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

/* ── THEME: DARK (default) ── */
:root, [data-theme="dark"] {
  --bg:        #0d0f18;
  --bg2:       #13162a;
  --bg3:       #1c2040;
  --border:    #2a2f52;
  --text:      #c8cee8;
  --text-dim:  #5a6080;
  --text-muted:#3a4060;
  --accent:    #5b8ef0;
  --accent2:   #7c5bf0;
  --event:     #1a2b4a;
  --request:   #1a3a2a;
  --comment:   #1e1e28;
  --highlight: rgba(250,200,30,0.18);
  --highlight-border: #f0b020;
  --radius:    6px;
  --font-mono: 'JetBrains Mono', 'Fira Mono', 'Cascadia Code', ui-monospace, 'Noto Sans Mono CJK SC', monospace;
  --font-ui:   system-ui, -apple-system, 'Segoe UI', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --drop-overlay: rgba(13,15,24,.96);
  --obj-tag-bg: rgba(255,255,255,.07);
  --hover-overlay: rgba(255,255,255,.04);
  --search-match-shadow: rgba(255,255,255,0.3);
  --search-active-bg: rgba(255,255,255,0.15);
  --search-active-outline: #fff;
  --event-border: #2a6fcf;
  --request-border: #2aaf6f;
  --arrow-color: #2aaf6f;
  --fn-color: #9de0e8;
  --arg-new: #c0a0f0;
  --arg-int: #f0c060;
  --arg-str: #a0d880;
  --discarded-color: #e07050;
  --dot-event: #2a6fcf;
  --dot-request: #2aaf6f;
  --drop-title: #fff;
  --btn-primary-text: #fff;
  --highlight-tag-bg: rgba(240,176,32,.15);
  --obj-sat: 70%;
  --obj-lit: 62%;
}

/* ── THEME: LIGHT ── */
[data-theme="light"] {
  --bg:        #f5f6fa;
  --bg2:       #ffffff;
  --bg3:       #e8eaf0;
  --border:    #d0d4e0;
  --text:      #1e2030;
  --text-dim:  #6b7090;
  --text-muted:#9098b0;
  --accent:    #3b6fd8;
  --accent2:   #6b4fd8;
  --event:     #e8f0ff;
  --request:   #e4f7ed;
  --comment:   #f0f0f4;
  --highlight: rgba(250,180,20,0.15);
  --highlight-border: #d09010;
  --drop-overlay: rgba(245,246,250,.97);
  --obj-tag-bg: rgba(0,0,0,.06);
  --hover-overlay: rgba(0,0,0,.03);
  --search-match-shadow: rgba(59,111,216,0.4);
  --search-active-bg: rgba(59,111,216,0.12);
  --search-active-outline: var(--accent);
  --event-border: #3b7fe8;
  --request-border: #2aaf6f;
  --arrow-color: #1a8a50;
  --fn-color: #0e6a72;
  --arg-new: #7040c0;
  --arg-int: #b07800;
  --arg-str: #2a8030;
  --discarded-color: #c04020;
  --dot-event: #3b7fe8;
  --dot-request: #2aaf6f;
  --drop-title: #1e2030;
  --btn-primary-text: #fff;
  --highlight-tag-bg: rgba(240,176,32,.12);
  --obj-sat: 75%;
  --obj-lit: 35%;
}

/* ── BASE ── */
html, body { height: 100%; overflow: hidden; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
}

/* ── HEADER ── */
header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
header h1 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.header-meta {
  font-size: 12px;
  color: var(--text-dim);
}
.header-spacer { flex: 1; }
.btn {
  padding: 5px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--border); border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: transparent;
  color: var(--btn-primary-text);
  font-weight: 600;
}
.btn.primary:hover { opacity: .85; }

/* ── FILTERS BAR ── */
.filters {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 7px 18px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.filters.visible { display: flex; }
.filters input[type=search] {
  flex: 1;
  max-width: 320px;
  padding: 5px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
  font-family: var(--font-mono);
  outline: none;
  transition: border-color .15s;
}
.filters input[type=search]:focus { border-color: var(--accent); }
.search-match { box-shadow: inset 3px 0 0 var(--search-match-shadow) !important; }
.search-active {
  background: var(--search-active-bg) !important;
  outline: 2px solid var(--search-active-outline) !important;
  outline-offset: -2px;
  position: relative;
  z-index: 1;
}
.search-nav.hidden { display: none !important; }
.search-nav {
  height: 26px; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
}
.toggle-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}
.toggle-label input { accent-color: var(--accent); cursor: pointer; }

