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

:root {
  --bg-primary: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #252525;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --danger: #ef4444;
  --success: #22c55e;
  --border: #333;
  --shadow: rgba(0, 0, 0, 0.3);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-box {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 24px var(--shadow);
}

.login-box h1 {
  text-align: center;
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.login-box .subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
  width: 100%;
}

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--border);
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.error-message {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 0.75rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  display: none;
}

.error-message.show {
  display: block;
}

.success-message {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
  padding: 0.75rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  display: none;
}

.success-message.show {
  display: block;
}

.header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header h1 {
  font-size: 1.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2500;
  padding: 1rem;
}

.modal {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 24px var(--shadow);
}

.modal h2 {
  margin-bottom: 0.5rem;
}

.modal .subtitle {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.modal-hidden {
  display: none;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.media-card {
  background: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.media-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

.media-card-thumb {
  aspect-ratio: 1;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.media-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-card-thumb .placeholder {
  color: var(--text-secondary);
  font-size: 2rem;
}

.video-indicator {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background: rgba(0, 0, 0, 0.7);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.media-card-info {
  padding: 0.75rem;
}

.media-card-info .name {
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-card-info .desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.25rem;
}

.albums-section {
  margin-bottom: 2rem;
}

.albums-section h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.albums-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
}

.album-card {
  background: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
}

.album-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow);
}

.album-card-cover {
  aspect-ratio: 16/9;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.album-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.album-card-cover .placeholder {
  color: var(--text-secondary);
  font-size: 2rem;
}

.album-card-info {
  padding: 1rem;
}

.album-card-info .name {
  font-weight: 500;
}

.album-card-info .count {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.album-card-info .desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.upload-area {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  margin-bottom: 1.5rem;
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.05);
}

.upload-area input {
  display: none;
}

.upload-area .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.upload-area .text {
  color: var(--text-secondary);
}

.upload-progress {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.upload-progress .filename {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.progress-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill,
.progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.2s;
}

.progress-container {
  margin-bottom: 1.5rem;
}

.progress-status {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
}

.viewer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: flex;
  flex-direction: column;
}

.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.5);
}

.viewer-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  overflow: hidden;
}

.viewer-content img,
.viewer-content video {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.file-download-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
}

.file-download-container .file-icon {
  font-size: 4rem;
}

.file-download-container .file-name {
  font-size: 1.25rem;
  font-weight: 500;
  word-break: break-all;
  max-width: 400px;
}

.file-download-container .file-size {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.viewer-info {
  padding: 1rem;
  background: var(--bg-secondary);
  max-height: 150px;
  overflow-y: auto;
}

.viewer-info .name {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.viewer-info .desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.viewer-hidden {
  display: none;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 0.5rem;
}

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

.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.form-actions .btn {
  flex: 1;
}

.privacy-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, visibility 0.15s;
}

.privacy-overlay.active {
  opacity: 1;
  visibility: visible;
}

.privacy-overlay .lock-icon {
  font-size: 4rem;
  opacity: 0.5;
}

.privacy-overlay .lock-text {
  color: var(--text-secondary);
  font-size: 1rem;
}

.content-locked {
  position: relative;
}

.content-locked::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-primary);
  opacity: 0.9;
  z-index: 50;
  pointer-events: none;
}

.content-locked * {
  filter: blur(8px);
  pointer-events: none;
  user-select: none;
}

.content-unlocked::after {
  display: none;
}

.content-unlocked * {
  filter: none;
  pointer-events: auto;
  user-select: auto;
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.5rem;
  }

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

  .header {
    padding: 0.75rem;
  }

  .header-content {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .header h1 {
    font-size: 1rem;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .header-actions .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .main {
    padding: 0.75rem;
  }

