/* ============================================================
   EIA Components — Phase 1
   - typography helpers
   - button (primary / secondary / ghost / danger / link / disabled)
   - input (text, email, code-6)
   - card (base, clickable, disabled)
   - badge (default, accent, success, warning, coming-soon)
   - app-header + logo
   - alert (error / success / info)
   - dev toolbar (variant + theme switcher)
   ============================================================ */

/* ---------- a11y utility ---------- */
.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;
}

/* ---------- typography helpers ---------- */
.t-display {
  font-size: var(--fs-h1);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  font-weight: 600;
  color: var(--c-fg);
  margin: 0;
}
.t-h2 {
  font-size: var(--fs-h2);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  font-weight: 600;
  color: var(--c-fg);
  margin: 0;
}
.t-h3 {
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
  font-weight: 600;
  color: var(--c-fg);
  margin: 0;
}
.t-body { font-size: var(--fs-body); line-height: var(--lh-body); color: var(--c-fg); }
.t-muted { color: var(--c-fg-muted); }
.t-subtle { color: var(--c-fg-subtle); }
.t-caption { font-size: var(--fs-caption); line-height: 1.5; color: var(--c-fg-muted); }
.t-mono { font-family: var(--font-mono); font-feature-settings: "tnum" 1; }
.t-eyebrow {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--c-fg-muted);
  font-weight: 600;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-4);
  border-radius: var(--r-md);
  font-size: var(--fs-body);
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  background: transparent;
  color: var(--c-fg);
  cursor: pointer;
  transition:
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    transform var(--dur-fast) var(--ease),
    box-shadow var(--dur) var(--ease);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(0.5px); }
.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
  pointer-events: none;
}

.btn--sm  { height: 32px; padding: 0 var(--space-3); font-size: var(--fs-caption); border-radius: var(--r-sm); }
.btn--lg  { height: 48px; padding: 0 var(--space-5); font-size: var(--fs-body-lg); border-radius: var(--r-md); }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--c-accent);
  color: var(--c-accent-fg);
  border-color: var(--c-accent);
  box-shadow: 0 1px 0 rgba(15, 12, 10, 0.04);
}
.btn--primary:hover { background: var(--c-accent-hover); border-color: var(--c-accent-hover); }

.btn--secondary {
  background: var(--c-surface);
  color: var(--c-fg);
  border-color: var(--c-border-strong);
}
.btn--secondary:hover { background: var(--c-surface-2); }

.btn--ghost {
  background: transparent;
  color: var(--c-fg-muted);
  border-color: transparent;
}
.btn--ghost:hover { background: var(--c-surface-2); color: var(--c-fg); }

.btn--danger {
  background: var(--c-error);
  color: oklch(99% 0 0);
  border-color: var(--c-error);
}
.btn--danger:hover { filter: brightness(0.96); }

.btn--link {
  height: auto;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--c-accent);
  text-decoration: none;
  font-weight: 500;
}
.btn--link:hover { color: var(--c-accent-hover); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- form fields ---------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field__label {
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--c-fg);
  letter-spacing: 0.005em;
}
.field__hint { font-size: var(--fs-caption); color: var(--c-fg-subtle); }
.field__error {
  font-size: var(--fs-caption);
  color: var(--c-error);
  margin: 0;
  min-height: 18px;
  line-height: 1.4;
}
.field__error:empty { visibility: hidden; }

.input {
  height: 44px;
  padding: 0 var(--space-3);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  color: var(--c-fg);
  font-size: var(--fs-body);
  font-family: var(--font-sans);
  transition:
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    background var(--dur) var(--ease);
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
}
.input::placeholder { color: var(--c-fg-subtle); }
.input:hover { border-color: var(--c-fg-subtle); }
.input:focus { border-color: var(--c-accent); box-shadow: var(--sh-focus); outline: none; }
.input[aria-invalid="true"] { border-color: var(--c-error); }
.input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px oklch(56% 0.18 25 / 0.25); }
.input:disabled { background: var(--c-surface-2); color: var(--c-fg-subtle); cursor: not-allowed; }

