/* ============================================================
   DHRUV AWS PROJECT — uploadfiles.css  v2.0
   Premium cloud-dashboard Upload section
   ============================================================ */

.uploadfiles-page {
  background: transparent;
  border-radius: 20px;
  padding: 32px 36px;
  min-height: 70vh;
  animation: upfFadeIn 0.35s ease;
  font-family: 'Inter', 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
  position: relative;
}

@keyframes upfFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.upf-upload-area {
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  border: 2px dashed var(--border);
  border-radius: 20px;
  padding: 52px 36px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  margin-bottom: 32px;
  box-shadow: none;
}

.upf-upload-area:hover {
  border-color: var(--cyan-mid);
  background: var(--bg-tertiary);
  box-shadow: 0 8px 32px rgba(0,229,255,0.08);
  transform: translateY(-2px);
}

.upf-upload-area.drag-over {
  border-color: var(--cyan);
  background: rgba(0,229,255,0.06);
  box-shadow: 0 0 0 4px rgba(0,229,255,0.1), 0 12px 40px rgba(0,229,255,0.08);
  transform: scale(1.008);
}

.upf-cloud-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(0,229,255,0.12), rgba(255,153,0,0.08));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  color: var(--cyan);
  animation: upfFloat 2.8s ease-in-out infinite;
  box-shadow: 0 6px 20px rgba(0,229,255,0.15);
}

@keyframes upfFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

.upf-upload-title {
  font-family: 'Inter', 'Syne', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-white);
  margin: 0 0 8px;
  letter-spacing: -0.3px;
}

.upf-upload-sub {
  font-family: 'Inter', 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 400;
  color: var(--text-gray);
  margin: 0 0 24px;
}

.upf-upload-link {
  color: #3B82F6;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  transition: color 0.2s;
}

.upf-upload-link:hover {
  color: #2563EB;
}

.upf-browse-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #3B82F6, #2563EB);
  border: none;
  border-radius: 14px;
  padding: 14px 32px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  font-family: 'Inter', 'Syne', sans-serif;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(37,99,235,0.3);
}

.upf-browse-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(37,99,235,0.4);
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
}

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

.upf-section-title {
  font-family: 'Inter', 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.2px;
}

.upf-section-title i {
  color: var(--cyan);
  font-size: 16px;
}

.upf-progress-section {
  margin-bottom: 36px;
}

.upf-progress-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.upf-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-tertiary);
  border: 1.5px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  animation: upfCardIn 0.3s ease;
  position: relative;
}

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

.upf-card:hover {
  box-shadow: 0 6px 20px rgba(0,229,255,0.08);
  transform: translateY(-1px);
  border-color: var(--cyan-mid);
}

.upf-card.selected {
  border-color: var(--cyan);
  background: rgba(0,229,255,0.08);
  box-shadow: 0 0 0 2px rgba(0,229,255,0.15), 0 0 20px rgba(0,229,255,0.08);
  animation: upfSelectedPulse 2.5s ease-in-out infinite;
  position: relative;
}

.upf-card.selected:hover {
  border-color: var(--cyan);
  background: rgba(0,229,255,0.12);
  box-shadow: 0 0 0 2px rgba(0,229,255,0.2), 0 0 28px rgba(0,229,255,0.12);
}

@keyframes upfSelectedPulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(0,229,255,0.15), 0 0 20px rgba(0,229,255,0.06); }
  50% { box-shadow: 0 0 0 2px rgba(0,229,255,0.2), 0 0 28px rgba(0,229,255,0.1); }
}

.upf-card-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--bg-secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--cyan);
  transition: all 0.3s ease;
}

.upf-card-info {
  flex: 1;
  min-width: 0;
}

.upf-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  margin-bottom: 2px;
}

.upf-card-size {
  font-size: 12px;
  color: var(--text-gray);
  display: block;
}

.upf-progress-wrap {
  width: 200px;
  flex-shrink: 0;
}

.upf-progress-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.upf-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--aws-orange));
  border-radius: 3px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.upf-progress-fill::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: upfShimmer 1.2s infinite;
}

@keyframes upfShimmer {
  0%   { left: -100%; }
  100% { left: 200%; }
}

.upf-progress-pct {
  font-size: 12px;
  font-weight: 600;
  color: #3B82F6;
  margin-top: 4px;
  display: block;
}

.upf-status {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  min-width: 80px;
  justify-content: flex-end;
}

.upf-status.success { color: #10B981; }
.upf-status.failed { color: #EF4444; }
.upf-status.uploading { color: #3B82F6; }

.upf-card.success {
  border-color: rgba(34,197,94,0.3);
  background: linear-gradient(135deg, rgba(34,197,94,0.1), rgba(34,197,94,0.05));
}

.upf-card.success .upf-card-icon {
  background: rgba(34,197,94,0.15);
  color: var(--green);
}

.upf-card.failed {
  border-color: rgba(239,68,68,0.3);
  background: linear-gradient(135deg, rgba(239,68,68,0.1), rgba(239,68,68,0.05));
  box-shadow: 0 2px 12px rgba(239,68,68,0.08);
}

.upf-card.failed .upf-card-icon {
  background: rgba(239,68,68,0.15);
  color: var(--red);
}

.upf-card.failed .upf-card-name { color: var(--text-white); }
.upf-card.failed .upf-card-size { color: var(--text-gray); }

.upf-error-msg {
  font-size: 11px;
  color: var(--red);
  margin-top: 4px;
  display: block;
}

@keyframes upfMenuIn {
  0%   { opacity: 0; transform: scale(0.85) translateY(-6px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes upfMenuOut {
  0%   { opacity: 1; transform: scale(1) translateY(0); }
  100% { opacity: 0; transform: scale(0.85) translateY(-6px); }
}

