/* === CYBERPUNK THEME === */
:root {
  --bg: #0a0e14;
  --bg-grid: #0d1117;
  --surface: #0f1419;
  --surface-elevated: #151b23;
  --border: #1e2833;
  --border-neon: #00f5ff;
  --text: #e2e8f0;
  --text-dim: #64748b;
  --accent: #00f5ff;
  --accent-glow: rgba(0, 245, 255, 0.5);
  --accent-magenta: #ff00aa;
  --accent-magenta-glow: rgba(255, 0, 170, 0.4);
  --accent-hover: #33faff;
  --success: #00ff88;
  --success-glow: rgba(0, 255, 136, 0.35);
  --error: #ff3366;
  --error-glow: rgba(255, 51, 102, 0.4);
  --radius: 2px;
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 245, 255, 0.08), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  position: relative;
  z-index: 1;
}

.layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.layout .main {
  flex: 1;
  min-width: 0;
}

.preview-sidebar {
  width: 340px;
  flex-shrink: 0;
  position: sticky;
  top: 2rem;
}

.preview-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-display);
}

.preview-panel {
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1rem;
  box-shadow: 0 0 20px rgba(0, 245, 255, 0.08);
}

.preview-message {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.preview-avatar {
  width: 40px;
  height: 40px;
  border-radius: 2px;
  background: var(--accent);
  flex-shrink: 0;
  overflow: hidden;
  box-shadow: 0 0 12px var(--accent-glow);
}

.preview-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-body {
  flex: 1;
  min-width: 0;
}

.preview-username {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
}

.preview-embed {
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
}

.preview-embed-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.preview-embed-inner {
  padding: 0.5rem 0.75rem 0.75rem;
  margin-left: 4px;
}

.preview-content {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 0.25rem;
}

.preview-content:empty {
  display: none;
}

.preview-embed-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.preview-embed-author {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.preview-embed-author:empty {
  display: none;
}

.preview-embed-author img {
  width: 24px;
  height: 24px;
  border-radius: 2px;
}

.preview-embed-author a {
  color: var(--accent);
}

.preview-embed-thumb {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.preview-embed-thumb:empty {
  display: none;
}

.preview-embed-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-embed-fields {
  display: grid;
  gap: 0.25rem 1rem;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

.preview-embed-fields:empty {
  display: none;
}

.preview-embed-fields.inline-grid {
  grid-template-columns: repeat(3, 1fr);
}

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

.preview-field-name {
  color: var(--text-dim);
  margin-bottom: 0.1rem;
}

.preview-field-value {
  color: var(--text);
}

.preview-embed-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
}

.preview-embed-title:empty {
  display: none;
}

.preview-embed-desc {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
}

.preview-embed-desc:empty {
  display: none;
}

.preview-embed-desc a {
  color: var(--accent);
}

.preview-embed-desc code {
  background: var(--bg);
  padding: 0.1em 0.3em;
  border: 1px solid var(--border);
  font-size: 0.85em;
}

.preview-embed-image {
  margin-top: 0.5rem;
  overflow: hidden;
  border: 1px solid var(--border);
  max-height: 200px;
}

.preview-embed-image img {
  width: 100%;
  display: block;
  vertical-align: top;
}

.preview-embed-image:empty {
  display: none;
}

.preview-embed-footer {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
}

.preview-embed-footer:empty {
  display: none;
}

@media (max-width: 900px) {
  .layout {
    flex-direction: column;
  }

  .preview-sidebar {
    width: 100%;
    position: static;
  }
}

/* === HEADER === */
.header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.header h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--text);
  text-shadow: 0 0 30px var(--accent-glow);
  letter-spacing: 0.05em;
}

.subtitle {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.user-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.user-name {
  font-size: 0.9rem;
  color: var(--accent);
}

.login-box {
  max-width: 360px;
  margin: 0 auto 2rem;
}

.login-box h2 {
  margin-bottom: 1rem;
}

.login-error {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: var(--error);
}