/* code-6 input — six fixed digit boxes, equal width */
.code-input {
  display: flex;
  gap: var(--space-2);
  max-width: 360px;
}
.code-input__digit {
  flex: 1 1 0;
  width: 0;
  min-width: 0;
  height: 56px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0;
  border-radius: var(--r-md);
  border: 1px solid var(--c-border-strong);
  background: var(--c-surface);
  color: var(--c-fg);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  appearance: none;
  -webkit-appearance: none;
}
.code-input__digit:hover { border-color: var(--c-fg-subtle); }
.code-input__digit:focus { outline: none; border-color: var(--c-accent); box-shadow: var(--sh-focus); }
.code-input[data-invalid="true"] .code-input__digit { border-color: var(--c-error); }

/* ---------- cards ---------- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--space-4);
  position: relative;
  transition:
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.card--padded { padding: var(--space-5); }
.card--elev { box-shadow: var(--sh-3); }

.card--clickable { cursor: pointer; text-decoration: none; color: inherit; display: block; }
.card--clickable:hover {
  border-color: var(--c-border-strong);
  background: var(--c-surface-2);
  transform: translateY(-1px);
}
.card--clickable:focus-visible {
  border-color: var(--c-accent);
  box-shadow: var(--sh-focus);
  outline: none;
}
.card--disabled {
  background: var(--c-surface-2);
  cursor: not-allowed;
}
.card--disabled:hover { transform: none; border-color: var(--c-border); background: var(--c-surface-2); }

/* ---------- badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  height: 22px;
  padding: 0 var(--space-2);
  border-radius: var(--r-pill);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.01em;
  background: var(--c-surface-2);
  color: var(--c-fg-muted);
  border: 1px solid var(--c-border);
  white-space: nowrap;
}
.badge--accent  { background: var(--c-accent-soft);  color: var(--c-accent-soft-fg); border-color: transparent; }
.badge--success { background: var(--c-success-soft); color: var(--c-success);        border-color: transparent; }
.badge--warning { background: var(--c-warning-soft); color: var(--c-warning);        border-color: transparent; }
.badge--coming  { background: var(--c-surface-2);    color: var(--c-fg-muted);       border-color: var(--c-border); }
.badge--coming::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-fg-subtle);
}

/* ---------- header ---------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in oklab, var(--c-bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--c-border);
}
.app-header__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.app-header--bare .app-header__inner {
  max-width: none;
  padding: var(--space-3) var(--space-5);
}
.app-header__user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.app-header__email {
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--c-fg-muted);
  font-feature-settings: "tnum" 1;
}
@media (max-width: 560px) { .app-header__email { display: none; } }

.app-header__title {
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  color: var(--c-fg);
  margin: 0;
}
.app-header__crumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-caption);
  color: var(--c-fg-muted);
}
.app-header__crumb-sep {
  width: 1px;
  height: 14px;
  background: var(--c-border);
}

/* ---------- icon button ---------- */
.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--c-fg-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--c-surface-2); color: var(--c-fg); }
.icon-btn svg { width: 18px; height: 18px; display: block; }
.icon-btn--rail {
  position: relative;
}
.icon-btn--rail::after {
  content: "";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 2px solid var(--c-bg);
  box-sizing: content-box;
  display: none;
}
.icon-btn--rail[data-dot="true"]::after { display: block; }

/* ---------- sidebar ---------- */
.app-sidebar {
  display: flex;
  flex-direction: column;
  background: var(--c-surface-2);
  border-right: 1px solid var(--c-border);
  height: 100dvh;
  position: sticky;
  top: 0;
  width: 256px;
  flex-shrink: 0;
  z-index: 15;
}
.app-sidebar__head {
  padding: var(--space-4) var(--space-4) var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.app-sidebar__close {
  display: none;
  margin-left: auto;
}
.app-sidebar__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2) var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.app-sidebar__group { display: flex; flex-direction: column; gap: 2px; }
.app-sidebar__label {
  padding: var(--space-3) var(--space-3) var(--space-1);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--c-fg-subtle);
  font-weight: 600;
}
.app-sidebar__divider {
  height: 1px;
  background: var(--c-border);
  margin: var(--space-2) var(--space-2);
}
.app-sidebar__foot {
  padding: var(--space-3);
  border-top: 1px solid var(--c-border);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 7px var(--space-3);
  border-radius: var(--r-sm);
  text-decoration: none;
  color: var(--c-fg-muted);
  font-size: var(--fs-body);
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  position: relative;
  min-height: 34px;
}
.sidebar-item__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--c-fg-subtle);
  transition: color var(--dur) var(--ease);
}
.sidebar-item__icon svg { width: 100%; height: 100%; display: block; }
.sidebar-item__label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-item__meta {
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--c-fg-subtle);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xs);
  padding: 1px 5px;
  font-feature-settings: "tnum" 1;
  flex-shrink: 0;
}
.sidebar-item:hover {
  background: var(--c-surface);
  color: var(--c-fg);
}
.sidebar-item:hover .sidebar-item__icon { color: var(--c-fg-muted); }
.sidebar-item[aria-current="page"] {
  background: var(--c-surface-elev);
  color: var(--c-fg);
  box-shadow: var(--sh-1);
}
.sidebar-item[aria-current="page"] .sidebar-item__icon { color: var(--c-accent); }
.sidebar-item[aria-disabled="true"] {
  pointer-events: none;
  color: var(--c-fg-subtle);
}

