:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;

  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-border: #e2e2e2;
  --color-input-border: #cccccc;
  --color-sidebar-bg: #1f2430;
  --color-sidebar-text: #ffffff;
  --color-primary: #3558ea;
  --color-primary-hover: #4d70f2;
  --color-primary-text: #ffffff;
  --color-danger: #b91c1c;
  --color-danger-bg: #fee2e2;
  --color-danger-border: #f3c1c1;
  --hover-tint: rgba(0, 0, 0, 0.045);

  --status-draft-bg: #e5e5e5;   --status-draft-text: #444444;   --status-draft-border: #bbbbbb;
  --status-scheduled-bg: #dbeafe; --status-scheduled-text: #1d4ed8; --status-scheduled-border: #93c5fd;
  --status-posting-bg: #fef3c7;   --status-posting-text: #92400e;   --status-posting-border: #fcd34d;
  --status-posted-bg: #dcfce7;    --status-posted-text: #15803d;    --status-posted-border: #86efac;
  --status-failed-bg: #fee2e2;    --status-failed-text: #b91c1c;    --status-failed-border: #fca5a5;
  --status-canceled-bg: #ede9fe;  --status-canceled-text: #6d28d9;  --status-canceled-border: #c4b5fd;

  --radius-sm: 8px;
  --radius-md: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04), 0 2px 8px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.2);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #17191f;
  --color-surface: #232630;
  --color-text: #e8e9ec;
  --color-text-muted: #9aa0ac;
  --color-border: #333844;
  --color-input-border: #3f4552;
  --color-sidebar-bg: #0e1015;
  --color-sidebar-text: #f2f2f2;
  --color-primary: #3a6cf6;
  --color-primary-hover: #588bff;
  --color-primary-text: #ffffff;
  --color-danger: #f87171;
  --color-danger-bg: #3a1c1c;
  --color-danger-border: #6b2c2c;
  --hover-tint: rgba(255, 255, 255, 0.06);

  --status-draft-bg: #2c2f36;    --status-draft-text: #cfd3da;    --status-draft-border: #3f434c;
  --status-scheduled-bg: #1c2b4d; --status-scheduled-text: #93c5fd; --status-scheduled-border: #2f4a85;
  --status-posting-bg: #3d3211;   --status-posting-text: #fcd34d;   --status-posting-border: #5c4c17;
  --status-posted-bg: #133b21;    --status-posted-text: #86efac;    --status-posted-border: #1f5c34;
  --status-failed-bg: #3a1c1c;    --status-failed-text: #fca5a5;    --status-failed-border: #6b2c2c;
  --status-canceled-bg: #2c1f4d;  --status-canceled-text: #c4b5fd;  --status-canceled-border: #47337e;

  --shadow-sm: none;
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.6);
}

:root[data-theme="light"] {
  color-scheme: light;
}

[data-theme="dark"] section,
[data-theme="dark"] .auth-card {
  border: 1px solid var(--color-border);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
}

a {
  color: var(--color-primary);
}

[data-theme="dark"] a {
  color: #7fa2ff;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-sidebar-bg);
  color: var(--color-sidebar-text);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-4);
}

.sidebar-brand {
  font-size: 1.25rem;
  font-weight: 700;
}

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

.nav-link {
  display: block;
  background: transparent;
  color: var(--color-sidebar-text);
  border: none;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  opacity: 0.75;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  opacity: 1;
}

.nav-link.active {
  background: var(--color-primary);
  opacity: 1;
}

[data-theme="dark"] .nav-link.active {
  background: rgba(255, 255, 255, 0.12);
}

.sidebar-accounts {
  flex: 1;
  min-height: 60px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0 calc(var(--space-4) * -1);
  padding: 0 var(--space-4);
}

.sidebar-section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.5;
  padding: 0 var(--space-3);
  margin-bottom: var(--space-1);
}

.sidebar-account {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-sidebar-text);
  text-decoration: none;
  opacity: 0.75;
  font-size: 0.85rem;
}

.sidebar-account:hover {
  background: rgba(255, 255, 255, 0.08);
  opacity: 1;
}

.sidebar-account.active {
  background: var(--color-primary);
  opacity: 1;
}

[data-theme="dark"] .sidebar-account.active {
  background: rgba(255, 255, 255, 0.12);
}

.sidebar-account-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-accounts-empty {
  padding: 0 var(--space-3);
  margin: 0;
  font-size: 0.8rem;
  opacity: 0.6;
}

.account-avatar {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.account-avatar-img,
.account-avatar-placeholder {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.account-badge {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  color: #fff;
  font-size: 7px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-sidebar-bg);
  line-height: 1;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.sidebar-email {
  font-size: 0.8rem;
  opacity: 0.75;
  word-break: break-all;
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: transparent;
  color: var(--color-sidebar-text);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  font-size: 0.85rem;
  cursor: pointer;
  opacity: 0.85;
}

