/* ==========================================================================
   MONOCHROMATIC TEXTURED STUDIO THEME (Anti-Glare Palette)
   ========================================================================== */
:root {
  --bg-base: #111215;
  --bg-surface: #18191d;
  --bg-surface-hover: #21232a;
  --bg-element: #282a33;
  --border-color: #2e313d;
  --border-focus: #5a5f73;
  
  --text-main: #e3e5eb;
  --text-muted: #8c92a4;
  --text-dim: #5c6275;

  --status-green-bg: #1e2922;
  --status-green-text: #8be0a4;
  --status-yellow-bg: #2d281a;
  --status-yellow-text: #e2c074;
  --status-blue-bg: #1c2636;
  --status-blue-text: #8cb4f5;
  --status-red-bg: #2d1c1e;
  --status-red-text: #f08c92;

  --diff-add-bg: rgba(255, 255, 255, 0.06);
  --diff-del-bg: rgba(0, 0, 0, 0.35);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.noise-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
}

.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-logo {
  width: 32px;
  height: 32px;
  background: var(--bg-element);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
}

.brand-logo-img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  object-fit: contain;
}

.brand-title { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.brand-subtitle { font-size: 12px; color: var(--text-muted); }

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.config-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1fr auto;
  gap: 16px;
  align-items: flex-end;
}

.input-group { display: flex; flex-direction: column; gap: 6px; }
.input-group label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.input-field {
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s ease;
}

.input-field:focus { border-color: var(--border-focus); }

.btn {
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-sm { padding: 5px 10px; font-size: 11px; }

.btn:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-focus);
}

.btn-primary {
  background-color: var(--text-main);
  color: var(--bg-base);
  border-color: var(--text-main);
}

.btn-primary:hover { background-color: #ffffff; color: #000000; }

.tabs-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.tab-btn:hover { color: var(--text-main); background-color: var(--bg-surface-hover); }
.tab-btn.active { color: var(--text-main); background-color: var(--bg-surface); border-color: var(--border-color); }

.tab-content { display: none; }
.tab-content.active { display: flex; flex-direction: column; gap: 20px; }

.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 36px 20px;
  text-align: center;
  background-color: var(--bg-surface);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--text-muted);
  background-color: var(--bg-surface-hover);
}

.dropzone-icon { font-size: 32px; color: var(--text-muted); }

/* Bulk Path Transformer Bar */
.transformer-bar {
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.transformer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.table-container {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-surface);
}

table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; }

th {
  background-color: var(--bg-element);
  color: var(--text-muted);
  padding: 12px 16px;
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

td { padding: 10px 16px; border-bottom: 1px solid var(--border-color); font-family: var(--font-mono); }
tr:last-child td { border-bottom: none; }
tr:hover td { background-color: var(--bg-surface-hover); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-sans);
}

.badge-exact { background: var(--status-green-bg); color: var(--status-green-text); }
.badge-suggested { background: var(--status-yellow-bg); color: var(--status-yellow-text); }
.badge-new { background: var(--status-blue-bg); color: var(--status-blue-text); }
.badge-conflict { background: var(--status-red-bg); color: var(--status-red-text); }

.code-textarea {
  width: 100%;
  height: 260px;
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  outline: none;
}

.code-textarea:focus { border-color: var(--border-focus); }

.alert-banner {
  background-color: var(--status-yellow-bg);
  border: 1px solid var(--status-yellow-text);
  color: var(--status-yellow-text);
  padding: 12px 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.diff-container {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-base);
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-x: auto;
}

.diff-header {
  background-color: var(--bg-element);
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.diff-line { display: flex; padding: 2px 0; white-space: pre-wrap; word-break: break-all; }
.diff-num {
  width: 50px;
  padding: 0 8px;
  color: var(--text-dim);
  text-align: right;
  user-select: none;
  border-right: 1px solid var(--border-color);
}
.diff-text { padding: 0 12px; flex: 1; }
.diff-add {
  background-color: var(--diff-add-bg);
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0, rgba(255,255,255,0.03) 10px, transparent 10px, transparent 20px);
  color: var(--text-main);
}
.diff-del { background-color: var(--diff-del-bg); color: var(--text-dim); text-decoration: line-through; }

.terminal-panel {
  background-color: var(--bg-base);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  max-height: 160px;
  overflow-y: auto;
  color: var(--text-muted);
}

.terminal-entry { margin-bottom: 4px; }
.terminal-entry.success { color: var(--status-green-text); }
.terminal-entry.error { color: var(--status-red-text); }
.terminal-entry.info { color: var(--status-blue-text); }

.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.modal-overlay.active { display: flex; }

.modal-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  width: 90%;
  max-width: 960px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 12px; }