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

:root {
  --bg: #ffffff;
  --border: #e8e8e8;
  --text: #111111;
  --muted: #888888;
  --green: #2db87a;
  --blue: #3b82f6;
  --orange: #c8820a;
}

body.dark {
  --bg: #111111;
  --border: #2a2a2a;
  --text: #e0e0e0;
  --muted: #666666;
}

html { font-size: 15px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  padding: 2rem 2rem 4rem;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* ── Header ── */
header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

header h1 {
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.days-logged {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.rate-avg {
  font-size: 0.88rem;
  color: var(--muted);
  white-space: nowrap;
}

#theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  color: var(--muted);
  transition: color 0.15s;
  display: flex;
  align-items: center;
}

#theme-toggle:hover { color: var(--text); }

.icon-moon { display: none; }

body.dark .icon-sun  { display: none; }
body.dark .icon-moon { display: inline; }

/* ── Stats ── */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-bottom: 1.8rem;
  border-bottom: 1px solid var(--border);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.stat-label {
  font-size: 0.68rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 400;
}

.stat-value {
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1;
}

.stat-sub {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.1rem;
  font-weight: 400;
}

.green  { color: var(--green); }
.blue   { color: var(--blue); }
.orange { color: var(--orange); }

/* ── Tabs ── */
.tabs-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: -0.5rem;
}

.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 400;
  margin-bottom: -1px;
  padding: 0.55rem 0.9rem 0.55rem 0;
  margin-right: 1.2rem;
  transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--text); }

.tab.active {
  border-bottom-color: var(--green);
  color: var(--text);
  font-weight: 400;
}

/* ── Tab panels ── */
.tab-panel.hidden { display: none; }

/* ── Legend ── */
.legend {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  font-weight: 400;
}

.top-gap { margin-top: 1.8rem; }

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-item::before {
  content: '';
  display: inline-block;
  flex-shrink: 0;
}

.green-dot { color: var(--green); }
.green-dot::before {
  width: 0.55em; height: 0.55em;
  border-radius: 50%;
  background: var(--green);
}

.blue-dot { color: var(--blue); }
.blue-dot::before {
  width: 0.55em; height: 0.55em;
  border-radius: 50%;
  background: var(--blue);
}

.orange-dash { color: var(--orange); }
.orange-dash::before {
  width: 1.1em; height: 1.5px; border-radius: 0;
  background: repeating-linear-gradient(
    90deg,
    var(--orange) 0px, var(--orange) 4px,
    transparent 4px, transparent 7px
  );
}

.cyan-dot { color: #06b6d4; }
.cyan-dot::before {
  width: 0.55em; height: 0.55em;
  border-radius: 50%;
  background: #06b6d4;
}

.purple-dash { color: #a855f7; }
.purple-dash::before {
  width: 1.1em; height: 1.5px; border-radius: 0;
  background: repeating-linear-gradient(
    90deg,
    #a855f7 0px, #a855f7 4px,
    transparent 4px, transparent 7px
  );
}

/* ── Charts ── */
.chart-wrap {
  position: relative;
  height: 230px;
  width: 100%;
}

.chart-wrap-pie {
  height: 200px;
  max-width: 340px;
  margin: 0 auto;
}

.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ── Entries table ── */
.entries-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.entries-table th {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  padding: 0 0 0.6rem;
  text-align: left;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.entries-table th:nth-child(2),
.entries-table th:nth-child(3),
.entries-table th:nth-child(4) { padding-left: 1rem; }

.entries-table td {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.entries-table td:nth-child(2),
.entries-table td:nth-child(3),
.entries-table td:nth-child(4) { padding-left: 1rem; }

.entries-table tr:last-child td { border-bottom: none; }

.rev-cell    { color: var(--green);  font-weight: 400; }
.profit-cell { color: #06b6d4;      font-weight: 400; }
.hrs-cell    { color: var(--blue);  font-weight: 400; }
.rate-cell   { color: var(--orange); font-weight: 400; }
.pops-cell  { color: #f97316; }
.water-cell { color: #3b82f6; }
.soda-cell  { color: #a855f7; }
.ice-cell   { color: #06b6d4; }
.del-cell    { text-align: right; }