.theme-toggle-btn:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.08);
}

#logout-btn {
  background: transparent;
  color: var(--color-sidebar-text);
  border: 1px solid rgba(255, 255, 255, 0.2);
  opacity: 0.85;
}

#logout-btn:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.08);
}

.app-main {
  flex: 1;
  min-width: 0;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-width: 1000px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.page-header h1 {
  margin: 0;
  font-size: 1.4rem;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

section {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
}

.verify-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--status-posting-bg);
  color: var(--status-posting-text);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.attention-banner {
  display: flex;
  align-items: center;
  background: var(--status-failed-bg);
  color: var(--status-failed-text);
  border: 1px solid var(--status-failed-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  font-weight: 600;
}

.attention-banner[hidden] {
  display: none;
}

.status-filter {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.status-filter-label {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.status-filter-chip {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-full, 999px);
  padding: var(--space-1) var(--space-3);
  font-size: 0.85rem;
  cursor: pointer;
}

.status-filter-chip::before {
  content: '';
}

.status-filter-chip.active::before {
  content: '✓ ';
}

.status-filter-chip.active {
  background: var(--color-primary);
  color: var(--color-primary-text);
  border-color: var(--color-primary);
}

section h2 {
  margin: 0 0 var(--space-4);
  font-size: 1.1rem;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.connect-option {
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.connect-option:first-child {
  padding-top: 0;
}

.connect-option:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.connect-option h3 {
  margin: 0 0 var(--space-1);
  font-size: 0.95rem;
}

.connect-option .hint {
  margin-bottom: var(--space-3);
}

ul {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

li .content {
  flex: 1;
  min-width: 120px;
}

li .thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.thumb-group {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}

.thumb-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

li .when {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.empty,
.loading {
  color: var(--color-text-muted);
  font-style: italic;
  border-style: dashed;
}

.status {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.15rem var(--space-2);
  border-radius: 999px;
  text-transform: uppercase;
  white-space: nowrap;
}

.status-draft { background: var(--status-draft-bg); color: var(--status-draft-text); }
.status-scheduled { background: var(--status-scheduled-bg); color: var(--status-scheduled-text); }
.status-posting { background: var(--status-posting-bg); color: var(--status-posting-text); }
.status-posted { background: var(--status-posted-bg); color: var(--status-posted-text); }
.status-failed { background: var(--status-failed-bg); color: var(--status-failed-text); }
.status-canceled { background: var(--status-canceled-bg); color: var(--status-canceled-text); }

form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: flex-start;
}

form label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  gap: var(--space-1);
}

input, select, textarea, button {
  font: inherit;
  padding: var(--space-2);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

textarea {
  min-width: 260px;
  min-height: 2.5rem;
  resize: vertical;
}

button {
  background: var(--color-primary);
  color: var(--color-primary-text);
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

button:hover {
  background: var(--color-primary-hover);
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-link {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-primary-text);
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  font: inherit;
}

.btn-link:hover {
  background: var(--color-primary-hover);
}

.delete-btn {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.edit-btn {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-input-border);
}

.account-picker.locked .account-chip {
  pointer-events: none;
}

.account-picker.locked .account-chip:not(.selected) {
  display: none;
}

.account-picker.locked .account-chip.selected {
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-2);
  font-size: 0.9rem;
  border-width: 2px;
}

.account-picker.locked .account-chip.selected .account-avatar,
.account-picker.locked .account-chip.selected .account-avatar-img,
.account-picker.locked .account-chip.selected .account-avatar-placeholder {
  width: 30px;
  height: 30px;
}

.auth-card {
  max-width: 360px;
  margin: 4rem auto;
  background: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-card form {
  flex-direction: column;
  align-items: stretch;
}

.btn-link.btn-lg,
.btn-secondary.btn-lg {
  padding: var(--space-3) var(--space-5);
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: var(--radius-md);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  font: inherit;
}

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

.landing {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-5);
}

.landing-brand {
  font-size: 1.25rem;
  font-weight: 700;
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.landing-nav-links a:not(.btn-link) {
  color: var(--color-text);
  text-decoration: none;
}

.landing-nav-links a:not(.btn-link):hover {
  color: var(--color-primary);
}

.landing-hero {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-5) calc(var(--space-5) * 2);
  text-align: center;
}

.landing-hero h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
}

.landing-subhead {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.5;
  margin: 0 0 var(--space-5);
}

.landing-cta {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.landing-features {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  padding: 0 var(--space-5) calc(var(--space-5) * 2);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.landing-feature {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .landing-feature {
  border: 1px solid var(--color-border);
}

.landing-feature-icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: var(--space-2);
}