/* === CARDS === */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 30px rgba(0, 245, 255, 0.06);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-display);
  letter-spacing: 0.05em;
}

.collapsible .card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin: 0 0 1rem;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
  text-align: left;
}

.collapsible .card-header h2 {
  margin: 0;
}

.collapsible .card-toggle {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-left: 0.5rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300f5ff' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center/contain no-repeat;
  transition: transform 0.2s;
  filter: drop-shadow(0 0 4px var(--accent-glow));
}

.collapsible.is-collapsed .card-toggle {
  transform: rotate(-90deg);
}

.collapsible .card-body {
  overflow: hidden;
  transition: opacity 0.2s;
}

.collapsible.is-collapsed .card-body {
  display: none;
}

.preview-sidebar.collapsible .card-header {
  margin-bottom: 0.75rem;
}

.preview-sidebar .preview-title {
  margin: 0;
}

.block-collapsible {
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-left: 2px solid var(--accent-magenta);
}

.block-collapsible .block-header {
  margin-bottom: 0.5rem;
}

.block-collapsible .block-header .block-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-magenta);
  font-family: var(--font-display);
  letter-spacing: 0.03em;
}

.block-collapsible .card-body {
  margin-top: 0;
}

/* === FORMS === */
label {
  display: block;
  margin-bottom: 1rem;
}

label:last-of-type {
  margin-bottom: 0;
}

label span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="url"],
input[type="file"],
textarea,
select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 15px var(--accent-glow);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-dim);
  opacity: 0.8;
}

.avatar-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.avatar-row input {
  flex: 1;
}

.avatar-preview {
  width: 40px;
  height: 40px;
  border-radius: 2px;
  background: var(--border);
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--border);
}

.avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 0.35rem;
}

.toolbar-btn {
  padding: 0.35rem 0.5rem;
  font-size: 0.85rem;
  min-width: 2rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, color 0.2s;
}

.toolbar-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

.hint {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

.counter {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
  padding: 0.65rem 1.25rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: 1px solid;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 0 25px var(--accent-glow), inset 0 0 20px rgba(0, 245, 255, 0.2);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent-magenta);
  color: var(--accent-magenta);
  box-shadow: 0 0 12px var(--accent-magenta-glow);
}

.btn-small {
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
  margin-top: 0.25rem;
}

.embed-fields {
  margin-bottom: 1rem;
}

.embed-fields .label-span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}

.field-row .field-name,
.field-row .field-value {
  padding: 0.5rem 0.6rem;
  font-size: 0.9rem;
}

.field-inline-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  white-space: nowrap;
  cursor: pointer;
}

.component-buttons {
  margin-bottom: 1rem;
}

.component-buttons .label-span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.component-buttons .hint code {
  background: var(--bg);
  padding: 0.1em 0.3em;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.85em;
  color: var(--accent);
}

.button-list {
  margin-bottom: 0.5rem;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 120px 1fr auto;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.5rem;
}

.btn-id-wrap {
  position: relative;
  min-width: 0;
}

.btn-id-wrap .btn-url {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
}

.button-row .btn-label {
  min-width: 0;
}

.button-row .btn-style {
  padding: 0.5rem 0.6rem;
  font-size: 0.9rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}

.button-row .btn-style:focus {
  border-color: var(--accent);
}

.button-row .btn-remove {
  width: 2rem;
  height: 2rem;
  padding: 0;
  font-size: 1.2rem;
  line-height: 1;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
}

.button-row .btn-remove:hover {
  border-color: var(--error);
  color: var(--error);
  box-shadow: 0 0 10px var(--error-glow);
}

/* === STATUS === */
.status {
  min-height: 2rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  border: 1px solid;
}

.status.success {
  background: rgba(0, 255, 136, 0.08);
  color: var(--success);
  border-color: var(--success);
  box-shadow: 0 0 15px var(--success-glow);
}

.status.error {
  background: rgba(255, 51, 102, 0.08);
  color: var(--error);
  border-color: var(--error);
  box-shadow: 0 0 15px var(--error-glow);
}

.status:empty {
  display: none;
}