:root {
  --bg: #0a0f1c;
  --panel: #11192d;
  --panel-2: #15213c;
  --panel-3: #0f1629;
  --border: #253556;
  --border-strong: #355184;
  --text: #ecf2ff;
  --muted: #b3c1e2;
  --accent: #84b4ff;
  --accent-2: #61e3b1;
  --danger: #ff8d8d;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 18px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #13203c, #0a0f1c 28%);
  color: var(--text);
}
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.muted, .small, .section-subtitle { color: var(--muted); }
.small { font-size: 12px; }

.center-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.center-card,
.panel-card,
.hero-card,
.nav-section,
.messages,
.modal-card,
.session-item,
.project-item,
.list-item,
.kanban-col {
  background: rgba(17, 25, 45, 0.94);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.login-card {
  width: min(100%, 420px);
  padding: 28px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: inline-grid;
  place-items: center;
  border-radius: 14px;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--accent), #b7ceff);
  color: #07111f;
  font-weight: 800;
}

.stack-form,
.stack-list {
  display: grid;
  gap: 12px;
}

.stack-form label {
  display: grid;
  gap: 6px;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: #09111f;
  color: var(--text);
  padding: 12px 14px;
}

textarea {
  resize: none;
  min-height: 110px;
}

.btn,
.icon-btn,
.mini-btn,
.mobile-nav-btn,
.inspector-tab {
  border: 1px solid transparent;
  border-radius: 14px;
  background: #18233f;
  color: var(--text);
  transition: .18s ease;
}

.btn:hover,
.icon-btn:hover,
.mini-btn:hover,
.mobile-nav-btn:hover,
.inspector-tab:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.btn { padding: 10px 14px; }
.btn-lg { padding: 12px 16px; }
.btn-primary { background: linear-gradient(135deg, var(--accent), #9ec0ff); color: #08101c; font-weight: 700; }
.btn-secondary { background: #18233f; }
.btn-ghost { background: transparent; border-color: var(--border); }
.icon-btn,
.mini-btn {
  min-width: 40px;
  min-height: 40px;
  padding: 0 12px;
}
.mini-btn { min-width: 34px; min-height: 34px; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto 1fr;
}

.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(53, 81, 132, 0.45);
  background: rgba(10, 15, 28, 0.88);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 40;
}

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

.topbar-center {
  min-width: 0;
}

.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 11px;
}

.project-pill {
  font-weight: 700;
}

.menu-wrap { position: relative; }
.menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  padding: 8px;
  background: rgba(17, 25, 45, 0.98);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 4px;
  z-index: 80;
}
.menu button {
  text-align: left;
  background: transparent;
  color: var(--text);
  border: 0;
  border-radius: 12px;
  padding: 10px 12px;
}
.menu button:hover { background: #1b2948; }

.mobile-nav {
  display: none;
  gap: 8px;
  padding: 10px 16px 0;
  overflow-x: auto;
}
.mobile-nav-btn {
  padding: 10px 14px;
  white-space: nowrap;
}
.mobile-nav-btn.active,
.inspector-tab.active {
  background: #243860;
  border-color: var(--border-strong);
}

.layout {
  min-height: 0;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 380px;
  gap: 16px;
  padding: 16px;
}

.nav-drawer,
.inspector,
.chat-view {
  min-height: 0;
}

.nav-drawer,
.inspector {
  display: grid;
  gap: 16px;
  align-content: start;
}

.nav-section,
.panel-card {
  padding: 14px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.section-head.compact { margin-bottom: 14px; }
.section-label {
  font-size: 14px;
  font-weight: 700;
}
.section-subtitle {
  font-size: 12px;
  line-height: 1.45;
}

.project-item,
.session-item,
.list-item {
  padding: 12px;
  margin: 0;
  border-radius: 16px;
  background: rgba(21, 33, 60, 0.9);
  border: 1px solid rgba(53, 81, 132, 0.35);
}
.project-item,
.session-item {
  cursor: pointer;
}
.project-item:hover,
.session-item:hover,
.list-item:hover {
  border-color: var(--border-strong);
  background: rgba(28, 43, 78, 0.98);
}
.project-item.active,
.session-item.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(132, 180, 255, 0.35);
}

.chat-view {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 16px;
}

.hero-card {
  padding: 16px 18px;
}
.hero-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.hero-title {
  font-size: 18px;
  font-weight: 800;
}
.hero-subtitle {
  margin-top: 6px;
}
.hero-status {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: #17233f;
  border: 1px solid rgba(53, 81, 132, 0.5);
  color: var(--muted);
  font-size: 12px;
}
.chip.running { color: #ffd79a; border-color: #8a6332; }
.chip.idle { color: #9ee3c9; border-color: #2e6c58; }
.chip.error { color: #ffb0b0; border-color: #7b3e3e; }