.del-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0 0.2rem;
  transition: color 0.15s;
}
.del-btn:hover { color: #e55; }

.empty-row td {
  color: var(--muted);
  font-size: 0.84rem;
  padding: 1.5rem 0;
  text-align: left;
}

/* ── Log form ── */
.log-form-section {
  border-top: 1px solid var(--border);
  padding-top: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.log-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.log-row-header {
  display: grid;
  gap: 1.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 400;
  margin-top: 0.6rem;
}

.log-row {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.log-row-3-col { grid-template-columns: 1fr 1fr 1fr; }
.log-row-4-col { grid-template-columns: 1fr 1fr 1fr 1fr; }

.log-row input {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.35rem 0.05rem;
  outline: none;
  width: 100%;
  transition: border-color 0.15s;
}

.log-row input::placeholder { color: #bbb; }
.log-row input:focus { border-bottom-color: var(--green); }
.log-row input[type="date"] { color-scheme: light; }

.log-actions {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.4rem;
}

#add-btn {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  padding: 0;
  white-space: nowrap;
  transition: color 0.15s;
  flex-shrink: 0;
}
#add-btn:hover { color: var(--green); }

.log-hint {
  font-size: 0.76rem;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.5;
}

/* ── Chart type toggles ── */
.chart-style-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.chart-type-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.74rem;
  padding: 0.25rem 0.65rem;
  transition: all 0.15s;
}

.chart-type-btn.active {
  border-color: var(--text);
  color: var(--text);
  background: var(--border);
}

.chart-toggle-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  transition: all 0.15s;
}

.chart-toggle-btn:hover,
.chart-toggle-btn.bar-active { border-color: var(--text); color: var(--text); }

/* ── Pie charts ── */
.legend-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
}

.pie-label {
  font-size: 0.76rem;
  color: var(--muted);
  text-align: center;
  margin: 0.4rem 0 0;
}

.pie-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.pie-toggle-group {
  display: flex;
  gap: 0.35rem;
}

.pie-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.74rem;
  padding: 0.25rem 0.65rem;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.pie-toggle.active {
  background: var(--border);
  border-color: var(--text);
  color: var(--text);
}

/* ── Transfer section ── */
.transfer-section {
  border-top: 1px solid var(--border);
  padding-top: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.transfer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.transfer-title {
  font-size: 0.88rem;
  color: var(--muted);
}

.transfer-btns {
  display: flex;
  gap: 0.5rem;
}

.transfer-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.78rem;
  padding: 0.3rem 0.75rem;
  transition: border-color 0.15s, color 0.15s;
}

.transfer-btn:hover,
.transfer-btn.active {
  border-color: var(--text);
  color: var(--text);
}

.transfer-panel {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.transfer-panel.hidden { display: none; }

.transfer-hint {
  font-size: 0.76rem;
  color: var(--muted);
}

.transfer-hint strong { font-weight: 500; color: var(--text); }

.transfer-box-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.transfer-box {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: 'SF Mono', 'Fira Mono', monospace;
  font-size: 0.72rem;
  height: 72px;
  outline: none;
  padding: 0.5rem 0.6rem;
  resize: none;
  transition: border-color 0.15s;
}

.transfer-box:focus { border-color: var(--green); }
.transfer-box::placeholder { color: #bbb; }

.copy-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.78rem;
  padding: 0.35rem 0.85rem;
  transition: all 0.15s;
  white-space: nowrap;
}

.copy-btn:hover { border-color: var(--green); color: var(--green); }
.copy-btn.success { border-color: var(--green); color: var(--green); }

/* ── Responsive ── */
@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, 1fr); }

  .log-form-header,
  .log-form { grid-template-columns: 1fr 1fr; }

  #add-btn { grid-column: 1 / -1; text-align: left; }
}