:root {
  color-scheme: light;
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --ink: #0f172a;
  --muted: #475569;
  --accent: #0f766e;
  --danger: #b91c1c;
  --line: #dbe3ee;
  --body-gradient-start: #d8e7ff;
  --session-active: #ecfeff;
  --error-bg: #fee2e2;
  --pre-bg: #f8fafc;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #0b1220;
    --surface: #121a29;
    --surface-alt: #0f1726;
    --ink: #e6edf7;
    --muted: #9cb0cb;
    --accent: #0f766e;
    --danger: #ef4444;
    --line: #25334a;
    --body-gradient-start: #152238;
    --session-active: #123b45;
    --error-bg: #3d1015;
    --pre-bg: #0d1626;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --ink: #0f172a;
  --muted: #475569;
  --accent: #0f766e;
  --danger: #b91c1c;
  --line: #dbe3ee;
  --body-gradient-start: #d8e7ff;
  --session-active: #ecfeff;
  --error-bg: #fee2e2;
  --pre-bg: #f8fafc;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --surface: #121a29;
  --surface-alt: #0f1726;
  --ink: #e6edf7;
  --muted: #9cb0cb;
  --accent: #0f766e;
  --danger: #ef4444;
  --line: #25334a;
  --body-gradient-start: #152238;
  --session-active: #123b45;
  --error-bg: #3d1015;
  --pre-bg: #0d1626;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top left, var(--body-gradient-start) 0%, var(--bg) 45%);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

#app {
  width: 100%;
  height: 100%;
}

.hidden {
  display: none !important;
}

.card {
  width: min(92vw, 440px);
  margin: 9vh auto;
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: 0 14px 48px rgba(15, 23, 42, 0.12);
  padding: 1.25rem;
}

h1 {
  margin: 0 0 0.35rem;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
}

.muted {
  color: var(--muted);
  margin-top: 0;
}

form {
  display: grid;
  gap: 0.8rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
}

input {
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 0.62rem 0.75rem;
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--surface);
}

button {
  background: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 80%, #000 20%);
  color: #fff;
  border-radius: 10px;
  padding: 0.55rem 0.82rem;
  cursor: pointer;
  font-size: 0.9rem;
}

button.secondary {
  background: #334155;
  border-color: #1e293b;
}

button.danger {
  background: var(--danger);
  border-color: color-mix(in srgb, var(--danger) 80%, #000 20%);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  margin: 0.8rem 0 0;
  color: var(--danger);
  background: var(--error-bg);
  padding: 0.5rem;
  border-radius: 8px;
  white-space: pre-wrap;
}

pre {
  margin: 0.8rem 0 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--pre-bg);
  padding: 0.6rem;
  white-space: pre-wrap;
}

pre.error {
  border-color: #fecaca;
}

#workspace {
  position: relative;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 1rem;
  width: min(98vw, 1400px);
  height: 96dvh;
  margin: 2dvh auto;
}

#workspace.sidebar-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

#workspace.sidebar-collapsed .sidebar {
  display: none;
}

.sidebar {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 0;
  z-index: 35;
}

.sidebar-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
}

.sidebar-head-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.sidebar-head-actions button {
  font-size: 0.78rem;
  padding: 0.34rem 0.5rem;
}

.session-list {
  overflow: auto;
  padding: 0.5rem;
  display: grid;
  gap: 0.45rem;
  align-content: start;
  grid-auto-rows: max-content;
}

.session-item {
  color: var(--ink);
  width: 100%;
  border: 1px solid var(--line);
  background: var(--surface-alt);
  border-radius: 10px;
  padding: 0.6rem 0.65rem;
  cursor: pointer;
  text-align: left;
}

.session-item.active {
  border-color: var(--accent);
  background: var(--session-active);
}

.session-item .meta {
  color: var(--muted);
  font-size: 0.8rem;
}

.session-status {
  display: inline-block;
  border-radius: 999px;
  padding: 0.08rem 0.42rem;
  border: 1px solid transparent;
  font-size: 0.72rem;
  text-transform: lowercase;
}

.session-status.running {
  color: #065f46;
  background: #d1fae5;
  border-color: #86efac;
}

.session-status.suspended {
  color: #92400e;
  background: #fef3c7;
  border-color: #fcd34d;
}

.session-status.stopped {
  color: #475569;
  background: #e2e8f0;
  border-color: #cbd5e1;
}

.actions {
  border-top: 1px solid var(--line);
  padding: 0.75rem;
  display: grid;
  gap: 0.5rem;
}

.drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 25;
}

.terminal-pane {
  min-height: 0;
  background: #0a0f17;
  border-radius: 12px;
  border: 1px solid #1e2a3d;
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.7rem;
  background: #0f172a;
  color: #d7e1ef;
  font-size: 0.85rem;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}

#active-session {
  display: inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.toolbar button {
  font-size: 0.8rem;
  padding: 0.42rem 0.56rem;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.22rem 0.55rem;
  font-size: 0.72rem;
  background: #334155;
  color: #f8fafc;
}

.badge.control {
  background: #0f766e;
}

.badge.queue {
  background: #92400e;
}

#terminal {
  padding: 0.2rem;
  min-height: 0;
}

.status {
  border-top: 1px solid #1e2a3d;
  font-size: 0.75rem;
  color: #9fb1c7;
  padding: 0.4rem 0.6rem;
}

.security-pane {
  min-height: 0;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  display: grid;
  align-content: start;
  gap: 0.9rem;
}

.security-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
}

.security-header h2 {
  margin: 0;
}

.security-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.8rem;
  background: var(--surface-alt);
}

.security-card h3 {
  margin: 0 0 0.7rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.checkbox input {
  width: 1rem;
  height: 1rem;
  margin: 0;
}

.stack {
  margin-top: 0.8rem;
}

@media (max-width: 960px) {
  body {
    overflow: hidden;
  }

  #workspace {
    width: 100vw;
    height: 100dvh;
    margin: 0;
    gap: 0;
    grid-template-columns: 1fr;
    background: #0a0f17;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }

  .sidebar {
    position: fixed;
    inset: env(safe-area-inset-top) auto env(safe-area-inset-bottom) 0;
    width: min(84vw, 360px);
    border-radius: 0 12px 12px 0;
    transform: translateX(-104%);
    transition: transform 150ms ease;
    z-index: 35;
  }

  #workspace.drawer-open .sidebar {
    transform: translateX(0);
  }

  #workspace.drawer-open .drawer-overlay {
    display: block !important;
  }

  .terminal-pane,
  .security-pane {
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    height: 100%;
  }

  .toolbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .toolbar-left,
  .toolbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  #workspace.mobile-terminal-focus .terminal-pane {
    display: grid;
  }

  #workspace.mobile-terminal-focus #toggle-sidebar {
    display: inline-flex !important;
    align-items: center;
  }

  #collapse-sidebar {
    display: none;
  }

  #workspace.mobile-terminal-focus .sidebar {
    display: grid;
  }

  .security-pane {
    overflow: auto;
    background: var(--bg);
  }
}