:root {
  /* Global Tokens - Light Mode (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-tertiary: #ebedef;
  --text-primary: #1f2328;
  --text-secondary: #656d76;
  --text-muted: #8c959f;
  --accent: #0969da;
  --accent-muted: rgba(9, 105, 218, 0.1);
  --border: #d0d7de;
  --border-muted: #d8dee4;
  --success: #1a7f37;
  --success-bg: #dafbe1;
  --warning: #9a6700;
  --warning-bg: #fff8c5;
  --danger: #d1242f;
  --danger-bg: #ffebe9;
  --sidebar-bg: #f6f8fa;
  --sidebar-text: #1f2328;
  --sidebar-active: #ffffff;
  
  /* Layout */
  --sidebar-width: 240px;
  --header-height: 48px;
  --radius: 6px;
  --font-mono: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
}

[data-theme="dark"] {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #e6edf3;
  --text-secondary: #7d8590;
  --text-muted: #484f58;
  --accent: #2f81f7;
  --accent-muted: rgba(47, 129, 247, 0.15);
  --border: #30363d;
  --border-muted: #21262d;
  --success: #3fb950;
  --success-bg: rgba(46, 160, 67, 0.15);
  --warning: #d29922;
  --warning-bg: rgba(187, 128, 9, 0.15);
  --danger: #f85149;
  --danger-bg: rgba(248, 81, 73, 0.15);
  --sidebar-bg: #010409;
  --sidebar-text: #7d8590;
  --sidebar-active: #161b22;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #7d8590;
    --text-muted: #484f58;
    --accent: #2f81f7;
    --accent-muted: rgba(47, 129, 247, 0.15);
    --border: #30363d;
    --border-muted: #21262d;
    --success: #3fb950;
    --success-bg: rgba(46, 160, 67, 0.15);
    --warning: #d29922;
    --warning-bg: rgba(187, 128, 9, 0.15);
    --danger: #f85149;
    --danger-bg: rgba(248, 81, 73, 0.15);
    --sidebar-bg: #010409;
    --sidebar-text: #7d8590;
    --sidebar-active: #161b22;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  display: flex;
  min-height: 100vh;
  font-size: 14px;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 2000;
  left: 0;
  padding: 12px 0;
}

.sidebar-header { padding: 0 16px 16px; border-bottom: 1px solid var(--border-muted); margin-bottom: 8px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; padding: 0 8px; }

.nav-button {
  background: none; border: none; color: var(--sidebar-text); padding: 6px 12px; cursor: pointer;
  font-weight: 500; font-size: 14px; text-align: left; transition: all 0.1s;
  display: flex; align-items: center; gap: 8px; width: 100%;
  border-radius: var(--radius);
}

.nav-button span { font-size: 16px; width: 20px; text-align: center; }

.nav-button:hover { background: var(--bg-tertiary); color: var(--text-primary); }

.nav-button.is-active {
  background: var(--sidebar-active);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.1);
  border: 1px solid var(--border);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none; background: var(--accent); border: none; color: white;
  width: 36px; height: 36px; border-radius: var(--radius); cursor: pointer;
  position: fixed; top: 8px; left: 8px; z-index: 3000;
  align-items: center; justify-content: center; font-size: 1.2rem;
}

@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.2s; }
  .sidebar.is-open { transform: translateX(0); box-shadow: 0 0 20px rgba(0,0,0,0.2); }
  .mobile-menu-btn { display: flex; }
  .main-content { margin-left: 0 !important; padding: 60px 16px 24px !important; }
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width); flex: 1; padding: 32px 48px; max-width: 1200px;
}

.section { display: none; }
.section.is-active { display: block; }

.page-header { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.eyebrow { color: var(--text-secondary); font-weight: 500; font-size: 12px; margin-bottom: 4px; }
h1 { font-size: 24px; font-weight: 600; margin-bottom: 4px; color: var(--text-primary); }
.lede { color: var(--text-secondary); font-size: 14px; }

/* Tables & Lists */
.cards-grid { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }

/* Agent Row (replaces card) */
.agent-card {
  background: var(--bg-primary); display: flex; flex-direction: column;
}

.card-summary {
  display: flex; align-items: center; gap: 12px; padding: 10px 16px; cursor: pointer;
}
.card-summary:hover { background: var(--bg-secondary); }

.agent-avatar {
  width: 32px; height: 32px; border-radius: 50%; background: var(--bg-tertiary);
  display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0;
  border: 1px solid var(--border);
}
.card-summary-info { flex: 1; display: flex; align-items: center; gap: 12px; }
.card-summary-info h3 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin: 0; }
.role-title { color: var(--text-secondary); font-size: 12px; background: var(--bg-secondary); padding: 2px 8px; border-radius: 12px; border: 1px solid var(--border); }

