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

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-tertiary: #1f1f1f;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --border: #2a2a2a;
  --success: #22c55e;
  --error: #ef4444;
  --radius: 8px;
  --transition: 0.2s ease;
}

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;
}

.screen {
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* Login Screen */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: var(--bg-secondary);
  padding: 48px;
  border-radius: 16px;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-container h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

input[type="password"],
input[type="text"] {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
}

input[type="password"]:focus,
input[type="text"]:focus {
  border-color: var(--accent);
}

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition);
}

button:hover {
  background: var(--accent-hover);
}

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

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

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

.error {
  color: var(--error);
  font-size: 14px;
}

/* CMS Screen */
#cms-screen {
  display: flex;
  flex-direction: column;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

header h1 {
  font-size: 24px;
  font-weight: 600;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  flex-wrap: wrap;
}

.tab {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
}

.tab:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.tab.active {
  background: var(--accent);
  color: white;
}

/* Content Area */
#content {
  flex: 1;
  overflow-y: auto;
}

.section {
  display: none;
}

.section.active {
  display: block;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
}

.card h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
  font-family: inherit;
}

/* Image Selector */
.image-selector {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.image-preview {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.image-name {
  flex: 1;
  min-width: 150px;
  font-size: 14px;
  color: var(--text-secondary);
  word-break: break-all;
}

.btn-select-image {
  padding: 8px 16px;
  font-size: 14px;
}

/* Image Array */
.image-array {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.image-array-item {
  position: relative;
  width: 100px;
  height: 100px;
}

.image-array-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.image-array-item .remove-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  padding: 0;
  border-radius: 50%;
  background: var(--error);
  font-size: 14px;
  line-height: 1;
}

.add-image-btn {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  font-size: 32px;
  cursor: pointer;
}

.add-image-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}

/* Actions */
.actions {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  margin-top: 24px;
}

#save-status {
  font-size: 14px;
  color: var(--text-secondary);
}

#save-status.success {
  color: var(--success);
}

#save-status.error {
  color: var(--error);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 16px;
  width: 100%;
  max-width: 900px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  font-size: 24px;
  color: var(--text-secondary);
}

.modal-close:hover {
  color: var(--text-primary);
  background: transparent;
}

.modal-search {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-search input {
  width: 100%;
}

.image-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px;
  overflow-y: auto;
  flex: 1;
  align-content: flex-start;
}

.image-grid-item {
  position: relative;
  width: calc((100% - 24px) / 3);
  height: 0;
  padding-bottom: calc((100% - 24px) / 3);
  cursor: pointer;
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
  flex-shrink: 0;
}

.image-grid-item:hover {
  border-color: var(--accent);
  transform: scale(1.02);
}

.image-grid-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-grid-item .image-label {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  background: rgba(0, 0, 0, 0.75);
  font-size: 11px;
  color: var(--text-primary);
  text-align: center;
  word-break: break-all;
  opacity: 0;
  transition: opacity var(--transition);
}

.image-grid-item:hover .image-label {
  opacity: 1;
}

/* Portfolio Items */
.portfolio-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.portfolio-item .portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.portfolio-item h3 {
  font-size: 16px;
  font-weight: 600;
}

.portfolio-item .remove-portfolio-btn {
  background: var(--error);
  padding: 6px 12px;
  font-size: 12px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

/* Titles List */
.titles-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.title-item {
  display: flex;
  gap: 8px;
}

.title-item input {
  flex: 1;
}

.title-item .remove-btn {
  width: 40px;
  padding: 0;
  background: var(--error);
}

.add-title-btn {
  margin-top: 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover:not(:disabled) {
  background: var(--border);
  color: var(--text-primary);
}

.btn-icon:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  margin-bottom: 16px;
  font-size: 14px;
}

.breadcrumb-link {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: var(--radius);
  font-size: 14px;
  transition: background var(--transition);
}

.breadcrumb-link:hover {
  background: var(--bg-tertiary);
}

.breadcrumb-separator {
  color: var(--text-secondary);
}

.breadcrumb-current {
  color: var(--text-primary);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.content-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
}

.content-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-tertiary);
}

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

.card-info {
  padding: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Detail View */
.detail-view {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Sub Tabs (for Home page) */
.sub-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.sub-tab {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
}

.sub-tab:hover {
  background: var(--border);
  color: var(--text-primary);
}

.sub-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* Add Portfolio Button in Grid */
.add-portfolio-grid-btn {
  margin-bottom: 16px;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: 14px;
  color: var(--text-primary);
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  pointer-events: auto;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.toast-visible {
  opacity: 1;
  transform: translateX(0);
}

.toast-success {
  border-left: 3px solid var(--success);
}

.toast-error {
  border-left: 3px solid var(--error);
}

.toast-info {
  border-left: 3px solid var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  #cms-screen {
    padding: 16px;
  }

  .login-container {
    padding: 32px 24px;
    margin: 16px;
  }

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

  .image-selector {
    flex-direction: column;
    align-items: flex-start;
  }

  .image-grid-item {
    width: calc((100% - 12px) / 2);
    padding-bottom: calc((100% - 12px) / 2);
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }

  .sub-tabs {
    flex-wrap: wrap;
  }

  #toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  .toast {
    transform: translateY(100%);
  }

  .toast-visible {
    transform: translateY(0);
  }
}