/* Hallmark · Workbench app chrome · Unmask App
 * pre-emit critique: P4 H4 E4 S4 R4 V4
 */

html,
body {
  overflow-x: clip;
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink);
  background: var(--color-paper);
  min-height: 100vh;
}

html[data-bg="custom"] body {
  background-image: var(--user-bg);
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

html[data-bg="custom"] .app-shell,
html[data-bg="custom"] .rail,
html[data-bg="custom"] .topbar,
html[data-bg="custom"] .messenger,
html[data-bg="custom"] .timer-stage,
html[data-bg="custom"] .pomo-meta,
html[data-bg="custom"] .session-col,
html[data-bg="custom"] .account-card,
html[data-bg="custom"] .flash-card {
  background: color-mix(in oklch, var(--color-paper) 88%, transparent);
  backdrop-filter: blur(10px);
}

h1,
h2 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  overflow-wrap: anywhere;
  min-width: 0;
}

h2 {
  font-size: var(--text-lg);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

code {
  font-family: var(--font-mono);
  font-size: 0.82em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden {
  display: none !important;
}

.sky-layer {
  display: none;
  pointer-events: none;
}

html[data-theme="dark"] .sky-layer {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(1px 1px at 12% 18%, oklch(98% 0 0 / 0.85), transparent 2px),
    radial-gradient(1px 1px at 28% 72%, oklch(98% 0 0 / 0.55), transparent 2px),
    radial-gradient(1.5px 1.5px at 63% 22%, oklch(98% 0 0 / 0.7), transparent 2px),
    radial-gradient(1px 1px at 81% 58%, oklch(98% 0 0 / 0.45), transparent 2px),
    radial-gradient(1px 1px at 47% 41%, oklch(98% 0 0 / 0.6), transparent 2px),
    radial-gradient(1200px 700px at 80% -10%, oklch(32% 0.08 280 / 0.55), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, oklch(28% 0.07 250 / 0.4), transparent 55%);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: 100vh;
}

.rail {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-md);
  border-right: var(--rule-hair) solid var(--color-line);
  background: var(--color-paper-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: var(--text-xs);
}

.brand-name {
  margin: 0;
  font-weight: 700;
}

.brand-tag,
.rail-note,
.topbar-sub,
.stat-hint,
.stat-label,
.kicker,
.flash-side {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-xs);
}

.rail-user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-paper);
}

.avatar {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.rail-user-name {
  margin: 0;
  font-weight: 600;
  font-size: var(--text-sm);
}

.rail-user-meta {
  margin: 0;
  font-size: 0.68rem;
  color: var(--color-ink-soft);
}

.min-0 { min-width: 0; }

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  flex: 1;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  border: var(--rule-hair) solid transparent;
  background: transparent;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.nav-btn:hover,
.nav-btn.is-hover {
  background: var(--color-paper-3);
  color: var(--color-ink);
}

.nav-btn:focus-visible,
.btn-primary:focus-visible,
.btn-ghost:focus-visible,
.chip:focus-visible,
.period-check:focus-visible,
.flash-card:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.nav-btn:active,
.nav-btn.is-active {
  background: var(--color-accent-soft);
  color: var(--color-ink);
  border-color: var(--color-accent);
  font-weight: 600;
}

.nav-glyph {
  font-size: 0.85rem;
  width: 1rem;
}

.rail-note {
  padding-top: var(--space-sm);
  border-top: var(--rule-hair) solid var(--color-line);
}

.stage {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  border-bottom: var(--rule-hair) solid var(--color-line);
  background: color-mix(in oklch, var(--color-paper) 88%, transparent);
}

.topbar-copy {
  flex: 1;
  min-width: 0;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  border: var(--rule-hair) solid var(--color-line);
  background: var(--color-paper);
  color: var(--color-ink);
  font-weight: 600;
}

.menu-bars {
  width: 1.05rem;
  height: 0.7rem;
  display: inline-block;
  background:
    linear-gradient(var(--color-ink), var(--color-ink)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--color-ink), var(--color-ink)) 0 50% / 100% 2px no-repeat,
    linear-gradient(var(--color-ink), var(--color-ink)) 0 100% / 100% 2px no-repeat;
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 12;
  background: oklch(20% 0.04 280 / 0.4);
}

.menu-toggle:hover,
.menu-toggle.is-hover { background: var(--color-paper-3); }
.menu-toggle:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.menu-toggle:active,
.menu-toggle.is-active { transform: translateY(1px); }
.menu-toggle:disabled { opacity: 0.45; cursor: not-allowed; }
.menu-toggle[data-state="loading"] { opacity: 0.7; }
.menu-toggle[data-state="error"] { border-color: var(--color-danger); }
.menu-toggle[data-state="success"] { border-color: var(--color-ok); }

.stage-body {
  flex: 1;
  min-height: 0;
  padding: var(--space-lg) var(--space-xl);
}

.tab-panel { display: none; }
.tab-panel.is-active { display: block; height: 100%; }