/* ── MAIN LAYOUT ── */
.main {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* ── DROP OVERLAY ── */
#drop-zone {
  position: absolute;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: var(--drop-overlay);
  backdrop-filter: blur(4px);
}
#drop-zone.hidden { display: none; }
#drop-zone.dragging { background: rgba(91,142,240,.08); }
.drop-icon {
  font-size: 56px;
  filter: drop-shadow(0 0 20px var(--accent));
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
.drop-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--drop-title);
}
.drop-sub {
  font-size: 13px;
  color: var(--text-dim);
}
.drop-actions { display: flex; gap: 10px; margin-top: 10px; }
#file-input { display: none; }
.paste-area {
  width: 480px;
  height: 140px;
  resize: none;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 10px;
  outline: none;
}
.paste-area:focus { border-color: var(--accent); }

/* ── LEFT SIDEBAR ── */
.sidebar {
  width: 340px;
  min-width: 180px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg2);
}
.sidebar-section { overflow-y: auto; padding: 10px 0; }
.sidebar-section + .sidebar-section { border-top: 1px solid var(--border); }
.sidebar-title {
  padding: 4px 12px 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-dim);
}
.obj-chip {
  display: block;
  padding: 3px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  cursor: pointer;
  border-radius: 0;
  border-left: 3px solid transparent;
  transition: background .1s, border-color .1s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.obj-chip:hover { background: var(--bg3); }
.obj-chip.highlighted {
  background: var(--highlight);
  border-left-color: var(--highlight-border);
}
.global-item {
  padding: 2px 12px;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  white-space: nowrap;
}
.global-item span { color: var(--text); }

/* ── RESIZE HANDLE ── */
.resize-handle {
  width: 4px;
  cursor: col-resize;
  background: var(--border);
  flex-shrink: 0;
  transition: background .15s;
}
.resize-handle:hover, .resize-handle.dragging { background: var(--accent); }

/* ── LOG PANEL ── */
.log-panel {
  flex: 1;
  overflow-y: auto;
  overflow-x: auto;
  padding: 6px 0;
}
.log-panel::-webkit-scrollbar { width: 6px; height: 6px; }
.log-panel::-webkit-scrollbar-track { background: transparent; }
.log-panel::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.log-line {
  display: flex;
  align-items: baseline;
  min-height: 24px;
  padding: 2px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  border-left: 3px solid transparent;
  transition: background .08s;
  white-space: nowrap;
}
.log-line:hover { background: var(--hover-overlay); }
.log-line.event   { background: var(--event);   border-left-color: var(--event-border); }
.log-line.request { background: var(--request);  border-left-color: var(--request-border); }
.log-line.comment { background: var(--comment);  color: var(--text-muted); }
.log-line.highlighted-line { background: var(--highlight) !important; border-left-color: var(--highlight-border) !important; }

.log-line .timestamp { color: var(--text-dim); margin-right: 6px; user-select: none; }
.log-line .arrow   { color: var(--arrow-color); margin-right: 6px; }
.log-line .fn-name { color: var(--fn-color); }
.log-line .paren   { color: var(--text-dim); }
.log-line .arg-sep { color: var(--text-dim); margin: 0 2px; }

.obj-tag {
  display: inline-block;
  padding: 0 5px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 500;
  background: var(--obj-tag-bg);
  cursor: pointer;
  border: 1px solid transparent;
  transition: filter .1s, border-color .1s;
}
.obj-tag:hover { filter: brightness(1.3); border-color: currentColor; }
.obj-tag.highlighted-tag {
  outline: 2px solid var(--highlight-border);
  background: var(--highlight-tag-bg);
}

/* ── ARGUMENT TYPES ── */
.arg-new   { color: var(--arg-new); }
.arg-int   { color: var(--arg-int); }
.arg-str   { color: var(--arg-str); }
.arg-unk   { color: var(--text-dim); }
.arg-name  { color: var(--text-dim); font-size: 11px; opacity: 0.75; }
.discarded-tag { color: var(--discarded-color); font-style: italic; margin-right: 4px; opacity: 0.8; }

/* ── STATS ── */
.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  background: var(--bg3);
  color: var(--text-dim);
}
.stat-badge .dot { width: 6px; height: 6px; border-radius: 50%; }
.dot-event   { background: var(--dot-event); }
.dot-request { background: var(--dot-request); }
.dot-comment { background: var(--text-muted); }

/* ── EMPTY / LOADING ── */
.empty-msg {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
  font-size: 13px;
}