:root {
  --bg: #0a0a0a;
  --panel: #131313;
  --border: #262626;
  --text: #e8e8e6;
  --dim: #8a8a86;
  --dimmer: #55554f;
  --accent: #f2f2ee;
  --mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
}

.topbar {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.brand {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.tagline {
  color: var(--dim);
  font-size: 13px;
  flex: 1;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--dim);
}

.topbar-user button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  border-radius: 6px;
  padding: 5px 10px;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

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

.auth-wrap {
  display: flex;
  justify-content: center;
  padding-top: 60px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-hint {
  color: var(--dim);
  font-size: 12px;
  line-height: 1.5;
  margin: 0 0 4px;
}

.auth-card input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
}

.auth-card input:focus {
  border-color: var(--dim);
}

.auth-card button {
  background: var(--accent);
  color: #0a0a0a;
  border: none;
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.auth-card button:hover {
  opacity: 0.85;
}

.auth-error {
  color: #e28787;
  font-size: 12px;
  margin: 0;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 80px;
}

.composer {
  display: flex;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 20px;
}

.composer textarea {
  flex: 1;
  resize: none;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.5;
}

.composer textarea::placeholder { color: var(--dimmer); }

.composer button {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: #0a0a0a;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
}

.composer button:hover { opacity: 0.85; }

.controls {
  margin-bottom: 20px;
}

#search {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
  margin-bottom: 10px;
}

#search::placeholder { color: var(--dimmer); }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-chip {
  border: 1px solid var(--border);
  color: var(--dim);
  background: var(--panel);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  font-family: var(--mono);
}

.tag-chip.active {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
}

.day-group { margin-bottom: 24px; }

.day-label {
  color: var(--dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.thought {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
  position: relative;
}

.thought-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.thought-time {
  color: var(--dimmer);
  font-size: 11px;
}

.thought-tags {
  display: flex;
  gap: 6px;
}

.thought-tag {
  color: var(--dim);
  font-size: 11px;
}

.thought-text {
  font-size: 14px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.thought-delete {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: var(--dimmer);
  cursor: pointer;
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.15s;
}

.thought:hover .thought-delete { opacity: 1; }
.thought-delete:hover { color: var(--text); }

.empty {
  color: var(--dimmer);
  text-align: center;
  padding: 60px 0;
  font-size: 13px;
}

.thought-tag-inline {
  color: var(--dim);
}

.hidden { display: none; }