:root {
  --bg: #1e1e1e;
  --surface: #252526;
  --surface-raised: #2d2d2d;
  --surface-alt: #292929;
  --header-bg: #333333;
  --border: #3c3c3c;
  --text: #d4d4d4;
  --text-muted: #9a9a9a;
  --accent: #0018f9;
  --accent-text: #6b87ff;
  --accent-dim: rgba(0, 24, 249, 0.18);
  --accent-secondary: #e8a33d;
  --accent-secondary-dim: rgba(232, 163, 61, 0.18);
  --danger: #ff5c5c;
  --success: #3ddc97;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}

.brand h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: inherit;
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.brand-link:hover {
  opacity: 0.85;
}

.logo {
  font-size: 22px;
  line-height: 1;
}

.accent {
  color: var(--accent-text);
}

.secondary {
  color: var(--accent-secondary);
}

.today-date {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 12px;
}

.header-right {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
}

.nav-link {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 12px;
  white-space: nowrap;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
  color: var(--accent-text);
  border-color: var(--accent-text);
}

.nav-link.active {
  color: var(--accent-text);
  border-color: var(--accent-text);
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab {
  flex: 1;
  display: block;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  padding: 16px 8px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.tab.active {
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

.today-view {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 20px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 32px 24px;
  align-items: center;
  text-align: center;
}

.ring-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.ring {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: conic-gradient(var(--accent) calc(var(--pct, 0%)), var(--border) 0);
  position: relative;
}

.ring.ring-protein {
  background: conic-gradient(var(--accent-secondary) calc(var(--pct, 0%)), var(--border) 0);
}

.ring::before {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--surface);
}

.ring-value {
  position: relative;
  font-size: 16px;
  font-weight: 700;
}

.ring-label {
  margin: 4px 0 0;
  color: var(--accent-text);
  font-weight: 600;
  font-size: 13px;
}

.ring-label.secondary {
  color: var(--accent-secondary);
}

.ring-caption {
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
}

.center-stat .center-value {
  margin: 0;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
}

.center-stat .center-caption {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 12px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
  font-size: 13px;
}

.data-table td,
.data-table th {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

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

.data-table tbody tr:nth-child(even) {
  background: var(--surface-alt);
}

.data-table td:first-child {
  color: var(--text-muted);
}

.data-table td:last-child {
  color: var(--text);
  font-weight: 600;
  text-align: right;
}

.data-table th {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 11px;
  font-weight: 600;
  background: var(--surface-raised);
}

.data-table th:last-child {
  text-align: right;
}

.row-toggle {
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  padding: 0;
  text-align: left;
  cursor: pointer;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 6px;
}

.row-toggle:hover {
  color: var(--accent-text);
}

.row-toggle:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

.row-toggle[aria-expanded="true"]::after {
  content: "\25be";
  font-size: 10px;
  color: var(--text-muted);
}

.row-toggle[aria-expanded="false"]::after {
  content: "\25b8";
  font-size: 10px;
  color: var(--text-muted);
}

.entry-subrow td {
  background: var(--surface-alt);
  padding: 12px 16px;
  text-align: left;
  font-weight: 400;
  color: var(--text);
}

.entry-subrow-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

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

.entry-subrow-item .entry-label {
  color: var(--text-muted);
  flex: 1 1 auto;
}

.entry-subrow-item .entry-macros {
  color: var(--text);
  font-weight: 600;
}

.log-entry {
  padding: 24px;
}

.log-entry h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.form-row label,
.form-row-single {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

input {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
}

input:focus {
  outline: 2px solid var(--accent-text);
  outline-offset: 1px;
  border-color: var(--accent-text);
}

input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  width: 100%;
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 14px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-secondary {
  background: var(--surface-raised);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

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

.io-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.file-label {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
}

.file-label input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
}

.data-io h2,
.goal-editor h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.data-io,
.goal-editor {
  padding: 24px;
}

.btn-delete {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.btn-delete:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.placeholder-note {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}

.entry-list-placeholder {
  padding: 24px;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  padding: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.chart-wrap {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 16px 4px;
  margin-bottom: 20px;
  min-height: 0;
}

.chart-canvas {
  display: block;
  width: 100%;
  height: 140px;
}

.chart-hotspots {
  position: absolute;
  top: 12px;
  left: 10px;
  right: 10px;
  bottom: 20px;
  display: flex;
}

.chart-hotspot {
  flex: 1 1 0;
  min-width: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.chart-hotspot:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: -2px;
}

.chart-tooltip {
  position: absolute;
  top: 4px;
  transform: translateX(-50%);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 11px;
  color: var(--text);
  white-space: nowrap;
  pointer-events: none;
  z-index: 1;
}

.chart-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.chart-nav-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 10;
}

.modal-backdrop[hidden] {
  display: none;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  max-width: 420px;
  width: 100%;
}

.modal-title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.modal-message {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.modal-actions .btn-primary,
.modal-actions .btn-secondary {
  width: auto;
}

.roadmap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.site-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 32px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}

.site-footer a {
  color: var(--accent-text);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.roadmap h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.roadmap-table tbody tr.deferred td {
  color: var(--text-muted);
  opacity: 0.7;
}

.roadmap-status {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

.status-done {
  color: var(--success);
  background: rgba(61, 220, 151, 0.15);
}

.status-planned {
  color: var(--text-muted);
  background: var(--surface-raised);
}

.status-deferred {
  color: var(--text-muted);
  background: var(--surface-raised);
  opacity: 0.7;
}

@media (max-width: 1022px) {
  .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .center-stat {
    grid-column: span 2;
  }
}

@media (max-width: 699px) {
  .topbar {
    flex-direction: column;
    gap: 12px;
  }

  .header-right {
    width: 100%;
    justify-content: space-between;
  }

  .stat-row {
    grid-template-columns: minmax(0, 1fr);
    padding: 24px 16px;
  }

  .center-stat {
    grid-column: span 1;
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .tab {
    font-size: 12px;
    padding: 12px 4px;
  }

  .data-table td,
  .data-table th {
    padding: 10px 12px;
  }

  .chart-nav {
    gap: 8px;
  }

  .chart-nav .btn-secondary {
    padding: 8px 10px;
    font-size: 12px;
  }

  .chart-nav-label {
    font-size: 12px;
  }

  .chart-canvas {
    height: 110px;
  }

  .modal {
    padding: 20px;
  }
}