.btn-primary,
.btn-ghost,
.chip {
  border-radius: var(--radius-sm);
  border: var(--rule-hair) solid transparent;
  padding: 0.55rem 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-mid) var(--ease-in-out), opacity var(--dur-fast) var(--ease-out);
}

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

.btn-primary:hover,
.btn-primary.is-hover {
  background: var(--color-accent-hover);
}

.btn-primary:active,
.btn-primary.is-active {
  transform: translateY(1px);
}

.btn-primary:disabled,
.btn-ghost:disabled,
.btn-primary[data-state="loading"] {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-ghost {
  background: var(--color-paper);
  color: var(--color-ink);
  border-color: var(--color-line);
}

.btn-ghost:hover {
  background: var(--color-paper-3);
}

.chip {
  background: var(--color-paper-2);
  color: var(--color-ink-soft);
  border-color: var(--color-line);
}

.chip.is-active {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}

/* Messenger */
.messenger {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: calc(100vh - 7.5rem);
  min-height: 28rem;
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.messenger-head {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: var(--rule-hair) solid var(--color-line);
  background: var(--color-paper-2);
}

.peer-name {
  margin: 0;
  font-weight: 600;
}

.messenger-actions {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.thread {
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background:
    linear-gradient(180deg, color-mix(in oklch, var(--color-accent) 4%, transparent), transparent 8rem);
}

.thread-empty {
  margin: auto;
  max-width: 28rem;
  text-align: center;
  color: var(--color-ink-soft);
}

.msg-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-xs);
  max-width: min(86%, 38rem);
}

.msg-row.is-self { align-self: flex-end; flex-direction: row-reverse; }
.msg-row.is-peer { align-self: flex-start; }
.msg-row.is-sys {
  align-self: center;
  max-width: 90%;
}

.msg-avatar {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-ink);
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  border: var(--rule-hair) solid var(--color-line);
}

.msg {
  max-width: 100%;
  min-width: 0;
  padding: 0.65rem 0.9rem;
  border-radius: 1.1rem;
  word-break: break-word;
}

.msg-meta {
  display: block;
  font-size: 0.65rem;
  margin-bottom: 0.2rem;
  color: var(--color-ink-soft);
}

.msg.is-self {
  align-self: flex-end;
  background: var(--color-self);
  color: var(--color-accent-ink);
  border-bottom-right-radius: 0.25rem;
}

.msg.is-self .msg-meta { color: color-mix(in oklch, var(--color-accent-ink) 80%, transparent); }

.msg.is-peer {
  align-self: flex-start;
  background: var(--color-peer);
  border: var(--rule-hair) solid var(--color-line);
  border-bottom-left-radius: 0.25rem;
}

.msg.is-ai {
  align-self: stretch;
  max-width: 100%;
  background: var(--color-ai);
  color: var(--color-ai-ink);
  border-bottom-left-radius: 0.25rem;
}

.msg.is-sys {
  align-self: center;
  max-width: 90%;
  background: transparent;
  color: var(--color-ink-soft);
  font-size: var(--text-xs);
  text-align: center;
}

.composer {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-top: var(--rule-hair) solid var(--color-line);
  background: var(--color-paper-2);
}

.composer input,
.account-card input,
.deck-form input {
  flex: 1;
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.8rem;
  background: var(--color-paper);
  color: var(--color-ink);
  min-width: 0;
}

.composer input[data-state="error"],
.account-card input[data-state="error"] {
  border-color: var(--color-danger);
}

/* Pomodoro */
.pomodoro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-lg);
}

.timer-stage,
.pomo-meta,
.session-col,
.account-card,
.flash-card {
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
  padding: var(--space-xl);
}

.timer-stage {
  display: grid;
  place-items: center;
  text-align: center;
  gap: var(--space-md);
  min-height: 22rem;
}

.timer-face {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(3rem, 12vw, var(--text-display));
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.timer-actions {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  justify-content: center;
}

.pomo-custom {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)) auto;
  gap: var(--space-sm);
  align-items: end;
  width: min(100%, 28rem);
}

.pomo-custom label {
  display: grid;
  gap: var(--space-2xs);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  text-align: left;
}

.pomo-custom input {
  width: 100%;
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  background: var(--color-paper);
  color: var(--color-ink);
}

.care-banner {
  margin: 0 0 var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: var(--rule-hair) solid color-mix(in oklch, var(--color-ok) 40%, var(--color-line));
  background: color-mix(in oklch, var(--color-ok) 10%, var(--color-paper));
}

.care-banner-title {
  margin: 0 0 var(--space-2xs);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 600;
}

.care-banner p { margin: 0; }

.theme-presets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xs);
}

.theme-swatch {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  text-align: left;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  border: var(--rule-hair) solid var(--color-line);
  background: var(--color-paper);
  color: var(--color-ink);
  font-weight: 600;
  font-size: var(--text-xs);
}

.theme-swatch:hover,
.theme-swatch.is-hover { background: var(--color-paper-3); }
.theme-swatch:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.theme-swatch:active,
.theme-swatch.is-active { transform: translateY(1px); }
.theme-swatch:disabled { opacity: 0.45; cursor: not-allowed; }
.theme-swatch.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}
.theme-swatch[data-state="loading"] { opacity: 0.7; }
.theme-swatch[data-state="error"] { border-color: var(--color-danger); }
.theme-swatch[data-state="success"] { border-color: var(--color-ok); }

