--text-color);
}

.popup-btn-secondary:hover {
  background-color: color-mix(in srgb, var(--input-bg) 80%, #000 20%);
}

@media (max-width: 768px) {
  .container {
    padding: 1.5rem 1rem;
  }

  .url-input {
    padding: 0.9rem 1rem;
  }

  .platform-icons-showcase {
    font-size: 1.5rem;
    gap: 1rem;
  }

  .preview-thumbnail {
    width: 70px;
    height: 70px;
  }

  .preview-title {
    font-size: 1.1rem;
  }
}

/* ========== PWA INSTALL POPUP SYSTEM ========== */
.popup-overlay.pwa-install-overlay {
  z-index: 350 !important;
  background-color: rgba(0,0,0,.6);
}
.popup-overlay.pwa-install-overlay:not(.hidden) { opacity:1; visibility:visible; display:flex !important; }
.pwa-install-overlay .popup-content {
  position: relative;
  width: min(92%, 380px);
  padding: 2rem;
  background: var(--card-bg);
  color: var(--text-color);
  border-radius: 16px;
  box-shadow: 0 10px 40px var(--shadow-color);
  transform: scale(.9);
  transition: transform .3s cubic-bezier(.18,.89,.32,1.28);
}
.pwa-install-overlay:not(.hidden) .popup-content { transform:scale(1); }
.pwa-install-overlay .popup-close-btn {
  position:absolute;
  top:10px;
  right:12px;
  border:0;
  background:transparent;
  color:var(--text-muted-color);
  font-size:1.2rem;
  cursor:pointer;
}
.pwa-install-overlay .popup-content img {
  display:block;
  object-fit:cover;
}
.pwa-install-overlay .btn-premium,
.pwa-install-overlay .not-now-btn {
  font-family:inherit;
}
.pwa-install-overlay .btn-premium {
  border:0;
  border-radius:50px;
  padding:1rem 1.25rem;
  cursor:pointer;
  font-weight:700;
  color:#fff;
  background:linear-gradient(45deg,var(--primary-accent-start),var(--primary-accent-end));
  box-shadow:0 8px 20px -6px color-mix(in srgb,var(--primary-accent-start) 50%,var(--primary-accent-end) 50%);
}
.pwa-install-overlay .not-now-btn {
  display:block;
  margin:1rem auto 0;
  border:0;
  background:transparent;
  color:var(--text-muted-color);
  cursor:pointer;
  font-size:.95rem;
}
.pwa-install-overlay .text-center { text-align:center; }
.pwa-install-overlay .text-xl { font-size:1.25rem; }
.pwa-install-overlay .font-bold { font-weight:700; }
.pwa-install-overlay .text-sm { font-size:.875rem; }
.pwa-install-overlay .text-gray-500 { color:var(--text-muted-color); }
.pwa-install-overlay .w-full { width:100%; }
.pwa-install-overlay .mb-2 { margin-bottom:.5rem; }
.pwa-install-overlay .mb-4 { margin-bottom:1rem; }
.pwa-install-overlay .mb-6 { margin-bottom:1.5rem; }
.pwa-install-overlay .w-20 { width:5rem; }
.pwa-install-overlay .h-20 { height:5rem; }
.pwa-install-overlay .mx-auto { margin-left:auto; margin-right:auto; }
.pwa-install-overlay .rounded-2xl { border-radius:1rem; }
.pwa-install-overlay .shadow-lg { box-shadow:0 10px 25px var(--shadow-color); }
.pwa-install-overlay .max-w-sm { max-width:24rem; }