:root {
  --bg: #0b0f14;
  --bg-elev: #121820;
  --bg-card: #161d27;
  --line: #243041;
  --text: #edf2f7;
  --muted: #8a9bb0;
  --accent: #2dd4a8;
  --accent-dim: #1a8f72;
  --cdp: #5eb1ff;
  --acp: #a3e635;
  --warn: #eab308;
  --bad: #f87171;
  --radius: 14px;
  --font: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

body {
  background:
    radial-gradient(900px 480px at 0% -10%, #14352c 0%, transparent 55%),
    radial-gradient(700px 400px at 100% 0%, #1a2740 0%, transparent 50%),
    var(--bg);
}

.mono {
  font-family: var(--mono);
}
.muted {
  color: var(--muted);
}
.hidden {
  display: none !important;
}

.app {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: 100dvh;
}

.rail {
  border-right: 1px solid var(--line);
  padding: calc(1rem + var(--safe-t)) 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: color-mix(in srgb, var(--bg-elev) 80%, transparent);
}

.rail-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.4rem;
}

.mark {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--accent), #0ea5e9);
  box-shadow: 0 0 20px color-mix(in srgb, var(--accent) 35%, transparent);
}

.rail-title {
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-item {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  font: inherit;
  font-weight: 550;
  cursor: pointer;
}

.nav-item.active,
.nav-item:hover {
  background: var(--bg-card);
  color: var(--text);
}

.rail-foot {
  margin-top: auto;
  font-size: 0.68rem;
  word-break: break-all;
  padding: 0.4rem;
}

.stage {
  padding: calc(1.1rem + var(--safe-t)) 1.25rem calc(1.5rem + var(--safe-b));
  max-width: 960px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.1rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.top-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.seg {
  display: flex;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.seg-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 550;
  cursor: pointer;
}

.seg-btn.active {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: 0 1px 0 color-mix(in srgb, #000 35%, transparent);
}

.icon-btn {
  appearance: none;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-bottom: 0.9rem;
}

.toolbar input[type="search"] {
  flex: 1;
  min-width: 160px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
  font: inherit;
  outline: none;
}

.toolbar input[type="search"]:focus {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
}

.check {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  font-size: 0.82rem;
}

.status {
  font-size: 0.72rem;
  margin-left: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1.05rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
  min-height: 118px;
  width: 100%;
  text-align: left;
  font: inherit;
  cursor: pointer;
  appearance: none;
  overflow: hidden;
}

.card:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  transform: translateY(-1px);
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 0.65rem;
  align-items: flex-start;
  min-width: 0;
}

.card-title {
  font-weight: 650;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.pill {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.18rem 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  color: var(--muted);
}

.pill.cdp {
  color: var(--cdp);
  border-color: color-mix(in srgb, var(--cdp) 35%, var(--line));
}
.pill.acp {
  color: var(--acp);
  border-color: color-mix(in srgb, var(--acp) 35%, var(--line));
}

.live {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

.dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--muted);
}

.dot.idle,
.dot.running {
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
  animation: pulse 2.2s ease infinite;
}
.dot.starting {
  background: var(--warn);
}
.dot.dead {
  background: var(--bad);
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 35%, transparent);
  }
  50% {
    box-shadow: 0 0 0 5px transparent;
  }
}

.card-meta {
  font-size: 0.72rem;
  color: var(--muted);
  font-family: var(--mono);
  line-height: 1.45;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-text {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  min-width: 0;
}

.back-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 10px;
  font: inherit;
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.detail {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.detail-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}

.detail-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.detail-fields {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 0.45rem 0.75rem;
  margin: 0;
  font-size: 0.85rem;
}

.detail-fields dt {
  color: var(--muted);
}

.detail-fields dd {
  margin: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  background: var(--accent);
  color: #04140f;
  font-weight: 650;
  text-decoration: none;
  border: 0;
  cursor: pointer;
}

.detail-note {
  font-size: 0.88rem;
  line-height: 1.55;
}

.session-box {
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.session-log {
  min-height: 140px;
  max-height: 42vh;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.9rem;
}

.session-user {
  align-self: flex-end;
  max-width: 90%;
  background: color-mix(in srgb, var(--accent) 22%, var(--bg-elev));
  border: 1px solid var(--line);
  border-radius: 12px 12px 4px 12px;
  padding: 0.55rem 0.75rem;
}

.session-sys {
  align-self: flex-start;
  max-width: 95%;
  color: var(--muted);
  font-size: 0.82rem;
}

.session-form {
  display: flex;
  gap: 0.45rem;
}

.session-form input {
  flex: 1;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  font: inherit;
}

.session-form button {
  appearance: none;
  border: 0;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 0 0.9rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.empty {
  grid-column: 1 / -1;
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  line-height: 1.55;
}

.about {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  line-height: 1.55;
  color: var(--muted);
}

.about strong {
  color: var(--text);
}

.about code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--accent);
}

.about ul {
  padding-left: 1.1rem;
}

.tabbar {
  display: none;
}

@media (max-width: 760px) {
  .app {
    grid-template-columns: 1fr;
  }

  .rail {
    display: none;
  }

  .stage {
    padding-bottom: calc(4.5rem + var(--safe-b));
  }

  .topbar h1 {
    font-size: 1.35rem;
  }

  .seg {
    overflow-x: auto;
    max-width: calc(100vw - 5rem);
  }

  .tabbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.4rem 0.6rem calc(0.4rem + var(--safe-b));
    background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(10px);
    z-index: 20;
  }

  .tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    padding: 0.65rem;
    border-radius: 10px;
    font: inherit;
    font-weight: 600;
  }

  .tab.active {
    color: var(--text);
    background: var(--bg-card);
  }
}