brum 1.2.1

Multi-Pane Web Environment (File Commander/Manager) - By Woofson
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:root {
  --bg-primary: #121318;
  --bg-secondary: #1a1b23;
  --bg-dark: #0d0e12;
  --bg-panel: #181920;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-glow: rgba(245, 158, 11, 0.18);
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --radius: 6px;
  --radius-sm: 4px;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrainsMono Nerd Font", Menlo, Monaco, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  background: var(--bg-panel);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.4;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.calc-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  padding: 10px;
  gap: 8px;
  overflow-y: auto;
  overflow-x: hidden;
}
  overflow-y: auto;
  overflow-x: hidden;
}

/* 1. Display Panel */
.calc-display-panel {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calc-expression-line {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  min-height: 16px;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calc-result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.calc-result-input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  text-align: right;
  width: 100%;
  outline: none;
}

.calc-copy-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.calc-copy-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

/* 2. Base & Converter Bar */
.calc-converters-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.calc-conv-item {
  display: flex;
  justify-content: space-between;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calc-conv-lbl {
  color: var(--accent);
  font-weight: 700;
  margin-right: 4px;
}

.calc-conv-val {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 3. Storage Units & Function Row */
.calc-units-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}

.calc-unit-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  height: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.calc-unit-btn:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent);
}

/* 4. Main Keypad Grid */
.calc-keypad-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 5px;
  flex: 1;
}

.calc-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  min-height: 34px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.calc-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}

.calc-btn:active {
  transform: scale(0.97);
}

.calc-btn-num {
  font-family: var(--font-mono);
  font-size: 15px;
}

.calc-btn-op {
  color: var(--accent);
  font-size: 16px;
  background: rgba(245, 158, 11, 0.06);
}

.calc-btn-op:hover {
  background: var(--accent-glow);
}

.calc-btn-fn {
  color: var(--text-secondary);
  font-size: 12px;
}

.calc-btn-equals {
  background: var(--accent);
  color: #000;
  font-weight: 700;
  font-size: 18px;
  border-color: var(--accent);
}

.calc-btn-equals:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

/* 5. History Bar & Drawer */
.calc-history-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px;
  font-size: 11px;
}

.btn-history-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
}

.btn-history-toggle:hover {
  color: var(--text-primary);
}

.calc-keyboard-hint {
  color: var(--text-muted);
  font-size: 10px;
}

.calc-history-drawer {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 8px;
  max-height: 120px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.calc-history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10.5px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 3px;
}

.calc-history-header button {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
}

.calc-history-header button:hover {
  color: #ef4444;
}

.calc-history-item {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 3px 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.calc-history-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.calc-history-expr {
  color: var(--text-muted);
  font-size: 9.5px;
}

.calc-history-val {
  color: var(--accent);
  font-weight: 600;
  text-align: right;
}

.calc-history-empty {
  color: var(--text-muted);
  font-size: 10px;
  text-align: center;
  padding: 8px;
}