.swatch-bar {
  height: 0.55rem;
  border-radius: var(--radius-pill);
}

.swatch-bar.ocean { background: linear-gradient(90deg, oklch(51% 0.13 250), oklch(80% 0.08 230)); }
.swatch-bar.sunset { background: linear-gradient(90deg, oklch(58% 0.16 40), oklch(78% 0.12 80)); }
.swatch-bar.emerald { background: linear-gradient(90deg, oklch(46% 0.1 155), oklch(75% 0.08 145)); }
.swatch-bar.midnight { background: linear-gradient(90deg, oklch(22% 0.05 280), oklch(72% 0.12 250)); }

.bg-upload-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.pomo-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.stat-tile {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--color-paper-2);
}

.stat-value {
  margin: 0.15rem 0 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
}

.health-copy {
  margin: 0;
  color: var(--color-ink-soft);
}

/* TKB */
.tkb-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.session-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.period-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.period-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  border: var(--rule-hair) solid var(--color-line);
}

.period-row.is-done {
  background: color-mix(in oklch, var(--color-ok) 12%, var(--color-paper));
  border-color: color-mix(in oklch, var(--color-ok) 40%, var(--color-line));
}

.period-check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: transparent;
  border: 0;
  color: inherit;
  padding: 0;
}

.tick {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 0.3rem;
  border: 1.5px solid var(--color-accent);
  display: grid;
  place-items: center;
  font-size: 0.7rem;
}

.period-row.is-done .tick {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

/* Study */
.study-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.flash-card {
  width: 100%;
  min-height: 14rem;
  text-align: left;
  cursor: pointer;
}

.flash-text {
  display: block;
  margin-top: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.srs-row,
.quiz-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.quiz-q {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin: 0;
}

.quiz-opt {
  width: 100%;
  text-align: left;
  background: var(--color-paper);
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
}

.quiz-opt.is-right { border-color: var(--color-ok); background: color-mix(in oklch, var(--color-ok) 12%, var(--color-paper)); }
.quiz-opt.is-wrong { border-color: var(--color-danger); }

.deck-form {
  display: grid;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.deck-form label,
.account-card label {
  display: grid;
  gap: var(--space-2xs);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
}

.deck-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-xs);
}

.deck-item {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-line);
  border-radius: var(--radius-sm);
}

/* Account */
.account-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.account-card {
  display: grid;
  gap: var(--space-sm);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.toggle-row {
  display: flex !important;
  flex-direction: row;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-ink);
  font-size: var(--text-sm);
}

.form-error {
  color: var(--color-danger);
  margin: 0;
}

.alias-line {
  font-family: var(--font-mono);
  margin: 0;
}

.acc-status {
  margin: 0;
  color: var(--color-ok);
}

.toast {
  position: fixed;
  z-index: 20;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 22rem;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-md);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: oklch(20% 0.04 280 / 0.45);
  display: none;
  place-items: center;
  padding: var(--space-md);
}

.modal.is-open {
  display: grid;
}

[hidden] {
  display: none !important;
}

.modal-card {
  max-width: 26rem;
  background: var(--color-paper);
  color: var(--color-ink);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: var(--rule-hair) solid var(--color-line);
}

@media (max-width: 768px) {
  .app-shell {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto 1fr;
  }

  .menu-toggle { display: inline-flex; }

  .rail {
    position: fixed;
    z-index: 14;
    inset: 0 auto 0 0;
    width: min(18.5rem, 88vw);
    transform: translateX(-105%);
    transition: transform var(--dur-mid) var(--ease-out);
    border-right: var(--rule-hair) solid var(--color-line);
    box-shadow: var(--shadow-soft);
  }

  html[data-nav="open"] .rail {
    transform: translateX(0);
  }

  .rail-nav {
    flex-direction: column;
    overflow-y: auto;
    flex: 1 1 auto;
  }

  .nav-btn { width: 100%; }

  .stage-body { padding: var(--space-md); }

  .topbar { padding: var(--space-md); align-items: center; }

  .pomodoro-layout,
  .session-grid,
  .account-grid,
  .theme-presets,
  .pomo-custom {
    grid-template-columns: minmax(0, 1fr);
  }

  .messenger { height: calc(100dvh - 9.5rem); min-height: 22rem; }

  .timer-face { font-size: 3.25rem; }

  .messenger-head {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 769px) {
  html[data-nav="open"] .rail { transform: none; }
  .nav-backdrop { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}
/* Styling Avatar Presets & Custom File Avatar */
.avatar-presets {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.3rem;
}

.avatar-opt {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-line);
  background: var(--color-paper-2);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast);
}

.avatar-opt:hover {
  transform: scale(1.1);
}

.avatar-opt.is-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.avatar-frame {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-pill);
  overflow: hidden;
  flex-shrink: 0;
}

.avatar-frame .avatar {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-pill);
}