.messages {
  min-height: 0;
  overflow: auto;
  padding: 16px;
  display: grid;
  gap: 12px;
}
.empty-state {
  padding: 16px;
  border-radius: 16px;
  background: rgba(15, 22, 41, 0.8);
  border: 1px dashed rgba(53, 81, 132, 0.5);
  color: var(--muted);
}
.message {
  max-width: min(88%, 820px);
  padding: 14px;
  border-radius: 18px;
  white-space: pre-wrap;
  line-height: 1.5;
  border: 1px solid transparent;
}
.message.user {
  margin-left: auto;
  background: linear-gradient(135deg, #1e3158, #223d72);
  border-color: #3f5f9f;
}
.message.assistant {
  background: linear-gradient(135deg, #143628, #194334);
  border-color: #2d6953;
}
.message strong {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
  opacity: .7;
}

.composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}
.composer-input-wrap {
  display: block;
}
.composer textarea {
  min-height: 88px;
  max-height: 220px;
}
.composer-send {
  min-height: 72px;
  min-width: 110px;
}

.inspector-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.inspector-tab {
  padding: 10px 12px;
}
.panel-view { display: none; }
.panel-view.active { display: grid; gap: 16px; }

.heartbeat-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.kanban {
  display: grid;
  gap: 12px;
}
.kanban-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.kanban-col {
  padding: 12px;
  min-height: 120px;
}
.kanban-col-title {
  font-weight: 700;
  margin-bottom: 10px;
}
.kanban-card {
  background: rgba(21, 33, 60, 0.9);
  border: 1px solid rgba(53, 81, 132, 0.35);
  border-radius: 14px;
  padding: 10px;
  margin-top: 8px;
}

.admin-output {
  min-height: 120px;
  margin: 0;
  overflow: auto;
  border-radius: 14px;
  background: #09111f;
  border: 1px solid var(--border);
  padding: 12px;
  color: #b9c9ef;
}

.modal-backdrop,
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 16, 0.7);
  backdrop-filter: blur(4px);
  z-index: 70;
}

.modal-backdrop {
  display: grid;
  place-items: center;
  padding: 18px;
}

.modal-card {
  width: min(100%, 540px);
  padding: 18px;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.drawer-backdrop { z-index: 49; }

@media (max-width: 1180px) {
  .layout {
    grid-template-columns: 280px minmax(0, 1fr);
  }
  .inspector {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .topbar {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "left actions"
      "meta meta";
  }
  .topbar-left { grid-area: left; }
  .topbar-actions { grid-area: actions; }
  .topbar-center { grid-area: meta; }
  .mobile-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .layout {
    grid-template-columns: 1fr;
    padding: 12px;
  }
  .nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(88vw, 340px);
    padding: 18px 14px 18px 18px;
    background: rgba(10, 15, 28, 0.98);
    overflow: auto;
    z-index: 60;
    transform: translateX(-105%);
    transition: transform .22s ease;
  }
  .nav-drawer.open { transform: translateX(0); }
  .chat-view,
  .inspector { display: none; }
  body.mobile-view-chat .chat-view,
  body.mobile-view-overview .inspector,
  body.mobile-view-automation .inspector,
  body.mobile-view-board .inspector,
  body.mobile-view-admin .inspector {
    display: grid;
  }
  body.mobile-view-nav .nav-drawer {
    transform: translateX(0);
  }
  body.mobile-view-overview #panel-overview,
  body.mobile-view-automation #panel-automation,
  body.mobile-view-board #panel-board,
  body.mobile-view-admin #panel-admin {
    display: grid;
  }
  body.mobile-view-overview .inspector-tabs,
  body.mobile-view-automation .inspector-tabs,
  body.mobile-view-board .inspector-tabs,
  body.mobile-view-admin .inspector-tabs {
    display: none;
  }
  .composer {
    grid-template-columns: 1fr;
  }
  .composer-send {
    min-height: 52px;
    width: 100%;
  }
  .message { max-width: 100%; }
}

@media (max-width: 560px) {
  .topbar {
    padding: 12px;
  }
  .topbar-actions {
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .topbar-actions .btn { padding: 9px 11px; }
  .project-pill { font-size: 14px; }
  .topbar-center { font-size: 12px; }
  .menu {
    left: 0;
    right: auto;
    min-width: 200px;
  }
}