/* user chip */
.user-chip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--r-md);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
}
.user-chip__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-accent);
  color: var(--c-accent-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.user-chip__info { flex: 1; min-width: 0; line-height: 1.2; }
.user-chip__name { font-size: 13px; font-weight: 500; color: var(--c-fg); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-chip__email { font-size: 11px; color: var(--c-fg-muted); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--font-mono); font-feature-settings: "tnum" 1; }

/* ---------- sidebar mini progress ---------- */
.sidebar-progress {
  margin: var(--space-3) var(--space-2) var(--space-2);
  padding: var(--space-3);
  border-radius: var(--r-md);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.sidebar-progress__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 11px;
  color: var(--c-fg-muted);
  font-weight: 500;
}
.sidebar-progress__value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-fg);
  font-feature-settings: "tnum" 1;
}
.progress-track {
  height: 4px;
  background: var(--c-surface-2);
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.progress-track__fill {
  height: 100%;
  background: var(--c-accent);
  border-radius: 2px;
}
.sidebar-progress__hint { font-size: 11px; color: var(--c-fg-subtle); margin: 0; }

/* mobile drawer overlay */
.scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.32);
  z-index: 14;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
}
.scrim[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}
@media (max-width: 1023px) {
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform var(--dur) var(--ease);
    box-shadow: 0 24px 48px -16px rgba(0,0,0,.18);
  }
  .app-sidebar[data-open="true"] { transform: translateX(0); }
  .app-sidebar__close { display: inline-flex; }
}
@media (min-width: 1024px) {
  .app-sidebar__close { display: none !important; }
  .scrim { display: none; }
  .icon-btn--menu { display: none; }
}

/* ---------- KPI cards ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
@media (max-width: 920px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .kpi-grid { grid-template-columns: 1fr; gap: var(--space-2); } }

.kpi {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}
.kpi__label {
  font-size: var(--fs-caption);
  color: var(--c-fg-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.kpi__label-icon {
  width: 14px;
  height: 14px;
  color: var(--c-fg-subtle);
}
.kpi__value {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.kpi__unit {
  font-size: 14px;
  color: var(--c-fg-muted);
  font-weight: 400;
  letter-spacing: 0;
}
.kpi__foot {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-caption);
  color: var(--c-fg-muted);
}
.kpi__spark {
  margin-left: auto;
  width: 64px;
  height: 22px;
}
.kpi__spark path { fill: none; stroke: var(--c-accent); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.kpi__spark-area { fill: var(--c-accent); opacity: 0.10; }

.delta {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: var(--r-xs);
  border: 1px solid transparent;
}
.delta--up { color: var(--c-success); background: var(--c-success-soft); }
.delta--down { color: var(--c-error); background: var(--c-error-soft); }
.delta--flat { color: var(--c-fg-muted); background: var(--c-surface-2); border-color: var(--c-border); }
.delta::before {
  font-size: 9px;
  line-height: 1;
}
.delta--up::before { content: "▲"; }
.delta--down::before { content: "▼"; }
.delta--flat::before { content: "●"; font-size: 6px; }

/* ---------- panel (chart card) ---------- */
.panel {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.panel__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--c-border);
  flex-wrap: wrap;
}
.panel__title {
  font-size: var(--fs-body);
  font-weight: 600;
  letter-spacing: -0.005em;
  margin: 0;
  color: var(--c-fg);
}
.panel__sub {
  font-size: var(--fs-caption);
  color: var(--c-fg-muted);
  margin: 0;
}
.panel__head-meta { margin-left: auto; display: flex; align-items: center; gap: var(--space-3); }
.panel__body { padding: var(--space-4); flex: 1; }
.panel__body--flush { padding: 0; }

