/* Layout and components. Mobile-first (375px baseline), bottom tab bar on
   phones, sidebar from 900px up. No horizontal scroll anywhere. */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
  -webkit-text-size-adjust: 100%;
}

body {
  overflow-x: hidden;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main {
  flex: 1;
  min-width: 0;
  padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
}

.screen {
  padding: var(--space-4);
  max-width: 640px;
  margin: 0 auto;
}

.screen-narrow {
  max-width: 420px;
}

.screen-centered {
  padding-top: var(--space-6);
}

.screen-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 var(--space-4);
}

.section-heading {
  font-size: 1.05rem;
  font-weight: 700;
  margin: var(--space-5) 0 var(--space-2);
}

.day-heading {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: var(--space-4) 0 var(--space-2);
}

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

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

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

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

/* ---------- nav ---------- */

.nav {
  order: 2;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  z-index: 20;
}

.nav-list {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 64px;
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  height: 100%;
  min-width: var(--touch);
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.68rem;
}

.nav-item-active {
  color: var(--color-accent);
}

.nav-item-primary {
  color: var(--color-accent);
}

.nav-item-primary svg {
  background: var(--color-accent);
  color: var(--color-accent-text);
  border-radius: var(--radius-pill);
  padding: 8px;
  box-sizing: content-box;
  margin-top: -18px;
  box-shadow: var(--shadow-card);
}

/* ---------- cards, chips, buttons ---------- */

.card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-card);
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 var(--space-2);
}

.card-lead {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 var(--space-1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch);
  padding: 0 var(--space-4);
  border-radius: var(--radius-md);
  border: none;
  background: var(--color-neutral-soft);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}

.btn-danger-text {
  color: var(--color-error);
}

.btn-block {
  width: 100%;
}

.btn-post {
  margin-top: var(--space-4);
  font-size: 1.05rem;
}

label.btn {
  display: flex;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius-pill);
  padding: 7px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--color-neutral-soft);
  min-height: 32px;
  cursor: pointer;
}

.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.chip-ok {
  background: var(--color-ok-soft);
  color: var(--color-ok);
}

.chip-stale,
.chip-warn {
  background: var(--color-warn-soft);
  color: var(--color-warn);
}

.chip-error {
  background: var(--color-error-soft);
  color: var(--color-error);
}

.chip-not_configured {
  background: var(--color-neutral-soft);
  color: var(--color-text-muted);
}

.chip-time {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  cursor: default;
}

.chip-remove {
  display: inline-flex;
  border: none;
  background: none;
  color: inherit;
  padding: 0;
  cursor: pointer;
}

.chip-add {
  background: transparent;
  border: 1px dashed var(--color-border);
  color: var(--color-text-muted);
}

/* ---------- home ---------- */

.publishing-strip {
  display: flex;
  width: 100%;
  border: none;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  margin-bottom: var(--space-4);
  cursor: pointer;
  box-shadow: var(--shadow-card);
  text-align: left;
}

.publishing-cell {
  flex: 1;
  text-align: center;
}

.publishing-value {
  font-size: 1.3rem;
  font-weight: 700;
}

.publishing-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.app-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
}

.app-headline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-3);
  gap: var(--space-3);
}

.app-headline-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
}

.app-headline-change {
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 2px;
}

.sparkline-line {
  fill: none;
  stroke-width: 2;
}

.sparkline-up {
  stroke: var(--color-ok);
}

.sparkline-down {
  stroke: var(--color-error);
}

.sparkline-dot.sparkline-up {
  fill: var(--color-ok);
}

.sparkline-dot.sparkline-down {
  fill: var(--color-error);
}

.sparkline-flat {
  stroke: var(--color-text-muted);
  stroke-width: 2;
  stroke-dasharray: 3 3;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.metric-value {
  font-size: 1.15rem;
  font-weight: 700;
}

.metric-label {
  font-size: 0.78rem;
}

.metric-change {
  font-size: 0.75rem;
  font-weight: 600;
}

/* ---------- toast ---------- */

.toast-root {
  position: fixed;
  left: 0;
  right: 0;
  bottom: calc(76px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
  z-index: 40;
}

.toast {
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  max-width: 90vw;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow-card);
}

.toast-error {
  background: var(--color-error);
  color: #ffffff;
}

.toast-success {
  background: var(--color-ok);
  color: #ffffff;
}

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

/* ---------- forms ---------- */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-compact {
  margin-top: var(--space-3);
}

