:root {
  --bg: #0b0b0f;
  --surface: #111118;
  --surface-2: #181820;
  --surface-3: #1f1f28;
  --border: #282830;
  --border-2: #34343d;
  --text: #f0f0f5;
  --text-2: #a0a0b0;
  --text-3: #6e6e7c;
  --accent: #5e6ad2;
  --accent-hover: #6872e3;
  --accent-soft: rgba(94, 106, 210, 0.12);
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 14px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.32);
  --font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  display: flex;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Guest layout */
.guest {
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* Sidebar */
.sidebar {
  width: 230px;
  min-width: 230px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
}

.sidebar-head {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.12s, color 0.12s;
}

.nav-item:hover {
  background: var(--surface-2);
  color: var(--text);
}

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

.nav-icon {
  width: 18px;
  text-align: center;
  font-size: 13px;
}

.nav-section {
  margin: 16px 10px 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-3);
}

.sidebar-foot {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.workspace-pill {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-name {
  font-size: 12px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sign-out {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 4px;
}

.sign-out:hover {
  color: var(--text);
}

/* App area */
.app {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
}

.topbar {
  height: 52px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 12px;
  background: var(--bg);
  flex-shrink: 0;
}

.cmd-bar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  min-width: 220px;
}

.cmd-bar:hover {
  border-color: var(--border-2);
  color: var(--text);
}

.cmd-icon {
  color: var(--text-3);
  font-size: 12px;
}

.cmd-k {
  margin-left: auto;
  padding: 1px 5px;
  background: var(--surface-3);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text-3);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: background 0.12s, border-color 0.12s;
}

.btn:hover {
  opacity: 0.92;
}

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

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

main {
  flex: 1;
  overflow: auto;
  padding: 0;
}

/* Board */
.board {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.board-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.board-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.board-sub {
  color: var(--text-3);
  font-size: 13px;
  margin-top: 2px;
}

.board-columns {
  display: flex;
  flex: 1;
  gap: 12px;
  padding: 16px;
  overflow-x: auto;
  min-height: 0;
}

.column {
  width: 300px;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-height: 100%;
}

.column-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

.column-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.column-count {
  font-size: 11px;
  color: var(--text-3);
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 999px;
}

.column-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.column-body:empty::before {
  content: "No issues";
  color: var(--text-3);
  font-size: 12px;
  text-align: center;
  padding: 24px 0;
}

/* Cards */
.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, transform 0.08s;
}

.card:hover {
  background: var(--surface-3);
  border-color: var(--border-2);
}

.card:active {
  transform: translateY(1px);
}

.card-id {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 4px;
}

.card-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 10px;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.label-pill {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.card-assignee {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--text-2);
  flex-shrink: 0;
}

/* Empty + forms */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--text-2);
  gap: 12px;
}

.empty-state h2 {
  margin: 0;
  font-size: 18px;
  color: var(--text);
}

.empty-state p {
  margin: 0;
  color: var(--text-3);
  max-width: 320px;
}

.workspace-create {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 360px;
  margin: 0 auto;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.workspace-create label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.workspace-create input {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.workspace-create input:focus {
  border-color: var(--accent);
}

/* Guest hero */
.hero {
  text-align: center;
  max-width: 420px;
}

.hero h1 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.hero p {
  color: var(--text-2);
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.6;
}

.hero .button {
  padding: 10px 18px;
  font-size: 14px;
}

.hero .meta {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 18px;
}