.landing-feature h3 {
  margin: 0 0 var(--space-2);
  font-size: 1rem;
}

.landing-feature p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.landing-footer {
  margin-top: auto;
  text-align: center;
  padding: var(--space-5);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
}

.api-docs {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-5) calc(var(--space-5) * 2);
}

.api-docs-hero {
  padding: var(--space-4) 0 calc(var(--space-5) * 1.5);
}

.api-docs-hero h1 {
  font-size: 2rem;
  margin: 0 0 var(--space-3);
}

.api-docs-section {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
}

.api-docs-section h2 {
  margin: 0 0 var(--space-3);
  font-size: 1.25rem;
}

.api-docs-section p {
  line-height: 1.6;
}

.api-docs code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
  font-size: 0.9em;
}

.api-docs pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  overflow-x: auto;
}

.api-docs pre code {
  background: none;
  border: none;
  padding: 0;
}

.api-docs-table-wrap {
  overflow-x: auto;
}

.api-docs-table {
  width: 100%;
  border-collapse: collapse;
}

.api-docs-table th,
.api-docs-table td {
  text-align: left;
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.api-docs-table th {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.85rem;
}

@media (max-width: 800px) {
  .landing-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .landing-hero h1 {
    font-size: 1.9rem;
  }

  .landing-features {
    grid-template-columns: 1fr;
  }
}

.error {
  color: var(--color-danger);
  min-height: 1.2rem;
  margin: 0;
}

.hint {
  margin-top: 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

#calendar {
  margin-top: var(--space-2);
  position: relative;
  min-height: 200px;
}

.fc .fc-daygrid-day-frame,
.fc .fc-timegrid-col-frame {
  cursor: pointer;
}

.fc .fc-daygrid-day:hover .fc-daygrid-day-frame {
  background: var(--hover-tint);
}

.fc .fc-timegrid-col:hover .fc-timegrid-col-frame {
  background: var(--hover-tint);
}

.fc .fc-event {
  cursor: pointer;
}

.fc .fc-daygrid-day.fc-day-past .fc-daygrid-day-frame {
  cursor: not-allowed;
  opacity: 0.55;
}

.fc .fc-daygrid-day.fc-day-past:hover .fc-daygrid-day-frame {
  background: transparent;
}

.fc .fc-daygrid-day.fc-day-past .fc-daygrid-day-number {
  color: var(--color-text-muted);
}

.fc-event.cal-status-draft { background-color: var(--status-draft-bg); border-color: var(--status-draft-border); color: var(--status-draft-text); }
.fc-event.cal-status-scheduled { background-color: var(--status-scheduled-bg); border-color: var(--status-scheduled-border); color: var(--status-scheduled-text); }
.fc-event.cal-status-posting { background-color: var(--status-posting-bg); border-color: var(--status-posting-border); color: var(--status-posting-text); }
.fc-event.cal-status-posted { background-color: var(--status-posted-bg); border-color: var(--status-posted-border); color: var(--status-posted-text); }
.fc-event.cal-status-failed { background-color: var(--status-failed-bg); border-color: var(--status-failed-border); color: var(--status-failed-text); }
.fc-event.cal-status-canceled { background-color: var(--status-canceled-bg); border-color: var(--status-canceled-border); color: var(--status-canceled-text); }

.cal-event-content {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow: hidden;
}

.cal-platform-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  color: #fff;
  font-size: 7px;
  font-weight: 700;
  line-height: 1;
}

.cal-event-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

dialog#post-dialog,
dialog#confirm-dialog {
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  width: min(420px, 90vw);
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-md);
  background: var(--color-surface);
  color: var(--color-text);
}

[data-theme="dark"] dialog#post-dialog,
[data-theme="dark"] dialog#confirm-dialog {
  border: 1px solid var(--color-border);
}

dialog#post-dialog::backdrop,
dialog#confirm-dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}

#confirm-dialog-message {
  margin: 0 0 var(--space-4);
  white-space: pre-line;
}

dialog#post-dialog h3 {
  margin: 0;
  font-size: 1.1rem;
}

dialog#post-dialog form {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-4);
}

dialog#post-dialog label {
  font-weight: 600;
  font-size: 0.85rem;
  gap: var(--space-2);
}

dialog#post-dialog textarea {
  min-width: 0;
  min-height: 5rem;
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

dialog#post-dialog textarea:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

dialog#post-dialog .composer-field {
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.label-optional,
dialog#post-dialog label .label-optional {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

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

#api-token-value {
  font-family: monospace;
  min-width: 320px;
  flex: 1;
}

.token-input-row button {
  flex-shrink: 0;
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.dialog-close {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.4rem;
  line-height: 1;
  padding: 0 var(--space-1);
  cursor: pointer;
}