/* segment control */
.segment {
  display: inline-flex;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  padding: 2px;
  gap: 0;
}
.segment__btn {
  height: 26px;
  padding: 0 var(--space-3);
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--c-fg-muted);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  letter-spacing: 0.005em;
}
.segment__btn:hover { color: var(--c-fg); }
.segment__btn[aria-pressed="true"] {
  background: var(--c-surface-elev);
  color: var(--c-fg);
  box-shadow: var(--sh-1);
}

/* ---------- dashboard charts ---------- */
.chart-bars {
  width: 100%;
  height: 200px;
  display: block;
}
.chart-bars .axis { stroke: var(--c-border); stroke-width: 1; }
.chart-bars .gridline { stroke: var(--c-border); stroke-width: 1; stroke-dasharray: 2 4; opacity: 0.7; }
.chart-bars .label { fill: var(--c-fg-subtle); font-family: var(--font-mono); font-size: 10px; }
.chart-bars .bar { fill: var(--c-surface-2); stroke: var(--c-border-strong); stroke-width: 1; }
.chart-bars .bar--accent { fill: var(--c-accent); stroke: var(--c-accent); }
.chart-bars .bar--muted { fill: var(--c-surface-2); stroke: var(--c-border-strong); }
.chart-bars .label--accent { fill: var(--c-accent); font-weight: 600; }

.chart-line {
  width: 100%;
  height: 180px;
  display: block;
}
.chart-line .area { fill: var(--c-accent); opacity: 0.10; }
.chart-line .stroke { fill: none; stroke: var(--c-accent); stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }
.chart-line .gridline { stroke: var(--c-border); stroke-width: 1; stroke-dasharray: 2 4; opacity: 0.6; }
.chart-line .label { fill: var(--c-fg-subtle); font-family: var(--font-mono); font-size: 10px; }
.chart-line .marker { fill: var(--c-surface); stroke: var(--c-accent); stroke-width: 1.5; }

/* ring chart */
.ring {
  display: grid;
  place-items: center;
  position: relative;
  width: 180px;
  height: 180px;
  margin: var(--space-2) auto;
}
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring__track { fill: none; stroke: var(--c-surface-2); stroke-width: 14; }
.ring__value { fill: none; stroke: var(--c-accent); stroke-width: 14; stroke-linecap: round; }
.ring__inner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
}
.ring__pct {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  line-height: 1;
}
.ring__label {
  font-size: var(--fs-micro);
  color: var(--c-fg-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  margin-top: 4px;
  font-weight: 600;
}

/* breakdown legend list */
.legend-list {
  list-style: none;
  margin: var(--space-3) 0 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.legend-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-caption);
}
.legend-list__dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
  background: var(--c-fg-subtle);
}
.legend-list__dot[data-bg="accent"]      { background: var(--c-accent); }
.legend-list__dot[data-bg="accent-soft"] { background: color-mix(in oklab, var(--c-accent) 50%, var(--c-surface)); }
.legend-list__dot[data-bg="muted"]       { background: var(--c-fg-subtle); }
.legend-list__label { color: var(--c-fg-muted); }
.legend-list__value {
  margin-left: auto;
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  color: var(--c-fg);
  font-size: 12px;
}

/* heatmap */
.heatmap {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  overflow-x: auto;
  padding-bottom: var(--space-1);
}
.heatmap__weeks {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 4px;
  flex: 1;
  min-width: 360px;
}
.heatmap__week {
  display: grid;
  grid-template-rows: repeat(7, 1fr);
  gap: 4px;
}
.heatmap__cell {
  aspect-ratio: 1;
  border-radius: 3px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  position: relative;
}
.heatmap__cell[data-level="1"] { background: color-mix(in oklab, var(--c-accent) 18%, var(--c-surface)); border-color: transparent; }
.heatmap__cell[data-level="2"] { background: color-mix(in oklab, var(--c-accent) 38%, var(--c-surface)); border-color: transparent; }
.heatmap__cell[data-level="3"] { background: color-mix(in oklab, var(--c-accent) 65%, var(--c-surface)); border-color: transparent; }
.heatmap__cell[data-level="4"] { background: var(--c-accent); border-color: transparent; }
.heatmap__legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--c-fg-muted);
  flex-shrink: 0;
  padding-top: 2px;
}
.heatmap__legend-cells { display: flex; gap: 3px; }
.heatmap__legend-cell {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
}