  .upload-area {
    padding: 1.5rem 1rem;
  }

  .upload-area .icon {
    font-size: 2rem;
  }

  .upload-area .text {
    font-size: 0.875rem;
  }

  .media-card-thumb {
    aspect-ratio: 1;
  }

  .media-card-info {
    padding: 0.5rem;
  }

  .media-card-info .name {
    font-size: 0.75rem;
  }

  .media-card-info .desc {
    display: none;
  }

  .modal {
    padding: 1.25rem;
    margin: 0.5rem;
    max-height: 90vh;
    overflow-y: auto;
  }

  .modal h2 {
    font-size: 1.1rem;
  }

  .viewer-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem;
  }

  .viewer-header #viewerTitle {
    font-size: 0.875rem;
    word-break: break-all;
  }

  .viewer-header > div {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    width: 100%;
  }

  .viewer-header .btn {
    padding: 0.4rem 0.6rem;
    font-size: 0.75rem;
    flex: 1;
    min-width: auto;
  }

  .viewer-content {
    padding: 0.25rem;
  }

  .viewer-content video {
    width: 100%;
  }

  .viewer-info {
    padding: 0.75rem;
    max-height: 100px;
  }

  .viewer-info .name {
    font-size: 0.875rem;
  }

  .viewer-info .desc {
    font-size: 0.75rem;
  }

  .login-box {
    padding: 1.5rem;
    margin: 0.5rem;
  }

  .login-box h1 {
    font-size: 1.25rem;
  }

  .btn {
    padding: 0.875rem 1rem;
    min-height: 44px;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    min-height: 44px;
    font-size: 16px;
  }

  .albums-section h2,
  .main > section > h2 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
  }

  .album-card-info {
    padding: 0.75rem;
  }

  .album-card-info .name {
    font-size: 0.875rem;
  }

  .toast-container {
    bottom: 0.5rem;
    right: 0.5rem;
    left: 0.5rem;
  }

  .toast {
    font-size: 0.875rem;
  }
}

@media (max-width: 400px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.35rem;
  }

  .header h1 {
    font-size: 0.875rem;
  }

  .header-actions .btn {
    padding: 0.4rem 0.5rem;
    font-size: 0.7rem;
  }

  .upload-area {
    padding: 1rem;
  }

  .upload-area .icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }

  .upload-area .text {
    font-size: 0.75rem;
  }
}

@media (hover: none) {
  .media-card:hover,
  .album-card:hover {
    transform: none;
    box-shadow: none;
  }

  .media-card:active,
  .album-card:active {
    transform: scale(0.98);
    opacity: 0.9;
  }
}

.toast-container {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--shadow);
  animation: slideIn 0.2s ease;
}

.toast.success {
  border-color: var(--success);
}

.toast.error {
  border-color: var(--danger);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.buffering {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.5);
}

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

.twofa-container h2 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.twofa-instruction {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.5;
}

.qr-container {
  background: white;
  border-radius: 12px;
  padding: 1rem;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.qr-code-img {
  display: block;
  width: 200px;
  height: 200px;
}

.twofa-manual {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 1.5rem;
  word-break: break-all;
}

.twofa-manual code {
  display: block;
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: var(--bg-tertiary);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.twofa-container .form-group {
  text-align: left;
  margin-bottom: 1.5rem;
}

.twofa-container .form-group input {
  text-align: center;
  font-size: 1.5rem;
  letter-spacing: 0.3em;
  font-family: monospace;
}

.twofa-hint {
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-top: 1rem;
}

.twofa-warning {
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 1rem;
  font-weight: 500;
}

.backup-codes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin: 1.5rem 0;
  text-align: center;
}

.backup-code {
  display: block;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border-radius: 6px;
  font-family: monospace;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.1em;
}

@media (max-width: 768px) {
  .qr-code-img {
    width: 160px;
    height: 160px;
  }

  .twofa-container .form-group input {
    font-size: 1.25rem;
  }

  .backup-codes {
    grid-template-columns: 1fr;
  }

  .backup-code {
    font-size: 0.9rem;
  }
}