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

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --border: #2a2a2a;
  --text: #e0e0e0;
  --text-dim: #777;
  --accent: #5b8def;
  --accent-hover: #7aa5f5;
  --danger: #e55;
  --radius: 8px;
  --max-width: 640px;
}

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

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

nav .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

nav .nav-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}

nav a:hover, nav a.active {
  color: var(--text);
}

nav .nav-icon {
  font-size: 16px;
  opacity: 0.3;
  transition: opacity 0.15s;
}

nav .nav-icon:hover, nav .nav-icon.active {
  opacity: 0.8;
}

/* Main content */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 16px;
}

/* Buttons */
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s;
}

button:hover {
  border-color: var(--text-dim);
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button.primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

button.danger {
  color: var(--danger);
  border-color: transparent;
  background: none;
  padding: 4px 8px;
}

button.danger:hover {
  background: rgba(238, 85, 85, 0.1);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Inputs */
textarea, input[type="text"], input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
  transition: border-color 0.15s;
}

textarea:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  min-height: 120px;
}

/* Drop zone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 12px;
}

.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(91, 141, 239, 0.05);
  color: var(--accent);
}

.dropzone input[type="file"] {
  display: none;
}

/* File preview */
.file-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 12px;
}

.file-preview img, .file-preview video {
  max-width: 80px;
  max-height: 80px;
  border-radius: 4px;
  object-fit: cover;
}

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

.file-preview .file-name {
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-preview .file-size {
  font-size: 12px;
  color: var(--text-dim);
}

.file-preview .remove-file {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  font-size: 18px;
}

/* Record section */
.record-section {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

.record-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}

.record-btn:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

.record-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--danger);
  opacity: 0.5;
  transition: opacity 0.15s;
}

.record-btn:hover .record-dot {
  opacity: 0.8;
}

.record-btn.recording {
  border-color: var(--danger);
  color: var(--danger);
}

.record-btn.recording .record-dot {
  opacity: 1;
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.record-timer {
  font-size: 14px;
  color: var(--danger);
  font-variant-numeric: tabular-nums;
}

/* Audio preview in file-preview */
.file-preview audio {
  width: 100%;
  height: 32px;
  margin-top: 4px;
}

/* Tags input */
.tags-input {
  margin-top: 12px;
}

.tags-input label {
  font-size: 12px;
  color: var(--text-dim);
  display: block;
  margin-bottom: 4px;
}

/* Capture form */
.capture-form {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.capture-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

/* Feed */
.feed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}

.tag-pill:hover, .tag-pill.active {
  border-color: var(--accent);
  color: var(--accent);
}

.tag-pill .count {
  opacity: 0.6;
}

/* Item cards */
.item-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  transition: border-color 0.15s;
}

.item-card:hover {
  border-color: var(--text-dim);
}

.item-card .item-body {
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.6;
}

.item-card .item-media {
  margin-bottom: 8px;
}

.item-card .item-media img {
  max-width: 100%;
  border-radius: 4px;
}

.item-card .item-media video,
.item-card .item-media audio {
  width: 100%;
  border-radius: 4px;
}

.item-card .item-file-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg);
  border-radius: var(--radius);
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 8px;
}

.item-card .item-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-dim);
}

.item-card .item-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.item-card .item-tags span {
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  cursor: default;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.item-card .item-tags .remove-tag-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0 2px;
  font-size: 13px;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
}

.item-card .item-tags span:hover .remove-tag-btn {
  opacity: 1;
}

.item-card .item-tags .remove-tag-btn:hover {
  color: var(--danger);
}

/* Inline tag editor */
.item-tag-editor {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-top: 8px;
}

.item-tag-editor input {
  flex: 1;
  padding: 4px 8px;
  font-size: 12px;
  min-height: auto;
}

.item-tag-editor button {
  padding: 4px 10px;
  font-size: 12px;
}

.item-card .add-tags-btn {
  background: none;
  border: 1px dashed var(--border);
  color: var(--text-dim);
  padding: 2px 8px;
  font-size: 12px;
  border-radius: 999px;
  cursor: pointer;
}

.item-card .add-tags-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Login overlay */
.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 360px;
  margin: 16px;
}

.login-box h2 {
  margin-bottom: 16px;
  font-size: 20px;
}

.login-box .login-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 8px;
  display: none;
}

.login-box button {
  width: 100%;
  margin-top: 12px;
}

/* Loading */
.loading {
  text-align: center;
  padding: 24px;
  color: var(--text-dim);
}

.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-dim);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: 14px;
  z-index: 2000;
  transition: transform 0.3s ease;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* Responsive */
@media (max-width: 480px) {
  main {
    padding: 16px 12px;
  }
  .dropzone {
    padding: 24px 16px;
  }
}