/* skill bars */
.skill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.skill {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2);
  align-items: center;
  row-gap: 6px;
}
.skill__label { font-size: var(--fs-caption); color: var(--c-fg); font-weight: 500; }
.skill__value {
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  font-size: 12px;
  color: var(--c-fg-muted);
}
.skill__value strong { color: var(--c-fg); font-weight: 500; }
.skill__bar {
  grid-column: 1 / -1;
  height: 6px;
  background: var(--c-surface-2);
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--c-border);
  position: relative;
}
.skill__bar-fill {
  height: 100%;
  background: var(--c-accent);
  border-radius: 3px;
}
.skill__bar-target {
  position: absolute;
  top: -3px;
  bottom: -3px;
  width: 1.5px;
  background: var(--c-fg);
  opacity: 0.5;
}

/* activity feed */
.activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.activity {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--c-border);
  align-items: flex-start;
}
.activity:last-child { border-bottom: none; }
.activity:first-child { padding-top: 0; }
.activity__icon {
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--c-fg-muted);
  flex-shrink: 0;
}
.activity__icon--accent { background: var(--c-accent-soft); color: var(--c-accent-soft-fg); border-color: transparent; }
.activity__body { min-width: 0; line-height: 1.4; }
.activity__title {
  font-size: var(--fs-body);
  color: var(--c-fg);
  font-weight: 500;
  margin: 0 0 2px 0;
  letter-spacing: -0.005em;
}
.activity__meta { font-size: 12px; color: var(--c-fg-muted); margin: 0; }
.activity__time {
  font-size: 11px;
  color: var(--c-fg-subtle);
  font-family: var(--font-mono);
  font-feature-settings: "tnum" 1;
  white-space: nowrap;
  padding-top: 2px;
}

/* ---------- logo ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--c-fg);
}
.logo__mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--c-fg);
  color: var(--c-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.04em;
  position: relative;
  flex-shrink: 0;
}
.logo__mark::after {
  content: "";
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 2px solid var(--c-bg);
  box-sizing: content-box;
}
.logo__wordmark {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.logo__wordmark span { color: var(--c-fg-muted); font-weight: 400; margin-left: 4px; }

/* ---------- alert ---------- */
.alert {
  padding: var(--space-3);
  border-radius: var(--r-md);
  font-size: var(--fs-caption);
  display: flex;
  gap: var(--space-2);
  align-items: flex-start;
  border: 1px solid;
  line-height: 1.5;
}
.alert--error   { background: var(--c-error-soft);   border-color: color-mix(in oklab, var(--c-error) 30%, transparent);   color: var(--c-error); }
.alert--success { background: var(--c-success-soft); border-color: color-mix(in oklab, var(--c-success) 30%, transparent); color: var(--c-success); }
.alert--info    { background: var(--c-accent-soft);  border-color: transparent; color: var(--c-accent-soft-fg); }
.alert__icon { font-size: 14px; line-height: 1; padding-top: 2px; flex-shrink: 0; }

/* ---------- dev toolbar ---------- */
.toolbar {
  position: fixed;
  bottom: var(--space-3);
  right: var(--space-3);
  z-index: 20;
  background: var(--c-surface-elev);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  padding: 4px;
  display: flex;
  gap: 2px;
  box-shadow: var(--sh-3);
  font-size: var(--fs-micro);
}
.toolbar__btn {
  height: 28px;
  padding: 0 var(--space-3);
  border-radius: var(--r-pill);
  border: none;
  background: transparent;
  color: var(--c-fg-muted);
  cursor: pointer;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  font-family: var(--font-sans);
}
.toolbar__btn:hover { color: var(--c-fg); background: var(--c-surface-2); }
.toolbar__btn[aria-pressed="true"] { background: var(--c-fg); color: var(--c-bg); }
.toolbar__sep { width: 1px; align-self: stretch; background: var(--c-border); margin: 4px 2px; }
@media (max-width: 480px) {
  .toolbar { bottom: 8px; right: 8px; padding: 3px; }
  .toolbar__btn { height: 24px; padding: 0 10px; }
}