/* ═══════════════════════════════════════════════
   Context menu styles are now in js/context-menu.js (self-injected)
   ═══════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════
   FILE VIEWER OVERLAY (matching website theme)
   ═══════════════════════════════════════════════ */
.upf-viewer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  animation: upfOverlayIn 0.2s ease;
}

@keyframes upfOverlayIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.upf-viewer-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  max-width: 750px;
  width: 92%;
  max-height: 85vh;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 30px rgba(0,229,255,0.08);
  display: flex;
  flex-direction: column;
  animation: upfModalIn 0.25s ease;
}

@keyframes upfModalIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.upf-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.upf-viewer-filename {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-white);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: 12px;
}

.upf-viewer-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-gray);
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.upf-viewer-close:hover {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.3);
  color: #EF4444;
}

.upf-viewer-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  position: relative;
}

.upf-viewer-preview {
  text-align: center;
  width: 100%;
}

.upf-viewer-preview img {
  max-width: 100%;
  max-height: 55vh;
  border-radius: 8px;
  object-fit: contain;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.upf-viewer-preview video {
  max-width: 100%;
  max-height: 55vh;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.upf-viewer-preview iframe {
  width: 100%;
  height: 55vh;
  border: none;
  border-radius: 8px;
}

.upf-viewer-preview audio {
  width: 100%;
  max-width: 400px;
}

.upf-viewer-meta {
  display: flex;
  gap: 16px;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-gray);
}

/* Navigation controls */
.upf-viewer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

.upf-viewer-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-gray);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.upf-viewer-nav-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--cyan-mid);
  color: var(--cyan);
}

.upf-viewer-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.upf-viewer-counter {
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 500;
}

.upf-recent-section {
  margin-bottom: 16px;
}

.upf-recent-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.upf-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-gray);
}

.upf-empty i {
  font-size: 42px;
  display: block;
  margin-bottom: 12px;
  color: var(--text-dim);
}

.upf-empty p {
  font-size: 14px;
  margin: 0;
}

@media (max-width: 1200px) {
  .uploadfiles-page { padding: 28px 28px; }
}

@media (max-width: 1024px) {
  .uploadfiles-page { padding: 24px; }
  .upf-progress-wrap { width: 120px; }
  .upf-upload-area { padding: 40px 28px; }
}

@media (max-width: 900px) {
  .upf-viewer-modal { max-width: 94%; }
  .upf-viewer-body { padding: 18px; }
  .upf-viewer-preview img { max-height: 45vh; }
  .upf-viewer-preview video { max-height: 45vh; }
  .upf-viewer-preview iframe { height: 45vh; }
}

@media (max-width: 768px) {
  .uploadfiles-page { padding: 20px 16px; border-radius: 12px; min-height: auto; }
  .upf-upload-area { padding: 36px 20px; }
  .upf-upload-title { font-size: 20px; }
  .upf-upload-sub { font-size: 14px; }
  .upf-cloud-icon { width: 68px; height: 68px; font-size: 28px; }
  .upf-card { flex-wrap: wrap; gap: 10px; }
  .upf-progress-wrap { width: 100%; order: 3; }
  .upf-status { min-width: auto; }
  .upf-card-icon { width: 38px; height: 38px; font-size: 16px; }
  .upf-card-name { font-size: 13px; }
  .upf-card-size { font-size: 11px; }
  .upf-section-title { font-size: 16px; margin-bottom: 14px; }
  .upf-viewer-modal { width: 100%; border-radius: 0; border: none; max-height: 100vh; }
  .upf-viewer-nav { flex-wrap: wrap; padding: 10px 14px; }
  .upf-viewer-nav-btn { padding: 6px 10px; font-size: 11px; }
  .upf-viewer-header { padding: 12px 14px; }
  .upf-viewer-filename { font-size: 13px; }
  .upf-viewer-body { padding: 14px; }
  .upf-viewer-meta { padding: 8px 14px; font-size: 10px; flex-wrap: wrap; gap: 8px; }
  .upf-browse-btn { padding: 12px 24px; font-size: 14px; }
  
  /* Bulk bar */
  #upfBulkBar { flex-wrap: wrap; }
  #upfBulkBar .dm-btn { font-size: 10px; padding: 5px 8px; }
}

@media (max-width: 600px) {
  .uploadfiles-page { padding: 14px 10px; }
  .upf-upload-area { padding: 28px 14px; }
  .upf-cloud-icon { width: 60px; height: 60px; font-size: 24px; }
  .upf-upload-title { font-size: 18px; }
  .upf-upload-sub { font-size: 13px; }
  .upf-upload-link { font-size: 13px; }
  .upf-browse-btn { padding: 10px 20px; font-size: 13px; border-radius: 10px; }
  .upf-section-title { font-size: 15px; }
  .upf-card { padding: 12px 14px; }
  .upf-progress-wrap { width: 100%; }
  .upf-progress-track { height: 4px; }
  .upf-viewer-preview img { max-height: 40vh; }
  .upf-viewer-preview video { max-height: 40vh; }
  .upf-viewer-preview iframe { height: 40vh; }
}

@media (max-width: 400px) {
  .uploadfiles-page { padding: 10px 6px; }
  .upf-upload-area { padding: 20px 10px; }
  .upf-cloud-icon { width: 52px; height: 52px; font-size: 20px; }
  .upf-upload-title { font-size: 16px; }
  .upf-upload-sub { font-size: 12px; }
  .upf-browse-btn { padding: 8px 16px; font-size: 12px; }
  .upf-card-icon { width: 32px; height: 32px; font-size: 14px; }
  .upf-card-name { font-size: 12px; }
  .upf-card-size { font-size: 10px; }
  .upf-section-title { font-size: 14px; }
  .upf-status { font-size: 11px; }
}