/**
 * Universal Media Downloader - Premium Minimalist Design
 * Modern UI with gradients, smooth animations, and responsive layout
 */

:root {
  --umd-primary: #3b82f6;
  --umd-primary-dark: #2563eb;
  --umd-secondary: #8b5cf6;
  --umd-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --umd-gradient-hover: #3b82f6;
  --umd-surface: #ffffff;
  --umd-surface-alt: #f8fafc;
  --umd-border: #e2e8f0;
  --umd-text: #1e293b;
  --umd-text-light: #64748b;
  --umd-success: #10b981;
  --umd-error: #ef4444;
  --umd-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --umd-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --umd-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --umd-radius: 12px;
  --umd-radius-sm: 8px;
}

.umd-form {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px;
  background: var(--umd-surface);
  border: 1px solid var(--umd-border);
  border-radius: var(--umd-radius);
  box-shadow: var(--umd-shadow);
  transition: all 0.3s ease;
}

.umd-form:hover {
  box-shadow: var(--umd-shadow-lg);
}

.umd-label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--umd-text);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.umd-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--umd-text);
  background: var(--umd-surface);
  border: 2px solid var(--umd-border);
  border-radius: var(--umd-radius-sm);
  margin-bottom: 16px;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.umd-input:focus {
  outline: none;
  border-color: var(--umd-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.umd-input::placeholder {
  color: var(--umd-text-light);
}

.umd-btn { width:100%;
  width: 100%;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background: var(--umd-gradient);
  border: none;
  border-radius: var(--umd-radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--umd-shadow-sm);
  position: relative;
  overflow: hidden;
}

.umd-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--umd-gradient-hover);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.umd-btn:hover::before {
  opacity: 1;
}

.umd-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--umd-shadow);
}

.umd-btn:active {
  transform: translateY(0);
}

.umd-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.umd-btn span {
  position: relative;
  z-index: 1;
}

.umd-progress {
  margin-top: 20px;
  height: 8px;
  background: var(--umd-surface-alt);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.umd-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 999px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.umd-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: umd-shimmer 1.5s infinite;
}

@keyframes umd-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.umd-progress-text {
  position: absolute;
  left: 50%;
  top: -28px;
  transform: translateX(-50%);
  font-size: 13px;
  font-weight: 500;
  color: var(--umd-text);
  white-space: nowrap;
}

.umd-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--umd-radius-sm);
  font-size: 14px;
  font-weight: 500;
  background: var(--umd-surface-alt);
  color: var(--umd-text);
}

.umd-status.error {
  background: #fef2f2;
  color: var(--umd-error);
  border: 1px solid #fecaca;
}

.umd-result {
  margin-top: 24px;
  animation: umd-fadein 0.4s ease;
}

@keyframes umd-fadein {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.umd-card {
  background: var(--umd-surface);
  border: 1px solid var(--umd-border);
  border-radius: var(--umd-radius);
  overflow: hidden;
  box-shadow: var(--umd-shadow);
  transition: all 0.3s ease;
}

.umd-card:hover {
  box-shadow: var(--umd-shadow-lg);
}

.umd-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-bottom: 1px solid var(--umd-border);
  gap: 16px;
}

.umd-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--umd-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.umd-meta {
  font-size: 13px;
  font-weight: 500;
  color: var(--umd-text-light);
  white-space: nowrap;
}

.umd-card-body {
  padding: 20px;
}

.umd-preview {
  display: flex;
  justify-content: center;
  align-items: center;
  background: none;
  border-radius: var(--umd-radius-sm);
  padding: 20px;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}

.umd-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.umd-preview img,
.umd-preview video {
  max-width: 100%;
  max-height: 500px;
  border-radius: var(--umd-radius-sm);
  display: block;
  box-shadow: 0 4px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 1;
}

.umd-preview .umd-meta {
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  z-index: 1;
}

.umd-actions { display:flex; gap:12px; margin-top:20px; justify-content:center; flex-wrap:nowrap; flex-direction:column; }

.umd-btn-primary { width:100%;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background: var(--umd-gradient);
  border: none;
  border-radius: var(--umd-radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--umd-shadow-sm);
  position: relative;
  overflow: hidden;
}

.umd-btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--umd-gradient-hover);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.umd-btn-primary:hover::before {
  opacity: 1;
}

.umd-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--umd-shadow);
}

.umd-btn-primary span {
  position: relative;
  z-index: 1;
}

.umd-btn-dark { width:100%;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background: var(--umd-text);
  border: none;
  border-radius: var(--umd-radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--umd-shadow-sm);
}

.umd-btn-dark:hover {
  background: #334155;
  transform: translateY(-2px);
  box-shadow: var(--umd-shadow);
}

@media (max-width: 768px) {
  .umd-form {
    padding: 24px 20px;
  }
  
  .umd-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .umd-card-title {
    white-space: normal;
  }
  
  .umd-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .umd-btn-primary,
  .umd-btn-dark {
    width: 100%;
  }
  
  .umd-preview img,
  .umd-preview video {
    max-height: 300px;
  }
}

@media (max-width: 480px) {
  .umd-form {
    padding: 20px 16px;
  }
  
  .umd-input,
  .umd-btn {
    font-size: 14px;
  }
}

/* Icon button layout */
.umd-btn-icon { display:inline-flex; align-items:center; justify-content:center; gap:8px; }
.umd-btn-icon svg{ flex:0 0 auto; }


/* --- UMD Tabs (multi-image) --- */
.umd-tabs{display:flex;gap:14px;padding:12px 16px;background:var(--umd-surface-alt,#f8fafc);
  border-radius: var(--umd-radius,10px);margin:8px 0 16px;flex-wrap:wrap;border:1px solid var(--umd-border,#e5e7eb);}
.umd-tab{border:0;background:transparent;padding:8px 10px;border-radius:8px;font-weight:600;cursor:pointer;color:#475569;}
.umd-tab.active{color:#111827;background:rgba(99,102,241,0.12);}
.umd-tab:hover{color:#111827;}


/* Text visibility fix: keep button label above overlay and white on hover */
.umd-btn__text { position: relative; z-index: 1; }
.umd-btn, .umd-btn:visited, .umd-btn:hover, .umd-btn:focus { color: #ffffff !important; }
.umd-btn * { color: #ffffff !important; }
/* Hover color fix (added) */
.umd-btn:hover::before { background:#3b82f6 !important; opacity:1 !important; }
.umd-btn:hover { background:#3b82f6 !important; }

/* Separator label for actions section */
.umd-sep {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 6px 0 2px;
  color: var(--umd-text-light);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.umd-sep::before,
.umd-sep::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--umd-border);
}