.form-row {
  display: flex;
  gap: var(--space-2);
}

.field-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.field-error {
  color: var(--color-error);
  font-size: 0.85rem;
  margin: 0;
}

.input {
  width: 100%;
  min-height: var(--touch);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  padding: var(--space-3);
  font-size: 0.95rem;
}

textarea.input {
  min-height: 80px;
  resize: vertical;
}

.input:focus,
.btn:focus-visible,
.nav-item:focus-visible,
.chip:focus-visible,
.icon-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.input-key {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
}

.input-time {
  min-height: 40px;
  width: auto;
}

.checkbox-row,
.toggle-row,
.radio-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--touch);
  font-size: 0.92rem;
}

.checkbox-row input,
.toggle-row input,
.radio-row input {
  width: 20px;
  height: 20px;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.steps {
  margin: 0 0 var(--space-3);
  padding-left: var(--space-5);
  color: var(--color-text-muted);
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* ---------- posts ---------- */

.post-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.post-row {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-card);
}

.post-row-top {
  display: flex;
  gap: var(--space-3);
}

.post-thumb {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--color-bg-sunken);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
}

.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-thumb-badge {
  position: absolute;
  right: 2px;
  bottom: 2px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: var(--radius-pill);
}

.post-row-info {
  min-width: 0;
  flex: 1;
}

.post-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.post-caption {
  margin: 2px 0;
  font-size: 0.92rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.post-when {
  font-size: 0.78rem;
}

.post-error {
  font-size: 0.82rem;
  margin-top: 2px;
}

.post-permalink {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-1);
  color: var(--color-accent);
  font-size: 0.82rem;
  text-decoration: none;
}

.post-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.icon-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-height: var(--touch);
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-neutral-soft);
  font-size: 0.7rem;
  cursor: pointer;
}

.icon-btn-ok {
  background: var(--color-ok-soft);
  color: var(--color-ok);
}

.icon-btn-danger {
  background: var(--color-error-soft);
  color: var(--color-error);
}

.icon-btn-neutral {
  color: var(--color-text-muted);
}

.post-edit-panel:not([hidden]) {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

/* ---------- accounts ---------- */

.account-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.account-username {
  font-size: 1.05rem;
  font-weight: 700;
}

.posting-times {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.connect-card {
  margin-top: var(--space-5);
}

/* ---------- new post ---------- */

.np-section {
  margin-bottom: var(--space-5);
}

.np-hint {
  font-size: 0.82rem;
  margin: 2px 0 var(--space-3);
}

.np-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.np-tile {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-sunken);
}

.np-tile img,
.np-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.np-tile-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.np-tile-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: rgba(0, 0, 0, 0.25);
}

.np-tile-progress-fill {
  height: 100%;
  background: var(--color-accent);
  width: 0;
  transition: width 0.15s ease;
}

.np-tile-error {
  outline: 2px solid var(--color-error);
}

.np-tile-error-text {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4px;
}

.account-toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.account-toggle {
  min-height: var(--touch);
  padding: 0 var(--space-4);
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
  font-weight: 600;
}

.account-toggle-selected {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.np-write-row {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.np-write-row .input {
  flex: 1;
}

/* ---------- desktop / wide layout ---------- */

@media (min-width: 900px) {
  #app {
    flex-direction: row;
  }

  .nav {
    order: 0;
    position: sticky;
    top: 0;
    left: auto;
    bottom: auto;
    height: 100vh;
    width: 220px;
    flex-shrink: 0;
    border-top: none;
    border-right: 1px solid var(--color-border);
    padding: var(--space-5) var(--space-3);
  }

  .nav-list {
    flex-direction: column;
    height: auto;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav-item {
    flex-direction: row;
    justify-content: flex-start;
    gap: var(--space-3);
    height: var(--touch);
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
  }

  .nav-item-active {
    background: var(--color-accent-soft);
  }

  .nav-item-primary {
    background: var(--color-accent);
    color: var(--color-accent-text);
    margin: var(--space-2) 0;
  }

  .nav-item-primary svg {
    background: none;
    padding: 0;
    margin-top: 0;
  }

  .main {
    padding-bottom: var(--space-6);
  }

  .screen {
    padding: var(--space-6);
    max-width: 720px;
  }
}