/* ============================ Theme tokens ============================ */
:root {
  --bg: #0e1116;
  --bg-elevated: #161b22;
  --bg-card: #1a2029;
  --bg-input: #0d1117;
  --border: #2a313c;
  --border-strong: #3a424f;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #3b82f6;
  --accent-hover: #2563eb;

  --green: #2ea043;
  --gray: #6e7681;
  --red: #f85149;
  --yellow: #d29922;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
}

button { font-family: inherit; }

.muted { color: var(--text-muted); }

/* ============================== Buttons ============================== */
.btn {
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  white-space: nowrap;
}
.btn:hover { background: #20262f; border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:disabled:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}
.btn:disabled:active { transform: none; }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; padding: 0.7rem; font-size: 0.95rem; }
.btn-icon { padding: 0.35rem 0.55rem; }

.btn-success { color: var(--green); }
.btn-success:hover { border-color: var(--green); }
.btn-warn { color: var(--yellow); }
.btn-warn:hover { border-color: var(--yellow); }
.btn-danger { color: var(--red); }
.btn-danger:hover { border-color: var(--red); }

/* ============================ Login page ============================ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
  background:
    radial-gradient(900px 500px at 50% -10%, rgba(59, 130, 246, 0.12), transparent),
    var(--bg);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.login-logo { text-align: center; margin-bottom: 1.75rem; }
.logo-mark {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}
.logo-sub { display: block; margin-top: 0.5rem; color: var(--text-muted); font-size: 0.9rem; }

.field { display: block; margin-bottom: 1.1rem; }
.field span { display: block; margin-bottom: 0.35rem; font-size: 0.85rem; color: var(--text-muted); }
.field input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25); }

.login-error { color: var(--red); font-size: 0.85rem; min-height: 1.2rem; margin: 0.75rem 0 0; text-align: center; }

/* ============================== Header ============================== */
.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-title { font-weight: 600; }
.header-status { display: flex; align-items: center; gap: 0.5rem; color: var(--text-muted); font-size: 0.85rem; }
.header-actions { margin-left: auto; display: flex; gap: 0.5rem; flex-wrap: wrap; }

.conn-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gray); transition: background 0.2s; }
.conn-dot.online { background: var(--green); box-shadow: 0 0 8px rgba(46, 160, 67, 0.7); }
.conn-dot.offline { background: var(--red); }

/* =============================== Tabs =============================== */
.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0 1.25rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 57px;
  z-index: 15;
}
.tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-size: 0.9rem;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

/* ============================== Content ============================== */
.content { padding: 1.25rem; max-width: 1400px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.toolbar { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.search-input {
  flex: 1;
  min-width: 180px;
  padding: 0.55rem 0.8rem;
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
}
.search-input:focus { outline: none; border-color: var(--accent); }

.empty-state { text-align: center; color: var(--text-muted); padding: 3rem 1rem; }

/* =========================== Process cards =========================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 1rem;
}
.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.process-card.status-online { border-left: 3px solid var(--green); }
.process-card.status-stopped { border-left: 3px solid var(--gray); }
.process-card.status-errored { border-left: 3px solid var(--red); }
.process-card.status-launching { border-left: 3px solid var(--yellow); }

.card-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.card-name { font-weight: 600; font-size: 1rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-id { color: var(--text-muted); font-size: 0.8rem; font-family: var(--mono); }

.status-badge {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}
.status-badge.online { background: rgba(46, 160, 67, 0.15); color: var(--green); }
.status-badge.stopped { background: rgba(110, 118, 129, 0.18); color: #adbac7; }
.status-badge.errored { background: rgba(248, 81, 73, 0.15); color: var(--red); }
.status-badge.launching { background: rgba(210, 153, 34, 0.15); color: var(--yellow); }

.card-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem 1rem;
  font-size: 0.85rem;
}
.metric { display: flex; justify-content: space-between; gap: 0.5rem; }
.metric .label { color: var(--text-muted); }
.metric .value { font-family: var(--mono); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.metric.full { grid-column: 1 / -1; }

.card-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.card-actions .btn { flex: 1; min-width: 64px; text-align: center; padding: 0.45rem 0.5rem; }

/* ============================ Monitoring ============================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat-label { color: var(--text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.4px; }
.stat-value { font-size: 1.8rem; font-weight: 600; font-family: var(--mono); }
.stat-value.small { font-size: 1.1rem; }
.accent-green { color: var(--green); }

.meter { height: 6px; background: var(--bg-input); border-radius: 999px; overflow: hidden; margin-top: 0.3rem; }
.meter-fill { height: 100%; width: 0%; background: var(--accent); border-radius: 999px; transition: width 0.4s ease; }
.meter-fill.warn { background: var(--yellow); }
.meter-fill.crit { background: var(--red); }

.host-info {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.5rem 1.5rem;
}
.host-info strong { color: var(--text); font-weight: 500; }

/* ============================== Modal ============================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 900px;
  height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { margin: 0; font-size: 1.05rem; font-family: var(--mono); }

.modal-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.log-tabs { display: flex; gap: 0.25rem; }
.log-tab {
  background: var(--bg-input);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
}
.log-tab.active { color: var(--text); border-color: var(--accent); background: #20262f; }
.checkbox { display: flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; color: var(--text-muted); cursor: pointer; }

.log-output {
  flex: 1;
  margin: 0;
  padding: 1rem 1.1rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--bg-input);
}
.log-output .log-err { color: var(--red); }
.log-output mark { background: var(--yellow); color: #000; }

/* ============================== Toasts ============================== */
.toast-container { position: fixed; bottom: 1rem; right: 1rem; display: flex; flex-direction: column; gap: 0.5rem; z-index: 80; }
.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-size: 0.85rem;
  box-shadow: var(--shadow);
  animation: slideIn 0.2s ease;
  max-width: 320px;
}
.toast.success { border-left-color: var(--green); }
.toast.error { border-left-color: var(--red); }
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ============================ Responsive ============================ */
@media (max-width: 600px) {
  body { font-size: 14px; }
  .app-header { gap: 0.6rem; padding: 0.6rem 0.85rem; }
  .header-actions { width: 100%; }
  .header-actions .btn { flex: 1; }
  .tabs { top: 0; position: static; }
  .app-header { position: static; }
  .content { padding: 0.85rem; }
  .process-grid { grid-template-columns: 1fr; }
  .stat-value { font-size: 1.5rem; }
  .modal { height: 88vh; }
  .modal-toolbar { gap: 0.5rem; }
  .modal-toolbar .search-input { order: 5; width: 100%; flex-basis: 100%; }
}