/* Base reset and theme */
:root {
  --color-accent: #feff42;
  --color-bg: #0a0a0a;
  --color-bg-card: #141414;
  --color-bg-input: #111111;
  --color-bg-element: #1a1a1a;
  --color-bg-subtle: #252525;
  --color-bg-accent: #1a1a0a;
  --color-text: #e0e0e0;
  --color-text-secondary: #cccccc;
  --color-text-muted: #888888;
  --color-text-subtle: #666666;
  --color-text-dim: #555555;
  --color-white: #ffffff;
  --color-border: #2a2a2a;
  --color-border-strong: #333333;
  --color-border-hover: #444444;
  --color-bg-dark: #0f0f0f;
  --color-border-accent: #3a3a1a;
  --color-bg-disabled-border: #222222;
  --color-error: #ff6666;
  --color-success: #4ade80;
  --color-overlay: rgba(0, 0, 0, 0.8);
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  margin: 0;
  padding: 24px;
  min-height: 100vh;
}

.container { max-width: 800px; margin: 0 auto; }

/* Typography */
h1 { font-size: 22px; font-weight: 700; color: var(--color-accent); margin-bottom: 4px; letter-spacing: 0.5px; }
h2 { font-size: 16px; color: var(--color-white); margin: 0; }
h3 { font-size: 14px; color: var(--color-text-muted); margin-bottom: 10px; }

label { font-size: 11px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; display: block; }

/* Form elements */
select, input[type="number"] {
  width: 100%;
  padding: 8px;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 14px;
  margin-top: 4px;
}

select:focus, input[type="number"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Buttons */
.btn {
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 13px;
  border: 1px solid;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--color-bg-accent);
  color: var(--color-accent);
  border-color: var(--color-border-accent);
}

.btn-primary:hover { background: var(--color-border-accent); border-color: var(--color-accent); }
.btn-primary:disabled { background: var(--color-bg-input); color: var(--color-border-hover); border-color: var(--color-bg-disabled-border); cursor: not-allowed; }

.btn-secondary {
  background: var(--color-bg-element);
  color: var(--color-text-muted);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover { color: var(--color-text-secondary); border-color: var(--color-border-hover); }
.btn-secondary:disabled { background: var(--color-bg-input); color: var(--color-border-hover); border-color: var(--color-bg-disabled-border); cursor: not-allowed; }

.btn-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-bg-element);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-muted);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.btn-icon:hover { border-color: var(--color-accent); color: var(--color-accent); }

.home-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-bg-element);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-muted);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.15s;
}

.home-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Cards */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 { margin-top: 0; margin-bottom: 16px; }

.card-sm {
  background: var(--color-bg-element);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px;
}

/* Stat boxes */
.stat-box {
  background: var(--color-bg-element);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  flex: 1;
  min-width: 140px;
}

.stat-label { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.stat-value { font-size: 24px; font-weight: 700; color: var(--color-accent); }
.stat-sub { font-size: 12px; color: var(--color-text-subtle); margin-top: 4px; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 12px; color: var(--color-text-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; border-bottom: 1px solid var(--color-border); }
td { padding: 8px 12px; color: var(--color-text-secondary); border-bottom: 1px solid var(--color-bg-element); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

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

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
}

.modal h2 { margin-top: 0; margin-bottom: 16px; }
.modal p { font-size: 13px; color: var(--color-text-secondary); line-height: 1.5; margin: 0 0 6px 0; }
.modal p strong { display: block; margin-top: 12px; }

.modal code {
  background: var(--color-bg-element);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  color: var(--color-accent);
}

.modal-close {
  float: right;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-close:hover { color: var(--color-white); }

/* List items (selectable) */
.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  background: var(--color-bg-element);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.list-item:hover { border-color: var(--color-border-hover); }
.list-item.selected { border-color: var(--color-accent); background: var(--color-bg-accent); }
.list-item.disabled { opacity: 0.4; cursor: not-allowed; }

/* Toggle buttons */
.toggle-group {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
}

.toggle-btn {
  flex: 1;
  padding: 10px 16px;
  background: var(--color-bg-element);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}

.toggle-btn:first-child { border-radius: 6px 0 0 6px; }
.toggle-btn:last-child { border-radius: 0 6px 6px 0; }
.toggle-btn + .toggle-btn { margin-left: -1px; }

.toggle-btn.active {
  background: var(--color-bg-accent);
  border-color: var(--color-accent);
  color: var(--color-accent);
  position: relative;
  z-index: 1;
}

.toggle-btn:not(.active):hover { border-color: var(--color-border-hover); color: var(--color-text-secondary); }

/* Title row */
.title-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.title-row h1 { margin: 0; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  transform: translateY(20px);
  background: var(--color-bg-element);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 300;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hints */
.hint {
  color: var(--color-text-muted);
  font-size: 14px;
  margin-bottom: 16px;
}

/* Utility */
.text-error { color: var(--color-error); }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: 6px; }
.gap-md { gap: 10px; }
.gap-lg { gap: 16px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 20px; }

/* Todo widget */
.todo-toggle {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-bg-element);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-muted);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 150;
  transition: all 0.15s;
  padding: 0;
}

.todo-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); }

.todo-panel {
  position: fixed;
  width: 360px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  z-index: 150;
  display: none;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.todo-panel.open { display: flex; }

.todo-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  cursor: grab;
  user-select: none;
  background: var(--color-bg-dark);
  flex-shrink: 0;
}

.todo-header:active { cursor: grabbing; }

.todo-drag-handle { color: var(--color-text-dim); font-size: 14px; line-height: 1; }

.todo-title {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 600;
  letter-spacing: 0.5px;
  flex: 1;
}

.todo-collapse-btn,
.todo-close-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}

.todo-collapse-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.todo-close-btn:hover { border-color: var(--color-error); color: var(--color-error); }

.todo-body {
  display: flex;
  flex-direction: column;
  max-height: 400px;
}

.todo-panel.minimized .todo-body { display: none; }
.todo-panel.minimized .todo-header { border-bottom: none; }

.todo-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.todo-input-row input {
  flex: 1;
  padding: 7px 10px;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 14px;
  font-family: inherit;
  margin: 0;
  width: 0;
}

.todo-input-row input:focus { outline: none; border-color: var(--color-accent); }

.todo-add {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  background: var(--color-bg-accent);
  border: 1px solid var(--color-border-accent);
  color: var(--color-accent);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  line-height: 1;
}

.todo-add:hover { border-color: var(--color-accent); }

.todo-list { overflow-y: auto; flex: 1; }

.todo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-element);
}

.todo-item:last-child { border-bottom: none; }

.todo-check {
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}

.todo-item-text {
  flex: 1;
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.4;
  word-break: break-word;
  cursor: pointer;
}

.todo-item.done .todo-item-text { color: var(--color-text-muted); text-decoration: line-through; }

.todo-delete {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: none;
  border: 1px solid transparent;
  color: var(--color-text-dim);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s;
  line-height: 1;
}

.todo-item:hover .todo-delete { opacity: 1; }
.todo-delete:hover { border-color: var(--color-error); color: var(--color-error); }