.dialog-close:hover {
  background: transparent;
  color: var(--color-text);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.dialog-actions #post-dialog-delete {
  margin-right: auto;
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.dialog-actions button[type="button"] {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-input-border);
}

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

.composer-label {
  font-weight: 600;
  font-size: 0.85rem;
}

.account-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.account-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-1);
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.8rem;
  opacity: 0.55;
  filter: grayscale(70%);
  cursor: pointer;
  transition: opacity 0.15s ease, filter 0.15s ease, border-color 0.15s ease;
}

.account-chip:hover {
  opacity: 0.85;
}

.account-chip.selected {
  opacity: 1;
  filter: none;
  border-color: var(--color-primary);
}

.account-chip .account-avatar {
  width: 22px;
  height: 22px;
}

.account-chip .account-avatar-img,
.account-chip .account-avatar-placeholder {
  width: 22px;
  height: 22px;
}

.composer-meta {
  display: flex;
  justify-content: flex-end;
}

#char-count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

#char-count.char-count-warning {
  color: var(--status-posting-text);
}

#char-count.char-count-over {
  color: var(--color-danger);
  font-weight: 600;
}

.media-preview-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.media-empty {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

.media-preview-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  width: 100px;
}

.media-preview-thumb {
  position: relative;
  width: 100px;
  height: 100px;
}

.media-preview-thumb img,
.media-preview-thumb video {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
  border: 1px solid var(--color-border);
}

.media-alt-input {
  font-size: 0.7rem;
  padding: var(--space-1);
  width: 100%;
}

.media-remove {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-danger);
  color: #fff;
  border: 2px solid var(--color-surface);
  font-size: 0.9rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px dashed var(--color-input-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  width: fit-content;
}

.media-upload-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}

.schedule-toggle {
  display: flex;
  gap: var(--space-2);
}

.schedule-option {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-input-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
}

.schedule-option.active {
  background: var(--color-primary);
  color: var(--color-primary-text);
  border-color: var(--color-primary);
}

#scheduled-for-input {
  margin-top: var(--space-2);
  width: 100%;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#scheduled-for-input:hover:not(:disabled) {
  border-color: var(--color-primary);
}

#scheduled-for-input:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 20%, transparent);
}

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

#scheduled-for-input::-webkit-calendar-picker-indicator {
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 3px;
}

#scheduled-for-input::-webkit-calendar-picker-indicator:hover {
  background: var(--hover-tint);
}

[data-theme="dark"] #scheduled-for-input::-webkit-calendar-picker-indicator {
  filter: invert(1);
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: -0.15em;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
}

/* Toasts */
#toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: min(360px, calc(100vw - 2rem));
}

.toast {
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  animation: toast-in 0.15s ease-out;
}

.toast-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.toast-success {
  background: var(--status-posted-bg);
  color: var(--status-posted-text);
  border: 1px solid var(--status-posted-border);
}

.toast-warning {
  background: var(--status-posting-bg);
  color: var(--status-posting-text);
  border: 1px solid var(--status-posting-border);
}

a.toast {
  display: block;
  text-decoration: underline;
  cursor: pointer;
}

.danger-zone {
  border: 1px solid var(--color-danger-border);
}

.danger-zone h2 {
  color: var(--color-danger);
}

.settings-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.settings-section h2 {
  margin-bottom: 0;
}

.settings-section p {
  margin: 0;
}

.settings-section > button {
  align-self: flex-start;
}

.token-actions {
  display: flex;
  gap: var(--space-2);
  align-self: flex-start;
}

.account-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
}

.account-info > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.account-info > div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.account-info dt {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.account-info dd {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.settings-form {
  flex-direction: column;
  align-items: stretch;
  max-width: 320px;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 640px) {
  .app-shell {
    flex-direction: column;
  }

  .sidebar {
    width: auto;
    flex-direction: row;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    gap: var(--space-4);
  }

  .sidebar-nav {
    flex-direction: row;
    flex: 1;
  }

  .sidebar-accounts {
    display: none;
  }

  .sidebar-footer {
    flex-direction: row;
    align-items: center;
    border-top: none;
    padding-top: 0;
  }

  .sidebar-email {
    display: none;
  }

  .app-main {
    padding: var(--space-4);
    gap: var(--space-4);
  }

  main {
    padding: var(--space-4);
    gap: var(--space-4);
  }

  section {
    padding: var(--space-4);
  }

  form {
    flex-direction: column;
    align-items: stretch;
  }

  form input, form select, form textarea, form button {
    width: 100%;
  }

  li {
    align-items: flex-start;
  }

  li .content {
    order: 1;
    width: 100%;
  }

  .dialog-actions {
    flex-direction: column-reverse;
  }

  .dialog-actions button {
    width: 100%;
  }

  #toast-container {
    left: var(--space-4);
    right: var(--space-4);
    max-width: none;
  }
}