.card-meta { display: flex; align-items: center; gap: 12px; }
.task-count {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  color: var(--text-secondary); background: var(--bg-tertiary);
  padding: 1px 6px; border-radius: 4px;
}

/* Heartbeat dot */
.hb-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.hb-working { background: var(--success); box-shadow: 0 0 0 2px var(--success-bg); }
.hb-idle    { background: var(--accent); }
.hb-offline { background: var(--text-muted); }
.hb-dot-wrap { position: relative; display: inline-flex; align-items: center; flex-shrink: 0; }
.hb-tooltip { display: none; position: absolute; left: 14px; top: 50%; transform: translateY(-50%); background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 6px 10px; font-size: 11px; line-height: 1.6; white-space: nowrap; z-index: 200; box-shadow: 0 4px 12px rgba(0,0,0,0.15); pointer-events: none; }
.hb-dot-wrap:hover .hb-tooltip { display: block; }

/* Details */
.card-details { display: none; padding: 12px 16px 16px 60px; background: var(--bg-secondary); border-top: 1px solid var(--border-muted); }
.agent-card.expanded .card-details { display: block; }

.runtime-badge { font-family: var(--font-mono); font-size: 11px; color: var(--text-secondary); margin-bottom: 8px; }
.role-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 11px; padding: 2px 8px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary); }

/* Buttons */
.btn-submit {
  background: var(--accent); color: white; border: 1px solid rgba(27,31,36,0.15);
  padding: 5px 12px; border-radius: var(--radius); font-weight: 600; font-size: 14px;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.1s;
}
.btn-submit:hover { background: #0255b3; }

.btn-link {
  color: var(--accent); text-decoration: none; font-weight: 500; font-size: 12px;
  padding: 3px 10px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-primary); transition: all 0.1s;
}
.btn-link:hover { background: var(--bg-secondary); border-color: var(--text-muted); }

/* Kanban Board */
.pipeline-board { display: flex; gap: 16px; }
.pipeline-board > .card {
  flex: 1; min-width: 300px; background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius); display: flex; flex-direction: column;
}
.card-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.card-title { font-size: 14px; font-weight: 600; }

.activity-list { padding: 8px; display: flex; flex-direction: column; gap: 8px; }
.activity-item {
  background: var(--bg-primary); padding: 12px; border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.activity-item strong { font-size: 13px; font-weight: 600; display: block; margin-bottom: 4px; }

/* Theme Toggle Button */
.theme-toggle {
  margin-top: auto; padding: 16px; border-top: 1px solid var(--border-muted);
  display: flex; align-items: center; gap: 12px;
}
.theme-btn {
  background: none; border: 1px solid var(--border); color: var(--text-primary);
  width: 32px; height: 32px; border-radius: var(--radius); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.theme-btn:hover { background: var(--bg-tertiary); }

/* Responsive adjustments */
@media (max-width: 900px) {
  .pipeline-board { flex-direction: column; }
}

/* Standup Logs */
.daily-buttons { display: flex; gap: 4px; margin-bottom: 16px; }
.daily-button {
  background: var(--bg-secondary); border: 1px solid var(--border); color: var(--text-primary);
  padding: 4px 12px; border-radius: var(--radius); cursor: pointer; font-size: 13px;
}
.daily-button.is-active { background: var(--accent); color: white; border-color: var(--accent); }

.daily-view, .markdown-view {
  background: var(--bg-primary); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; font-size: 14px;
}

/* Modals */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
}
.modal-content {
  background: var(--bg-primary); padding: 24px; border-radius: var(--radius); width: 100%; max-width: 500px;
  border: 1px solid var(--border); box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  overflow-y: auto; max-height: 90vh;
}

/* Form Styling */
.standup-form { display: flex; flex-direction: column; gap: 16px; background: none; border: none; padding: 0; margin: 0; }
.standup-form label { display: flex; flex-direction: column; gap: 4px; }
.standup-form label span { font-size: 12px; font-weight: 600; color: var(--text-secondary); }
.standup-form input, .standup-form textarea, .standup-form select {
  background: var(--bg-secondary); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 12px; color: var(--text-primary); font-size: 14px;
}
.standup-form input:focus, .standup-form textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

/* Inbox */
.inbox-card { background: var(--bg-primary); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; margin-bottom: 8px; }
.inbox-card.inbox-unread { border-left: 3px solid var(--accent); }

/* Monospace Helpers */
.mono { font-family: var(--font-mono); }