/*
 * Team Inbox
 * Functional task tool. Native CSS, system fonts, no external resources.
 * One accent (teal), neutral grays, one radius scale (6px for controls, 8px for panels).
 */

:root {
  color-scheme: light dark;
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-muted: #eef1f3;
  --text: #1d2428;
  --text-muted: #56626a;
  --border: #d5dbe0;
  --accent: #14708a;
  --accent-text: #ffffff;
  --accent-soft: #dcecf1;
  --focus: #0b5c73;
  --status-todo: #56626a;
  --status-progress: #14708a;
  --status-blocked: #9a3412;
  --status-done: #2f6b3a;
  --radius-control: 6px;
  --radius-panel: 8px;
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --header-h: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14191c;
    --surface: #1c2327;
    --surface-muted: #242c31;
    --text: #e6ecef;
    --text-muted: #9fadb6;
    --border: #3a464e;
    --accent: #5fb8cf;
    --accent-text: #0c1417;
    --accent-soft: #1f3b44;
    --focus: #9ad8e8;
    --status-todo: #9fadb6;
    --status-progress: #5fb8cf;
    --status-blocked: #f0a06b;
    --status-done: #7fc38c;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100dvh;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--surface);
  color: var(--text);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  z-index: 10;
}

.skip-link:focus {
  top: 12px;
}

/* Header */

.app-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--header-h);
  padding: 10px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  margin: 0;
}

.header-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
  white-space: nowrap;
}

/* Layout */

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 48px;
}

/* Toolbar */

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 200px;
  gap: 12px;
  align-items: end;
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.field-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.field-help {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

input[type="search"],
select {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
}

input[type="search"]::placeholder {
  color: var(--text-muted);
  opacity: 1;
}

.results-count {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Task list */

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  overflow: hidden;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.task-list li + li {
  border-top: 1px solid var(--border);
}

.task-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
}

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

.task-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.status {
  font-weight: 600;
  color: var(--status-todo);
}

.status[data-status="in-progress"] {
  color: var(--status-progress);
}

.status[data-status="blocked"] {
  color: var(--status-blocked);
}

.status[data-status="done"] {
  color: var(--status-done);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 16px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  cursor: pointer;
  white-space: nowrap;
}

.button:hover {
  background: var(--surface-muted);
}

.button:active {
  transform: scale(0.98);
}

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

.button-primary:hover {
  filter: brightness(1.08);
  background: var(--accent);
}

/* Empty state */

.empty-state {
  padding: 32px 24px;
  text-align: center;
}

.empty-state h2 {
  margin: 0 0 8px;
  font-size: 1.125rem;
}

.empty-state p {
  margin: 0 0 16px;
  color: var(--text-muted);
}

/* Detail view */

.detail {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: var(--bg);
  overflow-y: auto;
  padding: 0;
}

.detail[hidden] {
  display: none;
}

.detail-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 24px 48px;
}

.detail-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.detail-id {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.detail-title {
  margin: 0 0 16px;
  font-size: 1.5rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.detail-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  margin: 0 0 24px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
}

.detail-facts dt {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.detail-facts dd {
  margin: 2px 0 0;
  font-weight: 600;
}

.status-control {
  display: grid;
  gap: 6px;
  margin-bottom: 24px;
  max-width: 280px;
}

.feedback {
  min-height: 1.5em;
  margin: 0;
  font-size: 0.875rem;
  color: var(--status-done);
}

.detail-body {
  white-space: pre-line;
  max-width: 65ch;
  font-size: 1rem;
  line-height: 1.6;
}

.detail-body p {
  margin: 0 0 16px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
}

.tag {
  font-size: 0.8125rem;
  padding: 2px 8px;
  background: var(--accent-soft);
  color: var(--text);
  border-radius: var(--radius-control);
}

/* Responsive */

@media (max-width: 767px) {
  .app-header {
    padding: 10px 16px;
  }

  .header-meta {
    display: none;
  }

  .workspace {
    padding: 12px 16px 32px;
  }

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

  .task-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .task-row .button {
    width: 100%;
  }

  .detail-inner {
    padding: 12px 16px 32px;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}